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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 21 May, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/05/21/0400
Analysis Summary
----------------
BGP routing table entries examined: 220852
Prefixes after maximum aggregation: 117411
Deaggregation factor: 1.88
Unique aggregates announced to Internet: 107101
Total ASes present in the Internet Routing Table: 25212
Prefixes per ASN: 8.76
Origin-only ASes present in the Internet Routing Table: 21960
Origin ASes announcing only one prefix: 10641
Transit ASes present in the Internet Routing Table: 3252
Transit-only ASes present in the Internet Routing Table: 77
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 22
Max AS path prepend of ASN (15941) 12
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: 11
Number of addresses announced to Internet: 1719861248
Equivalent to 102 /8s, 131 /16s and 0 /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: 115803
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 50942
Total APNIC prefixes after maximum aggregation: 20297
APNIC Deaggregation factor: 2.51
Prefixes being announced from the APNIC address blocks: 47949
Unique aggregates announced from the APNIC address blocks: 21233
APNIC Region origin ASes present in the Internet Routing Table: 2945
APNIC Prefixes per ASN: 16.28
APNIC Region origin ASes announcing only one prefix: 789
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: 293355712
Equivalent to 17 /8s, 124 /16s and 64 /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: 106527
Total ARIN prefixes after maximum aggregation: 62121
ARIN Deaggregation factor: 1.71
Prefixes being announced from the ARIN address blocks: 78556
Unique aggregates announced from the ARIN address blocks: 30673
ARIN Region origin ASes present in the Internet Routing Table: 11575
ARIN Prefixes per ASN: 6.79
ARIN Region origin ASes announcing only one prefix: 4443
ARIN Region transit ASes present in the Internet Routing Table: 1052
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 333575040
Equivalent to 19 /8s, 225 /16s and 243 /24s
Percentage of available ARIN address space announced: 73.6
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: 45631
Total RIPE prefixes after maximum aggregation: 29837
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 42144
Unique aggregates announced from the RIPE address blocks: 28158
RIPE Region origin ASes present in the Internet Routing Table: 9636
RIPE Prefixes per ASN: 4.37
RIPE Region origin ASes announcing only one prefix: 5097
RIPE Region transit ASes present in the Internet Routing Table: 1551
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 306123904
Equivalent to 18 /8s, 63 /16s and 20 /24s
Percentage of available RIPE address space announced: 76.0
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: 15168
Total LACNIC prefixes after maximum aggregation: 4146
LACNIC Deaggregation factor: 3.66
Prefixes being announced from the LACNIC address blocks: 13253
Unique aggregates announced from the LACNIC address blocks: 7251
LACNIC Region origin ASes present in the Internet Routing Table: 791
LACNIC Prefixes per ASN: 16.75
LACNIC Region origin ASes announcing only one prefix: 258
LACNIC Region transit ASes present in the Internet Routing Table: 140
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 17
Number of LACNIC addresses announced to Internet: 38861312
Equivalent to 2 /8s, 80 /16s and 250 /24s
Percentage of available LACNIC address space announced: 57.9
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: 2574
Total AfriNIC prefixes after maximum aggregation: 1000
AfriNIC Deaggregation factor: 2.57
Prefixes being announced from the AfriNIC address blocks: 1953
Unique aggregates announced from the AfriNIC address blocks: 1176
AfriNIC Region origin ASes present in the Internet Routing Table: 187
AfriNIC Prefixes per ASN: 10.44
AfriNIC Region origin ASes announcing only one prefix: 54
AfriNIC Region transit ASes present in the Internet Routing Table: 37
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 6057984
Equivalent to 0 /8s, 92 /16s and 112 /24s
Percentage of available AfriNIC address space announced: 18.1
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 1281 9697 273 CHINANET-BACKBONE
4755 1214 383 72 Videsh Sanchar Nigam Ltd. Aut
9583 1110 79 382 Sify Limited
9498 980 469 71 BHARTI BT INTERNET LTD.
4766 783 4943 312 Korea Telecom (KIX)
23577 778 35 707 Korea Telecom (ATM-MPLS)
17488 675 44 35 Hathway IP Over Cable Interne
7545 624 142 78 TPG Internet Pty Ltd
1221 547 1954 422 Telstra Pty Ltd
18101 539 116 34 Reliance Infocom Ltd Internet
4668 508 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
4812 459 807 76 China Telecom (Shanghai)
9443 454 115 74 Primus Telecommunications
7474 414 218 270 SingTel Optus Pty Ltd
4802 408 86 147 Wantree Development
9829 362 258 14 BSNL National Internet Backbo
17557 354 37 167 Pakistan Telecom
17974 350 129 12 PT TELEKOMUNIKASI INDONESIA
4837 343 4693 158 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1494 6159 985 AT&T WorldNet Services
4323 1269 1027 362 Time Warner Telecom
2386 1151 596 757 AT&T Data Communications Serv
6478 1099 342 124 AT&T Worldnet Services
11492 1055 104 23 Cable One
6197 1032 687 507 BellSouth Network Solutions,
18566 1007 288 9 Covad Communications
174 953 6791 863 Cogent Communications
701 952 6613 728 UUNET Technologies, Inc.
1239 818 2731 579 Sprint
20115 808 725 429 Charter Communications
7011 793 226 474 Citizens Utilities
19262 775 2645 208 Verizon Global Networks
209 726 3848 582 Qwest
22773 716 1888 43 Cox Communications, Inc.
5668 599 160 17 CenturyTel Internet Holdings,
7385 597 166 463 Linkport Communications
721 593 21739 269 DLA Systems Automation Center
852 590 1098 371 Telus Advanced Communications
7029 587 456 79 Alltel Information Services,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 518 1939 411 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 240 2256 92 France Telecom Transpac
8708 235 287 228 Romania Data Systems S.A.
3269 216 2647 74 TELECOM ITALIA
8551 206 196 30 Bezeq International
3246 202 337 192 Song Networks
3352 201 1783 37 Ibernet, Internet Access Netw
30890 201 17 93 SC Kappa Invexim SRL
20858 197 34 4 EgyNet
9116 196 136 25 Goldenlines main autonomous s
1257 190 1180 168 SWIPnet Swedish IP Network
12479 184 578 6 Uni2 Autonomous System
3300 183 171 89 AUCS Communications Services
786 177 1795 177 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1248 1869 213 UniNet S.A. de C.V.
11830 483 299 19 Instituto Costarricense de El
11172 365 116 63 Servicios Alestra S.A de C.V
16814 361 22 8 NSS, S.A.
22047 318 238 12 VTR PUNTO NET S.A.
7303 281 143 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 204 170 80 AVANTEL, S.A.
20299 194 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 153 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 228 188 7 TEDATA
6713 143 135 11 Itissalat Al-MAGHRIB
2018 136 301 111 Tertiary Education Network
15475 129 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 33 21 25 Johnnic e-Ventures
8524 30 2 6 AUCEGYPT Autonomous System
33766 26 2 1 Nyala Communications Pty Ltd
33776 26 2 8 Starcomms Nigeria Limited
12455 25 6 3 Jambonet Autonomous system
21280 25 4 4 Swift Global Kenya Ltd.Is an
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1214 1142 Videsh Sanchar Nigam Ltd. Aut
8151 1248 1035 UniNet S.A. de C.V.
11492 1055 1032 Cable One
4134 1281 1008 CHINANET-BACKBONE
18566 1007 998 Covad Communications
6478 1099 975 AT&T Worldnet Services
9498 980 909 BHARTI BT INTERNET LTD.
4323 1269 907 Time Warner Telecom
9583 1110 728 Sify Limited
22773 716 673 Cox Communications, Inc.
17488 675 640 Hathway IP Over Cable Interne
5668 599 582 CenturyTel Internet Holdings,
19262 775 567 Verizon Global Networks
7545 624 546 TPG Internet Pty Ltd
6197 1032 525 BellSouth Network Solutions,
19916 568 517 OLM LLC
7029 587 508 Alltel Information Services,
18101 539 505 Reliance Infocom Ltd Internet
15270 534 499 PaeTec.net -a division of Pae
4668 508 498 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
65242 PRIVATE 64.222.142.0/24 13674 Bell Atlantic Global
64858 PRIVATE 84.36.180.0/24 20858 EgyNet
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 /14:451 /15:869 /16:9380 /17:3860 /18:6379
/19:13464 /20:15369 /21:13919 /22:18146 /23:19345 /24:117079
/25:775 /26:824 /27:482 /28:61 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1090 1099 AT&T Worldnet Services
11492 1041 1055 Cable One
18566 989 1007 Covad Communications
9583 948 1110 Sify Limited
2386 846 1151 AT&T Data Communications Serv
7018 803 1494 AT&T WorldNet Services
6197 792 1032 BellSouth Network Solutions,
23577 764 778 Korea Telecom (ATM-MPLS)
7011 695 793 Citizens Utilities
9498 648 980 BHARTI BT INTERNET LTD.
8151 624 1248 UniNet S.A. de C.V.
4755 610 1214 Videsh Sanchar Nigam Ltd. Aut
4766 590 783 Korea Telecom (KIX)
19916 563 568 OLM LLC
4323 526 1269 Time Warner Telecom
15270 501 534 PaeTec.net -a division of Pae
4668 497 508 LG-EDS Systems Inc.
17488 496 675 Hathway IP Over Cable Interne
855 464 566 Canadian Research Network
5668 464 599 CenturyTel Internet Holdings,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:72 9:1 12:1802 15:19
16:3 17:3 18:8 20:38 24:943 25:1
32:52 33:2 38:313 40:60 41:125 44:2
47:5 52:4 55:2 56:3 57:25 58:398
59:385 60:271 61:943 62:974 63:1977 64:3115
65:2366 66:3266 67:812 68:639 69:1833 70:515
71:105 72:1325 73:1 74:460 75:259 76:58
77:192 78:1 80:852 81:804 82:571 83:372
84:443 85:755 86:353 87:463 88:268 89:870
90:7 91:303 97:6 116:73 121:184 122:524
123:101 124:810 125:933 128:281 129:222 130:127
131:366 132:52 133:10 134:192 135:39 136:185
137:80 138:139 139:70 140:474 141:170 142:368
143:234 144:291 145:43 146:322 147:117 148:384
149:143 150:114 151:160 152:92 153:123 154:4
155:253 156:151 157:188 158:160 159:159 160:106
161:91 162:234 163:185 164:447 165:403 166:239
167:281 168:497 169:120 170:401 171:16 172:1
189:469 190:617 192:5761 193:3846 194:3123 195:2216
196:940 198:3730 199:3289 200:4769 201:1015 202:7276
203:7533 204:3953 205:2073 206:2358 207:2884 208:2690
209:3578 210:2484 211:965 212:1286 213:1476 214:406
215:40 216:4006 217:1151 218:357 219:363 220:948
221:400 222:264
End of report
