RIS Statistics Report (20090427-20090504)
This report was generated at Mon May 4 00:15:01 UTC 2009. 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 124175 74775 64605 0 75147 66577 65341 64582 64497 64358 64971 65706 118332 0 68753 69482
ARIN 106881 98081 93056 0 98295 93825 93913 95369 92863 92777 93666 93576 103980 0 94337 93372
LACNIC 28128 22194 22248 0 23248 22326 22433 22046 22259 22268 22292 22057 25155 0 25365 21979
RIPE NCC 365489 64377 86125 0 69929 74997 74380 62594 64764 67085 65004 65516 323718 0 64177 63658
AfriNIC 3512 3084 3142 0 3288 3101 3108 3089 3109 3108 3117 3122 3482 0 3116 3074
Old 116203 44036 41956 0 43915 42904 42905 42743 41991 41778 41948 41938 113422 0 44041 42669
IANA 35645 33 32 0 32 31 31 30 31 32 32 32 35644 0 31 2
RFC1918 15283 1 14 0 9 3 1 0 1 1 1 9 15252 0 21 0
OTHER 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
TOTAL 795316 306581 311178 0 313863 303764 302112 290453 289515 291407 291031 291956 738985 0 299841 294236
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 13393 13333 13301 0 13299 13359 13341 13175 13284 13300 13319 13292 13343 0 13334 13167
APNIC 3759 3743 3697 0 3714 3722 3707 3674 3697 3693 3713 3704 3701 0 3680 3681
RIPE NCC 13279 13223 13234 0 13203 13241 13232 13120 13228 13232 13244 13234 13234 0 13203 13156
LACNIC 1136 1126 1121 0 1125 1128 1126 1115 1118 1121 1123 1120 1129 0 1134 1113
AFRINIC 258 256 257 0 254 258 258 254 256 256 257 257 257 0 253 249
IANA 2 2 2 0 2 2 2 0 2 2 2 2 2 0 1 2
Private 104 52 54 0 45 38 44 19 38 38 42 42 49 0 34 26
Others 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Total 31932 31736 31667 0 31643 31749 31711 31358 31624 31643 31701 31652 31716 0 31640 31395
o Number of single-homed ASes.
RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc13 rrc14 rrc15 rrc16
ARIN 3117 4051 3724 0 4495 4072 4095 6181 4305 4366 3667 4014 3840 0 5023 6706
APNIC 795 1026 975 0 1164 963 999 1473 1121 1096 945 1020 1019 0 1282 1610
RIPE NCC 3014 4064 3536 0 4357 3780 3637 6145 3940 3851 3559 3832 3607 0 5225 6960
LACNIC 285 380 333 0 385 321 328 418 350 336 318 334 338 0 348 500
AFRINIC 79 100 88 0 96 92 87 104 90 86 85 91 90 0 93 118
IANA 1 1 1 0 1 2 1 0 2 1 2 1 1 0 1 2
Private 72 30 36 0 33 21 25 10 23 18 22 26 27 0 19 18
Others 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Total 7363 9652 8693 0 10531 9251 9172 14331 9831 9754 8598 9318 8922 0 11991 15914
o Number of multi-homed ASes.
RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc13 rrc14 rrc15 rrc16
ARIN 10276 9282 9577 0 8804 9287 9246 6994 8979 8934 9652 9278 9503 0 8311 6461
APNIC 2964 2717 2722 0 2550 2759 2708 2201 2576 2597 2768 2684 2682 0 2398 2071
RIPE NCC 10265 9159 9698 0 8846 9461 9595 6975 9288 9381 9685 9402 9627 0 7978 6196
LACNIC 851 746 788 0 740 807 798 697 768 785 805 786 791 0 786 613
AFRINIC 179 156 169 0 158 166 171 150 166 170 172 166 167 0 160 131
IANA 1 1 1 0 1 0 1 0 0 1 0 1 1 0 0 0
Private 32 22 18 0 12 17 19 9 15 20 20 16 22 0 15 8
Others 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Total 24569 22084 22974 0 21112 22498 22539 17027 21793 21889 23103 22334 22794 0 19649 15481
IANA : AS65535 AS64001
Number of 4-byte ASes: 33.
Distribution of AS number wrt Leaf, Transit.
RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc13 rrc14 rrc15 rrc16
Leaf 18652 21913 19233 0 23649 18700 18647 19514 19474 18646 18616 20078 19466 0 18816 25255
Transit 12953 9575 12099 0 7790 12724 12734 11427 11830 12651 12745 11272 11937 0 12502 5981
Transit-only 350 263 352 0 213 340 347 422 333 357 357 317 322 0 331 165
Total 31955 31751 31684 0 31652 31764 31728 31363 31637 31654 31718 31667 31725 0 31649 31401
o Average ASPATH length.
RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc13 rrc14 rrc15 rrc16
Avg 6.06 6.19 5.51 0.00 5.21 6.23 5.82 5.52 5.66 6.02 5.58 5.64 6.50 0.00 7.30 4.97
Std 2.34 2.29 2.24 0.00 2.09 2.19 2.26 2.13 2.34 2.27 2.34 2.27 2.41 0.00 2.47 1.60
o List of martians appearing throughout the week.
Prefix Origin AS
10.0.0.0/8 6067
10.2.0.0/16 44640
10.72.0.0/16 35807
10.80.0.0/13 35807
10.98.64.0/18 44640
10.100.100.100/30 6067
172.17.1.41/32 36947
172.19.239.8/32 8492
172.19.239.9/32 8492
172.19.239.10/32 8492
172.19.239.11/32 8492
172.19.239.12/32 8492
172.19.239.13/32 8492
172.19.239.14/32 8492
172.19.239.15/32 8492
172.19.239.16/30 8492
172.19.240.0/20 8492
172.21.0.0/16 36947
172.22.0.0/16 36947
172.23.0.0/16 36947
172.28.28.0/24 8342
192.0.2.0/24 27065
192.168.0.0/24 6730
192.168.1.1/32 12731
192.168.2.102/32 36947
192.168.20.0/24 6730
192.168.22.0/24 35807
192.168.35.8/32 36947
192.168.64.221/32 3741
192.168.199.196/30 13237
192.168.201.8/32 36947
192.168.201.23/32 36947
o List of hot-spots during the week.
Prefix Origin AS Number of updates
195.182.54.0/24 47299 727874
41.204.2.0/24 32398 661974
217.69.180.0/24 29357 353087
92.54.220.0/24 35805 302085
92.54.202.0/24 35805 300332
194.110.240.0/24 42778 254658
193.150.172.0/23 13153 221945
193.93.164.0/22 29229 217473
195.39.237.0/24 28953 202796
91.189.63.0/24 42199 118901
Total number of RIS BGP peering sessions: 639