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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 30 Oct, 2006
Analysis Summary
----------------
BGP routing table entries examined: 202218
Prefixes after maximum aggregation: 109786
Unique aggregates announced to Internet: 97936
Total ASes present in the Internet Routing Table: 23491
Origin-only ASes present in the Internet Routing Table: 20454
Origin ASes announcing only one prefix: 9825
Transit ASes present in the Internet Routing Table: 3037
Transit-only ASes present in the Internet Routing Table: 78
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: 4
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1622605072
Equivalent to 96 /8s, 182 /16s and 253 /24s
Percentage of available address space announced: 43.8
Percentage of allocated address space announced: 60.5
Percentage of available address space allocated: 72.3
Total number of prefixes smaller than registry allocations: 101916
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 44753
Total APNIC prefixes after maximum aggregation: 18222
Prefixes being announced from the APNIC address blocks: 42343
Unique aggregates announced from the APNIC address blocks: 18533
APNIC Region origin ASes present in the Internet Routing Table: 2736
APNIC Region origin ASes announcing only one prefix: 760
APNIC Region transit ASes present in the Internet Routing Table: 415
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 265053024
Equivalent to 15 /8s, 204 /16s and 99 /24s
Percentage of available APNIC address space announced: 82.9
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: 101125
Total ARIN prefixes after maximum aggregation: 59675
Prefixes being announced from the ARIN address blocks: 74320
Unique aggregates announced from the ARIN address blocks: 28111
ARIN Region origin ASes present in the Internet Routing Table: 11092
ARIN Region origin ASes announcing only one prefix: 4217
ARIN Region transit ASes present in the Internet Routing Table: 1038
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 29
Number of ARIN addresses announced to Internet: 307321248
Equivalent to 18 /8s, 81 /16s and 89 /24s
Percentage of available ARIN address space announced: 67.8
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: 40905
Total RIPE prefixes after maximum aggregation: 27079
Prefixes being announced from the RIPE address blocks: 37859
Unique aggregates announced from the RIPE address blocks: 25302
RIPE Region origin ASes present in the Internet Routing Table: 8677
RIPE Region origin ASes announcing only one prefix: 4560
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: 22
Number of RIPE addresses announced to Internet: 269905668
Equivalent to 16 /8s, 22 /16s and 111 /24s
Percentage of available RIPE address space announced: 73.1
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: 13081
Total LACNIC prefixes after maximum aggregation: 3881
Prefixes being announced from the LACNIC address blocks: 11052
Unique aggregates announced from the LACNIC address blocks: 6732
LACNIC Region origin ASes present in the Internet Routing Table: 744
LACNIC Region origin ASes announcing only one prefix: 241
LACNIC Region transit ASes present in the Internet Routing Table: 129
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 17
Number of LACNIC addresses announced to Internet: 33809152
Equivalent to 2 /8s, 3 /16s and 227 /24s
Percentage of available LACNIC address space announced: 50.4
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: 2353
Total AfriNIC prefixes after maximum aggregation: 929
Prefixes being announced from the AfriNIC address blocks: 1616
Unique aggregates announced from the AfriNIC address blocks: 1040
AfriNIC Region origin ASes present in the Internet Routing Table: 164
AfriNIC Region origin ASes announcing only one prefix: 47
AfriNIC Region transit ASes present in the Internet Routing Table: 27
Average AfriNIC Region AS path length visible: 3.6
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 4322304
Equivalent to 0 /8s, 65 /16s and 244 /24s
Percentage of available AfriNIC address space announced: 12.9
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 1250 8392 243 CHINANET-BACKBONE
4755 1015 383 66 Videsh Sanchar Nigam Ltd. Aut
9583 946 109 15 Sify Limited
9498 862 212 64 BHARTI BT INTERNET LTD.
23577 777 35 705 KRNIC
4766 739 4436 306 Korea Telecom (KIX)
1221 611 1780 469 Telstra Pty Ltd
7545 543 124 73 TPG Internet Pty Ltd
17488 542 34 14 Hathway IP Over Cable Interne
17676 500 10934 64 Softbank BB Corp.
18101 464 86 21 Reliance Infocom Ltd Internet
9443 454 111 74 Primus Telecommunications
4812 437 745 61 China Telecom (Shanghai)
9942 431 77 125 COMindico Australia
17849 430 36 126 Telecommunications Technology
4802 411 86 151 Wantree Development
17557 365 31 176 Pakistan Telecom
17974 363 129 12 PT TELEKOMUNIKASI INDONESIA
10139 362 23 6 Meridian Telekoms
2907 333 1733 310 SINET Japan
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1528 6191 987 AT&T WorldNet Services
2386 1184 620 755 AT&T Data Communications Serv
4323 1030 786 291 Time Warner Telecom
6197 1016 638 481 BellSouth Network Solutions,
18566 969 272 8 Covad Communications
721 964 21925 306 DLA Systems Automation Center
174 955 6823 880 Cogent Communications
701 951 6721 772 UUNET Technologies, Inc.
1239 846 2764 595 Sprint
11492 781 96 16 Cable One
19262 778 2430 179 Verizon Global Networks
20115 754 679 397 Charter Communications
22773 715 1744 46 Cox Communications, Inc.
209 706 3761 556 Qwest
7011 684 208 425 Citizens Utilities
852 591 1071 388 Telus Advanced Communications
19916 565 49 54 OLM LLC
5668 540 145 18 CenturyTel Internet Holdings,
855 539 250 74 Canadian Research Network
6478 533 1289 335 AT&T Worldnet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 546 1928 425 UUNET - Commercial IP service
3301 314 1200 298 TeliaNet Sweden
3320 307 5016 248 Deutsche Telekom AG
24863 274 41 30 LINKdotNET AS number
8220 273 470 263 COLT Telecommunications
680 251 2041 247 DFN-IP service G-WiN
6746 248 91 225 Dynamic Network Technologies,
3246 227 469 217 Song Networks
8708 223 279 210 Romania Data Systems S.A.
9116 222 134 23 Goldenlines main autonomous s
3215 219 1952 92 France Telecom Transpac
8551 216 198 28 Bezeq International
1257 213 740 169 SWIPnet Swedish IP Network
3269 206 2341 74 TELECOM ITALIA
30890 206 18 79 SC Kappa Invexim SRL
6830 200 879 43 UPC Distribution Services
5416 186 12 11 BATELCO-BH
3300 175 171 95 AUCS Communications Services
786 171 1779 171 The JANET IP Service
3352 168 1703 31 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 750 1906 217 UniNet S.A. de C.V.
11830 459 299 19 Instituto Costarricense de El
11172 433 101 88 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
22047 303 206 11 VTR PUNTO NET S.A.
6147 269 150 22 Telefonica Del Peru
6471 267 74 30 ENTEL CHILE S.A.
14117 240 15 10 Telefonica del Sur S.A.
7303 207 93 35 Telecom Argentina Stet-France
6503 195 169 86 AVANTEL, S.A.
10481 181 72 8 Prima S.A.
21826 145 19 30 INTERCABLE
19169 136 9 21 Telconet
19429 136 84 40 E.T.B.
23216 135 19 43 RAMtelecom Telecomunicaciones
7910 134 9 25 ANDINET ON LINE
11556 132 96 4 Cable-Wireless Panama
18822 129 8 10 TELEFONICA MANQUEHUE
7738 121 442 21 Telecomunicacoes da Bahia S.A
14522 117 18 9 SatNet S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 293 804 234 The Internet Solution
8452 173 60 7 TEDATA
6713 145 139 12 Itissalat Al-MAGHRIB
15475 135 84 4 Nile Online
2018 133 297 111 Tertiary Education Network
5536 122 8 17 Internet Egypt Network
24835 116 48 6 RAYA Telecom - Egypt
33783 109 6 3 EEPAD TISP TELECOM & INTERNET
2905 75 157 68 The Internetworking Company o
2561 56 6 2 Egyptian Universities Network
15706 56 12 4 Sudatel Internet Exchange Aut
12455 38 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 29 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 21 17 2 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4134 1250 1007 CHINANET-BACKBONE
18566 969 961 Covad Communications
4755 1015 949 Videsh Sanchar Nigam Ltd. Aut
9583 946 931 Sify Limited
9498 862 798 BHARTI BT INTERNET LTD.
11492 781 765 Cable One
4323 1030 739 Time Warner Telecom
22773 715 669 Cox Communications, Inc.
721 964 658 DLA Systems Automation Center
19262 778 599 Verizon Global Networks
6197 1016 535 BellSouth Network Solutions,
8151 750 533 UniNet S.A. de C.V.
17488 542 528 Hathway IP Over Cable Interne
5668 540 522 CenturyTel Internet Holdings,
19916 565 511 OLM LLC
7545 543 470 TPG Internet Pty Ltd
855 539 465 Canadian Research Network
15270 481 446 PaeTec.net -a division of Pae
18101 464 443 Reliance Infocom Ltd Internet
11830 459 440 Instituto Costarricense de El
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
198.18.0.0/15 8895 KACST/ISU Riyadh Autonomous S
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 /9:10 /10:13 /11:29 /12:107
/13:216 /14:389 /15:780 /16:9050 /17:3514 /18:5759
/19:12624 /20:14139 /21:12510 /22:15859 /23:17298 /24:108058
/25:642 /26:541 /27:356 /28:69 /29:41 /30:153
/31:0 /32:42
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 952 969 Covad Communications
2386 895 1184 AT&T Data Communications Serv
7018 806 1528 AT&T WorldNet Services
6197 798 1016 BellSouth Network Solutions,
9583 774 946 Sify Limited
11492 767 781 Cable One
23577 763 777 KRNIC
7011 592 684 Citizens Utilities
19916 559 565 OLM LLC
4766 549 739 Korea Telecom (KIX)
9498 522 862 BHARTI BT INTERNET LTD.
15270 450 481 PaeTec.net -a division of Pae
4755 445 1015 Videsh Sanchar Nigam Ltd. Aut
855 434 539 Canadian Research Network
1239 421 846 Sprint
5668 421 540 CenturyTel Internet Holdings,
17849 416 430 Telecommunications Technology
18101 397 464 Reliance Infocom Ltd Internet
22773 378 715 Cox Communications, Inc.
33588 370 391 Bresnan Communications, LLC.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:7 6:1 8:55 12:1641 13:1 15:16
16:3 17:3 18:4 20:38 24:829 25:1
32:58 38:260 40:57 41:19 44:1 47:7
52:4 53:1 55:1 56:3 57:25 58:235
59:304 60:224 61:944 62:1029 63:1879 64:3111
65:2244 66:3055 67:651 68:652 69:1678 70:405
71:109 72:993 74:92 75:9 80:841 81:705
82:628 83:384 84:437 85:676 86:415 87:415
88:240 89:541 91:28 121:57 122:18 124:437
125:673 128:283 129:202 130:123 131:314 132:35
133:9 134:167 135:50 136:178 137:113 138:205
139:47 140:526 141:132 142:345 143:193 144:241
145:43 146:320 147:138 148:372 149:175 150:115
151:118 152:80 153:122 154:5 155:258 156:155
157:162 158:152 159:172 160:100 161:86 162:214
163:178 164:238 165:235 166:242 167:286 168:484
169:128 170:386 171:11 172:1 189:4 190:258
192:5748 193:3539 194:2748 195:2109 196:864 198:3878
199:3313 200:4561 201:939 202:6950 203:7118 204:3925
205:2107 206:2432 207:2961 208:2324 209:3531 210:2173
211:876 212:1338 213:1469 214:374 215:39 216:4073
217:1126 218:340 219:263 220:791 221:373 222:231
End of report
Report Website: http://thyme.apnic.net
