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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 26 Aug, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/08/26/0400
Analysis Summary
----------------
BGP routing table entries examined: 229723
Prefixes after maximum aggregation: 119835
Deaggregation factor: 1.92
Unique aggregates announced to Internet: 110457
Total ASes present in the Internet Routing Table: 26015
Prefixes per ASN: 8.83
Origin-only ASes present in the Internet Routing Table: 22649
Origin ASes announcing only one prefix: 11028
Transit ASes present in the Internet Routing Table: 3366
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: 21
Max AS path prepend of ASN (35389) 16
Prefixes from unregistered ASNs in the Routing Table: 5
Unregistered ASNs in the Routing Table: 5
Prefixes from 32-bit ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1755503200
Equivalent to 104 /8s, 162 /16s and 218 /24s
Percentage of available address space announced: 47.4
Percentage of allocated address space announced: 62.0
Percentage of available address space allocated: 76.4
Total number of prefixes smaller than registry allocations: 121765
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 53871
Total APNIC prefixes after maximum aggregation: 20434
APNIC Deaggregation factor: 2.64
Prefixes being announced from the APNIC address blocks: 50784
Unique aggregates announced from the APNIC address blocks: 21322
APNIC Region origin ASes present in the Internet Routing Table: 3031
APNIC Prefixes per ASN: 16.75
APNIC Region origin ASes announcing only one prefix: 806
APNIC Region transit ASes present in the Internet Routing Table: 465
Average APNIC Region AS path length visible: 3.7
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 312961696
Equivalent to 18 /8s, 167 /16s and 106 /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: 108580
Total ARIN prefixes after maximum aggregation: 62849
ARIN Deaggregation factor: 1.73
Prefixes being announced from the ARIN address blocks: 79970
Unique aggregates announced from the ARIN address blocks: 31820
ARIN Region origin ASes present in the Internet Routing Table: 11768
ARIN Prefixes per ASN: 6.80
ARIN Region origin ASes announcing only one prefix: 4516
ARIN Region transit ASes present in the Internet Routing Table: 1082
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 342791424
Equivalent to 20 /8s, 110 /16s and 149 /24s
Percentage of available ARIN address space announced: 75.7
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: 48139
Total RIPE prefixes after maximum aggregation: 31096
RIPE Deaggregation factor: 1.55
Prefixes being announced from the RIPE address blocks: 44537
Unique aggregates announced from the RIPE address blocks: 29319
RIPE Region origin ASes present in the Internet Routing Table: 10085
RIPE Prefixes per ASN: 4.42
RIPE Region origin ASes announcing only one prefix: 5365
RIPE Region transit ASes present in the Internet Routing Table: 1605
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 325440384
Equivalent to 19 /8s, 101 /16s and 211 /24s
Percentage of available RIPE address space announced: 74.6
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
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: 16405
Total LACNIC prefixes after maximum aggregation: 4410
LACNIC Deaggregation factor: 3.72
Prefixes being announced from the LACNIC address blocks: 14513
Unique aggregates announced from the LACNIC address blocks: 7816
LACNIC Region origin ASes present in the Internet Routing Table: 849
LACNIC Prefixes per ASN: 17.09
LACNIC Region origin ASes announcing only one prefix: 272
LACNIC Region transit ASes present in the Internet Routing Table: 146
Average LACNIC Region AS path length visible: 3.9
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 42080768
Equivalent to 2 /8s, 130 /16s and 26 /24s
Percentage of available LACNIC address space announced: 62.7
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: 2717
Total AfriNIC prefixes after maximum aggregation: 1034
AfriNIC Deaggregation factor: 2.63
Prefixes being announced from the AfriNIC address blocks: 2266
Unique aggregates announced from the AfriNIC address blocks: 1348
AfriNIC Region origin ASes present in the Internet Routing Table: 206
AfriNIC Prefixes per ASN: 11.00
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: 7440384
Equivalent to 0 /8s, 113 /16s and 136 /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 1337 383 73 Videsh Sanchar Nigam Ltd. Aut
4134 1336 11150 289 CHINANET-BACKBONE
9583 1134 108 17 Sify Limited
9498 995 532 66 BHARTI BT INTERNET LTD.
4766 800 5441 316 Korea Telecom (KIX)
17488 794 52 53 Hathway IP Over Cable Interne
23577 783 34 680 Korea Telecom (ATM-MPLS)
7545 727 159 119 TPG Internet Pty Ltd
18101 592 119 48 Reliance Infocom Ltd Internet
4812 547 968 96 China Telecom (Shanghai)
1221 543 1951 424 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 464 122 77 Primus Telecommunications
4802 431 116 157 Wantree Development
7474 381 216 269 SingTel Optus Pty Ltd
4837 366 5104 167 chinanet IDC center beijing n
17974 365 130 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 1480 6077 996 AT&T WorldNet Services
4323 1324 992 372 Time Warner Telecom
2386 1216 618 750 AT&T Data Communications Serv
6478 1140 322 134 AT&T Worldnet Services
11492 1135 110 16 Cable One
6197 1029 718 509 BellSouth Network Solutions,
18566 1020 288 9 Covad Communications
174 972 6780 860 Cogent Communications
701 944 6578 723 UUNET Technologies, Inc.
7011 917 277 554 Citizens Utilities
20115 816 748 435 Charter Communications
1239 797 2721 565 Sprint
19262 767 2743 186 Verizon Global Networks
22773 759 2148 49 Cox Communications, Inc.
209 740 3836 585 Qwest
5668 643 172 24 CenturyTel Internet Holdings,
6517 589 165 37 Yipes Communications, Inc.
852 574 1095 360 Telus Advanced Communications
3356 571 10826 339 Level 3 Communications, LLC
855 570 254 73 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2119 501 917 375 Telenor Internet Access
702 491 1921 393 UUNET - Commercial IP service
24863 366 57 40 LINKdotNET AS number
9116 341 168 26 Goldenlines main autonomous s
3320 314 6035 261 Deutsche Telekom AG
3301 313 1456 293 TeliaNet Sweden
6746 288 130 264 Dynamic Network Technologies,
680 265 2061 256 DFN-IP service G-WiN
8708 262 420 241 Romania Data Systems S.A.
8220 260 445 243 COLT Telecommunications
3215 258 2424 98 France Telecom Transpac
8551 232 228 27 Bezeq International
3352 226 1868 38 Ibernet, Internet Access Netw
3269 221 2775 73 TELECOM ITALIA
9121 214 1441 24 TTnet Autonomous System
3292 195 1379 175 TDC Tele Danmark
12479 194 578 6 Uni2 Autonomous System
1257 192 1195 170 SWIPnet Swedish IP Network
3300 192 172 93 AUCS Communications Services
3246 186 252 177 Song Networks
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 924 1973 207 UniNet S.A. de C.V.
11830 479 299 9 Instituto Costarricense de El
16814 426 26 9 NSS, S.A.
11172 375 115 61 Servicios Alestra S.A de C.V
14522 334 28 7 SatNet S.A.
7303 332 174 42 Telecom Argentina Stet-France
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 218 61 20 TVCABLE BOGOTA
6503 201 170 82 AVANTEL, S.A.
23216 195 16 43 RAMtelecom Telecomunicaciones
20299 179 25 31 NEWCOM AMERICAS
8163 177 11 6 METROTEL REDES S.A.
21826 166 30 59 INTERCABLE
19169 164 12 15 Telconet
7738 162 506 23 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 283 868 224 The Internet Solution
8452 233 188 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 88 48 7 RAYA Telecom - Egypt
15475 76 84 4 Nile Online
2905 74 174 71 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 29 4 4 Swift Global Kenya Ltd.Is an
10798 27 16 1 Standard Bank of South Africa
12455 27 6 3 Jambonet Autonomous system
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1337 1264 Videsh Sanchar Nigam Ltd. Aut
11492 1135 1119 Cable One
9583 1134 1117 Sify Limited
4134 1336 1047 CHINANET-BACKBONE
18566 1020 1011 Covad Communications
6478 1140 1006 AT&T Worldnet Services
4323 1324 952 Time Warner Telecom
9498 995 929 BHARTI BT INTERNET LTD.
17488 794 741 Hathway IP Over Cable Interne
8151 924 717 UniNet S.A. de C.V.
22773 759 710 Cox Communications, Inc.
5668 643 619 CenturyTel Internet Holdings,
7545 727 608 TPG Internet Pty Ltd
19262 767 581 Verizon Global Networks
6517 589 552 Yipes Communications, Inc.
18101 592 544 Reliance Infocom Ltd Internet
15270 568 530 PaeTec.net -a division of Pae
6197 1029 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
64501 RESERVED 195.189.160.0/24 35041 Crystone Autonomous
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 /11:37 /12:134
/13:260 /14:471 /15:920 /16:9611 /17:4065 /18:6591
/19:13940 /20:16135 /21:14916 /22:19191 /23:20146 /24:120855
/25:780 /26:1031 /27:503 /28:82 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1139 1140 AT&T Worldnet Services
11492 1128 1135 Cable One
18566 1002 1020 Covad Communications
9583 967 1134 Sify Limited
2386 908 1216 AT&T Data Communications Serv
7018 818 1480 AT&T WorldNet Services
7011 813 917 Citizens Utilities
6197 782 1029 BellSouth Network Solutions,
23577 774 783 Korea Telecom (ATM-MPLS)
4755 720 1337 Videsh Sanchar Nigam Ltd. Aut
9498 668 995 BHARTI BT INTERNET LTD.
17488 617 794 Hathway IP Over Cable Interne
4766 598 800 Korea Telecom (KIX)
19916 563 568 OLM LLC
4323 557 1324 Time Warner Telecom
6517 555 589 Yipes Communications, Inc.
15270 532 568 PaeTec.net -a division of Pae
5668 508 643 CenturyTel Internet Holdings,
4668 506 516 LG-EDS Systems Inc.
18101 499 592 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:88 12:1809 13:1 15:19
16:3 17:3 18:13 20:37 24:964 25:1
32:56 33:3 38:347 40:60 41:316 44:2
47:4 52:4 55:3 56:3 57:25 58:469
59:386 60:366 61:1006 62:933 63:2000 64:3185
65:2364 66:3405 67:781 68:651 69:1964 70:447
71:104 72:1382 73:2 74:636 75:261 76:126
77:295 78:45 80:830 81:831 82:653 83:378
84:594 85:852 86:337 87:481 88:281 89:950
90:25 91:504 97:5 116:310 117:142 118:1
121:268 122:592 123:151 124:671 125:992 128:275
129:214 130:140 131:362 132:55 133:9 134:197
135:34 136:189 137:81 138:149 139:72 140:493
141:172 142:379 143:256 144:298 145:46 146:327
147:124 148:408 149:142 150:111 151:159 152:88
153:122 154:3 155:263 156:161 157:213 158:158
159:171 160:113 161:96 162:175 163:180 164:480
165:394 166:275 167:296 168:511 169:122 170:389
171:22 172:2 189:69 190:992 192:5737 193:3969
194:3184 195:2266 196:983 198:3810 199:3275 200:5132
201:1185 202:7405 203:7685 204:3923 205:1984 206:2416
207:2800 208:2791 209:3483 210:2463 211:1087 212:1330
213:1467 214:417 215:41 216:3979 217:1182 218:363
219:381 220:1027 221:413 222:264
End of report
