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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 18 May, 2006
Analysis Summary
----------------
BGP routing table entries examined: 188300
Prefixes after maximum aggregation: 104108
Unique aggregates announced to Internet: 92369
Total ASes present in the Internet Routing Table: 22189
Origin-only ASes present in the Internet Routing Table: 19305
Origin ASes announcing only one prefix: 9217
Transit ASes present in the Internet Routing Table: 2884
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: 20
Max AS path prepend of ASN (34527) 16
Prefixes from unregistered ASNs in the Routing Table: 10
Unregistered ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1538208936
Equivalent to 91 /8s, 175 /16s and 52 /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: 93001
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 39656
Total APNIC prefixes after maximum aggregation: 16663
Prefixes being announced from the APNIC address blocks: 37361
Unique aggregates announced from the APNIC address blocks: 18370
APNIC Region origin ASes present in the Internet Routing Table: 2556
APNIC Region origin ASes announcing only one prefix: 726
APNIC Region transit ASes present in the Internet Routing Table: 387
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 225919712
Equivalent to 13 /8s, 119 /16s and 66 /24s
Percentage of available APNIC address space announced: 70.6
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: 97489
Total ARIN prefixes after maximum aggregation: 57681
Prefixes being announced from the ARIN address blocks: 71567
Unique aggregates announced from the ARIN address blocks: 26496
ARIN Region origin ASes present in the Internet Routing Table: 10711
ARIN Region origin ASes announcing only one prefix: 4014
ARIN Region transit ASes present in the Internet Routing Table: 987
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 292562176
Equivalent to 17 /8s, 112 /16s and 37 /24s
Percentage of available ARIN address space announced: 75.8
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: 37688
Total RIPE prefixes after maximum aggregation: 25199
Prefixes being announced from the RIPE address blocks: 34686
Unique aggregates announced from the RIPE address blocks: 23323
RIPE Region origin ASes present in the Internet Routing Table: 8012
RIPE Region origin ASes announcing only one prefix: 4200
RIPE Region transit ASes present in the Internet Routing Table: 1321
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 249963972
Equivalent to 14 /8s, 230 /16s and 37 /24s
Percentage of available RIPE address space announced: 78.4
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: 11346
Total LACNIC prefixes after maximum aggregation: 3671
Prefixes being announced from the LACNIC address blocks: 9438
Unique aggregates announced from the LACNIC address blocks: 5501
LACNIC Region origin ASes present in the Internet Routing Table: 690
LACNIC Region origin ASes announcing only one prefix: 229
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: 17
Number of LACNIC addresses announced to Internet: 26942720
Equivalent to 1 /8s, 155 /16s and 29 /24s
Percentage of available LACNIC address space announced: 40.1
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: 2112
Total AfriNIC prefixes after maximum aggregation: 894
Prefixes being announced from the AfriNIC address blocks: 1465
Unique aggregates announced from the AfriNIC address blocks: 961
AfriNIC Region origin ASes present in the Internet Routing Table: 156
AfriNIC Region origin ASes announcing only one prefix: 48
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: 4076032
Equivalent to 0 /8s, 62 /16s and 50 /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 1136 7079 216 CHINANET-BACKBONE
9583 901 109 16 Sify Limited
4755 899 259 73 Videsh Sanchar Nigam Ltd. Aut
4766 685 4435 304 Korea Telecom (KIX)
1221 615 1556 471 Telstra Pty Ltd
9498 561 211 67 BHARTI BT INTERNET LTD.
7545 531 124 70 TPG Internet Pty Ltd
17488 501 31 7 Hathway IP Over Cable Interne
17676 487 7029 109 Softbank BB Corp.
9443 450 110 81 Primus Telecommunications
4802 380 80 173 Wantree Development
17849 350 22 112 Telecommunications Technology
18101 345 85 23 Reliance Infocom Ltd Internet
17974 340 135 19 PT TELEKOMUNIKASI INDONESIA
2907 336 1749 312 SINET Japan
17557 335 28 165 Pakistan Telecom
9929 326 221 57 China Netcom Corp.
7474 299 211 229 SingTel Optus Pty Ltd
9800 273 410 67 CHINA UNICOM
9837 266 78 159 Powertel Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1516 6229 968 AT&T WorldNet Services
4323 1293 734 255 Time Warner Telecom
6197 1006 622 472 BellSouth Network Solutions,
721 996 21945 303 DLA Systems Automation Center
174 955 5786 899 Cogent Communications
19029 949 151 109 New Edge Networks
18566 939 272 8 Covad Communications
701 930 6763 770 UUNET Technologies, Inc.
2386 880 522 678 AT&T Data Communications Serv
1239 848 2805 599 Sprint
209 706 3673 552 Qwest
19262 705 2106 170 Verizon Global Networks
20115 695 609 376 Charter Communications
22773 659 1745 45 Cox Communications, Inc.
7011 635 218 413 Citizens Utilities
11492 632 86 23 Cable One
852 583 1084 383 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 545 244 64 Canadian Research Network
3602 540 128 110 Sprint Canada, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 579 1952 457 UUNET - Commercial IP service
3301 307 1071 293 TeliaNet Sweden
3352 297 1644 30 Ibernet, Internet Access Netw
8220 294 472 267 COLT Telecommunications
3320 286 3989 240 Deutsche Telekom AG
680 245 2025 242 DFN-IP service G-WiN
3246 235 504 225 Song Networks
6746 232 89 208 Dynamic Network Technologies,
8708 218 275 201 Romania Data Systems S.A.
24863 210 41 10 LINKdotNET AS number
8551 202 198 24 Bezeq International
3215 199 1664 94 France Telecom Transpac
3269 198 2134 72 TELECOM ITALIA
1257 192 742 167 SWIPnet Swedish IP Network
8866 181 37 16 Bulgarian Telecommunication C
30890 178 16 66 SC Kappa Invexim SRL
786 171 1778 171 The JANET IP Service
5400 171 348 140 BT Ignite European Backbone
6830 169 765 35 UPC Distribution Services
9121 168 931 27 TTnet Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 706 1083 223 UniNet S.A. de C.V.
22047 417 158 11 VTR PUNTO NET S.A.
16814 331 20 8 NSS, S.A.
11172 323 110 87 Servicios Alestra S.A de C.V
6147 262 126 22 Telefonica Del Peru
14117 205 12 6 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
7303 167 78 23 Telecom Argentina Stet-France
11556 132 80 4 Cable-Wireless Panama
21826 131 16 22 INTERCABLE
19169 129 8 21 Telconet
6503 116 148 75 AVANTEL, S.A.
14259 116 10 12 GTD Internet S.A.
23216 112 21 9 RAMtelecom Telecomunicaciones
5639 109 12 9 Telecommunications Services o
6505 109 88 79 Global One Communicaoes Ltda
7910 105 7 10 ANDINET ON LINE
19429 103 58 44 E.T.B.
18822 98 7 9 TELEFONICA MANQUEHUE
14571 97 25 3 Internet Group do Brasil
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 278 803 233 The Internet Solution
8452 168 60 7 TEDATA
6713 137 135 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 58 16 2 Noor Advanced Technologies AS
15475 52 84 4 Nile Online
5713 39 294 35 Telkom SA Ltd
15706 31 8 3 Sudatel Internet Exchange Aut
12455 28 6 3 Jambonet Autonomous system
33774 27 7 20 AS Number for Telecom Algeria
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 1293 1038 Time Warner Telecom
18566 939 931 Covad Communications
4134 1136 920 CHINANET-BACKBONE
9583 901 885 Sify Limited
19029 949 840 New Edge Networks
4755 899 826 Videsh Sanchar Nigam Ltd. Aut
721 996 693 DLA Systems Automation Center
22773 659 614 Cox Communications, Inc.
11492 632 609 Cable One
19262 705 535 Verizon Global Networks
6197 1006 534 BellSouth Network Solutions,
19916 563 509 OLM LLC
5668 525 502 CenturyTel Internet Holdings,
9498 561 494 BHARTI BT INTERNET LTD.
17488 501 494 Hathway IP Over Cable Interne
8151 706 483 UniNet S.A. de C.V.
855 545 481 Canadian Research Network
7545 531 461 TPG Internet Pty Ltd
3602 540 430 Sprint Canada, Inc.
22047 417 406 VTR PUNTO NET S.A.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65241 PRIVATE 65.90.71.0/24 10794 Bank of America
65289 PRIVATE 148.164.1.0/24 4755 Videsh Sanchar Nigam
65128 PRIVATE 193.110.50.0/24 24652 Juniper Networks, Eu
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
64515 PRIVATE 203.126.13.0/25 7610 SINGAPORE ADVANCE RE
64515 PRIVATE 203.126.13.128/26 7610 SINGAPORE ADVANCE RE
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
36366 UNALLOCATED 216.130.247.0/24 174 Cogent Communication
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 /12:91
/13:200 /14:361 /15:706 /16:8816 /17:3209 /18:5317
/19:11653 /20:13118 /21:11350 /22:14555 /23:15708 /24:102096
/25:382 /26:260 /27:193 /28:64 /29:70 /30:49
/31:0 /32:38
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 922 939 Covad Communications
19029 880 949 New Edge Networks
7018 801 1516 AT&T WorldNet Services
6197 795 1006 BellSouth Network Solutions,
9583 729 901 Sify Limited
4323 636 1293 Time Warner Telecom
11492 623 632 Cable One
2386 605 880 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 544 635 Citizens Utilities
4766 495 685 Korea Telecom (KIX)
855 426 545 Canadian Research Network
5668 408 525 CenturyTel Internet Holdings,
15270 396 427 PaeTec.net -a division of Pae
1239 385 848 Sprint
702 360 579 UUNET - Commercial IP service
6198 357 509 BellSouth Network Solutions,
6517 357 388 Yipes Communications, Inc.
17849 350 350 Telecommunications Technology
8151 349 706 UniNet S.A. de C.V.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:42 12:1625 13:1 15:12 16:3
17:3 18:4 20:43 24:741 25:1 30:2
32:58 38:216 40:54 41:3 44:3 47:6
52:4 55:1 56:3 57:25 58:150 59:191
60:180 61:856 62:758 63:1926 64:3188 65:2258
66:3007 67:610 68:673 69:1502 70:358 71:85
72:711 73:23 74:36 80:767 81:636 82:604
83:392 84:390 85:532 86:396 87:334 88:88
89:190 124:276 125:386 128:155 129:190 130:114
131:319 132:33 133:8 134:159 135:46 136:177
137:75 138:207 139:68 140:468 141:136 142:380
143:165 144:229 145:39 146:328 147:136 148:330
149:186 150:114 151:90 152:67 153:107 154:6
155:197 156:100 157:145 158:165 159:168 160:87
161:75 162:261 163:147 164:180 165:194 166:163
167:244 168:489 169:128 170:336 171:14 183:1
190:99 192:5761 193:3367 194:2620 195:1834 196:845
198:3905 199:3220 200:4427 201:933 202:6618 203:6873
204:3896 205:2075 206:2412 207:2900 208:2089 209:3784
210:1955 211:689 212:1231 213:1470 214:349 215:41
216:4130 217:1144 218:274 219:193 220:656 221:358
222:161
End of report
