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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 22 May, 2006
Analysis Summary
----------------
BGP routing table entries examined: 188390
Prefixes after maximum aggregation: 104157
Unique aggregates announced to Internet: 91526
Total ASes present in the Internet Routing Table: 22230
Origin-only ASes present in the Internet Routing Table: 19332
Origin ASes announcing only one prefix: 9251
Transit ASes present in the Internet Routing Table: 2898
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: 20
Max AS path prepend of ASN (34527) 16
Prefixes from unregistered ASNs in the Routing Table: 8
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: 1538514920
Equivalent to 91 /8s, 179 /16s and 223 /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: 93082
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 39771
Total APNIC prefixes after maximum aggregation: 16676
Prefixes being announced from the APNIC address blocks: 37476
Unique aggregates announced from the APNIC address blocks: 17556
APNIC Region origin ASes present in the Internet Routing Table: 2563
APNIC Region origin ASes announcing only one prefix: 731
APNIC Region transit ASes present in the Internet Routing Table: 391
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 226438368
Equivalent to 13 /8s, 127 /16s and 44 /24s
Percentage of available APNIC address space announced: 70.8
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: 97547
Total ARIN prefixes after maximum aggregation: 57714
Prefixes being announced from the ARIN address blocks: 71568
Unique aggregates announced from the ARIN address blocks: 26399
ARIN Region origin ASes present in the Internet Routing Table: 10715
ARIN Region origin ASes announcing only one prefix: 4020
ARIN Region transit ASes present in the Internet Routing Table: 993
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 292662784
Equivalent to 17 /8s, 113 /16s and 174 /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: 37691
Total RIPE prefixes after maximum aggregation: 25228
Prefixes being announced from the RIPE address blocks: 34611
Unique aggregates announced from the RIPE address blocks: 23378
RIPE Region origin ASes present in the Internet Routing Table: 8044
RIPE Region origin ASes announcing only one prefix: 4225
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: 250023684
Equivalent to 14 /8s, 231 /16s and 15 /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: 11324
Total LACNIC prefixes after maximum aggregation: 3645
Prefixes being announced from the LACNIC address blocks: 9464
Unique aggregates announced from the LACNIC address blocks: 5514
LACNIC Region origin ASes present in the Internet Routing Table: 688
LACNIC Region origin ASes announcing only one prefix: 228
LACNIC Region transit ASes present in the Internet Routing Table: 132
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 26976512
Equivalent to 1 /8s, 155 /16s and 161 /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: 2049
Total AfriNIC prefixes after maximum aggregation: 894
Prefixes being announced from the AfriNIC address blocks: 1472
Unique aggregates announced from the AfriNIC address blocks: 960
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: 26
Average AfriNIC Region AS path length visible: 3.5
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC addresses announced to Internet: 4080128
Equivalent to 0 /8s, 62 /16s and 66 /24s
Percentage of available AfriNIC address space announced: 12.2
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 1147 7096 218 CHINANET-BACKBONE
9583 903 109 16 Sify Limited
4755 899 259 73 Videsh Sanchar Nigam Ltd. Aut
4766 685 4435 304 Korea Telecom (KIX)
1221 615 1556 471 Telstra Pty Ltd
9498 559 211 67 BHARTI BT INTERNET LTD.
7545 531 124 70 TPG Internet Pty Ltd
17488 518 32 9 Hathway IP Over Cable Interne
17676 485 7029 109 Softbank BB Corp.
9443 450 110 81 Primus Telecommunications
4802 379 80 172 Wantree Development
17557 362 28 166 Pakistan Telecom
18101 360 85 23 Reliance Infocom Ltd Internet
17849 351 22 113 Telecommunications Technology
17974 337 135 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 272 409 66 CHINA UNICOM
9837 266 78 159 Powertel Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1503 6225 964 AT&T WorldNet Services
4323 1292 734 254 Time Warner Telecom
6197 1006 622 472 BellSouth Network Solutions,
721 997 21961 305 DLA Systems Automation Center
174 954 5786 898 Cogent Communications
19029 949 151 109 New Edge Networks
18566 940 272 8 Covad Communications
701 926 6780 765 UUNET Technologies, Inc.
2386 877 522 674 AT&T Data Communications Serv
1239 845 2805 599 Sprint
209 708 3689 554 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
852 581 1084 382 Telus Advanced Communications
6478 571 1523 337 AT&T Worldnet Services
19916 563 49 54 OLM LLC
855 545 244 64 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 577 1952 455 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 212 42 10 LINKdotNET AS number
8551 202 198 24 Bezeq International
3215 199 1664 94 France Telecom Transpac
3269 196 2134 72 TELECOM ITALIA
1257 191 740 166 SWIPnet Swedish IP Network
30890 183 16 68 SC Kappa Invexim SRL
8866 178 37 16 Bulgarian Telecommunication C
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 705 1082 225 UniNet S.A. de C.V.
22047 417 158 11 VTR PUNTO NET S.A.
16814 330 20 8 NSS, S.A.
11172 326 110 87 Servicios Alestra S.A de C.V
6147 262 126 22 Telefonica Del Peru
14117 201 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 132 16 23 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
6505 109 88 79 Global One Communicaoes Ltda
7910 105 7 10 ANDINET ON LINE
5639 103 12 9 Telecommunications Services o
14522 103 16 9 SatNet S.A.
19429 103 58 44 E.T.B.
18822 98 7 9 TELEFONICA MANQUEHUE
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 282 803 233 The Internet Solution
8452 168 60 7 TEDATA
6713 137 135 11 Itissalat Al-MAGHRIB
2018 131 314 105 Tertiary Education Network
5536 121 8 18 Internet Egypt Network
24835 117 50 7 RAYA Telecom - Egypt
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 27 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
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 940 932 Covad Communications
4134 1147 929 CHINANET-BACKBONE
9583 903 887 Sify Limited
19029 949 840 New Edge Networks
4755 899 826 Videsh Sanchar Nigam Ltd. Aut
721 997 692 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
17488 518 509 Hathway IP Over Cable Interne
5668 525 502 CenturyTel Internet Holdings,
9498 559 492 BHARTI BT INTERNET LTD.
855 545 481 Canadian Research Network
8151 705 480 UniNet S.A. de C.V.
7545 531 461 TPG Internet Pty Ltd
3602 539 429 Sprint Canada, Inc.
22047 417 406 VTR PUNTO NET S.A.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
39938 UNALLOCATED 68.142.125.0/24 22822 Limelight Networks,
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 /8:19 /9:9 /10:9 /11:28 /12:91
/13:200 /14:361 /15:705 /16:8816 /17:3216 /18:5317
/19:11658 /20:13111 /21:11369 /22:14632 /23:15806 /24:101995
/25:383 /26:251 /27:196 /28:62 /29:69 /30:49
/31:0 /32:38
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 923 940 Covad Communications
19029 880 949 New Edge Networks
6197 795 1006 BellSouth Network Solutions,
7018 793 1503 AT&T WorldNet Services
9583 732 903 Sify Limited
4323 636 1292 Time Warner Telecom
11492 612 621 Cable One
2386 603 877 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 387 845 Sprint
702 358 577 UUNET - Commercial IP service
6517 357 388 Yipes Communications, Inc.
6198 356 508 BellSouth Network Solutions,
17849 351 351 Telecommunications Technology
22773 349 662 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:42 12:1623 13:1 15:14 16:3
17:3 18:4 20:43 24:737 25:1 30:2
32:58 38:215 40:54 41:3 44:3 47:6
52:4 55:1 56:3 57:25 58:153 59:190
60:182 61:861 62:758 63:1924 64:3182 65:2258
66:3015 67:606 68:674 69:1516 70:361 71:85
72:716 73:23 74:36 80:776 81:614 82:539
83:395 84:385 85:526 86:384 87:355 88:90
89:192 124:279 125:408 128:152 129:190 130:109
131:317 132:33 133:8 134:159 135:46 136:178
137:74 138:203 139:68 140:467 141:136 142:380
143:165 144:224 145:39 146:307 147:136 148:307
149:187 150:114 151:90 152:68 153:107 154:5
155:202 156:100 157:149 158:167 159:169 160:87
161:76 162:247 163:148 164:171 165:202 166:166
167:242 168:490 169:128 170:337 171:14 183:1
190:72 192:5763 193:3366 194:2617 195:1839 196:844
198:3905 199:3210 200:4442 201:942 202:6611 203:6866
204:3894 205:2075 206:2407 207:2885 208:2087 209:3781
210:1966 211:683 212:1231 213:1465 214:364 215:41
216:4139 217:1142 218:273 219:199 220:661 221:362
222:162
End of report
