/nsfnet/statistics/history.netcount History of NSFNET Growth by Networks 01 June 1994 Total Prefix Length Total Date Nets= */8 + */16 + */24 +/Other Non-US ----- ----- ----- ----- ----- ------ ------ 88/07 217 1 128 37 0 9 88/08 241 2 133 40 0 9 88/09 292 3 139 45 0 9 88/10 305 5 175 52 0 14 88/11 334 5 195 59 0 33 88/12 346 5 205 64 0 33 89/01 384 6 212 70 0 34 89/02 410 6 234 82 0 35 89/03 467 6 257 90 0 38 89/04 516 6 287 108 0 61 89/05 564 6 321 128 0 95 89/06 603 8 340 143 0 95 89/07 650 9 351 153 0 99 89/08 745 9 408 181 0 137 89/09 809 9 443 198 0 153 89/10 837 9 460 205 0 162 89/11 897 9 492 236 0 191 89/12 927 9 512 245 0 202 90/01 1233 12 758 417 0 250 90/02 1290 12 775 439 0 257 90/03 1356 12 803 466 0 284 90/04 1525 12 852 498 0 322 90/05 1580 12 880 519 0 344 90/06 1639 13 907 549 0 359 90/07 1727 13 985 586 0 436 90/08 1894 13 1059 654 0 468 90/09 1988 13 1101 687 0 496 90/10 2063 13 1146 727 0 542 90/11 2125 13 1174 777 0 583 90/12 2190 13 1201 815 0 621 91/01 2338 13 1266 890 0 693 91/02 2417 13 1315 922 0 721 91/03 2501 13 1362 959 0 762 91/04 2622 14 1410 1029 0 804 91/05 2763 14 1492 1083 0 882 91/06 2982 15 1606 1176 0 989 91/07 3086 15 1663 1232 0 1012 91/08 3258 15 1747 1308 0 1066 91/09 3389 16 1805 1378 0 1128 91/10 3556 16 1864 1485 0 1214 91/11 3751 16 1934 1598 0 1302 91/12 4305 16 2105 1970 0 1450 92/01 4526 16 2199 2107 0 1496 92/02 4740 16 2335 2224 0 1595 92/03 4976 17 2420 2328 0 1697 92/04 5291 18 2523 2533 0 1806 92/05 5515 18 2580 2711 0 1911 92/06 5739 18 2646 2861 0 2002 92/07 6031 19 2741 3052 0 2133 92/08 6385 19 2829 3314 0 2273 92/09 6640 19 2889 3519 0 2336 92/10 7354 20 3043 4037 0 2566 92/11 7854 20 3111 4410 0 2832 92/12 8561 25 3280 5256 0 3195 93/01 9117 25 3340 5752 0 3413 93/02 9604 24 3413 6167 0 3708 93/03 10498 23 3494 6981 0 4103 93/04 11252 23 3567 7662 0 4462 93/05 12349 23 3659 8667 0 4951 93/06 13170 24 3726 9420 0 5461 93/07 14121 26 3818 10277 0 5827 93/08 15160 26 3890 11244 0 6265 93/09 16696 27 3993 12676 0 7071 93/10 17979 27 4080 13872 0 7539 93/11 19664 26 4155 15483 0 8106 93/12 21430 27 4244 17159 0 9042 94/01 23494 28 4349 19117 0 9869 94/02 25706 28 4450 21228 0 10924 94/03 28578 28 4572 23930 48 11966 94/04 30626 29 4722 25509 366 12724 94/05 32370 29 4817 27064 460 13541 NOTES: This report is a listing by month of the number of networks configured for announcement on the NSFNET infrastructure. It includes a breakdown by IP class and the number of non-US nets. Network IP addresses have historically been grouped into three classes: A for IPs 1-126, B for 128-191, and C for 192-254. With the advent of CIDR blocks in March 1994, the classes have been re-labelled according to the corresponding prefix length. The "Other" column is used for networks using prefixes other 8, 16, or 24. Prior to December 1992, the sum of the values in the Prefix Length columns will not usually add to the total. The difference represents deleted networks for which we no longer have enough information to determine their class. Counts exclude networks that are configured for the ANSNet backbone but are not routed by NSFNET.