RIS Statistics Report (20080407-20080414)
This report was generated at Mon Apr 14 00:15:02 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 62087 57013 55876 55280 60209 56077 56106 55929 55389 54512 56137 0 0 56515 55434 59683
ARIN 90516 87946 87802 87173 86584 87287 87447 87611 87090 87947 86907 0 0 88673 89776 86589
LACNIC 21527 18178 17956 18009 17838 17996 18017 18094 18071 18016 17920 0 0 18054 21459 17937
RIPE NCC 68458 54706 54213 57573 53272 53055 53460 52414 60450 53471 53349 0 0 53428 52921 52628
AfriNIC 1207 1196 1202 1200 1185 1201 1206 1200 1201 1201 1201 0 0 1201 1201 1199
Old 44190 41986 41066 41810 41449 41722 41728 41391 41338 41022 40995 0 0 41880 41841 41580
IANA 45 1 1 1 1 0 1 1 42 3 1 0 0 1 4 1
RFC1918 104 0 89 0 6 0 0 0 0 4 0 0 0 0 7 0
OTHER 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
TOTAL 288134 261026 258205 261046 260544 257338 257965 256640 263581 256176 256510 0 0 259752 262643 259617
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 13257 13235 13159 13196 13183 13217 13220 13134 13150 13137 13148 0 0 13227 13201 13083
APNIC 3212 3207 3170 3167 3187 3175 3174 3164 3174 3152 3177 0 0 3197 3163 3168
RIPE NCC 11276 11261 11245 11222 11201 11233 11239 11195 11239 11230 11237 0 0 11235 11211 11198
LACNIC 446 444 440 443 442 444 443 442 439 438 441 0 0 445 443 438
AFRINIC 97 97 97 97 95 97 97 97 97 97 97 0 0 97 97 97
IANA 2 2 1 1 1 1 1 1 1 1 1 0 0 1 1 0
Private 82 56 43 31 49 35 32 17 39 32 27 0 0 25 23 16
Others 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Total 28373 28303 28156 28157 28159 28203 28207 28050 28140 28088 28129 0 0 28228 28139 28000
o Number of single-homed ASes.
RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc13 rrc14 rrc15 rrc16
ARIN 4128 4678 4664 5648 4851 5404 5460 7818 5291 6224 4901 0 0 4709 5631 8051
APNIC 837 930 940 1144 1014 1137 1036 1590 1100 1198 1023 0 0 1012 1229 1636
RIPE NCC 3432 3893 3806 4524 4112 4596 4123 6602 4203 4598 4463 0 0 4263 5078 6699
LACNIC 173 198 190 202 207 204 206 249 204 221 203 0 0 200 194 245
AFRINIC 43 44 44 49 44 46 45 51 44 48 46 0 0 45 47 59
IANA 2 2 1 1 1 1 1 1 1 1 1 0 0 1 1 0
Private 64 41 35 22 42 26 22 13 32 25 20 0 0 20 15 15
Others 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Total 8679 9786 9680 11590 10271 11415 10893 16324 10876 12316 10657 0 0 10251 12195 16705
o Number of multi-homed ASes.
RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc13 rrc14 rrc15 rrc16
ARIN 9129 8557 8495 7548 8332 7813 7760 5316 7859 6913 8247 0 0 8518 7570 5032
APNIC 2375 2277 2230 2023 2173 2038 2138 1574 2074 1954 2154 0 0 2185 1934 1532
RIPE NCC 7844 7368 7439 6698 7089 6637 7116 4593 7036 6632 6774 0 0 6972 6133 4499
LACNIC 273 246 250 241 235 240 237 193 235 217 238 0 0 245 249 193
AFRINIC 54 53 53 48 51 51 52 46 53 49 51 0 0 52 50 38
IANA 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Private 18 15 8 9 7 9 10 4 7 7 7 0 0 5 8 1
Others 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Total 19694 18517 18476 16567 17888 16788 17314 11726 17264 15772 17472 0 0 17977 15944 11295
IANA : AS60000 AS65535
Number of 4-byte ASes: 12.
Distribution of AS number wrt Leaf, Transit.
RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc13 rrc14 rrc15 rrc16
Leaf 23639 23726 23627 23799 23705 23784 23706 24078 23716 23776 23719 0 0 23727 23869 24204
Transit 4611 4456 4394 4244 4339 4312 4383 3879 4301 4192 4282 0 0 4387 4160 3707
Transit-only 136 128 141 118 121 115 125 97 128 124 132 0 0 123 114 92
Total 28386 28310 28162 28161 28165 28211 28214 28054 28145 28092 28133 0 0 28237 28143 28003
o Average ASPATH length.
RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc13 rrc14 rrc15 rrc16
Avg 5.94 6.44 5.61 5.92 5.45 5.83 5.90 5.43 5.89 6.42 5.72 0.00 0.00 5.35 6.57 4.98
Std 2.44 2.59 2.43 2.33 2.28 2.23 2.53 2.18 2.47 2.49 2.46 0.00 0.00 2.41 2.40 1.60
o List of martians appearing throughout the week.
Prefix Origin AS
0.0.0.0/32 19151
10.0.22.0/24 39912
10.11.12.0/24 34245
10.11.13.0/24 34245
10.20.0.0/20 39912
10.20.30.0/30 8342
10.128.18.0/23 34245
10.128.22.0/23 34245
10.193.3.0/24 34245
10.193.12.128/28 34245
10.193.14.32/27 34245
10.193.14.64/27 34245
10.193.14.96/27 34245
10.193.14.192/28 34245
10.205.255.0/27 34245
10.205.255.32/27 34245
10.216.0.0/23 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
10.221.3.114/32 1267
10.221.3.115/32 1267
192.168.2.0/24 34245
192.168.10.0/24 34245
192.168.107.0/24 34245
192.168.108.0/24 34245
192.168.109.0/24 34245
192.168.117.0/24 34245
192.168.118.0/24 34245
192.168.119.0/24 34245
o List of hot-spots during the week.
Prefix Origin AS Number of updates
213.91.175.0/24 8866 951552
202.141.0.0/17 2697 769857
125.23.208.0/20 9498 608816
221.135.80.0/24 9583 342595
84.23.100.0/24 34400 321232
78.156.96.0/19 43557 299742
84.23.96.0/19 34400 278520
208.5.210.0/24 27246 269194
207.43.99.0/24 18609 212044
74.125.61.0/24 15169 193745
Total number of RIS BGP peering sessions: 631