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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 06 Jul, 2006
Analysis Summary
----------------
BGP routing table entries examined: 191474
Prefixes after maximum aggregation: 105445
Unique aggregates announced to Internet: 93719
Total ASes present in the Internet Routing Table: 22587
Origin-only ASes present in the Internet Routing Table: 19656
Origin ASes announcing only one prefix: 9439
Transit ASes present in the Internet Routing Table: 2931
Transit-only ASes present in the Internet Routing Table: 63
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 24
Max AS path prepend of ASN (32609) 16
Prefixes from unregistered ASNs in the Routing Table: 2
Unregistered ASNs in the Routing Table: 2
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 9
Number of addresses announced to Internet: 1539236520
Equivalent to 91 /8s, 190 /16s and 226 /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: 94717
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 41272
Total APNIC prefixes after maximum aggregation: 16976
Prefixes being announced from the APNIC address blocks: 38981
Unique aggregates announced from the APNIC address blocks: 18455
APNIC Region origin ASes present in the Internet Routing Table: 2626
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: 234967648
Equivalent to 14 /8s, 1 /16s and 82 /24s
Percentage of available APNIC address space announced: 73.5
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: 97709
Total ARIN prefixes after maximum aggregation: 58093
Prefixes being announced from the ARIN address blocks: 71572
Unique aggregates announced from the ARIN address blocks: 27047
ARIN Region origin ASes present in the Internet Routing Table: 10811
ARIN Region origin ASes announcing only one prefix: 4082
ARIN Region transit ASes present in the Internet Routing Table: 992
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 295113728
Equivalent to 17 /8s, 151 /16s and 20 /24s
Percentage of available ARIN address space announced: 76.5
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: 38442
Total RIPE prefixes after maximum aggregation: 25732
Prefixes being announced from the RIPE address blocks: 35479
Unique aggregates announced from the RIPE address blocks: 23894
RIPE Region origin ASes present in the Internet Routing Table: 8223
RIPE Region origin ASes announcing only one prefix: 4324
RIPE Region transit ASes present in the Internet Routing Table: 1355
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 255319364
Equivalent to 15 /8s, 55 /16s and 221 /24s
Percentage of available RIPE address space announced: 80.1
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: 11770
Total LACNIC prefixes after maximum aggregation: 3746
Prefixes being announced from the LACNIC address blocks: 9881
Unique aggregates announced from the LACNIC address blocks: 5630
LACNIC Region origin ASes present in the Internet Routing Table: 707
LACNIC Region origin ASes announcing only one prefix: 238
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: 28327936
Equivalent to 1 /8s, 176 /16s and 64 /24s
Percentage of available LACNIC address space announced: 42.2
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: 2279
Total AfriNIC prefixes after maximum aggregation: 898
Prefixes being announced from the AfriNIC address blocks: 1543
Unique aggregates announced from the AfriNIC address blocks: 953
AfriNIC Region origin ASes present in the Internet Routing Table: 157
AfriNIC Region origin ASes announcing only one prefix: 45
AfriNIC Region transit ASes present in the Internet Routing Table: 25
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 11
Number of AfriNIC addresses announced to Internet: 4172032
Equivalent to 0 /8s, 63 /16s and 169 /24s
Percentage of available AfriNIC address space announced: 12.4
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 1241 7286 225 CHINANET-BACKBONE
4755 945 258 74 Videsh Sanchar Nigam Ltd. Aut
9583 915 109 15 Sify Limited
9498 707 211 68 BHARTI BT INTERNET LTD.
4766 689 4435 303 Korea Telecom (KIX)
1221 611 1668 468 Telstra Pty Ltd
7545 547 124 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 422 85 24 Reliance Infocom Ltd Internet
17974 410 129 14 PT TELEKOMUNIKASI INDONESIA
17849 388 28 122 Telecommunications Technology
17557 382 30 172 Pakistan Telecom
4802 381 81 168 Wantree Development
2907 335 1733 311 SINET Japan
9929 330 255 61 China Netcom Corp.
7474 299 211 229 SingTel Optus Pty Ltd
4837 280 3085 123 chinanet IDC center beijing n
10139 278 19 5 Meridian Telekoms
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1476 6261 942 AT&T WorldNet Services
4323 1332 747 266 Time Warner Telecom
721 1026 21998 315 DLA Systems Automation Center
6197 1015 636 477 BellSouth Network Solutions,
174 960 5771 894 Cogent Communications
701 946 6754 779 UUNET Technologies, Inc.
18566 945 272 8 Covad Communications
2386 917 560 711 AT&T Data Communications Serv
1239 844 2776 600 Sprint
19262 723 2188 191 Verizon Global Networks
20115 714 619 382 Charter Communications
209 697 3681 550 Qwest
22773 671 1741 40 Cox Communications, Inc.
7011 650 218 413 Citizens Utilities
11492 642 89 10 Cable One
6198 599 568 236 BellSouth Network Solutions,
852 582 1084 382 Telus Advanced Communications
855 573 247 74 Canadian Research Network
19916 563 49 54 OLM LLC
5668 529 147 23 CenturyTel Internet Holdings,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 565 1932 444 UUNET - Commercial IP service
3301 314 1186 299 TeliaNet Sweden
3352 305 1643 30 Ibernet, Internet Access Netw
3320 280 3988 235 Deutsche Telekom AG
8220 280 471 266 COLT Telecommunications
680 246 2041 243 DFN-IP service G-WiN
6746 232 89 207 Dynamic Network Technologies,
3246 230 463 220 Song Networks
24863 216 42 11 LINKdotNET AS number
8708 214 276 203 Romania Data Systems S.A.
8551 209 198 29 Bezeq International
3215 202 1728 96 France Telecom Transpac
3269 202 2184 73 TELECOM ITALIA
30890 202 18 78 SC Kappa Invexim SRL
1257 194 741 166 SWIPnet Swedish IP Network
8866 187 37 15 Bulgarian Telecommunication C
6830 175 813 37 UPC Distribution Services
786 169 1778 169 The JANET IP Service
3300 169 171 98 AUCS Communications Services
12479 161 322 5 Uni2 Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 719 1159 222 UniNet S.A. de C.V.
22047 432 206 11 VTR PUNTO NET S.A.
11172 356 113 86 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
6147 267 134 22 Telefonica Del Peru
14117 207 13 7 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
6503 178 151 82 AVANTEL, S.A.
7303 177 82 27 Telecom Argentina Stet-France
21826 133 17 23 INTERCABLE
11556 132 80 4 Cable-Wireless Panama
19429 130 68 43 E.T.B.
19169 128 8 29 Telconet
14259 119 10 15 GTD Internet S.A.
14522 117 18 9 SatNet S.A.
23216 115 21 9 RAMtelecom Telecomunicaciones
5639 109 12 9 Telecommunications Services o
6505 109 88 79 Global One Communicaoes Ltda
7738 106 410 20 Telecomunicacoes da Bahia S.A
7910 105 7 10 ANDINET ON LINE
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 287 803 234 The Internet Solution
8452 168 60 7 TEDATA
6713 154 135 11 Itissalat Al-MAGHRIB
2018 135 314 105 Tertiary Education Network
5536 121 8 18 Internet Egypt Network
24835 116 48 6 RAYA Telecom - Egypt
15475 112 84 4 Nile Online
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
10798 23 1 14 Standard Bank of South Africa
12455 23 6 3 Jambonet Autonomous system
21280 23 4 4 Swift Global Kenya Ltd.Is an
8524 22 1 5 AUCEGYPT Autonomous System
23889 22 7 11 MAURITIUS TELECOM
33766 21 2 1 Nyala Communications Pty Ltd
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1332 1066 Time Warner Telecom
4134 1241 1016 CHINANET-BACKBONE
18566 945 937 Covad Communications
9583 915 900 Sify Limited
4755 945 871 Videsh Sanchar Nigam Ltd. Aut
721 1026 711 DLA Systems Automation Center
9498 707 639 BHARTI BT INTERNET LTD.
11492 642 632 Cable One
22773 671 631 Cox Communications, Inc.
6197 1015 538 BellSouth Network Solutions,
19262 723 532 Verizon Global Networks
19916 563 509 OLM LLC
5668 529 506 CenturyTel Internet Holdings,
17488 519 502 Hathway IP Over Cable Interne
855 573 499 Canadian Research Network
8151 719 497 UniNet S.A. de C.V.
7545 547 474 TPG Internet Pty Ltd
3602 526 422 Sprint Canada, Inc.
22047 432 421 VTR PUNTO NET S.A.
15270 440 407 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
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 /10:10 /11:28 /12:93
/13:201 /14:366 /15:715 /16:8864 /17:3293 /18:5412
/19:11823 /20:13428 /21:11704 /22:14821 /23:15977 /24:103625
/25:383 /26:291 /27:181 /28:65 /29:73 /30:55
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 928 945 Covad Communications
6197 795 1015 BellSouth Network Solutions,
7018 786 1476 AT&T WorldNet Services
9583 745 915 Sify Limited
4323 645 1332 Time Warner Telecom
2386 634 917 AT&T Data Communications Serv
11492 630 642 Cable One
7011 559 650 Citizens Utilities
19916 557 563 OLM LLC
4766 500 689 Korea Telecom (KIX)
855 447 573 Canadian Research Network
6198 441 599 BellSouth Network Solutions,
9498 415 707 BHARTI BT INTERNET LTD.
5668 412 529 CenturyTel Internet Holdings,
15270 409 440 PaeTec.net -a division of Pae
1239 388 844 Sprint
17849 382 388 Telecommunications Technology
4755 377 945 Videsh Sanchar Nigam Ltd. Aut
6517 365 396 Yipes Communications, Inc.
22773 353 671 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:41 12:1611 13:1 15:16 16:3
17:3 18:4 20:41 24:769 25:1 32:58
38:228 40:54 41:3 44:3 47:6 52:4
55:1 56:3 57:24 58:188 59:246 60:189
61:859 62:791 63:1883 64:3173 65:2247 66:3115
67:620 68:673 69:1520 70:390 71:85 72:792
74:53 75:1 80:784 81:657 82:627 83:386
84:379 85:565 86:393 87:404 88:109 89:318
121:1 122:2 123:1 124:262 125:545 128:141
129:189 130:119 131:311 132:34 133:8 134:160
135:48 136:178 137:83 138:206 139:54 140:490
141:134 142:384 143:168 144:225 145:39 146:318
147:137 148:342 149:191 150:113 151:94 152:69
153:106 154:5 155:206 156:185 157:146 158:167
159:172 160:91 161:77 162:245 163:160 164:187
165:218 166:172 167:243 168:496 169:128 170:352
171:14 183:1 190:80 192:5727 193:3362 194:2644
195:1946 196:869 198:3959 199:3230 200:4519 201:1007
202:6720 203:7064 204:3901 205:2040 206:2430 207:2918
208:2185 209:3393 210:2053 211:715 212:1240 213:1479
214:364 215:41 216:4003 217:1170 218:293 219:241
220:733 221:363 222:189
End of report
