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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 06 Jul, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/07/06/0400
Analysis Summary
----------------
BGP routing table entries examined: 224789
Prefixes after maximum aggregation: 118408
Deaggregation factor: 1.90
Unique aggregates announced to Internet: 109211
Total ASes present in the Internet Routing Table: 25603
Prefixes per ASN: 8.78
Origin-only ASes present in the Internet Routing Table: 22303
Origin ASes announcing only one prefix: 10834
Transit ASes present in the Internet Routing Table: 3300
Transit-only ASes present in the Internet Routing Table: 72
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: 6
Unregistered ASNs in the Routing Table: 8
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: 1732502112
Equivalent to 103 /8s, 67 /16s and 226 /24s
Percentage of available address space announced: 46.7
Percentage of allocated address space announced: 61.9
Percentage of available address space allocated: 75.5
Total number of prefixes smaller than registry allocations: 118078
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 52729
Total APNIC prefixes after maximum aggregation: 20535
APNIC Deaggregation factor: 2.57
Prefixes being announced from the APNIC address blocks: 49628
Unique aggregates announced from the APNIC address blocks: 21832
APNIC Region origin ASes present in the Internet Routing Table: 3001
APNIC Prefixes per ASN: 16.54
APNIC Region origin ASes announcing only one prefix: 803
APNIC Region transit ASes present in the Internet Routing Table: 456
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 301798560
Equivalent to 17 /8s, 253 /16s and 20 /24s
Percentage of available APNIC address space announced: 74.8
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: 107093
Total ARIN prefixes after maximum aggregation: 62234
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 78726
Unique aggregates announced from the ARIN address blocks: 31046
ARIN Region origin ASes present in the Internet Routing Table: 11667
ARIN Prefixes per ASN: 6.75
ARIN Region origin ASes announcing only one prefix: 4491
ARIN Region transit ASes present in the Internet Routing Table: 1064
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 338531648
Equivalent to 20 /8s, 45 /16s and 149 /24s
Percentage of available ARIN address space announced: 74.7
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: 47082
Total RIPE prefixes after maximum aggregation: 30356
RIPE Deaggregation factor: 1.55
Prefixes being announced from the RIPE address blocks: 43469
Unique aggregates announced from the RIPE address blocks: 28789
RIPE Region origin ASes present in the Internet Routing Table: 9850
RIPE Prefixes per ASN: 4.41
RIPE Region origin ASes announcing only one prefix: 5216
RIPE Region transit ASes present in the Internet Routing Table: 1568
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 321115968
Equivalent to 19 /8s, 35 /16s and 215 /24s
Percentage of available RIPE address space announced: 79.8
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, 80/5, 88/6, 92/7, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 15357
Total LACNIC prefixes after maximum aggregation: 4263
LACNIC Deaggregation factor: 3.60
Prefixes being announced from the LACNIC address blocks: 13411
Unique aggregates announced from the LACNIC address blocks: 7589
LACNIC Region origin ASes present in the Internet Routing Table: 819
LACNIC Prefixes per ASN: 16.37
LACNIC Region origin ASes announcing only one prefix: 263
LACNIC Region transit ASes present in the Internet Routing Table: 144
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 40227840
Equivalent to 2 /8s, 101 /16s and 212 /24s
Percentage of available LACNIC address space announced: 59.9
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: 2518
Total AfriNIC prefixes after maximum aggregation: 1010
AfriNIC Deaggregation factor: 2.49
Prefixes being announced from the AfriNIC address blocks: 2017
Unique aggregates announced from the AfriNIC address blocks: 1249
AfriNIC Region origin ASes present in the Internet Routing Table: 193
AfriNIC Prefixes per ASN: 10.45
AfriNIC Region origin ASes announcing only one prefix: 61
AfriNIC Region transit ASes present in the Internet Routing Table: 35
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 6273792
Equivalent to 0 /8s, 95 /16s and 187 /24s
Percentage of available AfriNIC address space announced: 18.7
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 1347 10205 281 CHINANET-BACKBONE
4755 1254 382 72 Videsh Sanchar Nigam Ltd. Aut
9583 1111 79 396 Sify Limited
9498 984 469 66 BHARTI BT INTERNET LTD.
23577 804 34 696 Korea Telecom (ATM-MPLS)
4766 792 4927 314 Korea Telecom (KIX)
17488 711 46 53 Hathway IP Over Cable Interne
7545 689 152 116 TPG Internet Pty Ltd
18101 563 117 36 Reliance Infocom Ltd Internet
1221 543 1950 425 Telstra Pty Ltd
4812 518 904 92 China Telecom (Shanghai)
4668 508 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
9443 470 122 77 Primus Telecommunications
4802 411 105 151 Wantree Development
7474 409 218 269 SingTel Optus Pty Ltd
17974 371 130 13 PT TELEKOMUNIKASI INDONESIA
2907 362 1701 302 SINET Japan
9829 362 258 14 BSNL National Internet Backbo
17557 350 41 170 Pakistan Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1454 6073 984 AT&T WorldNet Services
4323 1320 1038 369 Time Warner Telecom
2386 1212 615 753 AT&T Data Communications Serv
6478 1127 368 154 AT&T Worldnet Services
11492 1095 107 24 Cable One
6197 1027 717 509 BellSouth Network Solutions,
18566 1011 288 9 Covad Communications
174 965 6778 864 Cogent Communications
701 945 6597 720 UUNET Technologies, Inc.
7011 850 252 538 Citizens Utilities
1239 813 2734 581 Sprint
20115 798 728 424 Charter Communications
19262 778 2724 201 Verizon Global Networks
209 750 3859 582 Qwest
22773 729 1892 44 Cox Communications, Inc.
5668 614 169 21 CenturyTel Internet Holdings,
7029 614 488 79 Alltel Information Services,
852 578 1089 362 Telus Advanced Communications
855 575 254 73 Canadian Research Network
6198 567 613 260 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2119 514 1075 136 Telenor Internet Access
702 504 1930 403 UUNET - Commercial IP service
24863 356 56 37 LINKdotNET AS number
3301 310 1455 290 TeliaNet Sweden
3320 310 6034 257 Deutsche Telekom AG
6746 280 129 256 Dynamic Network Technologies,
5089 267 1658 52 NTL Group Limited
680 263 2044 255 DFN-IP service G-WiN
9116 260 136 25 Goldenlines main autonomous s
3215 255 2376 96 France Telecom Transpac
8708 250 420 239 Romania Data Systems S.A.
8220 248 444 240 COLT Telecommunications
8551 223 213 28 Bezeq International
3269 222 2775 74 TELECOM ITALIA
3352 219 1864 41 Ibernet, Internet Access Netw
9121 211 1441 24 TTnet Autonomous System
1257 195 1196 173 SWIPnet Swedish IP Network
3246 194 328 184 Song Networks
12479 191 578 6 Uni2 Autonomous System
3300 185 172 91 AUCS Communications Services
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 856 1917 208 UniNet S.A. de C.V.
11830 483 299 9 Instituto Costarricense de El
11172 373 116 63 Servicios Alestra S.A de C.V
16814 361 22 8 NSS, S.A.
22047 313 238 12 VTR PUNTO NET S.A.
7303 300 145 32 Telecom Argentina Stet-France
14117 279 19 15 Telefonica del Sur S.A.
6471 278 74 33 ENTEL CHILE S.A.
11556 231 128 4 Cable-Wireless Panama
6147 225 172 27 Telefonica Del Peru
6503 210 188 84 AVANTEL, S.A.
10620 207 59 14 TVCABLE BOGOTA
23216 195 16 43 RAMtelecom Telecomunicaciones
10481 181 72 8 Prima S.A.
14522 175 28 7 SatNet S.A.
8163 173 11 7 METROTEL REDES S.A.
7738 156 506 23 Telecomunicacoes da Bahia S.A
21826 156 27 59 INTERCABLE
7910 155 11 30 ANDINET ON LINE
19169 153 10 31 Telconet
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 278 867 220 The Internet Solution
8452 209 188 7 TEDATA
6713 142 135 11 Itissalat Al-MAGHRIB
2018 136 301 111 Tertiary Education Network
33783 124 8 12 EEPAD TISP TELECOM & INTERNET
5536 123 8 15 Internet Egypt Network
24835 86 48 6 RAYA Telecom - Egypt
2905 77 174 73 The Internetworking Company o
15475 76 84 4 Nile Online
2561 62 6 2 Egyptian Universities Network
15706 56 12 4 Sudatel Internet Exchange Aut
23889 49 16 14 MAURITIUS TELECOM
5713 45 294 35 Telkom SA Ltd
33774 43 29 24 AS Number for Telecom Algeria
16637 37 21 29 Johnnic e-Ventures
33776 36 2 2 Starcomms Nigeria Limited
8524 32 2 8 AUCEGYPT Autonomous System
12455 32 6 3 Jambonet Autonomous system
21280 28 4 4 Swift Global Kenya Ltd.Is an
10798 24 2 15 Standard Bank of South Africa
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1254 1182 Videsh Sanchar Nigam Ltd. Aut
11492 1095 1071 Cable One
4134 1347 1066 CHINANET-BACKBONE
18566 1011 1002 Covad Communications
6478 1127 973 AT&T Worldnet Services
4323 1320 951 Time Warner Telecom
9498 984 918 BHARTI BT INTERNET LTD.
9583 1111 715 Sify Limited
22773 729 685 Cox Communications, Inc.
17488 711 658 Hathway IP Over Cable Interne
8151 856 648 UniNet S.A. de C.V.
5668 614 593 CenturyTel Internet Holdings,
19262 778 577 Verizon Global Networks
7545 689 573 TPG Internet Pty Ltd
7029 614 535 Alltel Information Services,
18101 563 527 Reliance Infocom Ltd Internet
6517 561 525 Yipes Communications, Inc.
6197 1027 518 BellSouth Network Solutions,
15270 555 517 PaeTec.net -a division of Pae
855 575 502 Canadian Research Network
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65332 PRIVATE 63.166.106.192/27 1803 SPRINT
65502 PRIVATE 63.220.13.0/24 19316 Spectrum Access, Inc
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
65502 PRIVATE 206.161.9.0/24 19316 Spectrum Access, Inc
65502 PRIVATE 207.226.249.0/24 19316 Spectrum Access, Inc
22895 UNALLOCATED 216.174.38.0/24 19094 Adelphia Business So
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 /12:127
/13:252 /14:465 /15:898 /16:9540 /17:3988 /18:6492
/19:13695 /20:15944 /21:14282 /22:18711 /23:19624 /24:118319
/25:784 /26:993 /27:482 /28:78 /29:10 /30:14
/31:0 /32:13
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1117 1127 AT&T Worldnet Services
11492 1086 1095 Cable One
18566 993 1011 Covad Communications
9583 953 1111 Sify Limited
2386 904 1212 AT&T Data Communications Serv
23577 795 804 Korea Telecom (ATM-MPLS)
7018 793 1454 AT&T WorldNet Services
6197 780 1027 BellSouth Network Solutions,
7011 749 850 Citizens Utilities
9498 655 984 BHARTI BT INTERNET LTD.
4755 652 1254 Videsh Sanchar Nigam Ltd. Aut
4766 599 792 Korea Telecom (KIX)
4323 553 1320 Time Warner Telecom
19916 537 542 OLM LLC
17488 534 711 Hathway IP Over Cable Interne
6517 527 561 Yipes Communications, Inc.
15270 519 555 PaeTec.net -a division of Pae
4668 498 508 LG-EDS Systems Inc.
5668 479 614 CenturyTel Internet Holdings,
18101 478 563 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:84 9:1 12:1806 15:19
16:3 17:3 18:11 20:38 24:938 25:1
32:50 33:3 38:332 40:61 41:174 44:2
47:4 52:4 55:3 56:3 57:25 58:425
59:386 60:318 61:987 62:871 63:1965 64:3120
65:2326 66:3300 67:746 68:627 69:1896 70:433
71:106 72:1335 73:2 74:561 75:265 76:73
77:265 78:18 80:829 81:813 82:672 83:382
84:476 85:852 86:344 87:449 88:283 89:887
90:7 91:403 97:6 98:4 116:244 117:45
121:218 122:566 123:122 124:836 125:946 128:291
129:224 130:139 131:366 132:54 133:9 134:194
135:38 136:183 137:82 138:149 139:73 140:484
141:173 142:374 143:246 144:297 145:42 146:325
147:119 148:396 149:145 150:113 151:160 152:92
153:126 154:4 155:254 156:152 157:212 158:157
159:158 160:105 161:92 162:221 163:180 164:445
165:414 166:294 167:283 168:503 169:120 170:407
171:18 172:1 189:64 190:708 192:5761 193:3893
194:3159 195:2246 196:922 198:3807 199:3269 200:4901
201:1093 202:7378 203:7590 204:3957 205:2024 206:2415
207:2821 208:2707 209:3497 210:2463 211:968 212:1301
213:1466 214:412 215:41 216:4009 217:1152 218:359
219:382 220:980 221:413 222:264
End of report
