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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 20 Jun, 2006
Analysis Summary
----------------
BGP routing table entries examined: 190962
Prefixes after maximum aggregation: 104889
Unique aggregates announced to Internet: 93221
Total ASes present in the Internet Routing Table: 22480
Origin-only ASes present in the Internet Routing Table: 19556
Origin ASes announcing only one prefix: 9381
Transit ASes present in the Internet Routing Table: 2924
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: 24
Max AS path prepend of ASN (34527) 16
Prefixes from unregistered ASNs in the Routing Table: 3
Unregistered ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 9
Number of addresses announced to Internet: 1534902504
Equivalent to 91 /8s, 124 /16s and 192 /24s
Percentage of available address space announced: 41.4
Percentage of allocated address space announced: 59.9
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 94696
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 40946
Total APNIC prefixes after maximum aggregation: 16880
Prefixes being announced from the APNIC address blocks: 38668
Unique aggregates announced from the APNIC address blocks: 18396
APNIC Region origin ASes present in the Internet Routing Table: 2616
APNIC Region origin ASes announcing only one prefix: 750
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: 233419872
Equivalent to 13 /8s, 233 /16s and 180 /24s
Percentage of available APNIC address space announced: 73.0
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: 98041
Total ARIN prefixes after maximum aggregation: 57881
Prefixes being announced from the ARIN address blocks: 72017
Unique aggregates announced from the ARIN address blocks: 26867
ARIN Region origin ASes present in the Internet Routing Table: 10777
ARIN Region origin ASes announcing only one prefix: 4066
ARIN Region transit ASes present in the Internet Routing Table: 991
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 294097664
Equivalent to 17 /8s, 135 /16s and 147 /24s
Percentage of available ARIN address space announced: 76.2
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: 38181
Total RIPE prefixes after maximum aggregation: 25505
Prefixes being announced from the RIPE address blocks: 35210
Unique aggregates announced from the RIPE address blocks: 23740
RIPE Region origin ASes present in the Internet Routing Table: 8169
RIPE Region origin ASes announcing only one prefix: 4291
RIPE Region transit ASes present in the Internet Routing Table: 1353
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 254100356
Equivalent to 15 /8s, 37 /16s and 67 /24s
Percentage of available RIPE address space announced: 79.7
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: 11559
Total LACNIC prefixes after maximum aggregation: 3719
Prefixes being announced from the LACNIC address blocks: 9715
Unique aggregates announced from the LACNIC address blocks: 5542
LACNIC Region origin ASes present in the Internet Routing Table: 697
LACNIC Region origin ASes announcing only one prefix: 230
LACNIC Region transit ASes present in the Internet Routing Table: 130
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 27552512
Equivalent to 1 /8s, 164 /16s and 107 /24s
Percentage of available LACNIC address space announced: 41.1
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: 2232
Total AfriNIC prefixes after maximum aggregation: 904
Prefixes being announced from the AfriNIC address blocks: 1523
Unique aggregates announced from the AfriNIC address blocks: 936
AfriNIC Region origin ASes present in the Internet Routing Table: 157
AfriNIC Region origin ASes announcing only one prefix: 44
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: 11
Number of AfriNIC addresses announced to Internet: 4133888
Equivalent to 0 /8s, 63 /16s and 20 /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 1237 7259 228 CHINANET-BACKBONE
4755 936 258 74 Videsh Sanchar Nigam Ltd. Aut
9583 904 109 16 Sify Limited
4766 689 4435 303 Korea Telecom (KIX)
9498 659 211 68 BHARTI BT INTERNET LTD.
1221 615 1668 473 Telstra Pty Ltd
7545 546 124 70 TPG Internet Pty Ltd
17488 519 32 10 Hathway IP Over Cable Interne
17676 488 7061 109 Softbank BB Corp.
9443 450 110 81 Primus Telecommunications
18101 412 85 24 Reliance Infocom Ltd Internet
17557 398 31 177 Pakistan Telecom
17974 383 129 14 PT TELEKOMUNIKASI INDONESIA
4802 382 81 169 Wantree Development
9929 340 255 61 China Netcom Corp.
2907 335 1733 311 SINET Japan
17849 303 23 103 Telecommunications Technology
7474 299 211 228 SingTel Optus Pty Ltd
4837 285 3045 125 chinanet IDC center beijing n
10139 283 19 5 Meridian Telekoms
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1477 6259 951 AT&T WorldNet Services
4323 1317 743 261 Time Warner Telecom
721 1015 21998 314 DLA Systems Automation Center
6197 1010 629 478 BellSouth Network Solutions,
174 967 5788 903 Cogent Communications
19029 945 151 108 New Edge Networks
18566 943 272 8 Covad Communications
701 940 6753 775 UUNET Technologies, Inc.
2386 912 560 705 AT&T Data Communications Serv
1239 846 2788 599 Sprint
20115 714 617 382 Charter Communications
209 709 3687 551 Qwest
19262 708 2099 191 Verizon Global Networks
22773 666 1741 40 Cox Communications, Inc.
7011 638 218 414 Citizens Utilities
11492 632 87 23 Cable One
852 584 1084 382 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 550 244 64 Canadian Research Network
5668 529 147 23 CenturyTel Internet Holdings,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 572 1951 451 UUNET - Commercial IP service
3301 315 1343 300 TeliaNet Sweden
3352 306 1643 30 Ibernet, Internet Access Netw
3320 289 3989 242 Deutsche Telekom AG
8220 275 470 263 COLT Telecommunications
680 245 2025 242 DFN-IP service G-WiN
6746 236 89 211 Dynamic Network Technologies,
3246 234 498 224 Song Networks
24863 216 42 11 LINKdotNET AS number
8708 215 275 201 Romania Data Systems S.A.
3269 201 2182 72 TELECOM ITALIA
8551 201 198 24 Bezeq International
3215 198 1680 93 France Telecom Transpac
30890 194 17 72 SC Kappa Invexim SRL
1257 193 741 165 SWIPnet Swedish IP Network
8866 183 37 15 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
9121 169 931 28 TTnet Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 709 1099 222 UniNet S.A. de C.V.
22047 418 174 11 VTR PUNTO NET S.A.
11172 349 110 83 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
6147 267 134 22 Telefonica Del Peru
14117 205 12 6 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
7303 175 81 25 Telecom Argentina Stet-France
6503 135 151 81 AVANTEL, S.A.
21826 133 17 23 INTERCABLE
11556 132 80 4 Cable-Wireless Panama
19169 127 8 25 Telconet
14259 119 10 15 GTD Internet S.A.
19429 118 64 41 E.T.B.
14522 115 18 9 SatNet S.A.
23216 114 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
7738 101 410 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 167 60 7 TEDATA
6713 154 135 11 Itissalat Al-MAGHRIB
2018 131 314 105 Tertiary Education Network
5536 121 8 18 Internet Egypt Network
24835 116 48 6 RAYA Telecom - Egypt
33783 105 6 2 EEPAD TISP TELECOM & INTERNET
2905 73 155 66 The Internetworking Company o
15475 73 84 4 Nile Online
20928 59 16 2 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
23889 26 8 11 MAURITIUS TELECOM
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
21280 22 4 4 Swift Global Kenya Ltd.Is an
33766 21 2 1 Nyala Communications Pty Ltd
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1317 1056 Time Warner Telecom
4134 1237 1009 CHINANET-BACKBONE
18566 943 935 Covad Communications
9583 904 888 Sify Limited
4755 936 862 Videsh Sanchar Nigam Ltd. Aut
19029 945 837 New Edge Networks
721 1015 701 DLA Systems Automation Center
22773 666 626 Cox Communications, Inc.
11492 632 609 Cable One
9498 659 591 BHARTI BT INTERNET LTD.
6197 1010 532 BellSouth Network Solutions,
19262 708 517 Verizon Global Networks
19916 563 509 OLM LLC
17488 519 509 Hathway IP Over Cable Interne
5668 529 506 CenturyTel Internet Holdings,
8151 709 487 UniNet S.A. de C.V.
855 550 486 Canadian Research Network
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
64920 PRIVATE 60.23.240.0/20 4837 chinanet IDC center
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 /8:17 /9:9 /10:10 /11:28 /12:93
/13:201 /14:362 /15:710 /16:8863 /17:3262 /18:5378
/19:11756 /20:13289 /21:11591 /22:14856 /23:15935 /24:103466
/25:384 /26:337 /27:182 /28:68 /29:74 /30:51
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 926 943 Covad Communications
19029 876 945 New Edge Networks
6197 793 1010 BellSouth Network Solutions,
7018 784 1477 AT&T WorldNet Services
9583 735 904 Sify Limited
4323 642 1317 Time Warner Telecom
2386 631 912 AT&T Data Communications Serv
11492 623 632 Cable One
19916 557 563 OLM LLC
7011 547 638 Citizens Utilities
4766 500 689 Korea Telecom (KIX)
855 424 550 Canadian Research Network
5668 412 529 CenturyTel Internet Holdings,
15270 405 436 PaeTec.net -a division of Pae
1239 390 846 Sprint
9498 371 659 BHARTI BT INTERNET LTD.
4755 368 936 Videsh Sanchar Nigam Ltd. Aut
6517 364 395 Yipes Communications, Inc.
702 355 572 UUNET - Commercial IP service
6198 353 508 BellSouth Network Solutions,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:42 12:1619 13:1 15:16 16:3
17:3 18:4 20:41 24:747 25:1 32:58
38:230 40:53 41:3 44:3 47:6 52:4
55:1 56:3 57:25 58:184 59:231 60:182
61:859 62:783 63:1886 64:3184 65:2187 66:3124
67:616 68:667 69:1532 70:397 71:82 72:765
74:43 80:785 81:654 82:597 83:423 84:386
85:551 86:386 87:359 88:107 89:262 121:1
122:2 123:1 124:279 125:524 128:158 129:188
130:118 131:316 132:33 133:8 134:159 135:48
136:178 137:81 138:206 139:60 140:469 141:134
142:380 143:166 144:222 145:40 146:319 147:136
148:318 149:188 150:114 151:93 152:69 153:106
154:5 155:204 156:98 157:146 158:169 159:171
160:91 161:77 162:244 163:153 164:180 165:211
166:171 167:246 168:490 169:128 170:335 171:14
183:1 190:75 192:5736 193:3369 194:2645 195:1918
196:857 198:3904 199:3226 200:4484 201:1009 202:6682
203:7029 204:3906 205:2048 206:2424 207:2908 208:2121
209:3780 210:1980 211:689 212:1263 213:1467 214:362
215:41 216:4243 217:1155 218:294 219:231 220:721
221:359 222:188
End of report
