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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 02 Jul, 2006
Analysis Summary
----------------
BGP routing table entries examined: 191154
Prefixes after maximum aggregation: 105350
Unique aggregates announced to Internet: 93597
Total ASes present in the Internet Routing Table: 22569
Origin-only ASes present in the Internet Routing Table: 19635
Origin ASes announcing only one prefix: 9427
Transit ASes present in the Internet Routing Table: 2934
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: 3
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 9
Number of addresses announced to Internet: 1538570216
Equivalent to 91 /8s, 180 /16s and 183 /24s
Percentage of available address space announced: 41.5
Percentage of allocated address space announced: 60.0
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 94517
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 41165
Total APNIC prefixes after maximum aggregation: 16932
Prefixes being announced from the APNIC address blocks: 38891
Unique aggregates announced from the APNIC address blocks: 18413
APNIC Region origin ASes present in the Internet Routing Table: 2615
APNIC Region origin ASes announcing only one prefix: 742
APNIC Region transit ASes present in the Internet Routing Table: 398
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 234890080
Equivalent to 14 /8s, 0 /16s and 35 /24s
Percentage of available APNIC address space announced: 73.4
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: 97660
Total ARIN prefixes after maximum aggregation: 58076
Prefixes being announced from the ARIN address blocks: 71560
Unique aggregates announced from the ARIN address blocks: 27011
ARIN Region origin ASes present in the Internet Routing Table: 10803
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: 19
Number of ARIN addresses announced to Internet: 294985728
Equivalent to 17 /8s, 149 /16s and 32 /24s
Percentage of available ARIN address space announced: 76.4
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: 38371
Total RIPE prefixes after maximum aggregation: 25706
Prefixes being announced from the RIPE address blocks: 35413
Unique aggregates announced from the RIPE address blocks: 23901
RIPE Region origin ASes present in the Internet Routing Table: 8223
RIPE Region origin ASes announcing only one prefix: 4325
RIPE Region transit ASes present in the Internet Routing Table: 1354
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 255187844
Equivalent to 15 /8s, 53 /16s and 219 /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: 11680
Total LACNIC prefixes after maximum aggregation: 3736
Prefixes being announced from the LACNIC address blocks: 9804
Unique aggregates announced from the LACNIC address blocks: 5588
LACNIC Region origin ASes present in the Internet Routing Table: 707
LACNIC Region origin ASes announcing only one prefix: 235
LACNIC Region transit ASes present in the Internet Routing Table: 135
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 28063232
Equivalent to 1 /8s, 172 /16s and 54 /24s
Percentage of available LACNIC address space announced: 41.8
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: 2276
Total AfriNIC prefixes after maximum aggregation: 900
Prefixes being announced from the AfriNIC address blocks: 1540
Unique aggregates announced from the AfriNIC address blocks: 952
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: 24
Average AfriNIC Region AS path length visible: 3.5
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC addresses announced to Internet: 4162048
Equivalent to 0 /8s, 63 /16s and 130 /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 1242 7294 224 CHINANET-BACKBONE
9583 918 109 15 Sify Limited
4755 901 258 72 Videsh Sanchar Nigam Ltd. Aut
4766 689 4435 303 Korea Telecom (KIX)
9498 681 211 68 BHARTI BT INTERNET LTD.
1221 611 1668 468 Telstra Pty Ltd
7545 547 124 71 TPG Internet Pty Ltd
17488 514 32 22 Hathway IP Over Cable Interne
17676 490 7093 110 Softbank BB Corp.
9443 452 111 83 Primus Telecommunications
18101 421 85 24 Reliance Infocom Ltd Internet
17849 386 28 123 Telecommunications Technology
17557 383 30 173 Pakistan Telecom
4802 382 81 169 Wantree Development
17974 381 129 14 PT TELEKOMUNIKASI INDONESIA
2907 335 1733 311 SINET Japan
9929 330 255 61 China Netcom Corp.
7474 297 211 227 SingTel Optus Pty Ltd
10139 283 19 5 Meridian Telekoms
4837 280 3085 123 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1482 6262 944 AT&T WorldNet Services
4323 1332 747 266 Time Warner Telecom
721 1022 21998 314 DLA Systems Automation Center
6197 1014 636 482 BellSouth Network Solutions,
174 961 5771 895 Cogent Communications
701 945 6754 778 UUNET Technologies, Inc.
18566 945 272 8 Covad Communications
2386 916 560 710 AT&T Data Communications Serv
1239 844 2782 600 Sprint
19262 719 2168 188 Verizon Global Networks
20115 714 619 382 Charter Communications
209 696 3681 550 Qwest
22773 670 1741 40 Cox Communications, Inc.
7011 648 218 412 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
702 564 1932 443 UUNET - Commercial IP service
3301 312 1327 297 TeliaNet Sweden
3352 305 1643 30 Ibernet, Internet Access Netw
3320 282 3988 237 Deutsche Telekom AG
8220 279 471 267 COLT Telecommunications
680 246 2041 243 DFN-IP service G-WiN
6746 239 90 214 Dynamic Network Technologies,
3246 230 463 220 Song Networks
24863 215 42 10 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 199 18 76 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
3300 169 171 98 AUCS Communications Services
786 166 1762 166 The JANET IP Service
12479 161 322 5 Uni2 Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 707 1114 223 UniNet S.A. de C.V.
22047 419 174 11 VTR PUNTO NET S.A.
11172 354 111 84 Servicios Alestra S.A de C.V
16814 328 20 7 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 176 82 25 Telecom Argentina Stet-France
21826 133 17 23 INTERCABLE
11556 132 80 4 Cable-Wireless Panama
19429 130 68 43 E.T.B.
19169 129 8 25 Telconet
14259 119 10 15 GTD Internet S.A.
14522 117 18 9 SatNet S.A.
23216 114 21 9 RAMtelecom Telecomunicaciones
6505 109 88 79 Global One Communicaoes Ltda
7738 106 410 20 Telecomunicacoes da Bahia S.A
7910 105 7 10 ANDINET ON LINE
5639 103 12 9 Telecommunications Services o
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 287 803 234 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
15475 113 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
12455 23 6 3 Jambonet Autonomous system
21280 23 4 4 Swift Global Kenya Ltd.Is an
23889 23 8 11 MAURITIUS TELECOM
8524 22 1 5 AUCEGYPT Autonomous System
10798 22 1 13 Standard Bank of South Africa
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 1242 1018 CHINANET-BACKBONE
18566 945 937 Covad Communications
9583 918 903 Sify Limited
4755 901 829 Videsh Sanchar Nigam Ltd. Aut
721 1022 708 DLA Systems Automation Center
11492 642 632 Cable One
22773 670 630 Cox Communications, Inc.
9498 681 613 BHARTI BT INTERNET LTD.
6197 1014 532 BellSouth Network Solutions,
19262 719 531 Verizon Global Networks
19916 563 509 OLM LLC
5668 529 506 CenturyTel Internet Holdings,
855 573 499 Canadian Research Network
17488 514 492 Hathway IP Over Cable Interne
8151 707 484 UniNet S.A. de C.V.
7545 547 476 TPG Internet Pty Ltd
3602 526 422 Sprint Canada, Inc.
22047 419 408 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
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 /14:364 /15:715 /16:8860 /17:3284 /18:5412
/19:11797 /20:13413 /21:11680 /22:14834 /23:15954 /24:103394
/25:389 /26:295 /27:178 /28:64 /29:67 /30:56
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 928 945 Covad Communications
6197 794 1014 BellSouth Network Solutions,
7018 791 1482 AT&T WorldNet Services
9583 748 918 Sify Limited
4323 645 1332 Time Warner Telecom
2386 633 916 AT&T Data Communications Serv
11492 630 642 Cable One
7011 557 648 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,
5668 412 529 CenturyTel Internet Holdings,
15270 409 440 PaeTec.net -a division of Pae
1239 389 844 Sprint
9498 383 681 BHARTI BT INTERNET LTD.
17849 380 386 Telecommunications Technology
4755 367 901 Videsh Sanchar Nigam Ltd. Aut
6517 363 394 Yipes Communications, Inc.
22773 352 670 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:42 12:1609 13:1 15:16 16:3
17:3 18:4 20:41 24:769 25:1 32:58
38:229 40:54 41:3 44:3 47:6 52:4
55:1 56:3 57:26 58:186 59:246 60:187
61:844 62:805 63:1884 64:3172 65:2247 66:3117
67:620 68:673 69:1521 70:388 71:85 72:795
74:50 75:1 80:778 81:643 82:626 83:391
84:374 85:561 86:390 87:378 88:108 89:308
121:2 122:2 123:1 124:260 125:528 128:140
129:189 130:119 131:308 132:34 133:8 134:160
135:48 136:143 137:83 138:204 139:55 140:491
141:134 142:385 143:168 144:224 145:39 146:313
147:137 148:342 149:191 150:113 151:94 152:69
153:106 154:5 155:206 156:184 157:144 158:167
159:172 160:91 161:77 162:245 163:158 164:183
165:211 166:172 167:243 168:494 169:128 170:352
171:14 183:1 190:81 192:5728 193:3369 194:2641
195:1938 196:873 198:3954 199:3230 200:4502 201:998
202:6719 203:7043 204:3902 205:2046 206:2431 207:2918
208:2170 209:3392 210:2014 211:710 212:1256 213:1482
214:363 215:41 216:4014 217:1162 218:294 219:240
220:731 221:364 222:188
End of report
