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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 15 Aug, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/08/15/0400
Analysis Summary
----------------
BGP routing table entries examined: 228676
Prefixes after maximum aggregation: 119855
Deaggregation factor: 1.91
Unique aggregates announced to Internet: 111038
Total ASes present in the Internet Routing Table: 25946
Prefixes per ASN: 8.81
Origin-only ASes present in the Internet Routing Table: 22599
Origin ASes announcing only one prefix: 11027
Transit ASes present in the Internet Routing Table: 3347
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: 1751402976
Equivalent to 104 /8s, 100 /16s and 73 /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: 120965
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 53504
Total APNIC prefixes after maximum aggregation: 20804
APNIC Deaggregation factor: 2.57
Prefixes being announced from the APNIC address blocks: 50452
Unique aggregates announced from the APNIC address blocks: 22187
APNIC Region origin ASes present in the Internet Routing Table: 3039
APNIC Prefixes per ASN: 16.60
APNIC Region origin ASes announcing only one prefix: 820
APNIC Region transit ASes present in the Internet Routing Table: 464
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 311503520
Equivalent to 18 /8s, 145 /16s and 42 /24s
Percentage of available APNIC address space announced: 77.2
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: 108231
Total ARIN prefixes after maximum aggregation: 62878
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 79854
Unique aggregates announced from the ARIN address blocks: 31836
ARIN Region origin ASes present in the Internet Routing Table: 11753
ARIN Prefixes per ASN: 6.79
ARIN Region origin ASes announcing only one prefix: 4527
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: 342210048
Equivalent to 20 /8s, 101 /16s and 182 /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: 48060
Total RIPE prefixes after maximum aggregation: 30752
RIPE Deaggregation factor: 1.56
Prefixes being announced from the RIPE address blocks: 44420
Unique aggregates announced from the RIPE address blocks: 29212
RIPE Region origin ASes present in the Internet Routing Table: 10029
RIPE Prefixes per ASN: 4.43
RIPE Region origin ASes announcing only one prefix: 5338
RIPE Region transit ASes present in the Internet Routing Table: 1600
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 323715200
Equivalent to 19 /8s, 75 /16s and 128 /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: 16156
Total LACNIC prefixes after maximum aggregation: 4371
LACNIC Deaggregation factor: 3.70
Prefixes being announced from the LACNIC address blocks: 14233
Unique aggregates announced from the LACNIC address blocks: 7678
LACNIC Region origin ASes present in the Internet Routing Table: 844
LACNIC Prefixes per ASN: 16.86
LACNIC Region origin ASes announcing only one prefix: 275
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: 41869824
Equivalent to 2 /8s, 126 /16s and 226 /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: 2715
Total AfriNIC prefixes after maximum aggregation: 1040
AfriNIC Deaggregation factor: 2.61
Prefixes being announced from the AfriNIC address blocks: 2272
Unique aggregates announced from the AfriNIC address blocks: 1353
AfriNIC Region origin ASes present in the Internet Routing Table: 205
AfriNIC Prefixes per ASN: 11.08
AfriNIC Region origin ASes announcing only one prefix: 67
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: 7450112
Equivalent to 0 /8s, 113 /16s and 174 /24s
Percentage of available AfriNIC address space announced: 22.2
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 11142 288 CHINANET-BACKBONE
4755 1321 382 71 Videsh Sanchar Nigam Ltd. Aut
9583 1124 80 403 Sify Limited
9498 994 532 69 BHARTI BT INTERNET LTD.
4766 797 5440 315 Korea Telecom (KIX)
23577 790 34 686 Korea Telecom (ATM-MPLS)
17488 751 49 57 Hathway IP Over Cable Interne
7545 700 150 116 TPG Internet Pty Ltd
18101 587 118 45 Reliance Infocom Ltd Internet
1221 547 1951 428 Telstra Pty Ltd
4812 538 947 97 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
17974 357 130 13 PT TELEKOMUNIKASI INDONESIA
4837 354 4944 165 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1472 6075 990 AT&T WorldNet Services
4323 1328 1006 371 Time Warner Telecom
2386 1201 614 739 AT&T Data Communications Serv
11492 1121 109 32 Cable One
6197 1029 718 512 BellSouth Network Solutions,
18566 1019 288 9 Covad Communications
6478 1008 292 343 AT&T Worldnet Services
174 967 6777 857 Cogent Communications
701 939 6562 720 UUNET Technologies, Inc.
7011 906 259 544 Citizens Utilities
20115 807 742 431 Charter Communications
1239 803 2725 570 Sprint
19262 763 2721 182 Verizon Global Networks
22773 754 2148 49 Cox Communications, Inc.
209 736 3853 583 Qwest
5668 629 171 24 CenturyTel Internet Holdings,
6517 577 161 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
702 502 1922 403 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 313 6035 260 Deutsche Telekom AG
6746 287 130 263 Dynamic Network Technologies,
5089 268 1658 53 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 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
1257 194 1195 172 SWIPnet Swedish IP Network
12479 193 578 6 Uni2 Autonomous System
3300 190 172 91 AUCS Communications Services
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 914 1957 208 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 335 174 41 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 261 104 9 Prima S.A.
11556 235 128 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 169 12 18 Telconet
21826 162 28 61 INTERCABLE
20299 161 24 20 NEWCOM AMERICAS
7910 159 11 28 ANDINET ON LINE
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
16637 46 21 29 Johnnic e-Ventures
33774 46 29 24 AS Number for Telecom Algeria
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 1321 1250 Videsh Sanchar Nigam Ltd. Aut
11492 1121 1089 Cable One
4134 1331 1043 CHINANET-BACKBONE
18566 1019 1010 Covad Communications
4323 1328 957 Time Warner Telecom
9498 994 925 BHARTI BT INTERNET LTD.
9583 1124 721 Sify Limited
8151 914 706 UniNet S.A. de C.V.
22773 754 705 Cox Communications, Inc.
17488 751 694 Hathway IP Over Cable Interne
6478 1008 665 AT&T Worldnet Services
5668 629 605 CenturyTel Internet Holdings,
7545 700 584 TPG Internet Pty Ltd
19262 763 581 Verizon Global Networks
18101 587 542 Reliance Infocom Ltd Internet
6517 577 540 Yipes Communications, Inc.
15270 568 530 PaeTec.net -a division of Pae
6197 1029 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 /12:134
/13:257 /14:471 /15:914 /16:9582 /17:4044 /18:6552
/19:13859 /20:16137 /21:14689 /22:19054 /23:19977 /24:120539
/25:776 /26:1021 /27:501 /28:78 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1113 1121 Cable One
6478 1007 1008 AT&T Worldnet Services
18566 1001 1019 Covad Communications
9583 966 1124 Sify Limited
2386 895 1201 AT&T Data Communications Serv
7018 809 1472 AT&T WorldNet Services
7011 804 906 Citizens Utilities
6197 782 1029 BellSouth Network Solutions,
23577 781 790 Korea Telecom (ATM-MPLS)
4755 709 1321 Videsh Sanchar Nigam Ltd. Aut
9498 663 994 BHARTI BT INTERNET LTD.
4766 594 797 Korea Telecom (KIX)
17488 574 751 Hathway IP Over Cable Interne
19916 563 568 OLM LLC
4323 559 1328 Time Warner Telecom
6517 542 577 Yipes Communications, Inc.
15270 532 568 PaeTec.net -a division of Pae
4668 502 512 LG-EDS Systems Inc.
18101 497 587 Reliance Infocom Ltd Internet
5668 494 629 CenturyTel Internet Holdings,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:86 12:1782 15:19 16:3
17:3 18:12 20:37 24:952 25:1 32:57
33:3 38:344 40:60 41:301 44:2 47:4
52:4 55:3 56:3 57:25 58:468 59:385
60:348 61:990 62:931 63:1994 64:3268 65:2390
66:3425 67:758 68:623 69:1940 70:444 71:104
72:1507 73:2 74:617 75:256 76:99 77:276
78:33 80:833 81:822 82:656 83:379 84:597
85:852 86:338 87:479 88:284 89:958 90:22
91:482 97:6 116:277 117:123 121:260 122:575
123:152 124:842 125:979 128:290 129:210 130:140
131:362 132:55 133:9 134:199 135:34 136:188
137:80 138:148 139:71 140:493 141:172 142:378
143:251 144:295 145:46 146:324 147:120 148:410
149:142 150:111 151:159 152:88 153:122 154:3
155:261 156:156 157:210 158:157 159:176 160:108
161:94 162:185 163:179 164:472 165:390 166:270
167:295 168:506 169:121 170:393 171:22 172:2
189:68 190:930 192:5746 193:3963 194:3177 195:2270
196:1006 198:3815 199:3273 200:5083 201:1151 202:7402
203:7626 204:3936 205:1978 206:2415 207:2816 208:2768
209:3511 210:2439 211:985 212:1314 213:1470 214:414
215:41 216:3971 217:1160 218:351 219:383 220:1018
221:415 222:263
End of report
