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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 02 Nov, 2005
Analysis Summary
----------------
BGP routing table entries examined: 173659
Prefixes after maximum aggregation: 98378
Unique aggregates announced to Internet: 84312
Total ASes present in the Internet Routing Table: 20788
Origin-only ASes present in the Internet Routing Table: 18075
Origin ASes announcing only one prefix: 8566
Transit ASes present in the Internet Routing Table: 2713
Transit-only ASes present in the Internet Routing Table: 73
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 27
Prefixes from unregistered ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1454225696
Equivalent to 86 /8s, 173 /16s and 185 /24s
Percentage of available address space announced: 39.2
Percentage of allocated address space announced: 59.1
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 83284
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 36121
Total APNIC prefixes after maximum aggregation: 15792
Prefixes being announced from the APNIC address blocks: 33902
Unique aggregates announced from the APNIC address blocks: 16787
APNIC Region origin ASes present in the Internet Routing Table: 2383
APNIC Region origin ASes announcing only one prefix: 696
APNIC Region transit ASes present in the Internet Routing Table: 362
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 204567936
Equivalent to 12 /8s, 49 /16s and 117 /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: 92267
Total ARIN prefixes after maximum aggregation: 55668
Prefixes being announced from the ARIN address blocks: 71867
Unique aggregates announced from the ARIN address blocks: 27215
ARIN Region origin ASes present in the Internet Routing Table: 10299
ARIN Region origin ASes announcing only one prefix: 3805
ARIN Region transit ASes present in the Internet Routing Table: 959
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 273842688
Equivalent to 16 /8s, 82 /16s and 130 /24s
Percentage of available ARIN address space announced: 68.0
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
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: 33761
Total RIPE prefixes after maximum aggregation: 22828
Prefixes being announced from the RIPE address blocks: 30769
Unique aggregates announced from the RIPE address blocks: 20552
RIPE Region origin ASes present in the Internet Routing Table: 7248
RIPE Region origin ASes announcing only one prefix: 3816
RIPE Region transit ASes present in the Internet Routing Table: 1208
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 221680320
Equivalent to 13 /8s, 54 /16s and 146 /24s
Percentage of available RIPE address space announced: 66.1
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: 9697
Total LACNIC prefixes after maximum aggregation: 3266
Prefixes being announced from the LACNIC address blocks: 8008
Unique aggregates announced from the LACNIC address blocks: 4685
LACNIC Region origin ASes present in the Internet Routing Table: 645
LACNIC Region origin ASes announcing only one prefix: 207
LACNIC Region transit ASes present in the Internet Routing Table: 124
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 27
Number of LACNIC addresses announced to Internet: 22442496
Equivalent to 1 /8s, 86 /16s and 114 /24s
Percentage of available LACNIC address space announced: 33.4
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: 1805
Total AfriNIC prefixes after maximum aggregation: 824
Prefixes being announced from the AfriNIC address blocks: 1120
Unique aggregates announced from the AfriNIC address blocks: 821
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: 18
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2847488
Equivalent to 0 /8s, 43 /16s and 115 /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 1000 6326 214 CHINANET-BACKBONE
9583 818 77 12 Sify Limited
1221 750 1327 514 Telstra Pty Ltd
4755 743 259 67 Videsh Sanchar Nigam Ltd. Aut
4766 623 3927 291 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 388 211 58 BHARTI BT INTERNET LTD.
17488 366 22 10 Hathway IP Over Cable Interne
2907 339 1763 316 SINET Japan
17557 334 25 163 Pakistan Telecom
7474 332 258 228 SingTel Optus Pty Ltd
4802 329 72 154 Wantree Development
9929 327 216 46 China Netcom Corp.
18302 295 109 168 SK Global co., Ltd
9837 275 79 176 Powertel Ltd
17974 272 65 16 PT TELEKOMUNIKASI INDONESIA
18101 267 68 19 Reliance Infocom Ltd Internet
703 254 259 210 UUNET - Commercial IP service
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1486 6327 980 AT&T WorldNet Services
4323 1192 705 232 Time Warner Telecom
721 1072 21938 308 DLA Systems Automation Center
174 1046 5846 986 Cogent Communications
701 1001 8152 841 UUNET Technologies, Inc.
6197 951 407 492 BellSouth Network Solutions,
2386 925 545 689 AT&T Data Communications Serv
18566 869 240 7 Covad Communications
1239 851 2851 600 Sprint
209 650 3604 515 Qwest
20115 637 517 333 Charter Communications
3602 567 131 109 Sprint Canada, Inc.
19916 563 49 54 OLM LLC
855 554 247 64 Canadian Research Network
22773 546 1352 27 Cox Communications, Inc.
3356 529 10638 405 Level 3 Communications, LLC
19262 524 1531 141 Verizon Global Networks
852 496 1093 382 Telus Advanced Communications
6198 486 577 212 BellSouth Network Solutions,
5668 483 147 23 CenturyTel Internet Holdings,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 602 1960 474 UUNET - Commercial IP service
3301 305 1085 291 TeliaNet Sweden
3320 285 3230 240 Deutsche Telekom AG
8220 269 475 264 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 197 51 169 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 166 317 136 BT Ignite European Backbone
6830 161 669 33 UPC Distribution Services
8866 160 37 9 Bulgarian Telecommunication C
3300 159 170 91 AUCS Communications Services
25186 151 227 106 France Telecom Transpac's Tra
24863 145 37 6 LINKdotNET AS number
3215 143 1237 78 France Telecom Transpac
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 296 18 7 NSS, S.A.
11172 278 88 67 Servicios Alestra S.A de C.V
19632 196 14 5 Metropolis Intercom S.A.
11664 195 22 28 Keytech SA
14117 184 11 6 Telefonica del Sur S.A.
22047 170 128 7 VTR PUNTO NET S.A.
6147 161 118 21 Telefonica Del Peru
7303 143 68 20 Telecom Argentina Stet-France
11556 133 64 3 Cable-Wireless Panama
19169 124 8 26 Telconet
13999 122 52 9 Mega Cable S.A. de C.V.
6505 121 89 85 Global One Communicaoes Ltda
10481 121 48 8 Prima S.A.
18822 112 7 13 TELEFONICA MANQUEHUE
5639 111 12 9 Telecommunications Services o
21826 111 14 19 INTERCABLE
6503 108 147 75 AVANTEL, S.A.
11311 99 8 10 Sinectis S.A.
23216 92 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 136 44 7 TEDATA
5536 123 8 12 Internet Egypt Network
2018 93 295 85 Tertiary Education Network
15475 82 84 4 Nile Online
2905 78 211 71 The Internetworking Company o
6713 72 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
15706 31 8 3 Sudatel Internet Exchange Aut
33774 31 3 22 AS Number for Telecom Algeria
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
15808 17 2 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1192 960 Time Warner Telecom
18566 869 862 Covad Communications
9583 818 806 Sify Limited
4134 1000 786 CHINANET-BACKBONE
721 1072 764 DLA Systems Automation Center
4755 743 676 Videsh Sanchar Nigam Ltd. Aut
22773 546 519 Cox Communications, Inc.
19916 563 509 OLM LLC
855 554 490 Canadian Research Network
5668 483 460 CenturyTel Internet Holdings,
6197 951 459 BellSouth Network Solutions,
3602 567 458 Sprint Canada, Inc.
7545 512 441 TPG Internet Pty Ltd
19262 524 383 Verizon Global Networks
17676 470 370 Softbank BB Corp.
17488 366 356 Hathway IP Over Cable Interne
11492 366 355 Cable One
6467 399 351 E.Spire Communications, Inc.
812 368 343 Rogers WAVE
4766 623 332 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
64512 PRIVATE 170.51.242.0/24 19037 CTI Compania de Tele
24413 UNALLOCATED 202.46.32.0/19 17623 China Netcom Corp.
18428 UNALLOCATED 203.91.0.0/24 9505 Taiwan Internet Gate
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 /11:17 /12:79
/13:184 /14:337 /15:655 /16:8599 /17:2861 /18:4804
/19:10938 /20:12002 /21:10076 /22:13349 /23:14407 /24:94405
/25:329 /26:281 /27:189 /28:33 /29:11 /30:40
/31:3 /32:29
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 853 869 Covad Communications
6197 775 951 BellSouth Network Solutions,
7018 722 1486 AT&T WorldNet Services
9583 641 818 Sify Limited
2386 638 925 AT&T Data Communications Serv
4323 570 1192 Time Warner Telecom
19916 557 563 OLM LLC
855 434 554 Canadian Research Network
4766 429 623 Korea Telecom (KIX)
5668 384 483 CenturyTel Internet Holdings,
702 380 602 UUNET - Commercial IP service
7011 380 440 Citizens Utilities
1239 362 851 Sprint
11492 358 366 Cable One
6198 349 486 BellSouth Network Solutions,
6517 322 348 Yipes Communications, Inc.
15270 317 344 PaeTec.net -a division of Pae
13609 292 333 Choice One Communications Inc
701 281 1001 UUNET Technologies, Inc.
18302 280 295 SK Global co., Ltd
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:30 12:1609 13:1 15:11 16:3
17:3 18:3 20:41 24:570 30:2 32:68
38:169 40:54 44:3 47:3 52:4 55:1
56:3 57:36 58:97 59:90 60:147 61:785
62:791 63:1895 64:2972 65:2118 66:2966 67:636
68:654 69:1287 70:216 71:33 72:420 80:663
81:590 82:515 83:308 84:331 85:377 86:150
87:73 125:27 128:158 129:168 130:98 131:307
132:36 133:1 134:147 135:40 136:168 137:68
138:165 139:70 140:432 141:141 142:401 143:143
144:221 145:34 146:298 147:131 148:264 149:199
150:108 151:68 152:111 153:93 154:5 155:144
156:79 157:113 158:148 159:178 160:87 161:76
162:235 163:147 164:190 165:183 166:155 167:255
168:455 169:144 170:311 171:12 190:1 192:5738
193:3325 194:2429 195:1568 196:694 198:3927 199:3249
200:4177 201:413 202:6187 203:6516 204:3813 205:2041
206:2451 207:2864 208:2027 209:3452 210:1726 211:840
212:1216 213:1346 214:312 215:42 216:3871 217:1155
218:216 219:130 220:508 221:298 222:128
End of report
