/nsfnet/statistics/history.hosts 1 Sept 1997 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, former 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 7/95 6,642,000 7/96 12,881,000 7/97 19,540,000 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 7/95 120,000 7/96 488,000 7/97 1,301,000 Host Distribution by Top-Level Domain Name 4501039 com 17055 si 417 to 62 tz 6 cg 2942714 edu 14153 is 417 gl 62 dm 6 cf 2164815 net 12794 th 390 pa 59 nc 5 pn 955688 jp 10959 sk 350 na 58 ba 5 je 878215 uk 10861 id 349 jm 57 gy 5 gq 875631 de 10513 ua 345 qa 54 bs 4 ly 825048 us 6905 co 332 am 51 mv 3 ws 707611 au 6705 hr 298 ge 48 bf 3 vn 690316 ca 6566 ee 293 sa 44 mz 3 mm 542295 mil 6510 pe 275 sn 41 mg 3 mh 434654 org 5998 ro 275 gh 40 gb 2 ye 418576 gov 5515 bg 272 zw 35 vi 2 tm 341560 nl 5184 lv 258 mc 35 sc 2 sd 335956 fi 4794 in 255 zm 34 ne 2 sb 292096 fr 4679 ve 253 fo 32 vu 2 pw 284478 se 4309 ph 248 ci 31 dz 2 gn 211966 it 4259 cr 240 sz 29 tc 2 as 209034 no 3854 lu 239 py 29 ml 1 vc 155678 nz 3555 kw 238 bw 27 gf 1 tp 148028 ch 2885 yu 236 bn 26 ug 1 ms 137008 dk 2761 lt 220 mo 25 do 1 ir 132370 kr 1994 ae 211 mu 24 bz 1 gd 121823 es 1973 cy 200 sv 20 bb 1 er 117475 za 1894 eg 170 jo 19 im 1 ck 87408 at 1648 bm 168 md 18 ao 1 bt 86117 be 1136 kz 165 np 17 mn 0 tv 81104 ru 1128 lb 165 ag 16 ls 0 sy 68685 br 1078 ec 160 nf 16 cv 0 sr 61140 il 1024 uy 155 ad 15 tn 0 sl 60674 sg 959 pk 153 uz 13 gg 0 re 49104 cz 896 bh 147 pf 13 bj 0 om 48660 hk 888 ma 138 gi 12 ky 0 mw 43384 pl 882 gt 127 gp 12 kn 0 mr 40706 tw 785 mt 114 pr 10 va 0 mp 40533 my 743 ni 108 kg 10 gw 0 lr 38363 su 734 sm 107 al 9 dj 0 la 35238 mx 724 int 101 aw 8 zr 0 ki 33818 hu 611 lk 91 gu 8 bi 0 iq 33031 ie 590 hn 84 an 7 vg 0 ht 25594 cn 538 bo 81 az 7 nu 0 gm 22963 tr 479 li 79 pg 7 kh 0 fm 19711 gr 457 ke 75 cm 6 tg 0 fk 19168 cl 451 by 74 lc 6 rw 0 fj 18985 ar 429 mk 71 ai 6 ng 0 et 18147 pt 423 tt 67 cu 6 mq 0 aq