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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 16 May, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/05/16/0400
Analysis Summary
----------------
BGP routing table entries examined: 220247
Prefixes after maximum aggregation: 116901
Deaggregation factor: 1.88
Unique aggregates announced to Internet: 105853
Total ASes present in the Internet Routing Table: 25192
Prefixes per ASN: 8.74
Origin-only ASes present in the Internet Routing Table: 21934
Origin ASes announcing only one prefix: 10615
Transit ASes present in the Internet Routing Table: 3258
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: 25
Max AS path prepend of ASN (15941) 12
Prefixes from unregistered ASNs in the Routing Table: 6
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: 1718340032
Equivalent to 102 /8s, 107 /16s and 201 /24s
Percentage of available address space announced: 46.4
Percentage of allocated address space announced: 61.4
Percentage of available address space allocated: 75.5
Total number of prefixes smaller than registry allocations: 115365
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 50600
Total APNIC prefixes after maximum aggregation: 19851
APNIC Deaggregation factor: 2.55
Prefixes being announced from the APNIC address blocks: 47618
Unique aggregates announced from the APNIC address blocks: 20072
APNIC Region origin ASes present in the Internet Routing Table: 2942
APNIC Prefixes per ASN: 16.19
APNIC Region origin ASes announcing only one prefix: 785
APNIC Region transit ASes present in the Internet Routing Table: 440
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 292962496
Equivalent to 17 /8s, 118 /16s and 64 /24s
Percentage of available APNIC address space announced: 72.6
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: 106363
Total ARIN prefixes after maximum aggregation: 62091
ARIN Deaggregation factor: 1.71
Prefixes being announced from the ARIN address blocks: 78433
Unique aggregates announced from the ARIN address blocks: 30665
ARIN Region origin ASes present in the Internet Routing Table: 11573
ARIN Prefixes per ASN: 6.78
ARIN Region origin ASes announcing only one prefix: 4442
ARIN Region transit ASes present in the Internet Routing Table: 1047
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 332420224
Equivalent to 19 /8s, 208 /16s and 84 /24s
Percentage of available ARIN address space announced: 73.4
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: 45607
Total RIPE prefixes after maximum aggregation: 29814
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 42137
Unique aggregates announced from the RIPE address blocks: 28163
RIPE Region origin ASes present in the Internet Routing Table: 9622
RIPE Prefixes per ASN: 4.38
RIPE Region origin ASes announcing only one prefix: 5077
RIPE Region transit ASes present in the Internet Routing Table: 1555
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 306084224
Equivalent to 18 /8s, 62 /16s and 121 /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: 15084
Total LACNIC prefixes after maximum aggregation: 4128
LACNIC Deaggregation factor: 3.65
Prefixes being announced from the LACNIC address blocks: 13180
Unique aggregates announced from the LACNIC address blocks: 7207
LACNIC Region origin ASes present in the Internet Routing Table: 788
LACNIC Prefixes per ASN: 16.73
LACNIC Region origin ASes announcing only one prefix: 256
LACNIC Region transit ASes present in the Internet Routing Table: 143
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 38854400
Equivalent to 2 /8s, 80 /16s and 223 /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: 2583
Total AfriNIC prefixes after maximum aggregation: 1007
AfriNIC Deaggregation factor: 2.57
Prefixes being announced from the AfriNIC address blocks: 1949
Unique aggregates announced from the AfriNIC address blocks: 1183
AfriNIC Region origin ASes present in the Internet Routing Table: 189
AfriNIC Prefixes per ASN: 10.31
AfriNIC Region origin ASes announcing only one prefix: 55
AfriNIC Region transit ASes present in the Internet Routing Table: 36
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 6034432
Equivalent to 0 /8s, 92 /16s and 20 /24s
Percentage of available AfriNIC address space announced: 18.0
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 1281 9601 275 CHINANET-BACKBONE
4755 1214 383 72 Videsh Sanchar Nigam Ltd. Aut
9583 1018 109 16 Sify Limited
9498 979 469 72 BHARTI BT INTERNET LTD.
4766 784 4943 312 Korea Telecom (KIX)
23577 778 35 707 Korea Telecom (ATM-MPLS)
17488 676 44 35 Hathway IP Over Cable Interne
7545 615 142 78 TPG Internet Pty Ltd
1221 547 1954 422 Telstra Pty Ltd
18101 535 116 32 Reliance Infocom Ltd Internet
4668 508 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
4812 460 807 76 China Telecom (Shanghai)
9443 452 115 74 Primus Telecommunications
7474 414 218 270 SingTel Optus Pty Ltd
4802 357 86 145 Wantree Development
17974 350 129 12 PT TELEKOMUNIKASI INDONESIA
4837 343 4693 158 chinanet IDC center beijing n
9829 339 274 14 BSNL National Internet Backbo
17557 339 36 164 Pakistan Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1505 6149 996 AT&T WorldNet Services
4323 1263 1027 361 Time Warner Telecom
2386 1130 580 750 AT&T Data Communications Serv
6478 1095 339 133 AT&T Worldnet Services
11492 1049 104 23 Cable One
6197 1036 688 503 BellSouth Network Solutions,
18566 1006 288 9 Covad Communications
174 965 6792 873 Cogent Communications
701 962 6661 734 UUNET Technologies, Inc.
20115 819 743 429 Charter Communications
1239 815 2715 576 Sprint
7011 792 226 473 Citizens Utilities
19262 772 2644 209 Verizon Global Networks
209 730 3848 584 Qwest
22773 714 1888 43 Cox Communications, Inc.
5668 601 160 17 CenturyTel Internet Holdings,
721 596 21755 271 DLA Systems Automation Center
852 589 1096 370 Telus Advanced Communications
7029 587 456 79 Alltel Information Services,
7385 576 164 450 Linkport Communications
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 522 1941 415 UUNET - Commercial IP service
24863 344 47 30 LINKdotNET AS number
3301 308 1455 288 TeliaNet Sweden
3320 304 4993 252 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 238 2254 95 France Telecom Transpac
8708 235 287 228 Romania Data Systems S.A.
3269 216 2647 74 TELECOM ITALIA
3246 208 340 198 Song Networks
8551 206 196 30 Bezeq International
3352 203 1783 37 Ibernet, Internet Access Netw
30890 201 17 93 SC Kappa Invexim SRL
20858 196 34 4 EgyNet
9116 194 136 25 Goldenlines main autonomous s
1257 190 1180 168 SWIPnet Swedish IP Network
3300 184 171 90 AUCS Communications Services
12479 184 578 6 Uni2 Autonomous System
786 177 1795 177 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1208 1870 212 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 280 143 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 221 166 25 Telefonica Del Peru
6503 216 172 86 AVANTEL, S.A.
20299 190 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 152 93 42 E.T.B.
19169 143 9 26 Telconet
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 282 867 224 The Internet Solution
8452 229 188 7 TEDATA
6713 143 135 11 Itissalat Al-MAGHRIB
2018 136 301 111 Tertiary Education Network
15475 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 43 13 24 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
33766 26 2 1 Nyala Communications Pty Ltd
33776 26 2 8 Starcomms Nigeria Limited
12455 25 6 3 Jambonet Autonomous system
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1214 1142 Videsh Sanchar Nigam Ltd. Aut
11492 1049 1026 Cable One
4134 1281 1006 CHINANET-BACKBONE
9583 1018 1002 Sify Limited
18566 1006 997 Covad Communications
8151 1208 996 UniNet S.A. de C.V.
6478 1095 962 AT&T Worldnet Services
9498 979 907 BHARTI BT INTERNET LTD.
4323 1263 902 Time Warner Telecom
22773 714 671 Cox Communications, Inc.
17488 676 641 Hathway IP Over Cable Interne
5668 601 584 CenturyTel Internet Holdings,
19262 772 563 Verizon Global Networks
7545 615 537 TPG Internet Pty Ltd
6197 1036 533 BellSouth Network Solutions,
19916 568 517 OLM LLC
7029 587 508 Alltel Information Services,
18101 535 503 Reliance Infocom Ltd Internet
15270 533 498 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
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 /11:34 /12:123
/13:237 /14:450 /15:868 /16:9381 /17:3854 /18:6400
/19:13469 /20:15367 /21:13907 /22:18016 /23:19258 /24:116682
/25:779 /26:828 /27:478 /28:61 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1086 1095 AT&T Worldnet Services
11492 1035 1049 Cable One
18566 988 1006 Covad Communications
9583 864 1018 Sify Limited
2386 826 1130 AT&T Data Communications Serv
7018 813 1505 AT&T WorldNet Services
6197 796 1036 BellSouth Network Solutions,
23577 764 778 Korea Telecom (ATM-MPLS)
7011 695 792 Citizens Utilities
9498 647 979 BHARTI BT INTERNET LTD.
4755 610 1214 Videsh Sanchar Nigam Ltd. Aut
4766 591 784 Korea Telecom (KIX)
8151 585 1208 UniNet S.A. de C.V.
19916 563 568 OLM LLC
4323 521 1263 Time Warner Telecom
15270 500 533 PaeTec.net -a division of Pae
4668 497 508 LG-EDS Systems Inc.
17488 497 676 Hathway IP Over Cable Interne
5668 466 601 CenturyTel Internet Holdings,
855 464 566 Canadian Research Network
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:73 9:1 12:1797 15:19
16:3 17:3 18:8 20:38 24:943 25:1
32:53 38:312 40:60 41:124 44:2 47:5
52:4 55:2 56:3 57:25 58:392 59:365
60:272 61:941 62:970 63:1966 64:3101 65:2358
66:3271 67:802 68:638 69:1829 70:510 71:104
72:1327 73:1 74:450 75:259 76:56 77:190
80:850 81:800 82:606 83:375 84:438 85:767
86:350 87:471 88:270 89:864 90:6 91:294
97:6 116:66 121:184 122:525 123:97 124:782
125:932 128:274 129:221 130:124 131:365 132:52
133:10 134:193 135:39 136:184 137:78 138:138
139:70 140:476 141:170 142:371 143:234 144:290
145:43 146:321 147:117 148:385 149:144 150:114
151:158 152:91 153:120 154:4 155:253 156:151
157:187 158:160 159:157 160:105 161:90 162:234
163:177 164:451 165:406 166:234 167:281 168:494
169:120 170:399 171:15 172:1 189:428 190:601
192:5765 193:3830 194:3115 195:2211 196:943 198:3743
199:3296 200:4764 201:1013 202:7242 203:7472 204:3954
205:2071 206:2359 207:2882 208:2677 209:3591 210:2442
211:956 212:1301 213:1461 214:408 215:40 216:4007
217:1144 218:357 219:360 220:943 221:371 222:264
End of report
