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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 19 May, 2006
Analysis Summary
----------------
BGP routing table entries examined: 188403
Prefixes after maximum aggregation: 104180
Unique aggregates announced to Internet: 92487
Total ASes present in the Internet Routing Table: 22222
Origin-only ASes present in the Internet Routing Table: 19333
Origin ASes announcing only one prefix: 9241
Transit ASes present in the Internet Routing Table: 2889
Transit-only ASes present in the Internet Routing Table: 63
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 20
Max AS path prepend of ASN (34527) 16
Prefixes from unregistered ASNs in the Routing Table: 7
Unregistered ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1538351016
Equivalent to 91 /8s, 177 /16s and 95 /24s
Percentage of available address space announced: 41.5
Percentage of allocated address space announced: 60.0
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 93127
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 39736
Total APNIC prefixes after maximum aggregation: 16704
Prefixes being announced from the APNIC address blocks: 37439
Unique aggregates announced from the APNIC address blocks: 18366
APNIC Region origin ASes present in the Internet Routing Table: 2559
APNIC Region origin ASes announcing only one prefix: 729
APNIC Region transit ASes present in the Internet Routing Table: 388
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 225934816
Equivalent to 13 /8s, 119 /16s and 125 /24s
Percentage of available APNIC address space announced: 70.6
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: 97512
Total ARIN prefixes after maximum aggregation: 57701
Prefixes being announced from the ARIN address blocks: 71550
Unique aggregates announced from the ARIN address blocks: 26509
ARIN Region origin ASes present in the Internet Routing Table: 10721
ARIN Region origin ASes announcing only one prefix: 4021
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: 20
Number of ARIN addresses announced to Internet: 292573184
Equivalent to 17 /8s, 112 /16s and 80 /24s
Percentage of available ARIN address space announced: 75.8
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, 64/5, 72/6, 76/8, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 37662
Total RIPE prefixes after maximum aggregation: 25213
Prefixes being announced from the RIPE address blocks: 34668
Unique aggregates announced from the RIPE address blocks: 23412
RIPE Region origin ASes present in the Internet Routing Table: 8033
RIPE Region origin ASes announcing only one prefix: 4215
RIPE Region transit ASes present in the Internet Routing Table: 1322
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 250003396
Equivalent to 14 /8s, 230 /16s and 191 /24s
Percentage of available RIPE address space announced: 78.4
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, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 11362
Total LACNIC prefixes after maximum aggregation: 3669
Prefixes being announced from the LACNIC address blocks: 9449
Unique aggregates announced from the LACNIC address blocks: 5509
LACNIC Region origin ASes present in the Internet Routing Table: 690
LACNIC Region origin ASes announcing only one prefix: 228
LACNIC Region transit ASes present in the Internet Routing Table: 131
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 26952960
Equivalent to 1 /8s, 155 /16s and 69 /24s
Percentage of available LACNIC address space announced: 40.2
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: 2124
Total AfriNIC prefixes after maximum aggregation: 893
Prefixes being announced from the AfriNIC address blocks: 1465
Unique aggregates announced from the AfriNIC address blocks: 963
AfriNIC Region origin ASes present in the Internet Routing Table: 156
AfriNIC Region origin ASes announcing only one prefix: 48
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: 4076544
Equivalent to 0 /8s, 62 /16s and 52 /24s
Percentage of available AfriNIC address space announced: 12.1
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 1139 7079 216 CHINANET-BACKBONE
9583 903 109 16 Sify Limited
4755 898 259 74 Videsh Sanchar Nigam Ltd. Aut
4766 685 4435 304 Korea Telecom (KIX)
1221 615 1556 471 Telstra Pty Ltd
9498 558 211 66 BHARTI BT INTERNET LTD.
7545 531 124 70 TPG Internet Pty Ltd
17488 501 31 7 Hathway IP Over Cable Interne
17676 487 7029 109 Softbank BB Corp.
9443 450 110 81 Primus Telecommunications
4802 380 80 173 Wantree Development
18101 359 85 23 Reliance Infocom Ltd Internet
17557 358 28 165 Pakistan Telecom
17849 351 22 113 Telecommunications Technology
17974 340 135 19 PT TELEKOMUNIKASI INDONESIA
2907 336 1749 312 SINET Japan
9929 326 221 57 China Netcom Corp.
7474 299 211 229 SingTel Optus Pty Ltd
9800 273 410 67 CHINA UNICOM
9837 266 78 159 Powertel Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1514 6212 966 AT&T WorldNet Services
4323 1292 734 254 Time Warner Telecom
6197 1006 622 472 BellSouth Network Solutions,
721 996 21945 303 DLA Systems Automation Center
174 955 5786 899 Cogent Communications
19029 949 151 109 New Edge Networks
18566 939 272 8 Covad Communications
701 931 6779 766 UUNET Technologies, Inc.
2386 877 522 675 AT&T Data Communications Serv
1239 848 2805 598 Sprint
209 706 3673 552 Qwest
19262 705 2106 170 Verizon Global Networks
20115 694 609 375 Charter Communications
22773 662 1745 45 Cox Communications, Inc.
7011 635 218 413 Citizens Utilities
11492 621 87 21 Cable One
852 583 1084 383 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 545 244 64 Canadian Research Network
3602 540 128 110 Sprint Canada, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 578 1952 456 UUNET - Commercial IP service
3301 307 1071 293 TeliaNet Sweden
3352 297 1644 30 Ibernet, Internet Access Netw
8220 294 472 267 COLT Telecommunications
3320 287 3989 240 Deutsche Telekom AG
680 245 2025 242 DFN-IP service G-WiN
3246 235 504 225 Song Networks
6746 232 89 208 Dynamic Network Technologies,
8708 219 276 202 Romania Data Systems S.A.
24863 213 42 10 LINKdotNET AS number
8551 202 198 24 Bezeq International
3215 199 1664 94 France Telecom Transpac
3269 198 2134 72 TELECOM ITALIA
1257 191 740 166 SWIPnet Swedish IP Network
8866 181 37 16 Bulgarian Telecommunication C
30890 180 16 67 SC Kappa Invexim SRL
786 171 1778 171 The JANET IP Service
5400 171 348 140 BT Ignite European Backbone
6830 169 765 35 UPC Distribution Services
9121 168 931 27 TTnet Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 707 1083 224 UniNet S.A. de C.V.
22047 417 158 11 VTR PUNTO NET S.A.
16814 331 20 8 NSS, S.A.
11172 324 110 87 Servicios Alestra S.A de C.V
6147 262 126 22 Telefonica Del Peru
14117 205 12 6 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
7303 169 79 24 Telecom Argentina Stet-France
11556 132 80 4 Cable-Wireless Panama
21826 131 16 22 INTERCABLE
6503 129 149 77 AVANTEL, S.A.
19169 129 8 21 Telconet
14259 116 10 12 GTD Internet S.A.
23216 113 21 9 RAMtelecom Telecomunicaciones
5639 110 12 9 Telecommunications Services o
6505 109 88 79 Global One Communicaoes Ltda
7910 105 7 10 ANDINET ON LINE
19429 103 58 44 E.T.B.
18822 98 7 9 TELEFONICA MANQUEHUE
14571 97 25 3 Internet Group do Brasil
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 280 803 233 The Internet Solution
8452 168 60 7 TEDATA
6713 137 135 11 Itissalat Al-MAGHRIB
2018 123 314 104 Tertiary Education Network
5536 121 8 18 Internet Egypt Network
24835 117 50 7 RAYA Telecom - Egypt
33783 105 6 2 EEPAD TISP TELECOM & INTERNET
2905 73 155 66 The Internetworking Company o
20928 58 16 2 Noor Advanced Technologies AS
15475 53 84 4 Nile Online
5713 39 294 35 Telkom SA Ltd
15706 31 8 3 Sudatel Internet Exchange Aut
33774 30 7 20 AS Number for Telecom Algeria
12455 28 6 3 Jambonet Autonomous system
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
33766 19 1 7 Nyala Communications Pty Ltd
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1292 1038 Time Warner Telecom
18566 939 931 Covad Communications
4134 1139 923 CHINANET-BACKBONE
9583 903 887 Sify Limited
19029 949 840 New Edge Networks
4755 898 824 Videsh Sanchar Nigam Ltd. Aut
721 996 693 DLA Systems Automation Center
22773 662 617 Cox Communications, Inc.
11492 621 600 Cable One
19262 705 535 Verizon Global Networks
6197 1006 534 BellSouth Network Solutions,
19916 563 509 OLM LLC
5668 525 502 CenturyTel Internet Holdings,
17488 501 494 Hathway IP Over Cable Interne
9498 558 492 BHARTI BT INTERNET LTD.
8151 707 483 UniNet S.A. de C.V.
855 545 481 Canadian Research Network
7545 531 461 TPG Internet Pty Ltd
3602 540 430 Sprint Canada, Inc.
22047 417 406 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
64515 PRIVATE 203.126.13.0/25 7610 SINGAPORE ADVANCE RE
64515 PRIVATE 203.126.13.128/26 7610 SINGAPORE ADVANCE RE
65280 PRIVATE 203.197.161.0/24 4755 Videsh Sanchar Nigam
65280 PRIVATE 203.200.14.0/24 4755 Videsh Sanchar Nigam
65280 PRIVATE 203.200.21.0/24 4755 Videsh Sanchar Nigam
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
192.119.135.0/24 270 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 /8:18 /9:9 /10:9 /11:28 /12:91
/13:200 /14:361 /15:704 /16:8817 /17:3220 /18:5311
/19:11654 /20:13120 /21:11346 /22:14623 /23:15755 /24:102091
/25:383 /26:250 /27:193 /28:64 /29:70 /30:50
/31:0 /32:36
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 922 939 Covad Communications
19029 880 949 New Edge Networks
7018 800 1514 AT&T WorldNet Services
6197 795 1006 BellSouth Network Solutions,
9583 731 903 Sify Limited
4323 636 1292 Time Warner Telecom
11492 612 621 Cable One
2386 605 877 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 544 635 Citizens Utilities
4766 495 685 Korea Telecom (KIX)
855 426 545 Canadian Research Network
5668 408 525 CenturyTel Internet Holdings,
15270 396 427 PaeTec.net -a division of Pae
1239 386 848 Sprint
702 359 578 UUNET - Commercial IP service
6198 357 509 BellSouth Network Solutions,
6517 357 388 Yipes Communications, Inc.
17849 351 351 Telecommunications Technology
8151 350 707 UniNet S.A. de C.V.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:41 12:1625 13:1 15:14 16:3
17:3 18:4 20:43 24:737 25:1 30:2
32:58 38:216 40:54 41:3 44:3 47:6
52:4 55:1 56:3 57:25 58:151 59:189
60:181 61:858 62:758 63:1929 64:3187 65:2254
66:3010 67:611 68:675 69:1508 70:360 71:85
72:712 73:23 74:36 80:767 81:642 82:603
83:395 84:389 85:526 86:397 87:335 88:90
89:193 124:278 125:388 128:156 129:191 130:109
131:317 132:33 133:8 134:159 135:46 136:178
137:75 138:207 139:68 140:468 141:136 142:380
143:165 144:228 145:39 146:328 147:136 148:332
149:187 150:114 151:90 152:67 153:107 154:6
155:203 156:100 157:149 158:166 159:171 160:87
161:76 162:261 163:146 164:179 165:203 166:163
167:242 168:489 169:128 170:336 171:14 183:1
190:72 192:5758 193:3364 194:2619 195:1834 196:845
198:3904 199:3218 200:4430 201:945 202:6596 203:6855
204:3894 205:2062 206:2415 207:2885 208:2085 209:3786
210:1958 211:691 212:1232 213:1472 214:360 215:41
216:4140 217:1145 218:274 219:199 220:659 221:362
222:162
End of report
