[lacnog] Weekly Routing Table Report
Routing Analysis Role Account
cscora en apnic.net
Vie Sep 10 15:43:01 BRT 2010
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,
CaribNOG and the RIPE Routing Working Group.
Daily listings are sent to bgp-stats en lists.apnic.net
For historical data, please see http://thyme.apnic.net.
If you have any comments please contact Philip Smith <pfs en cisco.com>.
Routing Table Report 04:00 +10GMT Sat 11 Sep, 2010
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 331078
Prefixes after maximum aggregation: 151868
Deaggregation factor: 2.18
Unique aggregates announced to Internet: 162291
Total ASes present in the Internet Routing Table: 34754
Prefixes per ASN: 9.53
Origin-only ASes present in the Internet Routing Table: 30146
Origin ASes announcing only one prefix: 14627
Transit ASes present in the Internet Routing Table: 4608
Transit-only ASes present in the Internet Routing Table: 104
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 35
Max AS path prepend of ASN (45127) 27
Prefixes from unregistered ASNs in the Routing Table: 2342
Unregistered ASNs in the Routing Table: 1103
Number of 32-bit ASNs allocated by the RIRs: 763
Prefixes from 32-bit ASNs in the Routing Table: 1006
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 187
Number of addresses announced to Internet: 2264627392
Equivalent to 134 /8s, 251 /16s and 120 /24s
Percentage of available address space announced: 61.1
Percentage of allocated address space announced: 65.2
Percentage of available address space allocated: 93.7
Percentage of address space in use by end-sites: 84.7
Total number of prefixes smaller than registry allocations: 156686
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 80589
Total APNIC prefixes after maximum aggregation: 27550
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 77583
Unique aggregates announced from the APNIC address blocks: 34032
APNIC Region origin ASes present in the Internet Routing Table: 4179
APNIC Prefixes per ASN: 18.56
APNIC Region origin ASes announcing only one prefix: 1166
APNIC Region transit ASes present in the Internet Routing Table: 645
Average APNIC Region AS path length visible: 3.7
Max APNIC Region AS path length visible: 35
Number of APNIC addresses announced to Internet: 543897888
Equivalent to 32 /8s, 107 /16s and 57 /24s
Percentage of available APNIC address space announced: 77.2
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
APNIC Address Blocks 1/8, 14/8, 27/8, 43/8, 49/8, 58/8, 59/8,
60/8, 61/8, 101/8, 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: 135897
Total ARIN prefixes after maximum aggregation: 69980
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 108534
Unique aggregates announced from the ARIN address blocks: 42821
ARIN Region origin ASes present in the Internet Routing Table: 13893
ARIN Prefixes per ASN: 7.81
ARIN Region origin ASes announcing only one prefix: 5328
ARIN Region transit ASes present in the Internet Routing Table: 1375
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 733340320
Equivalent to 43 /8s, 181 /16s and 226 /24s
Percentage of available ARIN address space announced: 62.4
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, 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, 54/8,
55/8, 56/8, 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, 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: 75671
Total RIPE prefixes after maximum aggregation: 44053
RIPE Deaggregation factor: 1.72
Prefixes being announced from the RIPE address blocks: 69110
Unique aggregates announced from the RIPE address blocks: 45303
RIPE Region origin ASes present in the Internet Routing Table: 14768
RIPE Prefixes per ASN: 4.68
RIPE Region origin ASes announcing only one prefix: 7593
RIPE Region transit ASes present in the Internet Routing Table: 2218
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 24
Number of RIPE addresses announced to Internet: 438226944
Equivalent to 26 /8s, 30 /16s and 208 /24s
Percentage of available RIPE address space announced: 76.8
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, 196608-197631
RIPE Address Blocks 2/8, 25/8, 31/8, 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,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 30221
Total LACNIC prefixes after maximum aggregation: 7101
LACNIC Deaggregation factor: 4.26
Prefixes being announced from the LACNIC address blocks: 28778
Unique aggregates announced from the LACNIC address blocks: 15291
LACNIC Region origin ASes present in the Internet Routing Table: 1345
LACNIC Prefixes per ASN: 21.40
LACNIC Region origin ASes announcing only one prefix: 419
LACNIC Region transit ASes present in the Internet Routing Table: 233
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 17
Number of LACNIC addresses announced to Internet: 76470144
Equivalent to 4 /8s, 142 /16s and 215 /24s
Percentage of available LACNIC address space announced: 57.0
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 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: 7448
Total AfriNIC prefixes after maximum aggregation: 1868
AfriNIC Deaggregation factor: 3.99
Prefixes being announced from the AfriNIC address blocks: 5723
Unique aggregates announced from the AfriNIC address blocks: 1653
AfriNIC Region origin ASes present in the Internet Routing Table: 399
AfriNIC Prefixes per ASN: 14.34
AfriNIC Region origin ASes announcing only one prefix: 121
AfriNIC Region transit ASes present in the Internet Routing Table: 89
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 20156416
Equivalent to 1 /8s, 51 /16s and 144 /24s
Percentage of available AfriNIC address space announced: 60.1
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1868 8412 500 Korea Telecom (KIX)
4755 1459 367 163 TATA Communications formerly
7545 1364 234 83 TPG Internet Pty Ltd
17488 1346 153 123 Hathway IP Over Cable Interne
17974 1212 296 66 PT TELEKOMUNIKASI INDONESIA
24560 1027 303 177 Bharti Airtel Ltd., Telemedia
9583 1017 76 490 Sify Limited
4808 932 1713 260 CNCGROUP IP network: China169
18101 847 97 127 Reliance Infocom Ltd Internet
9829 818 691 36 BSNL National Internet Backbo
Complete listing at http://thyme.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3807 3667 273 bellsouth.net, inc.
4323 2709 1107 393 Time Warner Telecom
19262 1814 4644 284 Verizon Global Networks
1785 1791 698 131 PaeTec Communications, Inc.
20115 1492 1529 652 Charter Communications
7018 1473 5734 949 AT&T WorldNet Services
6478 1329 273 150 AT&T Worldnet Services
2386 1288 554 906 AT&T Data Communications Serv
11492 1193 227 90 Cable One
22773 1185 2858 61 Cox Communications, Inc.
Complete listing at http://thyme.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8551 544 353 46 Bezeq International
3292 448 2026 389 TDC Tele Danmark
30890 444 100 212 Evolva Telecom
702 411 1869 324 UUNET - Commercial IP service
8866 404 117 19 Bulgarian Telecommunication C
3301 376 1672 331 TeliaNet Sweden
34984 372 90 184 BILISIM TELEKOM
3320 367 7327 321 Deutsche Telekom AG
12479 357 576 5 Uni2 Autonomous System
31148 336 18 77 FreeNet ISP
Complete listing at http://thyme.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1505 2908 283 UniNet S.A. de C.V.
10620 1319 247 148 TVCABLE BOGOTA
28573 1120 862 111 NET Servicos de Comunicao S.A
6503 884 194 280 AVANTEL, S.A.
7303 796 408 101 Telecom Argentina Stet-France
14420 569 36 76 CORPORACION NACIONAL DE TELEC
22047 561 310 15 VTR PUNTO NET S.A.
3816 480 209 94 Empresa Nacional de Telecomun
7738 477 922 30 Telecomunicacoes da Bahia S.A
11172 444 99 76 Servicios Alestra S.A de C.V
Complete listing at http://thyme.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1153 445 10 TEDATA
24863 728 147 39 LINKdotNET AS number
36992 662 279 177 Etisalat MISR
3741 266 906 224 The Internet Solution
33776 209 12 12 Starcomms Nigeria Limited
6713 203 199 12 Itissalat Al-MAGHRIB
29571 198 19 11 Ci Telecom Autonomous system
2018 197 277 64 Tertiary Education Network
24835 190 78 9 RAYA Telecom - Egypt
16637 154 440 97 MTN Network Solutions
Complete listing at http://thyme.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3807 3667 273 bellsouth.net, inc.
4323 2709 1107 393 Time Warner Telecom
4766 1868 8412 500 Korea Telecom (KIX)
19262 1814 4644 284 Verizon Global Networks
1785 1791 698 131 PaeTec Communications, Inc.
8151 1505 2908 283 UniNet S.A. de C.V.
20115 1492 1529 652 Charter Communications
7018 1473 5734 949 AT&T WorldNet Services
4755 1459 367 163 TATA Communications formerly
7545 1364 234 83 TPG Internet Pty Ltd
Complete listing at http://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2709 2316 Time Warner Telecom
1785 1791 1660 PaeTec Communications, Inc.
19262 1814 1530 Verizon Global Networks
4766 1868 1368 Korea Telecom (KIX)
4755 1459 1296 TATA Communications formerly
7545 1364 1281 TPG Internet Pty Ltd
17488 1346 1223 Hathway IP Over Cable Interne
8151 1505 1222 UniNet S.A. de C.V.
6478 1329 1179 AT&T Worldnet Services
10620 1319 1171 TVCABLE BOGOTA
Complete listing at http://thyme.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
11946 UNALLOCATED 8.12.155.0/24 40913 Quality Technology S
33084 UNALLOCATED 8.15.195.0/24 3356 Level 3 Communicatio
16734 UNALLOCATED 8.18.204.0/24 26914 Global Netoptex, Inc
53562 UNALLOCATED 8.19.94.0/24 3356 Level 3 Communicatio
22015 UNALLOCATED 8.22.137.0/24 14989 Broadview Networks
46856 UNALLOCATED 8.22.184.0/22 3356 Level 3 Communicatio
26169 UNALLOCATED 8.225.177.0/24 20225 TelJet
32249 UNALLOCATED 8.225.178.0/24 3356 Level 3 Communicatio
16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic
46883 UNALLOCATED 12.4.222.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
31.0.0.0/16 12654 RIPE NCC RIS Project
31.1.0.0/21 12654 RIPE NCC RIS Project
31.1.24.0/24 12654 RIPE NCC RIS Project
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.196.0/24 36990 Alkan Telecom Ltd
41.223.197.0/24 36990 Alkan Telecom Ltd
41.223.198.0/24 36990 Alkan Telecom Ltd
41.223.199.0/24 36990 Alkan Telecom Ltd
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
Complete listing at http://thyme.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 /9:10 /10:25 /11:67 /12:199
/13:414 /14:729 /15:1317 /16:11282 /17:5436 /18:9300
/19:18612 /20:23478 /21:23608 /22:30739 /23:30142 /24:172526
/25:1068 /26:1181 /27:703 /28:163 /29:47 /30:6
/31:0 /32:7
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2427 3807 bellsouth.net, inc.
4766 1490 1868 Korea Telecom (KIX)
4323 1370 2709 Time Warner Telecom
1785 1254 1791 PaeTec Communications, Inc.
10620 1207 1319 TVCABLE BOGOTA
11492 1095 1193 Cable One
17488 1087 1346 Hathway IP Over Cable Interne
18566 1068 1087 Covad Communications
8452 1044 1153 TEDATA
24560 928 1027 Bharti Airtel Ltd., Telemedia
Complete listing at http://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:66 2:10 4:13 8:305 12:2014 13:8
14:2 15:21 16:3 17:9 20:7 24:1445
27:335 31:1 32:60 33:22 38:694 40:97
41:2529 44:3 46:62 47:16 49:1 52:12
55:6 56:2 57:29 58:825 59:498 60:474
61:1082 62:1108 63:1968 64:3734 65:2306 66:3987
67:1865 68:1131 69:2794 70:724 71:371 72:1932
73:2 74:2327 75:279 76:331 77:906 78:650
79:434 80:993 81:812 82:490 83:442 84:679
85:1040 86:448 87:686 88:323 89:1550 90:96
91:3004 92:424 93:989 94:1170 95:692 96:510
97:218 98:622 99:34 101:1 108:64 109:665
110:499 111:573 112:298 113:298 114:451 115:584
116:1096 117:657 118:508 119:874 120:141 121:709
122:1543 123:928 124:1214 125:1240 128:226 129:157
130:169 131:539 132:258 133:17 134:196 135:46
136:222 137:137 138:272 139:107 140:478 141:197
142:343 143:351 144:474 145:54 146:420 147:169
148:665 149:303 150:152 151:233 152:287 153:170
154:3 155:362 156:167 157:332 158:112 159:358
160:313 161:183 162:271 163:167 164:417 165:368
166:468 167:422 168:649 169:156 170:727 171:61
172:2 173:1045 174:487 175:167 176:1 177:1
178:462 180:641 181:1 182:208 183:236 184:155
186:606 187:522 188:806 189:806 190:4109 192:5771
193:4734 194:3436 195:2797 196:1226 198:3579 199:3570
200:5439 201:1598 202:8091 203:8265 204:4020 205:2393
206:2529 207:3068 208:3880 209:3466 210:2554 211:1291
212:1782 213:1683 214:660 215:67 216:4784 217:1592
218:473 219:398 220:1143 221:386 222:313 223:40
End of report
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