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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 13 Oct, 2006
Analysis Summary
----------------
BGP routing table entries examined: 199891
Prefixes after maximum aggregation: 108780
Unique aggregates announced to Internet: 97149
Total ASes present in the Internet Routing Table: 23352
Origin-only ASes present in the Internet Routing Table: 20344
Origin ASes announcing only one prefix: 9790
Transit ASes present in the Internet Routing Table: 3008
Transit-only ASes present in the Internet Routing Table: 72
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 29
Max AS path prepend of ASN (36728) 27
Prefixes from unregistered ASNs in the Routing Table: 1
Unregistered ASNs in the Routing Table: 3
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1615176204
Equivalent to 96 /8s, 69 /16s and 162 /24s
Percentage of available address space announced: 43.6
Percentage of allocated address space announced: 60.3
Percentage of available address space allocated: 72.3
Total number of prefixes smaller than registry allocations: 100192
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 43670
Total APNIC prefixes after maximum aggregation: 17563
Prefixes being announced from the APNIC address blocks: 41310
Unique aggregates announced from the APNIC address blocks: 18517
APNIC Region origin ASes present in the Internet Routing Table: 2714
APNIC Region origin ASes announcing only one prefix: 763
APNIC Region transit ASes present in the Internet Routing Table: 404
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 263599712
Equivalent to 15 /8s, 182 /16s and 54 /24s
Percentage of available APNIC address space announced: 82.4
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, 121/8, 122/7, 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: 100701
Total ARIN prefixes after maximum aggregation: 59522
Prefixes being announced from the ARIN address blocks: 73949
Unique aggregates announced from the ARIN address blocks: 27925
ARIN Region origin ASes present in the Internet Routing Table: 11054
ARIN Region origin ASes announcing only one prefix: 4208
ARIN Region transit ASes present in the Internet Routing Table: 1029
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 29
Number of ARIN addresses announced to Internet: 304705664
Equivalent to 18 /8s, 41 /16s and 112 /24s
Percentage of available ARIN address space announced: 67.3
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: 40689
Total RIPE prefixes after maximum aggregation: 26927
Prefixes being announced from the RIPE address blocks: 37606
Unique aggregates announced from the RIPE address blocks: 25210
RIPE Region origin ASes present in the Internet Routing Table: 8619
RIPE Region origin ASes announcing only one prefix: 4528
RIPE Region transit ASes present in the Internet Routing Table: 1395
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 267498532
Equivalent to 15 /8s, 241 /16s and 180 /24s
Percentage of available RIPE address space announced: 72.5
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
40960-41983
RIPE Address Blocks 62/8, 77/8, 78/7, 80/5, 88/6, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 12516
Total LACNIC prefixes after maximum aggregation: 3839
Prefixes being announced from the LACNIC address blocks: 10549
Unique aggregates announced from the LACNIC address blocks: 6235
LACNIC Region origin ASes present in the Internet Routing Table: 731
LACNIC Region origin ASes announcing only one prefix: 245
LACNIC Region transit ASes present in the Internet Routing Table: 125
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 33020928
Equivalent to 1 /8s, 247 /16s and 220 /24s
Percentage of available LACNIC address space announced: 49.2
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: 2314
Total AfriNIC prefixes after maximum aggregation: 929
Prefixes being announced from the AfriNIC address blocks: 1636
Unique aggregates announced from the AfriNIC address blocks: 1088
AfriNIC Region origin ASes present in the Internet Routing Table: 162
AfriNIC Region origin ASes announcing only one prefix: 46
AfriNIC Region transit ASes present in the Internet Routing Table: 27
Average AfriNIC Region AS path length visible: 3.5
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 4300800
Equivalent to 0 /8s, 65 /16s and 160 /24s
Percentage of available AfriNIC address space announced: 12.8
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 1245 8270 238 CHINANET-BACKBONE
4755 1009 255 67 Videsh Sanchar Nigam Ltd. Aut
9583 958 109 15 Sify Limited
9498 864 212 70 BHARTI BT INTERNET LTD.
4766 741 4436 307 Korea Telecom (KIX)
1221 608 1780 467 Telstra Pty Ltd
7545 542 124 74 TPG Internet Pty Ltd
17488 534 33 12 Hathway IP Over Cable Interne
17676 499 10933 63 Softbank BB Corp.
18101 460 85 18 Reliance Infocom Ltd Internet
9443 454 111 74 Primus Telecommunications
17849 430 36 126 Telecommunications Technology
9942 428 77 127 COMindico Australia
4802 414 86 151 Wantree Development
4812 411 741 63 China Telecom (Shanghai)
17557 361 30 176 Pakistan Telecom
2907 336 1734 312 SINET Japan
10139 330 23 6 Meridian Telekoms
4837 324 3556 140 chinanet IDC center beijing n
7474 291 210 225 SingTel Optus Pty Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1523 6209 983 AT&T WorldNet Services
2386 1167 614 743 AT&T Data Communications Serv
4323 1030 784 294 Time Warner Telecom
6197 1020 617 495 BellSouth Network Solutions,
18566 967 272 8 Covad Communications
721 960 21909 305 DLA Systems Automation Center
174 959 6823 885 Cogent Communications
701 952 6742 778 UUNET Technologies, Inc.
1239 836 2763 589 Sprint
11492 756 90 13 Cable One
20115 749 673 392 Charter Communications
19262 739 2391 179 Verizon Global Networks
22773 718 1744 46 Cox Communications, Inc.
209 707 3633 556 Qwest
7011 684 210 429 Citizens Utilities
852 591 1071 388 Telus Advanced Communications
19916 565 49 54 OLM LLC
855 547 250 74 Canadian Research Network
5668 538 145 18 CenturyTel Internet Holdings,
6478 528 1279 334 AT&T Worldnet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 544 1928 423 UUNET - Commercial IP service
3301 310 1200 294 TeliaNet Sweden
3320 300 5013 245 Deutsche Telekom AG
8220 278 455 264 COLT Telecommunications
24863 273 41 30 LINKdotNET AS number
680 251 2041 247 DFN-IP service G-WiN
6746 246 91 224 Dynamic Network Technologies,
3246 227 469 217 Song Networks
8708 222 279 209 Romania Data Systems S.A.
9116 220 134 23 Goldenlines main autonomous s
3215 214 1872 93 France Telecom Transpac
1257 208 740 168 SWIPnet Swedish IP Network
3269 204 2277 74 TELECOM ITALIA
30890 203 18 78 SC Kappa Invexim SRL
8551 200 182 27 Bezeq International
6830 197 879 43 UPC Distribution Services
5416 186 12 11 BATELCO-BH
8866 185 37 15 Bulgarian Telecommunication C
3300 175 171 96 AUCS Communications Services
786 171 1779 171 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 631 1810 223 UniNet S.A. de C.V.
11172 382 100 91 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
22047 303 206 11 VTR PUNTO NET S.A.
11830 285 299 9 Instituto Costarricense de El
6147 263 140 23 Telefonica Del Peru
6471 255 74 30 ENTEL CHILE S.A.
14117 235 15 8 Telefonica del Sur S.A.
7303 208 92 27 Telecom Argentina Stet-France
10481 181 72 8 Prima S.A.
6503 179 168 85 AVANTEL, S.A.
21826 145 19 30 INTERCABLE
23216 144 19 46 RAMtelecom Telecomunicaciones
7910 137 9 18 ANDINET ON LINE
19169 136 9 21 Telconet
19429 135 84 40 E.T.B.
11556 132 96 4 Cable-Wireless Panama
18822 129 8 10 TELEFONICA MANQUEHUE
6505 125 91 83 Global One Communicaoes Ltda
14522 118 18 9 SatNet S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 295 804 234 The Internet Solution
8452 173 60 7 TEDATA
6713 145 139 12 Itissalat Al-MAGHRIB
2018 132 297 111 Tertiary Education Network
5536 122 8 17 Internet Egypt Network
24835 116 48 6 RAYA Telecom - Egypt
33783 108 6 3 EEPAD TISP TELECOM & INTERNET
15475 102 84 4 Nile Online
2905 75 157 68 The Internetworking Company o
2561 55 6 2 Egyptian Universities Network
15706 55 12 4 Sudatel Internet Exchange Aut
12455 37 6 3 Jambonet Autonomous system
5713 36 293 32 Telkom SA Ltd
33774 34 7 21 AS Number for Telecom Algeria
8524 30 2 6 AUCEGYPT Autonomous System
23889 28 9 13 MAURITIUS TELECOM
21280 26 4 4 Swift Global Kenya Ltd.Is an
16637 24 19 23 Johnnic e-Ventures
10798 23 1 14 Standard Bank of South Africa
21491 23 17 2 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4134 1245 1007 CHINANET-BACKBONE
18566 967 959 Covad Communications
9583 958 943 Sify Limited
4755 1009 942 Videsh Sanchar Nigam Ltd. Aut
9498 864 794 BHARTI BT INTERNET LTD.
11492 756 743 Cable One
4323 1030 736 Time Warner Telecom
22773 718 672 Cox Communications, Inc.
721 960 655 DLA Systems Automation Center
19262 739 560 Verizon Global Networks
6197 1020 525 BellSouth Network Solutions,
17488 534 522 Hathway IP Over Cable Interne
5668 538 520 CenturyTel Internet Holdings,
19916 565 511 OLM LLC
855 547 473 Canadian Research Network
7545 542 468 TPG Internet Pty Ltd
18101 460 442 Reliance Infocom Ltd Internet
17676 499 436 Softbank BB Corp.
15270 471 436 PaeTec.net -a division of Pae
4766 741 434 Korea Telecom (KIX)
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
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
192.44.0.0/24 5501 Fraunhofer Gesellschaft
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.84.205.0/24 719 LANLINK autonomous system
192.172.0.0/19 721 DLA Systems Automation Center
192.249.0.0/20 3450 University of Tennessee, Knox
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 /11:29 /12:106
/13:214 /14:386 /15:773 /16:9039 /17:3505 /18:5721
/19:12380 /20:13996 /21:12347 /22:15661 /23:17025 /24:107354
/25:460 /26:418 /27:191 /28:70 /29:43 /30:95
/31:0 /32:37
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 950 967 Covad Communications
2386 884 1167 AT&T Data Communications Serv
7018 804 1523 AT&T WorldNet Services
6197 802 1020 BellSouth Network Solutions,
9583 790 958 Sify Limited
11492 744 756 Cable One
7011 591 684 Citizens Utilities
19916 559 565 OLM LLC
4766 550 741 Korea Telecom (KIX)
9498 516 864 BHARTI BT INTERNET LTD.
15270 440 471 PaeTec.net -a division of Pae
4755 439 1009 Videsh Sanchar Nigam Ltd. Aut
855 427 547 Canadian Research Network
5668 420 538 CenturyTel Internet Holdings,
17849 416 430 Telecommunications Technology
1239 408 836 Sprint
18101 394 460 Reliance Infocom Ltd Internet
22773 377 718 Cox Communications, Inc.
33588 371 392 Bresnan Communications, LLC.
17488 354 534 Hathway IP Over Cable Interne
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:53 12:1647 13:1 15:16 16:3
17:3 18:4 20:41 24:819 25:1 32:57
38:258 40:56 41:22 44:3 47:7 52:4
53:1 55:1 56:3 57:25 58:223 59:289
60:217 61:900 62:947 63:1906 64:3141 65:2234
66:3034 67:649 68:648 69:1653 70:403 71:92
72:956 74:84 75:9 80:828 81:704 82:621
83:403 84:401 85:685 86:407 87:473 88:230
89:511 91:27 121:55 122:18 124:417 125:648
128:281 129:229 130:118 131:311 132:35 133:9
134:166 135:50 136:176 137:107 138:130 139:47
140:528 141:130 142:343 143:193 144:239 145:43
146:321 147:137 148:360 149:177 150:115 151:121
152:76 153:121 154:5 155:254 156:160 157:167
158:155 159:171 160:98 161:85 162:215 163:161
164:227 165:218 166:239 167:250 168:488 169:128
170:376 171:11 172:1 189:2 190:237 192:5762
193:3516 194:2736 195:2101 196:889 198:3890 199:3315
200:4467 201:969 202:6905 203:7122 204:3925 205:2107
206:2420 207:2963 208:2296 209:3510 210:2183 211:840
212:1321 213:1502 214:380 215:39 216:4056 217:1144
218:336 219:258 220:795 221:386 222:164
End of report
Report Website: http://thyme.apnic.net
