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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 26 Jun, 2006
Analysis Summary
----------------
BGP routing table entries examined: 191614
Prefixes after maximum aggregation: 105162
Unique aggregates announced to Internet: 92851
Total ASes present in the Internet Routing Table: 22524
Origin-only ASes present in the Internet Routing Table: 19600
Origin ASes announcing only one prefix: 9397
Transit ASes present in the Internet Routing Table: 2924
Transit-only ASes present in the Internet Routing Table: 66
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 24
Max AS path prepend of ASN (32609) 16
Prefixes from unregistered ASNs in the Routing Table: 2
Unregistered ASNs in the Routing Table: 3
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 9
Number of addresses announced to Internet: 1543056520
Equivalent to 91 /8s, 249 /16s and 44 /24s
Percentage of available address space announced: 41.6
Percentage of allocated address space announced: 60.2
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 95075
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 40991
Total APNIC prefixes after maximum aggregation: 16899
Prefixes being announced from the APNIC address blocks: 38717
Unique aggregates announced from the APNIC address blocks: 18498
APNIC Region origin ASes present in the Internet Routing Table: 2620
APNIC Region origin ASes announcing only one prefix: 752
APNIC Region transit ASes present in the Internet Routing Table: 396
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 234440928
Equivalent to 13 /8s, 249 /16s and 72 /24s
Percentage of available APNIC address space announced: 73.3
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, 121/8, 122/7, 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: 98323
Total ARIN prefixes after maximum aggregation: 58049
Prefixes being announced from the ARIN address blocks: 72201
Unique aggregates announced from the ARIN address blocks: 26953
ARIN Region origin ASes present in the Internet Routing Table: 10797
ARIN Region origin ASes announcing only one prefix: 4079
ARIN Region transit ASes present in the Internet Routing Table: 988
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 294587904
Equivalent to 17 /8s, 143 /16s and 14 /24s
Percentage of available ARIN address space announced: 76.3
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, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 38262
Total RIPE prefixes after maximum aggregation: 25574
Prefixes being announced from the RIPE address blocks: 35316
Unique aggregates announced from the RIPE address blocks: 23171
RIPE Region origin ASes present in the Internet Routing Table: 8179
RIPE Region origin ASes announcing only one prefix: 4285
RIPE Region transit ASes present in the Internet Routing Table: 1354
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 260969348
Equivalent to 15 /8s, 142 /16s and 19 /24s
Percentage of available RIPE address space announced: 81.9
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
40960-41983
RIPE Address Blocks 62/8, 80/5, 88/6, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 11773
Total LACNIC prefixes after maximum aggregation: 3740
Prefixes being announced from the LACNIC address blocks: 9912
Unique aggregates announced from the LACNIC address blocks: 5549
LACNIC Region origin ASes present in the Internet Routing Table: 703
LACNIC Region origin ASes announcing only one prefix: 235
LACNIC Region transit ASes present in the Internet Routing Table: 132
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 27774720
Equivalent to 1 /8s, 167 /16s and 207 /24s
Percentage of available LACNIC address space announced: 41.4
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: 2263
Total AfriNIC prefixes after maximum aggregation: 900
Prefixes being announced from the AfriNIC address blocks: 1518
Unique aggregates announced from the AfriNIC address blocks: 948
AfriNIC Region origin ASes present in the Internet Routing Table: 159
AfriNIC Region origin ASes announcing only one prefix: 46
AfriNIC Region transit ASes present in the Internet Routing Table: 25
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 11
Number of AfriNIC addresses announced to Internet: 4139008
Equivalent to 0 /8s, 63 /16s and 40 /24s
Percentage of available AfriNIC address space announced: 12.3
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
4134 1238 7261 228 CHINANET-BACKBONE
4755 942 258 74 Videsh Sanchar Nigam Ltd. Aut
9583 908 109 15 Sify Limited
4766 687 4435 302 Korea Telecom (KIX)
9498 676 211 68 BHARTI BT INTERNET LTD.
1221 614 1668 472 Telstra Pty Ltd
7545 546 124 70 TPG Internet Pty Ltd
17488 519 32 10 Hathway IP Over Cable Interne
17676 489 7077 110 Softbank BB Corp.
9443 452 111 83 Primus Telecommunications
18101 419 85 24 Reliance Infocom Ltd Internet
17557 395 31 174 Pakistan Telecom
17974 384 129 14 PT TELEKOMUNIKASI INDONESIA
4802 382 81 169 Wantree Development
2907 335 1733 311 SINET Japan
9929 330 255 61 China Netcom Corp.
17849 303 23 103 Telecommunications Technology
7474 297 211 227 SingTel Optus Pty Ltd
4837 277 3085 123 chinanet IDC center beijing n
9800 276 410 67 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1486 6264 951 AT&T WorldNet Services
4323 1318 744 263 Time Warner Telecom
721 1013 21998 314 DLA Systems Automation Center
6197 1010 630 474 BellSouth Network Solutions,
174 960 5771 897 Cogent Communications
18566 945 272 8 Covad Communications
19029 945 151 107 New Edge Networks
701 939 6753 777 UUNET Technologies, Inc.
2386 912 560 707 AT&T Data Communications Serv
1239 846 2788 598 Sprint
19262 714 2134 187 Verizon Global Networks
20115 713 619 381 Charter Communications
209 687 3682 542 Qwest
22773 668 1741 40 Cox Communications, Inc.
7011 647 217 411 Citizens Utilities
11492 639 87 23 Cable One
852 579 1068 378 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 553 244 64 Canadian Research Network
3602 525 125 104 Sprint Canada, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 569 1951 448 UUNET - Commercial IP service
3301 312 1327 297 TeliaNet Sweden
3352 304 1643 30 Ibernet, Internet Access Netw
3320 286 3989 240 Deutsche Telekom AG
8220 275 470 263 COLT Telecommunications
680 246 2041 243 DFN-IP service G-WiN
6746 239 90 214 Dynamic Network Technologies,
3246 229 462 219 Song Networks
8708 217 276 203 Romania Data Systems S.A.
24863 215 42 10 LINKdotNET AS number
3215 201 1720 96 France Telecom Transpac
3269 201 2182 72 TELECOM ITALIA
8551 201 198 24 Bezeq International
30890 198 18 75 SC Kappa Invexim SRL
1257 193 741 165 SWIPnet Swedish IP Network
8866 187 37 15 Bulgarian Telecommunication C
6830 175 813 37 UPC Distribution Services
786 169 1778 169 The JANET IP Service
9121 169 931 28 TTnet Autonomous System
3300 167 171 97 AUCS Communications Services
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 704 1099 221 UniNet S.A. de C.V.
22047 418 174 11 VTR PUNTO NET S.A.
11172 350 110 84 Servicios Alestra S.A de C.V
16814 328 20 8 NSS, S.A.
6147 267 134 22 Telefonica Del Peru
11664 227 26 14 Keytech SA
14117 207 13 7 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
7303 176 82 24 Telecom Argentina Stet-France
6503 173 151 84 AVANTEL, S.A.
21826 133 17 23 INTERCABLE
11556 132 80 4 Cable-Wireless Panama
19169 128 8 24 Telconet
19429 127 68 41 E.T.B.
14522 126 18 9 SatNet S.A.
14259 119 10 15 GTD Internet S.A.
23216 114 21 9 RAMtelecom Telecomunicaciones
6505 109 88 79 Global One Communicaoes Ltda
7910 105 7 10 ANDINET ON LINE
7738 104 410 20 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 286 803 234 The Internet Solution
8452 165 60 7 TEDATA
6713 154 135 11 Itissalat Al-MAGHRIB
2018 131 314 105 Tertiary Education Network
5536 124 8 15 Internet Egypt Network
24835 116 48 6 RAYA Telecom - Egypt
15475 111 84 4 Nile Online
33783 105 6 2 EEPAD TISP TELECOM & INTERNET
2905 77 157 68 The Internetworking Company o
20928 60 16 3 Noor Advanced Technologies AS
15706 44 8 3 Sudatel Internet Exchange Aut
5713 39 294 35 Telkom SA Ltd
33774 31 7 21 AS Number for Telecom Algeria
12455 25 6 3 Jambonet Autonomous system
16637 24 14 22 Johnnic e-Ventures
8524 22 1 5 AUCEGYPT Autonomous System
10798 22 1 13 Standard Bank of South Africa
23889 22 8 11 MAURITIUS TELECOM
33766 21 2 1 Nyala Communications Pty Ltd
21491 20 17 2 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1318 1055 Time Warner Telecom
4134 1238 1010 CHINANET-BACKBONE
18566 945 937 Covad Communications
9583 908 893 Sify Limited
4755 942 868 Videsh Sanchar Nigam Ltd. Aut
19029 945 838 New Edge Networks
721 1013 699 DLA Systems Automation Center
22773 668 628 Cox Communications, Inc.
11492 639 616 Cable One
9498 676 608 BHARTI BT INTERNET LTD.
6197 1010 536 BellSouth Network Solutions,
19262 714 527 Verizon Global Networks
19916 563 509 OLM LLC
17488 519 509 Hathway IP Over Cable Interne
5668 525 502 CenturyTel Internet Holdings,
855 553 489 Canadian Research Network
8151 704 483 UniNet S.A. de C.V.
7545 546 476 TPG Internet Pty Ltd
3602 525 421 Sprint Canada, Inc.
22047 418 407 VTR PUNTO NET S.A.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65128 PRIVATE 193.110.50.0/24 24652 Juniper Networks, Eu
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
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
183.206.196.0/24 2188 FR-RENATER-ASTER
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
192.84.205.0/24 719 LANLINK autonomous system
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 /10:10 /11:28 /12:93
/13:201 /14:363 /15:713 /16:8866 /17:3257 /18:5389
/19:11775 /20:13328 /21:11667 /22:14838 /23:15970 /24:104007
/25:384 /26:289 /27:180 /28:65 /29:73 /30:51
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 928 945 Covad Communications
19029 877 945 New Edge Networks
6197 792 1010 BellSouth Network Solutions,
7018 788 1486 AT&T WorldNet Services
9583 738 908 Sify Limited
4323 642 1318 Time Warner Telecom
2386 632 912 AT&T Data Communications Serv
11492 630 639 Cable One
19916 557 563 OLM LLC
7011 556 647 Citizens Utilities
4766 499 687 Korea Telecom (KIX)
855 427 553 Canadian Research Network
5668 408 525 CenturyTel Internet Holdings,
15270 406 437 PaeTec.net -a division of Pae
1239 392 846 Sprint
9498 378 676 BHARTI BT INTERNET LTD.
4755 373 942 Videsh Sanchar Nigam Ltd. Aut
6517 364 395 Yipes Communications, Inc.
702 353 569 UUNET - Commercial IP service
6198 353 510 BellSouth Network Solutions,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:42 12:1613 13:1 15:16 16:3
17:3 18:4 20:41 24:765 25:1 32:58
38:230 40:54 41:3 44:3 47:6 52:4
55:1 56:3 57:26 58:178 59:237 60:182
61:859 62:817 63:1890 64:3208 65:2200 66:3131
67:619 68:684 69:1521 70:398 71:82 72:776
74:44 75:1 80:768 81:635 82:623 83:395
84:376 85:562 86:386 87:367 88:109 89:302
121:1 122:2 123:1 124:292 125:518 128:147
129:189 130:118 131:317 132:33 133:8 134:153
135:48 136:146 137:82 138:206 139:55 140:522
141:134 142:379 143:166 144:222 145:39 146:318
147:137 148:339 149:188 150:114 151:94 152:69
153:105 154:5 155:204 156:183 157:146 158:167
159:172 160:91 161:78 162:244 163:158 164:182
165:211 166:173 167:237 168:490 169:128 170:349
171:14 183:1 190:96 192:5733 193:3358 194:2640
195:1933 196:854 198:3953 199:3218 200:4635 201:1004
202:6696 203:7028 204:3911 205:2045 206:2422 207:2914
208:2159 209:3763 210:2004 211:697 212:1255 213:1478
214:359 215:41 216:4230 217:1167 218:295 219:231
220:718 221:370 222:189
End of report
