Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Nov 9 18:13:42 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 10 Nov, 2007
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 237341
Prefixes after maximum aggregation: 122449
Deaggregation factor: 1.94
Unique aggregates announced to Internet: 115597
Total ASes present in the Internet Routing Table: 26637
Prefixes per ASN: 8.91
Origin-only ASes present in the Internet Routing Table: 23181
Origin ASes announcing only one prefix: 11299
Transit ASes present in the Internet Routing Table: 3456
Transit-only ASes present in the Internet Routing Table: 82
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 28
Max AS path prepend of ASN (35389) 25
Prefixes from unregistered ASNs in the Routing Table: 13
Unregistered ASNs in the Routing Table: 7
Prefixes from 32-bit ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1789588096
Equivalent to 106 /8s, 170 /16s and 242 /24s
Percentage of available address space announced: 48.3
Percentage of allocated address space announced: 61.8
Percentage of available address space allocated: 78.2
Total number of prefixes smaller than registry allocations: 110282
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 55382
Total APNIC prefixes after maximum aggregation: 21135
APNIC Deaggregation factor: 2.62
Prefixes being announced from the APNIC address blocks: 52274
Unique aggregates announced from the APNIC address blocks: 23121
APNIC Region origin ASes present in the Internet Routing Table: 3082
APNIC Prefixes per ASN: 16.96
APNIC Region origin ASes announcing only one prefix: 808
APNIC Region transit ASes present in the Internet Routing Table: 473
Average APNIC Region AS path length visible: 3.7
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 323915200
Equivalent to 19 /8s, 78 /16s and 141 /24s
Percentage of available APNIC address space announced: 74.1
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, 114/7, 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: 111414
Total ARIN prefixes after maximum aggregation: 63761
ARIN Deaggregation factor: 1.75
Prefixes being announced from the ARIN address blocks: 82332
Unique aggregates announced from the ARIN address blocks: 32690
ARIN Region origin ASes present in the Internet Routing Table: 11930
ARIN Prefixes per ASN: 6.90
ARIN Region origin ASes announcing only one prefix: 4591
ARIN Region transit ASes present in the Internet Routing Table: 1118
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 14
Number of ARIN addresses announced to Internet: 352392704
Equivalent to 21 /8s, 1 /16s and 22 /24s
Percentage of available ARIN address space announced: 77.8
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: 49571
Total RIPE prefixes after maximum aggregation: 31892
RIPE Deaggregation factor: 1.55
Prefixes being announced from the RIPE address blocks: 46437
Unique aggregates announced from the RIPE address blocks: 30624
RIPE Region origin ASes present in the Internet Routing Table: 10456
RIPE Prefixes per ASN: 4.44
RIPE Region origin ASes announcing only one prefix: 5544
RIPE Region transit ASes present in the Internet Routing Table: 1646
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 28
Number of RIPE addresses announced to Internet: 335900672
Equivalent to 20 /8s, 5 /16s and 112 /24s
Percentage of available RIPE address space announced: 77.0
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
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: 17770
Total LACNIC prefixes after maximum aggregation: 4565
LACNIC Deaggregation factor: 3.89
Prefixes being announced from the LACNIC address blocks: 15670
Unique aggregates announced from the LACNIC address blocks: 8680
LACNIC Region origin ASes present in the Internet Routing Table: 871
LACNIC Prefixes per ASN: 17.99
LACNIC Region origin ASes announcing only one prefix: 284
LACNIC Region transit ASes present in the Internet Routing Table: 149
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 45985792
Equivalent to 2 /8s, 189 /16s and 176 /24s
Percentage of available LACNIC address space announced: 45.7
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 186/7, 189/8, 190/8, 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 3182
Total AfriNIC prefixes after maximum aggregation: 1080
AfriNIC Deaggregation factor: 2.95
Prefixes being announced from the AfriNIC address blocks: 2375
Unique aggregates announced from the AfriNIC address blocks: 1398
AfriNIC Region origin ASes present in the Internet Routing Table: 215
AfriNIC Prefixes per ASN: 11.05
AfriNIC Region origin ASes announcing only one prefix: 72
AfriNIC Region transit ASes present in the Internet Routing Table: 39
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 7636224
Equivalent to 0 /8s, 116 /16s and 133 /24s
Percentage of available AfriNIC address space announced: 22.8
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
4755 1482 383 70 Videsh Sanchar Nigam Ltd. Aut
9583 1101 81 419 Sify Limited
4134 1100 11563 301 CHINANET-BACKBONE
9498 1046 549 64 BHARTI BT INTERNET LTD.
17488 879 57 70 Hathway IP Over Cable Interne
4766 815 5474 328 Korea Telecom (KIX)
23577 776 34 681 Korea Telecom (ATM-MPLS)
7545 721 159 123 TPG Internet Pty Ltd
18101 608 119 52 Reliance Infocom Ltd Internet
1221 543 1951 423 Telstra Pty Ltd
9829 530 1312 9 BSNL National Internet Backbo
4812 524 866 77 China Telecom (Shanghai)
4668 521 68 10 LG-EDS Systems Inc.
17676 504 10919 64 Softbank BB Corp.
4808 499 797 121 CNCGROUP IP network: China169
4802 481 130 141 Wantree Development
9443 440 121 70 Primus Telecommunications
7474 383 202 269 SingTel Optus Pty Ltd
17974 383 146 14 PT TELEKOMUNIKASI INDONESIA
4837 356 5050 168 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1498 6146 1005 AT&T WorldNet Services
4323 1362 1014 358 Time Warner Telecom
2386 1259 630 769 AT&T Data Communications Serv
11492 1164 120 48 Cable One
6478 1121 329 184 AT&T Worldnet Services
18566 1030 288 9 Covad Communications
6197 1029 718 508 BellSouth Network Solutions,
174 981 6882 846 Cogent Communications
7011 981 290 564 Citizens Utilities
701 902 6569 706 UUNET Technologies, Inc.
20115 851 773 461 Charter Communications
3356 827 10887 411 Level 3 Communications, LLC
22773 806 2133 54 Cox Communications, Inc.
19262 802 2893 184 Verizon Global Networks
1239 801 2713 557 Sprint
209 729 3784 573 Qwest
5668 664 176 17 CenturyTel Internet Holdings,
15270 598 161 41 PaeTec.net -a division of Pae
3561 592 2324 374 Savvis
6517 585 163 33 Yipes Communications, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 470 1917 383 UUNET - Commercial IP service
9116 335 168 28 Goldenlines main autonomous s
3301 316 1441 293 TeliaNet Sweden
3320 316 6035 262 Deutsche Telekom AG
8551 311 298 41 Bezeq International
6746 276 130 254 Dynamic Network Technologies,
8708 274 421 245 Romania Data Systems S.A.
8866 271 62 25 Bulgarian Telecommunication C
680 268 2045 254 DFN-IP service G-WiN
3215 263 2503 98 France Telecom Transpac
8220 255 444 237 COLT Telecommunications
8452 249 188 7 TEDATA
3352 235 1932 41 Ibernet, Internet Access Netw
3269 229 2967 71 TELECOM ITALIA
9121 212 1442 25 TTnet Autonomous System
3300 198 171 93 AUCS Communications Services
12479 195 578 6 Uni2 Autonomous System
1257 194 1195 177 SWIPnet Swedish IP Network
3292 193 1380 177 TDC Tele Danmark
3246 185 256 175 Song Networks
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1162 2419 216 UniNet S.A. de C.V.
11830 539 299 9 Instituto Costarricense de El
16814 427 27 10 NSS, S.A.
14522 381 33 8 SatNet S.A.
11172 376 114 60 Servicios Alestra S.A de C.V
7303 373 180 56 Telecom Argentina Stet-France
6471 353 77 37 ENTEL CHILE S.A.
22047 317 246 13 VTR PUNTO NET S.A.
10481 301 120 10 Prima S.A.
14117 285 19 15 Telefonica del Sur S.A.
10620 253 70 44 TVCABLE BOGOTA
6147 242 182 20 Telefonica Del Peru
11556 236 128 4 Cable-Wireless Panama
23216 218 17 46 RAMtelecom Telecomunicaciones
6503 216 187 85 AVANTEL, S.A.
28573 214 314 27 NET Servicos de Comunicao S.A
7738 206 538 24 Telecomunicacoes da Bahia S.A
20299 187 33 30 NEWCOM AMERICAS
21826 186 33 47 INTERCABLE
19169 182 12 19 Telconet
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 380 60 40 LINKdotNET AS number
3741 281 869 226 The Internet Solution
20858 195 34 3 EgyNet
6713 143 135 11 Itissalat Al-MAGHRIB
2018 140 299 115 Tertiary Education Network
5536 124 8 10 Internet Egypt Network
33776 100 6 3 Starcomms Nigeria Limited
24835 88 48 6 RAYA Telecom - Egypt
15475 81 84 4 Nile Online
2905 75 174 72 The Internetworking Company o
23889 75 24 15 MAURITIUS TELECOM
33783 68 8 14 EEPAD TISP TELECOM & INTERNET
20484 63 5 5 Yalla Online Autonomous Syste
16637 62 21 29 Johnnic e-Ventures
15706 57 12 4 Sudatel Internet Exchange Aut
29571 56 11 7 Ci Telecom Autonomous system
33774 47 32 27 AS Number for Telecom Algeria
5713 45 294 35 Telkom SA Ltd
12455 36 6 3 Jambonet Autonomous system
8524 32 2 10 AUCEGYPT Autonomous System
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1482 1412 Videsh Sanchar Nigam Ltd. Aut
11492 1164 1116 Cable One
18566 1030 1021 Covad Communications
4323 1362 1004 Time Warner Telecom
9498 1046 982 BHARTI BT INTERNET LTD.
8151 1162 946 UniNet S.A. de C.V.
6478 1121 937 AT&T Worldnet Services
17488 879 809 Hathway IP Over Cable Interne
4134 1100 799 CHINANET-BACKBONE
22773 806 752 Cox Communications, Inc.
9583 1101 682 Sify Limited
5668 664 647 CenturyTel Internet Holdings,
19262 802 618 Verizon Global Networks
7545 721 598 TPG Internet Pty Ltd
15270 598 557 PaeTec.net -a division of Pae
18101 608 556 Reliance Infocom Ltd Internet
6517 585 552 Yipes Communications, Inc.
11830 539 530 Instituto Costarricense de El
19916 569 522 OLM LLC
6197 1029 521 BellSouth Network Solutions,
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
64999 PRIVATE 78.24.120.0/23 3257 Tiscali Intl Network
64999 PRIVATE 78.24.122.0/23 3257 Tiscali Intl Network
64999 PRIVATE 78.24.124.0/24 3257 Tiscali Intl Network
64999 PRIVATE 78.24.125.0/24 3257 Tiscali Intl Network
64999 PRIVATE 78.24.126.0/24 3257 Tiscali Intl Network
64999 PRIVATE 78.24.127.0/24 3257 Tiscali Intl Network
65068 PRIVATE 79.171.184.0/21 43895 *
64718 PRIVATE 81.200.197.0/24 25325 AS of Deutsche Bahn
64718 PRIVATE 81.200.198.0/23 25325 AS of Deutsche Bahn
64719 PRIVATE 81.200.204.0/24 25325 AS of Deutsche Bahn
65300 PRIVATE 216.243.221.0/24 11320 Internet Express, In
65300 PRIVATE 216.243.222.0/24 11320 Internet Express, In
65300 PRIVATE 216.243.223.0/24 11320 Internet Express, In
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
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
172.14.254.0/24 20312 CNTI-REACCIUN "Centro Naciona
172.15.254.0/24 20312 CNTI-REACCIUN "Centro Naciona
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 /10:16 /11:39 /12:136
/13:270 /14:483 /15:948 /16:9704 /17:4190 /18:6746
/19:14663 /20:16756 /21:15647 /22:19842 /23:20840 /24:124539
/25:807 /26:1018 /27:543 /28:114 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1155 1164 Cable One
6478 1120 1121 AT&T Worldnet Services
18566 1012 1030 Covad Communications
2386 950 1259 AT&T Data Communications Serv
9583 946 1101 Sify Limited
7011 868 981 Citizens Utilities
4755 850 1482 Videsh Sanchar Nigam Ltd. Aut
7018 826 1498 AT&T WorldNet Services
6197 773 1029 BellSouth Network Solutions,
23577 767 776 Korea Telecom (ATM-MPLS)
9498 730 1046 BHARTI BT INTERNET LTD.
17488 694 879 Hathway IP Over Cable Interne
4766 606 815 Korea Telecom (KIX)
4323 575 1362 Time Warner Telecom
19916 564 569 OLM LLC
15270 560 598 PaeTec.net -a division of Pae
6517 541 585 Yipes Communications, Inc.
5668 522 664 CenturyTel Internet Holdings,
4668 511 521 LG-EDS Systems Inc.
18101 509 608 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:89 12:1826 15:19 16:3 17:6
18:13 20:35 24:993 25:1 32:57 33:3
38:360 40:64 41:396 44:2 47:8 52:3
55:3 56:3 57:21 58:480 59:414 60:384
61:987 62:940 63:1981 64:3304 65:2375 66:3569
67:906 68:677 69:2012 70:466 71:106 72:1434
73:7 74:750 75:263 76:151 77:416 78:271
79:11 80:873 81:787 82:535 83:350 84:617
85:827 86:356 87:590 88:281 89:1019 90:38
91:729 92:5 96:2 97:6 98:9 116:428
117:224 118:43 121:337 122:643 123:208 124:700
125:1041 128:309 129:194 130:141 131:369 132:57
133:9 134:193 135:34 136:192 137:82 138:152
139:76 140:519 141:145 142:372 143:254 144:324
145:50 146:326 147:127 148:485 149:184 150:167
151:137 152:93 153:121 154:11 155:261 156:164
157:222 158:160 159:187 160:132 161:100 162:190
163:184 164:498 165:397 166:291 167:308 168:515
169:129 170:419 171:24 172:5 189:115 190:1206
192:5727 193:4031 194:3203 195:2463 196:924 198:3799
199:3227 200:5234 201:1254 202:7474 203:7812 204:3983
205:1996 206:2437 207:2785 208:2942 209:3596 210:2501
211:1078 212:1306 213:1523 214:419 215:44 216:4093
217:1190 218:320 219:396 220:1012 221:407 222:267
End of report
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