[afnog] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Nov 5 18:27:50 UTC 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 06 Nov, 2010
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 335410
Prefixes after maximum aggregation: 153270
Deaggregation factor: 2.19
Unique aggregates announced to Internet: 164621
Total ASes present in the Internet Routing Table: 35162
Prefixes per ASN: 9.54
Origin-only ASes present in the Internet Routing Table: 30330
Origin ASes announcing only one prefix: 14792
Transit ASes present in the Internet Routing Table: 4832
Transit-only ASes present in the Internet Routing Table: 116
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 30
Max AS path prepend of ASN (41664) 21
Prefixes from unregistered ASNs in the Routing Table: 299
Unregistered ASNs in the Routing Table: 127
Number of 32-bit ASNs allocated by the RIRs: 867
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: 194
Number of addresses announced to Internet: 2328157088
Equivalent to 138 /8s, 196 /16s and 219 /24s
Percentage of available address space announced: 62.8
Percentage of allocated address space announced: 66.4
Percentage of available address space allocated: 94.6
Percentage of address space in use by end-sites: 85.8
Total number of prefixes smaller than registry allocations: 137579
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 82365
Total APNIC prefixes after maximum aggregation: 28058
APNIC Deaggregation factor: 2.94
Prefixes being announced from the APNIC address blocks: 79257
Unique aggregates announced from the APNIC address blocks: 34526
APNIC Region origin ASes present in the Internet Routing Table: 4225
APNIC Prefixes per ASN: 18.76
APNIC Region origin ASes announcing only one prefix: 1176
APNIC Region transit ASes present in the Internet Routing Table: 677
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 560267808
Equivalent to 33 /8s, 101 /16s and 2 /24s
Percentage of available APNIC address space announced: 75.9
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: 137613
Total ARIN prefixes after maximum aggregation: 71343
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 108974
Unique aggregates announced from the ARIN address blocks: 43620
ARIN Region origin ASes present in the Internet Routing Table: 14020
ARIN Prefixes per ASN: 7.77
ARIN Region origin ASes announcing only one prefix: 5368
ARIN Region transit ASes present in the Internet Routing Table: 1482
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 739981824
Equivalent to 44 /8s, 27 /16s and 58 /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: 77520
Total RIPE prefixes after maximum aggregation: 44665
RIPE Deaggregation factor: 1.74
Prefixes being announced from the RIPE address blocks: 71009
Unique aggregates announced from the RIPE address blocks: 46311
RIPE Region origin ASes present in the Internet Routing Table: 14943
RIPE Prefixes per ASN: 4.75
RIPE Region origin ASes announcing only one prefix: 7688
RIPE Region transit ASes present in the Internet Routing Table: 2300
Average RIPE Region AS path length visible: 4.4
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 443477760
Equivalent to 26 /8s, 110 /16s and 239 /24s
Percentage of available RIPE address space announced: 77.7
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: 30074
Total LACNIC prefixes after maximum aggregation: 7209
LACNIC Deaggregation factor: 4.17
Prefixes being announced from the LACNIC address blocks: 28751
Unique aggregates announced from the LACNIC address blocks: 15206
LACNIC Region origin ASes present in the Internet Routing Table: 1378
LACNIC Prefixes per ASN: 20.86
LACNIC Region origin ASes announcing only one prefix: 429
LACNIC Region transit ASes present in the Internet Routing Table: 238
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 26
Number of LACNIC addresses announced to Internet: 76695296
Equivalent to 4 /8s, 146 /16s and 71 /24s
Percentage of available LACNIC address space announced: 57.1
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: 7608
Total AfriNIC prefixes after maximum aggregation: 1876
AfriNIC Deaggregation factor: 4.06
Prefixes being announced from the AfriNIC address blocks: 5911
Unique aggregates announced from the AfriNIC address blocks: 1715
AfriNIC Region origin ASes present in the Internet Routing Table: 416
AfriNIC Prefixes per ASN: 14.21
AfriNIC Region origin ASes announcing only one prefix: 131
AfriNIC Region transit ASes present in the Internet Routing Table: 90
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 21
Number of AfriNIC addresses announced to Internet: 21476608
Equivalent to 1 /8s, 71 /16s and 181 /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 1858 9453 512 Korea Telecom (KIX)
7545 1420 299 77 TPG Internet Pty Ltd
4755 1381 379 158 TATA Communications formerly
17488 1364 156 121 Hathway IP Over Cable Interne
17974 1282 304 89 PT TELEKOMUNIKASI INDONESIA
24560 1055 309 173 Bharti Airtel Ltd., Telemedia
9583 1032 76 491 Sify Limited
4808 978 1721 266 CNCGROUP IP network: China169
18101 897 116 135 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 3761 3922 279 bellsouth.net, inc.
4323 2652 1105 397 Time Warner Telecom
1785 1794 698 130 PaeTec Communications, Inc.
19262 1779 4836 281 Verizon Global Networks
20115 1505 1528 642 Charter Communications
7018 1412 5660 903 AT&T WorldNet Services
6478 1395 280 111 AT&T Worldnet Services
2386 1307 555 925 AT&T Data Communications Serv
11492 1251 232 65 Cable One
22773 1227 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 446 2028 390 TDC Tele Danmark
8866 435 133 25 Bulgarian Telecommunication C
8551 402 353 46 Bezeq International
702 397 1866 311 UUNET - Commercial IP service
34984 382 91 189 BILISIM TELEKOM
3320 378 7332 331 Deutsche Telekom AG
3301 377 1688 334 TeliaNet Sweden
30890 377 95 123 Evolva Telecom
12479 370 576 5 Uni2 Autonomous System
31148 349 18 83 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
10620 1333 249 154 TVCABLE BOGOTA
8151 1331 2599 368 UniNet S.A. de C.V.
28573 1183 928 84 NET Servicos de Comunicao S.A
7303 830 441 107 Telecom Argentina Stet-France
6503 806 225 258 AVANTEL, S.A.
22047 565 310 15 VTR PUNTO NET S.A.
14420 559 44 74 CORPORACION NACIONAL DE TELEC
3816 487 212 96 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 453 32 28 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 1114 445 10 TEDATA
24863 741 147 39 LINKdotNET AS number
36992 648 277 159 Etisalat MISR
3741 263 907 225 The Internet Solution
24835 206 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
29571 203 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 3761 3922 279 bellsouth.net, inc.
4323 2652 1105 397 Time Warner Telecom
4766 1858 9453 512 Korea Telecom (KIX)
1785 1794 698 130 PaeTec Communications, Inc.
19262 1779 4836 281 Verizon Global Networks
20115 1505 1528 642 Charter Communications
7545 1420 299 77 TPG Internet Pty Ltd
7018 1412 5660 903 AT&T WorldNet Services
6478 1395 280 111 AT&T Worldnet Services
4755 1381 379 158 TATA Communications formerly
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 2652 2255 Time Warner Telecom
1785 1794 1664 PaeTec Communications, Inc.
19262 1779 1498 Verizon Global Networks
4766 1858 1346 Korea Telecom (KIX)
7545 1420 1343 TPG Internet Pty Ltd
6478 1395 1284 AT&T Worldnet Services
17488 1364 1243 Hathway IP Over Cable Interne
4755 1381 1223 TATA Communications formerly
17974 1282 1193 PT TELEKOMUNIKASI INDONESIA
11492 1251 1186 Cable One
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
36.0.0.0/8 38639 NTT Communications Corporatio
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
42.0.0.0/8 38639 NTT Communications Corporatio
46.21.144.0/20 35017 Neoworld Ltd. Autonomous Syst
46.21.156.0/22 35017 Neoworld Ltd. Autonomous Syst
46.148.64.0/20 35491 TPNETS
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 /8:21 /9:10 /10:25 /11:68 /12:206
/13:421 /14:746 /15:1347 /16:11386 /17:5572 /18:9338
/19:18553 /20:23931 /21:23896 /22:31584 /23:30514 /24:174963
/25:975 /26:1098 /27:582 /28:153 /29:12 /30:2
/31:0 /32:7
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2324 3761 bellsouth.net, inc.
4323 1425 2652 Time Warner Telecom
6478 1356 1395 AT&T Worldnet Services
10620 1225 1333 TVCABLE BOGOTA
11492 1208 1251 Cable One
1785 1074 1794 PaeTec Communications, Inc.
18566 1071 1090 Covad Communications
7011 1058 1159 Citizens Utilities
8452 1012 1114 TEDATA
19262 903 1779 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:93 2:13 4:13 8:313 12:2008 13:8
14:55 15:18 16:3 17:8 20:9 24:1415
27:424 31:1 32:61 33:10 38:716 40:101
41:2628 44:3 46:246 47:10 49:4 50:6
52:12 55:6 56:2 57:29 58:837 59:480
60:496 61:1137 62:1014 63:1965 64:3752 65:2332
66:4078 67:1821 68:1121 69:2890 70:754 71:374
72:1897 73:2 74:2330 75:289 76:324 77:855
78:669 79:448 80:1059 81:796 82:500 83:465
84:683 85:1017 86:478 87:698 88:331 89:1573
90:113 91:3148 92:445 93:987 94:1120 95:705
96:399 97:225 98:629 99:33 101:3 107:1
108:64 109:739 110:412 111:618 112:314 113:312
114:474 115:616 116:1131 117:660 118:564 119:1001
120:136 121:709 122:1609 123:970 124:1226 125:1271
128:229 129:150 130:166 131:556 132:278 133:20
134:207 135:46 136:210 137:142 138:281 139:110
140:473 141:197 142:348 143:358 144:493 145:55
146:427 147:184 148:621 149:323 150:146 151:231
152:291 153:174 154:3 155:364 156:163 157:338
158:114 159:365 160:313 161:199 162:275 163:164
164:427 165:349 166:469 167:426 168:684 169:155
170:719 171:63 172:2 173:1085 174:407 175:241
176:1 178:599 180:684 182:246 183:243 184:164
186:755 187:587 188:879 189:808 190:4177 192:5768
193:4768 194:3450 195:2841 196:1200 198:3537 199:3638
200:5411 201:1585 202:8208 203:8280 204:4032 205:2336
206:2566 207:3020 208:3887 209:3458 210:2550 211:1289
212:1813 213:1723 214:699 215:66 216:4751 217:1583
218:547 219:400 220:1227 221:421 222:343 223:68
End of report
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