[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 14 Aug, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/08/14/0400
Analysis Summary
----------------
BGP routing table entries examined: 228181
Prefixes after maximum aggregation: 119607
Deaggregation factor: 1.91
Unique aggregates announced to Internet: 110921
Total ASes present in the Internet Routing Table: 25947
Prefixes per ASN: 8.79
Origin-only ASes present in the Internet Routing Table: 22601
Origin ASes announcing only one prefix: 11044
Transit ASes present in the Internet Routing Table: 3346
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: 7
Unregistered ASNs in the Routing Table: 3
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: 1749801952
Equivalent to 104 /8s, 75 /16s and 219 /24s
Percentage of available address space announced: 47.2
Percentage of allocated address space announced: 61.8
Percentage of available address space allocated: 76.4
Total number of prefixes smaller than registry allocations: 120570
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 53391
Total APNIC prefixes after maximum aggregation: 20824
APNIC Deaggregation factor: 2.56
Prefixes being announced from the APNIC address blocks: 50332
Unique aggregates announced from the APNIC address blocks: 22123
APNIC Region origin ASes present in the Internet Routing Table: 3035
APNIC Prefixes per ASN: 16.58
APNIC Region origin ASes announcing only one prefix: 823
APNIC Region transit ASes present in the Internet Routing Table: 463
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 311298464
Equivalent to 18 /8s, 142 /16s and 9 /24s
Percentage of available APNIC address space announced: 77.1
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: 107864
Total ARIN prefixes after maximum aggregation: 62617
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 79422
Unique aggregates announced from the ARIN address blocks: 31838
ARIN Region origin ASes present in the Internet Routing Table: 11743
ARIN Prefixes per ASN: 6.76
ARIN Region origin ASes announcing only one prefix: 4526
ARIN Region transit ASes present in the Internet Routing Table: 1072
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 341960448
Equivalent to 20 /8s, 97 /16s and 231 /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: 48068
Total RIPE prefixes after maximum aggregation: 30742
RIPE Deaggregation factor: 1.56
Prefixes being announced from the RIPE address blocks: 44430
Unique aggregates announced from the RIPE address blocks: 29180
RIPE Region origin ASes present in the Internet Routing Table: 10045
RIPE Prefixes per ASN: 4.42
RIPE Region origin ASes announcing only one prefix: 5354
RIPE Region transit ASes present in the Internet Routing Table: 1601
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 323798656
Equivalent to 19 /8s, 76 /16s and 198 /24s
Percentage of available RIPE address space announced: 74.2
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: 16141
Total LACNIC prefixes after maximum aggregation: 4372
LACNIC Deaggregation factor: 3.69
Prefixes being announced from the LACNIC address blocks: 14212
Unique aggregates announced from the LACNIC address blocks: 7659
LACNIC Region origin ASes present in the Internet Routing Table: 844
LACNIC Prefixes per ASN: 16.84
LACNIC Region origin ASes announcing only one prefix: 275
LACNIC Region transit ASes present in the Internet Routing Table: 143
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 41875456
Equivalent to 2 /8s, 126 /16s and 248 /24s
Percentage of available LACNIC address space announced: 62.4
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: 2707
Total AfriNIC prefixes after maximum aggregation: 1042
AfriNIC Deaggregation factor: 2.60
Prefixes being announced from the AfriNIC address blocks: 2233
Unique aggregates announced from the AfriNIC address blocks: 1360
AfriNIC Region origin ASes present in the Internet Routing Table: 204
AfriNIC Prefixes per ASN: 10.95
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: 3.8
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 6402048
Equivalent to 0 /8s, 97 /16s and 176 /24s
Percentage of available AfriNIC address space announced: 19.1
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 1330 11142 288 CHINANET-BACKBONE
4755 1320 382 71 Videsh Sanchar Nigam Ltd. Aut
9583 1124 80 402 Sify Limited
9498 994 532 69 BHARTI BT INTERNET LTD.
4766 798 5440 315 Korea Telecom (KIX)
23577 790 34 686 Korea Telecom (ATM-MPLS)
17488 742 48 59 Hathway IP Over Cable Interne
7545 700 150 115 TPG Internet Pty Ltd
18101 586 118 44 Reliance Infocom Ltd Internet
1221 549 1951 427 Telstra Pty Ltd
4812 537 931 96 China Telecom (Shanghai)
4668 512 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
4808 476 768 107 CNCGROUP IP network: China169
9443 473 122 77 Primus Telecommunications
4802 419 112 152 Wantree Development
7474 396 217 270 SingTel Optus Pty Ltd
9829 363 258 14 BSNL National Internet Backbo
4837 354 4944 165 chinanet IDC center beijing n
17557 349 53 174 Pakistan Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1468 6074 985 AT&T WorldNet Services
4323 1329 1022 372 Time Warner Telecom
2386 1201 614 738 AT&T Data Communications Serv
11492 1119 109 35 Cable One
6478 1115 322 132 AT&T Worldnet Services
6197 1028 718 511 BellSouth Network Solutions,
18566 1019 288 9 Covad Communications
174 967 6777 857 Cogent Communications
701 940 6562 718 UUNET Technologies, Inc.
7011 905 259 544 Citizens Utilities
20115 807 742 431 Charter Communications
1239 804 2725 571 Sprint
19262 763 2721 182 Verizon Global Networks
22773 754 2148 49 Cox Communications, Inc.
209 742 3853 587 Qwest
5668 627 171 24 CenturyTel Internet Holdings,
6517 576 161 37 Yipes Communications, Inc.
852 575 1093 366 Telus Advanced Communications
855 575 254 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 512 1075 138 Telenor Internet Access
702 501 1920 402 UUNET - Commercial IP service
24863 362 57 41 LINKdotNET AS number
9116 347 168 26 Goldenlines main autonomous s
3301 313 1456 293 TeliaNet Sweden
3320 312 6035 259 Deutsche Telekom AG
6746 287 130 263 Dynamic Network Technologies,
5089 269 1658 54 NTL Group Limited
680 266 2061 257 DFN-IP service G-WiN
8220 261 446 244 COLT Telecommunications
8708 261 420 242 Romania Data Systems S.A.
3215 256 2392 97 France Telecom Transpac
8551 232 228 27 Bezeq International
3352 224 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
1257 194 1195 172 SWIPnet Swedish IP Network
12479 193 578 6 Uni2 Autonomous System
3300 189 171 90 AUCS Communications Services
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 914 1957 210 UniNet S.A. de C.V.
11830 483 299 9 Instituto Costarricense de El
16814 426 26 9 NSS, S.A.
11172 374 115 61 Servicios Alestra S.A de C.V
7303 334 174 40 Telecom Argentina Stet-France
14522 334 28 7 SatNet S.A.
22047 318 246 13 VTR PUNTO NET S.A.
6471 316 75 32 ENTEL CHILE S.A.
14117 281 19 15 Telefonica del Sur S.A.
10481 261 104 9 Prima S.A.
11556 229 128 3 Cable-Wireless Panama
6147 226 176 27 Telefonica Del Peru
10620 217 61 26 TVCABLE BOGOTA
6503 201 171 83 AVANTEL, S.A.
23216 195 16 43 RAMtelecom Telecomunicaciones
8163 177 11 6 METROTEL REDES S.A.
19169 170 15 20 Telconet
20299 163 24 21 NEWCOM AMERICAS
21826 162 28 61 INTERCABLE
7738 159 506 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 229 188 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 78 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
33774 46 29 24 AS Number for Telecom Algeria
16637 42 21 29 Johnnic e-Ventures
8524 31 2 10 AUCEGYPT Autonomous System
12455 30 6 3 Jambonet Autonomous system
21280 30 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 1320 1249 Videsh Sanchar Nigam Ltd. Aut
11492 1119 1084 Cable One
4134 1330 1042 CHINANET-BACKBONE
18566 1019 1010 Covad Communications
6478 1115 983 AT&T Worldnet Services
4323 1329 957 Time Warner Telecom
9498 994 925 BHARTI BT INTERNET LTD.
9583 1124 722 Sify Limited
22773 754 705 Cox Communications, Inc.
8151 914 704 UniNet S.A. de C.V.
17488 742 683 Hathway IP Over Cable Interne
5668 627 603 CenturyTel Internet Holdings,
7545 700 585 TPG Internet Pty Ltd
19262 763 581 Verizon Global Networks
18101 586 542 Reliance Infocom Ltd Internet
6517 576 539 Yipes Communications, Inc.
15270 568 530 PaeTec.net -a division of Pae
6197 1028 517 BellSouth Network Solutions,
19916 568 517 OLM LLC
855 575 502 Canadian Research Network
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
38347 UNALLOCATED 116.212.160.0/21 9389 BEIJING SHENZHOU GRE
38347 UNALLOCATED 116.212.168.0/21 9389 BEIJING SHENZHOU GRE
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 /12:133
/13:257 /14:471 /15:913 /16:9576 /17:4046 /18:6548
/19:13870 /20:16154 /21:14707 /22:19081 /23:19995 /24:119953
/25:777 /26:1030 /27:500 /28:79 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1114 1115 AT&T Worldnet Services
11492 1111 1119 Cable One
18566 1001 1019 Covad Communications
9583 966 1124 Sify Limited
2386 895 1201 AT&T Data Communications Serv
7018 806 1468 AT&T WorldNet Services
7011 803 905 Citizens Utilities
6197 781 1028 BellSouth Network Solutions,
23577 781 790 Korea Telecom (ATM-MPLS)
4755 708 1320 Videsh Sanchar Nigam Ltd. Aut
9498 663 994 BHARTI BT INTERNET LTD.
4766 595 798 Korea Telecom (KIX)
17488 565 742 Hathway IP Over Cable Interne
19916 563 568 OLM LLC
4323 559 1329 Time Warner Telecom
6517 541 576 Yipes Communications, Inc.
15270 532 568 PaeTec.net -a division of Pae
4668 502 512 LG-EDS Systems Inc.
18101 496 586 Reliance Infocom Ltd Internet
5668 493 627 CenturyTel Internet Holdings,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:86 12:1793 15:19 16:3
17:3 18:12 20:37 24:935 25:1 32:57
33:3 38:344 40:60 41:297 44:2 47:4
52:4 55:3 56:3 57:25 58:466 59:385
60:343 61:991 62:932 63:1992 64:3140 65:2340
66:3331 67:756 68:623 69:1939 70:444 71:104
72:1378 73:2 74:614 75:256 76:99 77:279
78:33 80:832 81:829 82:665 83:370 84:598
85:849 86:334 87:477 88:284 89:952 90:22
91:455 97:6 116:271 117:116 121:258 122:572
123:152 124:840 125:971 128:291 129:210 130:140
131:361 132:55 133:9 134:198 135:34 136:188
137:80 138:149 139:71 140:495 141:172 142:378
143:254 144:298 145:46 146:324 147:120 148:408
149:142 150:109 151:159 152:88 153:122 154:3
155:260 156:156 157:210 158:157 159:176 160:108
161:94 162:185 163:178 164:470 165:393 166:271
167:295 168:507 169:121 170:391 171:22 172:2
189:68 190:928 192:5749 193:3968 194:3175 195:2269
196:975 198:3807 199:3264 200:5071 201:1150 202:7394
203:7599 204:3935 205:1969 206:2414 207:2811 208:2763
209:3514 210:2437 211:982 212:1317 213:1473 214:417
215:40 216:3976 217:1161 218:351 219:383 220:1017
221:414 222:262
End of report
