RIS Statistics Report (20050131-20050207) This report was generated at Mon Feb 7 00:15:01 UTC 2005. It analyses the BGP Routing Tables which are collected by RIS Remote Collectors at different locations around the world. Check http://www.ris.ripe.net/weekly-report/ for more info. o Prefix Distribution RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 APNIC 32671 32456 29231 220 29595 29500 29582 32534 29454 29157 16688 29228 0 ARIN 63000 61976 61969 997 62518 61676 62352 62049 61988 61030 24254 61989 0 LACNIC 6783 6765 6746 1308 6766 6762 6767 6766 6746 6730 3955 6746 0 RIPE NCC 27344 25528 25835 9414 26858 25217 25870 25245 26206 25294 15014 25964 0 OLD 33592 32916 32165 2146 33083 32601 32636 32719 32392 31810 12458 32211 1 IANA 3292 3199 3048 729 3166 3075 3049 3164 3062 3026 1676 3052 1 RFC1918 11 4 0 0 7 4 0 0 0 0 0 1 0 OTHER 0 0 0 0 0 0 0 0 0 0 0 0 0 TOTAL 166693 162844 158994 14814 161993 158835 160256 162477 159848 157047 74045 159191 2 AS number distributions wrt RIR and single-homed/multi-homed. o ASes per RIR region RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 ARIN 10659 10638 10548 421 10601 10602 10595 10534 10530 10524 5651 10542 2 APNIC 2180 2174 2160 28 2177 2164 2164 2151 2155 2149 1450 2157 0 RIPE NCC 6324 6294 6294 3193 6310 6288 6296 6265 6288 6290 4502 6294 0 LACNIC 99 99 93 11 98 98 97 97 94 94 62 93 0 IANA 1 0 1 0 0 0 1 1 1 1 1 1 0 Private 33 24 14 3 23 14 16 14 19 10 12 18 0 Others 1 0 1 0 0 0 1 0 1 0 0 1 0 Total 19297 19229 19111 3656 19209 19166 19170 19062 19088 19068 11678 19106 2 o Number of single-homed ASes. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 ARIN 3054 3308 3945 296 3273 4899 4450 6154 3755 4497 2298 4286 2 APNIC 592 657 791 22 654 941 881 1087 759 927 634 854 0 RIPE NCC 1711 2102 2287 2103 1875 2605 2334 3461 2097 2471 1815 2309 0 LACNIC 45 48 51 10 47 59 56 61 50 55 33 52 0 IANA 1 0 1 0 0 0 1 1 1 1 1 1 0 Private 23 16 6 0 14 7 8 10 12 6 9 11 0 Others 1 0 1 0 0 0 1 0 1 0 0 1 0 Total 5427 6131 7082 2431 5863 8511 7731 10774 6675 7957 4790 7514 2 o Number of multi-homed ASes. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 ARIN 7605 7330 6603 125 7328 5703 6145 4380 6775 6027 3353 6256 0 APNIC 1588 1517 1369 6 1523 1223 1283 1064 1396 1222 816 1303 0 RIPE NCC 4613 4192 4007 1090 4435 3683 3962 2804 4191 3819 2687 3985 0 LACNIC 54 51 42 1 51 39 41 36 44 39 29 41 0 IANA 0 0 0 0 0 0 0 0 0 0 0 0 0 Private 10 8 8 3 9 7 8 4 7 4 3 7 0 Others 0 0 0 0 0 0 0 0 0 0 0 0 0 Total 13870 13098 12029 1225 13346 10655 11439 8288 12413 11111 6888 11592 0 IANA : AS65535 Others: AS65535 Distribution of AS number wrt Leaf, Transit. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 Leaf 15943 16011 15985 2862 15959 16112 16017 16285 16009 16033 9220 15986 1 Transit 3229 3096 3007 675 3128 2956 3038 2689 2971 2933 1953 3009 1 Transit-only 125 122 119 119 122 98 115 88 108 102 505 111 0 Total 19297 19229 19111 3656 19209 19166 19170 19062 19088 19068 11678 19106 2 o Average ASPATH length. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 Avg 6.17 6.00 5.91 4.94 6.17 6.20 6.11 6.14 6.17 5.86 6.41 6.31 1.00 Std 2.83 2.70 2.90 2.56 2.89 2.85 2.98 2.58 2.64 2.38 2.76 3.02 1.00 o List of hot-spots during the week. Prefix Origin AS Number of updates 202.64.49.0/24 2706 477034 202.64.40.0/24 2706 466866 219.64.224.0/21 4755 239807 202.64.159.0/24 2706 231845 216.243.234.0/23 10970 222434 193.73.62.0/24 6730 218823 219.64.224.0/23 4755 186145 219.64.226.0/23 4755 176065 209.114.254.0/24 14359 168653 194.44.165.0/24 3255 148013 Total number of RIS BGP peering sessions: 457