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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 05 May, 2006
Analysis Summary
----------------
BGP routing table entries examined: 187473
Prefixes after maximum aggregation: 103583
Unique aggregates announced to Internet: 91792
Total ASes present in the Internet Routing Table: 22083
Origin-only ASes present in the Internet Routing Table: 19205
Origin ASes announcing only one prefix: 9161
Transit ASes present in the Internet Routing Table: 2878
Transit-only ASes present in the Internet Routing Table: 68
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 26
Max AS path prepend of ASN (34527) 16
Prefixes from unregistered ASNs in the Routing Table: 31
Unregistered ASNs in the Routing Table: 7
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1531324320
Equivalent to 91 /8s, 70 /16s and 39 /24s
Percentage of available address space announced: 41.3
Percentage of allocated address space announced: 59.8
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 92361
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 39524
Total APNIC prefixes after maximum aggregation: 16524
Prefixes being announced from the APNIC address blocks: 37247
Unique aggregates announced from the APNIC address blocks: 18260
APNIC Region origin ASes present in the Internet Routing Table: 2546
APNIC Region origin ASes announcing only one prefix: 719
APNIC Region transit ASes present in the Internet Routing Table: 391
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 225087968
Equivalent to 13 /8s, 106 /16s and 145 /24s
Percentage of available APNIC address space announced: 70.4
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: 97070
Total ARIN prefixes after maximum aggregation: 57500
Prefixes being announced from the ARIN address blocks: 71268
Unique aggregates announced from the ARIN address blocks: 26364
ARIN Region origin ASes present in the Internet Routing Table: 10679
ARIN Region origin ASes announcing only one prefix: 4004
ARIN Region transit ASes present in the Internet Routing Table: 985
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 289954048
Equivalent to 17 /8s, 72 /16s and 89 /24s
Percentage of available ARIN address space announced: 75.1
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, 64/5, 72/6, 76/8, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 37544
Total RIPE prefixes after maximum aggregation: 25048
Prefixes being announced from the RIPE address blocks: 34555
Unique aggregates announced from the RIPE address blocks: 23145
RIPE Region origin ASes present in the Internet Routing Table: 7954
RIPE Region origin ASes announcing only one prefix: 4169
RIPE Region transit ASes present in the Internet Routing Table: 1316
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 247756480
Equivalent to 14 /8s, 196 /16s and 118 /24s
Percentage of available RIPE address space announced: 77.7
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
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: 11214
Total LACNIC prefixes after maximum aggregation: 3621
Prefixes being announced from the LACNIC address blocks: 9327
Unique aggregates announced from the LACNIC address blocks: 5425
LACNIC Region origin ASes present in the Internet Routing Table: 682
LACNIC Region origin ASes announcing only one prefix: 222
LACNIC Region transit ASes present in the Internet Routing Table: 127
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 26
Number of LACNIC addresses announced to Internet: 26812416
Equivalent to 1 /8s, 153 /16s and 32 /24s
Percentage of available LACNIC address space announced: 40.0
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: 2115
Total AfriNIC prefixes after maximum aggregation: 890
Prefixes being announced from the AfriNIC address blocks: 1459
Unique aggregates announced from the AfriNIC address blocks: 950
AfriNIC Region origin ASes present in the Internet Routing Table: 154
AfriNIC Region origin ASes announcing only one prefix: 47
AfriNIC Region transit ASes present in the Internet Routing Table: 27
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 4062208
Equivalent to 0 /8s, 61 /16s and 252 /24s
Percentage of available AfriNIC address space announced: 12.1
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 1129 7088 221 CHINANET-BACKBONE
4755 913 259 71 Videsh Sanchar Nigam Ltd. Aut
9583 904 109 16 Sify Limited
4766 676 4435 303 Korea Telecom (KIX)
1221 616 1556 471 Telstra Pty Ltd
9498 566 211 67 BHARTI BT INTERNET LTD.
7545 530 124 70 TPG Internet Pty Ltd
17488 501 31 7 Hathway IP Over Cable Interne
17676 486 7029 108 Softbank BB Corp.
9443 450 110 81 Primus Telecommunications
4802 383 81 177 Wantree Development
17849 347 22 113 Telecommunications Technology
18101 338 85 24 Reliance Infocom Ltd Internet
2907 336 1749 312 SINET Japan
17557 329 28 158 Pakistan Telecom
9929 324 221 57 China Netcom Corp.
17974 311 120 29 PT TELEKOMUNIKASI INDONESIA
7474 298 211 228 SingTel Optus Pty Ltd
9800 273 410 67 CHINA UNICOM
9837 265 78 158 Powertel Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1505 6256 965 AT&T WorldNet Services
4323 1291 733 253 Time Warner Telecom
6197 1007 618 472 BellSouth Network Solutions,
721 1000 21929 303 DLA Systems Automation Center
174 963 5787 909 Cogent Communications
19029 951 151 111 New Edge Networks
18566 937 272 8 Covad Communications
701 920 8009 763 UUNET Technologies, Inc.
2386 877 522 676 AT&T Data Communications Serv
1239 847 2805 599 Sprint
209 713 3595 559 Qwest
19262 695 2081 164 Verizon Global Networks
20115 688 601 369 Charter Communications
22773 655 1745 45 Cox Communications, Inc.
7011 633 217 413 Citizens Utilities
11492 631 87 21 Cable One
852 581 1085 383 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 550 244 63 Canadian Research Network
3602 537 127 109 Sprint Canada, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 580 1951 456 UUNET - Commercial IP service
3352 310 1612 29 Ibernet, Internet Access Netw
3301 306 1071 292 TeliaNet Sweden
8220 289 474 267 COLT Telecommunications
3320 286 3989 239 Deutsche Telekom AG
680 245 2025 242 DFN-IP service G-WiN
3246 233 504 223 Song Networks
6746 227 89 203 Dynamic Network Technologies,
8708 218 276 201 Romania Data Systems S.A.
24863 207 40 9 LINKdotNET AS number
8551 202 198 24 Bezeq International
3269 198 2134 72 TELECOM ITALIA
3215 196 1662 93 France Telecom Transpac
1257 195 742 169 SWIPnet Swedish IP Network
8866 177 37 16 Bulgarian Telecommunication C
6830 175 765 35 UPC Distribution Services
786 171 1778 171 The JANET IP Service
5400 170 363 139 BT Ignite European Backbone
30890 170 15 63 SC Kappa Invexim SRL
9121 169 931 27 TTnet Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 698 1067 225 UniNet S.A. de C.V.
22047 408 158 11 VTR PUNTO NET S.A.
11172 324 110 84 Servicios Alestra S.A de C.V
16814 317 20 8 NSS, S.A.
6147 262 126 22 Telefonica Del Peru
14117 205 12 6 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
7303 161 75 19 Telecom Argentina Stet-France
21826 138 16 21 INTERCABLE
5639 132 12 9 Telecommunications Services o
11556 132 80 4 Cable-Wireless Panama
6503 129 149 78 AVANTEL, S.A.
19169 127 8 20 Telconet
14259 114 10 12 GTD Internet S.A.
23216 110 21 9 RAMtelecom Telecomunicaciones
6505 106 88 78 Global One Communicaoes Ltda
7910 105 7 10 ANDINET ON LINE
19429 103 58 44 E.T.B.
14571 97 25 3 Internet Group do Brasil
18822 97 6 8 TELEFONICA MANQUEHUE
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 278 803 233 The Internet Solution
8452 170 60 7 TEDATA
6713 145 135 11 Itissalat Al-MAGHRIB
2018 123 314 104 Tertiary Education Network
5536 121 8 18 Internet Egypt Network
24835 117 50 7 RAYA Telecom - Egypt
33783 105 6 2 EEPAD TISP TELECOM & INTERNET
2905 73 155 66 The Internetworking Company o
20928 57 16 2 Noor Advanced Technologies AS
15475 55 84 4 Nile Online
5713 39 294 35 Telkom SA Ltd
15706 31 8 3 Sudatel Internet Exchange Aut
33774 30 7 20 AS Number for Telecom Algeria
12455 28 6 3 Jambonet Autonomous system
23889 26 8 11 MAURITIUS TELECOM
8524 24 1 4 AUCEGYPT Autonomous System
16637 24 14 22 Johnnic e-Ventures
10798 22 1 13 Standard Bank of South Africa
2561 19 6 2 Egyptian Universities Network
21280 19 5 5 Swift Global Kenya Ltd.Is an
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1291 1038 Time Warner Telecom
18566 937 929 Covad Communications
4134 1129 908 CHINANET-BACKBONE
9583 904 888 Sify Limited
4755 913 842 Videsh Sanchar Nigam Ltd. Aut
19029 951 840 New Edge Networks
721 1000 697 DLA Systems Automation Center
22773 655 610 Cox Communications, Inc.
11492 631 610 Cable One
6197 1007 535 BellSouth Network Solutions,
19262 695 531 Verizon Global Networks
5668 535 512 CenturyTel Internet Holdings,
19916 563 509 OLM LLC
9498 566 499 BHARTI BT INTERNET LTD.
17488 501 494 Hathway IP Over Cable Interne
855 550 487 Canadian Research Network
8151 698 473 UniNet S.A. de C.V.
7545 530 460 TPG Internet Pty Ltd
3602 537 428 Sprint Canada, Inc.
22047 408 397 VTR PUNTO NET S.A.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
36656 UNALLOCATED 64.18.154.0/24 19318 Albany International
36656 UNALLOCATED 64.20.54.0/24 19318 Albany International
36656 UNALLOCATED 64.20.55.0/24 19318 Albany International
36656 UNALLOCATED 64.20.57.0/24 19318 Albany International
36656 UNALLOCATED 64.20.58.0/24 19318 Albany International
36656 UNALLOCATED 64.20.59.0/24 19318 Albany International
36656 UNALLOCATED 64.20.60.0/24 19318 Albany International
36656 UNALLOCATED 64.20.61.0/24 19318 Albany International
36656 UNALLOCATED 64.20.62.0/24 19318 Albany International
65241 PRIVATE 65.90.71.0/24 10794 Bank of America
36727 UNALLOCATED 74.128.0.0/15 3356 Level 3 Communicatio
36727 UNALLOCATED 74.128.0.0/13 3356 Level 3 Communicatio
36727 UNALLOCATED 74.130.0.0/16 3356 Level 3 Communicatio
36727 UNALLOCATED 74.131.0.0/16 3356 Level 3 Communicatio
36727 UNALLOCATED 74.132.0.0/16 3356 Level 3 Communicatio
36727 UNALLOCATED 74.133.0.0/17 3356 Level 3 Communicatio
36727 UNALLOCATED 74.133.128.0/18 3356 Level 3 Communicatio
36727 UNALLOCATED 74.134.0.0/15 1239 Sprint
36727 UNALLOCATED 74.136.0.0/16 1239 Sprint
36727 UNALLOCATED 74.136.0.0/15 3356 Level 3 Communicatio
36727 UNALLOCATED 74.137.0.0/18 3356 Level 3 Communicatio
36727 UNALLOCATED 74.137.64.0/20 3356 Level 3 Communicatio
36727 UNALLOCATED 74.137.80.0/20 3356 Level 3 Communicatio
36727 UNALLOCATED 74.137.96.0/20 3356 Level 3 Communicatio
36727 UNALLOCATED 74.137.112.0/20 1239 Sprint
36727 UNALLOCATED 74.137.128.0/17 3356 Level 3 Communicatio
65289 PRIVATE 148.164.1.0/24 4755 Videsh Sanchar Nigam
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
65280 PRIVATE 203.197.161.0/24 4755 Videsh Sanchar Nigam
65280 PRIVATE 203.200.14.0/24 4755 Videsh Sanchar Nigam
65280 PRIVATE 203.200.21.0/24 4755 Videsh Sanchar Nigam
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
192.119.135.0/24 270 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 /10:9 /11:28 /12:89
/13:200 /14:361 /15:707 /16:8798 /17:3201 /18:5279
/19:11599 /20:13096 /21:11311 /22:14484 /23:15602 /24:101611
/25:385 /26:270 /27:219 /28:62 /29:70 /30:35
/31:0 /32:30
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 920 937 Covad Communications
19029 882 951 New Edge Networks
6197 796 1007 BellSouth Network Solutions,
7018 794 1505 AT&T WorldNet Services
9583 732 904 Sify Limited
4323 635 1291 Time Warner Telecom
11492 622 631 Cable One
2386 597 877 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 542 633 Citizens Utilities
4766 486 676 Korea Telecom (KIX)
855 425 550 Canadian Research Network
5668 415 535 CenturyTel Internet Holdings,
15270 388 419 PaeTec.net -a division of Pae
1239 384 847 Sprint
702 359 580 UUNET - Commercial IP service
6198 356 505 BellSouth Network Solutions,
6517 356 386 Yipes Communications, Inc.
17849 347 347 Telecommunications Technology
8151 343 698 UniNet S.A. de C.V.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 8:43 12:1632 13:1 15:12 16:3
17:3 18:4 20:43 24:738 25:1 30:2
32:58 38:209 40:54 41:1 44:3 47:6
52:4 55:1 56:3 57:25 58:150 59:188
60:182 61:842 62:762 63:1926 64:3173 65:2203
66:2989 67:601 68:659 69:1485 70:328 71:80
72:687 73:23 74:31 80:813 81:656 82:613
83:384 84:383 85:526 86:389 87:323 88:80
89:165 124:265 125:380 128:165 129:181 130:109
131:320 132:29 133:8 134:158 135:46 136:179
137:71 138:197 139:67 140:465 141:133 142:384
143:163 144:226 145:43 146:324 147:136 148:330
149:188 150:116 151:80 152:64 153:106 154:6
155:195 156:97 157:143 158:162 159:171 160:87
161:72 162:259 163:146 164:180 165:194 166:163
167:244 168:467 169:129 170:332 171:13 183:1
190:59 192:5734 193:3362 194:2601 195:1840 196:842
198:3900 199:3234 200:4408 201:919 202:6598 203:6887
204:3887 205:2060 206:2408 207:2941 208:2076 209:3802
210:1915 211:684 212:1188 213:1479 214:353 215:40
216:4118 217:1171 218:275 219:184 220:655 221:359
222:149
End of report
