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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 16 Jul, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/07/16/0400
Analysis Summary
----------------
BGP routing table entries examined: 225502
Prefixes after maximum aggregation: 118263
Deaggregation factor: 1.91
Unique aggregates announced to Internet: 108558
Total ASes present in the Internet Routing Table: 25675
Prefixes per ASN: 8.78
Origin-only ASes present in the Internet Routing Table: 22389
Origin ASes announcing only one prefix: 10888
Transit ASes present in the Internet Routing Table: 3286
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: 25
Max AS path prepend of ASN (16327) 21
Prefixes from unregistered ASNs in the Routing Table: 8
Unregistered ASNs in the Routing Table: 11
Prefixes from 32-bit ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1737250656
Equivalent to 103 /8s, 140 /16s and 87 /24s
Percentage of available address space announced: 46.9
Percentage of allocated address space announced: 62.1
Percentage of available address space allocated: 75.5
Total number of prefixes smaller than registry allocations: 118589
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 52713
Total APNIC prefixes after maximum aggregation: 20204
APNIC Deaggregation factor: 2.61
Prefixes being announced from the APNIC address blocks: 49596
Unique aggregates announced from the APNIC address blocks: 20799
APNIC Region origin ASes present in the Internet Routing Table: 3003
APNIC Prefixes per ASN: 16.52
APNIC Region origin ASes announcing only one prefix: 804
APNIC Region transit ASes present in the Internet Routing Table: 452
Average APNIC Region AS path length visible: 3.7
Max APNIC Region AS path length visible: 25
Number of APNIC addresses announced to Internet: 304408992
Equivalent to 18 /8s, 36 /16s and 233 /24s
Percentage of available APNIC address space announced: 75.4
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: 107333
Total ARIN prefixes after maximum aggregation: 62286
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 79005
Unique aggregates announced from the ARIN address blocks: 31274
ARIN Region origin ASes present in the Internet Routing Table: 11680
ARIN Prefixes per ASN: 6.76
ARIN Region origin ASes announcing only one prefix: 4501
ARIN Region transit ASes present in the Internet Routing Table: 1064
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 339099712
Equivalent to 20 /8s, 54 /16s and 64 /24s
Percentage of available ARIN address space announced: 74.9
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: 47370
Total RIPE prefixes after maximum aggregation: 30463
RIPE Deaggregation factor: 1.56
Prefixes being announced from the RIPE address blocks: 43719
Unique aggregates announced from the RIPE address blocks: 28898
RIPE Region origin ASes present in the Internet Routing Table: 9900
RIPE Prefixes per ASN: 4.42
RIPE Region origin ASes announcing only one prefix: 5255
RIPE Region transit ASes present in the Internet Routing Table: 1566
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 24
Number of RIPE addresses announced to Internet: 322499392
Equivalent to 19 /8s, 56 /16s and 243 /24s
Percentage of available RIPE address space announced: 80.1
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, 80/5, 88/6, 92/7, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 15508
Total LACNIC prefixes after maximum aggregation: 4278
LACNIC Deaggregation factor: 3.63
Prefixes being announced from the LACNIC address blocks: 13554
Unique aggregates announced from the LACNIC address blocks: 7655
LACNIC Region origin ASes present in the Internet Routing Table: 823
LACNIC Prefixes per ASN: 16.47
LACNIC Region origin ASes announcing only one prefix: 267
LACNIC Region transit ASes present in the Internet Routing Table: 140
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 40539392
Equivalent to 2 /8s, 106 /16s and 149 /24s
Percentage of available LACNIC address space announced: 60.4
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: 2570
Total AfriNIC prefixes after maximum aggregation: 1022
AfriNIC Deaggregation factor: 2.51
Prefixes being announced from the AfriNIC address blocks: 2101
Unique aggregates announced from the AfriNIC address blocks: 1279
AfriNIC Region origin ASes present in the Internet Routing Table: 196
AfriNIC Prefixes per ASN: 10.72
AfriNIC Region origin ASes announcing only one prefix: 61
AfriNIC Region transit ASes present in the Internet Routing Table: 32
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 6297600
Equivalent to 0 /8s, 96 /16s and 24 /24s
Percentage of available AfriNIC address space announced: 18.8
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
4134 1355 10715 285 CHINANET-BACKBONE
4755 1277 382 71 Videsh Sanchar Nigam Ltd. Aut
9583 1042 108 17 Sify Limited
9498 970 533 70 BHARTI BT INTERNET LTD.
23577 793 34 687 Korea Telecom (ATM-MPLS)
4766 784 4929 314 Korea Telecom (KIX)
17488 721 63 54 Hathway IP Over Cable Interne
7545 689 149 111 TPG Internet Pty Ltd
18101 566 117 41 Reliance Infocom Ltd Internet
1221 545 1951 424 Telstra Pty Ltd
4812 522 907 93 China Telecom (Shanghai)
4668 512 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
9443 472 122 77 Primus Telecommunications
4802 411 105 151 Wantree Development
7474 411 218 270 SingTel Optus Pty Ltd
17974 371 130 13 PT TELEKOMUNIKASI INDONESIA
2907 362 1701 302 SINET Japan
9829 362 258 14 BSNL National Internet Backbo
4808 355 666 118 CNCGROUP IP network: China169
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1460 6058 985 AT&T WorldNet Services
4323 1322 1021 375 Time Warner Telecom
2386 1212 632 753 AT&T Data Communications Serv
6478 1129 371 149 AT&T Worldnet Services
11492 1099 107 27 Cable One
6197 1024 717 507 BellSouth Network Solutions,
18566 1014 288 9 Covad Communications
174 964 6776 854 Cogent Communications
701 945 6565 722 UUNET Technologies, Inc.
7011 851 252 537 Citizens Utilities
1239 814 2741 581 Sprint
20115 800 734 428 Charter Communications
209 762 3872 596 Qwest
19262 759 2755 185 Verizon Global Networks
22773 739 1893 50 Cox Communications, Inc.
5668 613 169 21 CenturyTel Internet Holdings,
7029 612 488 79 Alltel Information Services,
855 575 254 73 Canadian Research Network
852 572 1093 363 Telus Advanced Communications
19916 568 49 51 OLM LLC
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2119 513 1075 136 Telenor Internet Access
702 500 1921 401 UUNET - Commercial IP service
24863 358 56 41 LINKdotNET AS number
9116 316 168 25 Goldenlines main autonomous s
3301 311 1456 291 TeliaNet Sweden
3320 309 6034 256 Deutsche Telekom AG
6746 280 129 256 Dynamic Network Technologies,
5089 268 1658 53 NTL Group Limited
680 265 2045 256 DFN-IP service G-WiN
3215 255 2376 96 France Telecom Transpac
8220 250 444 242 COLT Telecommunications
8708 250 420 239 Romania Data Systems S.A.
8551 223 213 28 Bezeq International
3269 222 2775 74 TELECOM ITALIA
3352 218 1864 41 Ibernet, Internet Access Netw
9121 210 1441 24 TTnet Autonomous System
1257 194 1195 172 SWIPnet Swedish IP Network
3292 194 1379 174 TDC Tele Danmark
12479 190 578 6 Uni2 Autonomous System
3246 185 253 176 Song Networks
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 853 1910 208 UniNet S.A. de C.V.
11830 483 299 9 Instituto Costarricense de El
11172 372 116 63 Servicios Alestra S.A de C.V
16814 361 22 8 NSS, S.A.
22047 318 246 13 VTR PUNTO NET S.A.
7303 306 148 35 Telecom Argentina Stet-France
6471 303 74 33 ENTEL CHILE S.A.
14117 279 19 15 Telefonica del Sur S.A.
11556 231 128 4 Cable-Wireless Panama
6147 225 174 26 Telefonica Del Peru
10620 209 59 15 TVCABLE BOGOTA
6503 208 172 85 AVANTEL, S.A.
23216 196 16 43 RAMtelecom Telecomunicaciones
10481 181 72 8 Prima S.A.
14522 177 28 7 SatNet S.A.
8163 176 11 9 METROTEL REDES S.A.
7738 156 506 23 Telecomunicacoes da Bahia S.A
20299 156 23 12 NEWCOM AMERICAS
21826 156 27 59 INTERCABLE
7910 154 11 30 ANDINET ON LINE
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 277 867 221 The Internet Solution
8452 232 188 7 TEDATA
6713 142 135 11 Itissalat Al-MAGHRIB
2018 136 301 111 Tertiary Education Network
5536 124 8 10 Internet Egypt Network
33783 122 8 12 EEPAD TISP TELECOM & INTERNET
24835 86 48 6 RAYA Telecom - Egypt
2905 76 174 73 The Internetworking Company o
15475 76 84 4 Nile Online
2561 62 6 2 Egyptian Universities Network
15706 56 12 4 Sudatel Internet Exchange Aut
23889 51 16 15 MAURITIUS TELECOM
5713 46 294 36 Telkom SA Ltd
33774 44 28 23 AS Number for Telecom Algeria
16637 37 21 29 Johnnic e-Ventures
33776 35 2 6 Starcomms Nigeria Limited
8524 32 2 8 AUCEGYPT Autonomous System
12455 32 6 3 Jambonet Autonomous system
10798 23 1 14 Standard Bank of South Africa
21491 22 17 2 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1277 1206 Videsh Sanchar Nigam Ltd. Aut
11492 1099 1072 Cable One
4134 1355 1070 CHINANET-BACKBONE
9583 1042 1025 Sify Limited
18566 1014 1005 Covad Communications
6478 1129 980 AT&T Worldnet Services
4323 1322 947 Time Warner Telecom
9498 970 900 BHARTI BT INTERNET LTD.
22773 739 689 Cox Communications, Inc.
17488 721 667 Hathway IP Over Cable Interne
8151 853 645 UniNet S.A. de C.V.
5668 613 592 CenturyTel Internet Holdings,
7545 689 578 TPG Internet Pty Ltd
19262 759 574 Verizon Global Networks
7029 612 533 Alltel Information Services,
18101 566 525 Reliance Infocom Ltd Internet
6517 561 524 Yipes Communications, Inc.
6197 1024 517 BellSouth Network Solutions,
19916 568 517 OLM LLC
15270 555 517 PaeTec.net -a division of Pae
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65332 PRIVATE 63.166.106.192/27 1803 SPRINT
43185 UNALLOCATED 77.95.208.0/21 12779 ITGATE.Net
38347 UNALLOCATED 116.212.160.0/21 9389 BEIJING SHENZHOU GRE
38347 UNALLOCATED 116.212.168.0/21 9389 BEIJING SHENZHOU GRE
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
65101 PRIVATE 203.127.145.0/24 9255 Singapore Telecom
22895 UNALLOCATED 216.174.38.0/24 19094 Adelphia Business So
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 /11:36 /12:129
/13:254 /14:468 /15:902 /16:9548 /17:4017 /18:6488
/19:13723 /20:15960 /21:14454 /22:18815 /23:19745 /24:118572
/25:774 /26:984 /27:480 /28:76 /29:8 /30:14
/31:0 /32:13
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1119 1129 AT&T Worldnet Services
11492 1090 1099 Cable One
18566 996 1014 Covad Communications
2386 903 1212 AT&T Data Communications Serv
9583 876 1042 Sify Limited
7018 794 1460 AT&T WorldNet Services
23577 784 793 Korea Telecom (ATM-MPLS)
6197 778 1024 BellSouth Network Solutions,
7011 750 851 Citizens Utilities
4755 673 1277 Videsh Sanchar Nigam Ltd. Aut
9498 644 970 BHARTI BT INTERNET LTD.
4766 588 784 Korea Telecom (KIX)
19916 563 568 OLM LLC
4323 554 1322 Time Warner Telecom
17488 543 721 Hathway IP Over Cable Interne
6517 526 561 Yipes Communications, Inc.
15270 519 555 PaeTec.net -a division of Pae
4668 502 512 LG-EDS Systems Inc.
5668 480 613 CenturyTel Internet Holdings,
18101 478 566 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:83 9:1 12:1808 15:19
16:3 17:3 18:11 20:37 24:938 25:1
32:50 33:3 38:332 40:60 41:207 44:2
47:3 52:4 55:3 56:3 57:25 58:430
59:378 60:334 61:986 62:873 63:1984 64:3132
65:2355 66:3305 67:743 68:625 69:1898 70:433
71:106 72:1352 73:2 74:569 75:269 76:72
77:281 78:19 80:822 81:817 82:664 83:382
84:489 85:861 86:342 87:455 88:286 89:906
90:7 91:416 97:6 98:4 116:233 117:49
121:230 122:575 123:131 124:828 125:942 128:289
129:222 130:140 131:360 132:54 133:9 134:195
135:38 136:180 137:81 138:156 139:72 140:496
141:173 142:373 143:234 144:297 145:45 146:324
147:120 148:399 149:144 150:113 151:160 152:90
153:127 154:2 155:255 156:153 157:213 158:159
159:162 160:102 161:93 162:219 163:180 164:462
165:409 166:294 167:290 168:500 169:120 170:403
171:20 172:1 189:61 190:746 192:5734 193:3916
194:3159 195:2237 196:966 198:3804 199:3274 200:4920
201:1099 202:7389 203:7568 204:3964 205:2015 206:2407
207:2834 208:2722 209:3510 210:2391 211:933 212:1300
213:1483 214:410 215:41 216:4011 217:1150 218:362
219:387 220:990 221:399 222:266
End of report
