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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 25 Apr, 2006
Analysis Summary
----------------
BGP routing table entries examined: 187119
Prefixes after maximum aggregation: 103332
Unique aggregates announced to Internet: 91556
Total ASes present in the Internet Routing Table: 21988
Origin-only ASes present in the Internet Routing Table: 19127
Origin ASes announcing only one prefix: 9093
Transit ASes present in the Internet Routing Table: 2861
Transit-only ASes present in the Internet Routing Table: 60
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 25
Prefixes from unregistered ASNs in the Routing Table: 3
Unregistered ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1506477600
Equivalent to 89 /8s, 203 /16s and 6 /24s
Percentage of available address space announced: 40.6
Percentage of allocated address space announced: 60.0
Percentage of available address space allocated: 67.8
Total number of prefixes smaller than registry allocations: 92296
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 39330
Total APNIC prefixes after maximum aggregation: 16489
Prefixes being announced from the APNIC address blocks: 37023
Unique aggregates announced from the APNIC address blocks: 18220
APNIC Region origin ASes present in the Internet Routing Table: 2546
APNIC Region origin ASes announcing only one prefix: 715
APNIC Region transit ASes present in the Internet Routing Table: 393
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 222519008
Equivalent to 13 /8s, 67 /16s and 94 /24s
Percentage of available APNIC address space announced: 69.6
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: 97338
Total ARIN prefixes after maximum aggregation: 57479
Prefixes being announced from the ARIN address blocks: 76468
Unique aggregates announced from the ARIN address blocks: 29396
ARIN Region origin ASes present in the Internet Routing Table: 10649
ARIN Region origin ASes announcing only one prefix: 3989
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: 18
Number of ARIN addresses announced to Internet: 295834880
Equivalent to 17 /8s, 162 /16s and 21 /24s
Percentage of available ARIN address space announced: 73.5
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
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/6, 74/7, 76/8,
198/7, 204/6, 208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 37277
Total RIPE prefixes after maximum aggregation: 24880
Prefixes being announced from the RIPE address blocks: 34324
Unique aggregates announced from the RIPE address blocks: 23094
RIPE Region origin ASes present in the Internet Routing Table: 7902
RIPE Region origin ASes announcing only one prefix: 4122
RIPE Region transit ASes present in the Internet Routing Table: 1296
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 246020544
Equivalent to 14 /8s, 169 /16s and 249 /24s
Percentage of available RIPE address space announced: 73.3
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
RIPE Address Blocks 62/8, 80/5, 88/6, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 11036
Total LACNIC prefixes after maximum aggregation: 3595
Prefixes being announced from the LACNIC address blocks: 9165
Unique aggregates announced from the LACNIC address blocks: 5397
LACNIC Region origin ASes present in the Internet Routing Table: 680
LACNIC Region origin ASes announcing only one prefix: 221
LACNIC Region transit ASes present in the Internet Routing Table: 128
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 26509824
Equivalent to 1 /8s, 148 /16s and 130 /24s
Percentage of available LACNIC address space announced: 39.5
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: 2135
Total AfriNIC prefixes after maximum aggregation: 889
Prefixes being announced from the AfriNIC address blocks: 1439
Unique aggregates announced from the AfriNIC address blocks: 930
AfriNIC Region origin ASes present in the Internet Routing Table: 152
AfriNIC Region origin ASes announcing only one prefix: 46
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: 13
Number of AfriNIC addresses announced to Internet: 4039424
Equivalent to 0 /8s, 61 /16s and 163 /24s
Percentage of available AfriNIC address space announced: 12.0
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 1082 7067 216 CHINANET-BACKBONE
9583 890 109 16 Sify Limited
4755 767 257 67 Videsh Sanchar Nigam Ltd. Aut
4766 681 4436 304 Korea Telecom (KIX)
1221 621 1557 475 Telstra Pty Ltd
9498 570 212 72 BHARTI BT INTERNET LTD.
7545 526 108 69 TPG Internet Pty Ltd
17488 501 31 7 Hathway IP Over Cable Interne
17676 484 6997 107 Softbank BB Corp.
9443 450 110 81 Primus Telecommunications
4802 382 81 176 Wantree Development
17849 342 22 111 Telecommunications Technology
18101 340 69 18 Reliance Infocom Ltd Internet
2907 336 1749 312 SINET Japan
17557 325 27 158 Pakistan Telecom
9929 322 221 57 China Netcom Corp.
7474 300 211 230 SingTel Optus Pty Ltd
17974 291 120 26 PT TELEKOMUNIKASI INDONESIA
9800 272 410 67 CHINA UNICOM
9837 263 77 161 Powertel Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1508 6253 978 AT&T WorldNet Services
4323 1265 733 251 Time Warner Telecom
6197 1012 619 472 BellSouth Network Solutions,
721 1007 21945 304 DLA Systems Automation Center
174 961 5787 909 Cogent Communications
19029 954 151 111 New Edge Networks
701 935 8031 777 UUNET Technologies, Inc.
18566 935 272 8 Covad Communications
2386 878 537 670 AT&T Data Communications Serv
1239 847 2804 599 Sprint
209 718 3615 560 Qwest
19262 688 2000 162 Verizon Global Networks
20115 680 596 362 Charter Communications
22773 650 1735 42 Cox Communications, Inc.
7011 631 217 412 Citizens Utilities
11492 628 86 20 Cable One
6198 592 534 236 BellSouth Network Solutions,
852 583 1085 385 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 550 244 63 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 579 1951 455 UUNET - Commercial IP service
3352 309 1596 32 Ibernet, Internet Access Netw
3301 308 1071 292 TeliaNet Sweden
8220 291 474 269 COLT Telecommunications
3320 288 3989 238 Deutsche Telekom AG
680 245 2025 242 DFN-IP service G-WiN
3246 232 504 222 Song Networks
6746 228 89 202 Dynamic Network Technologies,
8708 218 276 201 Romania Data Systems S.A.
24863 207 40 9 LINKdotNET AS number
8551 202 198 24 Bezeq International
3215 196 1662 93 France Telecom Transpac
1257 195 710 170 SWIPnet Swedish IP Network
3269 195 2070 74 TELECOM ITALIA
8866 177 37 15 Bulgarian Telecommunication C
786 171 1778 171 The JANET IP Service
5400 171 363 140 BT Ignite European Backbone
9121 168 931 27 TTnet Autonomous System
6830 167 765 35 UPC Distribution Services
30890 163 15 61 SC Kappa Invexim SRL
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 699 1067 227 UniNet S.A. de C.V.
22047 408 158 11 VTR PUNTO NET S.A.
11172 322 110 84 Servicios Alestra S.A de C.V
16814 314 20 8 NSS, S.A.
14117 205 12 6 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
7303 158 75 19 Telecom Argentina Stet-France
6147 153 124 23 Telefonica Del Peru
5639 132 12 9 Telecommunications Services o
11556 132 80 4 Cable-Wireless Panama
21826 132 16 19 INTERCABLE
19169 125 8 28 Telconet
6503 122 149 75 AVANTEL, S.A.
14259 114 10 12 GTD Internet S.A.
23216 107 21 8 RAMtelecom Telecomunicaciones
6505 106 88 78 Global One Communicaoes Ltda
7910 105 7 10 ANDINET ON LINE
19429 102 57 43 E.T.B.
18822 97 6 8 TELEFONICA MANQUEHUE
7315 96 6 3 Grupo Rey Moreno
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 278 803 233 The Internet Solution
8452 170 60 7 TEDATA
6713 145 135 11 Itissalat Al-MAGHRIB
2018 123 314 104 Tertiary Education Network
5536 121 8 18 Internet Egypt Network
24835 118 50 7 RAYA Telecom - Egypt
33783 105 6 2 EEPAD TISP TELECOM & INTERNET
2905 73 155 66 The Internetworking Company o
15475 65 84 4 Nile Online
20928 57 16 2 Noor Advanced Technologies AS
5713 39 294 35 Telkom SA Ltd
12455 38 6 3 Jambonet Autonomous system
15706 31 8 3 Sudatel Internet Exchange Aut
33774 30 7 20 AS Number for Telecom Algeria
23889 26 8 11 MAURITIUS TELECOM
8524 24 1 4 AUCEGYPT Autonomous System
16637 24 14 22 Johnnic e-Ventures
10798 22 1 13 Standard Bank of South Africa
2561 19 6 2 Egyptian Universities Network
21280 19 5 5 Swift Global Kenya Ltd.Is an
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1265 1014 Time Warner Telecom
18566 935 927 Covad Communications
9583 890 874 Sify Limited
4134 1082 866 CHINANET-BACKBONE
19029 954 843 New Edge Networks
721 1007 703 DLA Systems Automation Center
4755 767 700 Videsh Sanchar Nigam Ltd. Aut
22773 650 608 Cox Communications, Inc.
11492 628 608 Cable One
6197 1012 540 BellSouth Network Solutions,
19262 688 526 Verizon Global Networks
19916 563 509 OLM LLC
5668 535 505 CenturyTel Internet Holdings,
9498 570 498 BHARTI BT INTERNET LTD.
17488 501 494 Hathway IP Over Cable Interne
855 550 487 Canadian Research Network
8151 699 472 UniNet S.A. de C.V.
7757 477 458 AT&T Broadband
7545 526 457 TPG Internet Pty Ltd
3602 537 428 Sprint Canada, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65241 PRIVATE 65.90.71.0/24 10794 Bank of America
65005 PRIVATE 159.153.148.0/22 24989 IX Europe Frankfurt
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
121.128.0.0/11 4766 Korea Telecom (KIX)
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
192.119.135.0/24 270 NASA
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 /8:17 /9:9 /10:8 /11:26 /12:88
/13:198 /14:358 /15:698 /16:8795 /17:3180 /18:5237
/19:11568 /20:13044 /21:11272 /22:14478 /23:15557 /24:101556
/25:371 /26:259 /27:205 /28:59 /29:70 /30:34
/31:0 /32:32
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 918 935 Covad Communications
19029 885 954 New Edge Networks
6197 800 1012 BellSouth Network Solutions,
7018 800 1508 AT&T WorldNet Services
9583 719 890 Sify Limited
11492 619 628 Cable One
4323 608 1265 Time Warner Telecom
2386 598 878 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 540 631 Citizens Utilities
4766 491 681 Korea Telecom (KIX)
7757 459 477 AT&T Broadband
6198 443 592 BellSouth Network Solutions,
855 425 550 Canadian Research Network
5668 416 535 CenturyTel Internet Holdings,
1239 379 847 Sprint
15270 374 405 PaeTec.net -a division of Pae
702 360 579 UUNET - Commercial IP service
6517 355 385 Yipes Communications, Inc.
8151 343 699 UniNet S.A. de C.V.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:40 12:1629 13:1 15:12 16:3
17:3 18:4 20:38 24:883 25:1 30:2
32:58 38:209 40:54 44:3 47:6 52:4
55:1 56:3 57:31 58:145 59:194 60:180
61:827 62:767 63:1927 64:3134 65:2244 66:3058
67:631 68:683 69:1484 70:338 71:77 72:693
73:23 74:29 80:782 81:632 82:619 83:384
84:379 85:525 86:345 87:317 88:74 89:151
124:225 125:368 128:161 129:179 130:107 131:319
132:30 133:8 134:155 135:46 136:177 137:71
138:198 139:67 140:464 141:134 142:386 143:161
144:225 145:43 146:325 147:134 148:325 149:186
150:112 151:81 152:64 153:107 154:6 155:196
156:97 157:142 158:169 159:171 160:87 161:73
162:253 163:145 164:179 165:193 166:163 167:246
168:477 169:133 170:331 171:12 172:1 183:1
190:50 192:5770 193:3360 194:2581 195:1826 196:831
198:3896 199:3246 200:4352 201:869 202:6600 203:6806
204:3877 205:2095 206:2416 207:2929 208:2051 209:3836
210:1939 211:699 212:1259 213:1469 214:344 215:41
216:4085 217:1172 218:263 219:181 220:651 221:357
222:142
End of report
