Internet Domain Survey

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

Network Information Systems Center                             October 1993
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-October 1993 are listed.  For more information see RFC 1296;
 for more data see the pub/zone directory on ftp.nisc.sri.com.
                                                          -- Mark Lottor




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


          October 93     Jul 93     Apr 93     Jan 93     Oct 92  Change (year)
 ==============================================================================
 Hosts:    2,056,000  1,776,000  1,486,000  1,313,000  1,136,000     81%


 Domains:     28,000     26,000     22,000     21,000     18,100     55%


 PingReply:      N/A    464,000    421,000
  %ofHosts:                 26%        28%


 Nets:
  Class A:        69         67         58         54         52     33%
  Class B:      3849       3728       3409       3206       2985     29%
  Class C:     12615       9972       6255       4998       4468    182%
 Total:        16533      13767       9722       8258       7505    120%




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


    636919 edu    29292 fi      3961 cz        737 my        41 cr
    516880 com    28322 no      3804 pl        692 hr        39 lv
    119454 gov    20540 net     3300 br        657 sk        21 bg
    103324 de     14701 it      3232 pt        514 tr        18 ro
    100609 uk     13924 at      3130 cs        509 si        17 li
     97840 au     11866 es      2650 us        412 ee        16 gb
     96273 mil     7649 hk      2444 cl        263 lu         6 fj
     79837 ca      7647 dk      2384 sg        213 ve         4 cy
     47826 fr      7450 za      2213 hu        197 int        4 aq
     43882 org     7359 kr      2131 ie        168 ua         2 ar
     43697 jp      7189 tw      1808 gr        152 pr         1 yu
     39940 nl      6265 be      1602 mx        136 in
     37767 se      5937 il      1499 is        125 ec
     31488 ch      4342 nz      1182 su         93 th




                              Top 50 Host Names


     889 venus     650 mac1      507 newton    448 pc5       421 mac15
     817 pluto     611 mercury   507 neptune   448 mac11     421 fred
     811 cisco     611 iris      506 mac3      447 mac13     420 mac16
     775 pc1       603 charon    506 mac10     447 gateway   415 pc10
     763 mars      590 mac2      485 alpha     446 mac4      415 mac5
     731 gw        583 pc3       471 apollo    446 hermes    414 sirius
     729 zeus      551 ns        460 mac12     440 mac14     405 phoenix
     720 jupiter   545 orion     457 thor      437 titan     403 calvin
     684 pc2       531 eagle     457 gauss     428 hobbes    402 pc6
     677 saturn    507 pc4       449 router    426 merlin    398 mac18