[afnog] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Aug 31 18:12:25 UTC 2007
This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.
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 01 Sep, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/09/01/0400
Analysis Summary
----------------
BGP routing table entries examined: 229742
Prefixes after maximum aggregation: 119898
Deaggregation factor: 1.92
Unique aggregates announced to Internet: 110820
Total ASes present in the Internet Routing Table: 26109
Prefixes per ASN: 8.80
Origin-only ASes present in the Internet Routing Table: 22732
Origin ASes announcing only one prefix: 11081
Transit ASes present in the Internet Routing Table: 3377
Transit-only ASes present in the Internet Routing Table: 77
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 20
Max AS path prepend of ASN (35389) 16
Prefixes from unregistered ASNs in the Routing Table: 10
Unregistered ASNs in the Routing Table: 6
Prefixes from 32-bit ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1756836704
Equivalent to 104 /8s, 183 /16s and 51 /24s
Percentage of available address space announced: 47.4
Percentage of allocated address space announced: 62.1
Percentage of available address space allocated: 76.4
Total number of prefixes smaller than registry allocations: 121719
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 53719
Total APNIC prefixes after maximum aggregation: 20575
APNIC Deaggregation factor: 2.61
Prefixes being announced from the APNIC address blocks: 50635
Unique aggregates announced from the APNIC address blocks: 21459
APNIC Region origin ASes present in the Internet Routing Table: 3046
APNIC Prefixes per ASN: 16.62
APNIC Region origin ASes announcing only one prefix: 809
APNIC Region transit ASes present in the Internet Routing Table: 467
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 313653792
Equivalent to 18 /8s, 177 /16s and 250 /24s
Percentage of available APNIC address space announced: 77.7
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911
APNIC Address Blocks 58/7, 60/7, 116/6, 120/6, 124/7, 126/8, 202/7
210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 108857
Total ARIN prefixes after maximum aggregation: 62963
ARIN Deaggregation factor: 1.73
Prefixes being announced from the ARIN address blocks: 80198
Unique aggregates announced from the ARIN address blocks: 31899
ARIN Region origin ASes present in the Internet Routing Table: 11791
ARIN Prefixes per ASN: 6.80
ARIN Region origin ASes announcing only one prefix: 4522
ARIN Region transit ASes present in the Internet Routing Table: 1091
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 14
Number of ARIN addresses announced to Internet: 343064576
Equivalent to 20 /8s, 114 /16s and 192 /24s
Percentage of available ARIN address space announced: 75.7
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
ARIN Address Blocks 24/8, 63/8, 64/5, 72/6, 76/8, 96/6, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 48026
Total RIPE prefixes after maximum aggregation: 30905
RIPE Deaggregation factor: 1.55
Prefixes being announced from the RIPE address blocks: 44417
Unique aggregates announced from the RIPE address blocks: 29477
RIPE Region origin ASes present in the Internet Routing Table: 10130
RIPE Prefixes per ASN: 4.38
RIPE Region origin ASes announcing only one prefix: 5399
RIPE Region transit ASes present in the Internet Routing Table: 1605
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 325697152
Equivalent to 19 /8s, 105 /16s and 190 /24s
Percentage of available RIPE address space announced: 74.7
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
40960-44031
RIPE Address Blocks 62/8, 77/8, 78/7, 80/4, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 16441
Total LACNIC prefixes after maximum aggregation: 4422
LACNIC Deaggregation factor: 3.72
Prefixes being announced from the LACNIC address blocks: 14536
Unique aggregates announced from the LACNIC address blocks: 7794
LACNIC Region origin ASes present in the Internet Routing Table: 858
LACNIC Prefixes per ASN: 16.94
LACNIC Region origin ASes announcing only one prefix: 282
LACNIC Region transit ASes present in the Internet Routing Table: 144
Average LACNIC Region AS path length visible: 3.9
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 42168064
Equivalent to 2 /8s, 131 /16s and 111 /24s
Percentage of available LACNIC address space announced: 62.8
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 189/8, 190/8, 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 2683
Total AfriNIC prefixes after maximum aggregation: 1021
AfriNIC Deaggregation factor: 2.63
Prefixes being announced from the AfriNIC address blocks: 2261
Unique aggregates announced from the AfriNIC address blocks: 1335
AfriNIC Region origin ASes present in the Internet Routing Table: 206
AfriNIC Prefixes per ASN: 10.98
AfriNIC Region origin ASes announcing only one prefix: 69
AfriNIC Region transit ASes present in the Internet Routing Table: 36
Average AfriNIC Region AS path length visible: 3.9
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 7426304
Equivalent to 0 /8s, 113 /16s and 81 /24s
Percentage of available AfriNIC address space announced: 22.1
AfriNIC AS Blocks 36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4755 1345 383 74 Videsh Sanchar Nigam Ltd. Aut
9583 1134 100 106 Sify Limited
4134 1071 11178 289 CHINANET-BACKBONE
9498 997 532 66 BHARTI BT INTERNET LTD.
4766 803 5441 319 Korea Telecom (KIX)
17488 796 52 55 Hathway IP Over Cable Interne
23577 786 34 682 Korea Telecom (ATM-MPLS)
7545 729 159 121 TPG Internet Pty Ltd
18101 595 119 50 Reliance Infocom Ltd Internet
4812 547 968 96 China Telecom (Shanghai)
1221 542 1951 424 Telstra Pty Ltd
4668 516 68 10 LG-EDS Systems Inc.
17676 503 10919 64 Softbank BB Corp.
4808 483 779 114 CNCGROUP IP network: China169
9443 464 122 77 Primus Telecommunications
4802 432 116 158 Wantree Development
7474 378 216 267 SingTel Optus Pty Ltd
17974 373 130 13 PT TELEKOMUNIKASI INDONESIA
4837 366 5104 167 chinanet IDC center beijing n
9829 363 258 14 BSNL National Internet Backbo
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1475 6074 993 AT&T WorldNet Services
4323 1324 992 373 Time Warner Telecom
2386 1214 618 748 AT&T Data Communications Serv
11492 1137 110 11 Cable One
6478 1132 324 169 AT&T Worldnet Services
6197 1028 718 511 BellSouth Network Solutions,
18566 1022 288 9 Covad Communications
174 975 6780 863 Cogent Communications
701 938 6577 716 UUNET Technologies, Inc.
7011 919 278 549 Citizens Utilities
20115 817 751 436 Charter Communications
1239 802 2718 563 Sprint
19262 775 2745 184 Verizon Global Networks
22773 762 2149 50 Cox Communications, Inc.
209 739 3836 584 Qwest
5668 657 176 23 CenturyTel Internet Holdings,
6517 590 165 37 Yipes Communications, Inc.
3356 587 10811 344 Level 3 Communications, LLC
852 576 1095 361 Telus Advanced Communications
15270 574 160 38 PaeTec.net -a division of Pae
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 492 1923 394 UUNET - Commercial IP service
24863 367 57 40 LINKdotNET AS number
9116 346 168 26 Goldenlines main autonomous s
3301 314 1456 294 TeliaNet Sweden
3320 314 6035 261 Deutsche Telekom AG
6746 287 130 263 Dynamic Network Technologies,
680 269 2045 257 DFN-IP service G-WiN
8708 262 420 241 Romania Data Systems S.A.
8220 260 445 243 COLT Telecommunications
3215 258 2424 98 France Telecom Transpac
8551 248 244 28 Bezeq International
3352 227 1868 38 Ibernet, Internet Access Netw
5089 222 1658 54 NTL Group Limited
3269 221 2775 73 TELECOM ITALIA
9121 214 1441 24 TTnet Autonomous System
3292 195 1379 175 TDC Tele Danmark
1257 192 1195 170 SWIPnet Swedish IP Network
3300 192 172 92 AUCS Communications Services
12479 192 578 6 Uni2 Autonomous System
3246 187 253 177 Song Networks
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 904 1974 205 UniNet S.A. de C.V.
11830 517 299 9 Instituto Costarricense de El
16814 426 26 9 NSS, S.A.
11172 371 114 57 Servicios Alestra S.A de C.V
7303 339 177 45 Telecom Argentina Stet-France
14522 333 28 7 SatNet S.A.
6471 322 75 33 ENTEL CHILE S.A.
22047 318 246 13 VTR PUNTO NET S.A.
14117 281 19 15 Telefonica del Sur S.A.
10481 278 104 9 Prima S.A.
11556 235 128 3 Cable-Wireless Panama
6147 227 178 24 Telefonica Del Peru
10620 223 62 23 TVCABLE BOGOTA
6503 201 170 82 AVANTEL, S.A.
23216 196 16 44 RAMtelecom Telecomunicaciones
20299 180 25 31 NEWCOM AMERICAS
8163 177 11 6 METROTEL REDES S.A.
7738 169 506 23 Telecomunicacoes da Bahia S.A
21826 168 30 59 INTERCABLE
19169 165 12 17 Telconet
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 283 868 224 The Internet Solution
8452 222 188 7 TEDATA
2018 148 301 115 Tertiary Education Network
6713 142 135 11 Itissalat Al-MAGHRIB
33783 126 8 11 EEPAD TISP TELECOM & INTERNET
5536 124 8 10 Internet Egypt Network
33776 100 6 3 Starcomms Nigeria Limited
24835 87 48 6 RAYA Telecom - Egypt
15475 75 84 4 Nile Online
2905 74 174 71 The Internetworking Company o
23889 69 24 15 MAURITIUS TELECOM
2561 62 6 2 Egyptian Universities Network
33774 47 29 25 AS Number for Telecom Algeria
5713 46 294 36 Telkom SA Ltd
16637 46 21 29 Johnnic e-Ventures
8524 31 2 10 AUCEGYPT Autonomous System
12455 29 6 3 Jambonet Autonomous system
21280 29 4 4 Swift Global Kenya Ltd.Is an
10798 27 16 1 Standard Bank of South Africa
21491 24 17 2 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1345 1271 Videsh Sanchar Nigam Ltd. Aut
11492 1137 1126 Cable One
9583 1134 1028 Sify Limited
18566 1022 1013 Covad Communications
6478 1132 963 AT&T Worldnet Services
4323 1324 951 Time Warner Telecom
9498 997 931 BHARTI BT INTERNET LTD.
4134 1071 782 CHINANET-BACKBONE
17488 796 741 Hathway IP Over Cable Interne
22773 762 712 Cox Communications, Inc.
8151 904 699 UniNet S.A. de C.V.
5668 657 634 CenturyTel Internet Holdings,
7545 729 608 TPG Internet Pty Ltd
19262 775 591 Verizon Global Networks
6517 590 553 Yipes Communications, Inc.
18101 595 545 Reliance Infocom Ltd Internet
15270 574 536 PaeTec.net -a division of Pae
6197 1028 517 BellSouth Network Solutions,
19916 568 517 OLM LLC
11830 517 508 Instituto Costarricense de El
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
64250 RESERVED 122.171.0.0/24 9498 BHARTI BT INTERNET L
64250 RESERVED 122.171.1.0/24 9498 BHARTI BT INTERNET L
64586 PRIVATE 192.170.73.0/24 4845 Chung Hsiao East Roa
64501 RESERVED 195.189.160.0/24 35041 Crystone Autonomous
64586 PRIVATE 202.165.137.0/24 4845 Chung Hsiao East Roa
64586 PRIVATE 202.165.140.0/24 4845 Chung Hsiao East Roa
64586 PRIVATE 202.165.141.0/24 4845 Chung Hsiao East Roa
64586 PRIVATE 202.165.142.0/24 4845 Chung Hsiao East Roa
64586 PRIVATE 202.165.143.0/24 4845 Chung Hsiao East Roa
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
7.1.1.0/24 1239 Sprint
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 721 DLA Systems Automation Center
172.33.1.0/24 7018 AT&T WorldNet Services
192.0.10.0/24 9498 BHARTI BT INTERNET LTD.
192.44.0.0/24 5501 Fraunhofer Gesellschaft
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.153.136.0/21 721 DLA Systems Automation Center
192.172.0.0/19 721 DLA Systems Automation Center
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:18 /9:9 /10:15 /11:38 /12:134
/13:260 /14:471 /15:919 /16:9620 /17:4069 /18:6596
/19:13963 /20:16197 /21:14868 /22:19127 /23:20067 /24:120967
/25:772 /26:1030 /27:505 /28:84 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1131 1132 AT&T Worldnet Services
11492 1129 1137 Cable One
18566 1004 1022 Covad Communications
9583 968 1134 Sify Limited
2386 907 1214 AT&T Data Communications Serv
7018 816 1475 AT&T WorldNet Services
7011 813 919 Citizens Utilities
6197 781 1028 BellSouth Network Solutions,
23577 777 786 Korea Telecom (ATM-MPLS)
4755 727 1345 Videsh Sanchar Nigam Ltd. Aut
9498 669 997 BHARTI BT INTERNET LTD.
17488 619 796 Hathway IP Over Cable Interne
4766 601 803 Korea Telecom (KIX)
19916 563 568 OLM LLC
4323 557 1324 Time Warner Telecom
6517 556 590 Yipes Communications, Inc.
15270 538 574 PaeTec.net -a division of Pae
5668 522 657 CenturyTel Internet Holdings,
4668 506 516 LG-EDS Systems Inc.
18101 500 595 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:86 12:1810 13:1 15:19
16:3 17:3 18:13 20:36 24:967 25:1
32:56 33:3 38:349 40:60 41:321 44:2
47:4 52:4 55:3 56:3 57:25 58:471
59:386 60:367 61:1016 62:927 63:2002 64:3189
65:2369 66:3402 67:804 68:658 69:1969 70:448
71:105 72:1396 73:2 74:642 75:262 76:128
77:330 78:48 80:826 81:826 82:576 83:357
84:607 85:805 86:340 87:488 88:279 89:973
90:25 91:522 97:5 116:315 117:154 118:9
121:270 122:595 123:170 124:644 125:988 128:274
129:216 130:139 131:363 132:55 133:9 134:197
135:34 136:189 137:81 138:153 139:72 140:499
141:173 142:379 143:255 144:299 145:46 146:329
147:123 148:412 149:148 150:110 151:159 152:87
153:119 154:3 155:260 156:160 157:214 158:158
159:171 160:113 161:96 162:175 163:180 164:476
165:394 166:275 167:297 168:515 169:123 170:387
171:22 172:2 189:71 190:1005 192:5742 193:3972
194:3191 195:2296 196:974 198:3823 199:3283 200:5094
201:1184 202:7371 203:7710 204:3928 205:1972 206:2418
207:2840 208:2815 209:3479 210:2458 211:1087 212:1314
213:1482 214:413 215:41 216:3987 217:1191 218:325
219:382 220:1028 221:415 222:262
End of report
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