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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 08 Aug, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/08/08/0400
Analysis Summary
----------------
BGP routing table entries examined: 227427
Prefixes after maximum aggregation: 119361
Deaggregation factor: 1.91
Unique aggregates announced to Internet: 110647
Total ASes present in the Internet Routing Table: 25888
Prefixes per ASN: 8.79
Origin-only ASes present in the Internet Routing Table: 22566
Origin ASes announcing only one prefix: 11014
Transit ASes present in the Internet Routing Table: 3322
Transit-only ASes present in the Internet Routing Table: 76
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: 1745859552
Equivalent to 104 /8s, 15 /16s and 179 /24s
Percentage of available address space announced: 47.1
Percentage of allocated address space announced: 61.7
Percentage of available address space allocated: 76.4
Total number of prefixes smaller than registry allocations: 120007
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 53249
Total APNIC prefixes after maximum aggregation: 20731
APNIC Deaggregation factor: 2.57
Prefixes being announced from the APNIC address blocks: 50186
Unique aggregates announced from the APNIC address blocks: 22080
APNIC Region origin ASes present in the Internet Routing Table: 3023
APNIC Prefixes per ASN: 16.60
APNIC Region origin ASes announcing only one prefix: 817
APNIC Region transit ASes present in the Internet Routing Table: 458
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 308006560
Equivalent to 18 /8s, 91 /16s and 206 /24s
Percentage of available APNIC address space announced: 76.3
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: 107548
Total ARIN prefixes after maximum aggregation: 62523
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 79177
Unique aggregates announced from the ARIN address blocks: 31593
ARIN Region origin ASes present in the Internet Routing Table: 11728
ARIN Prefixes per ASN: 6.75
ARIN Region origin ASes announcing only one prefix: 4525
ARIN Region transit ASes present in the Internet Routing Table: 1069
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 341499392
Equivalent to 20 /8s, 90 /16s and 222 /24s
Percentage of available ARIN address space announced: 75.4
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: 47932
Total RIPE prefixes after maximum aggregation: 30699
RIPE Deaggregation factor: 1.56
Prefixes being announced from the RIPE address blocks: 44274
Unique aggregates announced from the RIPE address blocks: 29119
RIPE Region origin ASes present in the Internet Routing Table: 10019
RIPE Prefixes per ASN: 4.42
RIPE Region origin ASes announcing only one prefix: 5334
RIPE Region transit ASes present in the Internet Routing Table: 1586
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 323698048
Equivalent to 19 /8s, 75 /16s and 61 /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: 16076
Total LACNIC prefixes after maximum aggregation: 4360
LACNIC Deaggregation factor: 3.69
Prefixes being announced from the LACNIC address blocks: 14133
Unique aggregates announced from the LACNIC address blocks: 7831
LACNIC Region origin ASes present in the Internet Routing Table: 839
LACNIC Prefixes per ASN: 16.85
LACNIC Region origin ASes announcing only one prefix: 272
LACNIC Region transit ASes present in the Internet Routing Table: 142
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 41669888
Equivalent to 2 /8s, 123 /16s and 213 /24s
Percentage of available LACNIC address space announced: 62.1
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: 2612
Total AfriNIC prefixes after maximum aggregation: 1038
AfriNIC Deaggregation factor: 2.52
Prefixes being announced from the AfriNIC address blocks: 2159
Unique aggregates announced from the AfriNIC address blocks: 1305
AfriNIC Region origin ASes present in the Internet Routing Table: 202
AfriNIC Prefixes per ASN: 10.69
AfriNIC Region origin ASes announcing only one prefix: 66
AfriNIC Region transit ASes present in the Internet Routing Table: 31
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 6371328
Equivalent to 0 /8s, 97 /16s and 56 /24s
Percentage of available AfriNIC address space announced: 19.0
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 1331 11078 287 CHINANET-BACKBONE
4755 1313 382 71 Videsh Sanchar Nigam Ltd. Aut
9583 1123 80 404 Sify Limited
9498 1009 533 70 BHARTI BT INTERNET LTD.
4766 805 4931 317 Korea Telecom (KIX)
23577 787 34 684 Korea Telecom (ATM-MPLS)
17488 738 48 58 Hathway IP Over Cable Interne
7545 689 150 113 TPG Internet Pty Ltd
18101 580 118 42 Reliance Infocom Ltd Internet
1221 549 1951 427 Telstra Pty Ltd
4812 530 915 96 China Telecom (Shanghai)
4668 512 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
4808 478 768 110 CNCGROUP IP network: China169
9443 472 122 77 Primus Telecommunications
4802 418 112 153 Wantree Development
7474 394 217 271 SingTel Optus Pty Ltd
9829 362 258 14 BSNL National Internet Backbo
17974 362 130 13 PT TELEKOMUNIKASI INDONESIA
4837 352 4944 164 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1464 6072 985 AT&T WorldNet Services
4323 1325 1020 370 Time Warner Telecom
2386 1196 614 739 AT&T Data Communications Serv
11492 1116 109 16 Cable One
6478 1107 321 127 AT&T Worldnet Services
6197 1025 717 514 BellSouth Network Solutions,
18566 1018 288 9 Covad Communications
174 965 6776 855 Cogent Communications
701 942 6562 718 UUNET Technologies, Inc.
7011 905 259 544 Citizens Utilities
1239 813 2742 579 Sprint
20115 807 742 431 Charter Communications
19262 768 2765 187 Verizon Global Networks
22773 751 2148 49 Cox Communications, Inc.
209 744 3869 589 Qwest
5668 628 171 23 CenturyTel Internet Holdings,
6517 577 161 37 Yipes Communications, Inc.
855 574 254 73 Canadian Research Network
852 573 1093 364 Telus Advanced Communications
6198 569 613 259 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2119 515 1075 138 Telenor Internet Access
702 503 1922 404 UUNET - Commercial IP service
24863 362 57 41 LINKdotNET AS number
9116 322 168 26 Goldenlines main autonomous s
3301 313 1456 293 TeliaNet Sweden
3320 313 6035 259 Deutsche Telekom AG
6746 287 130 263 Dynamic Network Technologies,
5089 268 1658 53 NTL Group Limited
680 265 2060 256 DFN-IP service G-WiN
8220 259 445 242 COLT Telecommunications
3215 255 2376 96 France Telecom Transpac
8708 252 420 241 Romania Data Systems S.A.
8551 231 228 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
3246 185 253 176 Song Networks
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 899 1958 205 UniNet S.A. de C.V.
11830 483 299 9 Instituto Costarricense de El
16814 426 26 9 NSS, S.A.
11172 377 116 63 Servicios Alestra S.A de C.V
14522 333 28 7 SatNet S.A.
7303 320 152 40 Telecom Argentina Stet-France
22047 318 246 13 VTR PUNTO NET S.A.
6471 312 75 31 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 225 174 26 Telefonica Del Peru
10620 218 61 20 TVCABLE BOGOTA
6503 203 172 85 AVANTEL, S.A.
23216 196 16 43 RAMtelecom Telecomunicaciones
8163 177 11 6 METROTEL REDES S.A.
20299 163 24 22 NEWCOM AMERICAS
19169 162 10 24 Telconet
21826 161 28 60 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 228 188 7 TEDATA
6713 142 135 11 Itissalat Al-MAGHRIB
2018 138 301 115 Tertiary Education Network
33783 126 8 11 EEPAD TISP TELECOM & INTERNET
5536 124 8 10 Internet Egypt Network
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
33776 47 3 5 Starcomms Nigeria Limited
5713 46 294 36 Telkom SA Ltd
33774 46 29 24 AS Number for Telecom Algeria
16637 42 21 29 Johnnic e-Ventures
12455 30 6 3 Jambonet Autonomous system
8524 28 2 14 AUCEGYPT 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 1313 1242 Videsh Sanchar Nigam Ltd. Aut
11492 1116 1100 Cable One
4134 1331 1044 CHINANET-BACKBONE
18566 1018 1009 Covad Communications
6478 1107 980 AT&T Worldnet Services
4323 1325 955 Time Warner Telecom
9498 1009 939 BHARTI BT INTERNET LTD.
9583 1123 719 Sify Limited
22773 751 702 Cox Communications, Inc.
8151 899 694 UniNet S.A. de C.V.
17488 738 680 Hathway IP Over Cable Interne
5668 628 605 CenturyTel Internet Holdings,
19262 768 581 Verizon Global Networks
7545 689 576 TPG Internet Pty Ltd
6517 577 540 Yipes Communications, Inc.
18101 580 538 Reliance Infocom Ltd Internet
15270 565 528 PaeTec.net -a division of Pae
19916 568 517 OLM LLC
6197 1025 511 BellSouth Network Solutions,
4668 512 502 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
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 /12:131
/13:257 /14:469 /15:905 /16:9572 /17:4030 /18:6541
/19:13817 /20:16107 /21:14664 /22:18990 /23:19921 /24:119584
/25:768 /26:1011 /27:491 /28:78 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1107 1116 Cable One
6478 1106 1107 AT&T Worldnet Services
18566 1000 1018 Covad Communications
9583 966 1123 Sify Limited
2386 890 1196 AT&T Data Communications Serv
7011 803 905 Citizens Utilities
7018 801 1464 AT&T WorldNet Services
6197 780 1025 BellSouth Network Solutions,
23577 778 787 Korea Telecom (ATM-MPLS)
4755 704 1313 Videsh Sanchar Nigam Ltd. Aut
9498 678 1009 BHARTI BT INTERNET LTD.
4766 595 805 Korea Telecom (KIX)
19916 563 568 OLM LLC
17488 561 738 Hathway IP Over Cable Interne
4323 557 1325 Time Warner Telecom
6517 542 577 Yipes Communications, Inc.
15270 530 565 PaeTec.net -a division of Pae
4668 502 512 LG-EDS Systems Inc.
5668 493 628 CenturyTel Internet Holdings,
18101 491 580 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:83 9:1 12:1790 15:19
16:3 17:3 18:12 20:37 24:924 25:1
32:57 33:3 38:343 40:60 41:242 44:2
47:4 52:4 55:3 56:3 57:25 58:469
59:383 60:343 61:998 62:941 63:1993 64:3148
65:2354 66:3310 67:758 68:627 69:1919 70:445
71:102 72:1375 73:2 74:611 75:251 76:88
77:273 78:35 80:833 81:825 82:669 83:370
84:577 85:850 86:338 87:456 88:276 89:958
90:13 91:449 97:6 116:272 117:99 121:253
122:579 123:148 124:849 125:971 128:293 129:212
130:140 131:361 132:55 133:9 134:198 135:39
136:189 137:80 138:149 139:71 140:496 141:172
142:377 143:236 144:287 145:46 146:325 147:120
148:404 149:142 150:111 151:159 152:90 153:122
154:2 155:257 156:156 157:212 158:158 159:165
160:108 161:95 162:177 163:179 164:470 165:394
166:267 167:295 168:506 169:121 170:412 171:22
172:1 189:70 190:920 192:5753 193:3956 194:3177
195:2268 196:960 198:3809 199:3275 200:5053 201:1148
202:7378 203:7579 204:3947 205:1960 206:2414 207:2801
208:2746 209:3476 210:2430 211:970 212:1293 213:1464
214:415 215:39 216:3970 217:1156 218:350 219:386
220:1016 221:414 222:267
End of report
