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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 07 Jun, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/06/07/0400
Analysis Summary
----------------
BGP routing table entries examined: 222319
Prefixes after maximum aggregation: 118260
Deaggregation factor: 1.88
Unique aggregates announced to Internet: 107999
Total ASes present in the Internet Routing Table: 25378
Prefixes per ASN: 8.76
Origin-only ASes present in the Internet Routing Table: 22078
Origin ASes announcing only one prefix: 10724
Transit ASes present in the Internet Routing Table: 3300
Transit-only ASes present in the Internet Routing Table: 82
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 22
Max AS path prepend of ASN (35389) 16
Prefixes from unregistered ASNs in the Routing Table: 5
Unregistered ASNs in the Routing Table: 7
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: 12
Number of addresses announced to Internet: 1734728288
Equivalent to 103 /8s, 101 /16s and 218 /24s
Percentage of available address space announced: 46.8
Percentage of allocated address space announced: 62.0
Percentage of available address space allocated: 75.5
Total number of prefixes smaller than registry allocations: 116674
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 51388
Total APNIC prefixes after maximum aggregation: 20396
APNIC Deaggregation factor: 2.52
Prefixes being announced from the APNIC address blocks: 48342
Unique aggregates announced from the APNIC address blocks: 21391
APNIC Region origin ASes present in the Internet Routing Table: 2962
APNIC Prefixes per ASN: 16.32
APNIC Region origin ASes announcing only one prefix: 792
APNIC Region transit ASes present in the Internet Routing Table: 451
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 297939104
Equivalent to 17 /8s, 194 /16s and 48 /24s
Percentage of available APNIC address space announced: 73.8
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: 106922
Total ARIN prefixes after maximum aggregation: 62321
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 78793
Unique aggregates announced from the ARIN address blocks: 30839
ARIN Region origin ASes present in the Internet Routing Table: 11615
ARIN Prefixes per ASN: 6.78
ARIN Region origin ASes announcing only one prefix: 4470
ARIN Region transit ASes present in the Internet Routing Table: 1067
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 334891904
Equivalent to 19 /8s, 246 /16s and 11 /24s
Percentage of available ARIN address space announced: 73.9
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: 46435
Total RIPE prefixes after maximum aggregation: 30317
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 42948
Unique aggregates announced from the RIPE address blocks: 28600
RIPE Region origin ASes present in the Internet Routing Table: 9730
RIPE Prefixes per ASN: 4.41
RIPE Region origin ASes announcing only one prefix: 5151
RIPE Region transit ASes present in the Internet Routing Table: 1569
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 314430208
Equivalent to 18 /8s, 189 /16s and 211 /24s
Percentage of available RIPE address space announced: 78.1
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, 80/5, 88/6, 92/7, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 14995
Total LACNIC prefixes after maximum aggregation: 4214
LACNIC Deaggregation factor: 3.56
Prefixes being announced from the LACNIC address blocks: 13061
Unique aggregates announced from the LACNIC address blocks: 7329
LACNIC Region origin ASes present in the Internet Routing Table: 800
LACNIC Prefixes per ASN: 16.33
LACNIC Region origin ASes announcing only one prefix: 256
LACNIC Region transit ASes present in the Internet Routing Table: 142
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 39260928
Equivalent to 2 /8s, 87 /16s and 19 /24s
Percentage of available LACNIC address space announced: 58.5
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: 2570
Total AfriNIC prefixes after maximum aggregation: 1002
AfriNIC Deaggregation factor: 2.56
Prefixes being announced from the AfriNIC address blocks: 1966
Unique aggregates announced from the AfriNIC address blocks: 1193
AfriNIC Region origin ASes present in the Internet Routing Table: 188
AfriNIC Prefixes per ASN: 10.46
AfriNIC Region origin ASes announcing only one prefix: 55
AfriNIC Region transit ASes present in the Internet Routing Table: 37
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 6158336
Equivalent to 0 /8s, 93 /16s and 248 /24s
Percentage of available AfriNIC address space announced: 18.4
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 1290 9975 279 CHINANET-BACKBONE
4755 1231 382 71 Videsh Sanchar Nigam Ltd. Aut
9583 1102 79 387 Sify Limited
9498 996 469 67 BHARTI BT INTERNET LTD.
4766 786 4943 312 Korea Telecom (KIX)
23577 779 35 706 Korea Telecom (ATM-MPLS)
17488 699 46 40 Hathway IP Over Cable Interne
7545 634 142 81 TPG Internet Pty Ltd
18101 554 117 35 Reliance Infocom Ltd Internet
1221 549 1954 423 Telstra Pty Ltd
4668 507 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
9443 465 121 77 Primus Telecommunications
4812 463 835 77 China Telecom (Shanghai)
7474 410 218 269 SingTel Optus Pty Ltd
4802 408 86 147 Wantree Development
9829 363 258 15 BSNL National Internet Backbo
2907 360 1700 302 SINET Japan
17557 354 40 169 Pakistan Telecom
4837 346 4805 160 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1498 6128 989 AT&T WorldNet Services
4323 1274 1033 368 Time Warner Telecom
2386 1150 597 759 AT&T Data Communications Serv
6478 1105 362 125 AT&T Worldnet Services
11492 1075 105 23 Cable One
6197 1040 707 509 BellSouth Network Solutions,
18566 1010 288 9 Covad Communications
701 957 6615 733 UUNET Technologies, Inc.
174 956 6777 867 Cogent Communications
1239 815 2731 578 Sprint
7011 806 229 482 Citizens Utilities
20115 800 726 426 Charter Communications
19262 774 2694 206 Verizon Global Networks
209 740 3834 576 Qwest
22773 716 1892 44 Cox Communications, Inc.
5668 603 160 17 CenturyTel Internet Holdings,
7385 602 169 469 Linkport Communications
7029 597 488 80 Alltel Information Services,
852 589 1090 371 Telus Advanced Communications
855 568 252 72 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 515 1938 406 UUNET - Commercial IP service
2119 509 918 381 Telenor Internet Access
24863 349 56 34 LINKdotNET AS number
3301 311 1455 290 TeliaNet Sweden
3320 305 6018 255 Deutsche Telekom AG
6746 279 128 255 Dynamic Network Technologies,
680 260 2044 251 DFN-IP service G-WiN
3215 249 2296 95 France Telecom Transpac
8220 249 444 241 COLT Telecommunications
8708 237 416 230 Romania Data Systems S.A.
5089 221 1658 53 NTL Group Limited
3269 216 2647 74 TELECOM ITALIA
3352 216 1864 37 Ibernet, Internet Access Netw
9121 209 1441 24 TTnet Autonomous System
8551 207 197 27 Bezeq International
9116 198 136 25 Goldenlines main autonomous s
3246 197 331 187 Song Networks
1257 196 1196 174 SWIPnet Swedish IP Network
12479 188 578 6 Uni2 Autonomous System
30890 184 15 92 SC Kappa Invexim SRL
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 837 1855 210 UniNet S.A. de C.V.
11830 483 299 19 Instituto Costarricense de El
11172 367 116 63 Servicios Alestra S.A de C.V
16814 361 22 8 NSS, S.A.
22047 316 238 12 VTR PUNTO NET S.A.
7303 289 143 30 Telecom Argentina Stet-France
6471 268 74 32 ENTEL CHILE S.A.
14117 253 19 15 Telefonica del Sur S.A.
11556 231 128 4 Cable-Wireless Panama
6147 224 168 25 Telefonica Del Peru
6503 212 188 84 AVANTEL, S.A.
20299 195 23 12 NEWCOM AMERICAS
10620 187 53 25 TVCABLE BOGOTA
10481 181 72 8 Prima S.A.
14522 167 27 8 SatNet S.A.
7910 157 11 31 ANDINET ON LINE
23216 157 19 42 RAMtelecom Telecomunicaciones
21826 155 27 60 INTERCABLE
19429 153 79 42 E.T.B.
7738 146 474 22 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 279 866 220 The Internet Solution
8452 228 188 7 TEDATA
6713 143 135 11 Itissalat Al-MAGHRIB
2018 136 301 111 Tertiary Education Network
15475 136 84 4 Nile Online
5536 123 8 15 Internet Egypt Network
33783 119 8 9 EEPAD TISP TELECOM & INTERNET
24835 85 48 6 RAYA Telecom - Egypt
2905 77 174 73 The Internetworking Company o
2561 61 6 2 Egyptian Universities Network
15706 56 12 4 Sudatel Internet Exchange Aut
23889 49 16 13 MAURITIUS TELECOM
5713 44 294 34 Telkom SA Ltd
33774 42 13 23 AS Number for Telecom Algeria
16637 37 21 29 Johnnic e-Ventures
8524 32 2 8 AUCEGYPT Autonomous System
33776 30 2 7 Starcomms Nigeria Limited
21280 27 4 4 Swift Global Kenya Ltd.Is an
12455 26 6 3 Jambonet Autonomous system
10798 24 2 15 Standard Bank of South Africa
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1231 1160 Videsh Sanchar Nigam Ltd. Aut
11492 1075 1052 Cable One
4134 1290 1011 CHINANET-BACKBONE
18566 1010 1001 Covad Communications
6478 1105 980 AT&T Worldnet Services
9498 996 929 BHARTI BT INTERNET LTD.
4323 1274 906 Time Warner Telecom
9583 1102 715 Sify Limited
22773 716 672 Cox Communications, Inc.
17488 699 659 Hathway IP Over Cable Interne
8151 837 627 UniNet S.A. de C.V.
5668 603 586 CenturyTel Internet Holdings,
19262 774 568 Verizon Global Networks
7545 634 553 TPG Internet Pty Ltd
6197 1040 531 BellSouth Network Solutions,
18101 554 519 Reliance Infocom Ltd Internet
7029 597 517 Alltel Information Services,
19916 568 517 OLM LLC
15270 544 509 PaeTec.net -a division of Pae
4668 507 497 LG-EDS Systems Inc.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65019 PRIVATE 63.138.117.0/24 19034 Norcom Networks Corp
65332 PRIVATE 63.166.106.192/27 1803 SPRINT
65001 PRIVATE 82.213.31.0/24 12975 PALTEL Autonomous Sy
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
22895 UNALLOCATED 216.174.38.0/24 19094 Adelphia Business So
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
7.1.1.0/24 1239 Sprint
94.110.196.0/24 21161 Bechtle Autonomous System
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 /8:19 /9:9 /10:15 /11:34 /12:124
/13:239 /14:453 /15:876 /16:9433 /17:3988 /18:6383
/19:13522 /20:15546 /21:14106 /22:18392 /23:19526 /24:117467
/25:777 /26:826 /27:479 /28:70 /29:10 /30:12
/31:0 /32:13
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1095 1105 AT&T Worldnet Services
11492 1066 1075 Cable One
18566 992 1010 Covad Communications
9583 942 1102 Sify Limited
2386 851 1150 AT&T Data Communications Serv
7018 810 1498 AT&T WorldNet Services
6197 794 1040 BellSouth Network Solutions,
23577 765 779 Korea Telecom (ATM-MPLS)
7011 707 806 Citizens Utilities
9498 665 996 BHARTI BT INTERNET LTD.
4755 625 1231 Videsh Sanchar Nigam Ltd. Aut
4766 593 786 Korea Telecom (KIX)
19916 563 568 OLM LLC
4323 522 1274 Time Warner Telecom
17488 520 699 Hathway IP Over Cable Interne
15270 511 544 PaeTec.net -a division of Pae
4668 497 507 LG-EDS Systems Inc.
18101 470 554 Reliance Infocom Ltd Internet
5668 468 603 CenturyTel Internet Holdings,
855 466 568 Canadian Research Network
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 7:1 8:81 9:1 12:1809 15:19
16:3 17:3 18:8 20:38 24:924 25:1
32:51 33:2 38:320 40:61 41:153 44:2
47:5 52:4 55:3 56:3 57:24 58:417
59:403 60:301 61:967 62:917 63:1976 64:3124
65:2358 66:3301 67:812 68:630 69:1880 70:515
71:107 72:1333 73:1 74:493 75:260 76:79
77:227 78:2 80:822 81:800 82:645 83:385
84:407 85:818 86:346 87:455 88:278 89:892
90:7 91:348 94:1 97:6 98:3 116:107
121:162 122:538 123:108 124:815 125:944 128:279
129:225 130:135 131:367 132:52 133:9 134:192
135:38 136:185 137:80 138:141 139:70 140:479
141:171 142:370 143:233 144:291 145:43 146:320
147:120 148:401 149:143 150:115 151:158 152:92
153:125 154:4 155:254 156:152 157:186 158:158
159:157 160:107 161:92 162:233 163:185 164:450
165:395 166:241 167:284 168:501 169:120 170:402
171:15 172:1 189:69 190:651 192:5770 193:3870
194:3143 195:2243 196:914 198:3759 199:3286 200:4863
201:1026 202:7341 203:7516 204:3969 205:2030 206:2353
207:2860 208:2707 209:3583 210:2472 211:967 212:1312
213:1474 214:418 215:40 216:4036 217:1145 218:357
219:380 220:963 221:402 222:262
End of report
