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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 29 Mar, 2006
Analysis Summary
----------------
BGP routing table entries examined: 185007
Prefixes after maximum aggregation: 102584
Unique aggregates announced to Internet: 90261
Total ASes present in the Internet Routing Table: 21839
Origin-only ASes present in the Internet Routing Table: 18973
Origin ASes announcing only one prefix: 9042
Transit ASes present in the Internet Routing Table: 2866
Transit-only ASes present in the Internet Routing Table: 71
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 20
Prefixes from unregistered ASNs in the Routing Table: 3
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 13
Number of addresses announced to Internet: 1515810080
Equivalent to 90 /8s, 89 /16s and 109 /24s
Percentage of available address space announced: 40.9
Percentage of allocated address space announced: 60.3
Percentage of available address space allocated: 67.8
Total number of prefixes smaller than registry allocations: 90711
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 38896
Total APNIC prefixes after maximum aggregation: 16331
Prefixes being announced from the APNIC address blocks: 36618
Unique aggregates announced from the APNIC address blocks: 17971
APNIC Region origin ASes present in the Internet Routing Table: 2528
APNIC Region origin ASes announcing only one prefix: 723
APNIC Region transit ASes present in the Internet Routing Table: 391
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 219616992
Equivalent to 13 /8s, 23 /16s and 22 /24s
Percentage of available APNIC address space announced: 68.7
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: 96773
Total ARIN prefixes after maximum aggregation: 57188
Prefixes being announced from the ARIN address blocks: 75858
Unique aggregates announced from the ARIN address blocks: 28973
ARIN Region origin ASes present in the Internet Routing Table: 10601
ARIN Region origin ASes announcing only one prefix: 3959
ARIN Region transit ASes present in the Internet Routing Table: 979
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 293305600
Equivalent to 17 /8s, 123 /16s and 125 /24s
Percentage of available ARIN address space announced: 72.8
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, 64/6, 68/7, 70/6, 74/7, 76/8,
198/7, 204/6, 208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 36757
Total RIPE prefixes after maximum aggregation: 24581
Prefixes being announced from the RIPE address blocks: 33803
Unique aggregates announced from the RIPE address blocks: 22833
RIPE Region origin ASes present in the Internet Routing Table: 7808
RIPE Region origin ASes announcing only one prefix: 4091
RIPE Region transit ASes present in the Internet Routing Table: 1304
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 242854528
Equivalent to 14 /8s, 121 /16s and 170 /24s
Percentage of available RIPE address space announced: 72.4
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, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 10534
Total LACNIC prefixes after maximum aggregation: 3595
Prefixes being announced from the LACNIC address blocks: 8699
Unique aggregates announced from the LACNIC address blocks: 5184
LACNIC Region origin ASes present in the Internet Routing Table: 682
LACNIC Region origin ASes announcing only one prefix: 225
LACNIC Region transit ASes present in the Internet Routing Table: 126
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 26107904
Equivalent to 1 /8s, 142 /16s and 96 /24s
Percentage of available LACNIC address space announced: 38.9
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: 2039
Total AfriNIC prefixes after maximum aggregation: 889
Prefixes being announced from the AfriNIC address blocks: 1379
Unique aggregates announced from the AfriNIC address blocks: 908
AfriNIC Region origin ASes present in the Internet Routing Table: 150
AfriNIC Region origin ASes announcing only one prefix: 44
AfriNIC Region transit ASes present in the Internet Routing Table: 23
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 3945472
Equivalent to 0 /8s, 60 /16s and 52 /24s
Percentage of available AfriNIC address space announced: 11.8
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 996 6933 212 CHINANET-BACKBONE
4755 890 259 69 Videsh Sanchar Nigam Ltd. Aut
9583 876 109 16 Sify Limited
4766 676 3923 301 Korea Telecom (KIX)
1221 626 1556 476 Telstra Pty Ltd
9498 561 212 72 BHARTI BT INTERNET LTD.
7545 526 108 71 TPG Internet Pty Ltd
17488 502 31 7 Hathway IP Over Cable Interne
17676 484 6997 107 Softbank BB Corp.
9443 414 95 82 Primus Telecommunications
4802 376 91 171 Wantree Development
2907 336 1749 312 SINET Japan
18101 323 68 23 Reliance Infocom Ltd Internet
17557 320 26 164 Pakistan Telecom
17849 317 20 105 Telecommunications Technology
9929 315 218 53 China Netcom Corp.
7474 305 211 232 SingTel Optus Pty Ltd
4780 281 226 16 Digital United Inc.
17974 272 81 43 PT TELEKOMUNIKASI INDONESIA
9837 269 77 165 Powertel Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1504 6263 966 AT&T WorldNet Services
4323 1244 714 247 Time Warner Telecom
721 1012 21962 307 DLA Systems Automation Center
6197 1004 620 471 BellSouth Network Solutions,
174 959 5784 906 Cogent Communications
701 947 8050 783 UUNET Technologies, Inc.
18566 923 272 8 Covad Communications
2386 874 520 664 AT&T Data Communications Serv
1239 854 2805 602 Sprint
19029 784 152 112 New Edge Networks
209 700 3607 543 Qwest
20115 673 590 362 Charter Communications
19262 665 1968 156 Verizon Global Networks
22773 642 1480 40 Cox Communications, Inc.
11492 625 86 20 Cable One
7011 611 212 398 Citizens Utilities
6198 583 506 239 BellSouth Network Solutions,
852 578 1088 385 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 546 244 64 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 586 1951 459 UUNET - Commercial IP service
3301 307 1071 292 TeliaNet Sweden
3352 307 1564 31 Ibernet, Internet Access Netw
8220 289 473 268 COLT Telecommunications
3320 281 3478 233 Deutsche Telekom AG
680 245 2025 242 DFN-IP service G-WiN
3246 231 488 221 Song Networks
6746 230 89 204 Dynamic Network Technologies,
8708 216 276 201 Romania Data Systems S.A.
8551 202 197 23 Bezeq International
24863 201 40 9 LINKdotNET AS number
1257 197 710 172 SWIPnet Swedish IP Network
3269 193 2085 74 TELECOM ITALIA
3215 186 1542 88 France Telecom Transpac
786 171 1778 171 The JANET IP Service
8866 170 37 14 Bulgarian Telecommunication C
6830 167 765 35 UPC Distribution Services
5400 166 328 135 BT Ignite European Backbone
5515 161 839 120 Sonera Solution Autonomous Sy
9121 161 931 26 TTnet Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 600 1051 226 UniNet S.A. de C.V.
22047 384 142 10 VTR PUNTO NET S.A.
11172 316 109 80 Servicios Alestra S.A de C.V
16814 280 18 7 NSS, S.A.
14117 185 12 6 Telefonica del Sur S.A.
7303 159 75 20 Telecom Argentina Stet-France
6147 154 126 22 Telefonica Del Peru
11556 132 80 4 Cable-Wireless Panama
5639 127 12 9 Telecommunications Services o
19169 123 8 32 Telconet
21826 123 16 20 INTERCABLE
6503 121 149 75 AVANTEL, S.A.
10481 121 48 8 Prima S.A.
6505 106 88 78 Global One Communicaoes Ltda
23216 100 20 7 RAMtelecom Telecomunicaciones
18822 99 8 10 TELEFONICA MANQUEHUE
7315 96 6 3 Grupo Rey Moreno
19429 95 52 42 E.T.B.
4270 94 17 9 Red de Interconexion Universi
14522 94 13 5 SatNet S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 276 803 232 The Internet Solution
8452 166 60 7 TEDATA
6713 145 135 11 Itissalat Al-MAGHRIB
15475 128 84 4 Nile Online
2018 124 314 105 Tertiary Education Network
5536 121 8 18 Internet Egypt Network
24835 83 50 7 RAYA Telecom - Egypt
2905 74 155 67 The Internetworking Company o
20928 57 16 2 Noor Advanced Technologies AS
5713 39 294 35 Telkom SA Ltd
12455 39 6 3 Jambonet Autonomous system
15706 31 8 3 Sudatel Internet Exchange Aut
33774 30 7 21 AS Number for Telecom Algeria
23889 26 8 11 MAURITIUS TELECOM
8524 24 1 4 AUCEGYPT Autonomous System
16637 23 10 21 Johnnic e-Ventures
10798 22 1 13 Standard Bank of South Africa
8346 20 13 17 SONATEL-AS Autonomous System
2561 19 6 2 Egyptian Universities Network
21280 19 5 5 Swift Global Kenya Ltd.Is an
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1244 997 Time Warner Telecom
18566 923 915 Covad Communications
9583 876 860 Sify Limited
4755 890 821 Videsh Sanchar Nigam Ltd. Aut
4134 996 784 CHINANET-BACKBONE
721 1012 705 DLA Systems Automation Center
19029 784 672 New Edge Networks
11492 625 605 Cable One
22773 642 602 Cox Communications, Inc.
6197 1004 533 BellSouth Network Solutions,
19262 665 509 Verizon Global Networks
19916 563 509 OLM LLC
5668 532 502 CenturyTel Internet Holdings,
17488 502 495 Hathway IP Over Cable Interne
9498 561 489 BHARTI BT INTERNET LTD.
855 546 482 Canadian Research Network
7545 526 455 TPG Internet Pty Ltd
7757 473 454 AT&T Broadband
3602 537 428 Sprint Canada, Inc.
812 438 410 Rogers WAVE
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65289 PRIVATE 148.164.1.0/24 4755 Videsh Sanchar Nigam
65005 PRIVATE 159.153.148.0/22 24989 IX Europe Frankfurt
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
1.1.1.0/24 8764 LIETUVOS-TELEKOMAS Autonomous
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
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
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 /10:8 /11:26 /12:88
/13:199 /14:355 /15:692 /16:8755 /17:3158 /18:5164
/19:11439 /20:12862 /21:11111 /22:14202 /23:15309 /24:100615
/25:343 /26:246 /27:214 /28:66 /29:58 /30:36
/31:0 /32:34
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 906 923 Covad Communications
7018 798 1504 AT&T WorldNet Services
6197 793 1004 BellSouth Network Solutions,
19029 711 784 New Edge Networks
9583 695 876 Sify Limited
11492 616 625 Cable One
4323 602 1244 Time Warner Telecom
2386 598 874 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 523 611 Citizens Utilities
4766 485 676 Korea Telecom (KIX)
7757 455 473 AT&T Broadband
6198 441 583 BellSouth Network Solutions,
855 420 546 Canadian Research Network
5668 412 532 CenturyTel Internet Holdings,
1239 380 854 Sprint
702 367 586 UUNET - Commercial IP service
15270 366 396 PaeTec.net -a division of Pae
6517 347 377 Yipes Communications, Inc.
22773 336 642 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1 4:3 8:38 12:1620 13:1 15:12
16:3 17:3 18:4 20:43 24:872 25:1
30:2 32:67 38:206 40:54 44:3 47:6
52:4 55:1 56:3 57:33 58:151 59:190
60:181 61:817 62:810 63:1922 64:3118 65:2228
66:3073 67:617 68:677 69:1433 70:314 71:68
72:650 73:23 74:26 80:756 81:611 82:549
83:375 84:369 85:494 86:400 87:261 88:45
89:101 124:196 125:278 128:162 129:173 130:108
131:319 132:33 133:8 134:150 135:47 136:177
137:68 138:194 139:75 140:471 141:134 142:393
143:157 144:225 145:40 146:322 147:134 148:335
149:190 150:114 151:80 152:65 153:107 154:6
155:196 156:99 157:120 158:166 159:167 160:86
161:69 162:252 163:145 164:179 165:182 166:166
167:243 168:478 169:134 170:323 171:12 172:1
183:1 190:45 192:5765 193:3396 194:2545 195:1794
196:783 198:3876 199:3266 200:4292 201:668 202:6564
203:6874 204:3932 205:2080 206:2417 207:2929 208:2037
209:3689 210:1919 211:818 212:1248 213:1469 214:339
215:42 216:4081 217:1168 218:240 219:180 220:653
221:351 222:136
End of report
