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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 16 Oct, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/10/16/0400
Analysis Summary
----------------
BGP routing table entries examined: 234491
Prefixes after maximum aggregation: 121653
Deaggregation factor: 1.93
Unique aggregates announced to Internet: 114313
Total ASes present in the Internet Routing Table: 26480
Prefixes per ASN: 8.86
Origin-only ASes present in the Internet Routing Table: 23059
Origin ASes announcing only one prefix: 11237
Transit ASes present in the Internet Routing Table: 3421
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: 21
Unregistered ASNs in the Routing Table: 5
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: 12
Number of addresses announced to Internet: 1791659040
Equivalent to 106 /8s, 202 /16s and 140 /24s
Percentage of available address space announced: 48.3
Percentage of allocated address space announced: 62.6
Percentage of available address space allocated: 77.3
Total number of prefixes smaller than registry allocations: 108434
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 54893
Total APNIC prefixes after maximum aggregation: 21056
APNIC Deaggregation factor: 2.61
Prefixes being announced from the APNIC address blocks: 51825
Unique aggregates announced from the APNIC address blocks: 22902
APNIC Region origin ASes present in the Internet Routing Table: 3071
APNIC Prefixes per ASN: 16.88
APNIC Region origin ASes announcing only one prefix: 817
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: 321161184
Equivalent to 19 /8s, 36 /16s and 135 /24s
Percentage of available APNIC address space announced: 79.6
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: 110276
Total ARIN prefixes after maximum aggregation: 63448
ARIN Deaggregation factor: 1.74
Prefixes being announced from the ARIN address blocks: 81482
Unique aggregates announced from the ARIN address blocks: 32235
ARIN Region origin ASes present in the Internet Routing Table: 11899
ARIN Prefixes per ASN: 6.85
ARIN Region origin ASes announcing only one prefix: 4577
ARIN Region transit ASes present in the Internet Routing Table: 1102
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 15
Number of ARIN addresses announced to Internet: 347404672
Equivalent to 20 /8s, 180 /16s and 249 /24s
Percentage of available ARIN address space announced: 76.7
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: 49339
Total RIPE prefixes after maximum aggregation: 31554
RIPE Deaggregation factor: 1.56
Prefixes being announced from the RIPE address blocks: 45795
Unique aggregates announced from the RIPE address blocks: 30223
RIPE Region origin ASes present in the Internet Routing Table: 10350
RIPE Prefixes per ASN: 4.42
RIPE Region origin ASes announcing only one prefix: 5497
RIPE Region transit ASes present in the Internet Routing Table: 1620
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 330562560
Equivalent to 19 /8s, 179 /16s and 252 /24s
Percentage of available RIPE address space announced: 75.8
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: 17223
Total LACNIC prefixes after maximum aggregation: 4540
LACNIC Deaggregation factor: 3.79
Prefixes being announced from the LACNIC address blocks: 15251
Unique aggregates announced from the LACNIC address blocks: 8622
LACNIC Region origin ASes present in the Internet Routing Table: 873
LACNIC Prefixes per ASN: 17.47
LACNIC Region origin ASes announcing only one prefix: 281
LACNIC Region transit ASes present in the Internet Routing Table: 154
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 44395008
Equivalent to 2 /8s, 165 /16s and 106 /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: 2731
Total AfriNIC prefixes after maximum aggregation: 1041
AfriNIC Deaggregation factor: 2.62
Prefixes being announced from the AfriNIC address blocks: 2308
Unique aggregates announced from the AfriNIC address blocks: 1377
AfriNIC Region origin ASes present in the Internet Routing Table: 209
AfriNIC Prefixes per ASN: 11.04
AfriNIC Region origin ASes announcing only one prefix: 65
AfriNIC Region transit ASes present in the Internet Routing Table: 39
Average AfriNIC Region AS path length visible: 4.0
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 7605504
Equivalent to 0 /8s, 116 /16s and 13 /24s
Percentage of available AfriNIC address space announced: 22.7
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 1449 383 67 Videsh Sanchar Nigam Ltd. Aut
9583 1120 81 420 Sify Limited
4134 1095 11484 297 CHINANET-BACKBONE
9498 1010 550 68 BHARTI BT INTERNET LTD.
17488 839 54 66 Hathway IP Over Cable Interne
4766 811 5442 321 Korea Telecom (KIX)
23577 790 34 683 Korea Telecom (ATM-MPLS)
7545 729 159 117 TPG Internet Pty Ltd
18101 604 119 51 Reliance Infocom Ltd Internet
4802 573 132 144 Wantree Development
4812 545 958 93 China Telecom (Shanghai)
1221 538 1950 418 Telstra Pty Ltd
9829 530 1312 9 BSNL National Internet Backbo
4668 518 68 10 LG-EDS Systems Inc.
17676 502 10903 63 Softbank BB Corp.
4808 492 792 119 CNCGROUP IP network: China169
9443 454 121 72 Primus Telecommunications
7474 379 217 266 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 1481 6148 994 AT&T WorldNet Services
4323 1362 1006 362 Time Warner Telecom
2386 1229 628 740 AT&T Data Communications Serv
11492 1157 114 13 Cable One
6478 1127 330 140 AT&T Worldnet Services
6197 1029 718 513 BellSouth Network Solutions,
18566 1028 288 9 Covad Communications
174 973 6786 847 Cogent Communications
7011 959 289 557 Citizens Utilities
701 878 6574 685 UUNET Technologies, Inc.
20115 837 765 447 Charter Communications
1239 803 2720 564 Sprint
22773 794 2133 54 Cox Communications, Inc.
19262 786 2840 184 Verizon Global Networks
209 744 3810 585 Qwest
3356 680 10804 370 Level 3 Communications, LLC
5668 658 176 17 CenturyTel Internet Holdings,
6517 588 165 36 Yipes Communications, Inc.
852 581 1093 358 Telus Advanced Communications
6198 568 613 259 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 474 1920 387 UUNET - Commercial IP service
24863 371 58 37 LINKdotNET AS number
9116 354 168 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 270 421 242 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 231 1898 40 Ibernet, Internet Access Netw
3269 226 2903 74 TELECOM ITALIA
9121 212 1442 25 TTnet Autonomous System
3300 197 172 96 AUCS Communications Services
3292 195 1380 177 TDC Tele Danmark
1257 194 1195 171 SWIPnet Swedish IP Network
12479 193 578 6 Uni2 Autonomous System
3246 189 253 179 Song Networks
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1047 2192 220 UniNet S.A. de C.V.
11830 514 299 9 Instituto Costarricense de El
16814 432 27 10 NSS, S.A.
11172 380 114 60 Servicios Alestra S.A de C.V
7303 351 169 48 Telecom Argentina Stet-France
14522 349 30 6 SatNet S.A.
6471 343 75 35 ENTEL CHILE 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
6503 208 170 82 AVANTEL, S.A.
23216 208 16 44 RAMtelecom Telecomunicaciones
7738 187 538 24 Telecomunicacoes da Bahia S.A
28573 184 301 23 NET Servicos de Comunicao 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 144 135 11 Itissalat Al-MAGHRIB
2018 140 299 115 Tertiary Education Network
33783 127 8 11 EEPAD TISP TELECOM & INTERNET
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
33774 48 29 25 AS Number for Telecom Algeria
5713 46 294 36 Telkom SA Ltd
16637 42 21 29 Johnnic e-Ventures
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 1449 1382 Videsh Sanchar Nigam Ltd. Aut
11492 1157 1144 Cable One
18566 1028 1019 Covad Communications
4323 1362 1000 Time Warner Telecom
6478 1127 987 AT&T Worldnet Services
9498 1010 942 BHARTI BT INTERNET LTD.
8151 1047 827 UniNet S.A. de C.V.
4134 1095 798 CHINANET-BACKBONE
17488 839 773 Hathway IP Over Cable Interne
22773 794 740 Cox Communications, Inc.
9583 1120 700 Sify Limited
5668 658 641 CenturyTel Internet Holdings,
7545 729 612 TPG Internet Pty Ltd
19262 786 602 Verizon Global Networks
18101 604 553 Reliance Infocom Ltd Internet
6517 588 552 Yipes Communications, Inc.
9829 530 521 BSNL National Internet Backbo
19916 568 517 OLM LLC
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
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
172.11.12.0/24 1803 SPRINT
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 /11:37 /12:135
/13:265 /14:476 /15:937 /16:9661 /17:4106 /18:6693
/19:14334 /20:16540 /21:15348 /22:19661 /23:20558 /24:123232
/25:796 /26:1022 /27:541 /28:92 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1149 1157 Cable One
6478 1126 1127 AT&T Worldnet Services
18566 1010 1028 Covad Communications
9583 962 1120 Sify Limited
2386 919 1229 AT&T Data Communications Serv
7011 846 959 Citizens Utilities
4755 820 1449 Videsh Sanchar Nigam Ltd. Aut
7018 814 1481 AT&T WorldNet Services
23577 781 790 Korea Telecom (ATM-MPLS)
6197 773 1029 BellSouth Network Solutions,
9498 692 1010 BHARTI BT INTERNET LTD.
17488 658 839 Hathway IP Over Cable Interne
4766 609 811 Korea Telecom (KIX)
4323 580 1362 Time Warner Telecom
19916 563 568 OLM LLC
6517 543 588 Yipes Communications, Inc.
5668 518 658 CenturyTel Internet Holdings,
4668 508 518 LG-EDS Systems Inc.
18101 505 604 Reliance Infocom Ltd Internet
15270 479 514 PaeTec.net -a division of Pae
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:87 12:1793 15:20 16:3 17:5
18:13 20:36 24:980 25:1 32:60 33:3
38:355 40:64 41:326 44:2 47:8 52:3
55:3 56:3 57:23 58:468 59:414 60:379
61:983 62:917 63:1989 64:3264 65:2380 66:3537
67:830 68:677 69:1989 70:462 71:108 72:1418
73:6 74:713 75:260 76:145 77:391 78:241
80:845 81:800 82:578 83:368 84:638 85:835
86:348 87:570 88:282 89:1019 90:37 91:628
96:1 97:6 98:4 101:1 116:385 117:198
118:40 121:319 122:613 123:202 124:684 125:1037
128:275 129:195 130:137 131:368 132:55 133:9
134:193 135:34 136:188 137:83 138:156 139:74
140:416 141:171 142:371 143:254 144:320 145:45
146:335 147:130 148:481 149:186 150:111 151:157
152:89 153:121 154:11 155:257 156:161 157:220
158:159 159:197 160:135 161:98 162:180 163:182
164:495 165:397 166:290 167:305 168:495 169:125
170:398 171:22 172:3 189:92 190:1123 192:5721
193:3982 194:3219 195:2488 196:962 198:3798 199:3236
200:5213 201:1226 202:7397 203:7902 204:3957 205:2006
206:2424 207:2801 208:2900 209:3482 210:2446 211:1082
212:1272 213:1494 214:415 215:45 216:4083 217:1200
218:318 219:384 220:1001 221:411 222:263
End of report
