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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 24 May, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/05/24/0400
Analysis Summary
----------------
BGP routing table entries examined: 221193
Prefixes after maximum aggregation: 117573
Deaggregation factor: 1.88
Unique aggregates announced to Internet: 107396
Total ASes present in the Internet Routing Table: 25258
Prefixes per ASN: 8.76
Origin-only ASes present in the Internet Routing Table: 22007
Origin ASes announcing only one prefix: 10664
Transit ASes present in the Internet Routing Table: 3251
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: 24
Max AS path prepend of ASN (16327) 21
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: 7
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1720808672
Equivalent to 102 /8s, 145 /16s and 116 /24s
Percentage of available address space announced: 46.4
Percentage of allocated address space announced: 61.5
Percentage of available address space allocated: 75.5
Total number of prefixes smaller than registry allocations: 116004
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 50942
Total APNIC prefixes after maximum aggregation: 20305
APNIC Deaggregation factor: 2.51
Prefixes being announced from the APNIC address blocks: 47946
Unique aggregates announced from the APNIC address blocks: 21261
APNIC Region origin ASes present in the Internet Routing Table: 2950
APNIC Prefixes per ASN: 16.25
APNIC Region origin ASes announcing only one prefix: 793
APNIC Region transit ASes present in the Internet Routing Table: 442
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 293541024
Equivalent to 17 /8s, 127 /16s and 20 /24s
Percentage of available APNIC address space announced: 72.7
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: 106686
Total ARIN prefixes after maximum aggregation: 62193
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 78680
Unique aggregates announced from the ARIN address blocks: 30784
ARIN Region origin ASes present in the Internet Routing Table: 11591
ARIN Prefixes per ASN: 6.79
ARIN Region origin ASes announcing only one prefix: 4455
ARIN Region transit ASes present in the Internet Routing Table: 1049
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 333715584
Equivalent to 19 /8s, 228 /16s and 24 /24s
Percentage of available ARIN address space announced: 73.7
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: 45692
Total RIPE prefixes after maximum aggregation: 29896
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 42196
Unique aggregates announced from the RIPE address blocks: 28227
RIPE Region origin ASes present in the Internet Routing Table: 9655
RIPE Prefixes per ASN: 4.37
RIPE Region origin ASes announcing only one prefix: 5103
RIPE Region transit ASes present in the Internet Routing Table: 1554
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 24
Number of RIPE addresses announced to Internet: 306634880
Equivalent to 18 /8s, 70 /16s and 224 /24s
Percentage of available RIPE address space announced: 76.2
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, 80/5, 88/6, 92/7, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 15283
Total LACNIC prefixes after maximum aggregation: 4167
LACNIC Deaggregation factor: 3.67
Prefixes being announced from the LACNIC address blocks: 13352
Unique aggregates announced from the LACNIC address blocks: 7303
LACNIC Region origin ASes present in the Internet Routing Table: 797
LACNIC Prefixes per ASN: 16.75
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: 38907648
Equivalent to 2 /8s, 81 /16s and 175 /24s
Percentage of available LACNIC address space announced: 58.0
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: 2579
Total AfriNIC prefixes after maximum aggregation: 1000
AfriNIC Deaggregation factor: 2.58
Prefixes being announced from the AfriNIC address blocks: 1965
Unique aggregates announced from the AfriNIC address blocks: 1186
AfriNIC Region origin ASes present in the Internet Routing Table: 189
AfriNIC Prefixes per ASN: 10.40
AfriNIC Region origin ASes announcing only one prefix: 57
AfriNIC Region transit ASes present in the Internet Routing Table: 35
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 6124288
Equivalent to 0 /8s, 93 /16s and 115 /24s
Percentage of available AfriNIC address space announced: 18.3
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 1284 9710 275 CHINANET-BACKBONE
4755 1222 383 72 Videsh Sanchar Nigam Ltd. Aut
9583 1107 79 380 Sify Limited
9498 981 469 71 BHARTI BT INTERNET LTD.
4766 783 4943 312 Korea Telecom (KIX)
23577 777 35 707 Korea Telecom (ATM-MPLS)
17488 691 45 36 Hathway IP Over Cable Interne
7545 620 142 77 TPG Internet Pty Ltd
1221 548 1954 423 Telstra Pty Ltd
18101 546 116 36 Reliance Infocom Ltd Internet
4668 505 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
4812 458 807 76 China Telecom (Shanghai)
9443 455 115 74 Primus Telecommunications
7474 410 218 269 SingTel Optus Pty Ltd
4802 409 86 148 Wantree Development
9829 361 258 14 BSNL National Internet Backbo
17557 356 37 169 Pakistan Telecom
17974 348 129 12 PT TELEKOMUNIKASI INDONESIA
4837 342 4693 157 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1503 6163 990 AT&T WorldNet Services
4323 1268 1032 364 Time Warner Telecom
2386 1151 596 758 AT&T Data Communications Serv
6478 1097 342 125 AT&T Worldnet Services
11492 1071 104 24 Cable One
6197 1038 704 506 BellSouth Network Solutions,
18566 1009 288 9 Covad Communications
701 957 6597 733 UUNET Technologies, Inc.
174 952 6791 862 Cogent Communications
1239 819 2731 581 Sprint
20115 807 724 428 Charter Communications
7011 798 227 475 Citizens Utilities
19262 776 2645 209 Verizon Global Networks
209 740 3848 581 Qwest
22773 719 1888 43 Cox Communications, Inc.
5668 598 160 17 CenturyTel Internet Holdings,
7385 597 166 463 Linkport Communications
852 590 1098 371 Telus Advanced Communications
7029 587 456 79 Alltel Information Services,
721 584 21675 267 DLA Systems Automation Center
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 519 1939 412 UUNET - Commercial IP service
24863 346 47 32 LINKdotNET AS number
3301 308 1455 288 TeliaNet Sweden
3320 306 4994 253 Deutsche Telekom AG
6746 278 128 254 Dynamic Network Technologies,
680 257 2044 250 DFN-IP service G-WiN
8220 249 459 240 COLT Telecommunications
3215 243 2276 95 France Telecom Transpac
8708 235 287 228 Romania Data Systems S.A.
3352 233 1799 36 Ibernet, Internet Access Netw
3269 216 2647 74 TELECOM ITALIA
8551 206 196 30 Bezeq International
3246 202 337 192 Song Networks
9116 197 136 25 Goldenlines main autonomous s
1257 190 1180 168 SWIPnet Swedish IP Network
12479 184 578 6 Uni2 Autonomous System
30890 184 15 91 SC Kappa Invexim SRL
3300 183 171 89 AUCS Communications Services
786 176 1795 176 The JANET IP Service
5089 174 1658 53 NTL Group Limited
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1293 1870 212 UniNet S.A. de C.V.
11830 483 299 19 Instituto Costarricense de El
11172 366 116 63 Servicios Alestra S.A de C.V
16814 361 22 8 NSS, S.A.
22047 317 238 12 VTR PUNTO NET S.A.
7303 284 143 29 Telecom Argentina Stet-France
6471 259 74 31 ENTEL CHILE S.A.
14117 243 17 14 Telefonica del Sur S.A.
11556 229 128 3 Cable-Wireless Panama
6147 222 168 25 Telefonica Del Peru
6503 215 172 86 AVANTEL, S.A.
20299 195 23 12 NEWCOM AMERICAS
10620 186 53 24 TVCABLE BOGOTA
10481 181 72 8 Prima S.A.
14522 167 27 8 SatNet S.A.
23216 157 19 42 RAMtelecom Telecomunicaciones
21826 155 27 59 INTERCABLE
7910 154 11 29 ANDINET ON LINE
19429 154 94 43 E.T.B.
7738 143 474 22 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 283 867 224 The Internet Solution
8452 229 188 7 TEDATA
6713 143 135 11 Itissalat Al-MAGHRIB
2018 136 301 111 Tertiary Education Network
15475 134 84 4 Nile Online
5536 123 8 15 Internet Egypt Network
33783 118 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 33 21 25 Johnnic e-Ventures
8524 30 2 6 AUCEGYPT Autonomous System
21280 28 4 4 Swift Global Kenya Ltd.Is an
33776 28 2 6 Starcomms Nigeria Limited
33766 26 2 1 Nyala Communications Pty Ltd
12455 25 6 3 Jambonet Autonomous system
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1222 1150 Videsh Sanchar Nigam Ltd. Aut
8151 1293 1081 UniNet S.A. de C.V.
11492 1071 1047 Cable One
4134 1284 1009 CHINANET-BACKBONE
18566 1009 1000 Covad Communications
6478 1097 972 AT&T Worldnet Services
9498 981 910 BHARTI BT INTERNET LTD.
4323 1268 904 Time Warner Telecom
9583 1107 727 Sify Limited
22773 719 676 Cox Communications, Inc.
17488 691 655 Hathway IP Over Cable Interne
5668 598 581 CenturyTel Internet Holdings,
19262 776 567 Verizon Global Networks
7545 620 543 TPG Internet Pty Ltd
6197 1038 532 BellSouth Network Solutions,
19916 568 517 OLM LLC
18101 546 510 Reliance Infocom Ltd Internet
7029 587 508 Alltel Information Services,
15270 535 500 PaeTec.net -a division of Pae
855 566 495 Canadian Research Network
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65019 PRIVATE 63.138.117.0/24 19034 Norcom Networks Corp
65242 PRIVATE 64.222.142.0/24 13674 Bell Atlantic Global
64858 PRIVATE 84.36.180.0/24 20858 EgyNet
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
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 /10:14 /11:35 /12:122
/13:237 /14:450 /15:868 /16:9401 /17:3879 /18:6379
/19:13496 /20:15429 /21:13954 /22:18171 /23:19364 /24:117225
/25:770 /26:825 /27:471 /28:62 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1088 1097 AT&T Worldnet Services
11492 1057 1071 Cable One
18566 991 1009 Covad Communications
9583 946 1107 Sify Limited
2386 846 1151 AT&T Data Communications Serv
7018 808 1503 AT&T WorldNet Services
6197 795 1038 BellSouth Network Solutions,
23577 763 777 Korea Telecom (ATM-MPLS)
7011 699 798 Citizens Utilities
8151 671 1293 UniNet S.A. de C.V.
9498 652 981 BHARTI BT INTERNET LTD.
4755 618 1222 Videsh Sanchar Nigam Ltd. Aut
4766 590 783 Korea Telecom (KIX)
19916 563 568 OLM LLC
4323 526 1268 Time Warner Telecom
17488 512 691 Hathway IP Over Cable Interne
15270 502 535 PaeTec.net -a division of Pae
4668 495 505 LG-EDS Systems Inc.
18101 466 546 Reliance Infocom Ltd Internet
855 464 566 Canadian Research Network
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 7:1 8:73 9:1 12:1802 15:19
16:3 17:3 18:8 20:38 24:946 25:1
32:52 33:2 38:313 40:61 41:131 44:2
47:5 52:4 55:3 56:3 57:25 58:394
59:389 60:293 61:946 62:893 63:1978 64:3117
65:2362 66:3269 67:813 68:637 69:1838 70:516
71:104 72:1330 73:1 74:480 75:261 76:59
77:204 78:2 80:850 81:801 82:576 83:381
84:408 85:762 86:344 87:464 88:273 89:863
90:7 91:312 97:6 116:79 121:186 122:531
123:103 124:809 125:935 128:282 129:222 130:128
131:365 132:52 133:10 134:192 135:38 136:185
137:80 138:139 139:70 140:476 141:170 142:368
143:234 144:291 145:43 146:323 147:118 148:394
149:142 150:115 151:159 152:92 153:123 154:4
155:254 156:151 157:186 158:159 159:158 160:106
161:91 162:235 163:185 164:450 165:404 166:239
167:283 168:498 169:120 170:401 171:16 172:1
189:515 190:620 192:5761 193:3847 194:3130 195:2220
196:944 198:3743 199:3297 200:4771 201:1030 202:7272
203:7525 204:3958 205:2069 206:2360 207:2883 208:2692
209:3593 210:2462 211:964 212:1306 213:1468 214:414
215:40 216:4035 217:1151 218:360 219:363 220:935
221:402 222:262
End of report
