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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 19 Oct, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/10/19/0400
Analysis Summary
----------------
BGP routing table entries examined: 234677
Prefixes after maximum aggregation: 121448
Deaggregation factor: 1.93
Unique aggregates announced to Internet: 113404
Total ASes present in the Internet Routing Table: 26499
Prefixes per ASN: 8.86
Origin-only ASes present in the Internet Routing Table: 23070
Origin ASes announcing only one prefix: 11242
Transit ASes present in the Internet Routing Table: 3429
Transit-only ASes present in the Internet Routing Table: 78
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: 21
Unregistered ASNs in the Routing Table: 6
Prefixes from 32-bit ASNs in the Routing Table: 7
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1796021376
Equivalent to 107 /8s, 13 /16s and 28 /24s
Percentage of available address space announced: 48.5
Percentage of allocated address space announced: 62.7
Percentage of available address space allocated: 77.3
Total number of prefixes smaller than registry allocations: 108505
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 54816
Total APNIC prefixes after maximum aggregation: 20660
APNIC Deaggregation factor: 2.65
Prefixes being announced from the APNIC address blocks: 51748
Unique aggregates announced from the APNIC address blocks: 21899
APNIC Region origin ASes present in the Internet Routing Table: 3069
APNIC Prefixes per ASN: 16.86
APNIC Region origin ASes announcing only one prefix: 814
APNIC Region transit ASes present in the Internet Routing Table: 469
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 322196672
Equivalent to 19 /8s, 52 /16s and 84 /24s
Percentage of available APNIC address space announced: 79.8
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: 110475
Total ARIN prefixes after maximum aggregation: 63566
ARIN Deaggregation factor: 1.74
Prefixes being announced from the ARIN address blocks: 81620
Unique aggregates announced from the ARIN address blocks: 32308
ARIN Region origin ASes present in the Internet Routing Table: 11902
ARIN Prefixes per ASN: 6.86
ARIN Region origin ASes announcing only one prefix: 4576
ARIN Region transit ASes present in the Internet Routing Table: 1101
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 15
Number of ARIN addresses announced to Internet: 347845504
Equivalent to 20 /8s, 187 /16s and 179 /24s
Percentage of available ARIN address space announced: 76.8
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: 49483
Total RIPE prefixes after maximum aggregation: 31628
RIPE Deaggregation factor: 1.56
Prefixes being announced from the RIPE address blocks: 45857
Unique aggregates announced from the RIPE address blocks: 30314
RIPE Region origin ASes present in the Internet Routing Table: 10367
RIPE Prefixes per ASN: 4.42
RIPE Region origin ASes announcing only one prefix: 5504
RIPE Region transit ASes present in the Internet Routing Table: 1635
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 333514624
Equivalent to 19 /8s, 225 /16s and 7 /24s
Percentage of available RIPE address space announced: 76.5
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: 17235
Total LACNIC prefixes after maximum aggregation: 4545
LACNIC Deaggregation factor: 3.79
Prefixes being announced from the LACNIC address blocks: 15280
Unique aggregates announced from the LACNIC address blocks: 8560
LACNIC Region origin ASes present in the Internet Routing Table: 873
LACNIC Prefixes per ASN: 17.50
LACNIC Region origin ASes announcing only one prefix: 283
LACNIC Region transit ASes present in the Internet Routing Table: 153
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 44399104
Equivalent to 2 /8s, 165 /16s and 122 /24s
Percentage of available LACNIC address space announced: 44.1
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: 2639
Total AfriNIC prefixes after maximum aggregation: 1035
AfriNIC Deaggregation factor: 2.55
Prefixes being announced from the AfriNIC address blocks: 2298
Unique aggregates announced from the AfriNIC address blocks: 1371
AfriNIC Region origin ASes present in the Internet Routing Table: 209
AfriNIC Prefixes per ASN: 11.00
AfriNIC Region origin ASes announcing only one prefix: 65
AfriNIC Region transit ASes present in the Internet Routing Table: 37
Average AfriNIC Region AS path length visible: 4.0
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 7598848
Equivalent to 0 /8s, 115 /16s and 243 /24s
Percentage of available AfriNIC address space announced: 22.6
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 1467 383 67 Videsh Sanchar Nigam Ltd. Aut
4134 1099 11532 299 CHINANET-BACKBONE
9498 1010 550 68 BHARTI BT INTERNET LTD.
9583 1007 108 17 Sify Limited
17488 835 54 63 Hathway IP Over Cable Interne
4766 805 5441 321 Korea Telecom (KIX)
23577 790 34 683 Korea Telecom (ATM-MPLS)
7545 733 159 118 TPG Internet Pty Ltd
18101 606 119 52 Reliance Infocom Ltd Internet
4802 571 133 142 Wantree Development
1221 537 1950 417 Telstra Pty Ltd
9829 530 1312 9 BSNL National Internet Backbo
4812 524 858 77 China Telecom (Shanghai)
4668 518 68 10 LG-EDS Systems Inc.
17676 502 10903 63 Softbank BB Corp.
4808 493 792 119 CNCGROUP IP network: China169
9443 440 121 72 Primus Telecommunications
7474 381 218 267 SingTel Optus Pty Ltd
17557 369 57 189 Pakistan Telecom
17974 363 130 13 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1482 6148 996 AT&T WorldNet Services
4323 1363 1006 360 Time Warner Telecom
2386 1232 627 741 AT&T Data Communications Serv
11492 1156 116 15 Cable One
6478 1117 329 169 AT&T Worldnet Services
6197 1029 718 513 BellSouth Network Solutions,
18566 1028 288 9 Covad Communications
174 978 6786 842 Cogent Communications
7011 961 290 558 Citizens Utilities
701 882 6575 689 UUNET Technologies, Inc.
20115 837 765 447 Charter Communications
1239 802 2720 562 Sprint
22773 796 2133 54 Cox Communications, Inc.
19262 789 2847 180 Verizon Global Networks
209 745 3793 586 Qwest
3356 717 10857 384 Level 3 Communications, LLC
5668 661 176 17 CenturyTel Internet Holdings,
6517 588 165 36 Yipes Communications, Inc.
852 581 1093 358 Telus Advanced Communications
19916 569 49 47 OLM LLC
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 474 1920 387 UUNET - Commercial IP service
24863 372 58 36 LINKdotNET AS number
9116 343 168 27 Goldenlines main autonomous s
3301 316 1441 293 TeliaNet Sweden
3320 315 6035 262 Deutsche Telekom AG
8551 296 284 38 Bezeq International
6746 279 129 255 Dynamic Network Technologies,
8708 271 421 243 Romania Data Systems S.A.
680 269 2045 257 DFN-IP service G-WiN
8866 265 62 24 Bulgarian Telecommunication C
3215 262 2480 100 France Telecom Transpac
8220 255 444 237 COLT Telecommunications
3352 232 1914 41 Ibernet, Internet Access Netw
3269 228 2935 75 TELECOM ITALIA
9121 212 1442 25 TTnet Autonomous System
3300 198 172 96 AUCS Communications Services
3292 195 1380 177 TDC Tele Danmark
12479 194 578 6 Uni2 Autonomous System
1257 193 1194 175 SWIPnet Swedish IP Network
3246 190 253 180 Song Networks
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1052 2196 215 UniNet S.A. de C.V.
11830 514 299 9 Instituto Costarricense de El
16814 427 27 10 NSS, S.A.
11172 380 114 60 Servicios Alestra S.A de C.V
7303 350 173 46 Telecom Argentina Stet-France
6471 347 75 36 ENTEL CHILE S.A.
14522 331 27 22 SatNet S.A.
22047 317 246 13 VTR PUNTO NET S.A.
14117 285 19 15 Telefonica del Sur S.A.
10481 261 104 9 Prima S.A.
10620 256 71 27 TVCABLE BOGOTA
11556 237 128 4 Cable-Wireless Panama
6147 230 178 24 Telefonica Del Peru
23216 208 16 44 RAMtelecom Telecomunicaciones
6503 207 170 81 AVANTEL, S.A.
28573 194 305 26 NET Servicos de Comunicao S.A
7738 193 538 24 Telecomunicacoes da Bahia S.A
8163 183 11 8 METROTEL REDES S.A.
21826 181 32 50 INTERCABLE
20299 180 25 30 NEWCOM AMERICAS
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 279 885 226 The Internet Solution
8452 220 188 7 TEDATA
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 77 84 4 Nile Online
2905 75 174 72 The Internetworking Company o
23889 73 24 15 MAURITIUS TELECOM
15706 55 12 4 Sudatel Internet Exchange Aut
33783 50 8 9 EEPAD TISP TELECOM & INTERNET
5713 46 294 36 Telkom SA Ltd
16637 42 21 29 Johnnic e-Ventures
33774 38 28 23 AS Number for Telecom Algeria
12455 36 6 3 Jambonet Autonomous system
8524 32 2 10 AUCEGYPT Autonomous System
10798 26 16 1 Standard Bank of South Africa
29975 26 10 9 Vodacom
21280 25 4 4 Swift Global Kenya Ltd.Is an
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1467 1400 Videsh Sanchar Nigam Ltd. Aut
11492 1156 1141 Cable One
18566 1028 1019 Covad Communications
4323 1363 1003 Time Warner Telecom
9583 1007 990 Sify Limited
6478 1117 948 AT&T Worldnet Services
9498 1010 942 BHARTI BT INTERNET LTD.
8151 1052 837 UniNet S.A. de C.V.
4134 1099 800 CHINANET-BACKBONE
17488 835 772 Hathway IP Over Cable Interne
22773 796 742 Cox Communications, Inc.
5668 661 644 CenturyTel Internet Holdings,
7545 733 615 TPG Internet Pty Ltd
19262 789 609 Verizon Global Networks
18101 606 554 Reliance Infocom Ltd Internet
6517 588 552 Yipes Communications, Inc.
19916 569 522 OLM LLC
9829 530 521 BSNL National Internet Backbo
6197 1029 516 BellSouth Network Solutions,
4668 518 508 LG-EDS Systems Inc.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
64250 RESERVED 59.144.44.0/24 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.64.0/19 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.96.0/20 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.112.0/21 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.176.0/21 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.188.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.192.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.196.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.200.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.204.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.208.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.212.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.216.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.220.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.240.0/23 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.242.0/23 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.244.0/23 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.246.0/23 9498 BHARTI BT INTERNET L
64250 RESERVED 122.171.0.0/24 9498 BHARTI BT INTERNET L
64250 RESERVED 122.171.1.0/24 9498 BHARTI BT INTERNET L
65000 PRIVATE 216.136.11.0/24 27182 Peregrine Capital Ma
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
172.33.1.0/24 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 /10:16 /11:38 /12:135
/13:267 /14:477 /15:939 /16:9689 /17:4129 /18:6696
/19:14391 /20:16574 /21:15371 /22:19701 /23:20602 /24:123190
/25:773 /26:1016 /27:538 /28:94 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1147 1156 Cable One
6478 1116 1117 AT&T Worldnet Services
18566 1010 1028 Covad Communications
2386 922 1232 AT&T Data Communications Serv
9583 875 1007 Sify Limited
7011 848 961 Citizens Utilities
4755 837 1467 Videsh Sanchar Nigam Ltd. Aut
7018 812 1482 AT&T WorldNet Services
23577 781 790 Korea Telecom (ATM-MPLS)
6197 773 1029 BellSouth Network Solutions,
9498 693 1010 BHARTI BT INTERNET LTD.
17488 658 835 Hathway IP Over Cable Interne
4766 603 805 Korea Telecom (KIX)
4323 580 1363 Time Warner Telecom
19916 564 569 OLM LLC
6517 543 588 Yipes Communications, Inc.
5668 521 661 CenturyTel Internet Holdings,
4668 508 518 LG-EDS Systems Inc.
18101 507 606 Reliance Infocom Ltd Internet
15270 485 520 PaeTec.net -a division of Pae
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:84 12:1789 15:19 16:3 17:5
18:13 20:36 24:980 25:1 32:60 33:3
38:355 40:64 41:334 44:2 47:8 52:3
55:3 56:3 57:23 58:468 59:416 60:379
61:989 62:923 63:1983 64:3277 65:2373 66:3551
67:830 68:675 69:2001 70:464 71:107 72:1419
73:6 74:717 75:261 76:146 77:395 78:244
80:844 81:784 82:529 83:357 84:616 85:835
86:347 87:572 88:289 89:1027 90:37 91:650
92:2 96:1 97:6 98:4 116:392 117:198
118:40 121:319 122:613 123:204 124:658 125:1035
128:275 129:195 130:136 131:366 132:55 133:9
134:193 135:34 136:188 137:83 138:157 139:74
140:502 141:150 142:369 143:254 144:317 145:46
146:335 147:130 148:484 149:186 150:111 151:137
152:89 153:121 154:11 155:261 156:161 157:222
158:160 159:195 160:136 161:98 162:179 163:183
164:495 165:396 166:290 167:307 168:498 169:125
170:400 171:22 172:2 189:98 190:1124 192:5720
193:3982 194:3216 195:2475 196:940 198:3797 199:3239
200:5228 201:1230 202:7359 203:7895 204:3958 205:2006
206:2424 207:2801 208:2897 209:3479 210:2409 211:1077
212:1294 213:1496 214:416 215:44 216:4100 217:1211
218:318 219:385 220:997 221:396 222:263
End of report
