[afnog] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Aug 6 18:11:58 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.apnic.net.
If you have any comments please contact Philip Smith <pfs at cisco.com>.
Routing Table Report 04:00 +10GMT Sat 07 Aug, 2010
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 327570
Prefixes after maximum aggregation: 150699
Deaggregation factor: 2.17
Unique aggregates announced to Internet: 160252
Total ASes present in the Internet Routing Table: 34482
Prefixes per ASN: 9.50
Origin-only ASes present in the Internet Routing Table: 29935
Origin ASes announcing only one prefix: 14513
Transit ASes present in the Internet Routing Table: 4547
Transit-only ASes present in the Internet Routing Table: 99
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN (41664) 21
Prefixes from unregistered ASNs in the Routing Table: 486
Unregistered ASNs in the Routing Table: 210
Number of 32-bit ASNs allocated by the RIRs: 155
Prefixes from 32-bit ASNs in the Routing Table: 893
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 61843
Number of addresses announced to Internet: 2251423360
Equivalent to 134 /8s, 49 /16s and 254 /24s
Percentage of available address space announced: 60.7
Percentage of allocated address space announced: 65.5
Percentage of available address space allocated: 92.8
Percentage of address space in use by end-sites: 69.2
Total number of prefixes smaller than registry allocations: 132801
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 79486
Total APNIC prefixes after maximum aggregation: 27320
APNIC Deaggregation factor: 2.91
Prefixes being announced from the APNIC address blocks: 76404
Unique aggregates announced from the APNIC address blocks: 33692
APNIC Region origin ASes present in the Internet Routing Table: 4152
APNIC Prefixes per ASN: 18.40
APNIC Region origin ASes announcing only one prefix: 1160
APNIC Region transit ASes present in the Internet Routing Table: 635
Average APNIC Region AS path length visible: 3.7
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 538001952
Equivalent to 32 /8s, 17 /16s and 66 /24s
Percentage of available APNIC address space announced: 80.2
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, 58/8, 59/8, 60/8,
61/8, 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: 134936
Total ARIN prefixes after maximum aggregation: 69682
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 107823
Unique aggregates announced from the ARIN address blocks: 42279
ARIN Region origin ASes present in the Internet Routing Table: 13814
ARIN Prefixes per ASN: 7.81
ARIN Region origin ASes announcing only one prefix: 5292
ARIN Region transit ASes present in the Internet Routing Table: 1355
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 730821152
Equivalent to 43 /8s, 143 /16s and 114 /24s
Percentage of available ARIN address space announced: 62.2
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, 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: 75200
Total RIPE prefixes after maximum aggregation: 43599
RIPE Deaggregation factor: 1.72
Prefixes being announced from the RIPE address blocks: 6738
Unique aggregates announced from the RIPE address blocks: 3805
RIPE Region origin ASes present in the Internet Routing Table: 14634
RIPE Prefixes per ASN: 0.46
RIPE Region origin ASes announcing only one prefix: 7528
RIPE Region transit ASes present in the Internet Routing Table: 2193
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 24
Number of RIPE addresses announced to Internet: 64040704
Equivalent to 3 /8s, 209 /16s and 47 /24s
Percentage of available RIPE address space announced: 11.2
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: 29487
Total LACNIC prefixes after maximum aggregation: 7006
LACNIC Deaggregation factor: 4.21
Prefixes being announced from the LACNIC address blocks: 27982
Unique aggregates announced from the LACNIC address blocks: 14984
LACNIC Region origin ASes present in the Internet Routing Table: 1322
LACNIC Prefixes per ASN: 21.17
LACNIC Region origin ASes announcing only one prefix: 410
LACNIC Region transit ASes present in the Internet Routing Table: 235
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 76265984
Equivalent to 4 /8s, 139 /16s and 186 /24s
Percentage of available LACNIC address space announced: 56.8
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: 7316
Total AfriNIC prefixes after maximum aggregation: 1874
AfriNIC Deaggregation factor: 3.90
Prefixes being announced from the AfriNIC address blocks: 5640
Unique aggregates announced from the AfriNIC address blocks: 1653
AfriNIC Region origin ASes present in the Internet Routing Table: 390
AfriNIC Prefixes per ASN: 14.46
AfriNIC Region origin ASes announcing only one prefix: 123
AfriNIC Region transit ASes present in the Internet Routing Table: 85
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 19917568
Equivalent to 1 /8s, 47 /16s and 235 /24s
Percentage of available AfriNIC address space announced: 59.4
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 1857 8409 490 Korea Telecom (KIX)
4755 1479 298 162 TATA Communications formerly
7545 1374 234 87 TPG Internet Pty Ltd
17488 1343 149 127 Hathway IP Over Cable Interne
17974 1188 288 64 PT TELEKOMUNIKASI INDONESIA
9583 1004 74 487 Sify Limited
24560 997 303 182 Bharti Airtel Ltd., Telemedia
4808 900 1670 244 CNCGROUP IP network: China169
9829 817 686 33 BSNL National Internet Backbo
4134 786 22092 414 CHINANET-BACKBONE
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 3867 3716 281 bellsouth.net, inc.
4323 2732 1100 394 Time Warner Telecom
19262 1944 4597 278 Verizon Global Networks
1785 1786 698 128 PaeTec Communications, Inc.
20115 1491 1526 652 Charter Communications
7018 1476 5733 949 AT&T WorldNet Services
2386 1277 553 902 AT&T Data Communications Serv
6478 1274 254 155 AT&T Worldnet Services
22773 1177 2858 61 Cox Communications, Inc.
3356 1164 10876 397 Level 3 Communications, LLC
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
35805 656 56 6 United Telecom of Georgia
9198 499 202 13 Kazakhtelecom Data Network Ad
3292 449 2026 390 TDC Tele Danmark
30890 444 111 206 Evolva Telecom
702 414 1870 326 UUNET - Commercial IP service
8866 403 117 18 Bulgarian Telecommunication C
8551 401 353 46 Bezeq International
3320 374 7328 325 Deutsche Telekom AG
3301 372 1414 327 TeliaNet Sweden
34984 365 89 183 BILISIM TELEKOM
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 1527 3049 248 UniNet S.A. de C.V.
10620 1089 244 149 TVCABLE BOGOTA
28573 1020 818 100 NET Servicos de Comunicao S.A
7303 786 408 101 Telecom Argentina Stet-France
6503 720 178 222 AVANTEL, S.A.
22047 553 310 15 VTR PUNTO NET S.A.
14420 536 34 75 CORPORACION NACIONAL DE TELEC
7738 477 922 30 Telecomunicacoes da Bahia S.A
3816 475 197 95 Empresa Nacional de Telecomun
11172 447 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 1169 445 10 TEDATA
24863 726 147 39 LINKdotNET AS number
36992 647 278 187 Etisalat MISR
3741 270 898 232 The Internet Solution
33776 206 12 12 Starcomms Nigeria Limited
2018 197 277 64 Tertiary Education Network
6713 195 186 16 Itissalat Al-MAGHRIB
29571 192 19 11 Ci Telecom Autonomous system
24835 189 78 9 RAYA Telecom - Egypt
16637 140 440 95 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 3867 3716 281 bellsouth.net, inc.
4323 2732 1100 394 Time Warner Telecom
19262 1944 4597 278 Verizon Global Networks
4766 1857 8409 490 Korea Telecom (KIX)
1785 1786 698 128 PaeTec Communications, Inc.
8151 1527 3049 248 UniNet S.A. de C.V.
20115 1491 1526 652 Charter Communications
4755 1479 298 162 TATA Communications formerly
7018 1476 5733 949 AT&T WorldNet Services
7545 1374 234 87 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 2732 2338 Time Warner Telecom
19262 1944 1666 Verizon Global Networks
1785 1786 1658 PaeTec Communications, Inc.
4766 1857 1367 Korea Telecom (KIX)
4755 1479 1317 TATA Communications formerly
7545 1374 1287 TPG Internet Pty Ltd
8151 1527 1279 UniNet S.A. de C.V.
17488 1343 1216 Hathway IP Over Cable Interne
8452 1169 1159 TEDATA
17974 1188 1124 PT TELEKOMUNIKASI INDONESIA
Complete listing at http://thyme.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 7018 AT&T WorldNet Servic
36178 UNALLOCATED 12.20.60.0/23 6128 Cablevision Systems
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 7018 AT&T WorldNet Servic
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
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<<
41.223.92.0/22 36936 >>UNKNOWN<<
41.223.188.0/24 22351 Intelsat
41.223.189.0/24 6453 Teleglobe Inc.
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
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 /12:198
/13:410 /14:717 /15:1299 /16:11183 /17:5376 /18:9216
/19:18523 /20:23234 /21:23225 /22:30226 /23:29701 /24:170990
/25:1048 /26:1192 /27:733 /28:118 /29:47 /30:6
/31:0 /32:7
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2471 3867 bellsouth.net, inc.
4766 1486 1857 Korea Telecom (KIX)
4323 1394 2732 Time Warner Telecom
1785 1245 1786 PaeTec Communications, Inc.
17488 1086 1343 Hathway IP Over Cable Interne
18566 1068 1087 Covad Communications
8452 1057 1169 TEDATA
11492 1048 1139 Cable One
10620 1003 1089 TVCABLE BOGOTA
19262 913 1944 Verizon Global Networks
Complete listing at http://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:39 2:2 4:13 8:293 12:2014 13:7
14:1 15:21 16:3 17:9 20:6 24:1433
27:277 31:1 32:59 33:22 38:688 40:98
41:2474 44:3 46:20 47:16 52:9 55:7
56:2 57:28 58:779 59:509 60:462 61:1069
62:1035 63:1968 64:3721 65:2336 66:4038 67:1827
68:1098 69:2760 70:741 71:444 72:1939 73:2
74:2302 75:253 76:324 77:906 78:619 79:435
80:986 81:778 82:505 83:452 84:694 85:1045
86:461 87:688 88:332 89:1557 90:97 91:2914
92:513 93:1006 94:1415 95:671 96:530 97:212
98:625 99:33 108:105 109:601 110:432 111:532
112:273 113:315 114:434 115:567 116:1092 117:653
118:482 119:899 120:137 121:724 122:1519 123:952
124:1128 125:1242 128:226 129:162 130:198 131:555
132:247 133:16 134:196 135:45 136:240 137:136
138:267 139:104 140:480 141:197 142:341 143:376
144:472 145:52 146:433 147:172 148:676 149:269
150:145 151:228 152:297 153:168 154:3 155:357
156:160 157:325 158:111 159:361 160:314 161:183
162:256 163:174 164:411 165:366 166:463 167:412
168:646 169:157 170:721 171:59 172:2 173:961
174:530 175:168 176:1 178:351 180:508 182:169
183:239 184:140 186:542 187:412 188:1045 189:737
190:3878 192:5753 193:4727 194:3401 195:2823 196:1179
198:3565 199:3513 200:5358 201:1582 202:7996 203:8273
204:4021 205:2400 206:2492 207:3071 208:3884 209:3468
210:2546 211:1311 212:1714 213:1664 214:660 215:69
216:4689 217:1514 218:503 219:380 220:1139 221:402
222:317 223:3
End of report
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