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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 25 Jun, 2006
Analysis Summary
----------------
BGP routing table entries examined: 191578
Prefixes after maximum aggregation: 105128
Unique aggregates announced to Internet: 92829
Total ASes present in the Internet Routing Table: 22516
Origin-only ASes present in the Internet Routing Table: 19589
Origin ASes announcing only one prefix: 9395
Transit ASes present in the Internet Routing Table: 2927
Transit-only ASes present in the Internet Routing Table: 66
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: 1543338888
Equivalent to 91 /8s, 253 /16s and 123 /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: 95094
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 40928
Total APNIC prefixes after maximum aggregation: 16890
Prefixes being announced from the APNIC address blocks: 38649
Unique aggregates announced from the APNIC address blocks: 18481
APNIC Region origin ASes present in the Internet Routing Table: 2619
APNIC Region origin ASes announcing only one prefix: 752
APNIC Region transit ASes present in the Internet Routing Table: 399
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 234418656
Equivalent to 13 /8s, 248 /16s and 241 /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: 98349
Total ARIN prefixes after maximum aggregation: 58026
Prefixes being announced from the ARIN address blocks: 72187
Unique aggregates announced from the ARIN address blocks: 26938
ARIN Region origin ASes present in the Internet Routing Table: 10794
ARIN Region origin ASes announcing only one prefix: 4080
ARIN Region transit ASes present in the Internet Routing Table: 987
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 294583808
Equivalent to 17 /8s, 142 /16s and 254 /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: 38264
Total RIPE prefixes after maximum aggregation: 25568
Prefixes being announced from the RIPE address blocks: 35314
Unique aggregates announced from the RIPE address blocks: 23165
RIPE Region origin ASes present in the Internet Routing Table: 8176
RIPE Region origin ASes announcing only one prefix: 4283
RIPE Region transit ASes present in the Internet Routing Table: 1355
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 261020804
Equivalent to 15 /8s, 142 /16s and 220 /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: 11774
Total LACNIC prefixes after maximum aggregation: 3745
Prefixes being announced from the LACNIC address blocks: 9906
Unique aggregates announced from the LACNIC address blocks: 5548
LACNIC Region origin ASes present in the Internet Routing Table: 703
LACNIC Region origin ASes announcing only one prefix: 235
LACNIC Region transit ASes present in the Internet Routing Table: 132
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 27770624
Equivalent to 1 /8s, 167 /16s and 191 /24s
Percentage of available LACNIC address space announced: 41.4
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: 2261
Total AfriNIC prefixes after maximum aggregation: 899
Prefixes being announced from the AfriNIC address blocks: 1517
Unique aggregates announced from the AfriNIC address blocks: 948
AfriNIC Region origin ASes present in the Internet Routing Table: 158
AfriNIC Region origin ASes announcing only one prefix: 45
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: 4139008
Equivalent to 0 /8s, 63 /16s and 40 /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 943 258 74 Videsh Sanchar Nigam Ltd. Aut
9583 908 109 15 Sify Limited
4766 687 4435 302 Korea Telecom (KIX)
9498 675 211 67 BHARTI BT INTERNET LTD.
1221 614 1668 472 Telstra Pty Ltd
7545 546 124 70 TPG Internet Pty Ltd
17488 519 32 10 Hathway IP Over Cable Interne
17676 489 7077 110 Softbank BB Corp.
9443 452 111 83 Primus Telecommunications
18101 419 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 327 254 61 China Netcom Corp.
17849 303 23 103 Telecommunications Technology
7474 297 211 227 SingTel Optus Pty Ltd
10139 282 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 1485 6262 950 AT&T WorldNet Services
4323 1318 744 263 Time Warner Telecom
721 1019 21998 314 DLA Systems Automation Center
6197 1011 630 480 BellSouth Network Solutions,
174 960 5771 897 Cogent Communications
18566 945 272 8 Covad Communications
19029 944 151 107 New Edge Networks
701 939 6753 777 UUNET Technologies, Inc.
2386 913 560 706 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 668 1741 40 Cox Communications, Inc.
7011 647 217 411 Citizens Utilities
11492 639 87 23 Cable One
852 579 1083 378 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 553 244 64 Canadian Research Network
3602 526 125 104 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 304 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 238 90 213 Dynamic Network Technologies,
3246 229 462 219 Song Networks
8708 217 276 203 Romania Data Systems S.A.
24863 215 42 10 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
9121 169 931 28 TTnet Autonomous System
3300 168 171 98 AUCS Communications Services
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 704 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 328 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 173 151 84 AVANTEL, S.A.
21826 133 17 23 INTERCABLE
11556 132 80 4 Cable-Wireless Panama
19169 128 8 24 Telconet
19429 127 68 41 E.T.B.
14259 119 10 15 GTD Internet S.A.
14522 116 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 165 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 111 84 4 Nile Online
33783 105 6 2 EEPAD TISP TELECOM & INTERNET
2905 77 157 68 The Internetworking Company o
20928 60 16 3 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 1055 Time Warner Telecom
4134 1238 1010 CHINANET-BACKBONE
18566 945 937 Covad Communications
9583 908 893 Sify Limited
4755 943 869 Videsh Sanchar Nigam Ltd. Aut
19029 944 837 New Edge Networks
721 1019 705 DLA Systems Automation Center
22773 668 628 Cox Communications, Inc.
11492 639 616 Cable One
9498 675 608 BHARTI BT INTERNET LTD.
6197 1011 531 BellSouth Network Solutions,
19262 714 527 Verizon Global Networks
19916 563 509 OLM LLC
17488 519 509 Hathway IP Over Cable Interne
5668 525 502 CenturyTel Internet Holdings,
855 553 489 Canadian Research Network
8151 704 483 UniNet S.A. de C.V.
7545 546 476 TPG Internet Pty Ltd
3602 526 422 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 /15:713 /16:8870 /17:3258 /18:5391
/19:11770 /20:13301 /21:11654 /22:14838 /23:15964 /24:104014
/25:384 /26:289 /27:181 /28:65 /29:73 /30:51
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 928 945 Covad Communications
19029 876 944 New Edge Networks
6197 793 1011 BellSouth Network Solutions,
7018 788 1485 AT&T WorldNet Services
9583 738 908 Sify Limited
4323 642 1318 Time Warner Telecom
2386 633 913 AT&T Data Communications Serv
11492 630 639 Cable One
19916 557 563 OLM LLC
7011 556 647 Citizens Utilities
4766 499 687 Korea Telecom (KIX)
855 427 553 Canadian Research Network
5668 408 525 CenturyTel Internet Holdings,
15270 406 437 PaeTec.net -a division of Pae
1239 392 846 Sprint
9498 378 675 BHARTI BT INTERNET LTD.
4755 373 943 Videsh Sanchar Nigam Ltd. Aut
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 12:1614 13:1 15:16 16:3
17:3 18:4 20:41 24:765 25:1 32:58
38:229 40:54 41:3 44:3 47:6 52:4
55:1 56:3 57:26 58:178 59:237 60:181
61:860 62:814 63:1892 64:3194 65:2200 66:3130
67:619 68:684 69:1525 70:399 71:82 72:775
74:44 75:1 80:768 81:645 82:628 83:386
84:375 85:563 86:384 87:367 88:109 89:295
121:1 122:2 123:1 124:292 125:524 128:150
129:189 130:118 131:317 132:33 133:8 134:159
135:48 136:172 137:82 138:206 139:55 140:522
141:134 142:380 143:167 144:220 145:39 146:319
147:137 148:340 149:188 150:114 151:94 152:69
153:106 154:5 155:204 156:183 157:146 158:167
159:171 160:91 161:78 162:244 163:158 164:182
165:211 166:173 167:247 168:491 169:128 170:349
171:14 183:1 190:97 192:5729 193:3358 194:2643
195:1933 196:853 198:3954 199:3219 200:4626 201:1003
202:6693 203:7027 204:3909 205:2043 206:2426 207:2909
208:2158 209:3765 210:1992 211:697 212:1256 213:1478
214:362 215:40 216:4229 217:1166 218:295 219:232
220:713 221:370 222:189
End of report
