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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 21 Aug, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/08/21/0400
Analysis Summary
----------------
BGP routing table entries examined: 229119
Prefixes after maximum aggregation: 120069
Deaggregation factor: 1.91
Unique aggregates announced to Internet: 111327
Total ASes present in the Internet Routing Table: 25983
Prefixes per ASN: 8.82
Origin-only ASes present in the Internet Routing Table: 22639
Origin ASes announcing only one prefix: 11035
Transit ASes present in the Internet Routing Table: 3344
Transit-only ASes present in the Internet Routing Table: 75
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 21
Max AS path prepend of ASN (35389) 16
Prefixes from unregistered ASNs in the Routing Table: 5
Unregistered ASNs in the Routing Table: 2
Prefixes from 32-bit ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1752322528
Equivalent to 104 /8s, 114 /16s and 81 /24s
Percentage of available address space announced: 47.3
Percentage of allocated address space announced: 61.9
Percentage of available address space allocated: 76.4
Total number of prefixes smaller than registry allocations: 121383
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 53605
Total APNIC prefixes after maximum aggregation: 20829
APNIC Deaggregation factor: 2.57
Prefixes being announced from the APNIC address blocks: 50527
Unique aggregates announced from the APNIC address blocks: 22260
APNIC Region origin ASes present in the Internet Routing Table: 3038
APNIC Prefixes per ASN: 16.63
APNIC Region origin ASes announcing only one prefix: 816
APNIC Region transit ASes present in the Internet Routing Table: 459
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 311946912
Equivalent to 18 /8s, 151 /16s and 238 /24s
Percentage of available APNIC address space announced: 77.3
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, 116/6, 120/6, 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: 108324
Total ARIN prefixes after maximum aggregation: 62745
ARIN Deaggregation factor: 1.73
Prefixes being announced from the ARIN address blocks: 79747
Unique aggregates announced from the ARIN address blocks: 31859
ARIN Region origin ASes present in the Internet Routing Table: 11751
ARIN Prefixes per ASN: 6.79
ARIN Region origin ASes announcing only one prefix: 4526
ARIN Region transit ASes present in the Internet Routing Table: 1073
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 342134016
Equivalent to 20 /8s, 100 /16s and 141 /24s
Percentage of available ARIN address space announced: 75.5
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, 96/6, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 48201
Total RIPE prefixes after maximum aggregation: 31062
RIPE Deaggregation factor: 1.55
Prefixes being announced from the RIPE address blocks: 44585
Unique aggregates announced from the RIPE address blocks: 29284
RIPE Region origin ASes present in the Internet Routing Table: 10067
RIPE Prefixes per ASN: 4.43
RIPE Region origin ASes announcing only one prefix: 5350
RIPE Region transit ASes present in the Internet Routing Table: 1602
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 324115584
Equivalent to 19 /8s, 81 /16s and 156 /24s
Percentage of available RIPE address space announced: 74.3
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
40960-44031
RIPE Address Blocks 62/8, 77/8, 78/7, 80/4, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 16260
Total LACNIC prefixes after maximum aggregation: 4382
LACNIC Deaggregation factor: 3.71
Prefixes being announced from the LACNIC address blocks: 14394
Unique aggregates announced from the LACNIC address blocks: 7735
LACNIC Region origin ASes present in the Internet Routing Table: 847
LACNIC Prefixes per ASN: 16.99
LACNIC Region origin ASes announcing only one prefix: 277
LACNIC Region transit ASes present in the Internet Routing Table: 145
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 42007296
Equivalent to 2 /8s, 128 /16s and 251 /24s
Percentage of available LACNIC address space announced: 62.6
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: 2719
Total AfriNIC prefixes after maximum aggregation: 1041
AfriNIC Deaggregation factor: 2.61
Prefixes being announced from the AfriNIC address blocks: 2251
Unique aggregates announced from the AfriNIC address blocks: 1359
AfriNIC Region origin ASes present in the Internet Routing Table: 204
AfriNIC Prefixes per ASN: 11.03
AfriNIC Region origin ASes announcing only one prefix: 66
AfriNIC Region transit ASes present in the Internet Routing Table: 32
Average AfriNIC Region AS path length visible: 3.9
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 7385856
Equivalent to 0 /8s, 112 /16s and 179 /24s
Percentage of available AfriNIC address space announced: 22.0
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 1332 11140 287 CHINANET-BACKBONE
4755 1329 382 71 Videsh Sanchar Nigam Ltd. Aut
9583 1125 80 403 Sify Limited
9498 998 533 68 BHARTI BT INTERNET LTD.
4766 794 5440 315 Korea Telecom (KIX)
23577 789 34 686 Korea Telecom (ATM-MPLS)
17488 764 50 47 Hathway IP Over Cable Interne
7545 699 150 115 TPG Internet Pty Ltd
18101 590 118 46 Reliance Infocom Ltd Internet
1221 543 1951 424 Telstra Pty Ltd
4812 543 979 98 China Telecom (Shanghai)
4668 516 68 10 LG-EDS Systems Inc.
17676 503 10919 64 Softbank BB Corp.
4808 476 768 107 CNCGROUP IP network: China169
9443 473 122 77 Primus Telecommunications
4802 425 116 152 Wantree Development
7474 377 216 267 SingTel Optus Pty Ltd
4837 363 4944 165 chinanet IDC center beijing n
9829 363 258 14 BSNL National Internet Backbo
17974 358 130 13 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1475 6076 996 AT&T WorldNet Services
4323 1330 1007 371 Time Warner Telecom
2386 1210 616 745 AT&T Data Communications Serv
11492 1126 109 32 Cable One
6478 1117 322 138 AT&T Worldnet Services
6197 1030 718 509 BellSouth Network Solutions,
18566 1019 288 9 Covad Communications
174 971 6780 861 Cogent Communications
701 940 6563 719 UUNET Technologies, Inc.
7011 912 261 549 Citizens Utilities
20115 798 739 434 Charter Communications
1239 797 2721 565 Sprint
19262 765 2727 184 Verizon Global Networks
22773 754 2148 49 Cox Communications, Inc.
209 729 3835 578 Qwest
5668 628 171 24 CenturyTel Internet Holdings,
6517 584 163 36 Yipes Communications, Inc.
852 580 1096 364 Telus Advanced Communications
855 570 254 73 Canadian Research Network
6198 569 613 259 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2119 506 918 378 Telenor Internet Access
702 503 1922 404 UUNET - Commercial IP service
24863 363 57 40 LINKdotNET AS number
9116 342 168 26 Goldenlines main autonomous s
3301 313 1456 293 TeliaNet Sweden
3320 313 6035 260 Deutsche Telekom AG
6746 288 130 264 Dynamic Network Technologies,
5089 269 1658 54 NTL Group Limited
680 265 2061 256 DFN-IP service G-WiN
8220 261 445 244 COLT Telecommunications
8708 260 420 241 Romania Data Systems S.A.
3215 256 2392 97 France Telecom Transpac
8551 232 228 27 Bezeq International
3352 225 1864 41 Ibernet, Internet Access Netw
3269 221 2775 73 TELECOM ITALIA
9121 210 1441 24 TTnet Autonomous System
3292 195 1379 175 TDC Tele Danmark
12479 193 578 6 Uni2 Autonomous System
3300 192 172 93 AUCS Communications Services
1257 191 1195 169 SWIPnet Swedish IP Network
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 917 1973 205 UniNet S.A. de C.V.
11830 483 299 9 Instituto Costarricense de El
16814 426 26 9 NSS, S.A.
11172 375 115 61 Servicios Alestra S.A de C.V
7303 334 175 42 Telecom Argentina Stet-France
14522 334 28 7 SatNet S.A.
22047 318 246 13 VTR PUNTO NET S.A.
6471 317 75 32 ENTEL CHILE S.A.
14117 281 19 15 Telefonica del Sur S.A.
10481 278 104 9 Prima S.A.
11556 237 128 4 Cable-Wireless Panama
6147 227 178 24 Telefonica Del Peru
10620 217 61 26 TVCABLE BOGOTA
6503 201 171 82 AVANTEL, S.A.
23216 195 16 43 RAMtelecom Telecomunicaciones
8163 177 11 6 METROTEL REDES S.A.
19169 170 12 18 Telconet
21826 163 29 59 INTERCABLE
20299 161 24 20 NEWCOM AMERICAS
7738 160 506 23 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 282 867 223 The Internet Solution
8452 234 188 7 TEDATA
6713 142 135 11 Itissalat Al-MAGHRIB
2018 140 301 115 Tertiary Education Network
33783 126 8 11 EEPAD TISP TELECOM & INTERNET
5536 124 8 10 Internet Egypt Network
33776 99 6 8 Starcomms Nigeria Limited
24835 87 48 6 RAYA Telecom - Egypt
15475 79 84 4 Nile Online
2905 75 174 72 The Internetworking Company o
2561 62 6 2 Egyptian Universities Network
15706 56 12 4 Sudatel Internet Exchange Aut
23889 52 24 15 MAURITIUS TELECOM
5713 46 294 36 Telkom SA Ltd
16637 46 21 29 Johnnic e-Ventures
33774 46 29 24 AS Number for Telecom Algeria
8524 31 2 10 AUCEGYPT Autonomous System
21280 30 4 4 Swift Global Kenya Ltd.Is an
12455 26 6 3 Jambonet Autonomous system
10798 25 2 16 Standard Bank of South Africa
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1329 1258 Videsh Sanchar Nigam Ltd. Aut
11492 1126 1094 Cable One
4134 1332 1045 CHINANET-BACKBONE
18566 1019 1010 Covad Communications
6478 1117 979 AT&T Worldnet Services
4323 1330 959 Time Warner Telecom
9498 998 930 BHARTI BT INTERNET LTD.
9583 1125 722 Sify Limited
17488 764 717 Hathway IP Over Cable Interne
8151 917 712 UniNet S.A. de C.V.
22773 754 705 Cox Communications, Inc.
5668 628 604 CenturyTel Internet Holdings,
7545 699 584 TPG Internet Pty Ltd
19262 765 581 Verizon Global Networks
6517 584 548 Yipes Communications, Inc.
18101 590 544 Reliance Infocom Ltd Internet
15270 567 529 PaeTec.net -a division of Pae
6197 1030 521 BellSouth Network Solutions,
19916 568 517 OLM LLC
4668 516 506 LG-EDS Systems Inc.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
64513 PRIVATE 63.171.234.0/26 1803 SPRINT
64513 PRIVATE 63.171.234.64/26 1803 SPRINT
64513 PRIVATE 63.171.234.128/26 1803 SPRINT
64513 PRIVATE 63.171.234.192/26 1803 SPRINT
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
7.1.1.0/24 1239 Sprint
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
172.33.1.0/24 7018 AT&T WorldNet Services
192.0.10.0/24 9498 BHARTI BT INTERNET LTD.
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
192.153.136.0/21 721 DLA Systems Automation Center
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 /10:15 /11:36 /12:134
/13:257 /14:470 /15:920 /16:9597 /17:4053 /18:6571
/19:13876 /20:16158 /21:14804 /22:19111 /23:20067 /24:120619
/25:778 /26:1029 /27:504 /28:80 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1118 1126 Cable One
6478 1116 1117 AT&T Worldnet Services
18566 1001 1019 Covad Communications
9583 967 1125 Sify Limited
2386 904 1210 AT&T Data Communications Serv
7018 814 1475 AT&T WorldNet Services
7011 809 912 Citizens Utilities
6197 783 1030 BellSouth Network Solutions,
23577 780 789 Korea Telecom (ATM-MPLS)
4755 714 1329 Videsh Sanchar Nigam Ltd. Aut
9498 667 998 BHARTI BT INTERNET LTD.
4766 594 794 Korea Telecom (KIX)
17488 587 764 Hathway IP Over Cable Interne
19916 563 568 OLM LLC
4323 561 1330 Time Warner Telecom
6517 548 584 Yipes Communications, Inc.
15270 531 567 PaeTec.net -a division of Pae
4668 506 516 LG-EDS Systems Inc.
18101 499 590 Reliance Infocom Ltd Internet
5668 493 628 CenturyTel Internet Holdings,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:88 12:1793 13:1 15:19
16:3 17:3 18:13 20:37 24:954 25:1
32:56 33:3 38:346 40:60 41:308 44:2
47:4 52:4 55:3 56:3 57:24 58:471
59:386 60:360 61:1005 62:937 63:1999 64:3184
65:2363 66:3402 67:765 68:646 69:1938 70:442
71:105 72:1377 73:2 74:625 75:258 76:124
77:287 78:37 80:832 81:832 82:651 83:380
84:593 85:853 86:341 87:485 88:285 89:965
90:22 91:484 97:5 116:279 117:135 121:262
122:596 123:155 124:847 125:981 126:1 128:273
129:214 130:140 131:362 132:56 133:9 134:198
135:34 136:184 137:81 138:149 139:71 140:490
141:172 142:379 143:256 144:303 145:46 146:326
147:123 148:409 149:143 150:111 151:159 152:88
153:122 154:3 155:263 156:161 157:214 158:158
159:170 160:111 161:96 162:186 163:180 164:478
165:391 166:275 167:294 168:509 169:121 170:394
171:22 172:2 189:69 190:983 192:5742 193:3974
194:3178 195:2270 196:979 198:3807 199:3274 200:5109
201:1160 202:7373 203:7639 204:3950 205:1976 206:2409
207:2807 208:2775 209:3463 210:2443 211:986 212:1337
213:1470 214:419 215:41 216:4004 217:1181 218:359
219:381 220:1022 221:416 222:266
End of report
