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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 20 Jul, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/07/20/0400
Analysis Summary
----------------
BGP routing table entries examined: 226081
Prefixes after maximum aggregation: 118512
Deaggregation factor: 1.91
Unique aggregates announced to Internet: 108808
Total ASes present in the Internet Routing Table: 25718
Prefixes per ASN: 8.79
Origin-only ASes present in the Internet Routing Table: 22434
Origin ASes announcing only one prefix: 10915
Transit ASes present in the Internet Routing Table: 3284
Transit-only ASes present in the Internet Routing Table: 75
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 22
Max AS path prepend of ASN (35389) 16
Prefixes from unregistered ASNs in the Routing Table: 6
Unregistered ASNs in the Routing Table: 9
Prefixes from 32-bit ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1738552352
Equivalent to 103 /8s, 160 /16s and 52 /24s
Percentage of available address space announced: 46.9
Percentage of allocated address space announced: 62.2
Percentage of available address space allocated: 75.5
Total number of prefixes smaller than registry allocations: 119101
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 53016
Total APNIC prefixes after maximum aggregation: 20315
APNIC Deaggregation factor: 2.61
Prefixes being announced from the APNIC address blocks: 49933
Unique aggregates announced from the APNIC address blocks: 20869
APNIC Region origin ASes present in the Internet Routing Table: 3015
APNIC Prefixes per ASN: 16.56
APNIC Region origin ASes announcing only one prefix: 805
APNIC Region transit ASes present in the Internet Routing Table: 454
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 305066144
Equivalent to 18 /8s, 46 /16s and 240 /24s
Percentage of available APNIC address space announced: 75.6
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: 107417
Total ARIN prefixes after maximum aggregation: 62367
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 79051
Unique aggregates announced from the ARIN address blocks: 31323
ARIN Region origin ASes present in the Internet Routing Table: 11678
ARIN Prefixes per ASN: 6.77
ARIN Region origin ASes announcing only one prefix: 4502
ARIN Region transit ASes present in the Internet Routing Table: 1057
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 339443392
Equivalent to 20 /8s, 59 /16s and 126 /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: 47501
Total RIPE prefixes after maximum aggregation: 30500
RIPE Deaggregation factor: 1.56
Prefixes being announced from the RIPE address blocks: 43872
Unique aggregates announced from the RIPE address blocks: 28949
RIPE Region origin ASes present in the Internet Routing Table: 9924
RIPE Prefixes per ASN: 4.42
RIPE Region origin ASes announcing only one prefix: 5280
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: 20
Number of RIPE addresses announced to Internet: 322705536
Equivalent to 19 /8s, 60 /16s and 24 /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: 15551
Total LACNIC prefixes after maximum aggregation: 4294
LACNIC Deaggregation factor: 3.62
Prefixes being announced from the LACNIC address blocks: 13588
Unique aggregates announced from the LACNIC address blocks: 7717
LACNIC Region origin ASes present in the Internet Routing Table: 828
LACNIC Prefixes per ASN: 16.41
LACNIC Region origin ASes announcing only one prefix: 268
LACNIC Region transit ASes present in the Internet Routing Table: 138
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 40400640
Equivalent to 2 /8s, 104 /16s and 119 /24s
Percentage of available LACNIC address space announced: 60.2
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: 2589
Total AfriNIC prefixes after maximum aggregation: 1028
AfriNIC Deaggregation factor: 2.52
Prefixes being announced from the AfriNIC address blocks: 2098
Unique aggregates announced from the AfriNIC address blocks: 1270
AfriNIC Region origin ASes present in the Internet Routing Table: 197
AfriNIC Prefixes per ASN: 10.65
AfriNIC Region origin ASes announcing only one prefix: 60
AfriNIC Region transit ASes present in the Internet Routing Table: 34
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 6318080
Equivalent to 0 /8s, 96 /16s and 104 /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 1361 10842 285 CHINANET-BACKBONE
4755 1280 382 71 Videsh Sanchar Nigam Ltd. Aut
9583 1127 108 17 Sify Limited
9498 973 533 70 BHARTI BT INTERNET LTD.
23577 795 34 691 Korea Telecom (ATM-MPLS)
4766 786 4929 314 Korea Telecom (KIX)
17488 725 47 55 Hathway IP Over Cable Interne
7545 693 150 113 TPG Internet Pty Ltd
18101 573 117 41 Reliance Infocom Ltd Internet
1221 545 1951 423 Telstra Pty Ltd
4812 536 913 95 China Telecom (Shanghai)
4668 512 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
9443 472 122 77 Primus Telecommunications
7474 412 218 270 SingTel Optus Pty Ltd
4802 410 105 150 Wantree Development
17974 372 130 13 PT TELEKOMUNIKASI INDONESIA
9829 362 258 14 BSNL National Internet Backbo
4808 360 669 120 CNCGROUP IP network: China169
17557 352 57 174 Pakistan Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1462 6042 986 AT&T WorldNet Services
4323 1321 1021 374 Time Warner Telecom
2386 1208 633 753 AT&T Data Communications Serv
6478 1111 315 162 AT&T Worldnet Services
11492 1101 107 27 Cable One
6197 1026 717 508 BellSouth Network Solutions,
18566 1014 288 9 Covad Communications
174 963 6776 853 Cogent Communications
701 945 6563 722 UUNET Technologies, Inc.
7011 882 255 543 Citizens Utilities
1239 813 2741 584 Sprint
20115 801 735 429 Charter Communications
19262 762 2755 186 Verizon Global Networks
209 761 3879 596 Qwest
22773 727 1893 50 Cox Communications, Inc.
5668 619 169 21 CenturyTel Internet Holdings,
7029 612 488 79 Alltel Information Services,
855 574 254 73 Canadian Research Network
852 573 1093 364 Telus Advanced Communications
6517 568 159 37 Yipes Communications, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2119 513 1075 136 Telenor Internet Access
702 502 1921 403 UUNET - Commercial IP service
24863 348 55 43 LINKdotNET AS number
9116 316 168 25 Goldenlines main autonomous s
3301 312 1456 292 TeliaNet Sweden
3320 309 6034 256 Deutsche Telekom AG
6746 281 129 258 Dynamic Network Technologies,
5089 268 1658 53 NTL Group Limited
680 265 2045 256 DFN-IP service G-WiN
8220 257 444 242 COLT Telecommunications
3215 255 2376 96 France Telecom Transpac
8708 250 420 239 Romania Data Systems S.A.
8551 223 213 28 Bezeq International
3269 222 2775 74 TELECOM ITALIA
3352 220 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 829 1850 225 UniNet S.A. de C.V.
11830 483 299 9 Instituto Costarricense de El
11172 375 116 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 305 148 34 Telecom Argentina Stet-France
6471 303 74 33 ENTEL CHILE S.A.
14117 279 19 15 Telefonica del Sur S.A.
11556 229 128 3 Cable-Wireless Panama
6147 225 174 26 Telefonica Del Peru
10620 214 60 18 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 158 506 23 Telecomunicacoes da Bahia S.A
19169 156 10 22 Telconet
20299 156 23 12 NEWCOM AMERICAS
21826 156 27 59 INTERCABLE
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 281 867 222 The Internet Solution
8452 226 188 7 TEDATA
6713 142 135 11 Itissalat Al-MAGHRIB
2018 138 301 115 Tertiary Education Network
5536 124 8 10 Internet Egypt Network
33783 122 8 11 EEPAD TISP TELECOM & INTERNET
24835 86 48 6 RAYA Telecom - Egypt
2905 76 174 73 The Internetworking Company o
15475 75 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 45 29 24 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 31 6 3 Jambonet Autonomous system
21280 29 4 4 Swift Global Kenya Ltd.Is an
10798 23 1 14 Standard Bank of South Africa
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1280 1209 Videsh Sanchar Nigam Ltd. Aut
9583 1127 1110 Sify Limited
4134 1361 1076 CHINANET-BACKBONE
11492 1101 1074 Cable One
18566 1014 1005 Covad Communications
6478 1111 949 AT&T Worldnet Services
4323 1321 947 Time Warner Telecom
9498 973 903 BHARTI BT INTERNET LTD.
22773 727 677 Cox Communications, Inc.
17488 725 670 Hathway IP Over Cable Interne
8151 829 604 UniNet S.A. de C.V.
5668 619 598 CenturyTel Internet Holdings,
7545 693 580 TPG Internet Pty Ltd
19262 762 576 Verizon Global Networks
7029 612 533 Alltel Information Services,
18101 573 532 Reliance Infocom Ltd Internet
6517 568 531 Yipes Communications, Inc.
15270 557 520 PaeTec.net -a division of Pae
6197 1026 518 BellSouth Network Solutions,
19916 568 517 OLM LLC
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
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
64516 PRIVATE 209.43.37.0/24 7332 IQuest Internet
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 /14:467 /15:902 /16:9558 /17:4021 /18:6500
/19:13733 /20:16022 /21:14498 /22:18860 /23:19807 /24:118907
/25:776 /26:1004 /27:484 /28:68 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1110 1111 AT&T Worldnet Services
11492 1092 1101 Cable One
18566 996 1014 Covad Communications
9583 960 1127 Sify Limited
2386 901 1208 AT&T Data Communications Serv
7018 797 1462 AT&T WorldNet Services
23577 786 795 Korea Telecom (ATM-MPLS)
6197 780 1026 BellSouth Network Solutions,
7011 780 882 Citizens Utilities
4755 675 1280 Videsh Sanchar Nigam Ltd. Aut
9498 647 973 BHARTI BT INTERNET LTD.
4766 590 786 Korea Telecom (KIX)
19916 563 568 OLM LLC
4323 554 1321 Time Warner Telecom
17488 548 725 Hathway IP Over Cable Interne
6517 533 568 Yipes Communications, Inc.
15270 522 557 PaeTec.net -a division of Pae
4668 502 512 LG-EDS Systems Inc.
18101 485 573 Reliance Infocom Ltd Internet
5668 484 619 CenturyTel Internet Holdings,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:83 9:1 12:1799 15:19
16:3 17:3 18:11 20:37 24:938 25:1
32:50 33:3 38:333 40:60 41:213 44:2
47:4 52:4 55:3 56:3 57:25 58:470
59:381 60:335 61:992 62:880 63:1985 64:3136
65:2358 66:3310 67:750 68:626 69:1899 70:435
71:106 72:1350 73:2 74:574 75:256 76:80
77:284 78:20 80:829 81:815 82:667 83:378
84:540 85:863 86:341 87:456 88:288 89:921
90:8 91:424 97:6 98:4 116:243 117:64
121:235 122:576 123:129 124:880 125:948 128:289
129:223 130:140 131:362 132:54 133:9 134:195
135:38 136:186 137:81 138:156 139:72 140:495
141:173 142:373 143:235 144:297 145:45 146:324
147:119 148:401 149:142 150:113 151:161 152:90
153:126 154:2 155:256 156:155 157:213 158:158
159:164 160:102 161:93 162:218 163:180 164:461
165:404 166:293 167:290 168:508 169:120 170:413
171:23 172:1 189:63 190:754 192:5740 193:3916
194:3164 195:2235 196:956 198:3793 199:3281 200:4929
201:1106 202:7373 203:7544 204:3964 205:2011 206:2411
207:2822 208:2716 209:3494 210:2429 211:970 212:1308
213:1479 214:413 215:41 216:4013 217:1161 218:359
219:384 220:1002 221:409 222:266
End of report
