RIS Statistics Report (20090330-20090406)
This report was generated at Mon Apr 6 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 77842 73326 0 0 63902 67846 66596 63873 65280 65481 0 67407 70242 0 71198 68570
ARIN 102002 98448 0 0 93876 93699 93763 94902 92513 91980 0 93951 92418 0 96254 92654
LACNIC 26394 22376 0 0 22137 22752 22555 22065 22397 22407 0 22546 21901 0 26323 21891
RIPE NCC 292975 64815 0 0 67886 74857 64301 62095 63793 66768 0 71321 265293 0 65159 63325
AfriNIC 3146 3006 0 0 3022 3030 3041 3020 3041 3029 0 3070 2985 0 3119 3029
Old 45805 43336 0 0 42649 42575 42552 42073 41386 41544 0 41996 41870 0 44482 42259
IANA 33 0 0 0 0 0 0 0 0 0 0 32 1 0 0 0
RFC1918 4245 0 0 0 4 3 5 0 3 1 0 10 4219 0 12 0
OTHER 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
TOTAL 552442 305307 0 0 293476 304762 292813 288028 288413 291210 0 300333 498929 0 306547 291728
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 13362 13202 0 0 13205 13188 13172 12968 13112 13130 0 13173 13156 0 13297 13067
APNIC 3744 3711 0 0 3669 3676 3661 3634 3649 3643 0 3675 3648 0 3658 3650
RIPE NCC 13243 13111 0 0 13110 13113 13109 12980 13111 13101 0 13145 13046 0 13172 13076
LACNIC 1127 1109 0 0 1108 1108 1107 1104 1099 1103 0 1104 1108 0 1123 1096
AFRINIC 258 254 0 0 252 254 254 247 253 253 0 256 250 0 253 250
IANA 2 1 0 0 1 1 1 0 0 1 0 2 1 0 1 0
Private 82 41 0 0 35 26 32 17 30 28 0 37 30 0 41 20
Others 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Total 31819 31430 0 0 31381 31367 31337 30951 31255 31260 0 31393 31240 0 31546 31160
o Number of single-homed ASes.
RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc13 rrc14 rrc15 rrc16
ARIN 4140 4848 0 0 4937 5568 5429 8102 5645 5634 0 4712 5539 0 6645 7998
APNIC 1014 1174 0 0 1238 1286 1308 1861 1445 1401 0 1213 1448 0 1500 1864
RIPE NCC 4047 4861 0 0 4718 5117 4989 8113 5139 4966 0 4627 5266 0 7144 7551
LACNIC 360 426 0 0 419 418 429 543 454 445 0 414 472 0 450 534
AFRINIC 96 107 0 0 106 114 105 123 111 108 0 105 113 0 114 126
IANA 2 1 0 0 1 1 1 0 0 1 0 2 1 0 1 0
Private 58 29 0 0 26 20 23 13 21 17 0 29 19 0 30 16
Others 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Total 9717 11446 0 0 11445 12524 12284 18755 12815 12572 0 11102 12858 0 15884 18089
o Number of multi-homed ASes.
RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc13 rrc14 rrc15 rrc16
ARIN 9222 8354 0 0 8268 7620 7743 4866 7467 7496 0 8461 7617 0 6652 5069
APNIC 2730 2537 0 0 2431 2390 2353 1773 2204 2242 0 2462 2200 0 2158 1786
RIPE NCC 9196 8250 0 0 8392 7996 8120 4867 7972 8135 0 8518 7780 0 6028 5525
LACNIC 767 683 0 0 689 690 678 561 645 658 0 690 636 0 673 562
AFRINIC 162 147 0 0 146 140 149 124 142 145 0 151 137 0 139 124
IANA 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Private 24 12 0 0 9 6 9 4 9 11 0 8 11 0 11 4
Others 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Total 22102 19984 0 0 19936 18843 19053 12196 18440 18688 0 20291 18382 0 15662 13071
IANA : AS64444 AS65535
Number of 4-byte ASes: 28.
Distribution of AS number wrt Leaf, Transit.
RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc13 rrc14 rrc15 rrc16
Leaf 26498 26493 0 0 26469 26504 26442 26563 26453 26435 0 26432 26471 0 26840 26860
Transit 5178 4808 0 0 4779 4730 4753 4248 4663 4677 0 4813 4626 0 4584 4183
Transit-only 161 140 0 0 143 147 155 147 150 157 0 162 148 0 132 123
Total 31837 31441 0 0 31391 31381 31350 30958 31266 31269 0 31407 31245 0 31556 31166
o Average ASPATH length.
RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc13 rrc14 rrc15 rrc16
Avg 5.84 6.14 0.00 0.00 5.09 6.07 5.65 5.39 5.55 5.90 0.00 5.35 6.01 0.00 6.91 4.92
Std 2.41 2.44 0.00 0.00 2.23 2.28 2.48 2.32 2.54 2.35 0.00 2.30 2.35 0.00 2.58 1.65
o List of martians appearing throughout the week.
Prefix Origin AS
10.25.218.32/30 5400
10.101.239.0/24 35807
10.255.150.0/23 8546
172.16.0.0/16 8546
172.28.106.192/28 5400
172.28.122.138/32 5400
172.30.157.0/26 8968
192.168.0.0/24 6730
192.168.11.0/29 31323
192.168.20.0/24 6730
192.168.199.196/30 13237
o List of hot-spots during the week.
Prefix Origin AS Number of updates
41.204.2.0/24 32398 379077
199.45.13.0/24 46653 302496
194.54.176.0/22 31707 225299
217.69.180.0/24 29357 158654
12.33.218.0/24 23181 128566
194.110.240.0/24 42778 101291
84.205.222.0/23 35506 85708
84.205.254.0/23 35506 85666
209.197.12.0/22 29798 78494
91.202.186.0/24 44715 77449
Total number of RIS BGP peering sessions: 636