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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 05 Jun, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/06/05/0400
Analysis Summary
----------------
BGP routing table entries examined: 222271
Prefixes after maximum aggregation: 118019
Deaggregation factor: 1.88
Unique aggregates announced to Internet: 107609
Total ASes present in the Internet Routing Table: 25342
Prefixes per ASN: 8.77
Origin-only ASes present in the Internet Routing Table: 22056
Origin ASes announcing only one prefix: 10700
Transit ASes present in the Internet Routing Table: 3286
Transit-only ASes present in the Internet Routing Table: 80
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: 7
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1728884064
Equivalent to 103 /8s, 12 /16s and 173 /24s
Percentage of available address space announced: 46.6
Percentage of allocated address space announced: 61.8
Percentage of available address space allocated: 75.5
Total number of prefixes smaller than registry allocations: 116652
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 51330
Total APNIC prefixes after maximum aggregation: 20283
APNIC Deaggregation factor: 2.53
Prefixes being announced from the APNIC address blocks: 48288
Unique aggregates announced from the APNIC address blocks: 21283
APNIC Region origin ASes present in the Internet Routing Table: 2962
APNIC Prefixes per ASN: 16.30
APNIC Region origin ASes announcing only one prefix: 792
APNIC Region transit ASes present in the Internet Routing Table: 449
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 296884640
Equivalent to 17 /8s, 178 /16s and 25 /24s
Percentage of available APNIC address space announced: 73.5
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: 106869
Total ARIN prefixes after maximum aggregation: 62274
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 78786
Unique aggregates announced from the ARIN address blocks: 30799
ARIN Region origin ASes present in the Internet Routing Table: 11600
ARIN Prefixes per ASN: 6.79
ARIN Region origin ASes announcing only one prefix: 4467
ARIN Region transit ASes present in the Internet Routing Table: 1060
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 334713728
Equivalent to 19 /8s, 243 /16s and 83 /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: 46296
Total RIPE prefixes after maximum aggregation: 30277
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 42807
Unique aggregates announced from the RIPE address blocks: 28411
RIPE Region origin ASes present in the Internet Routing Table: 9711
RIPE Prefixes per ASN: 4.41
RIPE Region origin ASes announcing only one prefix: 5129
RIPE Region transit ASes present in the Internet Routing Table: 1567
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 310174976
Equivalent to 18 /8s, 124 /16s and 229 /24s
Percentage of available RIPE address space announced: 77.0
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: 15171
Total LACNIC prefixes after maximum aggregation: 4171
LACNIC Deaggregation factor: 3.64
Prefixes being announced from the LACNIC address blocks: 13322
Unique aggregates announced from the LACNIC address blocks: 7319
LACNIC Region origin ASes present in the Internet Routing Table: 799
LACNIC Prefixes per ASN: 16.67
LACNIC Region origin ASes announcing only one prefix: 257
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: 39244800
Equivalent to 2 /8s, 86 /16s and 212 /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: 2594
Total AfriNIC prefixes after maximum aggregation: 1002
AfriNIC Deaggregation factor: 2.59
Prefixes being announced from the AfriNIC address blocks: 1983
Unique aggregates announced from the AfriNIC address blocks: 1185
AfriNIC Region origin ASes present in the Internet Routing Table: 189
AfriNIC Prefixes per ASN: 10.49
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: 6124544
Equivalent to 0 /8s, 93 /16s and 116 /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 1289 9975 279 CHINANET-BACKBONE
4755 1225 382 71 Videsh Sanchar Nigam Ltd. Aut
9583 1104 89 306 Sify Limited
9498 990 469 68 BHARTI BT INTERNET LTD.
4766 786 4943 312 Korea Telecom (KIX)
23577 779 35 706 Korea Telecom (ATM-MPLS)
17488 698 45 39 Hathway IP Over Cable Interne
7545 631 140 79 TPG Internet Pty Ltd
18101 554 117 35 Reliance Infocom Ltd Internet
1221 551 1954 425 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 463 837 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 356 40 166 Pakistan Telecom
4837 345 4805 160 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1499 6144 992 AT&T WorldNet Services
4323 1275 1033 367 Time Warner Telecom
2386 1147 596 756 AT&T Data Communications Serv
6478 1103 360 124 AT&T Worldnet Services
11492 1074 104 24 Cable One
6197 1040 707 509 BellSouth Network Solutions,
18566 1010 288 9 Covad Communications
174 956 6777 867 Cogent Communications
701 955 6614 731 UUNET Technologies, Inc.
1239 816 2731 579 Sprint
20115 807 725 429 Charter Communications
7011 806 229 482 Citizens Utilities
19262 773 2694 205 Verizon Global Networks
209 740 3836 580 Qwest
22773 717 1892 44 Cox Communications, Inc.
5668 603 160 17 CenturyTel Internet Holdings,
7029 603 488 79 Alltel Information Services,
7385 600 169 467 Linkport Communications
852 589 1090 371 Telus Advanced Communications
721 568 21675 266 DLA Systems Automation Center
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 518 1939 409 UUNET - Commercial IP service
2119 509 918 381 Telenor Internet Access
24863 348 48 34 LINKdotNET AS number
3301 310 1455 289 TeliaNet Sweden
3320 304 4994 254 Deutsche Telekom AG
6746 279 128 255 Dynamic Network Technologies,
680 260 2044 251 DFN-IP service G-WiN
3215 248 2296 95 France Telecom Transpac
8220 247 443 239 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 212 1863 36 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 186 578 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 1039 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 317 238 12 VTR PUNTO NET S.A.
7303 288 143 29 Telecom Argentina Stet-France
6471 267 74 32 ENTEL CHILE S.A.
14117 244 17 14 Telefonica del Sur S.A.
11556 229 128 3 Cable-Wireless Panama
6147 224 168 25 Telefonica Del Peru
6503 211 188 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 156 27 60 INTERCABLE
19429 155 95 44 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 278 866 219 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 120 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 31 2 6 Starcomms Nigeria Limited
21280 27 4 4 Swift Global Kenya Ltd.Is an
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 1225 1154 Videsh Sanchar Nigam Ltd. Aut
11492 1074 1050 Cable One
4134 1289 1010 CHINANET-BACKBONE
18566 1010 1001 Covad Communications
6478 1103 979 AT&T Worldnet Services
9498 990 922 BHARTI BT INTERNET LTD.
4323 1275 908 Time Warner Telecom
8151 1039 829 UniNet S.A. de C.V.
9583 1104 798 Sify Limited
22773 717 673 Cox Communications, Inc.
17488 698 659 Hathway IP Over Cable Interne
5668 603 586 CenturyTel Internet Holdings,
19262 773 568 Verizon Global Networks
7545 631 552 TPG Internet Pty Ltd
6197 1040 531 BellSouth Network Solutions,
7029 603 524 Alltel Information Services,
18101 554 519 Reliance Infocom Ltd Internet
19916 568 517 OLM LLC
15270 544 509 PaeTec.net -a division of Pae
855 568 497 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
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 /10:14 /11:34 /12:123
/13:238 /14:453 /15:875 /16:9436 /17:3980 /18:6382
/19:13512 /20:15544 /21:14104 /22:18386 /23:19526 /24:117409
/25:801 /26:848 /27:476 /28:67 /29:10 /30:13
/31:0 /32:12
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1093 1103 AT&T Worldnet Services
11492 1065 1074 Cable One
18566 992 1010 Covad Communications
9583 941 1104 Sify Limited
2386 850 1147 AT&T Data Communications Serv
7018 808 1499 AT&T WorldNet Services
6197 794 1040 BellSouth Network Solutions,
23577 765 779 Korea Telecom (ATM-MPLS)
7011 707 806 Citizens Utilities
9498 660 990 BHARTI BT INTERNET LTD.
4755 624 1225 Videsh Sanchar Nigam Ltd. Aut
4766 593 786 Korea Telecom (KIX)
19916 563 568 OLM LLC
4323 523 1275 Time Warner Telecom
17488 519 698 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 12:1807 15:19
16:3 17:3 18:8 20:38 24:948 25:1
32:51 33:2 38:319 40:61 41:151 44:2
47:5 52:4 55:2 56:3 57:24 58:410
59:398 60:301 61:967 62:913 63:1979 64:3118
65:2355 66:3297 67:813 68:634 69:1878 70:520
71:107 72:1306 73:1 74:488 75:264 76:76
77:226 78:2 80:801 81:812 82:650 83:415
84:409 85:810 86:341 87:452 88:276 89:877
90:7 91:335 94:1 97:6 98:3 116:106
121:159 122:535 123:108 124:815 125:944 128:281
129:223 130:138 131:367 132:52 133:9 134:192
135:38 136:185 137:77 138:140 139:70 140:389
141:171 142:370 143:233 144:291 145:43 146:320
147:119 148:398 149:143 150:115 151:159 152:92
153:123 154:4 155:254 156:152 157:186 158:158
159:157 160:107 161:92 162:232 163:185 164:451
165:403 166:240 167:284 168:502 169:120 170:403
171:15 172:1 189:269 190:638 192:5767 193:3846
194:3117 195:2230 196:934 198:3748 199:3290 200:4856
201:1054 202:7336 203:7518 204:3959 205:2043 206:2357
207:2856 208:2705 209:3579 210:2469 211:967 212:1291
213:1455 214:406 215:40 216:4032 217:1146 218:354
219:380 220:963 221:399 222:263
End of report
