RIS Statistics Report (20090223-20090302)
This report was generated at Mon Mar 2 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 75859 73745 64005 0 68128 66138 65277 62965 63765 63830 64599 64980 70826 64463 68693 67778
ARIN 101111 97116 91599 0 92612 92330 92394 94530 91814 91722 93031 92562 94508 92193 93554 91854
LACNIC 26151 21875 21632 0 21726 21769 21848 21732 21715 21726 21863 21762 22816 21640 24915 21581
RIPE NCC 282332 62118 86361 0 63975 72831 61973 60815 61820 64902 63155 64161 239755 61659 62248 61720
AfriNIC 3017 2769 2880 0 2847 2851 2867 2857 2871 2859 2904 2864 2967 2868 2883 2851
Old 45280 42747 41407 0 42149 42212 42012 41784 41207 41316 41484 41507 42912 41373 43305 42173
IANA 32 0 0 0 0 0 0 0 0 0 0 32 0 0 0 0
RFC1918 4070 0 6 0 4 3 1 0 1 2 3 3 4048 2 12 0
OTHER 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
TOTAL 537852 300370 307890 0 291441 298134 286372 284683 283193 286357 287039 287871 477832 284198 295610 287957
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 13344 13197 13140 0 13167 13205 13188 13066 13136 13143 13166 13112 13256 13157 13190 13035
APNIC 3684 3657 3604 0 3637 3628 3614 3598 3607 3597 3620 3612 3609 3621 3592 3597
RIPE NCC 13102 12989 12988 0 12968 12999 13001 12938 13001 12991 13019 12991 13024 12990 12978 12926
LACNIC 1114 1102 1091 0 1097 1099 1098 1094 1092 1091 1095 1090 1104 1092 1103 1084
AFRINIC 253 251 251 0 248 250 251 247 249 250 252 250 250 251 248 246
IANA 2 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0
Private 107 38 49 0 45 35 28 18 33 42 41 31 34 25 34 18
Others 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Total 31608 31236 31126 0 31165 31217 31181 30962 31119 31116 31195 31088 31278 31138 31146 30908
o Number of single-homed ASes.
RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc13 rrc14 rrc15 rrc16
ARIN 3574 4281 4316 0 4599 4756 4564 6499 4883 4994 4291 4947 4820 4457 5520 7000
APNIC 831 1021 1042 0 1153 1012 1059 1480 1175 1143 992 1149 1191 1015 1219 1620
RIPE NCC 3543 4430 4219 0 4459 4492 4296 6687 4554 4406 4250 4589 4717 4607 5826 7013
LACNIC 293 377 381 0 395 359 366 457 392 390 351 406 412 371 379 513
AFRINIC 79 96 91 0 95 96 91 109 94 97 94 94 98 92 102 117
IANA 2 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0
Private 85 31 40 0 38 27 20 14 27 34 34 21 21 18 27 15
Others 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Total 8408 10237 10091 0 10741 10742 10396 15246 11125 11065 10013 11207 11259 10561 13073 16279
o Number of multi-homed ASes.
RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc13 rrc14 rrc15 rrc16
ARIN 9770 8916 8824 0 8568 8449 8624 6567 8253 8149 8875 8165 8436 8700 7670 6035
APNIC 2853 2636 2562 0 2484 2616 2555 2118 2432 2454 2628 2463 2418 2606 2373 1977
RIPE NCC 9559 8559 8769 0 8509 8507 8705 6251 8447 8585 8769 8402 8307 8383 7152 5913
LACNIC 821 725 710 0 702 740 732 637 700 701 744 684 692 721 724 571
AFRINIC 174 155 160 0 153 154 160 138 155 153 158 156 152 159 146 129
IANA 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Private 22 7 9 0 7 8 8 4 6 8 7 10 13 7 7 3
Others 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Total 23200 20999 21035 0 20424 20475 20785 15716 19994 20051 21182 19881 20019 20577 18073 14629
IANA : AS64444 AS65535
Number of 4-byte ASes: 18.
Distribution of AS number wrt Leaf, Transit.
RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc13 rrc14 rrc15 rrc16
Leaf 21665 22895 22094 0 24473 21647 21496 21546 21751 21497 21472 24080 23869 21502 21607 25581
Transit 9689 8130 8781 0 6523 9325 9426 9147 9101 9357 9446 6811 7229 9365 9300 5196
Transit-only 270 220 258 0 178 255 268 274 271 267 284 202 183 281 247 135
Total 31624 31245 31133 0 31174 31227 31190 30967 31123 31121 31202 31093 31281 31148 31154 30912
o Average ASPATH length.
RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc13 rrc14 rrc15 rrc16
Avg 5.80 6.04 5.43 0.00 5.31 6.18 5.71 5.52 5.58 5.96 5.55 5.21 5.94 5.25 6.98 4.95
Std 2.34 2.35 2.38 0.00 2.17 2.24 2.38 2.16 2.48 2.34 2.40 2.08 2.29 2.29 2.72 1.58
o List of martians appearing throughout the week.
Prefix Origin AS
10.0.0.0/8 6067
10.20.30.0/30 8342
10.100.100.100/30 6067
10.255.150.0/23 8546
172.16.0.0/16 8546
172.30.157.0/26 8968
192.168.0.0/24 6730
192.168.20.0/24 6730
192.168.100.128/25 11858
192.168.199.196/30 13237
192.168.252.0/24 8527
o List of hot-spots during the week.
Prefix Origin AS Number of updates
212.85.220.0/24 30306 567153
212.85.223.0/24 30306 567110
41.204.2.0/24 32398 531716
64.162.116.0/24 5033 286571
91.199.15.0/24 35733 269108
221.135.105.0/24 9583 267863
210.214.232.0/24 9583 255147
210.214.177.0/24 9583 230022
210.214.132.0/24 9583 201124
207.191.238.0/24 31820 195505
Total number of RIS BGP peering sessions: 643