[afnog] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Aug 10 18:03:23 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 11 Aug, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/08/11/0400
Analysis Summary
----------------
BGP routing table entries examined: 227875
Prefixes after maximum aggregation: 119464
Deaggregation factor: 1.91
Unique aggregates announced to Internet: 110970
Total ASes present in the Internet Routing Table: 25926
Prefixes per ASN: 8.79
Origin-only ASes present in the Internet Routing Table: 22589
Origin ASes announcing only one prefix: 11046
Transit ASes present in the Internet Routing Table: 3337
Transit-only ASes present in the Internet Routing Table: 75
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 21
Max AS path prepend of ASN (35389) 16
Prefixes from unregistered ASNs in the Routing Table: 7
Unregistered ASNs in the Routing Table: 3
Prefixes from 32-bit ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1749388768
Equivalent to 104 /8s, 69 /16s and 141 /24s
Percentage of available address space announced: 47.2
Percentage of allocated address space announced: 61.8
Percentage of available address space allocated: 76.4
Total number of prefixes smaller than registry allocations: 120402
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 53191
Total APNIC prefixes after maximum aggregation: 20712
APNIC Deaggregation factor: 2.57
Prefixes being announced from the APNIC address blocks: 50139
Unique aggregates announced from the APNIC address blocks: 22150
APNIC Region origin ASes present in the Internet Routing Table: 3031
APNIC Prefixes per ASN: 16.54
APNIC Region origin ASes announcing only one prefix: 824
APNIC Region transit ASes present in the Internet Routing Table: 462
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 311122080
Equivalent to 18 /8s, 139 /16s and 88 /24s
Percentage of available APNIC address space announced: 77.1
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: 107833
Total ARIN prefixes after maximum aggregation: 62588
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 79381
Unique aggregates announced from the ARIN address blocks: 31831
ARIN Region origin ASes present in the Internet Routing Table: 11735
ARIN Prefixes per ASN: 6.76
ARIN Region origin ASes announcing only one prefix: 4526
ARIN Region transit ASes present in the Internet Routing Table: 1069
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 341862144
Equivalent to 20 /8s, 96 /16s and 103 /24s
Percentage of available ARIN address space announced: 75.5
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: 48019
Total RIPE prefixes after maximum aggregation: 30741
RIPE Deaggregation factor: 1.56
Prefixes being announced from the RIPE address blocks: 44367
Unique aggregates announced from the RIPE address blocks: 29166
RIPE Region origin ASes present in the Internet Routing Table: 10041
RIPE Prefixes per ASN: 4.42
RIPE Region origin ASes announcing only one prefix: 5357
RIPE Region transit ASes present in the Internet Routing Table: 1598
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 323784320
Equivalent to 19 /8s, 76 /16s and 142 /24s
Percentage of available RIPE address space announced: 74.2
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
40960-44031
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: 16134
Total LACNIC prefixes after maximum aggregation: 4375
LACNIC Deaggregation factor: 3.69
Prefixes being announced from the LACNIC address blocks: 14185
Unique aggregates announced from the LACNIC address blocks: 7718
LACNIC Region origin ASes present in the Internet Routing Table: 842
LACNIC Prefixes per ASN: 16.85
LACNIC Region origin ASes announcing only one prefix: 274
LACNIC Region transit ASes present in the Internet Routing Table: 143
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 41738240
Equivalent to 2 /8s, 124 /16s and 224 /24s
Percentage of available LACNIC address space announced: 62.2
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: 2688
Total AfriNIC prefixes after maximum aggregation: 1038
AfriNIC Deaggregation factor: 2.59
Prefixes being announced from the AfriNIC address blocks: 2223
Unique aggregates announced from the AfriNIC address blocks: 1355
AfriNIC Region origin ASes present in the Internet Routing Table: 201
AfriNIC Prefixes per ASN: 11.06
AfriNIC Region origin ASes announcing only one prefix: 65
AfriNIC Region transit ASes present in the Internet Routing Table: 32
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 6319616
Equivalent to 0 /8s, 96 /16s and 110 /24s
Percentage of available AfriNIC address space announced: 18.8
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
4134 1329 11126 287 CHINANET-BACKBONE
4755 1317 382 71 Videsh Sanchar Nigam Ltd. Aut
9583 1124 80 402 Sify Limited
9498 994 532 69 BHARTI BT INTERNET LTD.
4766 798 5440 316 Korea Telecom (KIX)
23577 788 34 684 Korea Telecom (ATM-MPLS)
17488 742 48 59 Hathway IP Over Cable Interne
7545 702 150 116 TPG Internet Pty Ltd
18101 581 117 39 Reliance Infocom Ltd Internet
1221 549 1951 427 Telstra Pty Ltd
4812 529 915 95 China Telecom (Shanghai)
4668 512 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
4808 478 768 109 CNCGROUP IP network: China169
9443 473 122 77 Primus Telecommunications
4802 419 112 152 Wantree Development
7474 399 217 272 SingTel Optus Pty Ltd
17974 362 130 13 PT TELEKOMUNIKASI INDONESIA
4837 352 4944 164 chinanet IDC center beijing n
9829 352 258 14 BSNL National Internet Backbo
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1473 6075 989 AT&T WorldNet Services
4323 1328 1022 372 Time Warner Telecom
2386 1203 614 740 AT&T Data Communications Serv
6478 1115 322 132 AT&T Worldnet Services
11492 1113 108 38 Cable One
6197 1028 717 509 BellSouth Network Solutions,
18566 1018 288 9 Covad Communications
174 966 6777 856 Cogent Communications
701 944 6563 720 UUNET Technologies, Inc.
7011 906 259 544 Citizens Utilities
20115 807 742 431 Charter Communications
1239 806 2741 573 Sprint
19262 766 2721 185 Verizon Global Networks
22773 754 2148 49 Cox Communications, Inc.
209 743 3869 588 Qwest
5668 629 171 23 CenturyTel Internet Holdings,
6517 579 161 37 Yipes Communications, Inc.
855 575 254 73 Canadian Research Network
852 574 1093 365 Telus Advanced Communications
6198 569 613 259 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2119 515 1075 138 Telenor Internet Access
702 503 1922 404 UUNET - Commercial IP service
24863 362 57 41 LINKdotNET AS number
9116 349 168 26 Goldenlines main autonomous s
3301 313 1456 293 TeliaNet Sweden
3320 311 6034 257 Deutsche Telekom AG
6746 287 130 263 Dynamic Network Technologies,
5089 269 1658 54 NTL Group Limited
680 266 2061 257 DFN-IP service G-WiN
8220 261 446 244 COLT Telecommunications
3215 256 2392 97 France Telecom Transpac
8708 253 420 242 Romania Data Systems S.A.
8551 231 228 27 Bezeq International
3352 224 1864 41 Ibernet, Internet Access Netw
3269 221 2775 73 TELECOM ITALIA
9121 210 1441 24 TTnet Autonomous System
3292 195 1379 175 TDC Tele Danmark
1257 194 1195 172 SWIPnet Swedish IP Network
12479 193 578 6 Uni2 Autonomous System
3300 191 172 91 AUCS Communications Services
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 904 1957 211 UniNet S.A. de C.V.
11830 483 299 9 Instituto Costarricense de El
16814 426 26 9 NSS, S.A.
11172 374 115 61 Servicios Alestra S.A de C.V
14522 334 28 7 SatNet S.A.
7303 331 172 42 Telecom Argentina Stet-France
22047 318 246 13 VTR PUNTO NET S.A.
6471 316 75 32 ENTEL CHILE S.A.
14117 281 19 15 Telefonica del Sur S.A.
10481 261 104 9 Prima S.A.
11556 229 128 3 Cable-Wireless Panama
6147 226 176 27 Telefonica Del Peru
10620 217 61 26 TVCABLE BOGOTA
6503 201 171 83 AVANTEL, S.A.
23216 195 16 43 RAMtelecom Telecomunicaciones
8163 177 11 6 METROTEL REDES S.A.
19169 170 15 20 Telconet
20299 163 24 21 NEWCOM AMERICAS
21826 162 28 61 INTERCABLE
7738 159 506 23 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 282 867 223 The Internet Solution
8452 229 188 7 TEDATA
6713 142 135 11 Itissalat Al-MAGHRIB
2018 141 301 115 Tertiary Education Network
33783 125 8 11 EEPAD TISP TELECOM & INTERNET
5536 124 8 10 Internet Egypt Network
33776 99 6 8 Starcomms Nigeria Limited
24835 87 48 6 RAYA Telecom - Egypt
15475 78 84 4 Nile Online
2905 75 174 72 The Internetworking Company o
2561 62 6 2 Egyptian Universities Network
15706 56 12 4 Sudatel Internet Exchange Aut
23889 52 24 15 MAURITIUS TELECOM
5713 46 294 36 Telkom SA Ltd
33774 46 29 24 AS Number for Telecom Algeria
16637 42 21 29 Johnnic e-Ventures
8524 31 2 10 AUCEGYPT Autonomous System
12455 30 6 3 Jambonet Autonomous system
21280 30 4 4 Swift Global Kenya Ltd.Is an
10798 24 2 15 Standard Bank of South Africa
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1317 1246 Videsh Sanchar Nigam Ltd. Aut
11492 1113 1075 Cable One
4134 1329 1042 CHINANET-BACKBONE
18566 1018 1009 Covad Communications
6478 1115 983 AT&T Worldnet Services
4323 1328 956 Time Warner Telecom
9498 994 925 BHARTI BT INTERNET LTD.
9583 1124 722 Sify Limited
22773 754 705 Cox Communications, Inc.
8151 904 693 UniNet S.A. de C.V.
17488 742 683 Hathway IP Over Cable Interne
5668 629 606 CenturyTel Internet Holdings,
7545 702 586 TPG Internet Pty Ltd
19262 766 581 Verizon Global Networks
18101 581 542 Reliance Infocom Ltd Internet
6517 579 542 Yipes Communications, Inc.
15270 568 530 PaeTec.net -a division of Pae
6197 1028 519 BellSouth Network Solutions,
19916 568 517 OLM LLC
855 575 502 Canadian Research Network
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
64513 PRIVATE 63.171.234.0/26 1803 SPRINT
64513 PRIVATE 63.171.234.64/26 1803 SPRINT
64513 PRIVATE 63.171.234.128/26 1803 SPRINT
64513 PRIVATE 63.171.234.192/26 1803 SPRINT
38347 UNALLOCATED 116.212.160.0/21 9389 BEIJING SHENZHOU GRE
38347 UNALLOCATED 116.212.168.0/21 9389 BEIJING SHENZHOU GRE
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 /11:36 /12:133
/13:257 /14:470 /15:909 /16:9572 /17:4043 /18:6513
/19:13827 /20:16056 /21:14697 /22:19048 /23:19975 /24:119925
/25:767 /26:1022 /27:490 /28:80 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1114 1115 AT&T Worldnet Services
11492 1105 1113 Cable One
18566 1000 1018 Covad Communications
9583 966 1124 Sify Limited
2386 897 1203 AT&T Data Communications Serv
7018 808 1473 AT&T WorldNet Services
7011 804 906 Citizens Utilities
6197 782 1028 BellSouth Network Solutions,
23577 779 788 Korea Telecom (ATM-MPLS)
4755 708 1317 Videsh Sanchar Nigam Ltd. Aut
9498 663 994 BHARTI BT INTERNET LTD.
4766 595 798 Korea Telecom (KIX)
17488 565 742 Hathway IP Over Cable Interne
19916 563 568 OLM LLC
4323 559 1328 Time Warner Telecom
6517 544 579 Yipes Communications, Inc.
15270 532 568 PaeTec.net -a division of Pae
4668 502 512 LG-EDS Systems Inc.
5668 495 629 CenturyTel Internet Holdings,
18101 495 581 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:85 12:1795 15:19 16:3
17:3 18:12 20:37 24:928 25:1 32:57
33:3 38:345 40:60 41:292 44:2 47:4
52:4 55:3 56:3 57:25 58:470 59:389
60:343 61:990 62:918 63:1993 64:3141 65:2341
66:3317 67:753 68:623 69:1933 70:445 71:104
72:1378 73:2 74:615 75:254 76:97 77:277
78:32 80:830 81:824 82:662 83:371 84:600
85:852 86:337 87:478 88:275 89:951 90:22
91:460 97:6 116:270 117:124 121:258 122:572
123:151 124:841 125:980 128:292 129:212 130:139
131:362 132:55 133:9 134:199 135:34 136:188
137:80 138:149 139:71 140:489 141:172 142:378
143:254 144:299 145:46 146:325 147:120 148:410
149:142 150:111 151:159 152:90 153:122 154:3
155:260 156:156 157:212 158:157 159:172 160:108
161:94 162:185 163:179 164:466 165:393 166:271
167:295 168:507 169:121 170:410 171:22 172:2
189:71 190:928 192:5751 193:3964 194:3171 195:2270
196:974 198:3813 199:3270 200:5074 201:1147 202:7402
203:7586 204:3943 205:1975 206:2421 207:2818 208:2762
209:3514 210:2423 211:971 212:1317 213:1457 214:418
215:41 216:3979 217:1156 218:351 219:383 220:1006
221:413 222:267
End of report
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