RIS Statistics Report (20081013-20081020)
This report was generated at Mon Oct 20 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 68367 66989 58893 0 64507 61502 60220 60225 58864 58929 59534 61043 59490 59262 59150 63229
ARIN 97184 95520 90442 0 91097 91949 91359 93654 90446 90475 90793 91877 91259 90503 92987 91552
LACNIC 23051 20188 20119 0 20186 20330 20341 20291 20145 20093 20272 20188 20238 20163 22887 20035
RIPE NCC 81007 60056 60402 0 59212 59408 60910 57822 66266 59627 59769 63933 60600 58591 58466 58136
AfriNIC 1491 1464 1481 0 1475 1485 1487 1485 1475 1474 1484 1468 1485 1481 1477 1472
Old 45183 43591 41838 0 42508 42677 42618 42300 41571 41663 41761 42487 42601 41666 42609 42669
IANA 40 1 1 0 1 1 1 1 1 1 1 40 1 1 1 1
RFC1918 61 0 32 0 4 1 2 0 0 2 0 7 2 0 14 0
OTHER 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
TOTAL 316384 287809 273208 0 278990 277353 276938 275778 278768 272264 273614 281043 275676 271667 277591 277094
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 12911 12874 12803 0 12873 12856 12842 12781 12790 12793 12810 12875 12853 12800 12842 12742
APNIC 3529 3518 3464 0 3496 3489 3476 3456 3460 3454 3476 3505 3461 3477 3451 3452
RIPE NCC 12300 12264 12257 0 12253 12245 12258 12194 12250 12242 12262 12260 12250 12247 12206 12221
LACNIC 1046 1038 1030 0 1040 1036 1038 1033 1029 1030 1030 1038 1036 1031 1040 1024
AFRINIC 228 225 227 0 225 226 226 224 225 225 227 226 223 227 224 223
IANA 3 1 2 0 1 2 2 1 2 2 1 3 1 1 1 1
Private 78 44 36 0 41 32 35 27 34 24 37 36 32 31 25 20
Others 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Total 30095 29964 29819 0 29929 29886 29877 29716 29790 29770 29843 29943 29856 29814 29789 29683
o Number of single-homed ASes.
RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc13 rrc14 rrc15 rrc16
ARIN 3991 4675 4701 0 4763 5508 5531 7841 5744 5485 4710 4507 5137 4970 6487 7854
APNIC 884 1085 1148 0 1136 1249 1236 1659 1284 1331 1089 1090 1219 1165 1483 1847
RIPE NCC 3749 4619 4337 0 4422 4934 4597 7457 4823 4744 4540 4523 4665 4959 6400 7017
LACNIC 335 396 396 0 386 407 405 484 414 431 386 389 412 396 425 503
AFRINIC 79 88 84 0 86 89 87 96 88 90 86 86 88 87 94 102
IANA 1 0 0 0 0 0 0 0 0 1 0 1 0 0 1 1
Private 49 32 20 0 31 15 19 15 25 18 22 28 20 22 11 15
Others 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Total 9088 10895 10686 0 10824 12202 11875 17552 12378 12100 10833 10624 11541 11599 14901 17339
o Number of multi-homed ASes.
RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc13 rrc14 rrc15 rrc16
ARIN 8920 8199 8102 0 8110 7348 7311 4940 7046 7308 8100 8368 7716 7830 6355 4888
APNIC 2645 2433 2316 0 2360 2240 2240 1797 2176 2123 2387 2415 2242 2312 1968 1605
RIPE NCC 8551 7645 7920 0 7831 7311 7661 4737 7427 7498 7722 7737 7585 7288 5806 5204
LACNIC 711 642 634 0 654 629 633 549 615 599 644 649 624 635 615 521
AFRINIC 149 137 143 0 139 137 139 128 137 135 141 140 135 140 130 121
IANA 2 1 2 0 1 2 2 1 2 1 1 2 1 1 0 0
Private 29 12 16 0 10 17 16 12 9 6 15 8 12 9 14 5
Others 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Total 21007 19069 19133 0 19105 17684 18002 12164 17412 17670 19010 19319 18315 18215 14888 12344
IANA : AS64449 AS64441 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 25044 25217 25060 0 25200 25216 25137 25478 25180 25179 25107 25169 25170 25159 25367 25534
Transit 4916 4632 4622 0 4608 4561 4621 4134 4483 4462 4600 4644 4572 4528 4315 4044
Transit-only 149 125 146 0 128 120 128 106 131 131 141 136 121 134 110 108
Total 30109 29974 29828 0 29936 29897 29886 29718 29794 29772 29848 29949 29863 29821 29792 29686
o Average ASPATH length.
RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc13 rrc14 rrc15 rrc16
Avg 5.74 5.87 5.45 0.00 5.24 5.98 5.72 5.37 5.44 5.74 5.39 5.29 6.15 5.13 6.56 4.92
Std 2.31 2.26 2.34 0.00 2.15 2.23 2.38 2.15 2.31 2.25 2.34 2.24 2.36 2.30 2.40 1.66
o List of martians appearing throughout the week.
Prefix Origin AS
10.0.0.0/30 8468
10.0.20.0/24 39637
10.0.22.0/24 39912
10.20.0.0/20 39912
10.20.30.0/30 8342
10.100.100.100/30 6067
10.128.22.0/23 34245
10.193.3.0/24 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
192.168.1.0/24 25061
192.168.11.0/29 31323
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 3978570
189.132.0.0/19 8151 1528307
193.43.220.0/23 35675 1421099
192.12.120.0/24 5691 484444
221.134.222.0/24 9583 468951
210.214.151.0/24 9583 443042
221.135.80.0/24 9583 428543
64.162.116.0/24 5033 347750
12.2.46.0/24 22492 302168
195.47.233.0/24 30850 260929
Total number of RIS BGP peering sessions: 642