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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 04 Aug, 2006
Analysis Summary
----------------
BGP routing table entries examined: 194065
Prefixes after maximum aggregation: 106738
Unique aggregates announced to Internet: 94911
Total ASes present in the Internet Routing Table: 22797
Origin-only ASes present in the Internet Routing Table: 19838
Origin ASes announcing only one prefix: 9494
Transit ASes present in the Internet Routing Table: 2959
Transit-only ASes present in the Internet Routing Table: 68
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 24
Max AS path prepend of ASN (24076) 20
Prefixes from unregistered ASNs in the Routing Table: 22
Unregistered ASNs in the Routing Table: 3
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 9
Number of addresses announced to Internet: 1560935084
Equivalent to 93 /8s, 9 /16s and 250 /24s
Percentage of available address space announced: 42.1
Percentage of allocated address space announced: 60.9
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 96288
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 42419
Total APNIC prefixes after maximum aggregation: 17492
Prefixes being announced from the APNIC address blocks: 40125
Unique aggregates announced from the APNIC address blocks: 18721
APNIC Region origin ASes present in the Internet Routing Table: 2666
APNIC Region origin ASes announcing only one prefix: 754
APNIC Region transit ASes present in the Internet Routing Table: 398
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 24
Number of APNIC addresses announced to Internet: 244107104
Equivalent to 14 /8s, 140 /16s and 199 /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, 121/8, 122/7, 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: 98335
Total ARIN prefixes after maximum aggregation: 58499
Prefixes being announced from the ARIN address blocks: 72116
Unique aggregates announced from the ARIN address blocks: 27228
ARIN Region origin ASes present in the Internet Routing Table: 10856
ARIN Region origin ASes announcing only one prefix: 4086
ARIN Region transit ASes present in the Internet Routing Table: 1011
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 298723584
Equivalent to 17 /8s, 206 /16s and 41 /24s
Percentage of available ARIN address space announced: 77.4
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, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 38967
Total RIPE prefixes after maximum aggregation: 26106
Prefixes being announced from the RIPE address blocks: 35939
Unique aggregates announced from the RIPE address blocks: 24252
RIPE Region origin ASes present in the Internet Routing Table: 8334
RIPE Region origin ASes announcing only one prefix: 4373
RIPE Region transit ASes present in the Internet Routing Table: 1368
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 261238596
Equivalent to 15 /8s, 146 /16s and 47 /24s
Percentage of available RIPE address space announced: 82.0
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
40960-41983
RIPE Address Blocks 62/8, 80/5, 88/6, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 12084
Total LACNIC prefixes after maximum aggregation: 3729
Prefixes being announced from the LACNIC address blocks: 10164
Unique aggregates announced from the LACNIC address blocks: 5793
LACNIC Region origin ASes present in the Internet Routing Table: 714
LACNIC Region origin ASes announcing only one prefix: 237
LACNIC Region transit ASes present in the Internet Routing Table: 130
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 31361280
Equivalent to 1 /8s, 222 /16s and 137 /24s
Percentage of available LACNIC address space announced: 46.7
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: 2238
Total AfriNIC prefixes after maximum aggregation: 912
Prefixes being announced from the AfriNIC address blocks: 1548
Unique aggregates announced from the AfriNIC address blocks: 973
AfriNIC Region origin ASes present in the Internet Routing Table: 159
AfriNIC Region origin ASes announcing only one prefix: 44
AfriNIC Region transit ASes present in the Internet Routing Table: 24
Average AfriNIC Region AS path length visible: 3.5
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 4200704
Equivalent to 0 /8s, 64 /16s and 25 /24s
Percentage of available AfriNIC address space announced: 12.5
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 1288 7914 238 CHINANET-BACKBONE
4755 957 255 69 Videsh Sanchar Nigam Ltd. Aut
9583 942 109 15 Sify Limited
9498 762 211 70 BHARTI BT INTERNET LTD.
4766 700 4435 303 Korea Telecom (KIX)
1221 608 1779 465 Telstra Pty Ltd
7545 550 124 71 TPG Internet Pty Ltd
17488 520 32 18 Hathway IP Over Cable Interne
17676 490 7093 110 Softbank BB Corp.
9443 449 111 83 Primus Telecommunications
18101 433 85 22 Reliance Infocom Ltd Internet
4812 416 740 61 China Telecom (Shanghai)
17849 410 30 122 Telecommunications Technology
4802 378 81 167 Wantree Development
17557 378 30 177 Pakistan Telecom
17974 365 129 14 PT TELEKOMUNIKASI INDONESIA
2907 336 1733 311 SINET Japan
4837 305 3458 135 chinanet IDC center beijing n
7474 294 211 228 SingTel Optus Pty Ltd
10139 274 23 6 Meridian Telekoms
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1488 6256 955 AT&T WorldNet Services
6197 1018 635 477 BellSouth Network Solutions,
721 1010 21926 312 DLA Systems Automation Center
4323 965 746 274 Time Warner Telecom
701 963 6769 789 UUNET Technologies, Inc.
18566 951 272 8 Covad Communications
174 939 5769 888 Cogent Communications
2386 917 559 705 AT&T Data Communications Serv
1239 854 2783 604 Sprint
19262 728 2228 187 Verizon Global Networks
20115 724 627 378 Charter Communications
11492 721 89 15 Cable One
209 693 3660 541 Qwest
22773 682 1741 41 Cox Communications, Inc.
7011 658 219 416 Citizens Utilities
6198 599 556 237 BellSouth Network Solutions,
852 581 1068 381 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 551 247 74 Canadian Research Network
5668 540 147 23 CenturyTel Internet Holdings,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 561 1932 441 UUNET - Commercial IP service
3301 316 1187 301 TeliaNet Sweden
3320 294 5013 238 Deutsche Telekom AG
8220 281 471 267 COLT Telecommunications
680 246 2041 243 DFN-IP service G-WiN
6746 241 90 219 Dynamic Network Technologies,
24863 239 42 11 LINKdotNET AS number
3246 230 462 220 Song Networks
8708 215 278 203 Romania Data Systems S.A.
3215 204 1760 97 France Telecom Transpac
3269 203 2246 73 TELECOM ITALIA
8551 202 182 27 Bezeq International
30890 201 19 84 SC Kappa Invexim SRL
1257 195 742 167 SWIPnet Swedish IP Network
8866 188 37 15 Bulgarian Telecommunication C
5416 179 12 11 BATELCO-BH
6830 177 813 37 UPC Distribution Services
3300 171 171 98 AUCS Communications Services
786 170 1778 170 The JANET IP Service
9121 167 931 31 TTnet Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 777 1786 231 UniNet S.A. de C.V.
22047 425 206 11 VTR PUNTO NET S.A.
11172 360 113 86 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
6147 273 134 22 Telefonica Del Peru
6471 255 74 30 ENTEL CHILE S.A.
14117 217 13 7 Telefonica del Sur S.A.
6503 182 151 83 AVANTEL, S.A.
7303 181 84 29 Telecom Argentina Stet-France
10481 181 72 8 Prima S.A.
21826 133 17 22 INTERCABLE
11556 132 80 4 Cable-Wireless Panama
19429 131 84 45 E.T.B.
19169 128 8 25 Telconet
14522 123 18 9 SatNet S.A.
7910 120 8 20 ANDINET ON LINE
14259 119 10 15 GTD Internet S.A.
18822 114 7 9 TELEFONICA MANQUEHUE
23216 113 21 9 RAMtelecom Telecomunicaciones
7738 111 410 20 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 284 803 231 The Internet Solution
8452 170 60 7 TEDATA
6713 144 135 11 Itissalat Al-MAGHRIB
2018 134 298 111 Tertiary Education Network
15475 133 84 4 Nile Online
5536 121 8 18 Internet Egypt Network
24835 116 48 6 RAYA Telecom - Egypt
33783 106 6 2 EEPAD TISP TELECOM & INTERNET
2905 79 159 70 The Internetworking Company o
15706 44 8 3 Sudatel Internet Exchange Aut
5713 39 294 35 Telkom SA Ltd
33774 30 7 21 AS Number for Telecom Algeria
16637 25 18 23 Johnnic e-Ventures
23889 24 8 11 MAURITIUS TELECOM
10798 23 1 14 Standard Bank of South Africa
8524 22 1 5 AUCEGYPT Autonomous System
21280 21 4 4 Swift Global Kenya Ltd.Is an
33766 21 2 1 Nyala Communications Pty Ltd
21491 20 17 2 UTL On-line is RF broadband I
2561 19 6 2 Egyptian Universities Network
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4134 1288 1050 CHINANET-BACKBONE
18566 951 943 Covad Communications
9583 942 927 Sify Limited
4755 957 888 Videsh Sanchar Nigam Ltd. Aut
11492 721 706 Cable One
721 1010 698 DLA Systems Automation Center
9498 762 692 BHARTI BT INTERNET LTD.
4323 965 691 Time Warner Telecom
22773 682 641 Cox Communications, Inc.
8151 777 546 UniNet S.A. de C.V.
6197 1018 541 BellSouth Network Solutions,
19262 728 541 Verizon Global Networks
5668 540 517 CenturyTel Internet Holdings,
19916 563 509 OLM LLC
17488 520 502 Hathway IP Over Cable Interne
7545 550 479 TPG Internet Pty Ltd
855 551 477 Canadian Research Network
15270 454 421 PaeTec.net -a division of Pae
3602 522 417 Sprint Canada, Inc.
22047 425 414 VTR PUNTO NET S.A.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65350 PRIVATE 124.236.240.0/20 17672 asn for Hebei Provin
65128 PRIVATE 193.110.50.0/24 24652 Juniper Networks, Eu
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
65350 PRIVATE 219.148.0.0/22 17672 asn for Hebei Provin
65350 PRIVATE 219.148.4.0/23 17672 asn for Hebei Provin
65350 PRIVATE 219.148.8.0/21 17672 asn for Hebei Provin
65350 PRIVATE 219.148.24.0/21 17672 asn for Hebei Provin
65350 PRIVATE 219.148.32.0/19 17672 asn for Hebei Provin
65350 PRIVATE 222.222.0.0/21 17672 asn for Hebei Provin
65350 PRIVATE 222.222.8.0/21 17672 asn for Hebei Provin
65350 PRIVATE 222.222.16.0/20 17672 asn for Hebei Provin
65350 PRIVATE 222.222.32.0/20 17672 asn for Hebei Provin
65350 PRIVATE 222.222.48.0/20 17672 asn for Hebei Provin
65350 PRIVATE 222.222.208.0/21 17672 asn for Hebei Provin
65350 PRIVATE 222.222.216.0/21 17672 asn for Hebei Provin
65350 PRIVATE 222.223.187.0/24 17672 asn for Hebei Provin
65350 PRIVATE 222.223.188.0/22 17672 asn for Hebei Provin
65350 PRIVATE 222.223.192.0/22 17672 asn for Hebei Provin
65350 PRIVATE 222.223.196.0/23 17672 asn for Hebei Provin
65350 PRIVATE 222.223.200.0/22 17672 asn for Hebei Provin
65350 PRIVATE 222.223.206.0/23 17672 asn for Hebei Provin
65350 PRIVATE 222.223.224.0/19 17672 asn for Hebei Provin
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
198.18.1.0/24 3301 TeliaNet Sweden
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
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
192.84.205.0/24 719 LANLINK autonomous system
192.172.0.0/19 721 DLA Systems Automation Center
192.249.0.0/20 3450 University of Tennessee, Knox
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:17 /9:9 /10:11 /11:28 /12:97
/13:205 /14:374 /15:732 /16:8943 /17:3398 /18:5531
/19:12009 /20:13586 /21:11852 /22:15034 /23:16247 /24:104889
/25:378 /26:296 /27:198 /28:66 /29:38 /30:81
/31:0 /32:46
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 934 951 Covad Communications
6197 798 1018 BellSouth Network Solutions,
7018 785 1488 AT&T WorldNet Services
9583 773 942 Sify Limited
11492 709 721 Cable One
2386 635 917 AT&T Data Communications Serv
7011 565 658 Citizens Utilities
19916 557 563 OLM LLC
4766 511 700 Korea Telecom (KIX)
9498 444 762 BHARTI BT INTERNET LTD.
6198 442 599 BellSouth Network Solutions,
855 425 551 Canadian Research Network
5668 423 540 CenturyTel Internet Holdings,
15270 423 454 PaeTec.net -a division of Pae
1239 402 854 Sprint
4755 399 957 Videsh Sanchar Nigam Ltd. Aut
17849 397 410 Telecommunications Technology
6517 381 414 Yipes Communications, Inc.
18101 369 433 Reliance Infocom Ltd Internet
22773 360 682 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:50 12:1598 13:1 15:15 16:3
17:3 18:4 20:41 24:805 25:1 32:58
38:240 40:53 41:10 44:3 45:8 47:6
52:4 55:1 56:3 57:26 58:206 59:248
60:193 61:916 62:826 63:1890 64:3090 65:2254
66:2974 67:629 68:678 69:1564 70:395 71:87
72:868 74:63 75:2 80:753 81:672 82:637
83:402 84:397 85:570 86:399 87:455 88:141
89:373 91:1 121:13 122:3 123:1 124:345
125:574 128:153 129:188 130:118 131:317 132:34
133:8 134:160 135:49 136:178 137:85 138:213
139:46 140:491 141:137 142:370 143:186 144:240
145:40 146:317 147:140 148:352 149:188 150:114
151:97 152:70 153:117 154:5 155:213 156:179
157:139 158:167 159:172 160:93 161:77 162:246
163:164 164:236 165:222 166:182 167:244 168:483
169:125 170:354 171:14 190:98 192:5736 193:3404
194:2690 195:2012 196:862 198:3905 199:3295 200:4640
201:1044 202:6769 203:7053 204:3905 205:2030 206:2427
207:2929 208:2215 209:3436 210:2160 211:830 212:1247
213:1426 214:361 215:41 216:4032 217:1151 218:319
219:250 220:743 221:377 222:218
End of report
