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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 28 Oct, 2005
Analysis Summary
----------------
BGP routing table entries examined: 172965
Prefixes after maximum aggregation: 98236
Unique aggregates announced to Internet: 84074
Total ASes present in the Internet Routing Table: 20764
Origin-only ASes present in the Internet Routing Table: 18050
Origin ASes announcing only one prefix: 8561
Transit ASes present in the Internet Routing Table: 2714
Transit-only ASes present in the Internet Routing Table: 72
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 24
Prefixes from unregistered ASNs in the Routing Table: 13
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1453533184
Equivalent to 86 /8s, 163 /16s and 40 /24s
Percentage of available address space announced: 39.2
Percentage of allocated address space announced: 59.0
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 82606
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 36112
Total APNIC prefixes after maximum aggregation: 15803
Prefixes being announced from the APNIC address blocks: 33860
Unique aggregates announced from the APNIC address blocks: 16772
APNIC Region origin ASes present in the Internet Routing Table: 2395
APNIC Region origin ASes announcing only one prefix: 697
APNIC Region transit ASes present in the Internet Routing Table: 365
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 204537984
Equivalent to 12 /8s, 49 /16s and 0 /24s
Percentage of available APNIC address space announced: 75.9
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, 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: 91675
Total ARIN prefixes after maximum aggregation: 55535
Prefixes being announced from the ARIN address blocks: 71681
Unique aggregates announced from the ARIN address blocks: 27094
ARIN Region origin ASes present in the Internet Routing Table: 10276
ARIN Region origin ASes announcing only one prefix: 3794
ARIN Region transit ASes present in the Internet Routing Table: 963
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 273213184
Equivalent to 16 /8s, 72 /16s and 231 /24s
Percentage of available ARIN address space announced: 67.9
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, 64/6, 68/7, 70/6, 74/7, 76/8,
198/7, 204/6, 208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 33673
Total RIPE prefixes after maximum aggregation: 22802
Prefixes being announced from the RIPE address blocks: 30690
Unique aggregates announced from the RIPE address blocks: 20481
RIPE Region origin ASes present in the Internet Routing Table: 7244
RIPE Region origin ASes announcing only one prefix: 3822
RIPE Region transit ASes present in the Internet Routing Table: 1202
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 221570240
Equivalent to 13 /8s, 52 /16s and 228 /24s
Percentage of available RIPE address space announced: 66.0
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, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 9685
Total LACNIC prefixes after maximum aggregation: 3273
Prefixes being announced from the LACNIC address blocks: 8000
Unique aggregates announced from the LACNIC address blocks: 4700
LACNIC Region origin ASes present in the Internet Routing Table: 645
LACNIC Region origin ASes announcing only one prefix: 206
LACNIC Region transit ASes present in the Internet Routing Table: 122
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 22337536
Equivalent to 1 /8s, 84 /16s and 216 /24s
Percentage of available LACNIC address space announced: 33.3
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: 1803
Total AfriNIC prefixes after maximum aggregation: 823
Prefixes being announced from the AfriNIC address blocks: 1122
Unique aggregates announced from the AfriNIC address blocks: 826
AfriNIC Region origin ASes present in the Internet Routing Table: 141
AfriNIC Region origin ASes announcing only one prefix: 42
AfriNIC Region transit ASes present in the Internet Routing Table: 19
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2847744
Equivalent to 0 /8s, 43 /16s and 116 /24s
Percentage of available AfriNIC address space announced: 8.5
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 1010 6318 214 CHINANET-BACKBONE
9583 817 77 12 Sify Limited
1221 753 1327 516 Telstra Pty Ltd
4755 742 259 67 Videsh Sanchar Nigam Ltd. Aut
4766 619 3927 290 Korea Telecom (KIX)
7545 512 108 71 TPG Internet Pty Ltd
17676 470 6819 100 Softbank BB Corp.
9443 392 87 78 Primus Telecommunications
9498 390 211 58 BHARTI BT INTERNET LTD.
17488 366 22 10 Hathway IP Over Cable Interne
2907 339 1763 316 SINET Japan
9929 332 224 46 China Netcom Corp.
7474 331 258 227 SingTel Optus Pty Ltd
17557 331 24 163 Pakistan Telecom
4802 329 72 154 Wantree Development
18302 294 109 171 SK Global co., Ltd
9837 275 79 176 Powertel Ltd
17974 274 65 16 PT TELEKOMUNIKASI INDONESIA
18101 266 68 19 Reliance Infocom Ltd Internet
703 255 260 211 UUNET - Commercial IP service
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1490 6324 973 AT&T WorldNet Services
4323 1189 705 232 Time Warner Telecom
721 1075 21938 308 DLA Systems Automation Center
174 1053 5847 992 Cogent Communications
701 999 8152 839 UUNET Technologies, Inc.
6197 945 399 487 BellSouth Network Solutions,
2386 923 545 689 AT&T Data Communications Serv
18566 865 240 7 Covad Communications
1239 851 2851 599 Sprint
209 642 3571 508 Qwest
20115 633 515 334 Charter Communications
3602 573 131 109 Sprint Canada, Inc.
19916 563 49 54 OLM LLC
22773 546 1352 27 Cox Communications, Inc.
3356 529 10638 405 Level 3 Communications, LLC
19262 518 1510 141 Verizon Global Networks
5668 484 147 23 CenturyTel Internet Holdings,
3561 476 2409 403 Savvis
7132 467 5092 399 SBC Internet Services
6198 448 576 207 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 606 1960 478 UUNET - Commercial IP service
3301 305 1085 291 TeliaNet Sweden
3320 286 3231 241 Deutsche Telekom AG
8220 270 475 265 COLT Telecommunications
680 244 2040 239 DFN-IP service G-WiN
8708 238 274 223 Romania Data Systems S.A.
3246 227 475 220 Song Networks
6746 196 51 168 Dynamic Network Technologies,
1257 190 712 168 SWIPnet Swedish IP Network
5515 182 840 128 Sonera Solution Autonomous Sy
3269 181 1734 69 TELECOM ITALIA
786 175 1795 175 The JANET IP Service
5400 173 317 143 BT Ignite European Backbone
6830 161 669 33 UPC Distribution Services
3300 160 169 92 AUCS Communications Services
8866 160 37 9 Bulgarian Telecommunication C
25186 151 227 106 France Telecom Transpac's Tra
3215 142 1229 81 France Telecom Transpac
24863 142 37 6 LINKdotNET AS number
3352 137 1384 33 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 384 641 165 UniNet S.A. de C.V.
16814 297 18 7 NSS, S.A.
11172 278 88 70 Servicios Alestra S.A de C.V
11664 198 22 13 Keytech SA
19632 196 14 5 Metropolis Intercom S.A.
14117 184 11 6 Telefonica del Sur S.A.
22047 170 128 7 VTR PUNTO NET S.A.
6147 163 118 21 Telefonica Del Peru
7303 143 68 20 Telecom Argentina Stet-France
11556 133 64 3 Cable-Wireless Panama
6505 121 89 85 Global One Communicaoes Ltda
10481 121 48 8 Prima S.A.
13999 119 52 9 Mega Cable S.A. de C.V.
18822 112 7 13 TELEFONICA MANQUEHUE
5639 111 12 9 Telecommunications Services o
6503 109 148 76 AVANTEL, S.A.
21826 108 14 17 INTERCABLE
19169 103 6 45 Telconet
11311 99 8 10 Sinectis S.A.
23216 90 23 12 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 269 708 227 The Internet Solution
8452 131 44 7 TEDATA
5536 123 8 12 Internet Egypt Network
2018 94 295 85 Tertiary Education Network
15475 82 84 4 Nile Online
2905 78 211 71 The Internetworking Company o
6713 71 71 10 Itissalat Al-MAGHRIB
20928 61 16 2 Noor Advanced Technologies AS
24835 58 34 6 RAYA Telecom - Egypt
5713 37 149 33 Telkom SA Ltd
12455 35 6 3 Jambonet Autonomous system
33774 32 3 22 AS Number for Telecom Algeria
15706 31 8 3 Sudatel Internet Exchange Aut
16637 24 10 21 Johnnic e-Ventures
8524 23 1 4 AUCEGYPT Autonomous System
10798 22 1 13 Standard Bank of South Africa
21280 21 4 4 Swift Global Kenya Ltd.Is an
23889 19 5 9 MAURITIUS TELECOM
12258 17 3 11 Vodacom Internet Company
15804 17 2 1 AS of The Way Out Internet So
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1189 957 Time Warner Telecom
18566 865 858 Covad Communications
9583 817 805 Sify Limited
4134 1010 796 CHINANET-BACKBONE
721 1075 767 DLA Systems Automation Center
4755 742 675 Videsh Sanchar Nigam Ltd. Aut
22773 546 519 Cox Communications, Inc.
19916 563 509 OLM LLC
3602 573 464 Sprint Canada, Inc.
5668 484 461 CenturyTel Internet Holdings,
6197 945 458 BellSouth Network Solutions,
7545 512 441 TPG Internet Pty Ltd
19262 518 377 Verizon Global Networks
17676 470 370 Softbank BB Corp.
17488 366 356 Hathway IP Over Cable Interne
11492 361 350 Cable One
812 368 343 Rogers WAVE
6467 385 337 E.Spire Communications, Inc.
9498 390 332 BHARTI BT INTERNET LTD.
4766 619 329 Korea Telecom (KIX)
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65003 PRIVATE 57.250.244.0/24 13879 SITA-EQUANT
65002 PRIVATE 64.119.148.0/22 19406 Towerstream
65506 PRIVATE 64.151.117.0/24 26228 ServePath, LLC
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
64826 PRIVATE 64.200.255.0/24 7911 Williams Communicati
65001 PRIVATE 69.177.73.128/27 8002 Stealth Communicatio
64643 PRIVATE 140.253.192.0/20 24434 James Cook Universit
65205 PRIVATE 152.163.5.0/24 2056 America Online
64512 PRIVATE 170.51.242.0/24 19037 CTI Compania de Tele
65111 PRIVATE 194.165.131.0/24 8376 GO-JOR Autonomous Sy
24413 UNALLOCATED 202.46.32.0/19 17623 China Netcom Corp.
18428 UNALLOCATED 203.91.0.0/24 9505 Taiwan Internet Gate
65103 PRIVATE 216.53.126.0/23 7270 Net2Phone Corp.
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
192.43.230.0/24 7575 Australian Academic and Rease
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
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
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 /9:5 /10:8 /11:18 /12:79
/13:183 /14:338 /15:652 /16:8601 /17:2855 /18:4796
/19:10897 /20:11978 /21:10043 /22:13281 /23:14279 /24:94024
/25:330 /26:278 /27:188 /28:33 /29:10 /30:38
/31:3 /32:30
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 849 865 Covad Communications
6197 772 945 BellSouth Network Solutions,
7018 724 1490 AT&T WorldNet Services
9583 640 817 Sify Limited
2386 635 923 AT&T Data Communications Serv
4323 566 1189 Time Warner Telecom
19916 557 563 OLM LLC
4766 427 619 Korea Telecom (KIX)
5668 389 484 CenturyTel Internet Holdings,
702 384 606 UUNET - Commercial IP service
7011 383 443 Citizens Utilities
1239 361 851 Sprint
11492 353 361 Cable One
6517 323 349 Yipes Communications, Inc.
15270 316 343 PaeTec.net -a division of Pae
6198 313 448 BellSouth Network Solutions,
13609 288 329 Choice One Communications Inc
701 283 999 UUNET Technologies, Inc.
18302 279 294 SK Global co., Ltd
22773 278 546 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:27 12:1606 13:1 15:11 16:3
17:3 18:3 20:41 24:572 30:2 32:68
38:166 40:54 44:3 47:2 52:4 55:1
56:3 57:36 58:97 59:90 60:147 61:790
62:791 63:1887 64:2957 65:2115 66:2975 67:642
68:645 69:1280 70:211 71:33 72:415 80:651
81:586 82:511 83:308 84:306 85:365 86:143
87:61 125:19 128:163 129:168 130:97 131:296
132:36 133:1 134:148 135:40 136:166 137:68
138:166 139:68 140:471 141:141 142:148 143:142
144:219 145:34 146:298 147:131 148:269 149:198
150:110 151:68 152:112 153:93 154:5 155:142
156:78 157:112 158:149 159:176 160:87 161:76
162:237 163:145 164:190 165:187 166:155 167:256
168:449 169:142 170:303 171:12 190:1 192:5731
193:3331 194:2436 195:1570 196:701 198:3909 199:3246
200:4203 201:403 202:6210 203:6537 204:3835 205:2028
206:2443 207:2842 208:2016 209:3440 210:1705 211:828
212:1217 213:1360 214:321 215:42 216:3850 217:1150
218:219 219:131 220:502 221:298 222:133
End of report
