RIS Statistics Report (20081103-20081110)
This report was generated at Mon Nov 10 00:15:02 UTC 2008. 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 rrc13 rrc14 rrc15 rrc16
APNIC 68237 67658 59248 0 64498 61329 61130 60423 59163 58985 59754 61293 59476 60801 59460 63569
ARIN 98020 95797 91935 0 92775 92496 91860 94221 91406 91625 92080 92938 92093 93873 93056 92219
LACNIC 23236 20468 20332 0 20560 20517 20517 20494 20443 20389 20483 20410 20301 20436 23130 20227
RIPE NCC 104488 61102 94873 0 60016 59994 61855 58275 59563 60643 60083 60680 61324 59169 58894 58681
AfriNIC 1604 1588 1594 0 1572 1591 1598 1597 1590 1586 1594 1562 1587 1596 1595 1566
Old 45640 43676 42072 0 42851 42841 42786 42507 41819 41827 41998 42519 42246 43042 42799 42596
IANA 38 0 38 0 0 0 0 0 0 0 0 0 0 0 0 0
RFC1918 487 0 33 0 1 1 434 0 0 2 0 0 1 0 15 0
OTHER 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
TOTAL 341750 290289 310125 0 282273 278769 280180 277517 273984 275057 275992 279402 277028 278917 278949 278858
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 rrc13 rrc14 rrc15 rrc16
ARIN 12953 12930 12848 0 12923 12906 12884 12833 12849 12836 12858 12928 12902 12924 12899 12790
APNIC 3563 3555 3496 0 3521 3522 3504 3493 3491 3488 3504 3533 3490 3537 3490 3490
RIPE NCC 12403 12378 12363 0 12366 12357 12360 12302 12360 12358 12366 12369 12347 12355 12325 12324
LACNIC 1055 1052 1042 0 1053 1051 1046 1043 1041 1040 1044 1052 1049 1052 1051 1037
AFRINIC 229 228 228 0 229 228 228 226 227 227 228 228 225 228 227 223
IANA 1 1 1 0 0 0 1 0 1 0 0 1 0 0 0 0
Private 127 72 79 0 62 33 53 23 49 80 88 53 64 41 33 25
Others 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Total 30331 30216 30057 0 30154 30097 30076 29920 30018 30029 30088 30164 30077 30137 30025 29889
o Number of single-homed ASes.
RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc13 rrc14 rrc15 rrc16
ARIN 3898 4562 4433 0 4582 5275 5282 7691 5395 5029 4617 4386 4913 4529 5636 7745
APNIC 916 1092 1171 0 1155 1252 1264 1625 1315 1277 1122 1114 1323 1192 1370 1824
RIPE NCC 3780 4475 4304 0 4371 5002 4572 7653 4760 4574 4572 4438 4922 4855 5845 7213
LACNIC 345 426 426 0 415 436 432 516 432 437 418 408 442 418 426 541
AFRINIC 81 86 87 0 88 94 90 103 88 94 91 88 94 94 98 109
IANA 1 1 1 0 0 0 1 0 1 0 0 1 0 0 0 0
Private 95 50 62 0 48 18 40 13 32 63 69 35 45 27 19 20
Others 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Total 9116 10692 10484 0 10659 12077 11681 17601 12023 11474 10889 10470 11739 11115 13394 17452
o Number of multi-homed ASes.
RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc13 rrc14 rrc15 rrc16
ARIN 9055 8368 8415 0 8341 7631 7602 5142 7454 7807 8241 8542 7989 8395 7263 5045
APNIC 2647 2463 2325 0 2366 2270 2240 1868 2176 2211 2382 2419 2167 2345 2120 1666
RIPE NCC 8623 7903 8059 0 7995 7355 7788 4649 7600 7784 7794 7931 7425 7500 6480 5111
LACNIC 710 626 616 0 638 615 614 527 609 603 626 644 607 634 625 496
AFRINIC 148 142 141 0 141 134 138 123 139 133 137 140 131 134 129 114
IANA 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Private 32 22 17 0 14 15 13 10 17 17 19 18 19 14 14 5
Others 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Total 21215 19524 19573 0 19495 18020 18395 12319 17995 18555 19199 19694 18338 19022 16631 12437
IANA : AS65535
Number of 4-byte ASes: 14.
Distribution of AS number wrt Leaf, Transit.
RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc13 rrc14 rrc15 rrc16
Leaf 25305 25408 25318 0 25395 25424 25369 25682 25351 25383 25384 25362 25430 25381 25480 25735
Transit 4893 4683 4601 0 4641 4552 4586 4137 4530 4512 4570 4672 4523 4633 4425 4057
Transit-only 152 141 148 0 130 132 131 107 143 140 141 143 129 136 126 104
Total 30350 30232 30067 0 30166 30108 30086 29926 30024 30035 30095 30177 30082 30150 30031 29896
o Average ASPATH length.
RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc13 rrc14 rrc15 rrc16
Avg 5.73 6.04 5.39 0.00 5.32 6.03 5.65 5.35 5.64 5.96 5.34 5.24 5.77 5.13 6.53 4.93
Std 2.26 2.31 2.26 0.00 2.15 2.18 2.30 2.12 2.34 2.31 2.27 2.14 2.13 2.24 2.29 1.61
o List of martians appearing throughout the week.
Prefix Origin AS
10.20.30.0/30 8342
10.100.100.100/30 6067
10.193.3.0/24 34245
10.193.12.128/28 34245
10.193.13.112/28 34245
10.193.14.32/27 34245
10.193.14.96/27 34245
10.193.14.192/28 34245
10.193.14.224/28 34245
10.201.64.0/29 34245
10.205.64.0/24 34245
10.205.65.0/24 34245
10.205.252.0/24 34245
10.216.0.0/15 34245
10.216.2.0/23 34245
10.216.4.0/23 34245
10.216.6.0/23 34245
10.216.8.0/23 34245
10.216.10.0/23 34245
172.16.1.0/30 47920
172.16.1.4/30 47920
172.17.0.5/32 8468
172.25.4.0/24 31501
o List of hot-spots during the week.
Prefix Origin AS Number of updates
189.70.0.0/19 7738 5871277
221.134.222.0/24 9583 811907
64.162.116.0/24 5033 597711
210.214.151.0/24 9583 590780
77.95.144.0/22 29282 578524
221.135.80.0/24 9583 500295
195.47.233.0/24 30850 391206
8.192.154.0/24 14106 258023
65.44.76.0/24 14106 144165
221.128.192.0/18 18231 109831
Total number of RIS BGP peering sessions: 647