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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 10 May, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/05/10/0400
Analysis Summary
----------------
BGP routing table entries examined: 219721
Prefixes after maximum aggregation: 117069
Deaggregation factor: 1.88
Unique aggregates announced to Internet: 106765
Total ASes present in the Internet Routing Table: 25134
Prefixes per ASN: 8.74
Origin-only ASes present in the Internet Routing Table: 21893
Origin ASes announcing only one prefix: 10586
Transit ASes present in the Internet Routing Table: 3241
Transit-only ASes present in the Internet Routing Table: 74
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: 5
Unregistered ASNs in the Routing Table: 8
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: 1716728256
Equivalent to 102 /8s, 83 /16s and 49 /24s
Percentage of available address space announced: 46.3
Percentage of allocated address space announced: 62.9
Percentage of available address space allocated: 73.7
Total number of prefixes smaller than registry allocations: 114961
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 50614
Total APNIC prefixes after maximum aggregation: 20245
APNIC Deaggregation factor: 2.50
Prefixes being announced from the APNIC address blocks: 47598
Unique aggregates announced from the APNIC address blocks: 21271
APNIC Region origin ASes present in the Internet Routing Table: 2942
APNIC Prefixes per ASN: 16.18
APNIC Region origin ASes announcing only one prefix: 791
APNIC Region transit ASes present in the Internet Routing Table: 436
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 292867008
Equivalent to 17 /8s, 116 /16s and 203 /24s
Percentage of available APNIC address space announced: 72.5
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: 106100
Total ARIN prefixes after maximum aggregation: 61987
ARIN Deaggregation factor: 1.71
Prefixes being announced from the ARIN address blocks: 78175
Unique aggregates announced from the ARIN address blocks: 30487
ARIN Region origin ASes present in the Internet Routing Table: 11554
ARIN Prefixes per ASN: 6.77
ARIN Region origin ASes announcing only one prefix: 4423
ARIN Region transit ASes present in the Internet Routing Table: 1054
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 332167040
Equivalent to 19 /8s, 204 /16s and 119 /24s
Percentage of available ARIN address space announced: 73.3
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: 45432
Total RIPE prefixes after maximum aggregation: 29711
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 41975
Unique aggregates announced from the RIPE address blocks: 28045
RIPE Region origin ASes present in the Internet Routing Table: 9586
RIPE Prefixes per ASN: 4.38
RIPE Region origin ASes announcing only one prefix: 5060
RIPE Region transit ASes present in the Internet Routing Table: 1542
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 304946048
Equivalent to 18 /8s, 45 /16s and 27 /24s
Percentage of available RIPE address space announced: 75.7
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: 15005
Total LACNIC prefixes after maximum aggregation: 4108
LACNIC Deaggregation factor: 3.65
Prefixes being announced from the LACNIC address blocks: 13079
Unique aggregates announced from the LACNIC address blocks: 7186
LACNIC Region origin ASes present in the Internet Routing Table: 788
LACNIC Prefixes per ASN: 16.60
LACNIC Region origin ASes announcing only one prefix: 255
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: 25
Number of LACNIC addresses announced to Internet: 38563840
Equivalent to 2 /8s, 76 /16s and 112 /24s
Percentage of available LACNIC address space announced: 57.5
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: 2561
Total AfriNIC prefixes after maximum aggregation: 1008
AfriNIC Deaggregation factor: 2.54
Prefixes being announced from the AfriNIC address blocks: 1929
Unique aggregates announced from the AfriNIC address blocks: 1191
AfriNIC Region origin ASes present in the Internet Routing Table: 189
AfriNIC Prefixes per ASN: 10.21
AfriNIC Region origin ASes announcing only one prefix: 57
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: 6093056
Equivalent to 0 /8s, 92 /16s and 249 /24s
Percentage of available AfriNIC address space announced: 18.2
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 1282 9603 274 CHINANET-BACKBONE
4755 1207 383 72 Videsh Sanchar Nigam Ltd. Aut
9583 1110 79 381 Sify Limited
9498 975 469 72 BHARTI BT INTERNET LTD.
4766 783 4943 312 Korea Telecom (KIX)
23577 776 35 706 Korea Telecom (ATM-MPLS)
17488 672 44 34 Hathway IP Over Cable Interne
7545 627 142 81 TPG Internet Pty Ltd
1221 543 1954 422 Telstra Pty Ltd
18101 537 116 28 Reliance Infocom Ltd Internet
4668 507 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
4812 465 807 76 China Telecom (Shanghai)
9443 452 115 74 Primus Telecommunications
7474 411 217 268 SingTel Optus Pty Ltd
4802 359 86 148 Wantree Development
17557 356 37 170 Pakistan Telecom
4837 346 4725 160 chinanet IDC center beijing n
17974 343 129 12 PT TELEKOMUNIKASI INDONESIA
2907 331 1700 302 SINET Japan
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1496 6159 991 AT&T WorldNet Services
4323 1263 1027 360 Time Warner Telecom
2386 1132 580 753 AT&T Data Communications Serv
6478 1093 338 132 AT&T Worldnet Services
11492 1047 104 22 Cable One
6197 1034 688 503 BellSouth Network Solutions,
18566 1004 288 9 Covad Communications
174 967 6793 875 Cogent Communications
701 963 6661 734 UUNET Technologies, Inc.
20115 821 738 429 Charter Communications
1239 817 2717 580 Sprint
7011 791 226 472 Citizens Utilities
19262 772 2620 207 Verizon Global Networks
209 727 3845 581 Qwest
22773 709 1872 42 Cox Communications, Inc.
5668 601 160 17 CenturyTel Internet Holdings,
721 594 21755 271 DLA Systems Automation Center
852 589 1096 370 Telus Advanced Communications
7029 584 456 79 Alltel Information Services,
19916 568 49 51 OLM LLC
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 522 1941 416 UUNET - Commercial IP service
24863 344 47 30 LINKdotNET AS number
3301 309 1455 289 TeliaNet Sweden
3320 303 4993 251 Deutsche Telekom AG
6746 273 128 250 Dynamic Network Technologies,
8220 259 461 250 COLT Telecommunications
680 257 2044 250 DFN-IP service G-WiN
3215 238 2254 95 France Telecom Transpac
8708 235 287 228 Romania Data Systems S.A.
3269 214 2583 73 TELECOM ITALIA
3246 207 340 197 Song Networks
8551 206 196 30 Bezeq International
30890 203 17 94 SC Kappa Invexim SRL
3352 201 1783 37 Ibernet, Internet Access Netw
20858 196 34 4 EgyNet
9116 193 136 25 Goldenlines main autonomous s
1257 190 1180 168 SWIPnet Swedish IP Network
3300 184 171 89 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 211 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 362 22 8 NSS, S.A.
22047 310 238 12 VTR PUNTO NET S.A.
7303 276 143 29 Telecom Argentina Stet-France
6471 259 74 31 ENTEL CHILE S.A.
14117 242 17 14 Telefonica del Sur S.A.
11556 235 128 3 Cable-Wireless Panama
6147 221 166 25 Telefonica Del Peru
6503 215 172 86 AVANTEL, S.A.
20299 191 23 13 NEWCOM AMERICAS
10620 185 53 23 TVCABLE BOGOTA
10481 181 72 8 Prima S.A.
23216 157 19 42 RAMtelecom Telecomunicaciones
14522 155 25 7 SatNet S.A.
21826 155 27 59 INTERCABLE
7910 154 11 29 ANDINET ON LINE
19429 151 93 41 E.T.B.
19169 143 9 26 Telconet
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 291 868 232 The Internet Solution
8452 230 188 7 TEDATA
6713 143 135 11 Itissalat Al-MAGHRIB
2018 137 309 112 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 76 174 73 The Internetworking Company o
2561 61 6 2 Egyptian Universities Network
15706 55 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
33776 31 2 6 Starcomms Nigeria Limited
8524 30 2 6 AUCEGYPT Autonomous System
21280 27 4 4 Swift Global Kenya Ltd.Is an
12455 25 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 1207 1135 Videsh Sanchar Nigam Ltd. Aut
11492 1047 1025 Cable One
4134 1282 1008 CHINANET-BACKBONE
8151 1208 997 UniNet S.A. de C.V.
18566 1004 995 Covad Communications
6478 1093 961 AT&T Worldnet Services
4323 1263 903 Time Warner Telecom
9498 975 903 BHARTI BT INTERNET LTD.
9583 1110 729 Sify Limited
22773 709 667 Cox Communications, Inc.
17488 672 638 Hathway IP Over Cable Interne
5668 601 584 CenturyTel Internet Holdings,
19262 772 565 Verizon Global Networks
7545 627 546 TPG Internet Pty Ltd
6197 1034 531 BellSouth Network Solutions,
19916 568 517 OLM LLC
18101 537 509 Reliance Infocom Ltd Internet
7029 584 505 Alltel Information Services,
4668 507 497 LG-EDS Systems Inc.
15270 531 496 PaeTec.net -a division of Pae
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
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 /10:13 /11:34 /12:123
/13:237 /14:450 /15:863 /16:9379 /17:3846 /18:6374
/19:13468 /20:15340 /21:13851 /22:17920 /23:19206 /24:116452
/25:767 /26:818 /27:478 /28:59 /29:6 /30:1
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1084 1093 AT&T Worldnet Services
11492 1033 1047 Cable One
18566 986 1004 Covad Communications
9583 947 1110 Sify Limited
2386 829 1132 AT&T Data Communications Serv
7018 806 1496 AT&T WorldNet Services
6197 795 1034 BellSouth Network Solutions,
23577 762 776 Korea Telecom (ATM-MPLS)
7011 694 791 Citizens Utilities
9498 639 975 BHARTI BT INTERNET LTD.
4755 602 1207 Videsh Sanchar Nigam Ltd. Aut
4766 590 783 Korea Telecom (KIX)
8151 585 1208 UniNet S.A. de C.V.
19916 563 568 OLM LLC
4323 523 1263 Time Warner Telecom
15270 498 531 PaeTec.net -a division of Pae
4668 496 507 LG-EDS Systems Inc.
17488 493 672 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 8:72 9:1 12:1794 13:1
15:19 16:3 17:3 18:8 20:37 24:929
25:1 32:53 38:307 40:60 41:128 44:2
47:5 52:4 55:2 56:3 57:26 58:390
59:340 60:272 61:935 62:970 63:1974 64:3069
65:2354 66:3267 67:805 68:638 69:1820 70:500
71:104 72:1319 73:1 74:415 75:260 76:47
77:150 80:837 81:805 82:606 83:371 84:434
85:769 86:360 87:471 88:265 89:863 90:6
91:286 97:6 116:56 121:179 122:521 123:94
124:798 125:927 128:281 129:219 130:123 131:345
132:52 133:11 134:192 135:39 136:183 137:78
138:138 139:66 140:476 141:169 142:371 143:235
144:292 145:43 146:323 147:117 148:396 149:144
150:115 151:159 152:92 153:120 154:4 155:253
156:151 157:186 158:161 159:157 160:105 161:90
162:234 163:177 164:452 165:406 166:234 167:281
168:495 169:119 170:400 171:16 172:1 189:427
190:600 192:5763 193:3807 194:3103 195:2222 196:921
198:3741 199:3294 200:4766 201:984 202:7248 203:7478
204:3949 205:2085 206:2362 207:2876 208:2673 209:3587
210:2480 211:937 212:1313 213:1450 214:406 215:40
216:4010 217:1146 218:355 219:355 220:952 221:409
222:261
End of report
