[AusNOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Sat Nov 13 05:26:23 EST 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 at lists.apnic.net
For historical data, please see http://thyme.rand.apnic.net.
If you have any comments please contact Philip Smith <pfs at cisco.com>.
Routing Table Report 04:00 +10GMT Sat 13 Nov, 2010
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 337475
Prefixes after maximum aggregation: 153810
Deaggregation factor: 2.19
Unique aggregates announced to Internet: 165548
Total ASes present in the Internet Routing Table: 35234
Prefixes per ASN: 9.58
Origin-only ASes present in the Internet Routing Table: 30369
Origin ASes announcing only one prefix: 14826
Transit ASes present in the Internet Routing Table: 4865
Transit-only ASes present in the Internet Routing Table: 117
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 31
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 295
Unregistered ASNs in the Routing Table: 124
Number of 32-bit ASNs allocated by the RIRs: 880
Prefixes from 32-bit ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 195
Number of addresses announced to Internet: 2298665376
Equivalent to 137 /8s, 2 /16s and 217 /24s
Percentage of available address space announced: 62.0
Percentage of allocated address space announced: 65.6
Percentage of available address space allocated: 94.6
Percentage of address space in use by end-sites: 85.9
Total number of prefixes smaller than registry allocations: 139046
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 82694
Total APNIC prefixes after maximum aggregation: 28127
APNIC Deaggregation factor: 2.94
Prefixes being announced from the APNIC address blocks: 79584
Unique aggregates announced from the APNIC address blocks: 34871
APNIC Region origin ASes present in the Internet Routing Table: 4237
APNIC Prefixes per ASN: 18.78
APNIC Region origin ASes announcing only one prefix: 1178
APNIC Region transit ASes present in the Internet Routing Table: 680
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 563115552
Equivalent to 33 /8s, 144 /16s and 118 /24s
Percentage of available APNIC address space announced: 76.3
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, 36/8, 42/8, 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: 137756
Total ARIN prefixes after maximum aggregation: 71405
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 109127
Unique aggregates announced from the ARIN address blocks: 43688
ARIN Region origin ASes present in the Internet Routing Table: 14028
ARIN Prefixes per ASN: 7.78
ARIN Region origin ASes announcing only one prefix: 5371
ARIN Region transit ASes present in the Internet Routing Table: 1493
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 740228864
Equivalent to 44 /8s, 30 /16s and 255 /24s
Percentage of available ARIN address space announced: 63.0
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: 77788
Total RIPE prefixes after maximum aggregation: 44916
RIPE Deaggregation factor: 1.73
Prefixes being announced from the RIPE address blocks: 71248
Unique aggregates announced from the RIPE address blocks: 46676
RIPE Region origin ASes present in the Internet Routing Table: 14985
RIPE Prefixes per ASN: 4.75
RIPE Region origin ASes announcing only one prefix: 7714
RIPE Region transit ASes present in the Internet Routing Table: 2305
Average RIPE Region AS path length visible: 4.4
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 444162560
Equivalent to 26 /8s, 121 /16s and 98 /24s
Percentage of available RIPE address space announced: 77.9
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: 31406
Total LACNIC prefixes after maximum aggregation: 7357
LACNIC Deaggregation factor: 4.27
Prefixes being announced from the LACNIC address blocks: 30044
Unique aggregates announced from the LACNIC address blocks: 15310
LACNIC Region origin ASes present in the Internet Routing Table: 1390
LACNIC Prefixes per ASN: 21.61
LACNIC Region origin ASes announcing only one prefix: 435
LACNIC Region transit ASes present in the Internet Routing Table: 245
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 76966400
Equivalent to 4 /8s, 150 /16s and 106 /24s
Percentage of available LACNIC address space announced: 57.3
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: 7605
Total AfriNIC prefixes after maximum aggregation: 1885
AfriNIC Deaggregation factor: 4.03
Prefixes being announced from the AfriNIC address blocks: 5887
Unique aggregates announced from the AfriNIC address blocks: 1748
AfriNIC Region origin ASes present in the Internet Routing Table: 413
AfriNIC Prefixes per ASN: 14.25
AfriNIC Region origin ASes announcing only one prefix: 128
AfriNIC Region transit ASes present in the Internet Routing Table: 91
Average AfriNIC Region AS path length visible: 5.2
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21490688
Equivalent to 1 /8s, 71 /16s and 236 /24s
Percentage of available AfriNIC address space announced: 64.0
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 1865 9469 516 Korea Telecom (KIX)
7545 1436 299 79 TPG Internet Pty Ltd
4755 1384 383 158 TATA Communications formerly
17488 1360 156 121 Hathway IP Over Cable Interne
17974 1297 306 95 PT TELEKOMUNIKASI INDONESIA
24560 1056 309 168 Bharti Airtel Ltd., Telemedia
9583 1028 75 487 Sify Limited
4808 979 1722 267 CNCGROUP IP network: China169
18101 905 116 138 Reliance Infocom Ltd Internet
9829 826 694 27 BSNL National Internet Backbo
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 3752 3922 277 bellsouth.net, inc.
4323 2660 1106 397 Time Warner Telecom
1785 1796 697 130 PaeTec Communications, Inc.
19262 1781 4864 282 Verizon Global Networks
20115 1508 1530 645 Charter Communications
7018 1410 5660 902 AT&T WorldNet Services
6478 1392 280 137 AT&T Worldnet Services
2386 1305 555 926 AT&T Data Communications Serv
11492 1256 233 72 Cable One
22773 1243 2859 62 Cox Communications, Inc.
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
3292 447 2027 389 TDC Tele Danmark
8866 435 133 25 Bulgarian Telecommunication C
8551 401 353 46 Bezeq International
34984 397 92 191 BILISIM TELEKOM
702 396 1865 310 UUNET - Commercial IP service
3301 380 1688 334 TeliaNet Sweden
3320 378 7332 331 Deutsche Telekom AG
12479 375 576 5 Uni2 Autonomous System
30890 375 80 208 Evolva Telecom
31148 353 18 85 FreeNet ISP
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
6503 1998 277 365 AVANTEL, S.A.
8151 1336 2610 376 UniNet S.A. de C.V.
10620 1333 249 154 TVCABLE BOGOTA
28573 1181 928 84 NET Servicos de Comunicao S.A
7303 827 440 105 Telecom Argentina Stet-France
14420 571 48 76 CORPORACION NACIONAL DE TELEC
22047 563 310 15 VTR PUNTO NET S.A.
3816 487 212 95 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 452 32 29 Telefonica del Sur S.A.
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 1065 445 10 TEDATA
24863 741 147 39 LINKdotNET AS number
36992 650 278 158 Etisalat MISR
3741 264 907 226 The Internet Solution
24835 204 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
29571 202 19 11 Ci Telecom Autonomous system
2018 197 277 64 Tertiary Education Network
33776 195 12 14 Starcomms Nigeria Limited
16637 154 441 91 MTN Network Solutions
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 3752 3922 277 bellsouth.net, inc.
4323 2660 1106 397 Time Warner Telecom
6503 1998 277 365 AVANTEL, S.A.
4766 1865 9469 516 Korea Telecom (KIX)
1785 1796 697 130 PaeTec Communications, Inc.
19262 1781 4864 282 Verizon Global Networks
20115 1508 1530 645 Charter Communications
7545 1436 299 79 TPG Internet Pty Ltd
7018 1410 5660 902 AT&T WorldNet Services
6478 1392 280 137 AT&T Worldnet Services
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2660 2263 Time Warner Telecom
1785 1796 1666 PaeTec Communications, Inc.
6503 1998 1633 AVANTEL, S.A.
19262 1781 1499 Verizon Global Networks
7545 1436 1357 TPG Internet Pty Ltd
4766 1865 1349 Korea Telecom (KIX)
6478 1392 1255 AT&T Worldnet Services
17488 1360 1239 Hathway IP Over Cable Interne
4755 1384 1226 TATA Communications formerly
17974 1297 1202 PT TELEKOMUNIKASI INDONESIA
Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.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<<
41.223.92.0/22 36936 >>UNKNOWN<<
46.148.128.0/20 44056 Trytech Ltd.
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
64.21.192.0/20 11610 Internet Nebraska Corporation
64.21.212.0/22 11610 Internet Nebraska Corporation
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 /9:10 /10:25 /11:69 /12:207
/13:422 /14:747 /15:1352 /16:11407 /17:5583 /18:9345
/19:18599 /20:23974 /21:24005 /22:31701 /23:30532 /24:176629
/25:986 /26:1102 /27:586 /28:154 /29:12 /30:2
/31:0 /32:7
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2316 3752 bellsouth.net, inc.
6503 1749 1998 AVANTEL, S.A.
4323 1431 2660 Time Warner Telecom
6478 1353 1392 AT&T Worldnet Services
10620 1225 1333 TVCABLE BOGOTA
11492 1213 1256 Cable One
1785 1075 1796 PaeTec Communications, Inc.
18566 1072 1091 Covad Communications
7011 1058 1159 Citizens Utilities
8452 966 1065 TEDATA
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:100 2:13 4:13 8:313 12:2016 13:8
14:60 15:18 16:3 17:8 20:9 24:1418
27:441 31:1 32:61 33:9 34:2 38:716
40:101 41:2612 44:3 46:260 47:10 49:14
50:6 52:12 55:7 56:2 57:29 58:848
59:500 60:496 61:1136 62:1006 63:1959 64:3738
65:2329 66:4079 67:1829 68:1130 69:2889 70:752
71:374 72:1935 73:2 74:2316 75:292 76:326
77:853 78:669 79:430 80:1048 81:798 82:506
83:466 84:681 85:1014 86:483 87:698 88:331
89:1567 90:116 91:3177 92:449 93:997 94:1129
95:715 96:402 97:226 98:627 99:33 101:3
107:1 108:64 109:745 110:417 111:645 112:313
113:316 114:475 115:608 116:1131 117:662 118:571
119:1014 120:166 121:709 122:1604 123:979 124:1235
125:1271 128:228 129:152 130:168 131:553 132:246
133:20 134:207 135:46 136:211 137:141 138:283
139:109 140:471 141:196 142:347 143:354 144:501
145:55 146:426 147:179 148:671 149:326 150:146
151:231 152:290 153:174 154:3 155:364 156:166
157:339 158:114 159:367 160:313 161:198 162:275
163:166 164:430 165:349 166:468 167:428 168:700
169:155 170:719 171:63 172:2 173:1089 174:411
175:261 176:1 178:618 180:693 182:252 183:246
184:182 186:805 187:859 188:884 189:1565 190:4197
192:5768 193:4772 194:3443 195:2858 196:1209 198:3533
199:3642 200:5490 201:1641 202:8218 203:8289 204:4044
205:2336 206:2569 207:3022 208:3885 209:3458 210:2553
211:1299 212:1807 213:1718 214:696 215:66 216:4761
217:1595 218:544 219:400 220:1221 221:421 222:342
223:71
End of report
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