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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 23 Jun, 2006
Analysis Summary
----------------
BGP routing table entries examined: 191350
Prefixes after maximum aggregation: 105183
Unique aggregates announced to Internet: 92782
Total ASes present in the Internet Routing Table: 22509
Origin-only ASes present in the Internet Routing Table: 19582
Origin ASes announcing only one prefix: 9384
Transit ASes present in the Internet Routing Table: 2927
Transit-only ASes present in the Internet Routing Table: 64
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 24
Max AS path prepend of ASN (32609) 16
Prefixes from unregistered ASNs in the Routing Table: 2
Unregistered ASNs in the Routing Table: 3
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 9
Number of addresses announced to Internet: 1542973448
Equivalent to 91 /8s, 247 /16s and 232 /24s
Percentage of available address space announced: 41.6
Percentage of allocated address space announced: 60.2
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 94884
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 40917
Total APNIC prefixes after maximum aggregation: 16914
Prefixes being announced from the APNIC address blocks: 38644
Unique aggregates announced from the APNIC address blocks: 18488
APNIC Region origin ASes present in the Internet Routing Table: 2623
APNIC Region origin ASes announcing only one prefix: 756
APNIC Region transit ASes present in the Internet Routing Table: 396
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 234272864
Equivalent to 13 /8s, 246 /16s and 184 /24s
Percentage of available APNIC address space announced: 73.3
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: 98292
Total ARIN prefixes after maximum aggregation: 58060
Prefixes being announced from the ARIN address blocks: 72140
Unique aggregates announced from the ARIN address blocks: 26933
ARIN Region origin ASes present in the Internet Routing Table: 10790
ARIN Region origin ASes announcing only one prefix: 4067
ARIN Region transit ASes present in the Internet Routing Table: 988
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 294479872
Equivalent to 17 /8s, 141 /16s and 104 /24s
Percentage of available ARIN address space announced: 76.3
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: 38183
Total RIPE prefixes after maximum aggregation: 25563
Prefixes being announced from the RIPE address blocks: 35230
Unique aggregates announced from the RIPE address blocks: 23157
RIPE Region origin ASes present in the Internet Routing Table: 8176
RIPE Region origin ASes announcing only one prefix: 4286
RIPE Region transit ASes present in the Internet Routing Table: 1358
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 261025156
Equivalent to 15 /8s, 142 /16s and 237 /24s
Percentage of available RIPE address space announced: 81.9
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: 11696
Total LACNIC prefixes after maximum aggregation: 3746
Prefixes being announced from the LACNIC address blocks: 9817
Unique aggregates announced from the LACNIC address blocks: 5466
LACNIC Region origin ASes present in the Internet Routing Table: 698
LACNIC Region origin ASes announcing only one prefix: 231
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: 27702272
Equivalent to 1 /8s, 166 /16s and 180 /24s
Percentage of available LACNIC address space announced: 41.3
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: 2260
Total AfriNIC prefixes after maximum aggregation: 900
Prefixes being announced from the AfriNIC address blocks: 1515
Unique aggregates announced from the AfriNIC address blocks: 972
AfriNIC Region origin ASes present in the Internet Routing Table: 158
AfriNIC Region origin ASes announcing only one prefix: 44
AfriNIC Region transit ASes present in the Internet Routing Table: 25
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 11
Number of AfriNIC addresses announced to Internet: 4137216
Equivalent to 0 /8s, 63 /16s and 33 /24s
Percentage of available AfriNIC address space announced: 12.3
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 1238 7261 228 CHINANET-BACKBONE
4755 942 258 74 Videsh Sanchar Nigam Ltd. Aut
9583 909 109 16 Sify Limited
4766 688 4435 303 Korea Telecom (KIX)
9498 665 211 68 BHARTI BT INTERNET LTD.
1221 613 1668 471 Telstra Pty Ltd
7545 546 124 70 TPG Internet Pty Ltd
17488 515 32 19 Hathway IP Over Cable Interne
17676 489 7077 110 Softbank BB Corp.
9443 452 111 83 Primus Telecommunications
18101 416 85 24 Reliance Infocom Ltd Internet
17557 398 31 177 Pakistan Telecom
17974 384 129 14 PT TELEKOMUNIKASI INDONESIA
4802 382 81 169 Wantree Development
2907 335 1733 311 SINET Japan
9929 330 255 61 China Netcom Corp.
17849 303 23 103 Telecommunications Technology
7474 298 211 228 SingTel Optus Pty Ltd
10139 283 19 5 Meridian Telekoms
4837 277 3085 123 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1487 6264 952 AT&T WorldNet Services
4323 1318 744 262 Time Warner Telecom
721 1020 21998 313 DLA Systems Automation Center
6197 1012 630 475 BellSouth Network Solutions,
174 962 5771 899 Cogent Communications
19029 945 151 108 New Edge Networks
18566 944 272 8 Covad Communications
701 941 6754 779 UUNET Technologies, Inc.
2386 914 560 707 AT&T Data Communications Serv
1239 846 2788 598 Sprint
19262 714 2134 187 Verizon Global Networks
20115 714 619 382 Charter Communications
209 694 3683 548 Qwest
22773 665 1741 40 Cox Communications, Inc.
7011 651 218 414 Citizens Utilities
11492 633 87 23 Cable One
852 583 1084 382 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 553 244 64 Canadian Research Network
3602 525 125 104 Sprint Canada, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 568 1951 447 UUNET - Commercial IP service
3301 312 1327 297 TeliaNet Sweden
3352 306 1643 30 Ibernet, Internet Access Netw
3320 286 3989 240 Deutsche Telekom AG
8220 275 470 263 COLT Telecommunications
680 246 2041 243 DFN-IP service G-WiN
6746 236 89 211 Dynamic Network Technologies,
3246 229 462 219 Song Networks
8708 217 276 203 Romania Data Systems S.A.
24863 216 42 11 LINKdotNET AS number
3215 201 1720 96 France Telecom Transpac
3269 201 2182 72 TELECOM ITALIA
8551 201 198 24 Bezeq International
30890 198 18 75 SC Kappa Invexim SRL
1257 193 741 165 SWIPnet Swedish IP Network
8866 187 37 15 Bulgarian Telecommunication C
6830 175 813 37 UPC Distribution Services
786 169 1778 169 The JANET IP Service
3300 168 171 98 AUCS Communications Services
9121 162 931 28 TTnet Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 707 1099 221 UniNet S.A. de C.V.
22047 418 174 11 VTR PUNTO NET S.A.
11172 350 110 84 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
6147 267 134 22 Telefonica Del Peru
11664 227 26 14 Keytech SA
14117 207 13 7 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
7303 176 82 24 Telecom Argentina Stet-France
6503 171 151 84 AVANTEL, S.A.
21826 133 17 23 INTERCABLE
11556 132 80 4 Cable-Wireless Panama
19169 128 8 24 Telconet
14259 119 10 15 GTD Internet S.A.
19429 118 64 41 E.T.B.
14522 117 18 9 SatNet S.A.
23216 114 21 9 RAMtelecom Telecomunicaciones
6505 109 88 79 Global One Communicaoes Ltda
7910 105 7 10 ANDINET ON LINE
7738 104 410 20 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 286 803 234 The Internet Solution
8452 167 60 7 TEDATA
6713 154 135 11 Itissalat Al-MAGHRIB
2018 131 314 105 Tertiary Education Network
5536 124 8 15 Internet Egypt Network
24835 116 48 6 RAYA Telecom - Egypt
15475 110 84 4 Nile Online
33783 105 6 2 EEPAD TISP TELECOM & INTERNET
2905 73 155 66 The Internetworking Company o
20928 59 16 2 Noor Advanced Technologies AS
15706 44 8 3 Sudatel Internet Exchange Aut
5713 39 294 35 Telkom SA Ltd
33774 31 7 21 AS Number for Telecom Algeria
12455 25 6 3 Jambonet Autonomous system
16637 24 14 22 Johnnic e-Ventures
8524 22 1 5 AUCEGYPT Autonomous System
10798 22 1 13 Standard Bank of South Africa
23889 22 8 11 MAURITIUS TELECOM
33766 21 2 1 Nyala Communications Pty Ltd
21491 20 17 2 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1318 1056 Time Warner Telecom
4134 1238 1010 CHINANET-BACKBONE
18566 944 936 Covad Communications
9583 909 893 Sify Limited
4755 942 868 Videsh Sanchar Nigam Ltd. Aut
19029 945 837 New Edge Networks
721 1020 707 DLA Systems Automation Center
22773 665 625 Cox Communications, Inc.
11492 633 610 Cable One
9498 665 597 BHARTI BT INTERNET LTD.
6197 1012 537 BellSouth Network Solutions,
19262 714 527 Verizon Global Networks
19916 563 509 OLM LLC
5668 523 500 CenturyTel Internet Holdings,
17488 515 496 Hathway IP Over Cable Interne
855 553 489 Canadian Research Network
8151 707 486 UniNet S.A. de C.V.
7545 546 476 TPG Internet Pty Ltd
3602 525 421 Sprint Canada, Inc.
22047 418 407 VTR PUNTO NET S.A.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65128 PRIVATE 193.110.50.0/24 24652 Juniper Networks, Eu
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
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
183.206.196.0/24 2188 FR-RENATER-ASTER
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
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 /10:10 /11:28 /12:93
/13:201 /14:363 /15:710 /16:8859 /17:3260 /18:5392
/19:11776 /20:13311 /21:11661 /22:14852 /23:15981 /24:103743
/25:386 /26:288 /27:182 /28:63 /29:74 /30:49
/31:0 /32:41
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 927 944 Covad Communications
19029 876 945 New Edge Networks
6197 794 1012 BellSouth Network Solutions,
7018 788 1487 AT&T WorldNet Services
9583 739 909 Sify Limited
4323 643 1318 Time Warner Telecom
2386 633 914 AT&T Data Communications Serv
11492 624 633 Cable One
7011 560 651 Citizens Utilities
19916 557 563 OLM LLC
4766 499 688 Korea Telecom (KIX)
855 427 553 Canadian Research Network
15270 407 438 PaeTec.net -a division of Pae
5668 406 523 CenturyTel Internet Holdings,
1239 390 846 Sprint
4755 372 942 Videsh Sanchar Nigam Ltd. Aut
9498 372 665 BHARTI BT INTERNET LTD.
6517 364 395 Yipes Communications, Inc.
6198 353 510 BellSouth Network Solutions,
702 352 568 UUNET - Commercial IP service
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:42 12:1613 13:1 15:16 16:3
17:3 18:4 20:41 24:759 25:1 32:58
38:231 40:54 41:3 44:3 47:6 52:4
55:1 56:3 57:26 58:181 59:232 60:188
61:859 62:813 63:1894 64:3194 65:2195 66:3127
67:618 68:670 69:1525 70:397 71:82 72:777
74:46 80:765 81:645 82:627 83:390 84:373
85:560 86:347 87:366 88:105 89:280 121:1
122:2 123:1 124:290 125:524 128:159 129:189
130:118 131:317 132:33 133:8 134:159 135:48
136:171 137:82 138:206 139:56 140:468 141:134
142:380 143:168 144:222 145:39 146:319 147:137
148:340 149:188 150:114 151:93 152:69 153:106
154:5 155:204 156:182 157:146 158:168 159:171
160:91 161:78 162:244 163:159 164:182 165:211
166:172 167:245 168:493 169:128 170:349 171:14
183:1 190:96 192:5736 193:3353 194:2642 195:1930
196:850 198:3966 199:3230 200:4606 201:943 202:6660
203:7009 204:3902 205:2033 206:2424 207:2915 208:2143
209:3764 210:1994 211:697 212:1256 213:1476 214:362
215:41 216:4219 217:1169 218:295 219:234 220:717
221:371 222:189
End of report
