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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 15 May, 2006
Analysis Summary
----------------
BGP routing table entries examined: 187909
Prefixes after maximum aggregation: 103813
Unique aggregates announced to Internet: 92142
Total ASes present in the Internet Routing Table: 22139
Origin-only ASes present in the Internet Routing Table: 19258
Origin ASes announcing only one prefix: 9186
Transit ASes present in the Internet Routing Table: 2881
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: 21
Max AS path prepend of ASN (34527) 16
Prefixes from unregistered ASNs in the Routing Table: 7
Unregistered ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1537513128
Equivalent to 91 /8s, 164 /16s and 150 /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: 92706
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 39444
Total APNIC prefixes after maximum aggregation: 16503
Prefixes being announced from the APNIC address blocks: 37167
Unique aggregates announced from the APNIC address blocks: 18280
APNIC Region origin ASes present in the Internet Routing Table: 2549
APNIC Region origin ASes announcing only one prefix: 723
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: 15
Number of APNIC addresses announced to Internet: 225562336
Equivalent to 13 /8s, 113 /16s and 206 /24s
Percentage of available APNIC address space announced: 70.5
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: 97446
Total ARIN prefixes after maximum aggregation: 57635
Prefixes being announced from the ARIN address blocks: 71530
Unique aggregates announced from the ARIN address blocks: 26473
ARIN Region origin ASes present in the Internet Routing Table: 10704
ARIN Region origin ASes announcing only one prefix: 4012
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: 292700928
Equivalent to 17 /8s, 114 /16s and 67 /24s
Percentage of available ARIN address space announced: 75.9
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: 37568
Total RIPE prefixes after maximum aggregation: 25132
Prefixes being announced from the RIPE address blocks: 34576
Unique aggregates announced from the RIPE address blocks: 23229
RIPE Region origin ASes present in the Internet Routing Table: 7983
RIPE Region origin ASes announcing only one prefix: 4178
RIPE Region transit ASes present in the Internet Routing Table: 1316
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 249488836
Equivalent to 14 /8s, 222 /16s and 229 /24s
Percentage of available RIPE address space announced: 78.3
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, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 11321
Total LACNIC prefixes after maximum aggregation: 3654
Prefixes being announced from the LACNIC address blocks: 9421
Unique aggregates announced from the LACNIC address blocks: 5514
LACNIC Region origin ASes present in the Internet Routing Table: 685
LACNIC Region origin ASes announcing only one prefix: 225
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: 21
Number of LACNIC addresses announced to Internet: 26950400
Equivalent to 1 /8s, 155 /16s and 59 /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: 889
Prefixes being announced from the AfriNIC address blocks: 1465
Unique aggregates announced from the AfriNIC address blocks: 946
AfriNIC Region origin ASes present in the Internet Routing Table: 154
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: 4072448
Equivalent to 0 /8s, 62 /16s and 36 /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 1133 7079 216 CHINANET-BACKBONE
4755 910 259 73 Videsh Sanchar Nigam Ltd. Aut
9583 901 109 16 Sify Limited
4766 683 4435 304 Korea Telecom (KIX)
1221 615 1556 471 Telstra Pty Ltd
9498 566 211 67 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 382 80 174 Wantree Development
17849 347 22 111 Telecommunications Technology
18101 344 85 23 Reliance Infocom Ltd Internet
2907 336 1749 312 SINET Japan
17557 328 27 158 Pakistan Telecom
9929 325 221 58 China Netcom Corp.
17974 313 135 19 PT TELEKOMUNIKASI INDONESIA
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 1508 6196 966 AT&T WorldNet Services
4323 1291 734 255 Time Warner Telecom
6197 1006 622 474 BellSouth Network Solutions,
721 995 21945 304 DLA Systems Automation Center
174 958 5787 903 Cogent Communications
19029 950 151 109 New Edge Networks
18566 939 272 8 Covad Communications
701 933 8011 774 UUNET Technologies, Inc.
2386 875 522 675 AT&T Data Communications Serv
1239 847 2805 599 Sprint
209 707 3563 555 Qwest
19262 701 2104 167 Verizon Global Networks
20115 692 605 373 Charter Communications
22773 660 1745 45 Cox Communications, Inc.
7011 634 218 412 Citizens Utilities
11492 632 86 23 Cable One
852 584 1085 384 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 542 244 64 Canadian Research Network
3602 538 127 109 Sprint Canada, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 579 1952 457 UUNET - Commercial IP service
3301 307 1071 293 TeliaNet Sweden
3352 296 1628 30 Ibernet, Internet Access Netw
8220 294 474 267 COLT Telecommunications
3320 286 3989 240 Deutsche Telekom AG
680 245 2025 242 DFN-IP service G-WiN
3246 234 504 224 Song Networks
6746 230 89 206 Dynamic Network Technologies,
8708 217 275 200 Romania Data Systems S.A.
24863 210 41 10 LINKdotNET AS number
8551 202 198 24 Bezeq International
3215 198 1664 94 France Telecom Transpac
3269 198 2134 72 TELECOM ITALIA
1257 192 742 167 SWIPnet Swedish IP Network
8866 180 37 16 Bulgarian Telecommunication C
6830 175 765 35 UPC Distribution Services
30890 173 15 66 SC Kappa Invexim SRL
786 171 1778 171 The JANET IP Service
5400 170 347 140 BT Ignite European Backbone
9121 168 931 27 TTnet Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 706 1083 220 UniNet S.A. de C.V.
22047 417 158 11 VTR PUNTO NET S.A.
11172 323 110 87 Servicios Alestra S.A de C.V
16814 318 20 8 NSS, S.A.
6147 262 126 22 Telefonica Del Peru
14117 205 12 6 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
7303 164 77 21 Telecom Argentina Stet-France
11556 132 80 4 Cable-Wireless Panama
21826 132 16 21 INTERCABLE
19169 129 8 21 Telconet
6503 128 149 77 AVANTEL, S.A.
6505 126 91 84 Global One Communicaoes Ltda
14259 116 10 12 GTD Internet S.A.
23216 112 21 9 RAMtelecom Telecomunicaciones
5639 109 12 9 Telecommunications Services o
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 278 803 233 The Internet Solution
8452 168 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 117 50 7 RAYA Telecom - Egypt
33783 105 6 2 EEPAD TISP TELECOM & INTERNET
2905 73 155 66 The Internetworking Company o
20928 57 16 2 Noor Advanced Technologies AS
15475 52 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
21280 19 5 5 Swift Global Kenya Ltd.Is an
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1291 1036 Time Warner Telecom
18566 939 931 Covad Communications
4134 1133 917 CHINANET-BACKBONE
9583 901 885 Sify Limited
19029 950 841 New Edge Networks
4755 910 837 Videsh Sanchar Nigam Ltd. Aut
721 995 691 DLA Systems Automation Center
22773 660 615 Cox Communications, Inc.
11492 632 609 Cable One
19262 701 534 Verizon Global Networks
6197 1006 532 BellSouth Network Solutions,
19916 563 509 OLM LLC
5668 529 506 CenturyTel Internet Holdings,
9498 566 499 BHARTI BT INTERNET LTD.
17488 501 494 Hathway IP Over Cable Interne
8151 706 486 UniNet S.A. de C.V.
855 542 478 Canadian Research Network
7545 531 461 TPG Internet Pty Ltd
3602 538 429 Sprint Canada, Inc.
22047 417 406 VTR PUNTO NET S.A.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65241 PRIVATE 65.90.71.0/24 10794 Bank of America
65128 PRIVATE 193.110.50.0/24 24652 Juniper Networks, Eu
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
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
36366 UNALLOCATED 216.130.247.0/24 174 Cogent Communication
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 /12:90
/13:202 /14:361 /15:706 /16:8814 /17:3200 /18:5293
/19:11631 /20:13073 /21:11318 /22:14567 /23:15647 /24:101855
/25:387 /26:269 /27:215 /28:62 /29:70 /30:48
/31:0 /32:37
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 922 939 Covad Communications
19029 881 950 New Edge Networks
7018 795 1508 AT&T WorldNet Services
6197 794 1006 BellSouth Network Solutions,
9583 729 901 Sify Limited
4323 634 1291 Time Warner Telecom
11492 623 632 Cable One
2386 599 875 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 543 634 Citizens Utilities
4766 493 683 Korea Telecom (KIX)
855 416 542 Canadian Research Network
5668 411 529 CenturyTel Internet Holdings,
15270 396 427 PaeTec.net -a division of Pae
1239 385 847 Sprint
702 360 579 UUNET - Commercial IP service
6198 357 508 BellSouth Network Solutions,
6517 357 388 Yipes Communications, Inc.
8151 351 706 UniNet S.A. de C.V.
17849 347 347 Telecommunications Technology
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:41 12:1622 13:1 15:12 16:3
17:3 18:4 20:43 24:741 25:1 30:2
32:59 38:215 40:53 41:1 44:3 47:6
52:4 55:1 56:3 57:25 58:149 59:192
60:176 61:853 62:752 63:1923 64:3184 65:2256
66:3005 67:609 68:659 69:1489 70:330 71:82
72:704 73:23 74:34 80:771 81:640 82:602
83:388 84:385 85:520 86:392 87:330 88:84
89:186 124:274 125:384 128:153 129:187 130:114
131:319 132:33 133:8 134:159 135:46 136:178
137:75 138:198 139:70 140:469 141:136 142:373
143:164 144:227 145:39 146:327 147:136 148:331
149:186 150:112 151:85 152:68 153:107 154:6
155:198 156:103 157:143 158:161 159:171 160:88
161:75 162:261 163:146 164:179 165:194 166:163
167:246 168:488 169:128 170:336 171:14 183:1
190:87 192:5753 193:3368 194:2613 195:1826 196:840
198:3903 199:3221 200:4427 201:936 202:6586 203:6863
204:3900 205:2087 206:2405 207:2941 208:2065 209:3785
210:1912 211:682 212:1226 213:1467 214:362 215:41
216:4151 217:1155 218:272 219:193 220:655 221:358
222:147
End of report
