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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 25 Oct, 2006
Analysis Summary
----------------
BGP routing table entries examined: 201660
Prefixes after maximum aggregation: 109191
Unique aggregates announced to Internet: 97856
Total ASes present in the Internet Routing Table: 23449
Origin-only ASes present in the Internet Routing Table: 20423
Origin ASes announcing only one prefix: 9833
Transit ASes present in the Internet Routing Table: 3026
Transit-only ASes present in the Internet Routing Table: 75
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 29
Max AS path prepend of ASN (36728) 27
Prefixes from unregistered ASNs in the Routing Table: 1
Unregistered ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1619915820
Equivalent to 96 /8s, 141 /16s and 244 /24s
Percentage of available address space announced: 43.7
Percentage of allocated address space announced: 60.4
Percentage of available address space allocated: 72.3
Total number of prefixes smaller than registry allocations: 101521
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 44117
Total APNIC prefixes after maximum aggregation: 17683
Prefixes being announced from the APNIC address blocks: 41717
Unique aggregates announced from the APNIC address blocks: 18454
APNIC Region origin ASes present in the Internet Routing Table: 2729
APNIC Region origin ASes announcing only one prefix: 764
APNIC Region transit ASes present in the Internet Routing Table: 408
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 264528224
Equivalent to 15 /8s, 196 /16s and 97 /24s
Percentage of available APNIC address space announced: 82.7
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: 101152
Total ARIN prefixes after maximum aggregation: 59658
Prefixes being announced from the ARIN address blocks: 74341
Unique aggregates announced from the ARIN address blocks: 28050
ARIN Region origin ASes present in the Internet Routing Table: 11080
ARIN Region origin ASes announcing only one prefix: 4220
ARIN Region transit ASes present in the Internet Routing Table: 1038
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 29
Number of ARIN addresses announced to Internet: 306045568
Equivalent to 18 /8s, 61 /16s and 226 /24s
Percentage of available ARIN address space announced: 67.6
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, 39936-40959
ARIN Address Blocks 24/8, 63/8, 64/5, 72/6, 76/8, 96/6, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 41064
Total RIPE prefixes after maximum aggregation: 27050
Prefixes being announced from the RIPE address blocks: 38037
Unique aggregates announced from the RIPE address blocks: 25379
RIPE Region origin ASes present in the Internet Routing Table: 8663
RIPE Region origin ASes announcing only one prefix: 4560
RIPE Region transit ASes present in the Internet Routing Table: 1396
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 269401220
Equivalent to 16 /8s, 14 /16s and 188 /24s
Percentage of available RIPE address space announced: 73.0
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
40960-41983
RIPE Address Blocks 62/8, 77/8, 78/7, 80/5, 88/6, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 12986
Total LACNIC prefixes after maximum aggregation: 3873
Prefixes being announced from the LACNIC address blocks: 10970
Unique aggregates announced from the LACNIC address blocks: 6700
LACNIC Region origin ASes present in the Internet Routing Table: 738
LACNIC Region origin ASes announcing only one prefix: 242
LACNIC Region transit ASes present in the Internet Routing Table: 129
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 17
Number of LACNIC addresses announced to Internet: 33580288
Equivalent to 2 /8s, 0 /16s and 101 /24s
Percentage of available LACNIC address space announced: 50.0
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: 2340
Total AfriNIC prefixes after maximum aggregation: 927
Prefixes being announced from the AfriNIC address blocks: 1599
Unique aggregates announced from the AfriNIC address blocks: 1072
AfriNIC Region origin ASes present in the Internet Routing Table: 164
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: 3.6
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 4292608
Equivalent to 0 /8s, 65 /16s and 128 /24s
Percentage of available AfriNIC address space announced: 12.8
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 1247 8352 240 CHINANET-BACKBONE
4755 1012 383 65 Videsh Sanchar Nigam Ltd. Aut
9583 944 109 15 Sify Limited
9498 862 212 64 BHARTI BT INTERNET LTD.
4766 739 4436 305 Korea Telecom (KIX)
1221 609 1780 469 Telstra Pty Ltd
7545 543 124 74 TPG Internet Pty Ltd
17488 538 33 13 Hathway IP Over Cable Interne
17676 500 10934 64 Softbank BB Corp.
18101 464 86 21 Reliance Infocom Ltd Internet
9443 454 111 74 Primus Telecommunications
17849 430 36 126 Telecommunications Technology
9942 429 77 125 COMindico Australia
4812 427 745 61 China Telecom (Shanghai)
4802 412 86 150 Wantree Development
17974 365 129 12 PT TELEKOMUNIKASI INDONESIA
17557 364 31 176 Pakistan Telecom
10139 362 23 6 Meridian Telekoms
2907 333 1733 310 SINET Japan
4837 324 3556 140 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1534 6210 991 AT&T WorldNet Services
2386 1171 618 751 AT&T Data Communications Serv
4323 1031 786 291 Time Warner Telecom
6197 1019 638 483 BellSouth Network Solutions,
18566 969 272 8 Covad Communications
721 966 21925 308 DLA Systems Automation Center
174 960 6823 885 Cogent Communications
701 950 6737 770 UUNET Technologies, Inc.
1239 844 2764 593 Sprint
19262 760 2410 177 Verizon Global Networks
11492 759 96 16 Cable One
20115 756 679 398 Charter Communications
22773 709 1744 46 Cox Communications, Inc.
209 706 3633 556 Qwest
7011 687 210 428 Citizens Utilities
852 592 1071 388 Telus Advanced Communications
19916 565 49 54 OLM LLC
855 539 250 74 Canadian Research Network
5668 539 145 18 CenturyTel Internet Holdings,
6478 536 1289 338 AT&T Worldnet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 546 1928 425 UUNET - Commercial IP service
3301 314 1200 298 TeliaNet Sweden
3320 306 5016 247 Deutsche Telekom AG
8220 281 455 267 COLT Telecommunications
24863 274 41 30 LINKdotNET AS number
12715 264 40 29 Jazz Telecom S.A.
680 251 2041 247 DFN-IP service G-WiN
6746 246 91 224 Dynamic Network Technologies,
3246 227 469 217 Song Networks
8708 223 279 210 Romania Data Systems S.A.
9116 223 134 23 Goldenlines main autonomous s
3215 219 1952 92 France Telecom Transpac
8551 216 198 28 Bezeq International
1257 213 740 169 SWIPnet Swedish IP Network
30890 205 18 78 SC Kappa Invexim SRL
3269 204 2277 74 TELECOM ITALIA
6830 200 879 43 UPC Distribution Services
5416 186 12 11 BATELCO-BH
3300 175 171 96 AUCS Communications Services
786 171 1779 171 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 735 1906 220 UniNet S.A. de C.V.
11830 459 299 27 Instituto Costarricense de El
11172 433 101 88 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
22047 303 206 11 VTR PUNTO NET S.A.
6471 267 74 30 ENTEL CHILE S.A.
6147 264 142 22 Telefonica Del Peru
14117 235 15 8 Telefonica del Sur S.A.
7303 207 93 27 Telecom Argentina Stet-France
6503 189 169 86 AVANTEL, S.A.
10481 181 72 8 Prima S.A.
21826 145 19 30 INTERCABLE
7910 139 10 12 ANDINET ON LINE
19169 136 9 21 Telconet
19429 136 84 40 E.T.B.
23216 135 19 43 RAMtelecom Telecomunicaciones
11556 132 96 4 Cable-Wireless Panama
18822 129 8 10 TELEFONICA MANQUEHUE
14522 117 18 9 SatNet S.A.
7738 115 410 20 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 294 804 233 The Internet Solution
8452 166 60 7 TEDATA
6713 144 135 11 Itissalat Al-MAGHRIB
15475 133 84 4 Nile Online
2018 132 297 111 Tertiary Education Network
5536 122 8 17 Internet Egypt Network
24835 116 48 6 RAYA Telecom - Egypt
33783 109 6 3 EEPAD TISP TELECOM & INTERNET
2905 75 157 68 The Internetworking Company o
2561 56 6 2 Egyptian Universities Network
15706 52 12 4 Sudatel Internet Exchange Aut
12455 39 6 3 Jambonet Autonomous system
5713 36 293 32 Telkom SA Ltd
33774 34 7 21 AS Number for Telecom Algeria
8524 30 2 6 AUCEGYPT Autonomous System
23889 29 9 13 MAURITIUS TELECOM
21280 26 4 4 Swift Global Kenya Ltd.Is an
16637 24 19 23 Johnnic e-Ventures
10798 23 1 14 Standard Bank of South Africa
21491 21 17 2 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4134 1247 1007 CHINANET-BACKBONE
18566 969 961 Covad Communications
4755 1012 947 Videsh Sanchar Nigam Ltd. Aut
9583 944 929 Sify Limited
9498 862 798 BHARTI BT INTERNET LTD.
11492 759 743 Cable One
4323 1031 740 Time Warner Telecom
22773 709 663 Cox Communications, Inc.
721 966 658 DLA Systems Automation Center
19262 760 583 Verizon Global Networks
6197 1019 536 BellSouth Network Solutions,
17488 538 525 Hathway IP Over Cable Interne
5668 539 521 CenturyTel Internet Holdings,
8151 735 515 UniNet S.A. de C.V.
19916 565 511 OLM LLC
7545 543 469 TPG Internet Pty Ltd
855 539 465 Canadian Research Network
15270 481 446 PaeTec.net -a division of Pae
18101 464 443 Reliance Infocom Ltd Internet
17676 500 436 Softbank BB Corp.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
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
172.33.1.0/24 7018 AT&T WorldNet Services
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
192.172.0.0/19 721 DLA Systems Automation Center
192.249.0.0/20 3450 University of Tennessee, Knox
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:10 /10:13 /11:29 /12:107
/13:215 /14:388 /15:776 /16:9034 /17:3513 /18:5744
/19:12540 /20:14101 /21:12470 /22:15861 /23:17265 /24:108168
/25:460 /26:442 /27:197 /28:69 /29:45 /30:152
/31:0 /32:42
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 952 969 Covad Communications
2386 884 1171 AT&T Data Communications Serv
7018 810 1534 AT&T WorldNet Services
6197 798 1019 BellSouth Network Solutions,
9583 773 944 Sify Limited
11492 745 759 Cable One
7011 594 687 Citizens Utilities
19916 559 565 OLM LLC
4766 549 739 Korea Telecom (KIX)
9498 522 862 BHARTI BT INTERNET LTD.
15270 450 481 PaeTec.net -a division of Pae
4755 442 1012 Videsh Sanchar Nigam Ltd. Aut
855 434 539 Canadian Research Network
5668 420 539 CenturyTel Internet Holdings,
1239 417 844 Sprint
17849 416 430 Telecommunications Technology
18101 397 464 Reliance Infocom Ltd Internet
22773 374 709 Cox Communications, Inc.
33588 370 391 Bresnan Communications, LLC.
6517 358 385 Yipes Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:7 6:1 8:55 12:1638 13:1 15:16
16:3 17:3 18:4 20:38 24:817 25:1
32:58 38:258 40:57 41:16 44:4 47:7
52:4 53:1 55:1 56:3 57:25 58:230
59:303 60:218 61:933 62:1130 63:1882 64:3155
65:2243 66:3056 67:656 68:649 69:1673 70:403
71:92 72:988 74:90 75:9 80:841 81:710
82:630 83:390 84:412 85:685 86:414 87:471
88:238 89:597 91:27 121:57 122:18 124:434
125:668 128:284 129:225 130:123 131:315 132:35
133:9 134:167 135:50 136:178 137:110 138:184
139:47 140:527 141:131 142:343 143:193 144:244
145:43 146:320 147:137 148:370 149:176 150:115
151:121 152:80 153:121 154:5 155:256 156:160
157:163 158:152 159:172 160:99 161:86 162:214
163:178 164:238 165:235 166:230 167:274 168:482
169:128 170:385 171:11 172:1 189:4 190:250
192:5741 193:3531 194:2742 195:2104 196:858 198:3880
199:3321 200:4550 201:919 202:6940 203:7110 204:3930
205:2113 206:2435 207:2992 208:2302 209:3504 210:2191
211:876 212:1343 213:1470 214:377 215:39 216:4064
217:1140 218:340 219:261 220:799 221:374 222:231
End of report
Report Website: http://thyme.apnic.net
