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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 12 May, 2006
Analysis Summary
----------------
BGP routing table entries examined: 187908
Prefixes after maximum aggregation: 103801
Unique aggregates announced to Internet: 92163
Total ASes present in the Internet Routing Table: 22129
Origin-only ASes present in the Internet Routing Table: 19245
Origin ASes announcing only one prefix: 9178
Transit ASes present in the Internet Routing Table: 2884
Transit-only ASes present in the Internet Routing Table: 65
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: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1537560224
Equivalent to 91 /8s, 165 /16s and 78 /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: 92572
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 39575
Total APNIC prefixes after maximum aggregation: 16525
Prefixes being announced from the APNIC address blocks: 37291
Unique aggregates announced from the APNIC address blocks: 18276
APNIC Region origin ASes present in the Internet Routing Table: 2550
APNIC Region origin ASes announcing only one prefix: 722
APNIC Region transit ASes present in the Internet Routing Table: 390
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 225587168
Equivalent to 13 /8s, 114 /16s and 47 /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: 97348
Total ARIN prefixes after maximum aggregation: 57620
Prefixes being announced from the ARIN address blocks: 71443
Unique aggregates announced from the ARIN address blocks: 26448
ARIN Region origin ASes present in the Internet Routing Table: 10700
ARIN Region origin ASes announcing only one prefix: 4011
ARIN Region transit ASes present in the Internet Routing Table: 989
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 292599808
Equivalent to 17 /8s, 112 /16s and 184 /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: 37515
Total RIPE prefixes after maximum aggregation: 25117
Prefixes being announced from the RIPE address blocks: 34532
Unique aggregates announced from the RIPE address blocks: 23308
RIPE Region origin ASes present in the Internet Routing Table: 7974
RIPE Region origin ASes announcing only one prefix: 4175
RIPE Region transit ASes present in the Internet Routing Table: 1319
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 249420992
Equivalent to 14 /8s, 221 /16s and 220 /24s
Percentage of available RIPE address space announced: 78.2
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: 11338
Total LACNIC prefixes after maximum aggregation: 3649
Prefixes being announced from the LACNIC address blocks: 9423
Unique aggregates announced from the LACNIC address blocks: 5483
LACNIC Region origin ASes present in the Internet Routing Table: 685
LACNIC Region origin ASes announcing only one prefix: 222
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: 16
Number of LACNIC addresses announced to Internet: 26945280
Equivalent to 1 /8s, 155 /16s and 39 /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: 2126
Total AfriNIC prefixes after maximum aggregation: 890
Prefixes being announced from the AfriNIC address blocks: 1467
Unique aggregates announced from the AfriNIC address blocks: 953
AfriNIC Region origin ASes present in the Internet Routing Table: 155
AfriNIC Region origin ASes announcing only one prefix: 48
AfriNIC Region transit ASes present in the Internet Routing Table: 24
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC addresses announced to Internet: 4068608
Equivalent to 0 /8s, 62 /16s and 21 /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 1137 7083 217 CHINANET-BACKBONE
4755 905 259 72 Videsh Sanchar Nigam Ltd. Aut
9583 900 109 16 Sify Limited
4766 683 4435 304 Korea Telecom (KIX)
1221 615 1556 471 Telstra Pty Ltd
9498 565 211 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 384 81 175 Wantree Development
17849 346 22 113 Telecommunications Technology
18101 343 85 23 Reliance Infocom Ltd Internet
2907 336 1749 312 SINET Japan
17557 329 28 158 Pakistan Telecom
9929 325 221 58 China Netcom Corp.
17974 315 135 19 PT TELEKOMUNIKASI INDONESIA
7474 298 211 228 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 6244 967 AT&T WorldNet Services
4323 1293 734 256 Time Warner Telecom
6197 1007 619 473 BellSouth Network Solutions,
721 987 21945 304 DLA Systems Automation Center
174 956 5787 901 Cogent Communications
19029 949 151 109 New Edge Networks
18566 939 272 8 Covad Communications
701 933 8011 774 UUNET Technologies, Inc.
2386 873 521 673 AT&T Data Communications Serv
1239 848 2805 600 Sprint
209 707 3563 555 Qwest
19262 698 2100 168 Verizon Global Networks
20115 691 604 372 Charter Communications
22773 660 1745 45 Cox Communications, Inc.
7011 634 218 412 Citizens Utilities
11492 588 86 22 Cable One
852 582 1085 384 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 549 244 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
702 582 1952 458 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 285 3989 239 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 209 40 9 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 175 16 63 SC Kappa Invexim SRL
5400 172 363 141 BT Ignite European Backbone
786 171 1778 171 The JANET IP Service
3300 162 171 97 AUCS Communications Services
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 708 1083 222 UniNet S.A. de C.V.
22047 417 158 11 VTR PUNTO NET S.A.
11172 324 110 84 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
5639 132 12 9 Telecommunications Services o
11556 132 80 4 Cable-Wireless Panama
21826 132 16 21 INTERCABLE
6503 129 149 78 AVANTEL, S.A.
19169 129 8 21 Telconet
14259 116 10 12 GTD Internet S.A.
23216 112 21 9 RAMtelecom Telecomunicaciones
6505 109 88 79 Global One Communicaoes Ltda
7910 105 7 10 ANDINET ON LINE
19429 103 58 44 E.T.B.
14571 97 25 3 Internet Group do Brasil
18822 97 6 8 TELEFONICA MANQUEHUE
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 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
21491 19 17 2 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1293 1037 Time Warner Telecom
18566 939 931 Covad Communications
4134 1137 920 CHINANET-BACKBONE
9583 900 884 Sify Limited
19029 949 840 New Edge Networks
4755 905 833 Videsh Sanchar Nigam Ltd. Aut
721 987 683 DLA Systems Automation Center
22773 660 615 Cox Communications, Inc.
11492 588 566 Cable One
6197 1007 534 BellSouth Network Solutions,
19262 698 530 Verizon Global Networks
19916 563 509 OLM LLC
5668 531 508 CenturyTel Internet Holdings,
9498 565 498 BHARTI BT INTERNET LTD.
17488 501 494 Hathway IP Over Cable Interne
8151 708 486 UniNet S.A. de C.V.
855 549 485 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 /11:27 /12:90
/13:202 /14:361 /15:705 /16:8813 /17:3200 /18:5296
/19:11630 /20:13146 /21:11328 /22:14553 /23:15610 /24:101847
/25:386 /26:265 /27:213 /28:62 /29:70 /30:35
/31:0 /32:33
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 799 1514 AT&T WorldNet Services
6197 796 1007 BellSouth Network Solutions,
9583 728 900 Sify Limited
4323 635 1293 Time Warner Telecom
2386 597 873 AT&T Data Communications Serv
11492 579 588 Cable One
19916 557 563 OLM LLC
7011 543 634 Citizens Utilities
4766 493 683 Korea Telecom (KIX)
855 423 549 Canadian Research Network
5668 413 531 CenturyTel Internet Holdings,
15270 394 425 PaeTec.net -a division of Pae
1239 386 848 Sprint
702 360 582 UUNET - Commercial IP service
6517 358 388 Yipes Communications, Inc.
6198 357 508 BellSouth Network Solutions,
8151 351 708 UniNet S.A. de C.V.
17849 346 346 Telecommunications Technology
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:41 12:1624 13:1 15:12 16:3
17:3 18:4 20:43 24:729 25:1 30:2
32:59 38:212 40:54 41:1 44:3 47:6
52:4 55:1 56:3 57:25 58:147 59:189
60:183 61:854 62:762 63:1930 64:3185 65:2251
66:2997 67:603 68:658 69:1483 70:328 71:82
72:696 73:23 74:34 80:774 81:630 82:601
83:388 84:386 85:525 86:393 87:329 88:84
89:182 124:273 125:381 128:160 129:185 130:114
131:319 132:33 133:8 134:159 135:46 136:178
137:74 138:197 139:69 140:468 141:136 142:380
143:164 144:228 145:39 146:326 147:136 148:333
149:187 150:113 151:84 152:68 153:107 154:6
155:198 156:98 157:146 158:161 159:170 160:87
161:72 162:261 163:146 164:180 165:194 166:163
167:246 168:488 169:128 170:336 171:14 183:1
190:72 192:5758 193:3382 194:2609 195:1827 196:844
198:3900 199:3229 200:4446 201:935 202:6618 203:6850
204:3895 205:2088 206:2399 207:2946 208:2060 209:3804
210:1921 211:681 212:1182 213:1469 214:364 215:41
216:4150 217:1159 218:274 219:186 220:658 221:359
222:150
End of report
