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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 01 Oct, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/10/01/0400
Analysis Summary
----------------
BGP routing table entries examined: 233290
Prefixes after maximum aggregation: 121067
Deaggregation factor: 1.93
Unique aggregates announced to Internet: 113282
Total ASes present in the Internet Routing Table: 26320
Prefixes per ASN: 8.86
Origin-only ASes present in the Internet Routing Table: 22911
Origin ASes announcing only one prefix: 11183
Transit ASes present in the Internet Routing Table: 3409
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: 20
Unregistered ASNs in the Routing Table: 6
Prefixes from 32-bit ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1788372768
Equivalent to 106 /8s, 152 /16s and 103 /24s
Percentage of available address space announced: 48.3
Percentage of allocated address space announced: 63.2
Percentage of available address space allocated: 76.4
Total number of prefixes smaller than registry allocations: 124134
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 54609
Total APNIC prefixes after maximum aggregation: 20998
APNIC Deaggregation factor: 2.60
Prefixes being announced from the APNIC address blocks: 51536
Unique aggregates announced from the APNIC address blocks: 22784
APNIC Region origin ASes present in the Internet Routing Table: 3065
APNIC Prefixes per ASN: 16.81
APNIC Region origin ASes announcing only one prefix: 813
APNIC Region transit ASes present in the Internet Routing Table: 474
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 320810656
Equivalent to 19 /8s, 31 /16s and 46 /24s
Percentage of available APNIC address space announced: 79.5
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: 109931
Total ARIN prefixes after maximum aggregation: 63276
ARIN Deaggregation factor: 1.74
Prefixes being announced from the ARIN address blocks: 81078
Unique aggregates announced from the ARIN address blocks: 32151
ARIN Region origin ASes present in the Internet Routing Table: 11860
ARIN Prefixes per ASN: 6.84
ARIN Region origin ASes announcing only one prefix: 4557
ARIN Region transit ASes present in the Internet Routing Table: 1093
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 14
Number of ARIN addresses announced to Internet: 346230144
Equivalent to 20 /8s, 163 /16s and 13 /24s
Percentage of available ARIN address space announced: 76.4
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: 48910
Total RIPE prefixes after maximum aggregation: 31251
RIPE Deaggregation factor: 1.57
Prefixes being announced from the RIPE address blocks: 45314
Unique aggregates announced from the RIPE address blocks: 29912
RIPE Region origin ASes present in the Internet Routing Table: 10249
RIPE Prefixes per ASN: 4.42
RIPE Region origin ASes announcing only one prefix: 5465
RIPE Region transit ASes present in the Internet Routing Table: 1625
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 329325952
Equivalent to 19 /8s, 161 /16s and 29 /24s
Percentage of available RIPE address space announced: 75.5
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: 17119
Total LACNIC prefixes after maximum aggregation: 4500
LACNIC Deaggregation factor: 3.80
Prefixes being announced from the LACNIC address blocks: 15217
Unique aggregates announced from the LACNIC address blocks: 8205
LACNIC Region origin ASes present in the Internet Routing Table: 865
LACNIC Prefixes per ASN: 17.59
LACNIC Region origin ASes announcing only one prefix: 277
LACNIC Region transit ASes present in the Internet Routing Table: 149
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 43535040
Equivalent to 2 /8s, 152 /16s and 74 /24s
Percentage of available LACNIC address space announced: 64.9
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: 2692
Total AfriNIC prefixes after maximum aggregation: 1026
AfriNIC Deaggregation factor: 2.62
Prefixes being announced from the AfriNIC address blocks: 2258
Unique aggregates announced from the AfriNIC address blocks: 1355
AfriNIC Region origin ASes present in the Internet Routing Table: 205
AfriNIC Prefixes per ASN: 11.01
AfriNIC Region origin ASes announcing only one prefix: 71
AfriNIC Region transit ASes present in the Internet Routing Table: 34
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 7456256
Equivalent to 0 /8s, 113 /16s and 198 /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
4755 1423 383 67 Videsh Sanchar Nigam Ltd. Aut
9583 1128 81 411 Sify Limited
4134 1098 11508 299 CHINANET-BACKBONE
9498 1002 533 66 BHARTI BT INTERNET LTD.
17488 816 53 61 Hathway IP Over Cable Interne
4766 809 5441 321 Korea Telecom (KIX)
23577 792 34 686 Korea Telecom (ATM-MPLS)
7545 732 159 119 TPG Internet Pty Ltd
18101 600 119 50 Reliance Infocom Ltd Internet
4802 576 131 149 Wantree Development
4812 548 974 94 China Telecom (Shanghai)
1221 538 1950 419 Telstra Pty Ltd
9829 530 1312 9 BSNL National Internet Backbo
4668 517 68 10 LG-EDS Systems Inc.
17676 502 10903 63 Softbank BB Corp.
4808 494 792 119 CNCGROUP IP network: China169
9443 467 122 77 Primus Telecommunications
7474 381 218 268 SingTel Optus Pty Ltd
17974 361 130 13 PT TELEKOMUNIKASI INDONESIA
4837 358 5136 169 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1475 6122 990 AT&T WorldNet Services
4323 1401 991 366 Time Warner Telecom
2386 1219 635 731 AT&T Data Communications Serv
11492 1153 113 12 Cable One
6478 1131 328 137 AT&T Worldnet Services
6197 1031 718 508 BellSouth Network Solutions,
18566 1028 288 9 Covad Communications
174 967 6779 845 Cogent Communications
7011 944 287 559 Citizens Utilities
701 872 6573 680 UUNET Technologies, Inc.
20115 830 762 441 Charter Communications
1239 803 2720 563 Sprint
19262 780 2766 189 Verizon Global Networks
22773 777 2149 52 Cox Communications, Inc.
209 740 3818 584 Qwest
3356 674 10820 373 Level 3 Communications, LLC
5668 656 176 23 CenturyTel Internet Holdings,
6517 587 165 36 Yipes Communications, Inc.
852 584 1095 361 Telus Advanced Communications
15270 581 161 39 PaeTec.net -a division of Pae
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 491 1921 393 UUNET - Commercial IP service
24863 371 58 37 LINKdotNET AS number
9116 349 168 27 Goldenlines main autonomous s
3301 317 1457 294 TeliaNet Sweden
3320 313 6035 260 Deutsche Telekom AG
8551 296 284 38 Bezeq International
6746 290 131 266 Dynamic Network Technologies,
680 269 2045 257 DFN-IP service G-WiN
8866 265 62 22 Bulgarian Telecommunication C
8708 263 421 242 Romania Data Systems S.A.
3215 262 2472 99 France Telecom Transpac
8220 254 444 237 COLT Telecommunications
3352 230 1882 40 Ibernet, Internet Access Netw
5089 224 1658 54 NTL Group Limited
3269 223 2839 73 TELECOM ITALIA
9121 217 1442 25 TTnet Autonomous System
3300 197 172 96 AUCS Communications Services
3292 196 1380 176 TDC Tele Danmark
1257 194 1195 171 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 1023 2156 215 UniNet S.A. de C.V.
11830 514 299 9 Instituto Costarricense de El
16814 426 26 9 NSS, S.A.
11172 378 114 60 Servicios Alestra S.A de C.V
7303 351 166 51 Telecom Argentina Stet-France
14522 345 29 8 SatNet S.A.
6471 339 75 35 ENTEL CHILE S.A.
22047 317 246 13 VTR PUNTO NET S.A.
14117 287 19 15 Telefonica del Sur S.A.
11664 279 30 13 Keytech SA
10481 261 104 9 Prima S.A.
10620 238 66 24 TVCABLE BOGOTA
11556 237 128 4 Cable-Wireless Panama
6147 229 178 24 Telefonica Del Peru
6503 202 170 82 AVANTEL, S.A.
23216 197 17 45 RAMtelecom Telecomunicaciones
20299 178 25 30 NEWCOM AMERICAS
8163 177 11 6 METROTEL REDES S.A.
19169 176 12 19 Telconet
21826 173 31 59 INTERCABLE
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 277 869 225 The Internet Solution
8452 216 188 7 TEDATA
6713 142 135 11 Itissalat Al-MAGHRIB
2018 140 299 115 Tertiary Education Network
33783 125 8 12 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 76 84 4 Nile Online
2905 75 174 72 The Internetworking Company o
23889 73 24 15 MAURITIUS TELECOM
15706 56 12 4 Sudatel Internet Exchange Aut
33774 47 29 25 AS Number for Telecom Algeria
5713 46 294 36 Telkom SA Ltd
16637 42 21 29 Johnnic e-Ventures
12455 37 6 3 Jambonet Autonomous system
8524 32 2 10 AUCEGYPT Autonomous System
10798 27 16 1 Standard Bank of South Africa
29975 26 10 9 Vodacom
15804 24 2 1 AS of The Way Out Internet So
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1423 1356 Videsh Sanchar Nigam Ltd. Aut
11492 1153 1141 Cable One
4323 1401 1035 Time Warner Telecom
18566 1028 1019 Covad Communications
6478 1131 994 AT&T Worldnet Services
9498 1002 936 BHARTI BT INTERNET LTD.
8151 1023 808 UniNet S.A. de C.V.
4134 1098 799 CHINANET-BACKBONE
17488 816 755 Hathway IP Over Cable Interne
22773 777 725 Cox Communications, Inc.
9583 1128 717 Sify Limited
5668 656 633 CenturyTel Internet Holdings,
7545 732 613 TPG Internet Pty Ltd
19262 780 591 Verizon Global Networks
6517 587 551 Yipes Communications, Inc.
18101 600 550 Reliance Infocom Ltd Internet
15270 581 542 PaeTec.net -a division of Pae
6197 1031 523 BellSouth Network Solutions,
9829 530 521 BSNL National Internet Backbo
19916 568 517 OLM LLC
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
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
64520 PRIVATE 172.11.12.0/24 1803 SPRINT
65501 PRIVATE 202.153.21.0/24 23666 PT Sistelindo Mitral
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
101.13.13.0/24 8764 LIETUVOS-TELEKOMAS Autonomous
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
172.11.12.0/24 64520 PRIVATE ASN
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 /11:37 /12:136
/13:265 /14:476 /15:930 /16:9639 /17:4098 /18:6660
/19:14167 /20:16618 /21:15126 /22:19612 /23:20416 /24:122618
/25:766 /26:1036 /27:544 /28:89 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1145 1153 Cable One
6478 1130 1131 AT&T Worldnet Services
18566 1010 1028 Covad Communications
9583 970 1128 Sify Limited
2386 910 1219 AT&T Data Communications Serv
7011 834 944 Citizens Utilities
7018 820 1475 AT&T WorldNet Services
4755 796 1423 Videsh Sanchar Nigam Ltd. Aut
6197 784 1031 BellSouth Network Solutions,
23577 783 792 Korea Telecom (ATM-MPLS)
9498 681 1002 BHARTI BT INTERNET LTD.
17488 639 816 Hathway IP Over Cable Interne
4766 607 809 Korea Telecom (KIX)
4323 597 1401 Time Warner Telecom
19916 563 568 OLM LLC
6517 552 587 Yipes Communications, Inc.
15270 544 581 PaeTec.net -a division of Pae
5668 521 656 CenturyTel Internet Holdings,
4668 507 517 LG-EDS Systems Inc.
18101 503 600 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:82 12:1789 13:1 15:20 16:3
17:3 18:13 20:36 24:974 25:1 32:60
33:3 38:349 40:61 41:313 44:2 47:4
52:4 55:3 56:3 57:23 58:475 59:408
60:370 61:991 62:933 63:1992 64:3262 65:2367
66:3517 67:820 68:676 69:1973 70:457 71:107
72:1422 73:5 74:679 75:260 76:133 77:379
78:203 80:822 81:841 82:570 83:364 84:626
85:823 86:345 87:564 88:288 89:993 90:38
91:563 97:6 98:2 101:1 116:365 117:162
118:21 121:304 122:611 123:189 124:678 125:1008
128:272 129:213 130:137 131:364 132:54 133:9
134:198 135:34 136:188 137:82 138:156 139:74
140:512 141:174 142:398 143:254 144:313 145:47
146:334 147:128 148:422 149:187 150:111 151:157
152:89 153:118 154:11 155:255 156:162 157:220
158:160 159:175 160:135 161:99 162:172 163:182
164:487 165:395 166:287 167:302 168:503 169:124
170:387 171:22 172:3 189:74 190:1169 192:5718
193:3964 194:3202 195:2295 196:942 198:3825 199:3214
200:5299 201:1227 202:7367 203:7875 204:3918 205:1999
206:2410 207:2847 208:2874 209:3475 210:2465 211:1084
212:1291 213:1488 214:423 215:45 216:4072 217:1194
218:318 219:381 220:1012 221:414 222:263
End of report
