[SANOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Apr 20 18:44:07 UTC 2012
This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.
The posting is sent to APOPS, NANOG, AfNOG, AusNOG, SANOG, PacNOG, LacNOG,
TRNOG, CaribNOG and the RIPE Routing Working Group.
Daily listings are sent to bgp-stats at lists.apnic.net
For historical data, please see http://thyme.rand.apnic.net.
If you have any comments please contact Philip Smith <pfsinoz at gmail.com>.
Routing Table Report 04:00 +10GMT Sat 21 Apr, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 406332
Prefixes after maximum aggregation: 172729
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 197504
Total ASes present in the Internet Routing Table: 40749
Prefixes per ASN: 9.97
Origin-only ASes present in the Internet Routing Table: 33074
Origin ASes announcing only one prefix: 15626
Transit ASes present in the Internet Routing Table: 5448
Transit-only ASes present in the Internet Routing Table: 136
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 64
Max AS path prepend of ASN ( 9902) 56
Prefixes from unregistered ASNs in the Routing Table: 391
Unregistered ASNs in the Routing Table: 128
Number of 32-bit ASNs allocated by the RIRs: 2611
Number of 32-bit ASNs visible in the Routing Table: 2227
Prefixes from 32-bit ASNs in the Routing Table: 5570
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 119
Number of addresses announced to Internet: 2538235344
Equivalent to 151 /8s, 74 /16s and 101 /24s
Percentage of available address space announced: 68.5
Percentage of allocated address space announced: 68.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.4
Total number of prefixes smaller than registry allocations: 173084
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 99600
Total APNIC prefixes after maximum aggregation: 32224
APNIC Deaggregation factor: 3.09
Prefixes being announced from the APNIC address blocks: 96078
Unique aggregates announced from the APNIC address blocks: 39691
APNIC Region origin ASes present in the Internet Routing Table: 4681
APNIC Prefixes per ASN: 20.53
APNIC Region origin ASes announcing only one prefix: 1238
APNIC Region transit ASes present in the Internet Routing Table: 729
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 185
Number of APNIC addresses announced to Internet: 644102752
Equivalent to 38 /8s, 100 /16s and 58 /24s
Percentage of available APNIC address space announced: 81.7
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
123/8, 124/8, 125/8, 126/8, 133/8, 175/8, 180/8,
182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8,
219/8, 220/8, 221/8, 222/8, 223/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 149874
Total ARIN prefixes after maximum aggregation: 76295
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 121117
Unique aggregates announced from the ARIN address blocks: 50365
ARIN Region origin ASes present in the Internet Routing Table: 15044
ARIN Prefixes per ASN: 8.05
ARIN Region origin ASes announcing only one prefix: 5734
ARIN Region transit ASes present in the Internet Routing Table: 1585
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 29
Number of ARIN region 32-bit ASNs visible in the Routing Table: 17
Number of ARIN addresses announced to Internet: 807297728
Equivalent to 48 /8s, 30 /16s and 98 /24s
Percentage of available ARIN address space announced: 64.2
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863, 39936-40959, 46080-47103
53248-55295, 393216-394239
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8,
53/8, 54/8, 55/8, 56/8, 57/8, 63/8, 64/8,
65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8,
72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8,
98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 173/8,
174/8, 184/8, 199/8, 204/8, 205/8, 206/8, 207/8,
208/8, 209/8, 214/8, 215/8, 216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 101440
Total RIPE prefixes after maximum aggregation: 53739
RIPE Deaggregation factor: 1.89
Prefixes being announced from the RIPE address blocks: 93359
Unique aggregates announced from the RIPE address blocks: 58202
RIPE Region origin ASes present in the Internet Routing Table: 16502
RIPE Prefixes per ASN: 5.66
RIPE Region origin ASes announcing only one prefix: 8044
RIPE Region transit ASes present in the Internet Routing Table: 2626
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1495
Number of RIPE addresses announced to Internet: 509709960
Equivalent to 30 /8s, 97 /16s and 142 /24s
Percentage of available RIPE address space announced: 82.1
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-45055, 47104-52223, 56320-58367
196608-198655
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8,
83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8,
90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 40646
Total LACNIC prefixes after maximum aggregation: 8266
LACNIC Deaggregation factor: 4.92
Prefixes being announced from the LACNIC address blocks: 40505
Unique aggregates announced from the LACNIC address blocks: 20214
LACNIC Region origin ASes present in the Internet Routing Table: 1586
LACNIC Prefixes per ASN: 25.54
LACNIC Region origin ASes announcing only one prefix: 441
LACNIC Region transit ASes present in the Internet Routing Table: 299
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 24
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 525
Number of LACNIC addresses announced to Internet: 99324808
Equivalent to 5 /8s, 235 /16s and 147 /24s
Percentage of available LACNIC address space announced: 65.8
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 9028
Total AfriNIC prefixes after maximum aggregation: 2137
AfriNIC Deaggregation factor: 4.22
Prefixes being announced from the AfriNIC address blocks: 7079
Unique aggregates announced from the AfriNIC address blocks: 2166
AfriNIC Region origin ASes present in the Internet Routing Table: 534
AfriNIC Prefixes per ASN: 13.26
AfriNIC Region origin ASes announcing only one prefix: 169
AfriNIC Region transit ASes present in the Internet Routing Table: 116
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 31771648
Equivalent to 1 /8s, 228 /16s and 204 /24s
Percentage of available AfriNIC address space announced: 47.3
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 2497 11113 1012 Korea Telecom (KIX)
17974 1799 503 63 PT TELEKOMUNIKASI INDONESIA
7545 1677 301 88 TPG Internet Pty Ltd
4755 1587 388 166 TATA Communications formerly
9829 1249 1069 30 BSNL National Internet Backbo
9583 1227 94 528 Sify Limited
7552 1170 1062 11 Vietel Corporation
4808 1105 2049 318 CNCGROUP IP network: China169
24560 1024 385 167 Bharti Airtel Ltd., Telemedia
9498 947 291 64 BHARTI Airtel Ltd.
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3427 3807 195 bellsouth.net, inc.
7029 3369 985 157 Windstream Communications Inc
18566 2091 382 179 Covad Communications
1785 1903 680 130 PaeTec Communications, Inc.
20115 1640 1566 619 Charter Communications
4323 1601 1044 381 Time Warner Telecom
22773 1576 2910 111 Cox Communications, Inc.
30036 1412 258 763 Mediacom Communications Corp
7018 1260 9775 819 AT&T WorldNet Services
11492 1186 216 364 Cable One
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1745 544 16 Corbina telecom
2118 1304 97 14 EUnet/RELCOM Autonomous Syste
31148 680 37 9 FreeNet ISP
34984 679 188 175 BILISIM TELEKOM
6830 657 2215 426 UPC Distribution Services
20940 649 206 501 Akamai Technologies European
12479 647 666 63 Uni2 Autonomous System
8551 572 360 81 Bezeq International
3320 533 8442 399 Deutsche Telekom AG
2578 501 33 7 Demos, Moscow, Russia
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1810 327 176 TVCABLE BOGOTA
28573 1781 1107 59 NET Servicos de Comunicao S.A
6503 1533 418 65 AVANTEL, S.A.
8151 1490 3018 350 UniNet S.A. de C.V.
7303 1362 829 191 Telecom Argentina Stet-France
26615 902 697 32 Tim Brasil S.A.
27947 683 74 98 Telconet S.A
11172 637 91 73 Servicios Alestra S.A de C.V
22047 582 326 15 VTR PUNTO NET S.A.
3816 572 242 100 Empresa Nacional de Telecomun
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1314 958 13 TEDATA
24863 840 274 35 LINKdotNET AS number
6713 490 649 18 Itissalat Al-MAGHRIB
3741 265 921 223 The Internet Solution
12258 197 28 62 Vodacom Internet Company
24835 180 80 8 RAYA Telecom - Egypt
16637 171 666 83 MTN Network Solutions
33776 171 11 21 Starcomms Nigeria Limited
15706 169 32 6 Sudatel Internet Exchange Aut
29571 159 15 15 Ci Telecom Autonomous system
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3427 3807 195 bellsouth.net, inc.
7029 3369 985 157 Windstream Communications Inc
4766 2497 11113 1012 Korea Telecom (KIX)
18566 2091 382 179 Covad Communications
1785 1903 680 130 PaeTec Communications, Inc.
10620 1810 327 176 TVCABLE BOGOTA
17974 1799 503 63 PT TELEKOMUNIKASI INDONESIA
28573 1781 1107 59 NET Servicos de Comunicao S.A
8402 1745 544 16 Corbina telecom
7545 1677 301 88 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 3369 3212 Windstream Communications Inc
18566 2091 1912 Covad Communications
1785 1903 1773 PaeTec Communications, Inc.
17974 1799 1736 PT TELEKOMUNIKASI INDONESIA
8402 1745 1729 Corbina telecom
28573 1781 1722 NET Servicos de Comunicao S.A
10620 1810 1634 TVCABLE BOGOTA
7545 1677 1589 TPG Internet Pty Ltd
4766 2497 1485 Korea Telecom (KIX)
6503 1533 1468 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
32873 UNALLOCATED 12.46.100.0/23 10912 InterNAP Network Ser
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
Complete listing at http://thyme.rand.apnic.net/current/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
27.112.114.0/24 23884 Proimage Engineering and Comm
37.252.112.0/21 35094 Bredbandsfylket Troms AS
Complete listing at http://thyme.rand.apnic.net/current/data-add-IANA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:12 /10:28 /11:81 /12:235
/13:459 /14:829 /15:1484 /16:12227 /17:6271 /18:10543
/19:20619 /20:28937 /21:29930 /22:40516 /23:37836 /24:212630
/25:1194 /26:1429 /27:786 /28:166 /29:65 /30:17
/31:0 /32:19
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3027 3369 Windstream Communications Inc
6389 2145 3427 bellsouth.net, inc.
18566 2040 2091 Covad Communications
8402 1722 1745 Corbina telecom
10620 1695 1810 TVCABLE BOGOTA
30036 1358 1412 Mediacom Communications Corp
6503 1291 1533 AVANTEL, S.A.
11492 1149 1186 Cable One
8452 1116 1314 TEDATA
1785 1071 1903 PaeTec Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:538 2:755 4:14 6:3 8:402 12:2007
13:1 14:599 15:12 16:3 17:7 20:22
23:167 24:1770 27:1257 31:981 32:57 33:2
34:2 36:8 37:366 38:798 40:120 41:3164
42:134 44:3 46:1495 47:3 49:371 50:530
52:13 54:8 55:8 56:3 57:31 58:960
59:519 60:281 61:1265 62:981 63:1992 64:4169
65:2251 66:4491 67:2019 68:1167 69:3189 70:902
71:486 72:1819 74:2594 75:494 76:318 77:944
78:1006 79:485 80:1209 81:903 82:667 83:550
84:473 85:1209 86:412 87:922 88:345 89:1625
90:291 91:4737 92:525 93:1352 94:1463 95:1166
96:360 97:316 98:902 99:36 100:7 101:174
103:1007 106:102 107:188 108:235 109:1287 110:756
111:921 112:445 113:597 114:642 115:880 116:908
117:714 118:906 119:1231 120:354 121:798 122:1638
123:1079 124:1352 125:1248 128:546 129:193 130:252
131:591 132:179 133:22 134:242 135:62 136:212
137:176 138:355 139:147 140:491 141:245 142:387
143:400 144:523 145:69 146:494 147:280 148:758
149:295 150:158 151:175 152:464 153:171 154:9
155:435 156:215 157:380 158:174 159:523 160:338
161:262 162:350 163:187 164:571 165:394 166:573
167:466 168:822 169:127 170:858 171:126 172:2
173:1745 174:563 175:433 176:427 177:666 178:1334
180:1180 181:75 182:810 183:288 184:453 185:1
186:2211 187:1041 188:1183 189:1779 190:5507 192:5999
193:5544 194:4646 195:3593 196:1292 197:130 198:3652
199:4521 200:5801 201:1927 202:8520 203:8588 204:4327
205:2494 206:2752 207:2793 208:4055 209:3611 210:2763
211:1475 212:2017 213:1907 214:834 215:104 216:5110
217:1538 218:539 219:344 220:1227 221:556 222:322
223:336
End of report
More information about the sanog
mailing list