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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 25 Oct, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/10/25/0400
Analysis Summary
----------------
BGP routing table entries examined: 235266
Prefixes after maximum aggregation: 122097
Deaggregation factor: 1.93
Unique aggregates announced to Internet: 114879
Total ASes present in the Internet Routing Table: 26548
Prefixes per ASN: 8.86
Origin-only ASes present in the Internet Routing Table: 23114
Origin ASes announcing only one prefix: 11280
Transit ASes present in the Internet Routing Table: 3434
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: 20
Max AS path prepend of ASN (35389) 16
Prefixes from unregistered ASNs in the Routing Table: 27
Unregistered ASNs in the Routing Table: 9
Prefixes from 32-bit ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1796797312
Equivalent to 107 /8s, 24 /16s and 243 /24s
Percentage of available address space announced: 48.5
Percentage of allocated address space announced: 62.7
Percentage of available address space allocated: 77.3
Total number of prefixes smaller than registry allocations: 109143
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 54897
Total APNIC prefixes after maximum aggregation: 21091
APNIC Deaggregation factor: 2.60
Prefixes being announced from the APNIC address blocks: 51822
Unique aggregates announced from the APNIC address blocks: 22955
APNIC Region origin ASes present in the Internet Routing Table: 3079
APNIC Prefixes per ASN: 16.83
APNIC Region origin ASes announcing only one prefix: 814
APNIC Region transit ASes present in the Internet Routing Table: 471
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 321776064
Equivalent to 19 /8s, 45 /16s and 233 /24s
Percentage of available APNIC address space announced: 79.7
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: 110464
Total ARIN prefixes after maximum aggregation: 63646
ARIN Deaggregation factor: 1.74
Prefixes being announced from the ARIN address blocks: 81729
Unique aggregates announced from the ARIN address blocks: 32462
ARIN Region origin ASes present in the Internet Routing Table: 11907
ARIN Prefixes per ASN: 6.86
ARIN Region origin ASes announcing only one prefix: 4586
ARIN Region transit ASes present in the Internet Routing Table: 1103
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 15
Number of ARIN addresses announced to Internet: 348272512
Equivalent to 20 /8s, 194 /16s and 55 /24s
Percentage of available ARIN address space announced: 76.9
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: 49699
Total RIPE prefixes after maximum aggregation: 31749
RIPE Deaggregation factor: 1.57
Prefixes being announced from the RIPE address blocks: 46172
Unique aggregates announced from the RIPE address blocks: 30392
RIPE Region origin ASes present in the Internet Routing Table: 10403
RIPE Prefixes per ASN: 4.44
RIPE Region origin ASes announcing only one prefix: 5531
RIPE Region transit ASes present in the Internet Routing Table: 1634
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 333816704
Equivalent to 19 /8s, 229 /16s and 163 /24s
Percentage of available RIPE address space announced: 76.5
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
40960-45055
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: 17439
Total LACNIC prefixes after maximum aggregation: 4563
LACNIC Deaggregation factor: 3.82
Prefixes being announced from the LACNIC address blocks: 15446
Unique aggregates announced from the LACNIC address blocks: 8642
LACNIC Region origin ASes present in the Internet Routing Table: 871
LACNIC Prefixes per ASN: 17.73
LACNIC Region origin ASes announcing only one prefix: 281
LACNIC Region transit ASes present in the Internet Routing Table: 153
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 44758528
Equivalent to 2 /8s, 170 /16s and 246 /24s
Percentage of available LACNIC address space announced: 44.5
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 186/7, 189/8, 190/8, 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 2733
Total AfriNIC prefixes after maximum aggregation: 1036
AfriNIC Deaggregation factor: 2.64
Prefixes being announced from the AfriNIC address blocks: 2318
Unique aggregates announced from the AfriNIC address blocks: 1388
AfriNIC Region origin ASes present in the Internet Routing Table: 211
AfriNIC Prefixes per ASN: 10.99
AfriNIC Region origin ASes announcing only one prefix: 68
AfriNIC Region transit ASes present in the Internet Routing Table: 39
Average AfriNIC Region AS path length visible: 4.0
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 7625472
Equivalent to 0 /8s, 116 /16s and 91 /24s
Percentage of available AfriNIC address space announced: 22.7
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
4755 1470 383 67 Videsh Sanchar Nigam Ltd. Aut
9583 1118 81 419 Sify Limited
4134 1097 11537 298 CHINANET-BACKBONE
9498 1008 550 67 BHARTI BT INTERNET LTD.
17488 851 55 64 Hathway IP Over Cable Interne
4766 808 5441 320 Korea Telecom (KIX)
23577 782 34 681 Korea Telecom (ATM-MPLS)
7545 707 156 117 TPG Internet Pty Ltd
18101 608 119 52 Reliance Infocom Ltd Internet
1221 541 1950 421 Telstra Pty Ltd
9829 530 1312 9 BSNL National Internet Backbo
4812 523 858 76 China Telecom (Shanghai)
4668 518 68 10 LG-EDS Systems Inc.
17676 502 10903 63 Softbank BB Corp.
4808 495 792 118 CNCGROUP IP network: China169
4802 487 133 141 Wantree Development
9443 441 121 72 Primus Telecommunications
7474 380 202 266 SingTel Optus Pty Ltd
17974 363 130 13 PT TELEKOMUNIKASI INDONESIA
4837 357 5057 168 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1487 6149 998 AT&T WorldNet Services
4323 1346 1006 357 Time Warner Telecom
2386 1240 628 750 AT&T Data Communications Serv
11492 1157 116 33 Cable One
6478 1108 327 206 AT&T Worldnet Services
6197 1029 718 513 BellSouth Network Solutions,
18566 1028 288 9 Covad Communications
174 989 6786 843 Cogent Communications
7011 956 288 558 Citizens Utilities
701 880 6575 691 UUNET Technologies, Inc.
20115 833 763 453 Charter Communications
1239 803 2721 561 Sprint
22773 799 2133 54 Cox Communications, Inc.
19262 791 2849 182 Verizon Global Networks
3356 749 10890 395 Level 3 Communications, LLC
209 745 3793 587 Qwest
5668 663 176 17 CenturyTel Internet Holdings,
3561 592 2326 388 Savvis
6517 591 165 36 Yipes Communications, Inc.
852 584 1107 361 Telus Advanced Communications
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 474 1920 387 UUNET - Commercial IP service
24863 374 58 38 LINKdotNET AS number
9116 343 168 28 Goldenlines main autonomous s
3301 316 1441 293 TeliaNet Sweden
3320 316 6035 263 Deutsche Telekom AG
8551 311 298 41 Bezeq International
6746 277 130 253 Dynamic Network Technologies,
8708 271 421 243 Romania Data Systems S.A.
680 269 2045 257 DFN-IP service G-WiN
8866 267 62 24 Bulgarian Telecommunication C
3215 263 2488 99 France Telecom Transpac
8220 255 444 237 COLT Telecommunications
3352 232 1916 40 Ibernet, Internet Access Netw
3269 227 2933 74 TELECOM ITALIA
9121 212 1442 25 TTnet Autonomous System
3300 198 172 94 AUCS Communications Services
3292 196 1380 177 TDC Tele Danmark
20858 195 34 3 EgyNet
1257 194 1194 176 SWIPnet Swedish IP Network
3246 194 257 184 Song Networks
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1054 2196 214 UniNet S.A. de C.V.
11830 514 299 9 Instituto Costarricense de El
16814 427 27 10 NSS, S.A.
14522 380 32 7 SatNet S.A.
11172 372 114 58 Servicios Alestra S.A de C.V
7303 358 173 52 Telecom Argentina Stet-France
6471 348 75 37 ENTEL CHILE S.A.
22047 317 246 13 VTR PUNTO NET S.A.
14117 285 19 15 Telefonica del Sur S.A.
10620 263 73 29 TVCABLE BOGOTA
10481 261 104 9 Prima S.A.
11556 237 128 4 Cable-Wireless Panama
6147 231 178 24 Telefonica Del Peru
23216 210 17 46 RAMtelecom Telecomunicaciones
6503 204 184 78 AVANTEL, S.A.
7738 204 538 24 Telecomunicacoes da Bahia S.A
28573 199 310 26 NET Servicos de Comunicao S.A
8163 183 11 8 METROTEL REDES S.A.
20299 181 25 31 NEWCOM AMERICAS
21826 181 32 50 INTERCABLE
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 279 869 225 The Internet Solution
8452 221 188 7 TEDATA
6713 143 135 11 Itissalat Al-MAGHRIB
2018 140 299 115 Tertiary Education Network
33783 127 8 11 EEPAD TISP TELECOM & INTERNET
5536 124 8 10 Internet Egypt Network
33776 100 6 3 Starcomms Nigeria Limited
24835 88 48 6 RAYA Telecom - Egypt
15475 77 84 4 Nile Online
2905 75 174 72 The Internetworking Company o
23889 73 24 15 MAURITIUS TELECOM
15706 55 12 4 Sudatel Internet Exchange Aut
33774 48 33 25 AS Number for Telecom Algeria
5713 46 294 36 Telkom SA Ltd
16637 42 21 29 Johnnic e-Ventures
12455 35 6 3 Jambonet Autonomous system
8524 32 2 10 AUCEGYPT Autonomous System
10798 26 16 1 Standard Bank of South Africa
21280 26 4 4 Swift Global Kenya Ltd.Is an
29975 26 10 9 Vodacom
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1470 1403 Videsh Sanchar Nigam Ltd. Aut
11492 1157 1124 Cable One
18566 1028 1019 Covad Communications
4323 1346 989 Time Warner Telecom
9498 1008 941 BHARTI BT INTERNET LTD.
6478 1108 902 AT&T Worldnet Services
8151 1054 840 UniNet S.A. de C.V.
4134 1097 799 CHINANET-BACKBONE
17488 851 787 Hathway IP Over Cable Interne
22773 799 745 Cox Communications, Inc.
9583 1118 699 Sify Limited
5668 663 646 CenturyTel Internet Holdings,
19262 791 609 Verizon Global Networks
7545 707 590 TPG Internet Pty Ltd
18101 608 556 Reliance Infocom Ltd Internet
6517 591 555 Yipes Communications, Inc.
19916 569 522 OLM LLC
9829 530 521 BSNL National Internet Backbo
6197 1029 516 BellSouth Network Solutions,
4668 518 508 LG-EDS Systems Inc.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
64250 RESERVED 59.144.44.0/24 9498 BHARTI BT INTERNET L
64999 PRIVATE 78.24.120.0/23 3257 Tiscali Intl Network
64999 PRIVATE 78.24.122.0/23 3257 Tiscali Intl Network
64999 PRIVATE 78.24.124.0/24 3257 Tiscali Intl Network
64999 PRIVATE 78.24.125.0/24 3257 Tiscali Intl Network
64999 PRIVATE 78.24.126.0/24 3257 Tiscali Intl Network
64999 PRIVATE 78.24.127.0/24 3257 Tiscali Intl Network
64250 RESERVED 122.167.64.0/19 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.96.0/20 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.112.0/21 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.176.0/21 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.188.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.192.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.196.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.200.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.204.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.208.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.212.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.216.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.220.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.240.0/23 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.242.0/23 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.244.0/23 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.246.0/23 9498 BHARTI BT INTERNET L
64250 RESERVED 122.171.0.0/24 9498 BHARTI BT INTERNET L
64250 RESERVED 122.171.1.0/24 9498 BHARTI BT INTERNET L
65000 PRIVATE 216.136.11.0/24 27182 Peregrine Capital Ma
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
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 /10:16 /11:38 /12:135
/13:268 /14:476 /15:943 /16:9685 /17:4140 /18:6676
/19:14409 /20:16631 /21:15428 /22:19753 /23:20661 /24:123535
/25:777 /26:1014 /27:538 /28:102 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1149 1157 Cable One
6478 1107 1108 AT&T Worldnet Services
18566 1010 1028 Covad Communications
9583 962 1118 Sify Limited
2386 930 1240 AT&T Data Communications Serv
7011 843 956 Citizens Utilities
4755 840 1470 Videsh Sanchar Nigam Ltd. Aut
7018 813 1487 AT&T WorldNet Services
6197 773 1029 BellSouth Network Solutions,
23577 773 782 Korea Telecom (ATM-MPLS)
9498 695 1008 BHARTI BT INTERNET LTD.
17488 674 851 Hathway IP Over Cable Interne
4766 606 808 Korea Telecom (KIX)
4323 569 1346 Time Warner Telecom
19916 564 569 OLM LLC
6517 546 591 Yipes Communications, Inc.
5668 521 663 CenturyTel Internet Holdings,
18101 509 608 Reliance Infocom Ltd Internet
4668 508 518 LG-EDS Systems Inc.
15270 485 520 PaeTec.net -a division of Pae
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:86 12:1793 15:19 16:3 17:5
18:13 20:36 24:983 25:1 32:57 33:3
38:355 40:64 41:343 44:2 45:2 47:8
52:3 55:3 56:3 57:23 58:470 59:416
60:380 61:980 62:933 63:1983 64:3280 65:2369
66:3556 67:832 68:672 69:1995 70:464 71:107
72:1409 73:6 74:725 75:261 76:150 77:404
78:246 79:1 80:856 81:798 82:579 83:356
84:597 85:836 86:348 87:581 88:285 89:1042
90:38 91:671 92:3 96:1 97:6 98:8
116:414 117:205 118:39 121:319 122:613 123:205
124:700 125:1038 128:276 129:195 130:136 131:368
132:56 133:9 134:193 135:34 136:188 137:82
138:156 139:75 140:502 141:151 142:371 143:254
144:317 145:46 146:327 147:130 148:486 149:184
150:113 151:136 152:89 153:121 154:11 155:261
156:161 157:223 158:160 159:199 160:139 161:98
162:182 163:183 164:496 165:397 166:290 167:308
168:499 169:126 170:399 171:22 172:2 189:115
190:1179 192:5711 193:3995 194:3216 195:2473 196:942
198:3717 199:3231 200:5223 201:1229 202:7382 203:7785
204:3976 205:2013 206:2343 207:2802 208:2911 209:3586
210:2451 211:1077 212:1344 213:1523 214:416 215:44
216:4088 217:1230 218:318 219:388 220:1010 221:411
222:265
End of report
