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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 22 Jun, 2006
Analysis Summary
----------------
BGP routing table entries examined: 191300
Prefixes after maximum aggregation: 105147
Unique aggregates announced to Internet: 91947
Total ASes present in the Internet Routing Table: 22505
Origin-only ASes present in the Internet Routing Table: 19580
Origin ASes announcing only one prefix: 9396
Transit ASes present in the Internet Routing Table: 2925
Transit-only ASes present in the Internet Routing Table: 61
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: 1542591208
Equivalent to 91 /8s, 242 /16s and 18 /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: 94931
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 40964
Total APNIC prefixes after maximum aggregation: 16931
Prefixes being announced from the APNIC address blocks: 38687
Unique aggregates announced from the APNIC address blocks: 17648
APNIC Region origin ASes present in the Internet Routing Table: 2624
APNIC Region origin ASes announcing only one prefix: 756
APNIC Region transit ASes present in the Internet Routing Table: 397
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 234079584
Equivalent to 13 /8s, 243 /16s and 197 /24s
Percentage of available APNIC address space announced: 73.2
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: 98305
Total ARIN prefixes after maximum aggregation: 58043
Prefixes being announced from the ARIN address blocks: 72165
Unique aggregates announced from the ARIN address blocks: 26920
ARIN Region origin ASes present in the Internet Routing Table: 10786
ARIN Region origin ASes announcing only one prefix: 4066
ARIN Region transit ASes present in the Internet Routing Table: 986
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 294396672
Equivalent to 17 /8s, 140 /16s and 35 /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: 38207
Total RIPE prefixes after maximum aggregation: 25548
Prefixes being announced from the RIPE address blocks: 35269
Unique aggregates announced from the RIPE address blocks: 23118
RIPE Region origin ASes present in the Internet Routing Table: 8179
RIPE Region origin ASes announcing only one prefix: 4299
RIPE Region transit ASes present in the Internet Routing Table: 1359
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 260870788
Equivalent to 15 /8s, 140 /16s and 146 /24s
Percentage of available RIPE address space announced: 81.8
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: 11550
Total LACNIC prefixes after maximum aggregation: 3726
Prefixes being announced from the LACNIC address blocks: 9702
Unique aggregates announced from the LACNIC address blocks: 5528
LACNIC Region origin ASes present in the Internet Routing Table: 698
LACNIC Region origin ASes announcing only one prefix: 232
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: 27694080
Equivalent to 1 /8s, 166 /16s and 148 /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: 2272
Total AfriNIC prefixes after maximum aggregation: 899
Prefixes being announced from the AfriNIC address blocks: 1520
Unique aggregates announced from the AfriNIC address blocks: 965
AfriNIC Region origin ASes present in the Internet Routing Table: 157
AfriNIC Region origin ASes announcing only one prefix: 43
AfriNIC Region transit ASes present in the Internet Routing Table: 26
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 1237 7261 229 CHINANET-BACKBONE
4755 937 258 74 Videsh Sanchar Nigam Ltd. Aut
9583 908 109 16 Sify Limited
4766 687 4435 302 Korea Telecom (KIX)
9498 665 211 68 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 488 7061 109 Softbank BB Corp.
9443 450 110 81 Primus Telecommunications
18101 414 85 24 Reliance Infocom Ltd Internet
17557 399 31 178 Pakistan Telecom
17974 383 129 14 PT TELEKOMUNIKASI INDONESIA
4802 382 81 169 Wantree Development
9929 340 255 61 China Netcom Corp.
2907 335 1733 311 SINET Japan
17849 303 23 103 Telecommunications Technology
7474 298 211 228 SingTel Optus Pty Ltd
4837 286 3061 126 chinanet IDC center beijing n
10139 282 19 5 Meridian Telekoms
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1486 6264 951 AT&T WorldNet Services
4323 1318 744 262 Time Warner Telecom
721 1016 21998 314 DLA Systems Automation Center
6197 1013 630 475 BellSouth Network Solutions,
174 964 5787 901 Cogent Communications
19029 945 151 108 New Edge Networks
18566 943 272 8 Covad Communications
701 942 6754 780 UUNET Technologies, Inc.
2386 913 560 706 AT&T Data Communications Serv
1239 850 2788 602 Sprint
20115 714 617 382 Charter Communications
19262 713 2133 186 Verizon Global Networks
209 695 3685 549 Qwest
22773 666 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
855 552 244 64 Canadian Research Network
5668 529 147 23 CenturyTel Internet Holdings,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 571 1951 450 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 234 498 224 Song Networks
8708 217 276 203 Romania Data Systems S.A.
24863 216 42 11 LINKdotNET AS number
3269 201 2182 72 TELECOM ITALIA
8551 201 198 24 Bezeq International
3215 199 1688 94 France Telecom Transpac
30890 198 18 75 SC Kappa Invexim SRL
1257 194 741 166 SWIPnet Swedish IP Network
8866 187 37 15 Bulgarian Telecommunication C
6830 175 813 37 UPC Distribution Services
786 171 1778 171 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 707 1099 222 UniNet S.A. de C.V.
22047 418 174 11 VTR PUNTO NET S.A.
11172 349 110 83 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
6147 267 134 22 Telefonica Del Peru
14117 207 13 7 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
7303 175 81 25 Telecom Argentina Stet-France
6503 134 151 81 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 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
5639 103 12 9 Telecommunications Services o
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 286 803 234 The Internet Solution
8452 166 60 7 TEDATA
6713 154 135 11 Itissalat Al-MAGHRIB
2018 131 314 105 Tertiary Education Network
5536 124 8 15 Internet Egypt Network
15475 120 84 4 Nile Online
24835 116 48 6 RAYA Telecom - Egypt
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 1237 1008 CHINANET-BACKBONE
18566 943 935 Covad Communications
9583 908 892 Sify Limited
4755 937 863 Videsh Sanchar Nigam Ltd. Aut
19029 945 837 New Edge Networks
721 1016 702 DLA Systems Automation Center
22773 666 626 Cox Communications, Inc.
11492 633 610 Cable One
9498 665 597 BHARTI BT INTERNET LTD.
6197 1013 538 BellSouth Network Solutions,
19262 713 527 Verizon Global Networks
19916 563 509 OLM LLC
17488 519 509 Hathway IP Over Cable Interne
5668 529 506 CenturyTel Internet Holdings,
855 552 488 Canadian Research Network
8151 707 485 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 /8:19 /9:9 /10:10 /11:28 /12:93
/13:201 /14:361 /15:711 /16:8862 /17:3265 /18:5390
/19:11773 /20:13315 /21:11635 /22:14876 /23:15965 /24:103708
/25:384 /26:288 /27:179 /28:63 /29:74 /30:51
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 926 943 Covad Communications
19029 876 945 New Edge Networks
6197 795 1013 BellSouth Network Solutions,
7018 788 1486 AT&T WorldNet Services
9583 738 908 Sify Limited
4323 642 1318 Time Warner Telecom
2386 632 913 AT&T Data Communications Serv
11492 624 633 Cable One
7011 560 651 Citizens Utilities
19916 557 563 OLM LLC
4766 499 687 Korea Telecom (KIX)
855 426 552 Canadian Research Network
5668 412 529 CenturyTel Internet Holdings,
15270 407 438 PaeTec.net -a division of Pae
1239 394 850 Sprint
9498 372 665 BHARTI BT INTERNET LTD.
4755 369 937 Videsh Sanchar Nigam Ltd. Aut
6517 364 395 Yipes Communications, Inc.
702 355 571 UUNET - Commercial IP service
6198 353 510 BellSouth Network Solutions,
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 24:762 25:1 32:58
38:232 40:54 41:3 44:3 47:6 52:4
55:1 56:3 57:26 58:190 59:231 60:186
61:857 62:827 63:1894 64:3191 65:2195 66:3124
67:618 68:667 69:1524 70:397 71:82 72:775
74:46 80:778 81:647 82:600 83:394 84:375
85:557 86:385 87:366 88:108 89:271 121:1
122:2 123:1 124:279 125:525 128:159 129:189
130:118 131:317 132:33 133:8 134:156 135:48
136:170 137:81 138:206 139:56 140:468 141:134
142:380 143:167 144:223 145:39 146:319 147:137
148:318 149:188 150:114 151:93 152:69 153:106
154:5 155:204 156:181 157:146 158:169 159:172
160:91 161:77 162:244 163:153 164:182 165:211
166:171 167:246 168:493 169:128 170:349 171:14
183:1 190:78 192:5737 193:3356 194:2639 195:1924
196:856 198:3964 199:3227 200:4454 201:1007 202:6688
203:7029 204:3904 205:2045 206:2422 207:2909 208:2141
209:3778 210:1990 211:696 212:1262 213:1477 214:357
215:41 216:4251 217:1168 218:294 219:233 220:720
221:361 222:189
End of report
