Internet Domain Survey 1/94

[David Farber <farber () central cis upenn edu>]

Network Information Systems Center                             January 1994
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-January 1994 are listed.  For more information see RFC 1296;
 for more data see the pub/zone directory on ftp.nisc.sri.com.




   Number of Hosts, Domains, and Nets Advertised in the Domain Name System


          January 94     Oct 93     Jul 93     Apr 93     Jan 93  Change (year)
 ==============================================================================
 Hosts:    2,217,000  2,056,000  1,776,000  1,486,000  1,313,000     69%


 Domains:     30,000     28,000     26,000     22,000     21,000     43%


 PingReply:  576,000*       N/A    464,000    421,000
  %ofHosts:      26%*                  26%        28%
[* = estimated by pinging a random sample of 5% of all hosts]


 Nets:
  Class A:        74         69         67         58         54     37%
  Class B:      4043       3849       3728       3409       3206     26%
  Class C:     16422      12615       9972       6255       4998    228%
 Total:        20539      16533      13767       9722       8258    149%




                Host Distribution by Top-Level Domain Name
   [see pub/zone/iso-country-codes on ftp.nisc.sri.com to decode names]


     605402 edu    31746 no      4408 dk        510 sk        72 lv
     567686 com    17084 it      3623 br        502 tr        47 eg
     129134 gov    15442 at      3601 pt        467 hr        31 ua
     113930 uk     12608 net     3568 mx        435 my        21 bg
     103507 mil    11784 es      2934 cs        378 ve        17 li
      98940 de     10951 za      2773 sg        342 ee        11 tn
      89672 au      8984 kr      2424 hu        306 lu         5 fj
      86312 ca      7970 tw      2095 cz        276 th         5 cy
      50544 org     6631 il      1888 is        235 int        4 aq
      42769 jp      6541 us      1627 ie        215 cr         3 fi
      41877 nl      5773 nz      1372 cl        148 ec         3 ar
      38277 ch      5721 hk      1297 su        138 kw         2 yu
      38109 se      4896 be       848 gr        138 in
      33205 fr      4758 pl       628 si         80 ro




                                 Top 50 Host Names


     934 venus     648 mercury       558 orion     496 gateway   469 pc21
     898 cisco     619 pc10          553 pc13      491 mac10     468 hermes
     864 pluto     612 pc2           537 pc14      484 pc20      462 merlin
     829 gw        610 mac1          532 router    480 pc17      459 pc22
     776 mars      607 charon        530 neptune   479 pc18      455 pc23
     760 zeus      599 pc11          520 newton    478 mac3      451 pc25
     747 jupiter   588 iris          519 pc15      476 thor      449 hobbes
     736 ns        576 pc12          514 alpha     474 pc19      441 mac12
     728 pc1       570 eagle         511 pc3       473 apollo    440 pc24
     713 saturn    562 mac2          499 pc16      472 mac       436 pc4