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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 31 Aug, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/08/31/0400
Analysis Summary
----------------
BGP routing table entries examined: 229972
Prefixes after maximum aggregation: 119908
Deaggregation factor: 1.92
Unique aggregates announced to Internet: 110904
Total ASes present in the Internet Routing Table: 26104
Prefixes per ASN: 8.81
Origin-only ASes present in the Internet Routing Table: 22729
Origin ASes announcing only one prefix: 11082
Transit ASes present in the Internet Routing Table: 3375
Transit-only ASes present in the Internet Routing Table: 74
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: 8
Unregistered ASNs in the Routing Table: 5
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: 11
Number of addresses announced to Internet: 1756348896
Equivalent to 104 /8s, 175 /16s and 193 /24s
Percentage of available address space announced: 47.4
Percentage of allocated address space announced: 62.0
Percentage of available address space allocated: 76.4
Total number of prefixes smaller than registry allocations: 121860
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 53997
Total APNIC prefixes after maximum aggregation: 20584
APNIC Deaggregation factor: 2.62
Prefixes being announced from the APNIC address blocks: 50909
Unique aggregates announced from the APNIC address blocks: 21542
APNIC Region origin ASes present in the Internet Routing Table: 3049
APNIC Prefixes per ASN: 16.70
APNIC Region origin ASes announcing only one prefix: 812
APNIC Region transit ASes present in the Internet Routing Table: 464
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 313362080
Equivalent to 18 /8s, 173 /16s and 134 /24s
Percentage of available APNIC address space announced: 77.6
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: 108784
Total ARIN prefixes after maximum aggregation: 62953
ARIN Deaggregation factor: 1.73
Prefixes being announced from the ARIN address blocks: 80134
Unique aggregates announced from the ARIN address blocks: 31873
ARIN Region origin ASes present in the Internet Routing Table: 11788
ARIN Prefixes per ASN: 6.80
ARIN Region origin ASes announcing only one prefix: 4521
ARIN Region transit ASes present in the Internet Routing Table: 1090
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 14
Number of ARIN addresses announced to Internet: 342812928
Equivalent to 20 /8s, 110 /16s and 233 /24s
Percentage of available ARIN address space announced: 75.7
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: 48003
Total RIPE prefixes after maximum aggregation: 30905
RIPE Deaggregation factor: 1.55
Prefixes being announced from the RIPE address blocks: 44417
Unique aggregates announced from the RIPE address blocks: 29471
RIPE Region origin ASes present in the Internet Routing Table: 10129
RIPE Prefixes per ASN: 4.39
RIPE Region origin ASes announcing only one prefix: 5399
RIPE Region transit ASes present in the Internet Routing Table: 1608
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 325779072
Equivalent to 19 /8s, 106 /16s and 254 /24s
Percentage of available RIPE address space announced: 74.7
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: 16436
Total LACNIC prefixes after maximum aggregation: 4428
LACNIC Deaggregation factor: 3.71
Prefixes being announced from the LACNIC address blocks: 14525
Unique aggregates announced from the LACNIC address blocks: 7826
LACNIC Region origin ASes present in the Internet Routing Table: 856
LACNIC Prefixes per ASN: 16.97
LACNIC Region origin ASes announcing only one prefix: 281
LACNIC Region transit ASes present in the Internet Routing Table: 143
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 42168832
Equivalent to 2 /8s, 131 /16s and 114 /24s
Percentage of available LACNIC address space announced: 62.8
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: 2738
Total AfriNIC prefixes after maximum aggregation: 1026
AfriNIC Deaggregation factor: 2.67
Prefixes being announced from the AfriNIC address blocks: 2298
Unique aggregates announced from the AfriNIC address blocks: 1336
AfriNIC Region origin ASes present in the Internet Routing Table: 207
AfriNIC Prefixes per ASN: 11.10
AfriNIC Region origin ASes announcing only one prefix: 69
AfriNIC Region transit ASes present in the Internet Routing Table: 35
Average AfriNIC Region AS path length visible: 3.9
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 7466752
Equivalent to 0 /8s, 113 /16s and 239 /24s
Percentage of available AfriNIC address space announced: 22.3
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 1344 383 74 Videsh Sanchar Nigam Ltd. Aut
4134 1338 11186 289 CHINANET-BACKBONE
9583 1132 100 106 Sify Limited
9498 995 532 66 BHARTI BT INTERNET LTD.
4766 803 5441 319 Korea Telecom (KIX)
17488 796 52 55 Hathway IP Over Cable Interne
23577 787 34 683 Korea Telecom (ATM-MPLS)
7545 728 159 120 TPG Internet Pty Ltd
18101 593 119 49 Reliance Infocom Ltd Internet
4812 547 968 96 China Telecom (Shanghai)
1221 542 1951 424 Telstra Pty Ltd
4668 516 68 10 LG-EDS Systems Inc.
17676 503 10919 64 Softbank BB Corp.
4808 484 779 115 CNCGROUP IP network: China169
9443 464 122 77 Primus Telecommunications
4802 432 116 158 Wantree Development
7474 382 216 270 SingTel Optus Pty Ltd
4837 366 5104 167 chinanet IDC center beijing n
17974 366 130 13 PT TELEKOMUNIKASI INDONESIA
9829 363 258 14 BSNL National Internet Backbo
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1471 6074 994 AT&T WorldNet Services
4323 1324 992 373 Time Warner Telecom
2386 1215 618 748 AT&T Data Communications Serv
11492 1138 110 11 Cable One
6478 1129 323 166 AT&T Worldnet Services
6197 1029 718 510 BellSouth Network Solutions,
18566 1022 288 9 Covad Communications
174 975 6780 863 Cogent Communications
701 943 6578 722 UUNET Technologies, Inc.
7011 923 279 555 Citizens Utilities
20115 817 751 436 Charter Communications
1239 804 2721 565 Sprint
19262 775 2743 186 Verizon Global Networks
22773 763 2149 50 Cox Communications, Inc.
209 739 3836 584 Qwest
5668 657 176 23 CenturyTel Internet Holdings,
6517 588 165 37 Yipes Communications, Inc.
3356 587 10812 345 Level 3 Communications, LLC
852 576 1095 361 Telus Advanced Communications
15270 574 160 38 PaeTec.net -a division of Pae
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 492 1923 394 UUNET - Commercial IP service
24863 364 57 41 LINKdotNET AS number
9116 344 168 26 Goldenlines main autonomous s
3301 314 1456 294 TeliaNet Sweden
3320 314 6035 261 Deutsche Telekom AG
6746 288 130 264 Dynamic Network Technologies,
680 266 2045 256 DFN-IP service G-WiN
8708 262 420 241 Romania Data Systems S.A.
8220 260 445 243 COLT Telecommunications
3215 258 2424 98 France Telecom Transpac
8551 248 244 28 Bezeq International
3352 227 1868 38 Ibernet, Internet Access Netw
5089 224 1658 54 NTL Group Limited
3269 221 2775 73 TELECOM ITALIA
9121 214 1441 24 TTnet Autonomous System
3292 195 1379 175 TDC Tele Danmark
1257 192 1195 170 SWIPnet Swedish IP Network
12479 192 578 6 Uni2 Autonomous System
3300 191 172 92 AUCS Communications Services
3246 187 253 177 Song Networks
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 904 1974 207 UniNet S.A. de C.V.
11830 479 299 9 Instituto Costarricense de El
16814 426 26 9 NSS, S.A.
11172 375 115 61 Servicios Alestra S.A de C.V
7303 339 177 45 Telecom Argentina Stet-France
14522 333 28 7 SatNet S.A.
6471 322 75 33 ENTEL CHILE S.A.
22047 318 246 13 VTR PUNTO NET S.A.
14117 281 19 15 Telefonica del Sur S.A.
10481 278 104 9 Prima S.A.
11556 235 128 3 Cable-Wireless Panama
6147 227 178 24 Telefonica Del Peru
10620 218 61 20 TVCABLE BOGOTA
6503 201 170 82 AVANTEL, S.A.
23216 196 16 44 RAMtelecom Telecomunicaciones
20299 180 25 31 NEWCOM AMERICAS
8163 177 11 6 METROTEL REDES S.A.
21826 171 30 58 INTERCABLE
7738 169 506 23 Telecomunicacoes da Bahia S.A
19169 164 12 16 Telconet
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 283 868 224 The Internet Solution
8452 230 188 7 TEDATA
6713 142 135 11 Itissalat Al-MAGHRIB
2018 140 301 115 Tertiary Education Network
33783 126 8 11 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 75 84 4 Nile Online
2905 74 174 71 The Internetworking Company o
2561 62 6 2 Egyptian Universities Network
23889 60 24 15 MAURITIUS TELECOM
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 46 21 29 Johnnic e-Ventures
8524 31 2 10 AUCEGYPT Autonomous System
12455 29 6 3 Jambonet Autonomous system
21280 29 4 4 Swift Global Kenya Ltd.Is an
10798 27 16 1 Standard Bank of South Africa
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1344 1270 Videsh Sanchar Nigam Ltd. Aut
11492 1138 1127 Cable One
4134 1338 1049 CHINANET-BACKBONE
9583 1132 1026 Sify Limited
18566 1022 1013 Covad Communications
6478 1129 963 AT&T Worldnet Services
4323 1324 951 Time Warner Telecom
9498 995 929 BHARTI BT INTERNET LTD.
17488 796 741 Hathway IP Over Cable Interne
22773 763 713 Cox Communications, Inc.
8151 904 697 UniNet S.A. de C.V.
5668 657 634 CenturyTel Internet Holdings,
7545 728 608 TPG Internet Pty Ltd
19262 775 589 Verizon Global Networks
6517 588 551 Yipes Communications, Inc.
18101 593 544 Reliance Infocom Ltd Internet
15270 574 536 PaeTec.net -a division of Pae
6197 1029 519 BellSouth Network Solutions,
19916 568 517 OLM LLC
4668 516 506 LG-EDS Systems Inc.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
64586 PRIVATE 192.170.73.0/24 4845 Chung Hsiao East Roa
64501 RESERVED 195.189.160.0/24 35041 Crystone Autonomous
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
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 /11:37 /12:134
/13:260 /14:471 /15:919 /16:9618 /17:4072 /18:6601
/19:13975 /20:16246 /21:14967 /22:19154 /23:20097 /24:120966
/25:782 /26:1031 /27:506 /28:81 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1130 1138 Cable One
6478 1128 1129 AT&T Worldnet Services
18566 1004 1022 Covad Communications
9583 966 1132 Sify Limited
2386 907 1215 AT&T Data Communications Serv
7011 818 923 Citizens Utilities
7018 812 1471 AT&T WorldNet Services
6197 782 1029 BellSouth Network Solutions,
23577 778 787 Korea Telecom (ATM-MPLS)
4755 726 1344 Videsh Sanchar Nigam Ltd. Aut
9498 667 995 BHARTI BT INTERNET LTD.
17488 619 796 Hathway IP Over Cable Interne
4766 601 803 Korea Telecom (KIX)
19916 563 568 OLM LLC
4323 557 1324 Time Warner Telecom
6517 554 588 Yipes Communications, Inc.
15270 538 574 PaeTec.net -a division of Pae
5668 522 657 CenturyTel Internet Holdings,
4668 506 516 LG-EDS Systems Inc.
18101 499 593 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:87 12:1813 13:1 15:19
16:3 17:3 18:13 20:36 24:966 25:1
32:56 33:3 38:349 40:60 41:331 44:2
47:4 52:4 55:3 56:3 57:24 58:471
59:386 60:367 61:1016 62:931 63:2001 64:3188
65:2370 66:3403 67:788 68:659 69:1967 70:448
71:105 72:1393 73:2 74:641 75:262 76:126
77:329 78:48 80:822 81:826 82:576 83:357
84:600 85:805 86:336 87:488 88:279 89:969
90:25 91:520 97:5 116:315 117:153 118:1
121:270 122:593 123:168 124:673 125:986 128:275
129:216 130:139 131:363 132:55 133:9 134:195
135:34 136:189 137:80 138:152 139:72 140:500
141:173 142:379 143:255 144:302 145:46 146:328
147:123 148:412 149:147 150:110 151:159 152:87
153:118 154:3 155:263 156:160 157:214 158:158
159:171 160:113 161:96 162:175 163:180 164:477
165:394 166:275 167:297 168:517 169:122 170:387
171:22 172:2 189:71 190:1002 192:5746 193:3971
194:3190 195:2289 196:976 198:3817 199:3276 200:5111
201:1175 202:7385 203:7695 204:3929 205:1975 206:2418
207:2803 208:2817 209:3481 210:2460 211:1088 212:1331
213:1476 214:419 215:41 216:3984 217:1192 218:364
219:382 220:1025 221:414 222:261
End of report
