------- Forwarded Message Date: Thu, 21 Jan 93 13:35:54 PST From: SRI NISC <nisc@nisc.sri.com> Sender: ietf-request@IETF.CNRI.Reston.VA.US To: ietf@CNRI.Reston.VA.US cc: nisc@nisc.sri.com Subject: Internet Domain Survey Network Information Systems Center January 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 mid-January 1993 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 on Santa Cruz; see technical report UCSC-CRL-92-34 on host ftp.cse.ucsc.edu. The statistics below were generated by running the collected host data through a number of utility programs. -- Mark Lottor January 1993 Oct 92 Jul 92 Apr 92 Jan 92 Change (Jan-Jan) ============================================================================== Hosts: 1,313,000 1,136,000 992,000 890,000 727,000 80.6% Domains: 21,000 18,100 16,300 20,000 17,000 23.5% Number of Networks (based on DNS IP addresses) January 1993 Oct 92 Jul 92 Apr 92 Jan 92 Change (Jul-Jan) ============================================================================== Class A: 54 52 60 -9.0% Class B: 3206 2985 2714 18.1% Class C: 4998 4468 3795 31.7% Total: 8258 7505 6569 25.7% Host Distribution by Top-Level Domain Name and Percent Change since Jan 92 410940 edu 69% 23581 ch 86% 3542 kr 136% 782 is * 29 cy * 347486 com 92% 23197 jp 171% 3451 hk 684% 692 us 475% 17 my * 79772 gov 72% 20109 no 97% 2418 be 588% 610 hu * 13 tn -52% 67111 de 116% 16356 fi 36% 2053 nz 84% 349 cl * 11 yu * 62327 mil 127% 9986 net 26% 1912 cs * 121 lu * 8 lv * 61429 au 94% 9052 at 172% 1910 br 536% 112 ve * 5 th * 58431 uk 208% 7834 it 188% 1882 pt 141% 105 ar * 5 gb * 52755 ca 95% 5911 es 256% 1663 pl * 89 ee * 4 aq * 31490 org 64% 5459 dk 204% 1365 sg 182% 79 in * 3 cr * 26014 fr 100% 4356 za 368% 1330 ie 259% 63 su -67% 1 si * 25991 se 40% 4143 il 104% 1239 mx 339% 58 int n/a 1 bg * 25665 nl 101% 4021 tw 398% 860 gr 160% 45 ec * [* = over 1000%] Top 50 Host Names 633 venus 475 mac2 380 mac4 326 mac11 311 sirius 595 cisco 452 pc2 379 eagle 326 hermes 311 mac9 590 pluto 443 mercury 358 mac5 324 mac7 311 calvin 562 mars 443 iris 358 gauss 323 merlin 302 mac14 527 pc1 435 charon 354 mac10 321 mac12 301 mac15 522 zeus 411 mac3 338 mac6 320 thor 300 athena 519 gw 409 orion 338 hobbes 319 mac8 292 mac16 496 jupiter 385 pc3 335 pc4 319 mac13 289 phoenix 494 mac1 382 newton 332 apollo 318 alpha 285 pc5 484 saturn 381 neptune 330 fred 313 titan 284 gateway Frequently Asked Questions about the Domain Survey What'da all those domain names stand for? See pub/zone/iso-country-codes on ftp.nisc.sri.com. Why does the domain count go up and down? I don't know. Do you want to count them? Are all those hosts really on the Internet? You would have to ping them to find out. If they each took 100 milliseconds to reply to a ping, you could find out in only 37 hours. How many users are on the Internet? Some people estimate around 10 per host (13 million people). If all of them were appropriately registered, the birthday-daemon would have to deliver 35,616 email messages each day. Where can I get more information? See the pub/zone directory on ftp.nisc.sri.com. ------- End of Forwarded Message