/nsfnet/statistics/history.hosts 13 February 1995 Mark Lottor, formerly at SRI but now at Network Wizards, uses the ZONE program to determine the approximate number of Internet hosts, Domain Name System domains, and hosts within domains. Detailed information about the ZONE program and how it is used is available in RFC 1296. More detailed data is available via Anonymous FTP to ftp.nw.com in the zone directory, or at http://www.nw.com. Tony Rutkowski, Executive Director of the Internet Society, says that a commonly used method of estimating the total number of Internet users is to multiply the number of host computers by 10. For example, in October 1993, the ZONE program identified 2 million hosts, which is equivalent to about 20 million users. Date Hosts 08/81 213 08/83 562 10/85 1,961 12/87 28,174 10/89 159,000 10/90 313,000 10/91 617,000 10/92 1,136,000 10/93 2,056,000 10/94 3,864,000 1/95 4,852,000 Date Domains 07/88 900 07/89 3,900 10/90 9,300 07/91 16,000 10/92 18,100 10/93 28,000 10/94 56,000 1/95 71,000 Host Distribution by Top-Level Domain Name 1316966 com 30697 it 4000 gr 569 cn 27 li 1133502 edu 29705 at 3054 cl 529 ve 27 gb 241191 uk 28446 es 2643 tr 474 bm 19 zw 209345 gov 27040 za 1849 ru 359 in 19 am 207717 de 25935 dk 1773 si 334 ph 18 ir 186722 ca 18699 be 1728 th 325 ec 17 pa 175961 mil 18049 kr 1606 my 220 kw 12 mo 161166 au 14618 tw 1414 sk 177 id 10 dz 154578 org 13251 il 1396 ee 172 uy 7 kz 150299 net 12437 hk 1262 ar 171 pe 5 fj 96632 jp 11580 cz 1127 co 161 eg 4 aq 93041 fr 11477 pl 1090 hr 144 bg 3 md 89227 nl 8506 hu 904 int 121 lt 3 gl 77594 se 6656 mx 800 br 88 cy 3 fo 71372 fi 6219 ie 798 cr 82 pr 2 sa 51512 ch 5999 pt 614 lu 76 jm 2 gn 49725 no 5252 sg 612 lv 69 zm 2 by 37615 us 4963 su 597 ro 57 tn 1 az 31215 nz 4735 is 574 ua 49 ni