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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 14 Jul, 2006
Analysis Summary
----------------
BGP routing table entries examined: 192010
Prefixes after maximum aggregation: 105761
Unique aggregates announced to Internet: 93913
Total ASes present in the Internet Routing Table: 22640
Origin-only ASes present in the Internet Routing Table: 19692
Origin ASes announcing only one prefix: 9449
Transit ASes present in the Internet Routing Table: 2948
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 (34527) 16
Prefixes from unregistered ASNs in the Routing Table: 3
Unregistered ASNs in the Routing Table: 3
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 9
Number of addresses announced to Internet: 1549805480
Equivalent to 92 /8s, 96 /16s and 39 /24s
Percentage of available address space announced: 41.8
Percentage of allocated address space announced: 60.5
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 94868
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 41489
Total APNIC prefixes after maximum aggregation: 17064
Prefixes being announced from the APNIC address blocks: 39186
Unique aggregates announced from the APNIC address blocks: 18445
APNIC Region origin ASes present in the Internet Routing Table: 2622
APNIC Region origin ASes announcing only one prefix: 743
APNIC Region transit ASes present in the Internet Routing Table: 393
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 237453920
Equivalent to 14 /8s, 39 /16s and 66 /24s
Percentage of available APNIC address space announced: 74.2
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: 97716
Total ARIN prefixes after maximum aggregation: 58197
Prefixes being announced from the ARIN address blocks: 71487
Unique aggregates announced from the ARIN address blocks: 26974
ARIN Region origin ASes present in the Internet Routing Table: 10826
ARIN Region origin ASes announcing only one prefix: 4074
ARIN Region transit ASes present in the Internet Routing Table: 1001
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 295626752
Equivalent to 17 /8s, 158 /16s and 232 /24s
Percentage of available ARIN address space announced: 76.6
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: 38565
Total RIPE prefixes after maximum aggregation: 25851
Prefixes being announced from the RIPE address blocks: 35632
Unique aggregates announced from the RIPE address blocks: 24020
RIPE Region origin ASes present in the Internet Routing Table: 8262
RIPE Region origin ASes announcing only one prefix: 4352
RIPE Region transit ASes present in the Internet Routing Table: 1361
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 260066628
Equivalent to 15 /8s, 128 /16s and 77 /24s
Percentage of available RIPE address space announced: 81.6
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: 11972
Total LACNIC prefixes after maximum aggregation: 3751
Prefixes being announced from the LACNIC address blocks: 10019
Unique aggregates announced from the LACNIC address blocks: 5662
LACNIC Region origin ASes present in the Internet Routing Table: 706
LACNIC Region origin ASes announcing only one prefix: 237
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: 31074560
Equivalent to 1 /8s, 218 /16s and 41 /24s
Percentage of available LACNIC address space announced: 46.3
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: 2265
Total AfriNIC prefixes after maximum aggregation: 898
Prefixes being announced from the AfriNIC address blocks: 1521
Unique aggregates announced from the AfriNIC address blocks: 955
AfriNIC Region origin ASes present in the Internet Routing Table: 158
AfriNIC Region origin ASes announcing only one prefix: 43
AfriNIC Region transit ASes present in the Internet Routing Table: 27
Average AfriNIC Region AS path length visible: 3.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 4184576
Equivalent to 0 /8s, 63 /16s and 218 /24s
Percentage of available AfriNIC address space announced: 12.5
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 1240 7494 230 CHINANET-BACKBONE
4755 966 257 74 Videsh Sanchar Nigam Ltd. Aut
9583 910 109 15 Sify Limited
9498 764 211 69 BHARTI BT INTERNET LTD.
4766 689 4435 303 Korea Telecom (KIX)
1221 610 1779 468 Telstra Pty Ltd
7545 550 124 73 TPG Internet Pty Ltd
17488 519 32 17 Hathway IP Over Cable Interne
17676 490 7093 110 Softbank BB Corp.
9443 452 111 83 Primus Telecommunications
18101 424 85 23 Reliance Infocom Ltd Internet
17974 404 129 14 PT TELEKOMUNIKASI INDONESIA
17849 396 28 123 Telecommunications Technology
17557 382 30 172 Pakistan Telecom
4802 378 81 167 Wantree Development
2907 336 1733 311 SINET Japan
9929 299 244 57 China Netcom Corp.
7474 295 211 229 SingTel Optus Pty Ltd
4837 288 3196 128 chinanet IDC center beijing n
10139 280 19 5 Meridian Telekoms
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1471 6246 945 AT&T WorldNet Services
721 1027 21998 315 DLA Systems Automation Center
6197 1013 636 476 BellSouth Network Solutions,
4323 963 746 271 Time Warner Telecom
174 958 5769 890 Cogent Communications
18566 946 272 8 Covad Communications
701 942 6753 777 UUNET Technologies, Inc.
2386 921 558 711 AT&T Data Communications Serv
1239 854 2785 605 Sprint
19262 722 2188 190 Verizon Global Networks
20115 716 621 382 Charter Communications
209 693 3663 548 Qwest
22773 673 1741 40 Cox Communications, Inc.
11492 655 89 11 Cable One
7011 648 218 412 Citizens Utilities
6198 599 568 236 BellSouth Network Solutions,
852 583 1084 382 Telus Advanced Communications
855 573 247 74 Canadian Research Network
19916 563 49 54 OLM LLC
5668 532 147 23 CenturyTel Internet Holdings,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 564 1932 443 UUNET - Commercial IP service
3301 316 1187 301 TeliaNet Sweden
3352 304 1639 33 Ibernet, Internet Access Netw
8220 279 471 265 COLT Telecommunications
3320 278 5012 234 Deutsche Telekom AG
680 246 2041 243 DFN-IP service G-WiN
6746 237 90 212 Dynamic Network Technologies,
3246 230 463 220 Song Networks
24863 216 42 11 LINKdotNET AS number
8708 215 276 204 Romania Data Systems S.A.
8551 209 198 29 Bezeq International
30890 206 18 80 SC Kappa Invexim SRL
3215 204 1760 97 France Telecom Transpac
3269 201 2182 72 TELECOM ITALIA
1257 194 741 166 SWIPnet Swedish IP Network
8866 189 37 15 Bulgarian Telecommunication C
6830 175 813 37 UPC Distribution Services
786 169 1778 169 The JANET IP Service
3300 168 171 97 AUCS Communications Services
5400 160 352 142 BT Ignite European Backbone
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 722 1787 229 UniNet S.A. de C.V.
22047 432 206 11 VTR PUNTO NET S.A.
11172 358 113 85 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
6147 266 132 24 Telefonica Del Peru
6471 253 74 28 ENTEL CHILE S.A.
14117 209 13 7 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
7303 180 84 28 Telecom Argentina Stet-France
6503 178 151 82 AVANTEL, S.A.
21826 133 17 22 INTERCABLE
11556 132 80 4 Cable-Wireless Panama
19429 131 84 45 E.T.B.
14522 129 18 9 SatNet S.A.
19169 129 8 26 Telconet
14259 119 10 15 GTD Internet S.A.
23216 113 21 9 RAMtelecom Telecomunicaciones
5639 109 12 9 Telecommunications Services o
6505 109 88 79 Global One Communicaoes Ltda
14420 108 7 23 ANDINATEL S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 284 803 231 The Internet Solution
8452 169 60 7 TEDATA
6713 144 135 11 Itissalat Al-MAGHRIB
2018 131 314 105 Tertiary Education Network
15475 124 84 4 Nile Online
5536 120 8 18 Internet Egypt Network
24835 116 48 6 RAYA Telecom - Egypt
33783 105 6 2 EEPAD TISP TELECOM & INTERNET
2905 69 139 60 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
16637 25 18 23 Johnnic e-Ventures
23889 24 8 11 MAURITIUS TELECOM
10798 23 1 14 Standard Bank of South Africa
12455 23 6 3 Jambonet Autonomous system
8524 22 1 5 AUCEGYPT Autonomous System
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
4134 1240 1010 CHINANET-BACKBONE
18566 946 938 Covad Communications
9583 910 895 Sify Limited
4755 966 892 Videsh Sanchar Nigam Ltd. Aut
721 1027 712 DLA Systems Automation Center
9498 764 695 BHARTI BT INTERNET LTD.
4323 963 692 Time Warner Telecom
11492 655 644 Cable One
22773 673 633 Cox Communications, Inc.
6197 1013 537 BellSouth Network Solutions,
19262 722 532 Verizon Global Networks
19916 563 509 OLM LLC
5668 532 509 CenturyTel Internet Holdings,
17488 519 502 Hathway IP Over Cable Interne
855 573 499 Canadian Research Network
8151 722 493 UniNet S.A. de C.V.
7545 550 477 TPG Internet Pty Ltd
3602 526 422 Sprint Canada, Inc.
22047 432 421 VTR PUNTO NET S.A.
15270 444 411 PaeTec.net -a division of Pae
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
64820 PRIVATE 208.67.40.0/22 19041 Atomz Corporation
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
198.18.1.0/24 3301 TeliaNet Sweden
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 /10:11 /11:28 /12:94
/13:201 /14:369 /15:722 /16:8896 /17:3311 /18:5439
/19:11873 /20:13479 /21:11774 /22:14914 /23:16064 /24:103682
/25:382 /26:301 /27:178 /28:64 /29:79 /30:77
/31:0 /32:46
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 929 946 Covad Communications
6197 793 1013 BellSouth Network Solutions,
7018 780 1471 AT&T WorldNet Services
9583 740 910 Sify Limited
11492 643 655 Cable One
2386 638 921 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 556 648 Citizens Utilities
4766 500 689 Korea Telecom (KIX)
855 447 573 Canadian Research Network
6198 441 599 BellSouth Network Solutions,
9498 429 764 BHARTI BT INTERNET LTD.
5668 415 532 CenturyTel Internet Holdings,
15270 413 444 PaeTec.net -a division of Pae
1239 396 854 Sprint
17849 390 396 Telecommunications Technology
4755 382 966 Videsh Sanchar Nigam Ltd. Aut
6517 375 409 Yipes Communications, Inc.
18101 355 424 Reliance Infocom Ltd Internet
22773 355 673 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:43 11:1 12:1615 13:1 15:15
16:3 17:3 18:4 20:41 24:775 25:1
32:58 38:234 40:54 41:6 44:3 47:6
52:4 55:1 56:3 57:24 58:190 59:248
60:192 61:857 62:809 63:1892 64:3069 65:2238
66:2943 67:620 68:672 69:1544 70:390 71:85
72:813 74:56 75:1 80:771 81:665 82:625
83:393 84:384 85:568 86:394 87:404 88:111
89:335 121:1 122:3 123:1 124:273 125:551
128:152 129:184 130:119 131:313 132:34 133:8
134:159 135:48 136:178 137:82 138:206 139:51
140:486 141:135 142:383 143:170 144:229 145:40
146:309 147:137 148:344 149:192 150:114 151:95
152:70 153:107 154:5 155:207 156:186 157:145
158:166 159:172 160:90 161:77 162:245 163:160
164:242 165:225 166:174 167:244 168:498 169:125
170:353 171:14 183:1 190:86 192:5724 193:3356
194:2655 195:1960 196:853 198:3962 199:3280 200:4615
201:986 202:6712 203:7081 204:3898 205:2045 206:2406
207:2920 208:2190 209:3405 210:2059 211:708 212:1241
213:1483 214:362 215:41 216:4001 217:1180 218:297
219:227 220:734 221:351 222:188
End of report
