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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 28 Mar, 2006
Analysis Summary
----------------
BGP routing table entries examined: 184831
Prefixes after maximum aggregation: 102501
Unique aggregates announced to Internet: 90104
Total ASes present in the Internet Routing Table: 21809
Origin-only ASes present in the Internet Routing Table: 18949
Origin ASes announcing only one prefix: 9025
Transit ASes present in the Internet Routing Table: 2860
Transit-only ASes present in the Internet Routing Table: 70
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 24
Prefixes from unregistered ASNs in the Routing Table: 10
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1515091168
Equivalent to 90 /8s, 78 /16s and 116 /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: 90574
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 38926
Total APNIC prefixes after maximum aggregation: 16314
Prefixes being announced from the APNIC address blocks: 36644
Unique aggregates announced from the APNIC address blocks: 17947
APNIC Region origin ASes present in the Internet Routing Table: 2522
APNIC Region origin ASes announcing only one prefix: 716
APNIC Region transit ASes present in the Internet Routing Table: 390
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 219114976
Equivalent to 13 /8s, 15 /16s and 109 /24s
Percentage of available APNIC address space announced: 68.5
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: 96644
Total ARIN prefixes after maximum aggregation: 57155
Prefixes being announced from the ARIN address blocks: 75812
Unique aggregates announced from the ARIN address blocks: 28938
ARIN Region origin ASes present in the Internet Routing Table: 10594
ARIN Region origin ASes announcing only one prefix: 3957
ARIN Region transit ASes present in the Internet Routing Table: 975
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 293259520
Equivalent to 17 /8s, 122 /16s and 201 /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: 36699
Total RIPE prefixes after maximum aggregation: 24544
Prefixes being announced from the RIPE address blocks: 33760
Unique aggregates announced from the RIPE address blocks: 22754
RIPE Region origin ASes present in the Internet Routing Table: 7797
RIPE Region origin ASes announcing only one prefix: 4087
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: 242706304
Equivalent to 14 /8s, 119 /16s and 103 /24s
Percentage of available RIPE address space announced: 72.3
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: 10527
Total LACNIC prefixes after maximum aggregation: 3601
Prefixes being announced from the LACNIC address blocks: 8706
Unique aggregates announced from the LACNIC address blocks: 5173
LACNIC Region origin ASes present in the Internet Routing Table: 678
LACNIC Region origin ASes announcing only one prefix: 220
LACNIC Region transit ASes present in the Internet Routing Table: 124
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 26073344
Equivalent to 1 /8s, 141 /16s and 217 /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: 2026
Total AfriNIC prefixes after maximum aggregation: 887
Prefixes being announced from the AfriNIC address blocks: 1369
Unique aggregates announced from the AfriNIC address blocks: 899
AfriNIC Region origin ASes present in the Internet Routing Table: 150
AfriNIC Region origin ASes announcing only one prefix: 45
AfriNIC Region transit ASes present in the Internet Routing Table: 23
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 3945216
Equivalent to 0 /8s, 60 /16s and 51 /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 995 6949 212 CHINANET-BACKBONE
4755 891 259 69 Videsh Sanchar Nigam Ltd. Aut
9583 877 109 16 Sify Limited
4766 676 3923 301 Korea Telecom (KIX)
1221 619 1424 472 Telstra Pty Ltd
9498 559 212 72 BHARTI BT INTERNET LTD.
7545 525 108 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
17974 331 89 32 PT TELEKOMUNIKASI INDONESIA
18101 324 68 23 Reliance Infocom Ltd Internet
17557 319 25 163 Pakistan Telecom
9929 318 218 53 China Netcom Corp.
17849 317 20 105 Telecommunications Technology
7474 305 211 232 SingTel Optus Pty Ltd
4780 280 226 16 Digital United Inc.
9837 269 77 165 Powertel Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1505 6263 966 AT&T WorldNet Services
4323 1244 714 247 Time Warner Telecom
721 1010 21962 307 DLA Systems Automation Center
6197 1005 620 469 BellSouth Network Solutions,
174 960 5784 907 Cogent Communications
701 945 8048 781 UUNET Technologies, Inc.
18566 923 272 8 Covad Communications
2386 874 520 664 AT&T Data Communications Serv
1239 854 2805 602 Sprint
19029 783 152 112 New Edge Networks
209 699 3607 542 Qwest
20115 674 591 363 Charter Communications
19262 665 1968 156 Verizon Global Networks
22773 642 1480 40 Cox Communications, Inc.
11492 624 86 20 Cable One
7011 611 212 398 Citizens Utilities
6198 583 506 239 BellSouth Network Solutions,
852 576 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
702 587 1951 460 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
680 243 2025 240 DFN-IP service G-WiN
3246 231 488 221 Song Networks
6746 231 89 203 Dynamic Network Technologies,
8708 216 276 201 Romania Data Systems S.A.
8551 202 197 23 Bezeq International
24863 200 40 9 LINKdotNET AS number
1257 197 710 172 SWIPnet Swedish IP Network
3269 194 2085 75 TELECOM ITALIA
3215 186 1542 88 France Telecom Transpac
9121 174 931 26 TTnet Autonomous System
786 171 1778 171 The JANET IP Service
8866 170 37 14 Bulgarian Telecommunication C
5400 166 328 135 BT Ignite European Backbone
6830 166 765 35 UPC Distribution Services
5515 161 839 120 Sonera Solution Autonomous Sy
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 320 110 83 Servicios Alestra S.A de C.V
16814 279 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
21826 123 16 20 INTERCABLE
19169 122 8 32 Telconet
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
25620 97 6 3 COTAS LTDA
7315 96 6 3 Grupo Rey Moreno
19429 95 52 42 E.T.B.
4270 94 17 9 Red de Interconexion Universi
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 272 802 229 The Internet Solution
8452 165 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
21280 20 5 5 Swift Global Kenya Ltd.Is an
2561 19 6 2 Egyptian Universities Network
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 877 861 Sify Limited
4755 891 822 Videsh Sanchar Nigam Ltd. Aut
4134 995 783 CHINANET-BACKBONE
721 1010 703 DLA Systems Automation Center
19029 783 671 New Edge Networks
11492 624 604 Cable One
22773 642 602 Cox Communications, Inc.
6197 1005 536 BellSouth Network Solutions,
19262 665 509 Verizon Global Networks
19916 563 509 OLM LLC
5668 526 501 CenturyTel Internet Holdings,
17488 502 495 Hathway IP Over Cable Interne
9498 559 487 BHARTI BT INTERNET LTD.
855 546 482 Canadian Research Network
7545 525 454 TPG Internet Pty Ltd
7757 473 454 AT&T Broadband
3602 538 429 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
65505 PRIVATE 206.252.200.192/27 8002 Stealth Communicatio
28871 UNALLOCATED 213.167.224.0/24 12541 Cable & Wireless Eur
28871 UNALLOCATED 213.167.224.0/19 15734 IDH Autonomous Syste
28871 UNALLOCATED 213.167.225.0/24 15734 IDH Autonomous Syste
28871 UNALLOCATED 213.167.226.0/24 15734 IDH Autonomous Syste
28871 UNALLOCATED 213.167.227.0/24 15734 IDH Autonomous Syste
28871 UNALLOCATED 213.167.228.0/23 15734 IDH Autonomous Syste
35113 UNALLOCATED 217.67.48.0/20 8190 VIATEL
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
192.72.0.0/18 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 /11:27 /12:87
/13:199 /14:353 /15:693 /16:8767 /17:3147 /18:5158
/19:11436 /20:12852 /21:11079 /22:14196 /23:15324 /24:100481
/25:341 /26:247 /27:215 /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 799 1505 AT&T WorldNet Services
6197 794 1005 BellSouth Network Solutions,
19029 710 783 New Edge Networks
9583 696 877 Sify Limited
11492 615 624 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 406 526 CenturyTel Internet Holdings,
1239 380 854 Sprint
702 368 587 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)
----------------------------------------------
4:3 8:38 12:1619 13:1 15:12 16:3
17:3 18:4 20:43 24:871 25:1 30:2
32:67 38:203 40:54 44:3 47:6 52:4
55:1 56:3 57:33 58:149 59:189 60:177
61:822 62:810 63:1922 64:3116 65:2227 66:3072
67:614 68:678 69:1430 70:314 71:63 72:649
73:23 74:26 80:755 81:610 82:548 83:375
84:364 85:491 86:389 87:261 88:46 89:97
124:196 125:275 128:164 129:174 130:108 131:319
132:33 133:8 134:149 135:47 136:176 137:68
138:194 139:75 140:472 141:140 142:393 143:157
144:224 145:40 146:322 147:134 148:336 149:190
150:114 151:79 152:65 153:107 154:6 155:196
156:99 157:120 158:166 159:167 160:85 161:69
162:217 163:144 164:179 165:182 166:146 167:243
168:479 169:134 170:322 171:12 172:1 183:1
190:45 192:5747 193:3393 194:2544 195:1793 196:774
198:3873 199:3257 200:4297 201:669 202:6549 203:6874
204:3935 205:2081 206:2424 207:2929 208:2037 209:3689
210:1916 211:814 212:1242 213:1470 214:339 215:42
216:4088 217:1158 218:240 219:180 220:654 221:351
222:159
End of report
