RIS Statistics Report (20081020-20081027)
This report was generated at Mon Oct 27 00:15:01 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 69408 68128 60233 0 65295 62376 61031 61460 59728 60006 60699 61491 60639 60571 60410 63669
ARIN 96883 95196 90922 0 91617 91980 91370 93691 90589 90431 90901 91793 91044 90596 92649 91585
LACNIC 23323 20243 20122 0 20268 20262 20252 20218 20157 20076 20203 20139 20139 20095 23222 20058
RIPE NCC 77435 61132 65002 0 64428 60925 60711 57944 60066 60725 60600 60301 61181 59494 59553 58490
AfriNIC 1535 1503 1526 0 1517 1529 1531 1530 1522 1522 1529 1489 1525 1526 1530 1520
Old 45387 43745 41918 0 42605 42786 42708 42309 41663 41707 41839 42591 42438 41754 42862 42633
IANA 42 1 1 0 40 1 1 1 1 1 1 1 1 1 4 1
RFC1918 67 0 30 0 15 3 5 0 0 2 4 4 1 4 15 0
OTHER 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
TOTAL 314080 289948 279754 0 285785 279862 277609 277153 273726 274470 275776 277809 276968 274041 280245 277956
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 12924 12897 12819 0 12890 12874 12859 12806 12809 12809 12824 12890 12869 12820 12870 12754
APNIC 3534 3525 3472 0 3503 3494 3475 3463 3465 3462 3485 3508 3463 3485 3459 3458
RIPE NCC 12330 12297 12286 0 12283 12279 12287 12228 12277 12268 12290 12287 12271 12275 12236 12249
LACNIC 1049 1042 1033 0 1042 1040 1038 1037 1032 1032 1034 1041 1040 1035 1046 1028
AFRINIC 230 227 228 0 227 227 227 223 226 226 229 228 226 228 225 224
IANA 2 1 2 0 2 1 2 1 2 1 2 2 1 2 1 1
Private 91 56 34 0 43 32 39 23 35 28 45 43 33 38 32 21
Others 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Total 30161 30045 29874 0 29990 29947 29927 29781 29846 29826 29910 29999 29903 29884 29869 29735
o Number of single-homed ASes.
RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc13 rrc14 rrc15 rrc16
ARIN 3982 4637 4715 0 4707 5342 5265 7782 5647 5177 4644 4545 5147 4924 6471 7664
APNIC 889 1079 1155 0 1133 1234 1192 1639 1256 1297 1098 1109 1243 1192 1558 1801
RIPE NCC 3743 4537 4354 0 4396 5019 4440 7460 4813 4636 4440 4501 4714 4906 6104 7021
LACNIC 344 409 413 0 398 421 421 514 437 437 404 395 437 415 419 517
AFRINIC 76 82 80 0 87 85 80 95 87 87 82 82 88 85 90 105
IANA 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1
Private 55 30 22 0 34 16 23 13 29 19 34 33 19 27 18 18
Others 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Total 9090 10774 10739 0 10755 12117 11421 17503 12270 11653 10703 10665 11648 11550 14660 17127
o Number of multi-homed ASes.
RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc13 rrc14 rrc15 rrc16
ARIN 8942 8260 8104 0 8183 7532 7594 5024 7162 7632 8180 8345 7722 7896 6399 5090
APNIC 2645 2446 2317 0 2370 2260 2283 1824 2209 2165 2387 2399 2220 2293 1901 1657
RIPE NCC 8587 7760 7932 0 7887 7260 7847 4768 7464 7632 7850 7786 7557 7369 6132 5228
LACNIC 705 633 620 0 644 619 617 523 595 595 630 646 603 620 627 511
AFRINIC 154 145 148 0 140 142 147 128 139 139 147 146 138 143 135 119
IANA 2 1 2 0 2 1 2 1 1 1 2 2 1 2 1 0
Private 36 26 12 0 9 16 16 10 6 9 11 10 14 11 14 3
Others 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Total 21071 19271 19135 0 19235 17830 18506 12278 17576 18173 19207 19334 18255 18334 15209 12608
IANA : AS64449 AS65535
Number of 4-byte ASes: 15.
Distribution of AS number wrt Leaf, Transit.
RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc13 rrc14 rrc15 rrc16
Leaf 25099 25241 25133 0 25232 25280 25170 25523 25222 25189 25158 25210 25231 25214 25365 25584
Transit 4923 4672 4604 0 4646 4548 4634 4151 4500 4505 4620 4660 4556 4542 4384 4053
Transit-only 153 141 143 0 120 127 131 113 128 136 137 136 123 136 126 102
Total 30175 30054 29880 0 29998 29955 29935 29787 29850 29830 29915 30006 29910 29892 29875 29739
o Average ASPATH length.
RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc13 rrc14 rrc15 rrc16
Avg 5.74 5.96 5.38 0.00 5.21 5.92 5.67 5.36 5.47 5.85 5.36 5.25 6.01 5.11 6.77 4.90
Std 2.33 2.44 2.37 0.00 2.12 2.17 2.39 2.23 2.28 2.22 2.35 2.27 2.22 2.25 2.53 1.55
o List of martians appearing throughout the week.
Prefix Origin AS
10.0.0.0/8 39637
10.0.20.0/24 39637
10.0.22.0/24 39912
10.10.12.128/25 28809
10.20.0.0/20 39912
10.20.30.0/30 8342
10.100.100.100/30 6067
10.128.22.0/23 34245
10.159.178.128/25 28809
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
10.201.64.0/29 34245
10.205.64.0/24 34245
10.205.65.0/24 34245
10.205.252.0/24 34245
10.205.255.0/26 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
10.254.250.0/24 39637
10.254.254.0/24 39637
172.16.0.0/12 39637
172.16.173.0/25 28809
172.16.199.0/25 28809
172.18.0.3/32 8468
172.25.4.0/24 31501
192.168.0.0/24 39637
192.168.110.0/24 39637
192.168.192.0/21 7497
o List of hot-spots during the week.
Prefix Origin AS Number of updates
189.70.0.0/19 7738 6092001
221.134.222.0/24 9583 583984
210.214.151.0/24 9583 481483
221.135.80.0/24 9583 435387
12.2.46.0/24 22492 349849
192.12.120.0/24 5691 275728
195.47.233.0/24 30850 271758
74.209.130.0/23 29798 195888
209.197.12.0/22 29798 192156
64.162.116.0/24 5033 138598
Total number of RIS BGP peering sessions: 642