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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 03 May, 2006
Analysis Summary
----------------
BGP routing table entries examined: 187490
Prefixes after maximum aggregation: 103495
Unique aggregates announced to Internet: 91647
Total ASes present in the Internet Routing Table: 22055
Origin-only ASes present in the Internet Routing Table: 19188
Origin ASes announcing only one prefix: 9146
Transit ASes present in the Internet Routing Table: 2867
Transit-only ASes present in the Internet Routing Table: 67
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 26
Max AS path prepend of ASN (34527) 16
Prefixes from unregistered ASNs in the Routing Table: 20
Unregistered ASNs in the Routing Table: 7
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1530610336
Equivalent to 91 /8s, 59 /16s and 66 /24s
Percentage of available address space announced: 41.3
Percentage of allocated address space announced: 59.7
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 92301
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 39628
Total APNIC prefixes after maximum aggregation: 16509
Prefixes being announced from the APNIC address blocks: 37346
Unique aggregates announced from the APNIC address blocks: 18219
APNIC Region origin ASes present in the Internet Routing Table: 2546
APNIC Region origin ASes announcing only one prefix: 719
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: 224874720
Equivalent to 13 /8s, 103 /16s and 80 /24s
Percentage of available APNIC address space announced: 70.3
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: 96953
Total ARIN prefixes after maximum aggregation: 57467
Prefixes being announced from the ARIN address blocks: 71148
Unique aggregates announced from the ARIN address blocks: 26271
ARIN Region origin ASes present in the Internet Routing Table: 10663
ARIN Region origin ASes announcing only one prefix: 4004
ARIN Region transit ASes present in the Internet Routing Table: 984
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 289789696
Equivalent to 17 /8s, 69 /16s and 215 /24s
Percentage of available ARIN address space announced: 75.1
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: 37481
Total RIPE prefixes after maximum aggregation: 24997
Prefixes being announced from the RIPE address blocks: 34509
Unique aggregates announced from the RIPE address blocks: 23126
RIPE Region origin ASes present in the Internet Routing Table: 7940
RIPE Region origin ASes announcing only one prefix: 4154
RIPE Region transit ASes present in the Internet Routing Table: 1305
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 247348928
Equivalent to 14 /8s, 190 /16s and 62 /24s
Percentage of available RIPE address space announced: 77.6
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: 11266
Total LACNIC prefixes after maximum aggregation: 3625
Prefixes being announced from the LACNIC address blocks: 9362
Unique aggregates announced from the LACNIC address blocks: 5420
LACNIC Region origin ASes present in the Internet Routing Table: 683
LACNIC Region origin ASes announcing only one prefix: 222
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: 26
Number of LACNIC addresses announced to Internet: 26758400
Equivalent to 1 /8s, 152 /16s and 77 /24s
Percentage of available LACNIC address space announced: 39.9
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: 2156
Total AfriNIC prefixes after maximum aggregation: 897
Prefixes being announced from the AfriNIC address blocks: 1478
Unique aggregates announced from the AfriNIC address blocks: 950
AfriNIC Region origin ASes present in the Internet Routing Table: 156
AfriNIC Region origin ASes announcing only one prefix: 47
AfriNIC Region transit ASes present in the Internet Routing Table: 27
Average AfriNIC Region AS path length visible: 3.5
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC addresses announced to Internet: 4062208
Equivalent to 0 /8s, 61 /16s and 252 /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 1129 7088 221 CHINANET-BACKBONE
4755 902 258 72 Videsh Sanchar Nigam Ltd. Aut
9583 898 109 16 Sify Limited
4766 681 4436 308 Korea Telecom (KIX)
1221 615 1556 470 Telstra Pty Ltd
9498 566 211 67 BHARTI BT INTERNET LTD.
7545 527 108 69 TPG Internet Pty Ltd
17488 501 31 7 Hathway IP Over Cable Interne
17676 485 7013 107 Softbank BB Corp.
9443 450 110 81 Primus Telecommunications
4802 382 81 176 Wantree Development
17849 347 22 113 Telecommunications Technology
2907 336 1749 312 SINET Japan
18101 336 69 24 Reliance Infocom Ltd Internet
17557 325 27 157 Pakistan Telecom
9929 324 221 57 China Netcom Corp.
17974 308 120 29 PT TELEKOMUNIKASI INDONESIA
7474 298 211 228 SingTel Optus Pty Ltd
9800 273 410 67 CHINA UNICOM
9837 265 78 158 Powertel Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1509 6256 965 AT&T WorldNet Services
4323 1289 733 252 Time Warner Telecom
6197 1007 618 472 BellSouth Network Solutions,
721 1004 21945 305 DLA Systems Automation Center
174 962 5787 909 Cogent Communications
19029 952 151 111 New Edge Networks
18566 937 272 8 Covad Communications
701 926 8012 768 UUNET Technologies, Inc.
2386 875 521 674 AT&T Data Communications Serv
1239 820 2790 596 Sprint
209 714 3595 559 Qwest
19262 691 2055 162 Verizon Global Networks
20115 685 599 367 Charter Communications
22773 657 1737 44 Cox Communications, Inc.
7011 633 217 413 Citizens Utilities
11492 628 86 21 Cable One
852 582 1085 384 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 550 244 63 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
702 580 1951 456 UUNET - Commercial IP service
3352 310 1612 29 Ibernet, Internet Access Netw
3301 307 1071 292 TeliaNet Sweden
3320 289 3989 239 Deutsche Telekom AG
8220 289 474 267 COLT Telecommunications
680 245 2025 242 DFN-IP service G-WiN
3246 233 504 223 Song Networks
6746 226 88 201 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
3269 198 2134 72 TELECOM ITALIA
1257 196 742 170 SWIPnet Swedish IP Network
3215 196 1662 93 France Telecom Transpac
8866 180 37 16 Bulgarian Telecommunication C
786 171 1778 171 The JANET IP Service
5400 171 363 140 BT Ignite European Backbone
6830 169 765 35 UPC Distribution Services
9121 169 931 27 TTnet Autonomous System
30890 164 15 63 SC Kappa Invexim SRL
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 697 1067 224 UniNet S.A. de C.V.
22047 408 158 11 VTR PUNTO NET S.A.
11172 323 110 84 Servicios Alestra S.A de C.V
16814 316 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 160 75 18 Telecom Argentina Stet-France
21826 135 16 21 INTERCABLE
5639 132 12 9 Telecommunications Services o
11556 132 80 4 Cable-Wireless Panama
6503 130 149 79 AVANTEL, S.A.
19169 127 8 20 Telconet
14259 114 10 12 GTD Internet S.A.
23216 109 21 9 RAMtelecom Telecomunicaciones
6505 106 88 78 Global One Communicaoes Ltda
7910 105 7 10 ANDINET ON LINE
19429 103 58 44 E.T.B.
14522 99 13 7 SatNet S.A.
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 170 60 7 TEDATA
6713 145 135 11 Itissalat Al-MAGHRIB
2018 123 314 104 Tertiary Education Network
5536 120 8 22 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 54 84 4 Nile Online
12455 53 6 3 Jambonet Autonomous system
5713 39 294 35 Telkom SA Ltd
15706 31 8 3 Sudatel Internet Exchange Aut
23889 31 8 11 MAURITIUS TELECOM
33774 30 7 20 AS Number for Telecom Algeria
8524 24 1 4 AUCEGYPT Autonomous System
16637 24 14 22 Johnnic e-Ventures
10798 22 1 13 Standard Bank of South Africa
21280 22 5 5 Swift Global Kenya Ltd.Is an
2561 19 6 2 Egyptian Universities Network
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1289 1037 Time Warner Telecom
18566 937 929 Covad Communications
4134 1129 908 CHINANET-BACKBONE
9583 898 882 Sify Limited
19029 952 841 New Edge Networks
4755 902 830 Videsh Sanchar Nigam Ltd. Aut
721 1004 699 DLA Systems Automation Center
22773 657 613 Cox Communications, Inc.
11492 628 607 Cable One
6197 1007 535 BellSouth Network Solutions,
19262 691 529 Verizon Global Networks
19916 563 509 OLM LLC
5668 531 503 CenturyTel Internet Holdings,
9498 566 499 BHARTI BT INTERNET LTD.
17488 501 494 Hathway IP Over Cable Interne
855 550 487 Canadian Research Network
8151 697 473 UniNet S.A. de C.V.
7545 527 458 TPG Internet Pty Ltd
3602 538 429 Sprint Canada, Inc.
22047 408 397 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
36727 UNALLOCATED 74.128.0.0/15 1239 Sprint
36727 UNALLOCATED 74.128.0.0/13 1239 Sprint
36727 UNALLOCATED 74.130.0.0/16 1239 Sprint
36727 UNALLOCATED 74.131.0.0/16 1239 Sprint
36727 UNALLOCATED 74.133.128.0/18 1239 Sprint
36727 UNALLOCATED 74.134.0.0/15 1239 Sprint
36727 UNALLOCATED 74.136.0.0/16 1239 Sprint
36727 UNALLOCATED 74.136.0.0/15 1239 Sprint
36727 UNALLOCATED 74.137.0.0/18 1239 Sprint
36727 UNALLOCATED 74.137.64.0/20 1239 Sprint
36727 UNALLOCATED 74.137.80.0/20 1239 Sprint
36727 UNALLOCATED 74.137.96.0/20 1239 Sprint
36727 UNALLOCATED 74.137.112.0/20 1239 Sprint
36727 UNALLOCATED 74.137.128.0/17 1239 Sprint
65000 PRIVATE 85.90.108.0/22 8570 Public Data Network
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
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 /12:89
/13:200 /14:361 /15:707 /16:8801 /17:3195 /18:5278
/19:11613 /20:13097 /21:11321 /22:14496 /23:15590 /24:101600
/25:388 /26:275 /27:218 /28:62 /29:70 /30:35
/31:0 /32:30
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 920 937 Covad Communications
19029 883 952 New Edge Networks
7018 801 1509 AT&T WorldNet Services
6197 796 1007 BellSouth Network Solutions,
9583 726 898 Sify Limited
4323 632 1289 Time Warner Telecom
11492 619 628 Cable One
2386 595 875 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 542 633 Citizens Utilities
4766 491 681 Korea Telecom (KIX)
855 425 550 Canadian Research Network
5668 412 531 CenturyTel Internet Holdings,
15270 379 410 PaeTec.net -a division of Pae
1239 371 820 Sprint
702 359 580 UUNET - Commercial IP service
6198 356 505 BellSouth Network Solutions,
6517 356 386 Yipes Communications, Inc.
17849 347 347 Telecommunications Technology
22773 344 657 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 8:43 12:1630 13:1 15:12 16:3
17:3 18:4 20:43 24:740 25:1 30:2
32:58 38:210 40:54 41:1 44:3 47:6
52:4 55:1 56:3 57:31 58:149 59:188
60:178 61:832 62:771 63:1913 64:3158 65:2202
66:2984 67:598 68:660 69:1469 70:328 71:77
72:687 73:23 74:31 80:794 81:633 82:601
83:383 84:382 85:526 86:385 87:327 88:77
89:161 124:261 125:381 128:162 129:181 130:108
131:320 132:32 133:8 134:158 135:46 136:178
137:72 138:198 139:67 140:465 141:133 142:384
143:163 144:225 145:43 146:324 147:136 148:330
149:184 150:116 151:81 152:64 153:107 154:6
155:196 156:97 157:142 158:168 159:171 160:86
161:72 162:258 163:145 164:180 165:194 166:163
167:246 168:481 169:133 170:328 171:13 183:1
190:59 192:5737 193:3361 194:2599 195:1837 196:862
198:3895 199:3234 200:4451 201:913 202:6605 203:6878
204:3875 205:2076 206:2401 207:2937 208:2063 209:3789
210:1924 211:693 212:1264 213:1470 214:352 215:41
216:4116 217:1171 218:276 219:182 220:655 221:358
222:147
End of report