[SRI NISC: Domain Survery -- July 1992]
- Date: Wed, 29 Jul 92 13:58:44 BST
I don't see this forwarded yet so I'll do the honours.
FYI.
Tony Bates,
ULCC
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From: SRI NISC nisc@localhost
To: ietf@localhost
Cc: nisc@localhost, tcp-ip@localhost
Subject: Domain Survery -- July 1992
Message-Id: <CMM.0.90.2.712347476.nisc@localhost
Network Information Systems Center July 1992
SRI International Internet Domain Survey
The Domain Survey attempts to discover every host on the Internet by
doing a complete search of the Domain Name System. The latest results
gathered during late July 1992 are listed. For more information see
RFC 1296; for detailed data see the pub/zone directory on ftp.nisc.sri.com.
This survey was done using the census program developed at the University
of California Santa Cruz; see technical report UCSC-CRL-92-34 available
on host ftp.cse.ucsc.edu in pub/csl.
-- Mark K. Lottor
Hosts: 992,000 [890,000 hosts in Apr 1992]
Domains: 16,300 [approximately]
Network number analysis of all IP addresses listed in the DNS:
Percent Of Network-Address-Space Capacity Being Used
Number of Networks 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Class A: 60 100% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0%
Class B: 2714 99.9% 0.1% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0%
Class C: 3795 85.0% 7.6% 3.0% 1.5% 0.9% 0.9% 0.4% 0.2% 0.2% 0.0%
Total: 6569
[for example: 3.0% of class C networks have 30% of the available
class C address space (256 hosts) assigned to hosts]
Host Distribution by Top-Level Domain Name
326630 edu 21021 se 2902 kr 943 br 74 hu
277551 com 19192 fr 2803 il 789 mx 50 int
62584 gov 17188 ch 2733 dk 633 pl 43 ee
48639 au 15757 jp 2410 hk 624 ie 14 yu
43907 de 15718 fi 2118 tw 616 gr 8 tn
38929 ca 14354 no 2073 za 569 cs 6 in
37776 uk 7044 net 1831 nz 400 is 5 ve
33161 mil 6489 at 1532 be 201 us 5 aq
25896 org 5147 it 1318 pt 165 cl 2 ar
21105 nl 3603 es 949 sg 80 lu 1 th
Top 50 Host Names
508 venus 377 gw 303 eagle 263 fred 240 mac12
471 pluto 360 mercury 301 mac5 262 sirius 240 mac11
438 mars 355 iris 296 gauss 262 mac8 236 alpha
421 cisco 351 pc2 292 pc3 262 hermes 235 mac13
408 pc1 337 mac3 284 mac6 259 mac9 234 mac14
407 jupiter 334 orion 275 hobbes 257 calvin 231 phoenix
405 zeus 320 mac4 274 mac10 254 pc4 231 mozart
405 mac1 310 newton 271 mac7 253 apollo 231 mac15
383 mac2 310 neptune 266 thor 248 athena 227 earth
381 saturn 306 charon 263 merlin 243 titan 226 mac16
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