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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 17 Jul, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/07/17/0400
Analysis Summary
----------------
BGP routing table entries examined: 225772
Prefixes after maximum aggregation: 118304
Deaggregation factor: 1.91
Unique aggregates announced to Internet: 108604
Total ASes present in the Internet Routing Table: 25692
Prefixes per ASN: 8.79
Origin-only ASes present in the Internet Routing Table: 22393
Origin ASes announcing only one prefix: 10897
Transit ASes present in the Internet Routing Table: 3299
Transit-only ASes present in the Internet Routing Table: 73
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: 1738012192
Equivalent to 103 /8s, 151 /16s and 246 /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: 118824
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 52910
Total APNIC prefixes after maximum aggregation: 20231
APNIC Deaggregation factor: 2.62
Prefixes being announced from the APNIC address blocks: 49793
Unique aggregates announced from the APNIC address blocks: 20838
APNIC Region origin ASes present in the Internet Routing Table: 3010
APNIC Prefixes per ASN: 16.54
APNIC Region origin ASes announcing only one prefix: 803
APNIC Region transit ASes present in the Internet Routing Table: 455
Average APNIC Region AS path length visible: 3.7
Max APNIC Region AS path length visible: 25
Number of APNIC addresses announced to Internet: 305015712
Equivalent to 18 /8s, 46 /16s and 43 /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: 107343
Total ARIN prefixes after maximum aggregation: 62271
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 79005
Unique aggregates announced from the ARIN address blocks: 31283
ARIN Region origin ASes present in the Internet Routing Table: 11681
ARIN Prefixes per ASN: 6.76
ARIN Region origin ASes announcing only one prefix: 4502
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: 339107648
Equivalent to 20 /8s, 54 /16s and 95 /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: 47401
Total RIPE prefixes after maximum aggregation: 30483
RIPE Deaggregation factor: 1.55
Prefixes being announced from the RIPE address blocks: 43766
Unique aggregates announced from the RIPE address blocks: 28903
RIPE Region origin ASes present in the Internet Routing Table: 9910
RIPE Prefixes per ASN: 4.42
RIPE Region origin ASes announcing only one prefix: 5266
RIPE Region transit ASes present in the Internet Routing Table: 1572
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 24
Number of RIPE addresses announced to Internet: 322539008
Equivalent to 19 /8s, 57 /16s and 142 /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: 15525
Total LACNIC prefixes after maximum aggregation: 4284
LACNIC Deaggregation factor: 3.62
Prefixes being announced from the LACNIC address blocks: 13565
Unique aggregates announced from the LACNIC address blocks: 7645
LACNIC Region origin ASes present in the Internet Routing Table: 823
LACNIC Prefixes per ASN: 16.48
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: 40557568
Equivalent to 2 /8s, 106 /16s and 220 /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: 2585
Total AfriNIC prefixes after maximum aggregation: 1025
AfriNIC Deaggregation factor: 2.52
Prefixes being announced from the AfriNIC address blocks: 2104
Unique aggregates announced from the AfriNIC address blocks: 1277
AfriNIC Region origin ASes present in the Internet Routing Table: 194
AfriNIC Prefixes per ASN: 10.85
AfriNIC Region origin ASes announcing only one prefix: 59
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: 15
Number of AfriNIC addresses announced to Internet: 6307328
Equivalent to 0 /8s, 96 /16s and 62 /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 1357 10843 286 CHINANET-BACKBONE
4755 1275 382 71 Videsh Sanchar Nigam Ltd. Aut
9583 1118 108 17 Sify Limited
9498 972 533 70 BHARTI BT INTERNET LTD.
23577 793 34 688 Korea Telecom (ATM-MPLS)
4766 786 4929 314 Korea Telecom (KIX)
17488 721 63 54 Hathway IP Over Cable Interne
7545 688 150 111 TPG Internet Pty Ltd
18101 568 117 41 Reliance Infocom Ltd Internet
1221 544 1951 423 Telstra Pty Ltd
4812 523 911 94 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 372 130 13 PT TELEKOMUNIKASI INDONESIA
2907 362 1701 302 SINET Japan
9829 362 258 14 BSNL National Internet Backbo
4808 356 668 119 CNCGROUP IP network: China169
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1462 6058 987 AT&T WorldNet Services
4323 1322 1021 375 Time Warner Telecom
2386 1211 632 754 AT&T Data Communications Serv
6478 1129 371 149 AT&T Worldnet Services
11492 1099 107 27 Cable One
6197 1028 744 496 BellSouth Network Solutions,
18566 1014 288 9 Covad Communications
174 963 6776 853 Cogent Communications
701 947 6581 723 UUNET Technologies, Inc.
7011 857 252 537 Citizens Utilities
1239 812 2741 581 Sprint
20115 800 734 428 Charter Communications
19262 759 2755 185 Verizon Global Networks
209 756 3865 590 Qwest
22773 740 1893 50 Cox Communications, Inc.
5668 616 169 21 CenturyTel Internet Holdings,
7029 613 488 79 Alltel Information Services,
855 575 254 73 Canadian Research Network
852 572 1093 363 Telus Advanced Communications
6198 568 613 260 BellSouth Network Solutions,
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 317 168 25 Goldenlines main autonomous s
3301 311 1456 291 TeliaNet Sweden
3320 309 6034 256 Deutsche Telekom AG
6746 281 129 257 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 855 1910 209 UniNet S.A. de C.V.
11830 483 299 9 Instituto Costarricense de El
11172 373 116 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 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 156 506 23 Telecomunicacoes da Bahia S.A
20299 156 23 12 NEWCOM AMERICAS
21826 156 27 59 INTERCABLE
7910 155 11 30 ANDINET ON LINE
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 274 867 220 The Internet Solution
8452 232 188 7 TEDATA
6713 142 135 11 Itissalat Al-MAGHRIB
2018 139 301 114 Tertiary Education Network
5536 124 8 10 Internet Egypt Network
33783 124 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 54 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 32 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 1275 1204 Videsh Sanchar Nigam Ltd. Aut
9583 1118 1101 Sify Limited
11492 1099 1072 Cable One
4134 1357 1071 CHINANET-BACKBONE
18566 1014 1005 Covad Communications
6478 1129 980 AT&T Worldnet Services
4323 1322 947 Time Warner Telecom
9498 972 902 BHARTI BT INTERNET LTD.
22773 740 690 Cox Communications, Inc.
17488 721 667 Hathway IP Over Cable Interne
8151 855 646 UniNet S.A. de C.V.
5668 616 595 CenturyTel Internet Holdings,
7545 688 577 TPG Internet Pty Ltd
19262 759 574 Verizon Global Networks
7029 613 534 Alltel Information Services,
6197 1028 532 BellSouth Network Solutions,
18101 568 527 Reliance Infocom Ltd Internet
6517 561 524 Yipes Communications, Inc.
15270 557 519 PaeTec.net -a division of Pae
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
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
/13:255 /14:468 /15:900 /16:9553 /17:4017 /18:6500
/19:13734 /20:15991 /21:14455 /22:18835 /23:19750 /24:118736
/25:775 /26:999 /27:485 /28:77 /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
9583 951 1118 Sify Limited
2386 902 1211 AT&T Data Communications Serv
7018 795 1462 AT&T WorldNet Services
23577 784 793 Korea Telecom (ATM-MPLS)
6197 780 1028 BellSouth Network Solutions,
7011 756 857 Citizens Utilities
4755 671 1275 Videsh Sanchar Nigam Ltd. Aut
9498 646 972 BHARTI BT INTERNET LTD.
4766 590 786 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 521 557 PaeTec.net -a division of Pae
4668 502 512 LG-EDS Systems Inc.
5668 481 616 CenturyTel Internet Holdings,
18101 480 568 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:83 9:1 12:1806 15:19
16:3 17:3 18:11 20:37 24:925 25:1
32:50 33:3 38:334 40:60 41:212 44:2
47:3 52:4 55:3 56:3 57:25 58:474
59:381 60:331 61:985 62:879 63:1983 64:3131
65:2357 66:3300 67:743 68:629 69:1898 70:433
71:106 72:1353 73:2 74:569 75:269 76:73
77:283 78:19 80:828 81:814 82:669 83:382
84:489 85:862 86:341 87:450 88:289 89:916
90:7 91:418 97:6 98:4 116:235 117:49
121:233 122:576 123:131 124:874 125:944 128:289
129:222 130:140 131:362 132:54 133:9 134:195
135:38 136:171 137:81 138:156 139:72 140:496
141:173 142:373 143:235 144:295 145:45 146:324
147:120 148:400 149:145 150:113 151:160 152:90
153:127 154:2 155:254 156:153 157:213 158:158
159:162 160:104 161:93 162:218 163:180 164:460
165:409 166:294 167:290 168:508 169:120 170:408
171:23 172:1 189:61 190:746 192:5738 193:3919
194:3159 195:2240 196:964 198:3800 199:3271 200:4924
201:1099 202:7363 203:7574 204:3968 205:2021 206:2408
207:2833 208:2728 209:3512 210:2429 211:935 212:1304
213:1478 214:407 215:41 216:4000 217:1155 218:361
219:384 220:993 221:408 222:266
End of report
