[lacnog] Weekly Routing Table Report
Routing Analysis Role Account
cscora en apnic.net
Vie Feb 4 16:27:07 BRST 2011
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.rand.apnic.net.
If you have any comments please contact Philip Smith <pfs en cisco.com>.
Routing Table Report 04:00 +10GMT Sat 05 Feb, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 344448
Prefixes after maximum aggregation: 155332
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 170039
Total ASes present in the Internet Routing Table: 35787
Prefixes per ASN: 9.62
Origin-only ASes present in the Internet Routing Table: 30852
Origin ASes announcing only one prefix: 14951
Transit ASes present in the Internet Routing Table: 4935
Transit-only ASes present in the Internet Routing Table: 119
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: 397
Unregistered ASNs in the Routing Table: 129
Number of 32-bit ASNs allocated by the RIRs: 1077
Prefixes from 32-bit ASNs in the Routing Table: 1
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 203
Number of addresses announced to Internet: 2380656448
Equivalent to 141 /8s, 229 /16s and 239 /24s
Percentage of available address space announced: 64.2
Percentage of allocated address space announced: 65.7
Percentage of available address space allocated: 97.7
Percentage of address space in use by end-sites: 88.1
Total number of prefixes smaller than registry allocations: 142101
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85206
Total APNIC prefixes after maximum aggregation: 28888
APNIC Deaggregation factor: 2.95
Prefixes being announced from the APNIC address blocks: 81892
Unique aggregates announced from the APNIC address blocks: 35574
APNIC Region origin ASes present in the Internet Routing Table: 4314
APNIC Prefixes per ASN: 18.98
APNIC Region origin ASes announcing only one prefix: 1208
APNIC Region transit ASes present in the Internet Routing Table: 687
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 586924320
Equivalent to 34 /8s, 251 /16s and 193 /24s
Percentage of available APNIC address space announced: 76.1
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, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 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: 138523
Total ARIN prefixes after maximum aggregation: 70948
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 109351
Unique aggregates announced from the ARIN address blocks: 44581
ARIN Region origin ASes present in the Internet Routing Table: 14172
ARIN Prefixes per ASN: 7.72
ARIN Region origin ASes announcing only one prefix: 5410
ARIN Region transit ASes present in the Internet Routing Table: 1468
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 751911808
Equivalent to 44 /8s, 209 /16s and 67 /24s
Percentage of available ARIN address space announced: 63.1
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, 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, 100/8,
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: 81469
Total RIPE prefixes after maximum aggregation: 46272
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 74776
Unique aggregates announced from the RIPE address blocks: 48554
RIPE Region origin ASes present in the Internet Routing Table: 15262
RIPE Prefixes per ASN: 4.90
RIPE Region origin ASes announcing only one prefix: 7770
RIPE Region transit ASes present in the Internet Routing Table: 2373
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 457667392
Equivalent to 27 /8s, 71 /16s and 115 /24s
Percentage of available RIPE address space announced: 75.8
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, 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, 193/8, 194/8, 195/8, 212/8, 213/8,
217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 31580
Total LACNIC prefixes after maximum aggregation: 7273
LACNIC Deaggregation factor: 4.34
Prefixes being announced from the LACNIC address blocks: 30338
Unique aggregates announced from the LACNIC address blocks: 15849
LACNIC Region origin ASes present in the Internet Routing Table: 1424
LACNIC Prefixes per ASN: 21.30
LACNIC Region origin ASes announcing only one prefix: 430
LACNIC Region transit ASes present in the Internet Routing Table: 250
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 80422528
Equivalent to 4 /8s, 203 /16s and 38 /24s
Percentage of available LACNIC address space announced: 59.9
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: 7450
Total AfriNIC prefixes after maximum aggregation: 1839
AfriNIC Deaggregation factor: 4.05
Prefixes being announced from the AfriNIC address blocks: 5872
Unique aggregates announced from the AfriNIC address blocks: 1790
AfriNIC Region origin ASes present in the Internet Routing Table: 436
AfriNIC Prefixes per ASN: 13.47
AfriNIC Region origin ASes announcing only one prefix: 132
AfriNIC Region transit ASes present in the Internet Routing Table: 96
Average AfriNIC Region AS path length visible: 5.3
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21818624
Equivalent to 1 /8s, 76 /16s and 237 /24s
Percentage of available AfriNIC address space announced: 43.3
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1914 9485 525 Korea Telecom (KIX)
7545 1619 301 84 TPG Internet Pty Ltd
4755 1409 637 161 TATA Communications formerly
17974 1391 467 27 PT TELEKOMUNIKASI INDONESIA
24560 1099 318 182 Bharti Airtel Ltd., Telemedia
9583 1044 76 490 Sify Limited
4808 1034 2130 292 CNCGROUP IP network: China169
17488 952 162 104 Hathway IP Over Cable Interne
18101 928 117 144 Reliance Infocom Ltd Internet
9829 895 762 41 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 3704 3855 265 bellsouth.net, inc.
4323 2622 1109 403 Time Warner Telecom
19262 1842 4949 287 Verizon Global Networks
1785 1784 697 132 PaeTec Communications, Inc.
20115 1522 1532 642 Charter Communications
6478 1482 291 81 AT&T Worldnet Services
7018 1353 6673 871 AT&T WorldNet Services
2386 1295 553 933 AT&T Data Communications Serv
22773 1278 2865 78 Cox Communications, Inc.
11492 1264 235 79 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
6830 515 1764 319 UPC Distribution Services
9198 464 266 14 Kazakhtelecom Data Network Ad
34984 458 97 137 BILISIM TELEKOM
3292 447 2011 390 TDC Tele Danmark
8866 440 133 23 Bulgarian Telecommunication C
3320 407 7620 355 Deutsche Telekom AG
8551 403 353 46 Bezeq International
702 397 1817 310 UUNET - Commercial IP service
20940 387 89 296 Akamai Technologies European
3301 382 1822 340 TeliaNet Sweden
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 1357 252 162 TVCABLE BOGOTA
8151 1332 2647 359 UniNet S.A. de C.V.
28573 1238 961 82 NET Servicos de Comunicao S.A
6503 1187 355 78 AVANTEL, S.A.
7303 882 461 112 Telecom Argentina Stet-France
14420 625 56 93 CORPORACION NACIONAL DE TELEC
22047 548 310 15 VTR PUNTO NET S.A.
3816 500 220 94 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 456 34 31 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 800 445 11 TEDATA
24863 761 147 39 LINKdotNET AS number
36992 635 329 19 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 217 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
33776 194 12 15 Starcomms Nigeria Limited
29571 192 17 11 Ci Telecom Autonomous system
16637 146 422 83 MTN Network Solutions
29975 132 490 17 Vodacom
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 3704 3855 265 bellsouth.net, inc.
4323 2622 1109 403 Time Warner Telecom
4766 1914 9485 525 Korea Telecom (KIX)
19262 1842 4949 287 Verizon Global Networks
1785 1784 697 132 PaeTec Communications, Inc.
7545 1619 301 84 TPG Internet Pty Ltd
20115 1522 1532 642 Charter Communications
6478 1482 291 81 AT&T Worldnet Services
4755 1409 637 161 TATA Communications formerly
17974 1391 467 27 PT TELEKOMUNIKASI INDONESIA
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 2622 2219 Time Warner Telecom
1785 1784 1652 PaeTec Communications, Inc.
19262 1842 1555 Verizon Global Networks
7545 1619 1535 TPG Internet Pty Ltd
6478 1482 1401 AT&T Worldnet Services
4766 1914 1389 Korea Telecom (KIX)
17974 1391 1364 PT TELEKOMUNIKASI INDONESIA
4755 1409 1248 TATA Communications formerly
22773 1278 1200 Cox Communications, Inc.
10620 1357 1195 TVCABLE BOGOTA
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
5.0.0.0/16 12654 RIPE NCC RIS Project
5.1.0.0/21 12654 RIPE NCC RIS Project
5.1.24.0/24 12654 RIPE NCC RIS Project
24.129.192.0/19 7922 Continental Cablevision
37.0.0.0/16 12654 RIPE NCC RIS Project
37.1.0.0/21 12654 RIPE NCC RIS Project
37.1.24.0/24 12654 RIPE NCC RIS Project
41.78.192.0/22 30999 Emtel is GSM, 3G and ISP in M
41.78.228.0/22 5713 Telkom SA Ltd
41.222.79.0/24 36938 >>UNKNOWN<<
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 /9:11 /10:26 /11:72 /12:221
/13:445 /14:772 /15:1371 /16:11547 /17:5632 /18:9292
/19:18815 /20:24292 /21:24666 /22:32814 /23:31471 /24:180138
/25:995 /26:1072 /27:587 /28:163 /29:16 /30:3
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2283 3704 bellsouth.net, inc.
6478 1436 1482 AT&T Worldnet Services
4323 1412 2622 Time Warner Telecom
10620 1248 1357 TVCABLE BOGOTA
11492 1221 1264 Cable One
18566 1160 1182 Covad Communications
7011 1063 1164 Citizens Utilities
1785 1053 1784 PaeTec Communications, Inc.
6503 963 1187 AVANTEL, S.A.
19262 954 1842 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:169 2:39 4:13 5:1 8:334 12:2027
13:1 14:396 15:15 16:3 17:8 20:9
23:1 24:1465 27:570 32:61 33:5 34:2
37:1 38:695 40:101 41:2326 44:3 46:563
47:5 49:143 50:84 52:12 55:5 56:2
57:31 58:866 59:483 60:391 61:1116 62:1065
63:1919 64:3753 65:2358 66:4116 67:1760 68:1004
69:2878 70:717 71:397 72:1992 73:1 74:2322
75:293 76:329 77:848 78:702 79:440 80:1044
81:808 82:534 83:473 84:645 85:1046 86:533
87:732 88:356 89:1584 90:157 91:3458 92:494
93:1038 94:1195 95:791 96:416 97:250 98:759
99:33 101:23 107:3 108:82 109:863 110:472
111:693 112:312 113:354 114:495 115:641 116:922
117:676 118:649 119:1020 120:240 121:698 122:1612
123:1053 124:1269 125:1216 128:264 129:152 130:172
131:567 132:110 133:20 134:217 135:49 136:216
137:147 138:290 139:120 140:490 141:196 142:362
143:376 144:483 145:51 146:425 147:193 148:626
149:273 150:151 151:230 152:306 153:177 154:3
155:347 156:173 157:342 158:128 159:380 160:315
161:205 162:278 163:159 164:486 165:338 166:481
167:420 168:741 169:152 170:750 171:66 172:2
173:1275 174:521 175:314 176:1 177:12 178:752
180:778 182:340 183:250 184:208 186:988 187:790
188:912 189:1053 190:4357 192:5785 193:4800 194:3500
195:2946 196:1176 197:3 198:3579 199:3755 200:5592
201:1579 202:8263 203:8417 204:4097 205:2341 206:2632
207:3083 208:3884 209:3499 210:2641 211:1332 212:1859
213:1717 214:757 215:62 216:4796 217:1615 218:528
219:376 220:1202 221:449 222:319 223:95
End of report
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