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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 22 Aug, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/08/22/0400
Analysis Summary
----------------
BGP routing table entries examined: 228993
Prefixes after maximum aggregation: 119750
Deaggregation factor: 1.91
Unique aggregates announced to Internet: 110359
Total ASes present in the Internet Routing Table: 25995
Prefixes per ASN: 8.81
Origin-only ASes present in the Internet Routing Table: 22643
Origin ASes announcing only one prefix: 11042
Transit ASes present in the Internet Routing Table: 3352
Transit-only ASes present in the Internet Routing Table: 76
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 21
Max AS path prepend of ASN (35389) 16
Prefixes from unregistered ASNs in the Routing Table: 1
Unregistered ASNs in the Routing Table: 1
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: 1753340640
Equivalent to 104 /8s, 129 /16s and 218 /24s
Percentage of available address space announced: 47.3
Percentage of allocated address space announced: 61.9
Percentage of available address space allocated: 76.4
Total number of prefixes smaller than registry allocations: 121375
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 53392
Total APNIC prefixes after maximum aggregation: 20450
APNIC Deaggregation factor: 2.61
Prefixes being announced from the APNIC address blocks: 50314
Unique aggregates announced from the APNIC address blocks: 21199
APNIC Region origin ASes present in the Internet Routing Table: 3034
APNIC Prefixes per ASN: 16.58
APNIC Region origin ASes announcing only one prefix: 815
APNIC Region transit ASes present in the Internet Routing Table: 461
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 312676512
Equivalent to 18 /8s, 163 /16s and 16 /24s
Percentage of available APNIC address space announced: 77.5
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: 108377
Total ARIN prefixes after maximum aggregation: 62776
ARIN Deaggregation factor: 1.73
Prefixes being announced from the ARIN address blocks: 79752
Unique aggregates announced from the ARIN address blocks: 31924
ARIN Region origin ASes present in the Internet Routing Table: 11759
ARIN Prefixes per ASN: 6.78
ARIN Region origin ASes announcing only one prefix: 4521
ARIN Region transit ASes present in the Internet Routing Table: 1075
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 342217216
Equivalent to 20 /8s, 101 /16s and 210 /24s
Percentage of available ARIN address space announced: 75.5
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: 48235
Total RIPE prefixes after maximum aggregation: 31082
RIPE Deaggregation factor: 1.55
Prefixes being announced from the RIPE address blocks: 44623
Unique aggregates announced from the RIPE address blocks: 29296
RIPE Region origin ASes present in the Internet Routing Table: 10073
RIPE Prefixes per ASN: 4.43
RIPE Region origin ASes announcing only one prefix: 5362
RIPE Region transit ASes present in the Internet Routing Table: 1606
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 324256384
Equivalent to 19 /8s, 83 /16s and 194 /24s
Percentage of available RIPE address space announced: 74.3
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, 80/4, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 16264
Total LACNIC prefixes after maximum aggregation: 4391
LACNIC Deaggregation factor: 3.70
Prefixes being announced from the LACNIC address blocks: 14411
Unique aggregates announced from the LACNIC address blocks: 7736
LACNIC Region origin ASes present in the Internet Routing Table: 848
LACNIC Prefixes per ASN: 16.99
LACNIC Region origin ASes announcing only one prefix: 277
LACNIC Region transit ASes present in the Internet Routing Table: 144
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 42002176
Equivalent to 2 /8s, 128 /16s and 231 /24s
Percentage of available LACNIC address space announced: 62.6
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: 2719
Total AfriNIC prefixes after maximum aggregation: 1041
AfriNIC Deaggregation factor: 2.61
Prefixes being announced from the AfriNIC address blocks: 2244
Unique aggregates announced from the AfriNIC address blocks: 1360
AfriNIC Region origin ASes present in the Internet Routing Table: 204
AfriNIC Prefixes per ASN: 11.00
AfriNIC Region origin ASes announcing only one prefix: 67
AfriNIC Region transit ASes present in the Internet Routing Table: 34
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 7385856
Equivalent to 0 /8s, 112 /16s and 179 /24s
Percentage of available AfriNIC address space announced: 22.0
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 1333 11142 288 CHINANET-BACKBONE
4755 1332 383 73 Videsh Sanchar Nigam Ltd. Aut
9498 999 533 70 BHARTI BT INTERNET LTD.
9583 979 108 17 Sify Limited
4766 794 5440 315 Korea Telecom (KIX)
23577 787 34 685 Korea Telecom (ATM-MPLS)
17488 764 50 47 Hathway IP Over Cable Interne
7545 699 150 115 TPG Internet Pty Ltd
18101 593 119 48 Reliance Infocom Ltd Internet
4812 545 983 99 China Telecom (Shanghai)
1221 543 1951 424 Telstra Pty Ltd
4668 516 68 10 LG-EDS Systems Inc.
17676 503 10919 64 Softbank BB Corp.
4808 476 768 107 CNCGROUP IP network: China169
9443 473 122 77 Primus Telecommunications
4802 426 116 153 Wantree Development
7474 377 216 267 SingTel Optus Pty Ltd
4837 365 5104 167 chinanet IDC center beijing n
17974 364 130 13 PT TELEKOMUNIKASI INDONESIA
9829 363 258 14 BSNL National Internet Backbo
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1478 6076 993 AT&T WorldNet Services
4323 1319 1007 372 Time Warner Telecom
2386 1213 617 748 AT&T Data Communications Serv
11492 1129 109 34 Cable One
6478 1117 322 133 AT&T Worldnet Services
6197 1028 718 508 BellSouth Network Solutions,
18566 1020 288 9 Covad Communications
174 970 6780 860 Cogent Communications
701 942 6579 721 UUNET Technologies, Inc.
7011 912 261 549 Citizens Utilities
20115 805 741 430 Charter Communications
1239 796 2721 564 Sprint
19262 765 2727 184 Verizon Global Networks
22773 754 2148 49 Cox Communications, Inc.
209 734 3835 580 Qwest
5668 628 171 24 CenturyTel Internet Holdings,
6517 581 163 36 Yipes Communications, Inc.
852 580 1096 364 Telus Advanced Communications
855 570 254 73 Canadian Research Network
19916 568 49 51 OLM LLC
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2119 506 918 378 Telenor Internet Access
702 503 1922 404 UUNET - Commercial IP service
24863 365 57 39 LINKdotNET AS number
9116 341 168 26 Goldenlines main autonomous s
3301 314 1456 293 TeliaNet Sweden
3320 313 6035 260 Deutsche Telekom AG
6746 288 130 264 Dynamic Network Technologies,
5089 269 1658 54 NTL Group Limited
680 265 2061 256 DFN-IP service G-WiN
8708 260 420 241 Romania Data Systems S.A.
8220 259 445 242 COLT Telecommunications
3215 258 2424 98 France Telecom Transpac
8551 232 228 27 Bezeq International
3352 226 1868 38 Ibernet, Internet Access Netw
3269 221 2775 73 TELECOM ITALIA
9121 210 1441 24 TTnet Autonomous System
3292 195 1379 175 TDC Tele Danmark
12479 193 578 6 Uni2 Autonomous System
1257 192 1195 170 SWIPnet Swedish IP Network
3300 192 172 93 AUCS Communications Services
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 911 1971 204 UniNet S.A. de C.V.
11830 483 299 9 Instituto Costarricense de El
16814 426 26 9 NSS, S.A.
11172 375 115 61 Servicios Alestra S.A de C.V
14522 334 28 7 SatNet S.A.
7303 333 175 43 Telecom Argentina Stet-France
6471 322 75 33 ENTEL CHILE S.A.
22047 318 246 13 VTR PUNTO NET S.A.
14117 281 19 15 Telefonica del Sur S.A.
10481 278 104 9 Prima S.A.
11556 235 128 3 Cable-Wireless Panama
6147 227 178 24 Telefonica Del Peru
10620 217 61 26 TVCABLE BOGOTA
6503 201 171 82 AVANTEL, S.A.
23216 195 16 43 RAMtelecom Telecomunicaciones
8163 177 11 6 METROTEL REDES S.A.
19169 170 12 18 Telconet
20299 163 24 21 NEWCOM AMERICAS
21826 163 29 59 INTERCABLE
7738 160 506 23 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 282 867 223 The Internet Solution
8452 234 188 7 TEDATA
6713 142 135 11 Itissalat Al-MAGHRIB
2018 140 301 115 Tertiary Education Network
33783 126 8 11 EEPAD TISP TELECOM & INTERNET
5536 124 8 10 Internet Egypt Network
33776 99 6 8 Starcomms Nigeria Limited
24835 87 48 6 RAYA Telecom - Egypt
15475 80 84 4 Nile Online
2905 75 174 72 The Internetworking Company o
2561 62 6 2 Egyptian Universities Network
15706 52 12 4 Sudatel Internet Exchange Aut
23889 52 24 15 MAURITIUS TELECOM
5713 46 294 36 Telkom SA Ltd
16637 46 21 29 Johnnic e-Ventures
33774 46 29 24 AS Number for Telecom Algeria
8524 31 2 10 AUCEGYPT Autonomous System
21280 30 4 4 Swift Global Kenya Ltd.Is an
12455 28 6 3 Jambonet Autonomous system
15804 27 2 1 AS of The Way Out Internet So
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1332 1259 Videsh Sanchar Nigam Ltd. Aut
11492 1129 1095 Cable One
4134 1333 1045 CHINANET-BACKBONE
18566 1020 1011 Covad Communications
6478 1117 984 AT&T Worldnet Services
9583 979 962 Sify Limited
4323 1319 947 Time Warner Telecom
9498 999 929 BHARTI BT INTERNET LTD.
17488 764 717 Hathway IP Over Cable Interne
8151 911 707 UniNet S.A. de C.V.
22773 754 705 Cox Communications, Inc.
5668 628 604 CenturyTel Internet Holdings,
7545 699 584 TPG Internet Pty Ltd
19262 765 581 Verizon Global Networks
18101 593 545 Reliance Infocom Ltd Internet
6517 581 545 Yipes Communications, Inc.
15270 567 529 PaeTec.net -a division of Pae
6197 1028 520 BellSouth Network Solutions,
19916 568 517 OLM LLC
4668 516 506 LG-EDS Systems Inc.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
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 /8:18 /9:9 /10:15 /11:36 /12:134
/13:258 /14:470 /15:922 /16:9603 /17:4060 /18:6577
/19:13875 /20:16158 /21:14813 /22:19107 /23:20080 /24:120455
/25:778 /26:1032 /27:501 /28:79 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1121 1129 Cable One
6478 1116 1117 AT&T Worldnet Services
18566 1002 1020 Covad Communications
2386 907 1213 AT&T Data Communications Serv
9583 849 979 Sify Limited
7018 817 1478 AT&T WorldNet Services
7011 809 912 Citizens Utilities
6197 781 1028 BellSouth Network Solutions,
23577 778 787 Korea Telecom (ATM-MPLS)
4755 716 1332 Videsh Sanchar Nigam Ltd. Aut
9498 669 999 BHARTI BT INTERNET LTD.
4766 594 794 Korea Telecom (KIX)
17488 587 764 Hathway IP Over Cable Interne
19916 563 568 OLM LLC
4323 551 1319 Time Warner Telecom
6517 548 581 Yipes Communications, Inc.
15270 531 567 PaeTec.net -a division of Pae
4668 506 516 LG-EDS Systems Inc.
18101 499 593 Reliance Infocom Ltd Internet
5668 493 628 CenturyTel Internet Holdings,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:88 12:1798 13:1 15:18
16:3 17:3 18:13 20:37 24:958 25:1
32:56 33:3 38:347 40:60 41:307 44:2
47:4 52:4 55:3 56:3 57:25 58:476
59:387 60:360 61:1004 62:942 63:1998 64:3164
65:2362 66:3403 67:765 68:643 69:1958 70:442
71:105 72:1384 73:2 74:628 75:260 76:124
77:288 78:40 80:832 81:825 82:655 83:379
84:592 85:855 86:341 87:485 88:279 89:964
90:24 91:489 97:5 116:278 117:135 121:264
122:597 123:156 124:823 125:983 126:1 128:277
129:214 130:140 131:363 132:56 133:9 134:198
135:34 136:189 137:81 138:149 139:71 140:490
141:173 142:379 143:257 144:298 145:46 146:326
147:123 148:407 149:143 150:110 151:159 152:88
153:122 154:3 155:263 156:161 157:214 158:158
159:171 160:113 161:96 162:186 163:180 164:479
165:393 166:275 167:295 168:510 169:121 170:391
171:22 172:2 189:69 190:984 192:5742 193:3973
194:3180 195:2279 196:976 198:3810 199:3273 200:5114
201:1151 202:7295 203:7613 204:3954 205:1975 206:2410
207:2809 208:2779 209:3468 210:2385 211:986 212:1334
213:1475 214:419 215:41 216:3992 217:1172 218:361
219:381 220:1022 221:392 222:266
End of report
