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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 07 Jun, 2006
Analysis Summary
----------------
BGP routing table entries examined: 189975
Prefixes after maximum aggregation: 104567
Unique aggregates announced to Internet: 93062
Total ASes present in the Internet Routing Table: 22390
Origin-only ASes present in the Internet Routing Table: 19485
Origin ASes announcing only one prefix: 9342
Transit ASes present in the Internet Routing Table: 2905
Transit-only ASes present in the Internet Routing Table: 56
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: 8
Unregistered ASNs in the Routing Table: 7
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 9
Number of addresses announced to Internet: 1542845160
Equivalent to 91 /8s, 245 /16s and 242 /24s
Percentage of available address space announced: 41.6
Percentage of allocated address space announced: 60.2
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 94123
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 40511
Total APNIC prefixes after maximum aggregation: 16847
Prefixes being announced from the APNIC address blocks: 38233
Unique aggregates announced from the APNIC address blocks: 18530
APNIC Region origin ASes present in the Internet Routing Table: 2596
APNIC Region origin ASes announcing only one prefix: 745
APNIC Region transit ASes present in the Internet Routing Table: 397
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 227542368
Equivalent to 13 /8s, 144 /16s and 5 /24s
Percentage of available APNIC address space announced: 71.1
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: 97813
Total ARIN prefixes after maximum aggregation: 57765
Prefixes being announced from the ARIN address blocks: 71774
Unique aggregates announced from the ARIN address blocks: 26623
ARIN Region origin ASes present in the Internet Routing Table: 10758
ARIN Region origin ASes announcing only one prefix: 4058
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: 293135360
Equivalent to 17 /8s, 120 /16s and 228 /24s
Percentage of available ARIN address space announced: 76.0
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: 37990
Total RIPE prefixes after maximum aggregation: 25369
Prefixes being announced from the RIPE address blocks: 34997
Unique aggregates announced from the RIPE address blocks: 23630
RIPE Region origin ASes present in the Internet Routing Table: 8128
RIPE Region origin ASes announcing only one prefix: 4261
RIPE Region transit ASes present in the Internet Routing Table: 1341
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 252319108
Equivalent to 15 /8s, 10 /16s and 21 /24s
Percentage of available RIPE address space announced: 79.2
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: 11474
Total LACNIC prefixes after maximum aggregation: 3688
Prefixes being announced from the LACNIC address blocks: 9567
Unique aggregates announced from the LACNIC address blocks: 5541
LACNIC Region origin ASes present in the Internet Routing Table: 695
LACNIC Region origin ASes announcing only one prefix: 231
LACNIC Region transit ASes present in the Internet Routing Table: 131
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 27223808
Equivalent to 1 /8s, 159 /16s and 103 /24s
Percentage of available LACNIC address space announced: 40.6
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: 2179
Total AfriNIC prefixes after maximum aggregation: 898
Prefixes being announced from the AfriNIC address blocks: 1501
Unique aggregates announced from the AfriNIC address blocks: 962
AfriNIC Region origin ASes present in the Internet Routing Table: 157
AfriNIC Region origin ASes announcing only one prefix: 47
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: 13
Number of AfriNIC addresses announced to Internet: 4124928
Equivalent to 0 /8s, 62 /16s and 241 /24s
Percentage of available AfriNIC address space announced: 12.3
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 1205 7158 224 CHINANET-BACKBONE
4755 924 259 73 Videsh Sanchar Nigam Ltd. Aut
9583 906 109 16 Sify Limited
4766 690 4435 304 Korea Telecom (KIX)
1221 613 1668 471 Telstra Pty Ltd
9498 568 211 67 BHARTI BT INTERNET LTD.
7545 534 124 70 TPG Internet Pty Ltd
17488 514 32 9 Hathway IP Over Cable Interne
17676 486 7029 110 Softbank BB Corp.
9443 450 110 81 Primus Telecommunications
18101 414 85 24 Reliance Infocom Ltd Internet
17557 397 31 178 Pakistan Telecom
4802 378 80 173 Wantree Development
17849 359 22 114 Telecommunications Technology
17974 342 119 17 PT TELEKOMUNIKASI INDONESIA
2907 336 1733 312 SINET Japan
9929 326 221 58 China Netcom Corp.
7474 297 211 227 SingTel Optus Pty Ltd
9800 274 410 67 CHINA UNICOM
9837 267 78 160 Powertel Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1480 6182 945 AT&T WorldNet Services
4323 1303 739 260 Time Warner Telecom
721 1015 21997 311 DLA Systems Automation Center
6197 1008 625 471 BellSouth Network Solutions,
174 969 5787 904 Cogent Communications
19029 947 151 109 New Edge Networks
701 945 6765 779 UUNET Technologies, Inc.
18566 942 272 8 Covad Communications
2386 894 557 689 AT&T Data Communications Serv
1239 846 2789 600 Sprint
20115 712 617 380 Charter Communications
19262 709 2103 183 Verizon Global Networks
209 706 3687 550 Qwest
22773 663 1741 40 Cox Communications, Inc.
7011 637 218 415 Citizens Utilities
11492 622 87 22 Cable One
852 581 1084 382 Telus Advanced Communications
6478 574 1543 339 AT&T Worldnet Services
19916 563 49 54 OLM LLC
855 551 244 64 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 574 1951 452 UUNET - Commercial IP service
3352 307 1644 30 Ibernet, Internet Access Netw
3301 305 1327 292 TeliaNet Sweden
3320 287 3989 240 Deutsche Telekom AG
8220 277 471 265 COLT Telecommunications
680 245 2025 242 DFN-IP service G-WiN
6746 239 90 213 Dynamic Network Technologies,
3246 235 504 225 Song Networks
8708 216 275 201 Romania Data Systems S.A.
24863 214 42 11 LINKdotNET AS number
3215 200 1680 93 France Telecom Transpac
3269 200 2150 72 TELECOM ITALIA
8551 200 198 24 Bezeq International
30890 192 17 67 SC Kappa Invexim SRL
1257 190 740 166 SWIPnet Swedish IP Network
8866 180 37 15 Bulgarian Telecommunication C
6830 172 781 36 UPC Distribution Services
786 171 1778 171 The JANET IP Service
5400 171 348 140 BT Ignite European Backbone
9121 169 931 28 TTnet Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 705 1082 223 UniNet S.A. de C.V.
22047 418 158 11 VTR PUNTO NET S.A.
11172 351 110 84 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
6147 262 126 22 Telefonica Del Peru
14117 201 12 6 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
7303 173 81 25 Telecom Argentina Stet-France
6503 133 150 81 AVANTEL, S.A.
21826 133 17 23 INTERCABLE
11556 132 80 4 Cable-Wireless Panama
19169 129 8 21 Telconet
14259 119 10 15 GTD Internet S.A.
23216 114 21 9 RAMtelecom Telecomunicaciones
14522 113 16 5 SatNet S.A.
19429 110 60 44 E.T.B.
6505 109 88 79 Global One Communicaoes Ltda
7910 105 7 10 ANDINET ON LINE
5639 103 12 9 Telecommunications Services o
18822 98 7 9 TELEFONICA MANQUEHUE
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 286 803 234 The Internet Solution
8452 166 60 7 TEDATA
6713 147 135 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
33783 104 6 2 EEPAD TISP TELECOM & INTERNET
2905 73 155 66 The Internetworking Company o
15475 61 84 4 Nile Online
20928 59 16 2 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
12455 26 6 3 Jambonet Autonomous system
23889 26 8 11 MAURITIUS TELECOM
16637 25 18 23 Johnnic e-Ventures
8524 22 1 5 AUCEGYPT Autonomous System
10798 22 1 13 Standard Bank of South Africa
21280 21 4 4 Swift Global Kenya Ltd.Is an
33766 21 2 1 Nyala Communications Pty Ltd
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1303 1043 Time Warner Telecom
4134 1205 981 CHINANET-BACKBONE
18566 942 934 Covad Communications
9583 906 890 Sify Limited
4755 924 851 Videsh Sanchar Nigam Ltd. Aut
19029 947 838 New Edge Networks
721 1015 704 DLA Systems Automation Center
22773 663 623 Cox Communications, Inc.
11492 622 600 Cable One
6197 1008 537 BellSouth Network Solutions,
19262 709 526 Verizon Global Networks
19916 563 509 OLM LLC
5668 529 506 CenturyTel Internet Holdings,
17488 514 505 Hathway IP Over Cable Interne
9498 568 501 BHARTI BT INTERNET LTD.
855 551 487 Canadian Research Network
8151 705 482 UniNet S.A. de C.V.
7545 534 464 TPG Internet Pty Ltd
3602 526 421 Sprint Canada, Inc.
22047 418 407 VTR PUNTO NET S.A.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
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
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 /8:18 /9:9 /10:9 /11:28 /12:92
/13:200 /14:360 /15:704 /16:8842 /17:3242 /18:5369
/19:11716 /20:13250 /21:11519 /22:14712 /23:15861 /24:102949
/25:383 /26:299 /27:185 /28:67 /29:71 /30:50
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 925 942 Covad Communications
19029 878 947 New Edge Networks
6197 793 1008 BellSouth Network Solutions,
7018 784 1480 AT&T WorldNet Services
9583 735 906 Sify Limited
4323 636 1303 Time Warner Telecom
2386 613 894 AT&T Data Communications Serv
11492 613 622 Cable One
19916 557 563 OLM LLC
7011 546 637 Citizens Utilities
4766 500 690 Korea Telecom (KIX)
855 425 551 Canadian Research Network
5668 412 529 CenturyTel Internet Holdings,
15270 403 434 PaeTec.net -a division of Pae
1239 391 846 Sprint
6517 364 395 Yipes Communications, Inc.
17849 359 359 Telecommunications Technology
4755 358 924 Videsh Sanchar Nigam Ltd. Aut
702 357 574 UUNET - Commercial IP service
6198 355 508 BellSouth Network Solutions,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:42 11:1 12:1626 13:1 15:15
16:3 17:3 18:4 20:43 24:734 25:1
32:57 38:229 40:54 41:3 44:3 47:6
52:4 55:1 56:3 57:25 58:180 59:208
60:188 61:866 62:761 63:1924 64:3173 65:2252
66:3057 67:612 68:669 69:1524 70:375 71:80
72:754 74:39 80:779 81:652 82:590 83:400
84:386 85:537 86:385 87:357 88:92 89:240
124:295 125:464 128:166 129:190 130:116 131:318
132:33 133:8 134:159 135:48 136:178 137:81
138:206 139:61 140:469 141:129 142:381 143:165
144:224 145:39 146:326 147:136 148:318 149:188
150:114 151:94 152:69 153:107 154:5 155:202
156:101 157:151 158:168 159:172 160:89 161:75
162:244 163:148 164:178 165:206 166:166 167:245
168:492 169:128 170:339 171:14 183:1 190:75
192:5755 193:3369 194:2635 195:1892 196:850 198:3887
199:3220 200:4465 201:981 202:6657 203:7003 204:3886
205:2036 206:2419 207:2896 208:2135 209:3779 210:1968
211:671 212:1262 213:1455 214:361 215:40 216:4173
217:1165 218:289 219:238 220:717 221:359 222:158
End of report
