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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 23 Aug, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/08/23/0400
Analysis Summary
----------------
BGP routing table entries examined: 229462
Prefixes after maximum aggregation: 119782
Deaggregation factor: 1.92
Unique aggregates announced to Internet: 110461
Total ASes present in the Internet Routing Table: 26005
Prefixes per ASN: 8.82
Origin-only ASes present in the Internet Routing Table: 22642
Origin ASes announcing only one prefix: 11029
Transit ASes present in the Internet Routing Table: 3363
Transit-only ASes present in the Internet Routing Table: 76
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (35389) 16
Prefixes from unregistered ASNs in the Routing Table: 4
Unregistered ASNs in the Routing Table: 4
Prefixes from 32-bit ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1753697504
Equivalent to 104 /8s, 135 /16s and 76 /24s
Percentage of available address space announced: 47.3
Percentage of allocated address space announced: 62.0
Percentage of available address space allocated: 76.4
Total number of prefixes smaller than registry allocations: 121712
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 53752
Total APNIC prefixes after maximum aggregation: 20429
APNIC Deaggregation factor: 2.63
Prefixes being announced from the APNIC address blocks: 50661
Unique aggregates announced from the APNIC address blocks: 21263
APNIC Region origin ASes present in the Internet Routing Table: 3034
APNIC Prefixes per ASN: 16.70
APNIC Region origin ASes announcing only one prefix: 810
APNIC Region transit ASes present in the Internet Routing Table: 461
Average APNIC Region AS path length visible: 3.7
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 312755872
Equivalent to 18 /8s, 164 /16s and 70 /24s
Percentage of available APNIC address space announced: 77.5
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, 116/6, 120/6, 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: 108450
Total ARIN prefixes after maximum aggregation: 62814
ARIN Deaggregation factor: 1.73
Prefixes being announced from the ARIN address blocks: 79818
Unique aggregates announced from the ARIN address blocks: 31936
ARIN Region origin ASes present in the Internet Routing Table: 11761
ARIN Prefixes per ASN: 6.79
ARIN Region origin ASes announcing only one prefix: 4516
ARIN Region transit ASes present in the Internet Routing Table: 1077
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 342544128
Equivalent to 20 /8s, 106 /16s and 207 /24s
Percentage of available ARIN address space announced: 75.6
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: 48242
Total RIPE prefixes after maximum aggregation: 31103
RIPE Deaggregation factor: 1.55
Prefixes being announced from the RIPE address blocks: 44616
Unique aggregates announced from the RIPE address blocks: 29327
RIPE Region origin ASes present in the Internet Routing Table: 10083
RIPE Prefixes per ASN: 4.42
RIPE Region origin ASes announcing only one prefix: 5360
RIPE Region transit ASes present in the Internet Routing Table: 1610
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 324345984
Equivalent to 19 /8s, 85 /16s and 32 /24s
Percentage of available RIPE address space announced: 74.4
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
40960-44031
RIPE Address Blocks 62/8, 77/8, 78/7, 80/4, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 16314
Total LACNIC prefixes after maximum aggregation: 4407
LACNIC Deaggregation factor: 3.70
Prefixes being announced from the LACNIC address blocks: 14458
Unique aggregates announced from the LACNIC address blocks: 7763
LACNIC Region origin ASes present in the Internet Routing Table: 847
LACNIC Prefixes per ASN: 17.07
LACNIC Region origin ASes announcing only one prefix: 274
LACNIC Region transit ASes present in the Internet Routing Table: 146
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 42007296
Equivalent to 2 /8s, 128 /16s and 251 /24s
Percentage of available LACNIC address space announced: 62.6
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: 2695
Total AfriNIC prefixes after maximum aggregation: 1019
AfriNIC Deaggregation factor: 2.64
Prefixes being announced from the AfriNIC address blocks: 2242
Unique aggregates announced from the AfriNIC address blocks: 1334
AfriNIC Region origin ASes present in the Internet Routing Table: 203
AfriNIC Prefixes per ASN: 11.04
AfriNIC Region origin ASes announcing only one prefix: 69
AfriNIC Region transit ASes present in the Internet Routing Table: 32
Average AfriNIC Region AS path length visible: 3.9
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 7434240
Equivalent to 0 /8s, 113 /16s and 112 /24s
Percentage of available AfriNIC address space announced: 22.2
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
4755 1334 383 73 Videsh Sanchar Nigam Ltd. Aut
4134 1333 11142 288 CHINANET-BACKBONE
9583 1132 108 17 Sify Limited
9498 1000 533 70 BHARTI BT INTERNET LTD.
4766 794 5440 315 Korea Telecom (KIX)
23577 781 34 680 Korea Telecom (ATM-MPLS)
17488 770 50 50 Hathway IP Over Cable Interne
7545 733 159 121 TPG Internet Pty Ltd
18101 592 119 48 Reliance Infocom Ltd Internet
4812 547 968 96 China Telecom (Shanghai)
1221 542 1951 423 Telstra Pty Ltd
4668 516 68 10 LG-EDS Systems Inc.
17676 503 10919 64 Softbank BB Corp.
4808 476 768 107 CNCGROUP IP network: China169
9443 473 122 77 Primus Telecommunications
4802 428 116 154 Wantree Development
7474 377 216 267 SingTel Optus Pty Ltd
4837 366 5104 167 chinanet IDC center beijing n
17974 364 130 13 PT TELEKOMUNIKASI INDONESIA
9829 363 258 14 BSNL National Internet Backbo
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1470 6076 994 AT&T WorldNet Services
4323 1321 1007 372 Time Warner Telecom
2386 1213 617 748 AT&T Data Communications Serv
6478 1133 322 133 AT&T Worldnet Services
11492 1127 109 32 Cable One
6197 1028 718 508 BellSouth Network Solutions,
18566 1020 288 9 Covad Communications
174 970 6780 860 Cogent Communications
701 945 6579 724 UUNET Technologies, Inc.
7011 913 261 550 Citizens Utilities
20115 814 748 433 Charter Communications
1239 797 2721 565 Sprint
19262 765 2727 184 Verizon Global Networks
22773 755 2148 49 Cox Communications, Inc.
209 735 3820 581 Qwest
5668 628 171 24 CenturyTel Internet Holdings,
6517 582 163 36 Yipes Communications, Inc.
852 580 1096 364 Telus Advanced Communications
855 570 254 73 Canadian Research Network
6198 568 613 259 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2119 506 918 378 Telenor Internet Access
702 503 1922 404 UUNET - Commercial IP service
24863 365 57 39 LINKdotNET AS number
9116 340 168 26 Goldenlines main autonomous s
3301 314 1456 293 TeliaNet Sweden
3320 313 6035 260 Deutsche Telekom AG
6746 288 130 264 Dynamic Network Technologies,
680 265 2061 256 DFN-IP service G-WiN
8220 260 445 243 COLT Telecommunications
8708 260 420 241 Romania Data Systems S.A.
3215 258 2424 98 France Telecom Transpac
8551 232 228 27 Bezeq International
3352 226 1868 38 Ibernet, Internet Access Netw
5089 224 1658 54 NTL Group Limited
3269 221 2775 73 TELECOM ITALIA
9121 210 1441 24 TTnet Autonomous System
3292 195 1379 175 TDC Tele Danmark
12479 193 578 6 Uni2 Autonomous System
1257 192 1195 170 SWIPnet Swedish IP Network
3300 192 172 93 AUCS Communications Services
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 912 1973 208 UniNet S.A. de C.V.
11830 483 299 9 Instituto Costarricense de El
16814 426 26 9 NSS, S.A.
11172 375 115 61 Servicios Alestra S.A de C.V
7303 334 175 42 Telecom Argentina Stet-France
14522 334 28 7 SatNet S.A.
6471 322 75 33 ENTEL CHILE S.A.
22047 318 246 13 VTR PUNTO NET S.A.
14117 281 19 15 Telefonica del Sur S.A.
10481 278 104 9 Prima S.A.
11556 237 128 4 Cable-Wireless Panama
6147 227 178 24 Telefonica Del Peru
10620 217 61 26 TVCABLE BOGOTA
6503 201 171 82 AVANTEL, S.A.
23216 195 16 43 RAMtelecom Telecomunicaciones
8163 177 11 6 METROTEL REDES S.A.
20299 175 25 29 NEWCOM AMERICAS
19169 170 12 18 Telconet
21826 163 29 59 INTERCABLE
7738 160 506 23 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 282 867 223 The Internet Solution
8452 234 188 7 TEDATA
6713 142 135 11 Itissalat Al-MAGHRIB
2018 140 301 115 Tertiary Education Network
33783 126 8 11 EEPAD TISP TELECOM & INTERNET
5536 124 8 10 Internet Egypt Network
33776 99 6 8 Starcomms Nigeria Limited
24835 87 48 6 RAYA Telecom - Egypt
15475 78 84 4 Nile Online
2905 75 174 72 The Internetworking Company o
2561 62 6 2 Egyptian Universities Network
15706 52 12 4 Sudatel Internet Exchange Aut
23889 52 24 15 MAURITIUS TELECOM
5713 46 294 36 Telkom SA Ltd
16637 46 21 29 Johnnic e-Ventures
33774 46 29 24 AS Number for Telecom Algeria
8524 31 2 10 AUCEGYPT Autonomous System
21280 30 4 4 Swift Global Kenya Ltd.Is an
12455 29 6 3 Jambonet Autonomous system
10798 27 16 1 Standard Bank of South Africa
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1334 1261 Videsh Sanchar Nigam Ltd. Aut
9583 1132 1115 Sify Limited
11492 1127 1095 Cable One
4134 1333 1045 CHINANET-BACKBONE
18566 1020 1011 Covad Communications
6478 1133 1000 AT&T Worldnet Services
4323 1321 949 Time Warner Telecom
9498 1000 930 BHARTI BT INTERNET LTD.
17488 770 720 Hathway IP Over Cable Interne
22773 755 706 Cox Communications, Inc.
8151 912 704 UniNet S.A. de C.V.
7545 733 612 TPG Internet Pty Ltd
5668 628 604 CenturyTel Internet Holdings,
19262 765 581 Verizon Global Networks
6517 582 546 Yipes Communications, Inc.
18101 592 544 Reliance Infocom Ltd Internet
15270 567 529 PaeTec.net -a division of Pae
6197 1028 520 BellSouth Network Solutions,
19916 568 517 OLM LLC
4668 516 506 LG-EDS Systems Inc.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
64539 PRIVATE 170.213.128.0/24 7132 SBC Internet Service
64539 PRIVATE 170.213.129.0/24 7132 SBC Internet Service
64539 PRIVATE 170.213.132.0/24 7132 SBC Internet Service
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
7.1.1.0/24 1239 Sprint
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
192.0.10.0/24 9498 BHARTI BT INTERNET LTD.
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
192.153.136.0/21 721 DLA Systems Automation Center
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 /10:15 /11:36 /12:134
/13:258 /14:470 /15:920 /16:9607 /17:4061 /18:6571
/19:13902 /20:16178 /21:14878 /22:19138 /23:20118 /24:120750
/25:776 /26:1028 /27:502 /28:80 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1132 1133 AT&T Worldnet Services
11492 1119 1127 Cable One
18566 1002 1020 Covad Communications
9583 965 1132 Sify Limited
2386 907 1213 AT&T Data Communications Serv
7018 813 1470 AT&T WorldNet Services
7011 810 913 Citizens Utilities
6197 781 1028 BellSouth Network Solutions,
23577 772 781 Korea Telecom (ATM-MPLS)
4755 718 1334 Videsh Sanchar Nigam Ltd. Aut
9498 670 1000 BHARTI BT INTERNET LTD.
4766 594 794 Korea Telecom (KIX)
17488 593 770 Hathway IP Over Cable Interne
19916 563 568 OLM LLC
4323 553 1321 Time Warner Telecom
6517 549 582 Yipes Communications, Inc.
15270 531 567 PaeTec.net -a division of Pae
4668 506 516 LG-EDS Systems Inc.
18101 499 592 Reliance Infocom Ltd Internet
5668 493 628 CenturyTel Internet Holdings,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:88 12:1806 13:1 15:19
16:3 17:3 18:13 20:37 24:963 25:1
32:56 33:3 38:345 40:60 41:305 44:2
47:4 52:4 55:3 56:3 57:25 58:464
59:386 60:364 61:1003 62:943 63:1997 64:3170
65:2364 66:3405 67:765 68:646 69:1958 70:444
71:105 72:1382 73:2 74:629 75:261 76:125
77:289 78:43 80:832 81:832 82:656 83:379
84:590 85:855 86:338 87:488 88:281 89:978
90:25 91:490 97:5 116:281 117:137 121:256
122:592 123:156 124:847 125:955 126:1 128:276
129:214 130:140 131:363 132:56 133:9 134:198
135:34 136:189 137:81 138:149 139:72 140:497
141:173 142:377 143:257 144:300 145:46 146:326
147:123 148:404 149:142 150:110 151:159 152:88
153:122 154:3 155:263 156:161 157:214 158:158
159:171 160:113 161:96 162:186 163:180 164:480
165:393 166:275 167:296 168:511 169:121 170:391
171:22 172:2 189:69 190:984 192:5739 193:3979
194:3177 195:2276 196:976 198:3811 199:3276 200:5136
201:1161 202:7381 203:7583 204:3923 205:1973 206:2410
207:2808 208:2783 209:3485 210:2450 211:1092 212:1329
213:1471 214:420 215:41 216:3986 217:1175 218:359
219:381 220:1027 221:412 222:264
End of report
