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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 01 May, 2006
Analysis Summary
----------------
BGP routing table entries examined: 187799
Prefixes after maximum aggregation: 103573
Unique aggregates announced to Internet: 91717
Total ASes present in the Internet Routing Table: 22030
Origin-only ASes present in the Internet Routing Table: 19174
Origin ASes announcing only one prefix: 9130
Transit ASes present in the Internet Routing Table: 2856
Transit-only ASes present in the Internet Routing Table: 65
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 26
Max AS path prepend of ASN (32609) 16
Prefixes from unregistered ASNs in the Routing Table: 5
Unregistered ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1530837408
Equivalent to 91 /8s, 62 /16s and 185 /24s
Percentage of available address space announced: 41.3
Percentage of allocated address space announced: 59.7
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 92644
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 39471
Total APNIC prefixes after maximum aggregation: 16497
Prefixes being announced from the APNIC address blocks: 37182
Unique aggregates announced from the APNIC address blocks: 18190
APNIC Region origin ASes present in the Internet Routing Table: 2541
APNIC Region origin ASes announcing only one prefix: 716
APNIC Region transit ASes present in the Internet Routing Table: 390
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 224821728
Equivalent to 13 /8s, 102 /16s and 129 /24s
Percentage of available APNIC address space announced: 70.3
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: 97497
Total ARIN prefixes after maximum aggregation: 57584
Prefixes being announced from the ARIN address blocks: 71628
Unique aggregates announced from the ARIN address blocks: 26271
ARIN Region origin ASes present in the Internet Routing Table: 10660
ARIN Region origin ASes announcing only one prefix: 3998
ARIN Region transit ASes present in the Internet Routing Table: 983
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 288918528
Equivalent to 17 /8s, 56 /16s and 140 /24s
Percentage of available ARIN address space announced: 74.9
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: 37434
Total RIPE prefixes after maximum aggregation: 24981
Prefixes being announced from the RIPE address blocks: 34462
Unique aggregates announced from the RIPE address blocks: 23176
RIPE Region origin ASes present in the Internet Routing Table: 7928
RIPE Region origin ASes announcing only one prefix: 4146
RIPE Region transit ASes present in the Internet Routing Table: 1301
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 247052736
Equivalent to 14 /8s, 185 /16s and 185 /24s
Percentage of available RIPE address space announced: 77.5
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: 11256
Total LACNIC prefixes after maximum aggregation: 3617
Prefixes being announced from the LACNIC address blocks: 9352
Unique aggregates announced from the LACNIC address blocks: 5419
LACNIC Region origin ASes present in the Internet Routing Table: 682
LACNIC Region origin ASes announcing only one prefix: 223
LACNIC Region transit ASes present in the Internet Routing Table: 129
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 26
Number of LACNIC addresses announced to Internet: 26742272
Equivalent to 1 /8s, 152 /16s and 14 /24s
Percentage of available LACNIC address space announced: 39.8
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: 2136
Total AfriNIC prefixes after maximum aggregation: 894
Prefixes being announced from the AfriNIC address blocks: 1464
Unique aggregates announced from the AfriNIC address blocks: 949
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: 25
Average AfriNIC Region AS path length visible: 3.5
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC addresses announced to Internet: 4061952
Equivalent to 0 /8s, 61 /16s and 251 /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 1128 7088 221 CHINANET-BACKBONE
4755 908 259 70 Videsh Sanchar Nigam Ltd. Aut
9583 897 109 16 Sify Limited
4766 680 4436 307 Korea Telecom (KIX)
1221 616 1556 471 Telstra Pty Ltd
9498 577 212 72 BHARTI BT INTERNET LTD.
7545 526 108 68 TPG Internet Pty Ltd
17488 501 31 7 Hathway IP Over Cable Interne
17676 485 7013 107 Softbank BB Corp.
9443 450 110 81 Primus Telecommunications
4802 382 81 176 Wantree Development
17849 346 22 113 Telecommunications Technology
2907 336 1749 312 SINET Japan
18101 335 69 24 Reliance Infocom Ltd Internet
9929 324 221 57 China Netcom Corp.
17557 324 27 157 Pakistan Telecom
17974 308 120 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 1500 6251 972 AT&T WorldNet Services
4323 1288 732 251 Time Warner Telecom
6197 1008 618 472 BellSouth Network Solutions,
721 1005 21945 305 DLA Systems Automation Center
174 961 5787 908 Cogent Communications
19029 951 151 111 New Edge Networks
18566 936 272 8 Covad Communications
701 931 8029 771 UUNET Technologies, Inc.
2386 873 521 672 AT&T Data Communications Serv
1239 843 2804 597 Sprint
209 715 3600 558 Qwest
19262 689 2021 161 Verizon Global Networks
20115 681 595 363 Charter Communications
22773 655 1737 44 Cox Communications, Inc.
7011 632 217 413 Citizens Utilities
11492 629 86 20 Cable One
852 582 1085 384 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
702 579 1951 455 UUNET - Commercial IP service
3352 310 1612 29 Ibernet, Internet Access Netw
3301 307 1071 292 TeliaNet Sweden
3320 289 3989 239 Deutsche Telekom AG
8220 289 474 267 COLT Telecommunications
680 245 2025 242 DFN-IP service G-WiN
3246 232 504 222 Song Networks
6746 226 88 201 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
1257 196 742 170 SWIPnet Swedish IP Network
3215 196 1662 93 France Telecom Transpac
3269 196 2070 73 TELECOM ITALIA
8866 181 37 16 Bulgarian Telecommunication C
786 171 1778 171 The JANET IP Service
5400 171 363 140 BT Ignite European Backbone
6830 169 765 35 UPC Distribution Services
9121 168 931 27 TTnet Autonomous System
30890 163 15 62 SC Kappa Invexim SRL
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 696 1067 224 UniNet S.A. de C.V.
22047 408 158 11 VTR PUNTO NET S.A.
11172 323 110 84 Servicios Alestra S.A de C.V
16814 316 20 8 NSS, S.A.
6147 261 124 23 Telefonica Del Peru
14117 205 12 6 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
7303 160 75 18 Telecom Argentina Stet-France
21826 135 16 21 INTERCABLE
5639 132 12 9 Telecommunications Services o
11556 132 80 4 Cable-Wireless Panama
6503 130 149 79 AVANTEL, S.A.
19169 127 8 20 Telconet
14259 114 10 12 GTD Internet S.A.
23216 109 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.
14522 99 13 7 SatNet S.A.
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 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
12455 43 6 7 Jambonet Autonomous system
5713 39 294 35 Telkom SA Ltd
15706 31 8 3 Sudatel Internet Exchange Aut
33774 30 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
21491 19 17 2 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1288 1037 Time Warner Telecom
18566 936 928 Covad Communications
4134 1128 907 CHINANET-BACKBONE
9583 897 881 Sify Limited
19029 951 840 New Edge Networks
4755 908 838 Videsh Sanchar Nigam Ltd. Aut
721 1005 700 DLA Systems Automation Center
22773 655 611 Cox Communications, Inc.
11492 629 609 Cable One
6197 1008 536 BellSouth Network Solutions,
19262 689 528 Verizon Global Networks
19916 563 509 OLM LLC
9498 577 505 BHARTI BT INTERNET LTD.
5668 533 503 CenturyTel Internet Holdings,
17488 501 494 Hathway IP Over Cable Interne
855 550 487 Canadian Research Network
8151 696 472 UniNet S.A. de C.V.
7757 478 459 AT&T Broadband
7545 526 458 TPG Internet Pty Ltd
3602 537 428 Sprint Canada, Inc.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65241 PRIVATE 65.90.71.0/24 10794 Bank of America
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
/13:199 /14:361 /15:701 /16:8814 /17:3191 /18:5247
/19:11603 /20:13093 /21:11324 /22:14548 /23:15635 /24:101854
/25:382 /26:276 /27:223 /28:61 /29:70 /30:34
/31:0 /32:30
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 919 936 Covad Communications
19029 882 951 New Edge Networks
6197 797 1008 BellSouth Network Solutions,
7018 795 1500 AT&T WorldNet Services
9583 725 897 Sify Limited
4323 631 1288 Time Warner Telecom
11492 620 629 Cable One
2386 594 873 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 541 632 Citizens Utilities
4766 490 680 Korea Telecom (KIX)
7757 460 478 AT&T Broadband
855 425 550 Canadian Research Network
5668 414 533 CenturyTel Internet Holdings,
1239 380 843 Sprint
15270 378 409 PaeTec.net -a division of Pae
702 359 579 UUNET - Commercial IP service
6198 356 505 BellSouth Network Solutions,
6517 354 384 Yipes Communications, Inc.
17849 346 346 Telecommunications Technology
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 8:40 12:1631 13:1 15:12 16:3
17:3 18:4 20:43 24:887 25:1 30:2
32:58 38:210 40:54 41:1 44:3 47:6
52:4 55:1 56:3 57:30 58:150 59:189
60:181 61:837 62:785 63:1922 64:3156 65:2209
66:3108 67:598 68:677 69:1488 70:327 71:77
72:675 73:23 74:30 80:786 81:631 82:601
83:381 84:381 85:529 86:385 87:321 88:76
89:161 124:253 125:360 128:163 129:181 130:108
131:320 132:32 133:8 134:158 135:46 136:178
137:71 138:197 139:67 140:465 141:133 142:384
143:164 144:220 145:43 146:324 147:137 148:329
149:186 150:114 151:81 152:64 153:107 154:6
155:196 156:97 157:142 158:170 159:171 160:87
161:74 162:253 163:145 164:179 165:194 166:163
167:245 168:482 169:134 170:331 171:13 183:1
190:59 192:5773 193:3352 194:2593 195:1833 196:854
198:3905 199:3241 200:4441 201:913 202:6569 203:6862
204:3879 205:2094 206:2409 207:2937 208:2064 209:3794
210:1916 211:691 212:1266 213:1477 214:348 215:41
216:4108 217:1163 218:274 219:182 220:652 221:358
222:147
End of report
