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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 23 Oct, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/10/23/0400
Analysis Summary
----------------
BGP routing table entries examined: 235389
Prefixes after maximum aggregation: 121991
Deaggregation factor: 1.93
Unique aggregates announced to Internet: 114763
Total ASes present in the Internet Routing Table: 26521
Prefixes per ASN: 8.88
Origin-only ASes present in the Internet Routing Table: 23079
Origin ASes announcing only one prefix: 11252
Transit ASes present in the Internet Routing Table: 3442
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: 20
Max AS path prepend of ASN (35389) 16
Prefixes from unregistered ASNs in the Routing Table: 26
Unregistered ASNs in the Routing Table: 7
Prefixes from 32-bit ASNs in the Routing Table: 7
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1796435968
Equivalent to 107 /8s, 19 /16s and 112 /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: 109055
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 54954
Total APNIC prefixes after maximum aggregation: 21083
APNIC Deaggregation factor: 2.61
Prefixes being announced from the APNIC address blocks: 51886
Unique aggregates announced from the APNIC address blocks: 22981
APNIC Region origin ASes present in the Internet Routing Table: 3078
APNIC Prefixes per ASN: 16.86
APNIC Region origin ASes announcing only one prefix: 815
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: 322112192
Equivalent to 19 /8s, 51 /16s and 10 /24s
Percentage of available APNIC address space announced: 79.8
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: 110623
Total ARIN prefixes after maximum aggregation: 63600
ARIN Deaggregation factor: 1.74
Prefixes being announced from the ARIN address blocks: 81775
Unique aggregates announced from the ARIN address blocks: 32339
ARIN Region origin ASes present in the Internet Routing Table: 11902
ARIN Prefixes per ASN: 6.87
ARIN Region origin ASes announcing only one prefix: 4578
ARIN Region transit ASes present in the Internet Routing Table: 1100
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 15
Number of ARIN addresses announced to Internet: 348166272
Equivalent to 20 /8s, 192 /16s and 152 /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: 49662
Total RIPE prefixes after maximum aggregation: 31710
RIPE Deaggregation factor: 1.57
Prefixes being announced from the RIPE address blocks: 46121
Unique aggregates announced from the RIPE address blocks: 30400
RIPE Region origin ASes present in the Internet Routing Table: 10382
RIPE Prefixes per ASN: 4.44
RIPE Region origin ASes announcing only one prefix: 5512
RIPE Region transit ASes present in the Internet Routing Table: 1642
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 333735424
Equivalent to 19 /8s, 228 /16s and 102 /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: 17406
Total LACNIC prefixes after maximum aggregation: 4546
LACNIC Deaggregation factor: 3.83
Prefixes being announced from the LACNIC address blocks: 15421
Unique aggregates announced from the LACNIC address blocks: 8628
LACNIC Region origin ASes present in the Internet Routing Table: 873
LACNIC Prefixes per ASN: 17.66
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: 44549632
Equivalent to 2 /8s, 167 /16s and 198 /24s
Percentage of available LACNIC address space announced: 44.3
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: 2710
Total AfriNIC prefixes after maximum aggregation: 1038
AfriNIC Deaggregation factor: 2.61
Prefixes being announced from the AfriNIC address blocks: 2305
Unique aggregates announced from the AfriNIC address blocks: 1388
AfriNIC Region origin ASes present in the Internet Routing Table: 210
AfriNIC Prefixes per ASN: 10.98
AfriNIC Region origin ASes announcing only one prefix: 66
AfriNIC Region transit ASes present in the Internet Routing Table: 38
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 7625984
Equivalent to 0 /8s, 116 /16s and 93 /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 1121 81 421 Sify Limited
4134 1099 11539 299 CHINANET-BACKBONE
9498 1004 550 68 BHARTI BT INTERNET LTD.
17488 850 55 63 Hathway IP Over Cable Interne
4766 808 5442 321 Korea Telecom (KIX)
23577 790 34 683 Korea Telecom (ATM-MPLS)
7545 727 159 119 TPG Internet Pty Ltd
18101 607 119 52 Reliance Infocom Ltd Internet
4802 572 133 141 Wantree Development
1221 540 1950 420 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 493 792 118 CNCGROUP IP network: China169
9443 440 121 72 Primus Telecommunications
7474 381 218 267 SingTel Optus Pty Ltd
17974 363 130 13 PT TELEKOMUNIKASI INDONESIA
4837 359 5137 170 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1487 6149 997 AT&T WorldNet Services
4323 1366 1006 360 Time Warner Telecom
2386 1235 627 745 AT&T Data Communications Serv
11492 1155 116 16 Cable One
6478 1117 329 173 AT&T Worldnet Services
6197 1029 718 513 BellSouth Network Solutions,
18566 1028 288 9 Covad Communications
174 981 6786 843 Cogent Communications
7011 961 290 558 Citizens Utilities
701 880 6575 689 UUNET Technologies, Inc.
20115 837 765 447 Charter Communications
1239 804 2721 563 Sprint
22773 797 2133 54 Cox Communications, Inc.
19262 789 2847 180 Verizon Global Networks
209 745 3793 586 Qwest
3356 728 10858 388 Level 3 Communications, LLC
5668 661 176 17 CenturyTel Internet Holdings,
3561 590 2326 387 Savvis
6517 589 165 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
702 473 1920 386 UUNET - Commercial IP service
24863 373 58 37 LINKdotNET AS number
9116 344 168 28 Goldenlines main autonomous s
3301 316 1441 293 TeliaNet Sweden
3320 315 6035 262 Deutsche Telekom AG
8551 310 298 41 Bezeq International
6746 279 130 255 Dynamic Network Technologies,
8708 271 421 243 Romania Data Systems S.A.
680 269 2045 257 DFN-IP service G-WiN
8866 266 62 24 Bulgarian Telecommunication C
3215 263 2488 99 France Telecom Transpac
8220 255 444 237 COLT Telecommunications
3352 232 1914 41 Ibernet, Internet Access Netw
3269 227 2933 74 TELECOM ITALIA
9121 212 1442 25 TTnet Autonomous System
3300 200 172 96 AUCS Communications Services
3292 195 1380 177 TDC Tele Danmark
20858 195 34 3 EgyNet
1257 194 1194 176 SWIPnet Swedish IP Network
12479 194 578 6 Uni2 Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1050 2195 210 UniNet S.A. de C.V.
11830 514 299 9 Instituto Costarricense de El
16814 427 27 10 NSS, S.A.
11172 380 114 60 Servicios Alestra S.A de C.V
14522 380 32 7 SatNet S.A.
7303 359 173 52 Telecom Argentina Stet-France
6471 347 75 36 ENTEL CHILE S.A.
22047 317 246 13 VTR PUNTO NET S.A.
14117 285 19 15 Telefonica del Sur S.A.
10481 261 104 9 Prima S.A.
10620 256 71 27 TVCABLE BOGOTA
11556 236 128 4 Cable-Wireless Panama
6147 231 178 24 Telefonica Del Peru
6503 210 170 82 AVANTEL, S.A.
23216 209 17 46 RAMtelecom Telecomunicaciones
7738 204 538 24 Telecomunicacoes da Bahia S.A
28573 195 306 22 NET Servicos de Comunicao S.A
8163 183 11 8 METROTEL REDES S.A.
21826 181 32 50 INTERCABLE
20299 180 25 30 NEWCOM AMERICAS
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
33774 48 33 25 AS Number for Telecom Algeria
5713 46 294 36 Telkom SA Ltd
16637 42 21 29 Johnnic e-Ventures
15706 36 12 4 Sudatel Internet Exchange Aut
12455 35 6 3 Jambonet Autonomous system
8524 32 2 10 AUCEGYPT Autonomous System
10798 26 16 1 Standard Bank of South Africa
29975 26 10 9 Vodacom
21280 25 4 4 Swift Global Kenya Ltd.Is an
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1470 1403 Videsh Sanchar Nigam Ltd. Aut
11492 1155 1139 Cable One
18566 1028 1019 Covad Communications
4323 1366 1006 Time Warner Telecom
6478 1117 944 AT&T Worldnet Services
9498 1004 936 BHARTI BT INTERNET LTD.
8151 1050 840 UniNet S.A. de C.V.
4134 1099 800 CHINANET-BACKBONE
17488 850 787 Hathway IP Over Cable Interne
22773 797 743 Cox Communications, Inc.
9583 1121 700 Sify Limited
5668 661 644 CenturyTel Internet Holdings,
19262 789 609 Verizon Global Networks
7545 727 608 TPG Internet Pty Ltd
18101 607 555 Reliance Infocom Ltd Internet
6517 589 553 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
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
/13:267 /14:477 /15:940 /16:9686 /17:4134 /18:6678
/19:14388 /20:16613 /21:15415 /22:19724 /23:20650 /24:123761
/25:780 /26:1017 /27:537 /28:92 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1146 1155 Cable One
6478 1116 1117 AT&T Worldnet Services
18566 1010 1028 Covad Communications
9583 963 1121 Sify Limited
2386 925 1235 AT&T Data Communications Serv
7011 848 961 Citizens Utilities
4755 839 1470 Videsh Sanchar Nigam Ltd. Aut
7018 813 1487 AT&T WorldNet Services
23577 781 790 Korea Telecom (ATM-MPLS)
6197 773 1029 BellSouth Network Solutions,
9498 690 1004 BHARTI BT INTERNET LTD.
17488 673 850 Hathway IP Over Cable Interne
4766 606 808 Korea Telecom (KIX)
4323 581 1366 Time Warner Telecom
19916 564 569 OLM LLC
6517 544 589 Yipes Communications, Inc.
5668 521 661 CenturyTel Internet Holdings,
4668 508 518 LG-EDS Systems Inc.
18101 508 607 Reliance Infocom Ltd Internet
15270 483 518 PaeTec.net -a division of Pae
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:84 12:1792 15:19 16:3 17:5
18:13 20:36 24:979 25:1 32:60 33:3
38:357 40:64 41:342 44:2 45:1 47:8
52:3 55:3 56:3 57:23 58:470 59:416
60:379 61:985 62:926 63:1987 64:3274 65:2370
66:3557 67:828 68:674 69:2002 70:464 71:107
72:1406 73:6 74:723 75:261 76:147 77:402
78:258 80:852 81:799 82:577 83:356 84:620
85:832 86:347 87:582 88:290 89:1055 90:39
91:667 92:3 96:1 97:6 98:6 116:410
117:201 118:40 121:322 122:614 123:205 124:699
125:1036 128:275 129:195 130:136 131:367 132:55
133:9 134:192 135:34 136:188 137:82 138:157
139:74 140:500 141:151 142:371 143:253 144:316
145:46 146:327 147:130 148:485 149:187 150:113
151:137 152:89 153:121 154:11 155:262 156:161
157:222 158:160 159:197 160:140 161:97 162:179
163:183 164:496 165:397 166:290 167:307 168:499
169:126 170:399 171:22 172:2 189:101 190:1172
192:5718 193:3993 194:3214 195:2471 196:939 198:3798
199:3232 200:5242 201:1236 202:7383 203:7902 204:3983
205:2014 206:2421 207:2807 208:2896 209:3578 210:2445
211:1078 212:1334 213:1515 214:415 215:44 216:4099
217:1201 218:318 219:388 220:998 221:412 222:264
End of report
