Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Sep 14 18:03:25 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 15 Sep, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/09/15/0400
Analysis Summary
----------------
BGP routing table entries examined: 230723
Prefixes after maximum aggregation: 120516
Deaggregation factor: 1.91
Unique aggregates announced to Internet: 112273
Total ASes present in the Internet Routing Table: 26196
Prefixes per ASN: 8.81
Origin-only ASes present in the Internet Routing Table: 22813
Origin ASes announcing only one prefix: 11115
Transit ASes present in the Internet Routing Table: 3383
Transit-only ASes present in the Internet Routing Table: 72
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: 17
Unregistered ASNs in the Routing Table: 10
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: 12
Number of addresses announced to Internet: 1776529760
Equivalent to 105 /8s, 227 /16s and 177 /24s
Percentage of available address space announced: 47.9
Percentage of allocated address space announced: 62.8
Percentage of available address space allocated: 76.4
Total number of prefixes smaller than registry allocations: 122544
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 53768
Total APNIC prefixes after maximum aggregation: 20884
APNIC Deaggregation factor: 2.57
Prefixes being announced from the APNIC address blocks: 50695
Unique aggregates announced from the APNIC address blocks: 22534
APNIC Region origin ASes present in the Internet Routing Table: 3047
APNIC Prefixes per ASN: 16.64
APNIC Region origin ASes announcing only one prefix: 803
APNIC Region transit ASes present in the Internet Routing Table: 462
Average APNIC Region AS path length visible: 3.7
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 313705632
Equivalent to 18 /8s, 178 /16s and 196 /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: 108944
Total ARIN prefixes after maximum aggregation: 63047
ARIN Deaggregation factor: 1.73
Prefixes being announced from the ARIN address blocks: 80263
Unique aggregates announced from the ARIN address blocks: 31964
ARIN Region origin ASes present in the Internet Routing Table: 11828
ARIN Prefixes per ASN: 6.79
ARIN Region origin ASes announcing only one prefix: 4536
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: 17
Number of ARIN addresses announced to Internet: 345002880
Equivalent to 20 /8s, 144 /16s and 83 /24s
Percentage of available ARIN address space announced: 76.2
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
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: 48429
Total RIPE prefixes after maximum aggregation: 31070
RIPE Deaggregation factor: 1.56
Prefixes being announced from the RIPE address blocks: 44838
Unique aggregates announced from the RIPE address blocks: 29638
RIPE Region origin ASes present in the Internet Routing Table: 10179
RIPE Prefixes per ASN: 4.40
RIPE Region origin ASes announcing only one prefix: 5429
RIPE Region transit ASes present in the Internet Routing Table: 1617
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 326794112
Equivalent to 19 /8s, 122 /16s and 123 /24s
Percentage of available RIPE address space announced: 74.9
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: 16828
Total LACNIC prefixes after maximum aggregation: 4469
LACNIC Deaggregation factor: 3.77
Prefixes being announced from the LACNIC address blocks: 14925
Unique aggregates announced from the LACNIC address blocks: 7943
LACNIC Region origin ASes present in the Internet Routing Table: 864
LACNIC Prefixes per ASN: 17.27
LACNIC Region origin ASes announcing only one prefix: 280
LACNIC Region transit ASes present in the Internet Routing Table: 146
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 42266112
Equivalent to 2 /8s, 132 /16s and 238 /24s
Percentage of available LACNIC address space announced: 63.0
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: 2741
Total AfriNIC prefixes after maximum aggregation: 1034
AfriNIC Deaggregation factor: 2.65
Prefixes being announced from the AfriNIC address blocks: 2297
Unique aggregates announced from the AfriNIC address blocks: 1336
AfriNIC Region origin ASes present in the Internet Routing Table: 205
AfriNIC Prefixes per ASN: 11.20
AfriNIC Region origin ASes announcing only one prefix: 67
AfriNIC Region transit ASes present in the Internet Routing Table: 35
Average AfriNIC Region AS path length visible: 4.1
Max AfriNIC Region AS path length visible: 20
Number of AfriNIC addresses announced to Internet: 7463168
Equivalent to 0 /8s, 113 /16s and 225 /24s
Percentage of available AfriNIC address space announced: 22.2
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 1341 383 69 Videsh Sanchar Nigam Ltd. Aut
9583 1130 81 405 Sify Limited
4134 1077 11220 293 CHINANET-BACKBONE
9498 1001 532 64 BHARTI BT INTERNET LTD.
4766 809 5441 321 Korea Telecom (KIX)
17488 806 52 58 Hathway IP Over Cable Interne
23577 788 34 683 Korea Telecom (ATM-MPLS)
7545 723 159 120 TPG Internet Pty Ltd
18101 596 119 50 Reliance Infocom Ltd Internet
4812 547 974 94 China Telecom (Shanghai)
1221 537 1950 418 Telstra Pty Ltd
4668 517 68 10 LG-EDS Systems Inc.
17676 502 10903 63 Softbank BB Corp.
4808 486 779 116 CNCGROUP IP network: China169
9443 467 122 77 Primus Telecommunications
4802 437 117 153 Wantree Development
7474 381 218 268 SingTel Optus Pty Ltd
17974 378 130 13 PT TELEKOMUNIKASI INDONESIA
9829 359 257 10 BSNL National Internet Backbo
4837 356 5104 167 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1469 6121 992 AT&T WorldNet Services
4323 1323 990 370 Time Warner Telecom
2386 1217 635 732 AT&T Data Communications Serv
11492 1146 112 17 Cable One
6478 1137 326 161 AT&T Worldnet Services
6197 1033 718 509 BellSouth Network Solutions,
18566 1024 288 9 Covad Communications
174 973 6780 859 Cogent Communications
7011 921 279 549 Citizens Utilities
701 874 6573 679 UUNET Technologies, Inc.
20115 821 753 440 Charter Communications
1239 803 2719 565 Sprint
19262 774 2745 184 Verizon Global Networks
22773 772 2149 50 Cox Communications, Inc.
209 751 3836 592 Qwest
5668 659 176 23 CenturyTel Internet Holdings,
3356 636 10817 362 Level 3 Communications, LLC
6517 590 165 35 Yipes Communications, Inc.
852 577 1096 362 Telus Advanced Communications
15270 576 160 38 PaeTec.net -a division of Pae
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 494 1923 396 UUNET - Commercial IP service
24863 367 57 40 LINKdotNET AS number
9116 351 168 26 Goldenlines main autonomous s
3301 318 1457 296 TeliaNet Sweden
3320 315 6035 262 Deutsche Telekom AG
6746 290 130 266 Dynamic Network Technologies,
680 269 2045 257 DFN-IP service G-WiN
8551 264 252 37 Bezeq International
8708 262 420 241 Romania Data Systems S.A.
3215 258 2424 98 France Telecom Transpac
8220 256 444 239 COLT Telecommunications
3352 229 1866 39 Ibernet, Internet Access Netw
5089 224 1658 54 NTL Group Limited
3269 223 2839 73 TELECOM ITALIA
9121 214 1441 24 TTnet Autonomous System
3292 197 1380 177 TDC Tele Danmark
3300 194 172 95 AUCS Communications Services
12479 194 578 6 Uni2 Autonomous System
1257 192 1195 170 SWIPnet Swedish IP Network
3246 186 253 176 Song Networks
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 902 1974 206 UniNet S.A. de C.V.
11830 514 299 9 Instituto Costarricense de El
16814 426 26 9 NSS, S.A.
11172 374 114 60 Servicios Alestra S.A de C.V
7303 350 166 52 Telecom Argentina Stet-France
6471 329 75 33 ENTEL CHILE S.A.
14522 329 28 7 SatNet S.A.
22047 317 246 13 VTR PUNTO NET S.A.
14117 284 19 15 Telefonica del Sur S.A.
10481 278 104 9 Prima S.A.
11664 276 30 13 Keytech SA
10620 235 65 22 TVCABLE BOGOTA
11556 235 128 3 Cable-Wireless Panama
6147 228 178 24 Telefonica Del Peru
6503 201 170 82 AVANTEL, S.A.
23216 197 17 46 RAMtelecom Telecomunicaciones
20299 180 25 31 NEWCOM AMERICAS
8163 177 11 6 METROTEL REDES S.A.
19169 171 12 18 Telconet
21826 171 30 58 INTERCABLE
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 285 870 226 The Internet Solution
8452 219 188 7 TEDATA
6713 142 135 11 Itissalat Al-MAGHRIB
2018 140 301 115 Tertiary Education Network
33783 125 8 12 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 76 84 4 Nile Online
2905 75 174 72 The Internetworking Company o
23889 69 24 15 MAURITIUS TELECOM
2561 62 6 2 Egyptian Universities Network
15706 56 12 4 Sudatel Internet Exchange Aut
33774 47 29 25 AS Number for Telecom Algeria
5713 46 294 36 Telkom SA Ltd
16637 42 21 29 Johnnic e-Ventures
8524 30 2 13 AUCEGYPT Autonomous System
21280 29 4 4 Swift Global Kenya Ltd.Is an
12455 28 6 3 Jambonet Autonomous system
10798 27 16 1 Standard Bank of South Africa
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1341 1272 Videsh Sanchar Nigam Ltd. Aut
11492 1146 1129 Cable One
18566 1024 1015 Covad Communications
6478 1137 976 AT&T Worldnet Services
4323 1323 953 Time Warner Telecom
9498 1001 937 BHARTI BT INTERNET LTD.
4134 1077 784 CHINANET-BACKBONE
17488 806 748 Hathway IP Over Cable Interne
9583 1130 725 Sify Limited
22773 772 722 Cox Communications, Inc.
8151 902 696 UniNet S.A. de C.V.
5668 659 636 CenturyTel Internet Holdings,
7545 723 603 TPG Internet Pty Ltd
19262 774 590 Verizon Global Networks
6517 590 555 Yipes Communications, Inc.
18101 596 546 Reliance Infocom Ltd Internet
15270 576 538 PaeTec.net -a division of Pae
6197 1033 524 BellSouth Network Solutions,
19916 568 517 OLM LLC
4668 517 507 LG-EDS Systems Inc.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
43460 UNALLOCATED 77.75.64.0/24 39180 SARL MWSP
43200 UNALLOCATED 81.26.32.0/19 15659 NEXTGENTEL Autonomou
43200 UNALLOCATED 85.89.192.0/19 15659 NEXTGENTEL Autonomou
43408 UNALLOCATED 87.238.207.0/24 31742 Sotaconnect UK
42789 UNALLOCATED 91.150.224.0/19 16095 Jay.net autonomous S
43618 UNALLOCATED 91.195.74.0/23 43576 LTD "KuMIR TELECOM"
64586 PRIVATE 192.170.73.0/24 4845 Chung Hsiao East Roa
42789 UNALLOCATED 193.33.190.0/23 16095 Jay.net autonomous S
43200 UNALLOCATED 193.161.232.0/22 15659 NEXTGENTEL Autonomou
43200 UNALLOCATED 193.161.252.0/24 15659 NEXTGENTEL Autonomou
43311 UNALLOCATED 195.248.250.0/23 174 Cogent Communication
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
101.13.13.0/24 8764 LIETUVOS-TELEKOMAS Autonomous
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 /8:19 /9:9 /10:15 /11:37 /12:135
/13:262 /14:471 /15:922 /16:9614 /17:4075 /18:6622
/19:13957 /20:16253 /21:14957 /22:19245 /23:20167 /24:121574
/25:760 /26:1020 /27:514 /28:82 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1138 1146 Cable One
6478 1136 1137 AT&T Worldnet Services
18566 1006 1024 Covad Communications
9583 972 1130 Sify Limited
2386 909 1217 AT&T Data Communications Serv
7018 820 1469 AT&T WorldNet Services
7011 813 921 Citizens Utilities
6197 786 1033 BellSouth Network Solutions,
23577 779 788 Korea Telecom (ATM-MPLS)
4755 749 1341 Videsh Sanchar Nigam Ltd. Aut
9498 673 1001 BHARTI BT INTERNET LTD.
17488 629 806 Hathway IP Over Cable Interne
4766 607 809 Korea Telecom (KIX)
19916 563 568 OLM LLC
6517 555 590 Yipes Communications, Inc.
4323 554 1323 Time Warner Telecom
15270 540 576 PaeTec.net -a division of Pae
5668 524 659 CenturyTel Internet Holdings,
4668 507 517 LG-EDS Systems Inc.
18101 502 596 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:80 12:1804 13:1 15:20
16:3 17:3 18:13 20:36 24:966 25:1
32:60 33:3 38:348 40:60 41:321 44:2
47:4 52:4 55:3 56:3 57:24 58:473
59:406 60:369 61:993 62:920 63:2016 64:3199
65:2388 66:3408 67:800 68:661 69:1975 70:447
71:105 72:1399 73:4 74:652 75:259 76:125
77:348 78:156 80:830 81:831 82:586 83:361
84:621 85:816 86:343 87:517 88:279 89:978
90:24 91:548 96:1 97:6 98:2 101:1
116:322 117:172 118:19 121:289 122:606 123:176
124:663 125:988 128:271 129:212 130:139 131:361
132:55 133:9 134:197 135:34 136:188 137:82
138:154 139:74 140:505 141:174 142:384 143:255
144:304 145:46 146:331 147:125 148:414 149:148
150:111 151:159 152:87 153:119 154:3 155:259
156:161 157:218 158:158 159:173 160:120 161:95
162:175 163:182 164:485 165:396 166:284 167:298
168:516 169:122 170:388 171:22 172:2 189:74
190:1104 192:5703 193:3993 194:3198 195:2281 196:971
198:3820 199:3216 200:5283 201:1195 202:7364 203:7709
204:3905 205:1973 206:2416 207:2847 208:2843 209:3463
210:2470 211:1088 212:1313 213:1473 214:420 215:44
216:3983 217:1198 218:323 219:372 220:1011 221:413
222:263
End of report
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