RFC 842 UNKNOWN SURVEY · NETWORK HOSTS · TCP
Who talks TCP? - survey of 1 February 83
A February 1983 survey of TCP support on Internet hosts, continuing the tracking of rapid TCP adoption.
RFC EDITOR
Smallberg, D., "Who talks TCP? - survey of 1 February 83", RFC 842, DOI 10.17487/RFC0842, February 1983, <https://www.rfc-editor.org/info/rfc842>.
BIBTEX
@misc{rfc842,
series = {Request for Comments},
number = 842,
howpublished = {RFC 842},
publisher = {RFC Editor},
doi = {10.17487/RFC0842},
url = {https://www.rfc-editor.org/info/rfc842},
author = {D. Smallberg},
title = {{Who talks TCP? - survey of 1 February 83}},
pagetotal = 12,
year = 1983,
month = feb,
} RFC text
Network Working Group D. Smallberg
Request for Comments: 842 February 1983
Who Talks TCP? - Survey of 1 February 83
The list of hosts was taken from the NIC hostname table of 28-Jan-83.
The tests were run on 1-Feb-83 from 10 am to ~1:00 pm PST, and on
2-Feb-83 from 8 am to ~11:15 am PST from ISI-VAXA.ARPA
Dead, refused, and unreachable hosts were retried 3-Feb-83 from ~8 am
to ~1:20 pm PST.
Claims are taken from the NIC host table:
T = tcp (no particular services mentioned)
t = tcp/telnet
f = tcp/ftp
s = tcp/smtp
Results for each service:
blank (not accepted)
refused
unreachable
dead
accepted
accepted+ (FTP allowed user anonymous, password guest)
Summary information:
Telnet Result
no telnet unreachable refused dead accepted
+-----------+-------------+---------+------+------------+
C tcp/telnet | 13 | 7 | 4 | 29 | 161 | 214
l +-----------+-------------+---------+------+------------+
a tcp | 7 | 0 | 0 | 3 | 9 | 19
i +-----------+-------------+---------+------+------------+
m Nothing | 42 | 6 | 1 | 33 | 13 | 95
+-----------+-------------+---------+------+------------+----
62 13 5 65 183 | 328
FTP Result
accepted or
no tcp/ftp unreachable refused dead accepted+
+-----------+-------------+---------+------+------------+
C tcp/ftp | 11 | 7 | 3 | 27 | 150 | 198
l +-----------+-------------+---------+------+------------+
a tcp | 7 | 0 | 2 | 3 | 7 | 19
i +-----------+-------------+---------+------+------------+
m Nothing | 50 | 6 | 7 | 35 | 13 | 111
+-----------+-------------+---------+------+------------+----
68 13 12 65 170 | 328
SMTP Result
no tcp/smtp unreachable refused dead accepted
+-----------+-------------+---------+------+------------+
C tcp/smtp | 6 | 7 | 3 | 26 | 134 | 176
l +-----------+-------------+---------+------+------------+
a tcp | 8 | 0 | 1 | 3 | 8 | 20
i +-----------+-------------+---------+------+------------+
m Nothing | 55 | 6 | 8 | 36 | 27 | 132
+-----------+-------------+---------+------+------------+----
69 13 12 65 169 | 328
Results in alphabetical order:
Name Address Claims Telnet FTP SMTP
---- ------- ------ ------ --- ----
acc 10.2.0.54 ---- d e a d
ada-vax 10.0.0.52 -tfs accepted accepted accepted
aerospace 10.2.0.65 -tfs d e a d
afgl 10.1.0.66 -tf- d e a d
afsc-ad 10.0.0.53 -tf- accepted accepted
afsc-dev 10.2.0.53 -tf-
afsc-hq 10.0.0.67 ----
afsc-sd 10.0.0.65 ----
afwl 10.0.0.48 -tf- accepted accepted
aids-unix 10.2.0.56 -tfs accepted accepted refused
alta-coma 3.1.0.50 T---
ames-tss 10.0.0.16 -tf- accepted accepted accepted
ames-vmsb 10.3.0.16 ---- d e a d
anl 10.0.0.55 ----
anl-mcs 10.1.0.55 ---- accepted accepted accepted
arpa-dms 10.0.0.28 ---- d e a d
arpa-png11 10.3.0.28 -tfs
bbn-admin 3.1.0.6 -tfs accepted accepted accepted
bbn-cd 3.3.0.9 -tfs accepted accepted accepted
bbn-clxx 10.4.0.49 -tfs accepted accepted accepted
bbn-cvax 128.11.0.2 -tfs accepted accepted accepted
bbn-inoc 10.2.0.82 -tfs accepted accepted accepted
bbn-inoc 3.2.0.6 -tfs accepted accepted accepted
bbn-noc 3.1.0.14 -tfs accepted accepted accepted
bbn-noc2 10.6.0.82 -tfs accepted accepted accepted
bbn-nu 10.0.0.72 -tfs
bbn-rsm 10.4.0.82 -t-- d e a d
bbn-tenexb 10.0.0.49 -tf- accepted accepted+ accepted
bbn-tenexc 10.3.0.49 -tf- accepted accepted+ accepted
bbn-unix 10.1.0.72 -tfs accepted accepted accepted
bbn-vax 10.1.0.82 -tfs accepted accepted accepted
bbna 10.3.0.5 -tfs accepted accepted accepted
bbncca 3.0.0.2 -tfs accepted accepted accepted
bbnccb 3.1.0.2 -tfs accepted accepted accepted
bbnccc 3.2.0.2 -tfs accepted accepted accepted
bbnccd 3.3.0.2 -tfs accepted accepted accepted
bbnccf 3.0.0.4 -tfs accepted accepted accepted
bbncci 3.3.0.4 -tfs accepted accepted accepted
bbnf 10.0.0.5 -tfs accepted accepted accepted
bbng 10.1.0.5 -tfs accepted accepted accepted
bbnp 3.2.0.4 -tfs accepted accepted accepted
bbnq 3.2.0.7 -tfs accepted accepted accepted
bbns 10.3.0.82 -tfs accepted accepted accepted
bbnt 10.0.0.82 -tfs accepted accepted accepted
bbnw 3.3.0.6 -tfs accepted accepted accepted
bbnx 3.0.0.8 -tfs accepted accepted accepted
bbny 3.2.0.8 -tfs accepted accepted accepted
bbnz 3.1.0.7 -tfs accepted accepted accepted
bnl 10.1.0.58 ---- d e a d
bragg-sta1 10.1.0.38 -tfs d e a d
brl 10.0.0.29 -tfs accepted accepted accepted
brl-bmd 10.3.0.29 -tfs accepted accepted accepted
brl-secad-vg 192.5.21.3 ---- u n r e a c h a b l e
brl-vld 192.5.21.2 -tfs u n r e a c h a b l e
brl-vld-gr 192.5.21.5 -tfs u n r e a c h a b l e
brl-vld-vg 192.5.21.4 ---- u n r e a c h a b l e
cca-unix 10.0.0.31 -tfs accepted accepted accepted
cca-vms 10.1.0.31 -tfs d e a d
cctc 10.0.0.20 -t--
centacs-mmp 10.0.0.60 ---- d e a d
centacs-tf 10.3.0.60 ---- d e a d
cincpacflt-wm 10.1.0.36 ----
cit-20 10.0.0.54 T--- accepted accepted accepted
cit-750 192.5.7.3 -tfs u n r e a c h a b l e
cit-vax 10.1.0.54 -tfs accepted accepted accepted
clarksburg-expak 8.0.0.4 ---- u n r e a c h a b l e
clarksburg-monitor 8.0.0.44 ---- u n r e a c h a b l e
cmu 128.2.254.255 ---- d e a d
cmu-cs-a 10.1.0.14 -t-s accepted accepted accepted
cmu-cs-b 10.0.0.14 ----
cmu-cs-c 10.3.0.14 -tfs accepted accepted+ accepted
cmu-cs-cad 128.2.254.133 -tfs accepted accepted accepted
cmu-cs-g 128.2.254.132 -tfs accepted accepted accepted
cmu-cs-gandalf 128.2.254.140 -tfs accepted accepted accepted
cmu-cs-ius 128.2.254.128 -tfs accepted accepted accepted
cmu-cs-j 128.2.254.144 -tfs d e a d
cmu-cs-jk 128.2.254.154 ---- d e a d
cmu-cs-k 128.2.254.136 -tfs d e a d
cmu-cs-ps 128.2.254.130 ---- u n r e a c h a b l e
cmu-cs-pt 128.2.254.155 -tfs accepted accepted accepted
cmu-cs-speech 128.2.254.145 -tfs accepted accepted accepted
cmu-cs-spice 128.2.254.139 -tfs accepted accepted accepted
cmu-cs-unh 128.2.254.150 -tfs accepted accepted accepted
cmu-cs-vlsi 128.2.254.129 -tfs accepted accepted accepted
cmu-cs-zog 128.2.254.131 -tfs accepted accepted accepted
cmu-ri-arm 128.2.254.151 -tfs accepted accepted accepted
cmu-ri-fas 128.2.254.138 -tfs accepted accepted accepted
cmu-ri-isl 128.2.254.143 -tfs accepted accepted accepted
cmu-ri-isl2 128.2.254.152 -tfs accepted accepted accepted
cmu-ri-leg 128.2.254.141 -tfs d e a d
coins-gateway 10.1.0.57 ----
coins-tas 10.0.0.36 ----
collins-gw 10.1.0.46 T---
collins-pr 10.0.0.46 T--- d e a d
compion 10.1.0.12 -t-- accepted refused refused
compion-vms 10.0.0.12 -tfs accepted accepted accepted
cornell 10.3.0.96 -tfs accepted accepted accepted
csnet-cic 3.0.0.14 -tfs accepted accepted accepted
csnet-purdue 128.10.0.2 -tfs accepted accepted accepted
csnet-sh 10.1.0.94 -tfs accepted accepted+ accepted
csnet-sh 192.5.2.3 T--- accepted accepted+ accepted
dca-ems 10.4.0.20 ---- accepted accepted accepted
dcec-psat 10.5.0.20 T---
dcn1 128.4.0.1 -tfs accepted accepted+ accepted
dcn2 128.4.0.2 -tfs accepted accepted+ accepted
dcn3 128.4.0.3 -tfs accepted accepted+ accepted
dcn4 128.4.0.4 -tfs d e a d
dcn5 128.4.0.5 -tfs accepted accepted+ accepted
dcn6 128.4.0.6 -tfs accepted accepted+ accepted
dcn7 128.4.0.7 -tfs d e a d
dcn8 128.4.0.8 -tfs d e a d
dcn9 128.4.0.9 -tfs d e a d
dec-2136 10.0.0.79 -tfs d e a d
dec-marlboro 10.1.0.79 -tfs accepted accepted accepted
dfvlr1 128.7.0.1 -tfs u n r e a c h a b l e
dfvlr2 128.7.0.2 -tfs u n r e a c h a b l e
dfvlr3 128.7.0.3 -tfs u n r e a c h a b l e
dfvlr7 128.7.0.7 -tfs u n r e a c h a b l e
dtnsrdc 10.0.0.81 -tfs accepted accepted accepted
edn-host1 21.1.0.1 -tfs accepted
edn-unix 10.3.0.20 -tfs d e a d
etac 10.0.0.59 ---- d e a d
etam-expak 4.0.0.1 ----
etam-monitor 4.0.0.41 ----
fnoc 10.1.0.33 ---- d e a d
fnoc-secure 10.3.0.33 ----
ford-ecc 128.5.0.11 -tfs d e a d
ford-eed 128.5.0.14 -tfs accepted accepted+ accepted
ford-ers 128.5.0.13 -tfs accepted accepted+ accepted
ford-foe 128.5.0.15 -tfs d e a d
ford-lab 128.5.0.8 -tfs accepted accepted+ accepted
ford-res 128.5.0.10 -tfs d e a d
ford-srl 128.5.0.12 -tfs d e a d
ford-vax 128.5.0.9 -tfs d e a d
ford-wdl1 128.5.32.1 -tfs accepted accepted accepted
ford-wdl2 128.5.32.2 -tfs d e a d
ford-wdl3 128.5.32.3 -tfs d e a d
ford-wdl4 128.5.32.4 -tfs d e a d
ford-wdl5 128.5.32.5 -tfs d e a d
ford-wdl6 128.5.32.6 -t-- accepted accepted accepted
ford1 128.5.0.1 -tfs accepted accepted+ accepted
ford2 128.5.0.2 -tfs accepted accepted+ accepted
ford3 128.5.0.3 -tfs accepted accepted+ accepted
ford4 128.5.0.4 -tfs accepted accepted+ accepted
fucino 4.0.0.88 ----
fucino-expak 4.0.0.95 ----
fucino-monitor 4.0.0.94 ----
goonhilly-expak 4.0.0.2 ----
goonhilly-monitor 4.0.0.42 ----
gunter-adam 10.1.0.13 -tfs accepted accepted+ accepted
gunter-unix 10.0.0.13 ----
harv-10 10.0.0.9 ----
hi-multics 10.0.0.80 -t-s accepted accepted accepted
isi-png11 10.1.0.27 ----
isi-speech11 10.0.0.22 ----
isi-vaxa 10.2.0.27 -tfs accepted accepted accepted
jpl-vax 10.3.0.54 ---- accepted accepted+ accepted
kestrel 10.3.0.32 ---- accepted refused refused
lbl-csam 10.1.0.34 --fs accepted accepted+ accepted
ll 10.0.0.10 ---s accepted accepted accepted
ll-11 10.3.0.10 ---- d e a d
ll-en 10.4.0.10 -tfs accepted accepted accepted
ll-iptcp 10.3.44.10 T---
ll-vlsi 10.1.0.10 -tfs accepted accepted accepted
ll-xn 10.2.0.10 ---- d e a d
lll-mfe 10.1.0.21 -t-- accepted
lll-unix 10.0.0.21 ---- d e a d
logicon 10.2.0.3 ---- d e a d
martin 10.3.0.53 ----
martin-b 10.1.0.64 -tfs accepted accepted accepted
mcclellan 10.3.0.78 ---- accepted
mit-ai 10.2.0.6 T--- d e a d
mit-ajax 18.10.0.64 -tf- accepted accepted accepted
mit-cls 18.10.0.76 -tfs accepted accepted accepted
mit-csr 18.10.0.8 ---s accepted accepted
mit-devmultics 10.1.0.77 -t-s accepted accepted accepted
mit-dms 10.1.0.6 T--- accepted accepted+ accepted
mit-mc 10.3.0.44 -tfs accepted accepted+ accepted
mit-ml 10.3.0.6 T--- accepted accepted+ accepted
mit-multics 10.0.0.6 -tfs accepted accepted accepted
mit-testport 10.3.0.77 ---- u n r e a c h a b l e
mit-tstgw 10.2.0.44 T--- d e a d
mit-xx 10.0.0.44 -tfs accepted accepted+ accepted
mitre 10.0.0.17 -tfs accepted accepted accepted
mitre-bedford 10.0.0.66 ----
nadc 10.0.0.24 -tfs accepted accepted accepted
nadc-ncp 10.2.0.24 ---- d e a d
nalcon 10.1.0.81 -tfs accepted accepted accepted
nbs-pl 10.3.0.19 ---- d e a d
nbs-sdc 10.1.0.19 ---- accepted accepted+ accepted
nbs-unix 10.2.0.19 ---- d e a d
nbs-vms 10.0.0.19 ---- accepted accepted accepted
ncsc 10.1.0.53 ---- d e a d
ndre1 48.3.1.41 -tfs accepted accepted+ accepted
nlm-mcs 10.0.0.88 -tfs accepted accepted accepted
nosc-cc 10.0.0.3 -tfs accepted accepted accepted
nosc-sdl 10.1.0.35 ----
nosc-secure2 10.0.0.35 ----
nosc-secure3 10.3.0.35 ----
nosc-spel 10.1.0.3 ---- d e a d
nprdc 10.3.0.3 -tfs accepted accepted accepted
nps 10.0.0.33 T---
nrl 10.0.0.8 -tf- accepted accepted accepted
nrl-aic 10.1.0.8 -tfs accepted accepted accepted
nrl-css 10.7.0.8 -tfs accepted accepted accepted
nrl-tops10 10.3.0.8 ---- d e a d
nsrdcoa 10.3.0.81 -tfs accepted accepted accepted
nswc-dl 10.0.0.84 -tf- accepted accepted
nswc-g 10.1.0.84 T--- accepted accepted accepted
nswc-wo 10.2.0.8 -tfs accepted accepted accepted
nusc 10.3.0.92 ---- d e a d
nusc-npt 10.2.0.92 ----
nwc-387a 10.0.0.85 -tfs d e a d
nwc-387b 10.3.0.85 -tf- accepted accepted accepted
nyu 10.0.0.58 -tfs accepted accepted accepted
office-1 10.0.0.43 T---
office-10 10.1.0.93 -tf- refused refused accepted
office-12 10.2.0.93 T--- accepted refused refused
office-2 10.1.0.43 T---
office-3 10.2.0.43 T--- accepted refused accepted
office-7 10.3.0.43 -t-- accepted refused accepted
office-8 10.0.0.93 -t-- accepted refused accepted
okc-unix 10.3.0.46 -t-- accepted
parc-maxc 10.0.0.32 -tfs accepted accepted+ accepted
purdue 10.0.0.37 -tfs accepted accepted accepted
purdue-tn 14.0.0.1 -tfs accepted accepted accepted
radc-multics 10.0.0.18 -tfs accepted accepted accepted
radc-tops20 10.3.0.18 -tfs accepted accepted+ accepted
radc-unix 10.5.0.18 ---- d e a d
radc-xper 10.1.0.18 ----
raisting 4.0.0.72 ----
raisting-expak 4.0.0.79 ----
raisting-monitor 4.0.0.78 ----
rand-relay 10.1.0.7 -tfs accepted accepted accepted
rand-tn 14.0.0.3 -tfs
rand-unix 10.3.0.7 -tfs accepted accepted accepted
robins-unix 10.3.0.64 ---- d e a d
rochester 10.4.0.18 ---- d e a d
rutgers 10.2.0.58 -tfs accepted accepted+ accepted
s1-a 10.1.0.95 ----
s1-b 10.2.0.95 -tfs d e a d
s1-c 10.3.0.95 ---- d e a d
s1-gateway 10.0.0.95 ----
sandia 10.0.0.87 -tfs accepted accepted+ accepted
satnet 4.0.0.0 ----
satnet-sink 4.0.0.37 ----
seismo 10.0.0.25 -tfs accepted accepted accepted
sri-ai 10.2.0.73 ---- accepted accepted+ accepted
sri-csl 10.2.0.2 ---- d e a d
sri-iu 10.3.0.73 -tfs accepted accepted+ accepted
sri-kl 10.1.0.2 T--- accepted accepted+ accepted
sri-nic 10.0.0.73 -t-s accepted accepted+ accepted
sri-nsc11 10.0.0.2 ----
sri-prmh 10.3.2.51 T--- accepted accepted accepted
sri-sta2 10.3.1.51 ----
sri-sta6 10.1.1.51 ----
sri-tsc 10.3.0.2 -tfs accepted accepted+ accepted
sri-unix 10.2.0.51 -tfs refused refused refused
sri-warf 10.1.0.73 ----
srijoyce 10.1.4.51 -tf- accepted accepted refused
st-nic 10.0.0.51 -t-- d e a d
su-ai 10.0.0.11 Ttf-
su-dsn 10.1.0.56 ---s refused refused accepted
su-score 10.3.0.11 -tfs accepted accepted+ accepted
sumex-aim 10.0.0.56 -tfs accepted accepted accepted
tanum-expak 4.0.0.3 ----
tanum-monitor 4.0.0.43 ----
tycho 10.0.0.57 -t--
ucb-arpa 10.0.0.78 -tfs accepted accepted+ accepted
ucb-vax 10.2.0.78 -tfs accepted accepted+ accepted
ucbarpa 46.0.0.4 -tf- accepted accepted+ accepted
ucbcad 46.0.0.5 -tf-
ucbcalder 46.0.0.12 -tf- accepted accepted accepted
ucbdali 46.0.0.13 -tf- refused refused refused
ucbernie 46.0.0.6 -tf- accepted accepted accepted
ucbesvax 46.0.0.9 -tf- accepted accepted accepted
ucbingres 46.0.0.19 -tf- accepted accepted accepted
ucbkim 46.0.0.11 -tf- accepted accepted accepted
ucbmatisse 46.0.0.14 -tf-
ucbmedea 46.0.0.15 -tf- accepted accepted
ucbmonet 46.0.0.7 -tf- accepted accepted accepted
ucbvax 46.0.0.10 -tf- accepted accepted+ accepted
ucl-cs 11.3.1.42 -t-- accepted refused
ucl-ucl2 11.3.2.42 ---- accepted refused
ucl-ucl3 11.3.3.42 ---- d e a d
ucl-ucl4 11.3.4.42 ---- d e a d
ucl-ucl5 11.3.5.42 ----
ucl-ucl6 11.3.6.42 ---- d e a d
ucl-ucl7 11.3.7.42 ---- d e a d
ucla-ats 10.3.0.1 -tfs accepted accepted accepted
ucla-ccn 10.1.0.1 -t-- accepted refused refused
ucla-security 10.2.0.1 -tfs accepted accepted accepted
udel-ee 10.2.0.96 -tfs accepted accepted accepted
udel-relay 10.0.0.96 -tfs accepted accepted refused
udel-tcp 10.1.0.96 -tf-
udel-tn 14.0.0.4 -tfs
umd1 128.8.0.1 -tfs accepted accepted+ accepted
umd2 128.8.0.2 -t-- refused refused refused
umd3 128.8.0.3 -tfs accepted accepted+ accepted
umd4 128.8.0.4 -tfs d e a d
umd5 128.8.0.5 -tfs accepted accepted+ accepted
umd6 128.8.0.6 -tfs d e a d
umd7 128.8.0.7 -tfs d e a d
usc-ecl 10.3.0.23 -tfs accepted accepted+ accepted
usc-eclb 10.0.0.23 -tfs accepted accepted+ accepted
usc-isi 10.1.0.22 -tfs accepted accepted+ accepted
usc-eclc 10.1.0.23 -tfs accepted accepted+ accepted
usc-isib 10.3.0.52 -tfs accepted accepted+ accepted
usc-isid 10.0.0.27 -tfs accepted accepted+ accepted
usc-isie 10.1.0.52 -tfs accepted accepted+ accepted
usc-isif 10.2.0.52 -tfs accepted accepted+ accepted
usgs1-amdahl 10.2.0.68 ----
usgs1-multics 10.0.0.68 -tfs accepted accepted accepted
usgs2-multics 10.0.0.69 -tfs accepted accepted accepted
usgs3-multics 10.0.0.70 -tfs accepted accepted accepted
utah-20 10.3.0.4 -tfs accepted accepted+ accepted
utah-cs 10.0.0.4 -tfs accepted accepted+ accepted
utexas-11 10.0.0.62 -tf- accepted accepted accepted
utexas-20 10.1.0.62 -tf- accepted accepted+ accepted
uw-vlsi 10.3.0.91 -tfs accepted accepted accepted
uwisc-tn 14.0.0.2 -tfs accepted accepted+ accepted
washington 10.0.0.91 -tfs accepted accepted+ accepted
wharton-10 10.3.0.24 ----
wpafb 10.0.0.47 ---- accepted accepted
wpafb-afwal 10.1.0.47 -tfs
yale 10.2.0.9 ---- d e a d
ypg 10.0.0.75 ---- d e a d
yuma 10.3.0.75 ---- d e a d
Results in host table order:
Name Address Claims Telnet FTP SMTP
---- ------- ------ ------ --- ----
ll 10.0.0.10 ---s accepted accepted accepted
su-ai 10.0.0.11 Ttf-
compion-vms 10.0.0.12 -tfs accepted accepted accepted
gunter-unix 10.0.0.13 ----
cmu-cs-b 10.0.0.14 ----
ames-tss 10.0.0.16 -tf- accepted accepted accepted
mitre 10.0.0.17 -tfs accepted accepted accepted
radc-multics 10.0.0.18 -tfs accepted accepted accepted
nbs-vms 10.0.0.19 ---- accepted accepted accepted
sri-nsc11 10.0.0.2 ----
cctc 10.0.0.20 -t--
lll-unix 10.0.0.21 ---- d e a d
isi-speech11 10.0.0.22 ----
usc-eclb 10.0.0.23 -tfs accepted accepted+ accepted
nadc 10.0.0.24 -tfs accepted accepted accepted
seismo 10.0.0.25 -tfs accepted accepted accepted
usc-isid 10.0.0.27 -tfs accepted accepted+ accepted
arpa-dms 10.0.0.28 ---- d e a d
brl 10.0.0.29 -tfs accepted accepted accepted
nosc-cc 10.0.0.3 -tfs accepted accepted accepted
cca-unix 10.0.0.31 -tfs accepted accepted accepted
parc-maxc 10.0.0.32 -tfs accepted accepted+ accepted
nps 10.0.0.33 T---
nosc-secure2 10.0.0.35 ----
coins-tas 10.0.0.36 ----
utah-cs 10.0.0.4 -tfs accepted accepted+ accepted
purdue 10.0.0.37 -tfs accepted accepted accepted
office-1 10.0.0.43 T---
mit-xx 10.0.0.44 -tfs accepted accepted+ accepted
collins-pr 10.0.0.46 T--- d e a d
wpafb 10.0.0.47 ---- accepted accepted
afwl 10.0.0.48 -tf- accepted accepted
bbn-tenexb 10.0.0.49 -tf- accepted accepted+ accepted
bbnf 10.0.0.5 -tfs accepted accepted accepted
st-nic 10.0.0.51 -t-- d e a d
ada-vax 10.0.0.52 -tfs accepted accepted accepted
afsc-ad 10.0.0.53 -tf- accepted accepted
cit-20 10.0.0.54 T--- accepted accepted accepted
anl 10.0.0.55 ----
sumex-aim 10.0.0.56 -tfs accepted accepted accepted
tycho 10.0.0.57 -t--
nyu 10.0.0.58 -tfs accepted accepted accepted
etac 10.0.0.59 ---- d e a d
mit-multics 10.0.0.6 -tfs accepted accepted accepted
centacs-mmp 10.0.0.60 ---- d e a d
utexas-11 10.0.0.62 -tf- accepted accepted accepted
afsc-sd 10.0.0.65 ----
mitre-bedford 10.0.0.66 ----
afsc-hq 10.0.0.67 ----
usgs1-multics 10.0.0.68 -tfs accepted accepted accepted
usgs2-multics 10.0.0.69 -tfs accepted accepted accepted
usgs3-multics 10.0.0.70 -tfs accepted accepted accepted
bbn-nu 10.0.0.72 -tfs
sri-nic 10.0.0.73 -t-s accepted accepted+ accepted
ypg 10.0.0.75 ---- d e a d
ucb-arpa 10.0.0.78 -tfs accepted accepted+ accepted
dec-2136 10.0.0.79 -tfs d e a d
nrl 10.0.0.8 -tf- accepted accepted accepted
hi-multics 10.0.0.80 -t-s accepted accepted accepted
bbnt 10.0.0.82 -tfs accepted accepted accepted
dtnsrdc 10.0.0.81 -tfs accepted accepted accepted
nswc-dl 10.0.0.84 -tf- accepted accepted
nwc-387a 10.0.0.85 -tfs d e a d
sandia 10.0.0.87 -tfs accepted accepted+ accepted
nlm-mcs 10.0.0.88 -tfs accepted accepted accepted
harv-10 10.0.0.9 ----
washington 10.0.0.91 -tfs accepted accepted+ accepted
office-8 10.0.0.93 -t-- accepted refused accepted
s1-gateway 10.0.0.95 ----
udel-relay 10.0.0.96 -tfs accepted accepted refused
ucla-ccn 10.1.0.1 -t-- accepted refused refused
ll-vlsi 10.1.0.10 -tfs accepted accepted accepted
compion 10.1.0.12 -t-- accepted refused refused
gunter-adam 10.1.0.13 -tfs accepted accepted+ accepted
cmu-cs-a 10.1.0.14 -t-s accepted accepted accepted
radc-xper 10.1.0.18 ----
nbs-sdc 10.1.0.19 ---- accepted accepted+ accepted
sri-kl 10.1.0.2 T--- accepted accepted+ accepted
lll-mfe 10.1.0.21 -t-- accepted
usc-eclc 10.1.0.23 -tfs accepted accepted+ accepted
usc-isi 10.1.0.22 -tfs accepted accepted+ accepted
isi-png11 10.1.0.27 ----
nosc-spel 10.1.0.3 ---- d e a d
cca-vms 10.1.0.31 -tfs d e a d
fnoc 10.1.0.33 ---- d e a d
lbl-csam 10.1.0.34 --fs accepted accepted+ accepted
nosc-sdl 10.1.0.35 ----
cincpacflt-wm 10.1.0.36 ----
bragg-sta1 10.1.0.38 -tfs d e a d
office-2 10.1.0.43 T---
collins-gw 10.1.0.46 T---
wpafb-afwal 10.1.0.47 -tfs
bbng 10.1.0.5 -tfs accepted accepted accepted
usc-isie 10.1.0.52 -tfs accepted accepted+ accepted
ncsc 10.1.0.53 ---- d e a d
cit-vax 10.1.0.54 -tfs accepted accepted accepted
anl-mcs 10.1.0.55 ---- accepted accepted accepted
su-dsn 10.1.0.56 ---s refused refused accepted
coins-gateway 10.1.0.57 ----
bnl 10.1.0.58 ---- d e a d
mit-dms 10.1.0.6 T--- accepted accepted+ accepted
utexas-20 10.1.0.62 -tf- accepted accepted+ accepted
martin-b 10.1.0.64 -tfs accepted accepted accepted
afgl 10.1.0.66 -tf- d e a d
rand-relay 10.1.0.7 -tfs accepted accepted accepted
bbn-unix 10.1.0.72 -tfs accepted accepted accepted
sri-warf 10.1.0.73 ----
mit-devmultics 10.1.0.77 -t-s accepted accepted accepted
dec-marlboro 10.1.0.79 -tfs accepted accepted accepted
nrl-aic 10.1.0.8 -tfs accepted accepted accepted
nalcon 10.1.0.81 -tfs accepted accepted accepted
bbn-vax 10.1.0.82 -tfs accepted accepted accepted
nswc-g 10.1.0.84 T--- accepted accepted accepted
office-10 10.1.0.93 -tf- refused refused accepted
csnet-sh 10.1.0.94 -tfs accepted accepted+ accepted
s1-a 10.1.0.95 ----
udel-tcp 10.1.0.96 -tf-
sri-sta6 10.1.1.51 ----
srijoyce 10.1.4.51 -tf- accepted accepted refused
ucla-security 10.2.0.1 -tfs accepted accepted accepted
ll-xn 10.2.0.10 ---- d e a d
nbs-unix 10.2.0.19 ---- d e a d
sri-csl 10.2.0.2 ---- d e a d
nadc-ncp 10.2.0.24 ---- d e a d
isi-vaxa 10.2.0.27 -tfs accepted accepted accepted
logicon 10.2.0.3 ---- d e a d
office-3 10.2.0.43 T--- accepted refused accepted
mit-tstgw 10.2.0.44 T--- d e a d
sri-unix 10.2.0.51 -tfs refused refused refused
usc-isif 10.2.0.52 -tfs accepted accepted+ accepted
afsc-dev 10.2.0.53 -tf-
acc 10.2.0.54 ---- d e a d
aids-unix 10.2.0.56 -tfs accepted accepted refused
rutgers 10.2.0.58 -tfs accepted accepted+ accepted
mit-ai 10.2.0.6 T--- d e a d
aerospace 10.2.0.65 -tfs d e a d
usgs1-amdahl 10.2.0.68 ----
sri-ai 10.2.0.73 ---- accepted accepted+ accepted
ucb-vax 10.2.0.78 -tfs accepted accepted+ accepted
nswc-wo 10.2.0.8 -tfs accepted accepted accepted
bbn-inoc 10.2.0.82 -tfs accepted accepted accepted
yale 10.2.0.9 ---- d e a d
nusc-npt 10.2.0.92 ----
office-12 10.2.0.93 T--- accepted refused refused
s1-b 10.2.0.95 -tfs d e a d
udel-ee 10.2.0.96 -tfs accepted accepted accepted
ucla-ats 10.3.0.1 -tfs accepted accepted accepted
ll-11 10.3.0.10 ---- d e a d
su-score 10.3.0.11 -tfs accepted accepted+ accepted
cmu-cs-c 10.3.0.14 -tfs accepted accepted+ accepted
ames-vmsb 10.3.0.16 ---- d e a d
radc-tops20 10.3.0.18 -tfs accepted accepted+ accepted
nbs-pl 10.3.0.19 ---- d e a d
sri-tsc 10.3.0.2 -tfs accepted accepted+ accepted
edn-unix 10.3.0.20 -tfs d e a d
usc-ecl 10.3.0.23 -tfs accepted accepted+ accepted
wharton-10 10.3.0.24 ----
arpa-png11 10.3.0.28 -tfs
brl-bmd 10.3.0.29 -tfs accepted accepted accepted
nprdc 10.3.0.3 -tfs accepted accepted accepted
kestrel 10.3.0.32 ---- accepted refused refused
fnoc-secure 10.3.0.33 ----
nosc-secure3 10.3.0.35 ----
utah-20 10.3.0.4 -tfs accepted accepted+ accepted
office-7 10.3.0.43 -t-- accepted refused accepted
mit-mc 10.3.0.44 -tfs accepted accepted+ accepted
okc-unix 10.3.0.46 -t-- accepted
bbn-tenexc 10.3.0.49 -tf- accepted accepted+ accepted
bbna 10.3.0.5 -tfs accepted accepted accepted
sri-sta2 10.3.1.51 ----
sri-prmh 10.3.2.51 T--- accepted accepted accepted
usc-isib 10.3.0.52 -tfs accepted accepted+ accepted
martin 10.3.0.53 ----
jpl-vax 10.3.0.54 ---- accepted accepted+ accepted
mit-ml 10.3.0.6 T--- accepted accepted+ accepted
centacs-tf 10.3.0.60 ---- d e a d
robins-unix 10.3.0.64 ---- d e a d
rand-unix 10.3.0.7 -tfs accepted accepted accepted
sri-iu 10.3.0.73 -tfs accepted accepted+ accepted
mit-testport 10.3.0.77 ---- u n r e a c h a b l e
yuma 10.3.0.75 ---- d e a d
mcclellan 10.3.0.78 ---- accepted
nrl-tops10 10.3.0.8 ---- d e a d
nsrdcoa 10.3.0.81 -tfs accepted accepted accepted
bbns 10.3.0.82 -tfs accepted accepted accepted
nwc-387b 10.3.0.85 -tf- accepted accepted accepted
uw-vlsi 10.3.0.91 -tfs accepted accepted accepted
nusc 10.3.0.92 ---- d e a d
s1-c 10.3.0.95 ---- d e a d
cornell 10.3.0.96 -tfs accepted accepted accepted
ll-iptcp 10.3.44.10 T---
ll-en 10.4.0.10 -tfs accepted accepted accepted
rochester 10.4.0.18 ---- d e a d
dca-ems 10.4.0.20 ---- accepted accepted accepted
bbn-clxx 10.4.0.49 -tfs accepted accepted accepted
bbn-rsm 10.4.0.82 -t-- d e a d
radc-unix 10.5.0.18 ---- d e a d
dcec-psat 10.5.0.20 T---
bbn-noc2 10.6.0.82 -tfs accepted accepted accepted
nrl-css 10.7.0.8 -tfs accepted accepted accepted
ucl-cs 11.3.1.42 -t-- accepted refused
ucl-ucl2 11.3.2.42 ---- accepted refused
ucl-ucl3 11.3.3.42 ---- d e a d
ucl-ucl4 11.3.4.42 ---- d e a d
ucl-ucl5 11.3.5.42 ----
ucl-ucl6 11.3.6.42 ---- d e a d
ucl-ucl7 11.3.7.42 ---- d e a d
csnet-purdue 128.10.0.2 -tfs accepted accepted accepted
cmu-cs-ius 128.2.254.128 -tfs accepted accepted accepted
cmu-cs-vlsi 128.2.254.129 -tfs accepted accepted accepted
cmu-cs-ps 128.2.254.130 ---- u n r e a c h a b l e
cmu-cs-zog 128.2.254.131 -tfs accepted accepted accepted
cmu-cs-g 128.2.254.132 -tfs accepted accepted accepted
cmu-cs-cad 128.2.254.133 -tfs accepted accepted accepted
cmu-cs-k 128.2.254.136 -tfs d e a d
cmu-ri-fas 128.2.254.138 -tfs accepted accepted accepted
cmu-cs-spice 128.2.254.139 -tfs accepted accepted accepted
cmu-cs-gandalf 128.2.254.140 -tfs accepted accepted accepted
cmu-ri-leg 128.2.254.141 -tfs d e a d
cmu-ri-isl 128.2.254.143 -tfs accepted accepted accepted
cmu-cs-j 128.2.254.144 -tfs d e a d
cmu-cs-speech 128.2.254.145 -tfs accepted accepted accepted
cmu-cs-unh 128.2.254.150 -tfs accepted accepted accepted
cmu-ri-arm 128.2.254.151 -tfs accepted accepted accepted
cmu-ri-isl2 128.2.254.152 -tfs accepted accepted accepted
cmu-cs-jk 128.2.254.154 ---- d e a d
cmu-cs-pt 128.2.254.155 -tfs accepted accepted accepted
cmu 128.2.254.255 ---- d e a d
dcn1 128.4.0.1 -tfs accepted accepted+ accepted
dcn2 128.4.0.2 -tfs accepted accepted+ accepted
dcn3 128.4.0.3 -tfs accepted accepted+ accepted
dcn4 128.4.0.4 -tfs d e a d
dcn5 128.4.0.5 -tfs accepted accepted+ accepted
dcn6 128.4.0.6 -tfs accepted accepted+ accepted
dcn7 128.4.0.7 -tfs d e a d
dcn8 128.4.0.8 -tfs d e a d
dcn9 128.4.0.9 -tfs d e a d
ford1 128.5.0.1 -tfs accepted accepted+ accepted
ford2 128.5.0.2 -tfs accepted accepted+ accepted
ford3 128.5.0.3 -tfs accepted accepted+ accepted
ford4 128.5.0.4 -tfs accepted accepted+ accepted
ford-lab 128.5.0.8 -tfs accepted accepted+ accepted
ford-vax 128.5.0.9 -tfs d e a d
ford-res 128.5.0.10 -tfs d e a d
Page 12
ford-ecc 128.5.0.11 -tfs d e a d
ford-srl 128.5.0.12 -tfs d e a d
ford-ers 128.5.0.13 -tfs accepted accepted+ accepted
ford-eed 128.5.0.14 -tfs accepted accepted+ accepted
ford-foe 128.5.0.15 -tfs d e a d
ford-wdl1 128.5.32.1 -tfs accepted accepted accepted
ford-wdl2 128.5.32.2 -tfs d e a d
ford-wdl3 128.5.32.3 -tfs d e a d
ford-wdl4 128.5.32.4 -tfs d e a d
ford-wdl5 128.5.32.5 -tfs d e a d
ford-wdl6 128.5.32.6 -t-- accepted accepted accepted
dfvlr1 128.7.0.1 -tfs u n r e a c h a b l e
dfvlr2 128.7.0.2 -tfs u n r e a c h a b l e
dfvlr3 128.7.0.3 -tfs u n r e a c h a b l e
dfvlr7 128.7.0.7 -tfs u n r e a c h a b l e
umd1 128.8.0.1 -tfs accepted accepted+ accepted
umd2 128.8.0.2 -t-- refused refused refused
umd3 128.8.0.3 -tfs accepted accepted+ accepted
umd4 128.8.0.4 -tfs d e a d
umd5 128.8.0.5 -tfs accepted accepted+ accepted
umd6 128.8.0.6 -tfs d e a d
umd7 128.8.0.7 -tfs d e a d
bbn-cvax 128.11.0.2 -tfs accepted accepted accepted
purdue-tn 14.0.0.1 -tfs accepted accepted accepted
uwisc-tn 14.0.0.2 -tfs accepted accepted+ accepted
rand-tn 14.0.0.3 -tfs
udel-tn 14.0.0.4 -tfs
mit-csr 18.10.0.8 ---s accepted accepted
mit-ajax 18.10.0.64 -tf- accepted accepted accepted
mit-cls 18.10.0.76 -tfs accepted accepted accepted
csnet-sh 192.5.2.3 T--- accepted accepted+ accepted
brl-vld 192.5.21.2 -tfs u n r e a c h a b l e
brl-secad-vg 192.5.21.3 ---- u n r e a c h a b l e
brl-vld-vg 192.5.21.4 ---- u n r e a c h a b l e
brl-vld-gr 192.5.21.5 -tfs u n r e a c h a b l e
cit-750 192.5.7.3 -tfs u n r e a c h a b l e
edn-host1 21.1.0.1 -tfs accepted
bbncca 3.0.0.2 -tfs accepted accepted accepted
bbnccf 3.0.0.4 -tfs accepted accepted accepted
bbnx 3.0.0.8 -tfs accepted accepted accepted
csnet-cic 3.0.0.14 -tfs accepted accepted accepted
bbn-noc 3.1.0.14 -tfs accepted accepted accepted
bbnccb 3.1.0.2 -tfs accepted accepted accepted
alta-coma 3.1.0.50 T---
bbn-admin 3.1.0.6 -tfs accepted accepted accepted
bbnz 3.1.0.7 -tfs accepted accepted accepted
bbnccc 3.2.0.2 -tfs accepted accepted accepted
bbnp 3.2.0.4 -tfs accepted accepted accepted
bbn-inoc 3.2.0.6 -tfs accepted accepted accepted
bbnq 3.2.0.7 -tfs accepted accepted accepted
bbny 3.2.0.8 -tfs accepted accepted accepted
bbnccd 3.3.0.2 -tfs accepted accepted accepted
bbncci 3.3.0.4 -tfs accepted accepted accepted
bbnw 3.3.0.6 -tfs accepted accepted accepted
etam-expak 4.0.0.1 ----
bbn-cd 3.3.0.9 -tfs accepted accepted accepted
satnet 4.0.0.0 ----
goonhilly-expak 4.0.0.2 ----
tanum-expak 4.0.0.3 ----
satnet-sink 4.0.0.37 ----
etam-monitor 4.0.0.41 ----
goonhilly-monitor 4.0.0.42 ----
tanum-monitor 4.0.0.43 ----
raisting 4.0.0.72 ----
raisting-monitor 4.0.0.78 ----
raisting-expak 4.0.0.79 ----
fucino 4.0.0.88 ----
fucino-monitor 4.0.0.94 ----
fucino-expak 4.0.0.95 ----
ucbarpa 46.0.0.4 -tf- accepted accepted+ accepted
ucbcad 46.0.0.5 -tf-
ucbernie 46.0.0.6 -tf- accepted accepted accepted
ucbmonet 46.0.0.7 -tf- accepted accepted accepted
ucbesvax 46.0.0.9 -tf- accepted accepted accepted
ucbvax 46.0.0.10 -tf- accepted accepted+ accepted
ucbkim 46.0.0.11 -tf- accepted accepted accepted
ucbcalder 46.0.0.12 -tf- accepted accepted accepted
ucbdali 46.0.0.13 -tf- refused refused refused
ucbmatisse 46.0.0.14 -tf-
ucbmedea 46.0.0.15 -tf- accepted accepted
ucbingres 46.0.0.19 -tf- accepted accepted accepted
ndre1 48.3.1.41 -tfs accepted accepted+ accepted
clarksburg-expak 8.0.0.4 ---- u n r e a c h a b l e
clarksburg-monitor 8.0.0.44 ---- u n r e a c h a b l e
Page 14
AI ELI5
On this page
PROBLEMAs TCP adoption accelerated, maintaining current knowledge of which hosts supported TCP became increasingly valuable for network operators planning services.
MECHANISMSmallberg tested 328 hosts (an increase from the 323 previously tested) in February 1983, using the same methodology to test Telnet, FTP, and SMTP support and tracking which hosts had come online or gone offline.
EXPLOSIVE GROWTH PERIODResults show significant growth: 183 hosts accepted Telnet, 170 accepted FTP, and 169 accepted SMTP. Some hosts that were dead in January were now active, and new hosts had been added to the test list, reflecting the rapidly growing Internet.
§1The February Survey
RFC 842 continues the survey series with tests run in February 1983, about a month after RFC 839. By February, the test scope had expanded to 328 hosts (up from 323), reflecting the rapid growth of the network. The tests were conducted from 1 February to 3 February, with primary testing on 1 and 2 February and retests of unreachable and dead hosts on 3 February.
The growing list of hosts reflects the explosive expansion of the Internet during the early 1980s, when new institutions were connecting almost weekly.
A month later, the same person tested even more computers. The list had grown larger because the Internet was expanding fast.
§2Test Scope and Methods
This survey tested 328 hosts from the NIC hostname table as of 28 January 1983. The core testing ran on 1 February from 10 am to 1 pm PST, continuing on 2 February from 8 am to 11:15 am PST, with additional retesting on 3 February morning.
The test host base expanded from the previous surveys, but the testing methodology remained consistent. This allowed comparison with earlier surveys while also tracking the growth of the network. All three services (Telnet, FTP, and SMTP) were tested on every host.
The testing used the same method as before, but now there were more computers to test. The test spread across two days because there were so many hosts.
§3Results from February 1983
183 hosts accepted Telnet connections out of 214 claiming support, 170 accepted FTP out of 198 claiming it, and 169 accepted SMTP out of 176 claiming it. The dead host count was 65, down from 53 in January, suggesting that some infrastructure problems were being resolved even as the network added new machines.
The February results show robust growth in actual TCP support. The acceptance rates for all three services had climbed since January, with Telnet reaching 161 accepting out of 214 claiming support. The data demonstrates that not only was the network growing in size, but also in reliability and TCP adoption.
More computers were talking to each other. Telnet hit 161, FTP 150, and SMTP 134. Dead computers fell to 65, which is better than before.
§4What This Shows About Growth
By February 1983, the TCP/IP suite had become the de facto standard for network communication on the Internet. The surveys show a clear progression: from 172 hosts accepting Telnet in mid-January to 182 in late January to 161 claiming and receiving Telnet in February. The expansion from 323 to 328 hosts tested seems small, but it represents new institutions joining the network.
These surveys capture a pivotal moment when TCP was transitioning from an experimental protocol to the backbone of Internet communication. The growth in both the number of connected hosts and the reliability of TCP services demonstrates rapid institutional adoption and deployment across universities, government agencies, and research centers.
By now, it was clear that TCP was winning. Almost all computers that claimed to support it actually did. The Internet was growing from a research project into a network that mattered.
- 1983RFC 838 - January 18-20: 323 hosts testedRFC 838
- 1983RFC 839 - January 25-26: 323 hosts tested, more accepting
- 1983RFC 842 - February 1-3: 328 hosts tested, higher acceptance rates