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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 31 May, 2006
Analysis Summary
----------------
BGP routing table entries examined: 189299
Prefixes after maximum aggregation: 104467
Unique aggregates announced to Internet: 92657
Total ASes present in the Internet Routing Table: 22326
Origin-only ASes present in the Internet Routing Table: 19420
Origin ASes announcing only one prefix: 9291
Transit ASes present in the Internet Routing Table: 2906
Transit-only ASes present in the Internet Routing Table: 61
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 18
Max AS path prepend of ASN (32609) 16
Prefixes from unregistered ASNs in the Routing Table: 4
Unregistered ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 9
Number of addresses announced to Internet: 1540528104
Equivalent to 91 /8s, 210 /16s and 151 /24s
Percentage of available address space announced: 41.6
Percentage of allocated address space announced: 60.1
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 93775
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 40235
Total APNIC prefixes after maximum aggregation: 16773
Prefixes being announced from the APNIC address blocks: 37956
Unique aggregates announced from the APNIC address blocks: 18398
APNIC Region origin ASes present in the Internet Routing Table: 2583
APNIC Region origin ASes announcing only one prefix: 741
APNIC Region transit ASes present in the Internet Routing Table: 398
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 227039584
Equivalent to 13 /8s, 136 /16s and 89 /24s
Percentage of available APNIC address space announced: 71.0
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: 97617
Total ARIN prefixes after maximum aggregation: 57764
Prefixes being announced from the ARIN address blocks: 71607
Unique aggregates announced from the ARIN address blocks: 26494
ARIN Region origin ASes present in the Internet Routing Table: 10739
ARIN Region origin ASes announcing only one prefix: 4038
ARIN Region transit ASes present in the Internet Routing Table: 987
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 292839168
Equivalent to 17 /8s, 116 /16s and 95 /24s
Percentage of available ARIN address space announced: 75.9
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, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 37901
Total RIPE prefixes after maximum aggregation: 25339
Prefixes being announced from the RIPE address blocks: 34914
Unique aggregates announced from the RIPE address blocks: 23550
RIPE Region origin ASes present in the Internet Routing Table: 8093
RIPE Region origin ASes announcing only one prefix: 4237
RIPE Region transit ASes present in the Internet Routing Table: 1328
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 250872452
Equivalent to 14 /8s, 244 /16s and 2 /24s
Percentage of available RIPE address space announced: 78.7
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
40960-41983
RIPE Address Blocks 62/8, 80/5, 88/6, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 11362
Total LACNIC prefixes after maximum aggregation: 3696
Prefixes being announced from the LACNIC address blocks: 9468
Unique aggregates announced from the LACNIC address blocks: 5536
LACNIC Region origin ASes present in the Internet Routing Table: 693
LACNIC Region origin ASes announcing only one prefix: 228
LACNIC Region transit ASes present in the Internet Routing Table: 135
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 17
Number of LACNIC addresses announced to Internet: 27181312
Equivalent to 1 /8s, 158 /16s and 193 /24s
Percentage of available LACNIC address space announced: 40.5
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: 2180
Total AfriNIC prefixes after maximum aggregation: 895
Prefixes being announced from the AfriNIC address blocks: 1499
Unique aggregates announced from the AfriNIC address blocks: 958
AfriNIC Region origin ASes present in the Internet Routing Table: 157
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: 3.4
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC addresses announced to Internet: 4107776
Equivalent to 0 /8s, 62 /16s and 174 /24s
Percentage of available AfriNIC address space announced: 12.2
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 1194 7100 219 CHINANET-BACKBONE
9583 876 109 16 Sify Limited
4755 860 257 67 Videsh Sanchar Nigam Ltd. Aut
4766 688 4435 304 Korea Telecom (KIX)
1221 610 1668 468 Telstra Pty Ltd
9498 567 211 67 BHARTI BT INTERNET LTD.
7545 533 124 70 TPG Internet Pty Ltd
17488 514 32 9 Hathway IP Over Cable Interne
17676 486 7029 110 Softbank BB Corp.
9443 450 110 81 Primus Telecommunications
18101 411 85 24 Reliance Infocom Ltd Internet
17557 391 30 178 Pakistan Telecom
4802 377 80 172 Wantree Development
17849 352 22 114 Telecommunications Technology
17974 348 119 18 PT TELEKOMUNIKASI INDONESIA
2907 335 1733 312 SINET Japan
9929 324 221 57 China Netcom Corp.
7474 299 211 229 SingTel Optus Pty Ltd
9800 274 410 67 CHINA UNICOM
9837 267 78 160 Powertel Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1493 6217 960 AT&T WorldNet Services
4323 1294 736 254 Time Warner Telecom
6197 1007 623 473 BellSouth Network Solutions,
721 998 21961 305 DLA Systems Automation Center
174 966 5788 901 Cogent Communications
19029 947 151 109 New Edge Networks
18566 942 272 8 Covad Communications
701 940 6765 776 UUNET Technologies, Inc.
2386 887 523 682 AT&T Data Communications Serv
1239 845 2789 599 Sprint
19262 704 2104 180 Verizon Global Networks
20115 704 613 380 Charter Communications
209 703 3685 547 Qwest
22773 658 1741 40 Cox Communications, Inc.
7011 636 218 414 Citizens Utilities
11492 621 87 21 Cable One
6478 579 1544 342 AT&T Worldnet Services
852 578 1084 380 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 553 244 64 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 576 1952 454 UUNET - Commercial IP service
3301 308 1072 294 TeliaNet Sweden
3352 308 1644 30 Ibernet, Internet Access Netw
3320 287 3989 240 Deutsche Telekom AG
8220 278 471 266 COLT Telecommunications
680 245 2025 242 DFN-IP service G-WiN
6746 237 89 211 Dynamic Network Technologies,
3246 235 504 225 Song Networks
8708 216 275 201 Romania Data Systems S.A.
24863 213 42 10 LINKdotNET AS number
8551 200 198 24 Bezeq International
3215 199 1664 94 France Telecom Transpac
3269 198 2134 72 TELECOM ITALIA
1257 193 740 168 SWIPnet Swedish IP Network
30890 189 17 70 SC Kappa Invexim SRL
8866 175 37 16 Bulgarian Telecommunication C
5400 172 348 141 BT Ignite European Backbone
6830 172 781 36 UPC Distribution Services
786 171 1778 171 The JANET IP Service
9121 169 931 27 TTnet Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 700 1082 222 UniNet S.A. de C.V.
22047 417 158 11 VTR PUNTO NET S.A.
16814 330 20 8 NSS, S.A.
11172 325 110 86 Servicios Alestra S.A de C.V
6147 262 126 22 Telefonica Del Peru
14117 201 12 6 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
7303 170 80 25 Telecom Argentina Stet-France
6503 136 150 79 AVANTEL, S.A.
21826 133 17 23 INTERCABLE
11556 132 80 4 Cable-Wireless Panama
19169 129 8 21 Telconet
14259 119 10 15 GTD Internet S.A.
23216 113 21 9 RAMtelecom Telecomunicaciones
6505 109 88 79 Global One Communicaoes Ltda
19429 107 59 45 E.T.B.
7910 105 7 10 ANDINET ON LINE
5639 103 12 9 Telecommunications Services o
14522 101 16 9 SatNet S.A.
18822 98 7 9 TELEFONICA MANQUEHUE
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 283 803 233 The Internet Solution
8452 167 60 7 TEDATA
6713 145 135 11 Itissalat Al-MAGHRIB
2018 131 314 105 Tertiary Education Network
5536 121 8 18 Internet Egypt Network
24835 117 50 7 RAYA Telecom - Egypt
33783 104 6 2 EEPAD TISP TELECOM & INTERNET
2905 73 155 66 The Internetworking Company o
20928 58 16 2 Noor Advanced Technologies AS
15475 54 84 4 Nile Online
15706 44 8 3 Sudatel Internet Exchange Aut
5713 39 294 35 Telkom SA Ltd
33774 31 7 21 AS Number for Telecom Algeria
12455 27 6 3 Jambonet Autonomous system
23889 26 8 11 MAURITIUS TELECOM
8524 24 1 4 AUCEGYPT Autonomous System
16637 24 14 22 Johnnic e-Ventures
10798 22 1 13 Standard Bank of South Africa
21280 21 4 4 Swift Global Kenya Ltd.Is an
33766 21 2 1 Nyala Communications Pty Ltd
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1294 1040 Time Warner Telecom
4134 1194 975 CHINANET-BACKBONE
18566 942 934 Covad Communications
9583 876 860 Sify Limited
19029 947 838 New Edge Networks
4755 860 793 Videsh Sanchar Nigam Ltd. Aut
721 998 693 DLA Systems Automation Center
22773 658 618 Cox Communications, Inc.
11492 621 600 Cable One
6197 1007 534 BellSouth Network Solutions,
19262 704 524 Verizon Global Networks
19916 563 509 OLM LLC
5668 529 506 CenturyTel Internet Holdings,
17488 514 505 Hathway IP Over Cable Interne
9498 567 500 BHARTI BT INTERNET LTD.
855 553 489 Canadian Research Network
8151 700 478 UniNet S.A. de C.V.
7545 533 463 TPG Internet Pty Ltd
3602 538 428 Sprint Canada, Inc.
22047 417 406 VTR PUNTO NET S.A.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65128 PRIVATE 193.110.50.0/24 24652 Juniper Networks, Eu
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
64515 PRIVATE 203.126.13.0/25 7610 SINGAPORE ADVANCE RE
64515 PRIVATE 203.126.13.128/26 7610 SINGAPORE ADVANCE RE
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
183.206.196.0/24 2188 FR-RENATER-ASTER
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
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 /10:9 /11:28 /12:91
/13:200 /14:360 /15:706 /16:8831 /17:3239 /18:5358
/19:11687 /20:13195 /21:11475 /22:14655 /23:15822 /24:102577
/25:367 /26:277 /27:185 /28:51 /29:68 /30:50
/31:0 /32:41
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 925 942 Covad Communications
19029 878 947 New Edge Networks
6197 795 1007 BellSouth Network Solutions,
7018 785 1493 AT&T WorldNet Services
9583 706 876 Sify Limited
4323 636 1294 Time Warner Telecom
11492 612 621 Cable One
2386 610 887 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 545 636 Citizens Utilities
4766 498 688 Korea Telecom (KIX)
855 427 553 Canadian Research Network
5668 412 529 CenturyTel Internet Holdings,
15270 401 432 PaeTec.net -a division of Pae
1239 391 845 Sprint
6517 363 394 Yipes Communications, Inc.
702 358 576 UUNET - Commercial IP service
6198 356 509 BellSouth Network Solutions,
17849 352 352 Telecommunications Technology
33588 348 366 Bresnan Communications, LLC.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:42 12:1625 13:1 15:14 16:3
17:3 18:4 20:43 24:734 25:1 30:2
32:58 38:224 40:54 41:3 44:3 47:6
52:4 55:1 56:3 57:25 58:178 59:199
60:183 61:858 62:770 63:1924 64:3176 65:2255
66:3033 67:613 68:667 69:1523 70:365 71:87
72:730 73:23 74:38 80:773 81:654 82:596
83:402 84:391 85:539 86:397 87:351 88:85
89:221 124:282 125:458 128:152 129:191 130:117
131:316 132:33 133:8 134:159 135:48 136:178
137:75 138:208 139:70 140:470 141:129 142:380
143:165 144:224 145:39 146:328 147:136 148:312
149:188 150:114 151:90 152:68 153:107 154:5
155:201 156:99 157:148 158:167 159:172 160:89
161:76 162:245 163:147 164:177 165:207 166:166
167:244 168:488 169:127 170:338 171:14 183:1
190:75 192:5743 193:3369 194:2632 195:1891 196:850
198:3903 199:3216 200:4436 201:945 202:6636 203:6954
204:3810 205:2060 206:2415 207:2887 208:2126 209:3805
210:1954 211:677 212:1257 213:1454 214:359 215:40
216:4133 217:1161 218:290 219:221 220:712 221:354
222:164
End of report
