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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 06 Aug, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/08/06/0400
Analysis Summary
----------------
BGP routing table entries examined: 227273
Prefixes after maximum aggregation: 118877
Deaggregation factor: 1.91
Unique aggregates announced to Internet: 109380
Total ASes present in the Internet Routing Table: 25848
Prefixes per ASN: 8.79
Origin-only ASes present in the Internet Routing Table: 22521
Origin ASes announcing only one prefix: 11001
Transit ASes present in the Internet Routing Table: 3327
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: 8
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: 1743263712
Equivalent to 103 /8s, 232 /16s and 23 /24s
Percentage of available address space announced: 47.0
Percentage of allocated address space announced: 61.6
Percentage of available address space allocated: 76.4
Total number of prefixes smaller than registry allocations: 119882
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 53254
Total APNIC prefixes after maximum aggregation: 20323
APNIC Deaggregation factor: 2.62
Prefixes being announced from the APNIC address blocks: 50193
Unique aggregates announced from the APNIC address blocks: 20965
APNIC Region origin ASes present in the Internet Routing Table: 3026
APNIC Prefixes per ASN: 16.59
APNIC Region origin ASes announcing only one prefix: 820
APNIC Region transit ASes present in the Internet Routing Table: 462
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 306193568
Equivalent to 18 /8s, 64 /16s and 36 /24s
Percentage of available APNIC address space announced: 75.8
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, 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: 107567
Total ARIN prefixes after maximum aggregation: 62503
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 79215
Unique aggregates announced from the ARIN address blocks: 31557
ARIN Region origin ASes present in the Internet Routing Table: 11719
ARIN Prefixes per ASN: 6.76
ARIN Region origin ASes announcing only one prefix: 4527
ARIN Region transit ASes present in the Internet Routing Table: 1072
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 341401600
Equivalent to 20 /8s, 89 /16s and 96 /24s
Percentage of available ARIN address space announced: 75.4
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: 47802
Total RIPE prefixes after maximum aggregation: 30665
RIPE Deaggregation factor: 1.56
Prefixes being announced from the RIPE address blocks: 44145
Unique aggregates announced from the RIPE address blocks: 29044
RIPE Region origin ASes present in the Internet Routing Table: 9991
RIPE Prefixes per ASN: 4.42
RIPE Region origin ASes announcing only one prefix: 5320
RIPE Region transit ASes present in the Internet Routing Table: 1584
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 323551488
Equivalent to 19 /8s, 73 /16s and 1 /24s
Percentage of available RIPE address space announced: 74.2
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: 16022
Total LACNIC prefixes after maximum aggregation: 4349
LACNIC Deaggregation factor: 3.68
Prefixes being announced from the LACNIC address blocks: 14083
Unique aggregates announced from the LACNIC address blocks: 7808
LACNIC Region origin ASes present in the Internet Routing Table: 835
LACNIC Prefixes per ASN: 16.87
LACNIC Region origin ASes announcing only one prefix: 271
LACNIC Region transit ASes present in the Internet Routing Table: 140
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 41410048
Equivalent to 2 /8s, 119 /16s and 222 /24s
Percentage of available LACNIC address space announced: 61.7
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: 2617
Total AfriNIC prefixes after maximum aggregation: 1027
AfriNIC Deaggregation factor: 2.55
Prefixes being announced from the AfriNIC address blocks: 2167
Unique aggregates announced from the AfriNIC address blocks: 1302
AfriNIC Region origin ASes present in the Internet Routing Table: 200
AfriNIC Prefixes per ASN: 10.84
AfriNIC Region origin ASes announcing only one prefix: 63
AfriNIC Region transit ASes present in the Internet Routing Table: 33
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 6377984
Equivalent to 0 /8s, 97 /16s and 82 /24s
Percentage of available AfriNIC address space announced: 19.0
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 1371 11014 286 CHINANET-BACKBONE
4755 1311 382 71 Videsh Sanchar Nigam Ltd. Aut
9583 1132 108 17 Sify Limited
9498 1009 533 70 BHARTI BT INTERNET LTD.
4766 796 4930 316 Korea Telecom (KIX)
23577 788 34 685 Korea Telecom (ATM-MPLS)
17488 738 48 58 Hathway IP Over Cable Interne
7545 699 150 114 TPG Internet Pty Ltd
18101 578 117 41 Reliance Infocom Ltd Internet
1221 550 1951 428 Telstra Pty Ltd
4812 530 915 96 China Telecom (Shanghai)
4668 512 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
4808 479 768 110 CNCGROUP IP network: China169
9443 472 122 77 Primus Telecommunications
7474 415 218 269 SingTel Optus Pty Ltd
4802 414 108 153 Wantree Development
17974 363 130 13 PT TELEKOMUNIKASI INDONESIA
9829 362 258 14 BSNL National Internet Backbo
4837 352 4944 164 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1472 6075 994 AT&T WorldNet Services
4323 1325 1020 370 Time Warner Telecom
2386 1194 614 739 AT&T Data Communications Serv
11492 1116 109 16 Cable One
6478 1107 321 127 AT&T Worldnet Services
6197 1028 717 509 BellSouth Network Solutions,
18566 1018 288 9 Covad Communications
174 965 6776 855 Cogent Communications
701 941 6562 718 UUNET Technologies, Inc.
7011 906 259 546 Citizens Utilities
1239 813 2742 579 Sprint
20115 806 740 431 Charter Communications
19262 768 2765 187 Verizon Global Networks
22773 751 2148 49 Cox Communications, Inc.
209 744 3870 589 Qwest
5668 627 171 23 CenturyTel Internet Holdings,
6517 576 161 37 Yipes Communications, Inc.
855 575 254 73 Canadian Research Network
852 573 1093 364 Telus Advanced Communications
6198 570 613 259 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2119 515 1075 138 Telenor Internet Access
702 503 1922 404 UUNET - Commercial IP service
24863 362 56 41 LINKdotNET AS number
9116 323 168 26 Goldenlines main autonomous s
3320 313 6035 259 Deutsche Telekom AG
3301 312 1456 292 TeliaNet Sweden
6746 287 130 263 Dynamic Network Technologies,
5089 268 1658 53 NTL Group Limited
680 264 2044 255 DFN-IP service G-WiN
8220 259 445 242 COLT Telecommunications
3215 255 2376 96 France Telecom Transpac
8708 252 420 241 Romania Data Systems S.A.
3352 224 1864 41 Ibernet, Internet Access Netw
3269 221 2775 73 TELECOM ITALIA
8551 215 212 27 Bezeq International
9121 209 1441 23 TTnet Autonomous System
1257 194 1195 172 SWIPnet Swedish IP Network
3292 194 1379 174 TDC Tele Danmark
12479 192 578 6 Uni2 Autonomous System
3246 185 253 176 Song Networks
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 896 1958 206 UniNet S.A. de C.V.
11830 483 299 9 Instituto Costarricense de El
16814 426 26 9 NSS, S.A.
11172 377 116 63 Servicios Alestra S.A de C.V
14522 333 28 7 SatNet S.A.
7303 319 152 40 Telecom Argentina Stet-France
22047 318 246 13 VTR PUNTO NET S.A.
6471 312 75 31 ENTEL CHILE S.A.
14117 281 19 15 Telefonica del Sur S.A.
10481 261 104 9 Prima S.A.
11556 229 128 3 Cable-Wireless Panama
6147 225 174 26 Telefonica Del Peru
10620 217 61 19 TVCABLE BOGOTA
6503 203 172 85 AVANTEL, S.A.
23216 196 16 43 RAMtelecom Telecomunicaciones
8163 177 11 6 METROTEL REDES S.A.
20299 163 24 22 NEWCOM AMERICAS
19169 161 10 24 Telconet
21826 160 28 59 INTERCABLE
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 229 188 7 TEDATA
6713 142 135 11 Itissalat Al-MAGHRIB
2018 138 301 115 Tertiary Education Network
33783 126 8 11 EEPAD TISP TELECOM & INTERNET
5536 124 8 10 Internet Egypt Network
24835 89 48 6 RAYA Telecom - Egypt
15475 77 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
33776 47 3 5 Starcomms Nigeria Limited
5713 46 294 36 Telkom SA Ltd
33774 46 29 24 AS Number for Telecom Algeria
16637 42 21 29 Johnnic e-Ventures
8524 32 2 8 AUCEGYPT Autonomous System
12455 30 6 3 Jambonet Autonomous system
21280 28 4 4 Swift Global Kenya Ltd.Is an
10798 24 2 15 Standard Bank of South Africa
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1311 1240 Videsh Sanchar Nigam Ltd. Aut
9583 1132 1115 Sify Limited
11492 1116 1100 Cable One
4134 1371 1085 CHINANET-BACKBONE
18566 1018 1009 Covad Communications
6478 1107 980 AT&T Worldnet Services
4323 1325 955 Time Warner Telecom
9498 1009 939 BHARTI BT INTERNET LTD.
22773 751 702 Cox Communications, Inc.
8151 896 690 UniNet S.A. de C.V.
17488 738 680 Hathway IP Over Cable Interne
5668 627 604 CenturyTel Internet Holdings,
7545 699 585 TPG Internet Pty Ltd
19262 768 581 Verizon Global Networks
6517 576 539 Yipes Communications, Inc.
18101 578 537 Reliance Infocom Ltd Internet
15270 565 528 PaeTec.net -a division of Pae
6197 1028 519 BellSouth Network Solutions,
19916 568 517 OLM LLC
855 575 502 Canadian Research Network
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
38347 UNALLOCATED 116.212.160.0/21 9389 BEIJING SHENZHOU GRE
38347 UNALLOCATED 116.212.168.0/21 9389 BEIJING SHENZHOU GRE
65535 PRIVATE 193.203.218.0/23 38931 Traffic-Media
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 /12:130
/13:256 /14:468 /15:904 /16:9572 /17:4026 /18:6555
/19:13838 /20:16087 /21:14669 /22:18987 /23:19921 /24:119420
/25:769 /26:1013 /27:492 /28:75 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1107 1116 Cable One
6478 1106 1107 AT&T Worldnet Services
18566 1000 1018 Covad Communications
9583 965 1132 Sify Limited
2386 888 1194 AT&T Data Communications Serv
7018 808 1472 AT&T WorldNet Services
7011 804 906 Citizens Utilities
6197 782 1028 BellSouth Network Solutions,
23577 779 788 Korea Telecom (ATM-MPLS)
4755 702 1311 Videsh Sanchar Nigam Ltd. Aut
9498 678 1009 BHARTI BT INTERNET LTD.
4766 595 796 Korea Telecom (KIX)
19916 563 568 OLM LLC
17488 561 738 Hathway IP Over Cable Interne
4323 557 1325 Time Warner Telecom
6517 541 576 Yipes Communications, Inc.
15270 530 565 PaeTec.net -a division of Pae
4668 502 512 LG-EDS Systems Inc.
5668 492 627 CenturyTel Internet Holdings,
18101 490 578 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:84 9:1 12:1785 15:19
16:3 17:3 18:12 20:37 24:925 25:1
32:57 33:3 38:343 40:60 41:244 44:2
47:4 52:4 55:3 56:3 57:25 58:469
59:381 60:345 61:999 62:914 63:1992 64:3135
65:2350 66:3317 67:753 68:627 69:1921 70:444
71:102 72:1375 73:2 74:597 75:256 76:86
77:269 78:32 80:831 81:826 82:672 83:372
84:564 85:851 86:338 87:456 88:288 89:949
90:13 91:450 97:6 98:2 116:267 117:90
121:251 122:578 123:141 124:874 125:971 128:292
129:212 130:140 131:362 132:54 133:9 134:198
135:39 136:183 137:81 138:145 139:71 140:493
141:172 142:378 143:236 144:288 145:46 146:324
147:120 148:401 149:142 150:111 151:160 152:90
153:122 154:2 155:256 156:157 157:212 158:158
159:166 160:108 161:94 162:184 163:181 164:470
165:395 166:267 167:295 168:503 169:121 170:411
171:22 172:1 189:71 190:914 192:5754 193:3940
194:3167 195:2251 196:968 198:3806 199:3269 200:5044
201:1151 202:7381 203:7564 204:3945 205:1956 206:2413
207:2797 208:2743 209:3473 210:2421 211:969 212:1292
213:1456 214:413 215:40 216:3984 217:1152 218:351
219:386 220:1014 221:413 222:267
End of report
