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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 04 May, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/05/04/0400
Analysis Summary
----------------
BGP routing table entries examined: 219582
Prefixes after maximum aggregation: 116840
Deaggregation factor: 1.88
Unique aggregates announced to Internet: 106524
Total ASes present in the Internet Routing Table: 25077
Prefixes per ASN: 8.76
Origin-only ASes present in the Internet Routing Table: 21841
Origin ASes announcing only one prefix: 10569
Transit ASes present in the Internet Routing Table: 3236
Transit-only ASes present in the Internet Routing Table: 78
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 21
Max AS path prepend of ASN (20858) 18
Prefixes from unregistered ASNs in the Routing Table: 7
Unregistered ASNs in the Routing Table: 9
Prefixes from 32-bit 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: 1715214784
Equivalent to 102 /8s, 60 /16s and 25 /24s
Percentage of available address space announced: 46.3
Percentage of allocated address space announced: 62.8
Percentage of available address space allocated: 73.7
Total number of prefixes smaller than registry allocations: 114926
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 50571
Total APNIC prefixes after maximum aggregation: 20203
APNIC Deaggregation factor: 2.50
Prefixes being announced from the APNIC address blocks: 47561
Unique aggregates announced from the APNIC address blocks: 21197
APNIC Region origin ASes present in the Internet Routing Table: 2934
APNIC Prefixes per ASN: 16.21
APNIC Region origin ASes announcing only one prefix: 790
APNIC Region transit ASes present in the Internet Routing Table: 436
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 292652992
Equivalent to 17 /8s, 113 /16s and 135 /24s
Percentage of available APNIC address space announced: 72.5
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: 106041
Total ARIN prefixes after maximum aggregation: 61903
ARIN Deaggregation factor: 1.71
Prefixes being announced from the ARIN address blocks: 78048
Unique aggregates announced from the ARIN address blocks: 30425
ARIN Region origin ASes present in the Internet Routing Table: 11536
ARIN Prefixes per ASN: 6.77
ARIN Region origin ASes announcing only one prefix: 4428
ARIN Region transit ASes present in the Internet Routing Table: 1055
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 330984064
Equivalent to 19 /8s, 186 /16s and 106 /24s
Percentage of available ARIN address space announced: 73.1
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: 45455
Total RIPE prefixes after maximum aggregation: 29615
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 42031
Unique aggregates announced from the RIPE address blocks: 27989
RIPE Region origin ASes present in the Internet Routing Table: 9558
RIPE Prefixes per ASN: 4.40
RIPE Region origin ASes announcing only one prefix: 5043
RIPE Region transit ASes present in the Internet Routing Table: 1535
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 304852608
Equivalent to 18 /8s, 43 /16s and 174 /24s
Percentage of available RIPE address space announced: 75.7
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: 14926
Total LACNIC prefixes after maximum aggregation: 4108
LACNIC Deaggregation factor: 3.63
Prefixes being announced from the LACNIC address blocks: 13016
Unique aggregates announced from the LACNIC address blocks: 7162
LACNIC Region origin ASes present in the Internet Routing Table: 785
LACNIC Prefixes per ASN: 16.58
LACNIC Region origin ASes announcing only one prefix: 253
LACNIC Region transit ASes present in the Internet Routing Table: 141
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 17
Number of LACNIC addresses announced to Internet: 38423552
Equivalent to 2 /8s, 74 /16s and 76 /24s
Percentage of available LACNIC address space announced: 57.3
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: 2579
Total AfriNIC prefixes after maximum aggregation: 1003
AfriNIC Deaggregation factor: 2.57
Prefixes being announced from the AfriNIC address blocks: 1954
Unique aggregates announced from the AfriNIC address blocks: 1190
AfriNIC Region origin ASes present in the Internet Routing Table: 185
AfriNIC Prefixes per ASN: 10.56
AfriNIC Region origin ASes announcing only one prefix: 55
AfriNIC Region transit ASes present in the Internet Routing Table: 37
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 6060800
Equivalent to 0 /8s, 92 /16s and 123 /24s
Percentage of available AfriNIC address space announced: 18.1
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 1282 9603 274 CHINANET-BACKBONE
4755 1205 383 72 Videsh Sanchar Nigam Ltd. Aut
9583 1111 79 381 Sify Limited
9498 974 469 73 BHARTI BT INTERNET LTD.
4766 784 4943 312 Korea Telecom (KIX)
23577 776 35 705 Korea Telecom (ATM-MPLS)
17488 672 44 34 Hathway IP Over Cable Interne
7545 628 142 81 TPG Internet Pty Ltd
1221 542 1954 420 Telstra Pty Ltd
18101 534 116 28 Reliance Infocom Ltd Internet
4668 507 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
4812 465 799 75 China Telecom (Shanghai)
9443 456 115 74 Primus Telecommunications
7474 410 217 268 SingTel Optus Pty Ltd
17557 359 35 170 Pakistan Telecom
4802 358 86 147 Wantree Development
9829 357 274 13 BSNL National Internet Backbo
4837 346 4725 160 chinanet IDC center beijing n
17974 339 129 12 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1496 6134 987 AT&T WorldNet Services
4323 1263 1022 360 Time Warner Telecom
2386 1136 580 754 AT&T Data Communications Serv
6478 1092 337 132 AT&T Worldnet Services
11492 1049 103 20 Cable One
6197 1034 688 503 BellSouth Network Solutions,
18566 1001 288 9 Covad Communications
701 958 6663 731 UUNET Technologies, Inc.
174 948 6791 865 Cogent Communications
20115 824 738 431 Charter Communications
1239 819 2717 580 Sprint
7011 789 226 470 Citizens Utilities
19262 765 2595 205 Verizon Global Networks
209 729 3734 584 Qwest
22773 709 1872 42 Cox Communications, Inc.
721 601 21739 270 DLA Systems Automation Center
5668 596 160 17 CenturyTel Internet Holdings,
852 593 1096 374 Telus Advanced Communications
7029 577 456 81 Alltel Information Services,
6198 568 583 264 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 521 1941 415 UUNET - Commercial IP service
24863 344 47 30 LINKdotNET AS number
3352 341 1799 33 Ibernet, Internet Access Netw
3301 309 1455 289 TeliaNet Sweden
3320 302 4993 250 Deutsche Telekom AG
6746 275 128 252 Dynamic Network Technologies,
8220 259 461 250 COLT Telecommunications
680 257 2044 250 DFN-IP service G-WiN
3215 240 2256 92 France Telecom Transpac
8708 236 287 229 Romania Data Systems S.A.
3269 215 2583 73 TELECOM ITALIA
3246 207 340 197 Song Networks
8551 206 196 30 Bezeq International
30890 205 17 95 SC Kappa Invexim SRL
20858 196 34 4 EgyNet
1257 190 1180 168 SWIPnet Swedish IP Network
9116 189 134 24 Goldenlines main autonomous s
3300 185 171 90 AUCS Communications Services
12479 185 578 6 Uni2 Autonomous System
786 177 1795 177 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1182 1869 210 UniNet S.A. de C.V.
11830 483 299 19 Instituto Costarricense de El
11172 363 116 63 Servicios Alestra S.A de C.V
16814 362 22 8 NSS, S.A.
22047 311 238 12 VTR PUNTO NET S.A.
7303 273 143 30 Telecom Argentina Stet-France
6471 259 74 31 ENTEL CHILE S.A.
14117 242 17 14 Telefonica del Sur S.A.
11556 235 128 3 Cable-Wireless Panama
6147 221 166 25 Telefonica Del Peru
6503 215 172 86 AVANTEL, S.A.
20299 192 23 14 NEWCOM AMERICAS
10620 185 53 23 TVCABLE BOGOTA
10481 181 72 8 Prima S.A.
23216 157 19 42 RAMtelecom Telecomunicaciones
21826 155 27 59 INTERCABLE
7910 154 11 29 ANDINET ON LINE
19429 150 92 40 E.T.B.
14522 146 22 5 SatNet S.A.
19169 143 9 26 Telconet
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 291 868 232 The Internet Solution
8452 229 188 7 TEDATA
6713 143 135 11 Itissalat Al-MAGHRIB
2018 137 309 112 Tertiary Education Network
15475 129 84 4 Nile Online
5536 123 8 15 Internet Egypt Network
33783 118 8 10 EEPAD TISP TELECOM & INTERNET
24835 85 48 6 RAYA Telecom - Egypt
2905 81 174 73 The Internetworking Company o
2561 61 6 2 Egyptian Universities Network
15706 51 12 4 Sudatel Internet Exchange Aut
23889 49 16 13 MAURITIUS TELECOM
5713 44 294 34 Telkom SA Ltd
33774 43 13 24 AS Number for Telecom Algeria
16637 33 21 25 Johnnic e-Ventures
33776 31 2 6 Starcomms Nigeria Limited
8524 30 2 6 AUCEGYPT Autonomous System
21280 29 4 4 Swift Global Kenya Ltd.Is an
33766 29 2 1 Nyala Communications Pty Ltd
12455 25 6 3 Jambonet Autonomous system
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1205 1133 Videsh Sanchar Nigam Ltd. Aut
11492 1049 1029 Cable One
4134 1282 1008 CHINANET-BACKBONE
18566 1001 992 Covad Communications
8151 1182 972 UniNet S.A. de C.V.
6478 1092 960 AT&T Worldnet Services
4323 1263 903 Time Warner Telecom
9498 974 901 BHARTI BT INTERNET LTD.
9583 1111 730 Sify Limited
22773 709 667 Cox Communications, Inc.
17488 672 638 Hathway IP Over Cable Interne
5668 596 579 CenturyTel Internet Holdings,
19262 765 560 Verizon Global Networks
7545 628 547 TPG Internet Pty Ltd
6197 1034 531 BellSouth Network Solutions,
19916 568 517 OLM LLC
18101 534 506 Reliance Infocom Ltd Internet
4668 507 497 LG-EDS Systems Inc.
7029 577 496 Alltel Information Services,
855 567 496 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
65242 PRIVATE 64.222.142.0/24 13674 Bell Atlantic Global
64858 PRIVATE 84.36.180.0/24 20858 EgyNet
64982 PRIVATE 89.207.224.0/24 36385 Google Incorporated
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
65534 PRIVATE 203.222.150.0/24 4817 Techex Primary Netbl
22895 UNALLOCATED 216.174.38.0/24 19094 Adelphia Business So
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
2.0.0.0/24 41856 Flagmanskaya Sluzhba Svyazi
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 /8:19 /9:9 /10:13 /11:34 /12:122
/13:238 /14:450 /15:862 /16:9381 /17:3844 /18:6362
/19:13458 /20:15293 /21:13839 /22:17881 /23:19189 /24:116454
/25:755 /26:819 /27:486 /28:59 /29:6 /30:1
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1083 1092 AT&T Worldnet Services
11492 1035 1049 Cable One
18566 983 1001 Covad Communications
9583 949 1111 Sify Limited
2386 831 1136 AT&T Data Communications Serv
7018 809 1496 AT&T WorldNet Services
6197 795 1034 BellSouth Network Solutions,
23577 762 776 Korea Telecom (ATM-MPLS)
7011 692 789 Citizens Utilities
9498 638 974 BHARTI BT INTERNET LTD.
4755 600 1205 Videsh Sanchar Nigam Ltd. Aut
4766 590 784 Korea Telecom (KIX)
19916 563 568 OLM LLC
8151 560 1182 UniNet S.A. de C.V.
4323 522 1263 Time Warner Telecom
4668 496 507 LG-EDS Systems Inc.
15270 495 528 PaeTec.net -a division of Pae
17488 493 672 Hathway IP Over Cable Interne
855 465 567 Canadian Research Network
5668 461 596 CenturyTel Internet Holdings,
Number of /24s announced per /8 block (Global)
----------------------------------------------
2:1 4:9 7:1 8:72 9:1 12:1806
15:19 16:3 17:3 18:8 20:37 24:924
25:1 32:53 38:301 40:57 41:129 44:2
47:4 52:4 55:2 56:3 57:26 58:390
59:371 60:272 61:929 62:970 63:1964 64:3074
65:2355 66:3252 67:802 68:637 69:1825 70:500
71:104 72:1312 73:1 74:410 75:258 76:45
77:176 80:915 81:853 82:591 83:374 84:435
85:751 86:361 87:465 88:263 89:849 90:24
91:270 97:6 116:53 121:174 122:521 123:96
124:797 125:926 128:278 129:219 130:123 131:349
132:52 133:11 134:193 135:39 136:183 137:78
138:197 139:65 140:474 141:164 142:371 143:213
144:289 145:43 146:322 147:145 148:399 149:142
150:115 151:158 152:92 153:120 154:4 155:252
156:155 157:182 158:160 159:156 160:105 161:89
162:234 163:176 164:452 165:404 166:234 167:279
168:491 169:120 170:399 171:16 172:1 189:396
190:598 192:5762 193:3804 194:3100 195:2199 196:949
198:3748 199:3302 200:4755 201:977 202:7244 203:7454
204:3946 205:2084 206:2323 207:2879 208:2652 209:3604
210:2480 211:937 212:1310 213:1458 214:395 215:41
216:4000 217:1138 218:356 219:355 220:947 221:412
222:269
End of report
