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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 17 Aug, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/08/17/0400
Analysis Summary
----------------
BGP routing table entries examined: 228810
Prefixes after maximum aggregation: 119996
Deaggregation factor: 1.91
Unique aggregates announced to Internet: 111229
Total ASes present in the Internet Routing Table: 25985
Prefixes per ASN: 8.81
Origin-only ASes present in the Internet Routing Table: 22627
Origin ASes announcing only one prefix: 11050
Transit ASes present in the Internet Routing Table: 3358
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: 21
Max AS path prepend of ASN (35389) 16
Prefixes from unregistered ASNs in the Routing Table: 7
Unregistered ASNs in the Routing Table: 3
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: 1752121568
Equivalent to 104 /8s, 111 /16s and 64 /24s
Percentage of available address space announced: 47.3
Percentage of allocated address space announced: 61.9
Percentage of available address space allocated: 76.4
Total number of prefixes smaller than registry allocations: 121183
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 53561
Total APNIC prefixes after maximum aggregation: 20822
APNIC Deaggregation factor: 2.57
Prefixes being announced from the APNIC address blocks: 50495
Unique aggregates announced from the APNIC address blocks: 22239
APNIC Region origin ASes present in the Internet Routing Table: 3036
APNIC Prefixes per ASN: 16.63
APNIC Region origin ASes announcing only one prefix: 819
APNIC Region transit ASes present in the Internet Routing Table: 463
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 311660960
Equivalent to 18 /8s, 147 /16s and 145 /24s
Percentage of available APNIC address space announced: 77.2
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: 108107
Total ARIN prefixes after maximum aggregation: 62724
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 79655
Unique aggregates announced from the ARIN address blocks: 31853
ARIN Region origin ASes present in the Internet Routing Table: 11764
ARIN Prefixes per ASN: 6.77
ARIN Region origin ASes announcing only one prefix: 4534
ARIN Region transit ASes present in the Internet Routing Table: 1080
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 342594816
Equivalent to 20 /8s, 107 /16s and 149 /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: 48169
Total RIPE prefixes after maximum aggregation: 31036
RIPE Deaggregation factor: 1.55
Prefixes being announced from the RIPE address blocks: 44562
Unique aggregates announced from the RIPE address blocks: 29249
RIPE Region origin ASes present in the Internet Routing Table: 10057
RIPE Prefixes per ASN: 4.43
RIPE Region origin ASes announcing only one prefix: 5354
RIPE Region transit ASes present in the Internet Routing Table: 1606
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 323910016
Equivalent to 19 /8s, 78 /16s and 121 /24s
Percentage of available RIPE address space announced: 74.3
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: 16238
Total LACNIC prefixes after maximum aggregation: 4379
LACNIC Deaggregation factor: 3.71
Prefixes being announced from the LACNIC address blocks: 14333
Unique aggregates announced from the LACNIC address blocks: 7740
LACNIC Region origin ASes present in the Internet Routing Table: 847
LACNIC Prefixes per ASN: 16.92
LACNIC Region origin ASes announcing only one prefix: 277
LACNIC Region transit ASes present in the Internet Routing Table: 143
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 41976064
Equivalent to 2 /8s, 128 /16s and 129 /24s
Percentage of available LACNIC address space announced: 62.5
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: 2723
Total AfriNIC prefixes after maximum aggregation: 1025
AfriNIC Deaggregation factor: 2.66
Prefixes being announced from the AfriNIC address blocks: 2251
Unique aggregates announced from the AfriNIC address blocks: 1331
AfriNIC Region origin ASes present in the Internet Routing Table: 204
AfriNIC Prefixes per ASN: 11.03
AfriNIC Region origin ASes announcing only one prefix: 66
AfriNIC Region transit ASes present in the Internet Routing Table: 31
Average AfriNIC Region AS path length visible: 3.9
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 7508992
Equivalent to 0 /8s, 114 /16s and 148 /24s
Percentage of available AfriNIC address space announced: 22.4
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 1333 11142 288 CHINANET-BACKBONE
4755 1322 382 71 Videsh Sanchar Nigam Ltd. Aut
9583 1122 80 401 Sify Limited
9498 996 532 69 BHARTI BT INTERNET LTD.
4766 799 5441 317 Korea Telecom (KIX)
23577 787 34 684 Korea Telecom (ATM-MPLS)
17488 755 49 56 Hathway IP Over Cable Interne
7545 695 150 115 TPG Internet Pty Ltd
18101 588 118 45 Reliance Infocom Ltd Internet
1221 547 1951 428 Telstra Pty Ltd
4812 542 979 98 China Telecom (Shanghai)
4668 516 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
4808 476 768 107 CNCGROUP IP network: China169
9443 473 122 77 Primus Telecommunications
4802 427 112 153 Wantree Development
7474 396 217 270 SingTel Optus Pty Ltd
17974 364 129 12 PT TELEKOMUNIKASI INDONESIA
9829 363 258 14 BSNL National Internet Backbo
4837 354 4944 165 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1471 6076 995 AT&T WorldNet Services
4323 1334 1007 373 Time Warner Telecom
2386 1207 615 742 AT&T Data Communications Serv
11492 1124 109 32 Cable One
6478 1115 322 140 AT&T Worldnet Services
6197 1029 718 509 BellSouth Network Solutions,
18566 1019 288 9 Covad Communications
174 970 6780 860 Cogent Communications
701 941 6563 719 UUNET Technologies, Inc.
7011 907 259 545 Citizens Utilities
20115 805 741 430 Charter Communications
1239 801 2723 567 Sprint
19262 763 2721 182 Verizon Global Networks
22773 753 2148 49 Cox Communications, Inc.
209 732 3837 581 Qwest
5668 628 171 24 CenturyTel Internet Holdings,
6517 582 161 37 Yipes Communications, Inc.
852 575 1093 366 Telus Advanced Communications
855 575 254 73 Canadian Research Network
6198 569 613 259 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 362 57 41 LINKdotNET AS number
9116 348 168 26 Goldenlines main autonomous s
3301 313 1456 293 TeliaNet Sweden
3320 313 6035 260 Deutsche Telekom AG
6746 287 130 263 Dynamic Network Technologies,
5089 269 1658 54 NTL Group Limited
680 264 2059 255 DFN-IP service G-WiN
8220 261 445 244 COLT Telecommunications
8708 260 420 241 Romania Data Systems S.A.
3215 256 2392 97 France Telecom Transpac
8551 232 228 27 Bezeq International
3352 225 1868 38 Ibernet, Internet Access Netw
3269 221 2775 73 TELECOM ITALIA
9121 210 1441 24 TTnet Autonomous System
3292 195 1379 175 TDC Tele Danmark
1257 194 1195 172 SWIPnet Swedish IP Network
3300 192 172 93 AUCS Communications Services
12479 191 578 6 Uni2 Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 921 1973 205 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 335 174 41 Telecom Argentina Stet-France
14522 334 28 7 SatNet S.A.
22047 318 246 13 VTR PUNTO NET S.A.
6471 317 75 32 ENTEL CHILE S.A.
14117 281 19 15 Telefonica del Sur S.A.
10481 261 104 9 Prima S.A.
11556 235 128 3 Cable-Wireless Panama
6147 226 176 27 Telefonica Del Peru
10620 218 61 20 TVCABLE BOGOTA
6503 200 171 83 AVANTEL, S.A.
23216 195 16 43 RAMtelecom Telecomunicaciones
8163 177 11 6 METROTEL REDES S.A.
19169 169 12 18 Telconet
21826 162 28 61 INTERCABLE
20299 161 24 20 NEWCOM AMERICAS
7738 159 506 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 79 84 4 Nile Online
2905 75 174 72 The Internetworking Company o
2561 62 6 2 Egyptian Universities Network
15706 56 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
12455 32 6 3 Jambonet Autonomous system
8524 31 2 10 AUCEGYPT Autonomous System
21280 30 4 4 Swift Global Kenya Ltd.Is an
10798 26 16 1 Standard Bank of South Africa
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1322 1251 Videsh Sanchar Nigam Ltd. Aut
11492 1124 1092 Cable One
4134 1333 1045 CHINANET-BACKBONE
18566 1019 1010 Covad Communications
6478 1115 975 AT&T Worldnet Services
4323 1334 961 Time Warner Telecom
9498 996 927 BHARTI BT INTERNET LTD.
9583 1122 721 Sify Limited
8151 921 716 UniNet S.A. de C.V.
22773 753 704 Cox Communications, Inc.
17488 755 699 Hathway IP Over Cable Interne
5668 628 604 CenturyTel Internet Holdings,
19262 763 581 Verizon Global Networks
7545 695 580 TPG Internet Pty Ltd
6517 582 545 Yipes Communications, Inc.
18101 588 543 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
64513 PRIVATE 63.171.234.0/26 1803 SPRINT
64513 PRIVATE 63.171.234.64/26 1803 SPRINT
64513 PRIVATE 63.171.234.128/26 1803 SPRINT
64513 PRIVATE 63.171.234.192/26 1803 SPRINT
65038 PRIVATE 88.213.141.0/24 34695 E4A Primary AS
65038 PRIVATE 88.213.155.0/24 34695 E4A Primary AS
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
/13:257 /14:471 /15:918 /16:9590 /17:4055 /18:6556
/19:13875 /20:16162 /21:14773 /22:19092 /23:20055 /24:120374
/25:778 /26:1031 /27:516 /28:82 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1116 1124 Cable One
6478 1114 1115 AT&T Worldnet Services
18566 1001 1019 Covad Communications
9583 964 1122 Sify Limited
2386 902 1207 AT&T Data Communications Serv
7018 808 1471 AT&T WorldNet Services
7011 805 907 Citizens Utilities
6197 782 1029 BellSouth Network Solutions,
23577 778 787 Korea Telecom (ATM-MPLS)
4755 710 1322 Videsh Sanchar Nigam Ltd. Aut
9498 665 996 BHARTI BT INTERNET LTD.
4766 596 799 Korea Telecom (KIX)
17488 578 755 Hathway IP Over Cable Interne
4323 563 1334 Time Warner Telecom
19916 563 568 OLM LLC
6517 547 582 Yipes Communications, Inc.
15270 532 568 PaeTec.net -a division of Pae
4668 506 516 LG-EDS Systems Inc.
18101 498 588 Reliance Infocom Ltd Internet
5668 493 628 CenturyTel Internet Holdings,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:86 12:1792 13:1 15:19
16:3 17:3 18:13 20:37 24:949 25:1
32:57 33:3 38:345 40:60 41:304 44:2
47:4 52:4 55:3 56:3 57:25 58:473
59:386 60:352 61:992 62:939 63:1997 64:3155
65:2361 66:3396 67:763 68:646 69:1940 70:444
71:104 72:1385 73:2 74:621 75:255 76:124
77:277 78:39 80:833 81:831 82:653 83:381
84:598 85:852 86:337 87:483 88:285 89:962
90:22 91:485 97:6 116:281 117:126 121:262
122:596 123:154 124:841 125:981 128:290 129:214
130:140 131:362 132:55 133:9 134:199 135:34
136:188 137:81 138:149 139:71 140:491 141:173
142:379 143:255 144:298 145:46 146:326 147:120
148:410 149:141 150:110 151:159 152:88 153:122
154:3 155:261 156:156 157:209 158:158 159:176
160:108 161:94 162:186 163:179 164:476 165:390
166:275 167:295 168:508 169:121 170:394 171:22
172:2 189:68 190:970 192:5743 193:3969 194:3183
195:2270 196:982 198:3739 199:3272 200:5107 201:1153
202:7395 203:7628 204:3947 205:1980 206:2342 207:2815
208:2769 209:3506 210:2443 211:985 212:1339 213:1477
214:416 215:41 216:3974 217:1166 218:353 219:380
220:1017 221:413 222:266
End of report
