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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 24 May, 2006
Analysis Summary
----------------
BGP routing table entries examined: 188735
Prefixes after maximum aggregation: 104219
Unique aggregates announced to Internet: 92483
Total ASes present in the Internet Routing Table: 22258
Origin-only ASes present in the Internet Routing Table: 19364
Origin ASes announcing only one prefix: 9265
Transit ASes present in the Internet Routing Table: 2894
Transit-only ASes present in the Internet Routing Table: 64
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 18
Max AS path prepend of ASN (32609) 16
Prefixes from unregistered ASNs in the Routing Table: 6
Unregistered ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1539762024
Equivalent to 91 /8s, 198 /16s and 231 /24s
Percentage of available address space announced: 41.5
Percentage of allocated address space announced: 60.1
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 93344
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 39852
Total APNIC prefixes after maximum aggregation: 16682
Prefixes being announced from the APNIC address blocks: 37548
Unique aggregates announced from the APNIC address blocks: 18371
APNIC Region origin ASes present in the Internet Routing Table: 2564
APNIC Region origin ASes announcing only one prefix: 730
APNIC Region transit ASes present in the Internet Routing Table: 392
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 226769376
Equivalent to 13 /8s, 132 /16s and 57 /24s
Percentage of available APNIC address space announced: 70.9
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: 97610
Total ARIN prefixes after maximum aggregation: 57734
Prefixes being announced from the ARIN address blocks: 71617
Unique aggregates announced from the ARIN address blocks: 26451
ARIN Region origin ASes present in the Internet Routing Table: 10725
ARIN Region origin ASes announcing only one prefix: 4026
ARIN Region transit ASes present in the Internet Routing Table: 990
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 292862464
Equivalent to 17 /8s, 116 /16s and 186 /24s
Percentage of available ARIN address space announced: 75.9
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
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: 37806
Total RIPE prefixes after maximum aggregation: 25257
Prefixes being announced from the RIPE address blocks: 34824
Unique aggregates announced from the RIPE address blocks: 23464
RIPE Region origin ASes present in the Internet Routing Table: 8061
RIPE Region origin ASes announcing only one prefix: 4233
RIPE Region transit ASes present in the Internet Routing Table: 1323
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 250388100
Equivalent to 14 /8s, 236 /16s and 158 /24s
Percentage of available RIPE address space announced: 78.5
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
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: 11315
Total LACNIC prefixes after maximum aggregation: 3657
Prefixes being announced from the LACNIC address blocks: 9413
Unique aggregates announced from the LACNIC address blocks: 5523
LACNIC Region origin ASes present in the Internet Routing Table: 686
LACNIC Region origin ASes announcing only one prefix: 227
LACNIC Region transit ASes present in the Internet Routing Table: 129
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 26986240
Equivalent to 1 /8s, 155 /16s and 199 /24s
Percentage of available LACNIC address space announced: 40.2
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: 2146
Total AfriNIC prefixes after maximum aggregation: 889
Prefixes being announced from the AfriNIC address blocks: 1476
Unique aggregates announced from the AfriNIC address blocks: 941
AfriNIC Region origin ASes present in the Internet Routing Table: 158
AfriNIC Region origin ASes announcing only one prefix: 49
AfriNIC Region transit ASes present in the Internet Routing Table: 26
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC addresses announced to Internet: 4078592
Equivalent to 0 /8s, 62 /16s and 60 /24s
Percentage of available AfriNIC address space announced: 12.2
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 1170 7096 218 CHINANET-BACKBONE
9583 905 109 16 Sify Limited
4755 844 257 65 Videsh Sanchar Nigam Ltd. Aut
4766 685 4435 304 Korea Telecom (KIX)
1221 618 1684 473 Telstra Pty Ltd
9498 560 211 67 BHARTI BT INTERNET LTD.
7545 532 124 70 TPG Internet Pty Ltd
17488 518 32 9 Hathway IP Over Cable Interne
17676 485 7029 109 Softbank BB Corp.
9443 450 110 81 Primus Telecommunications
4802 380 80 173 Wantree Development
17557 363 28 166 Pakistan Telecom
18101 360 85 23 Reliance Infocom Ltd Internet
17849 352 22 114 Telecommunications Technology
2907 336 1749 312 SINET Japan
17974 335 118 17 PT TELEKOMUNIKASI INDONESIA
9929 327 221 57 China Netcom Corp.
7474 299 211 229 SingTel Optus Pty Ltd
9800 273 410 67 CHINA UNICOM
4837 266 2994 112 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1495 6225 964 AT&T WorldNet Services
4323 1294 735 255 Time Warner Telecom
6197 1007 622 473 BellSouth Network Solutions,
721 1000 21977 306 DLA Systems Automation Center
174 956 5787 900 Cogent Communications
19029 948 151 108 New Edge Networks
18566 940 272 8 Covad Communications
701 937 6765 773 UUNET Technologies, Inc.
2386 881 522 677 AT&T Data Communications Serv
1239 846 2805 600 Sprint
209 709 3689 554 Qwest
19262 705 2106 170 Verizon Global Networks
20115 695 609 376 Charter Communications
22773 665 1745 46 Cox Communications, Inc.
7011 635 218 413 Citizens Utilities
11492 621 87 21 Cable One
852 581 1084 382 Telus Advanced Communications
6478 576 1544 341 AT&T Worldnet Services
19916 563 49 54 OLM LLC
855 545 244 64 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 576 1952 454 UUNET - Commercial IP service
3301 308 1072 294 TeliaNet Sweden
3352 308 1644 30 Ibernet, Internet Access Netw
8220 293 472 266 COLT Telecommunications
3320 287 3989 240 Deutsche Telekom AG
680 245 2025 242 DFN-IP service G-WiN
3246 235 504 225 Song Networks
6746 235 89 211 Dynamic Network Technologies,
8708 219 276 202 Romania Data Systems S.A.
24863 212 42 10 LINKdotNET AS number
8551 202 198 24 Bezeq International
3215 199 1664 94 France Telecom Transpac
3269 198 2134 72 TELECOM ITALIA
1257 191 740 166 SWIPnet Swedish IP Network
8764 189 65 32 LIETUVOS-TELEKOMAS Autonomous
30890 187 16 67 SC Kappa Invexim SRL
8866 181 37 16 Bulgarian Telecommunication C
6830 172 781 36 UPC Distribution Services
786 171 1778 171 The JANET IP Service
5400 171 348 140 BT Ignite European Backbone
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 705 1083 225 UniNet S.A. de C.V.
22047 417 158 11 VTR PUNTO NET S.A.
16814 330 20 8 NSS, S.A.
11172 326 110 87 Servicios Alestra S.A de C.V
6147 262 126 22 Telefonica Del Peru
14117 201 12 6 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
7303 169 79 24 Telecom Argentina Stet-France
11556 132 80 4 Cable-Wireless Panama
21826 132 16 23 INTERCABLE
6503 130 149 75 AVANTEL, S.A.
19169 129 8 21 Telconet
14259 116 10 12 GTD Internet S.A.
23216 113 21 9 RAMtelecom Telecomunicaciones
6505 109 88 79 Global One Communicaoes Ltda
7910 105 7 10 ANDINET ON LINE
5639 103 12 9 Telecommunications Services o
19429 103 58 44 E.T.B.
14522 102 16 9 SatNet S.A.
18822 98 7 9 TELEFONICA MANQUEHUE
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 283 803 233 The Internet Solution
8452 168 60 7 TEDATA
6713 137 135 11 Itissalat Al-MAGHRIB
2018 131 314 105 Tertiary Education Network
5536 121 8 18 Internet Egypt Network
24835 117 50 7 RAYA Telecom - Egypt
33783 105 6 2 EEPAD TISP TELECOM & INTERNET
2905 73 155 66 The Internetworking Company o
20928 58 16 2 Noor Advanced Technologies AS
15475 53 84 4 Nile Online
5713 39 294 35 Telkom SA Ltd
15706 31 8 3 Sudatel Internet Exchange Aut
33774 30 7 20 AS Number for Telecom Algeria
12455 27 6 3 Jambonet Autonomous system
23889 26 8 11 MAURITIUS TELECOM
8524 24 1 4 AUCEGYPT Autonomous System
16637 24 14 22 Johnnic e-Ventures
10798 22 1 13 Standard Bank of South Africa
33766 20 2 1 Nyala Communications Pty Ltd
2561 19 6 2 Egyptian Universities Network
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1294 1039 Time Warner Telecom
4134 1170 952 CHINANET-BACKBONE
18566 940 932 Covad Communications
9583 905 889 Sify Limited
19029 948 840 New Edge Networks
4755 844 779 Videsh Sanchar Nigam Ltd. Aut
721 1000 694 DLA Systems Automation Center
22773 665 619 Cox Communications, Inc.
11492 621 600 Cable One
19262 705 535 Verizon Global Networks
6197 1007 534 BellSouth Network Solutions,
19916 563 509 OLM LLC
17488 518 509 Hathway IP Over Cable Interne
5668 526 503 CenturyTel Internet Holdings,
9498 560 493 BHARTI BT INTERNET LTD.
855 545 481 Canadian Research Network
8151 705 480 UniNet S.A. de C.V.
7545 532 462 TPG Internet Pty Ltd
3602 538 428 Sprint Canada, Inc.
22047 417 406 VTR PUNTO NET S.A.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
39938 UNALLOCATED 64.124.63.0/24 6461 AboveNet Communicati
39938 UNALLOCATED 68.142.125.0/24 6461 AboveNet Communicati
65128 PRIVATE 193.110.50.0/24 24652 Juniper Networks, Eu
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
64515 PRIVATE 203.126.13.0/25 7610 SINGAPORE ADVANCE RE
64515 PRIVATE 203.126.13.128/26 7610 SINGAPORE ADVANCE RE
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
192.119.135.0/24 270 NASA
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 /10:9 /11:28 /12:91
/13:201 /14:362 /15:705 /16:8827 /17:3222 /18:5328
/19:11647 /20:13139 /21:11427 /22:14613 /23:15797 /24:102293
/25:383 /26:252 /27:197 /28:64 /29:36 /30:49
/31:0 /32:38
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 923 940 Covad Communications
19029 879 948 New Edge Networks
6197 795 1007 BellSouth Network Solutions,
7018 784 1495 AT&T WorldNet Services
9583 734 905 Sify Limited
4323 636 1294 Time Warner Telecom
11492 612 621 Cable One
2386 607 881 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 544 635 Citizens Utilities
4766 495 685 Korea Telecom (KIX)
855 426 545 Canadian Research Network
5668 409 526 CenturyTel Internet Holdings,
15270 398 429 PaeTec.net -a division of Pae
1239 387 846 Sprint
6517 360 391 Yipes Communications, Inc.
702 357 576 UUNET - Commercial IP service
6198 356 508 BellSouth Network Solutions,
17849 352 352 Telecommunications Technology
22773 350 665 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:41 12:1628 13:1 15:14 16:3
17:3 18:4 20:43 24:734 25:1 30:2
32:58 38:217 40:54 41:3 44:3 47:6
52:4 55:1 56:3 57:25 58:176 59:190
60:178 61:856 62:754 63:1929 64:3177 65:2252
66:3018 67:609 68:666 69:1510 70:362 71:86
72:719 73:23 74:37 80:764 81:644 82:614
83:393 84:391 85:569 86:398 87:338 88:118
89:205 124:281 125:408 128:154 129:190 130:114
131:316 132:30 133:8 134:158 135:46 136:178
137:75 138:206 139:69 140:469 141:130 142:380
143:165 144:223 145:39 146:329 147:136 148:309
149:187 150:114 151:90 152:69 153:107 154:5
155:202 156:100 157:149 158:167 159:173 160:87
161:76 162:247 163:147 164:178 165:206 166:166
167:238 168:490 169:128 170:336 171:14 183:1
190:63 192:5766 193:3368 194:2622 195:1841 196:848
198:3910 199:3214 200:4437 201:942 202:6621 203:6887
204:3894 205:2063 206:2408 207:2889 208:2126 209:3777
210:1957 211:675 212:1238 213:1470 214:363 215:41
216:4138 217:1149 218:277 219:203 220:665 221:357
222:162
End of report
