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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 04 Jul, 2006
Analysis Summary
----------------
BGP routing table entries examined: 191209
Prefixes after maximum aggregation: 105381
Unique aggregates announced to Internet: 93609
Total ASes present in the Internet Routing Table: 22568
Origin-only ASes present in the Internet Routing Table: 19634
Origin ASes announcing only one prefix: 9420
Transit ASes present in the Internet Routing Table: 2934
Transit-only ASes present in the Internet Routing Table: 63
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 24
Max AS path prepend of ASN (32609) 16
Prefixes from unregistered ASNs in the Routing Table: 2
Unregistered ASNs in the Routing Table: 3
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 9
Number of addresses announced to Internet: 1538708712
Equivalent to 91 /8s, 182 /16s and 212 /24s
Percentage of available address space announced: 41.5
Percentage of allocated address space announced: 60.1
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 94560
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 41183
Total APNIC prefixes after maximum aggregation: 16957
Prefixes being announced from the APNIC address blocks: 38889
Unique aggregates announced from the APNIC address blocks: 18398
APNIC Region origin ASes present in the Internet Routing Table: 2619
APNIC Region origin ASes announcing only one prefix: 744
APNIC Region transit ASes present in the Internet Routing Table: 397
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 234893152
Equivalent to 14 /8s, 0 /16s and 47 /24s
Percentage of available APNIC address space announced: 73.4
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: 97649
Total ARIN prefixes after maximum aggregation: 58067
Prefixes being announced from the ARIN address blocks: 71571
Unique aggregates announced from the ARIN address blocks: 27027
ARIN Region origin ASes present in the Internet Routing Table: 10804
ARIN Region origin ASes announcing only one prefix: 4080
ARIN Region transit ASes present in the Internet Routing Table: 990
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 295013888
Equivalent to 17 /8s, 149 /16s and 142 /24s
Percentage of available ARIN address space announced: 76.5
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, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 38380
Total RIPE prefixes after maximum aggregation: 25710
Prefixes being announced from the RIPE address blocks: 35427
Unique aggregates announced from the RIPE address blocks: 23894
RIPE Region origin ASes present in the Internet Routing Table: 8217
RIPE Region origin ASes announcing only one prefix: 4316
RIPE Region transit ASes present in the Internet Routing Table: 1355
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 255213444
Equivalent to 15 /8s, 54 /16s and 63 /24s
Percentage of available RIPE address space announced: 80.1
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, 80/5, 88/6, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 11709
Total LACNIC prefixes after maximum aggregation: 3747
Prefixes being announced from the LACNIC address blocks: 9825
Unique aggregates announced from the LACNIC address blocks: 5596
LACNIC Region origin ASes present in the Internet Routing Table: 707
LACNIC Region origin ASes announcing only one prefix: 237
LACNIC Region transit ASes present in the Internet Routing Table: 133
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 28072448
Equivalent to 1 /8s, 172 /16s and 90 /24s
Percentage of available LACNIC address space announced: 41.8
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: 2286
Total AfriNIC prefixes after maximum aggregation: 900
Prefixes being announced from the AfriNIC address blocks: 1546
Unique aggregates announced from the AfriNIC address blocks: 952
AfriNIC Region origin ASes present in the Internet Routing Table: 158
AfriNIC Region origin ASes announcing only one prefix: 43
AfriNIC Region transit ASes present in the Internet Routing Table: 26
Average AfriNIC Region AS path length visible: 3.5
Max AfriNIC Region AS path length visible: 11
Number of AfriNIC addresses announced to Internet: 4162048
Equivalent to 0 /8s, 63 /16s and 130 /24s
Percentage of available AfriNIC address space announced: 12.4
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 1242 7262 223 CHINANET-BACKBONE
4755 948 258 76 Videsh Sanchar Nigam Ltd. Aut
9583 916 109 15 Sify Limited
4766 689 4435 303 Korea Telecom (KIX)
9498 680 211 68 BHARTI BT INTERNET LTD.
1221 613 1668 470 Telstra Pty Ltd
7545 547 124 71 TPG Internet Pty Ltd
17676 490 7093 110 Softbank BB Corp.
17488 457 28 33 Hathway IP Over Cable Interne
9443 452 111 83 Primus Telecommunications
18101 421 85 24 Reliance Infocom Ltd Internet
17849 387 28 121 Telecommunications Technology
17557 382 30 172 Pakistan Telecom
17974 382 129 14 PT TELEKOMUNIKASI INDONESIA
4802 380 81 167 Wantree Development
2907 335 1733 311 SINET Japan
9929 330 255 61 China Netcom Corp.
7474 298 211 228 SingTel Optus Pty Ltd
10139 283 19 5 Meridian Telekoms
4837 280 3085 123 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1474 6261 953 AT&T WorldNet Services
4323 1332 747 266 Time Warner Telecom
721 1018 21998 314 DLA Systems Automation Center
6197 1015 636 477 BellSouth Network Solutions,
174 961 5771 895 Cogent Communications
701 947 6754 780 UUNET Technologies, Inc.
18566 945 272 8 Covad Communications
2386 916 560 710 AT&T Data Communications Serv
1239 843 2776 599 Sprint
19262 720 2168 188 Verizon Global Networks
20115 713 619 381 Charter Communications
209 697 3681 550 Qwest
22773 670 1741 40 Cox Communications, Inc.
7011 648 218 412 Citizens Utilities
11492 642 89 10 Cable One
6198 599 568 236 BellSouth Network Solutions,
852 582 1084 382 Telus Advanced Communications
855 573 247 74 Canadian Research Network
19916 563 49 54 OLM LLC
5668 529 147 23 CenturyTel Internet Holdings,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 565 1932 444 UUNET - Commercial IP service
3301 312 1327 297 TeliaNet Sweden
3352 305 1643 30 Ibernet, Internet Access Netw
3320 282 3988 237 Deutsche Telekom AG
8220 280 471 266 COLT Telecommunications
680 246 2041 243 DFN-IP service G-WiN
6746 233 89 208 Dynamic Network Technologies,
3246 230 463 220 Song Networks
24863 216 42 11 LINKdotNET AS number
8708 214 276 203 Romania Data Systems S.A.
8551 209 198 29 Bezeq International
3215 202 1728 96 France Telecom Transpac
3269 202 2184 73 TELECOM ITALIA
30890 199 18 78 SC Kappa Invexim SRL
1257 194 741 166 SWIPnet Swedish IP Network
8866 187 37 15 Bulgarian Telecommunication C
6830 175 813 37 UPC Distribution Services
786 169 1778 169 The JANET IP Service
3300 169 171 98 AUCS Communications Services
12479 161 322 5 Uni2 Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 712 1114 225 UniNet S.A. de C.V.
22047 419 174 11 VTR PUNTO NET S.A.
11172 356 113 86 Servicios Alestra S.A de C.V
16814 328 20 7 NSS, S.A.
6147 267 134 22 Telefonica Del Peru
14117 207 13 7 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
6503 180 151 84 AVANTEL, S.A.
7303 177 82 25 Telecom Argentina Stet-France
21826 133 17 23 INTERCABLE
11556 132 80 4 Cable-Wireless Panama
19429 130 68 43 E.T.B.
19169 129 8 25 Telconet
14259 119 10 15 GTD Internet S.A.
14522 117 18 9 SatNet S.A.
23216 115 21 9 RAMtelecom Telecomunicaciones
6505 109 88 79 Global One Communicaoes Ltda
7738 106 410 20 Telecomunicacoes da Bahia S.A
7910 105 7 10 ANDINET ON LINE
5639 103 12 9 Telecommunications Services o
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 287 803 234 The Internet Solution
8452 167 60 7 TEDATA
6713 154 135 11 Itissalat Al-MAGHRIB
2018 135 314 105 Tertiary Education Network
5536 121 8 18 Internet Egypt Network
24835 116 48 6 RAYA Telecom - Egypt
15475 112 84 4 Nile Online
33783 105 6 2 EEPAD TISP TELECOM & INTERNET
2905 69 139 60 The Internetworking Company o
20928 60 16 3 Noor Advanced Technologies AS
15706 44 8 3 Sudatel Internet Exchange Aut
5713 39 294 35 Telkom SA Ltd
33774 31 7 21 AS Number for Telecom Algeria
16637 25 18 23 Johnnic e-Ventures
12455 23 6 3 Jambonet Autonomous system
21280 23 4 4 Swift Global Kenya Ltd.Is an
23889 23 8 11 MAURITIUS TELECOM
8524 22 1 5 AUCEGYPT Autonomous System
10798 22 1 13 Standard Bank of South Africa
33766 21 2 1 Nyala Communications Pty Ltd
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1332 1066 Time Warner Telecom
4134 1242 1019 CHINANET-BACKBONE
18566 945 937 Covad Communications
9583 916 901 Sify Limited
4755 948 872 Videsh Sanchar Nigam Ltd. Aut
721 1018 704 DLA Systems Automation Center
11492 642 632 Cable One
22773 670 630 Cox Communications, Inc.
9498 680 612 BHARTI BT INTERNET LTD.
6197 1015 538 BellSouth Network Solutions,
19262 720 532 Verizon Global Networks
19916 563 509 OLM LLC
5668 529 506 CenturyTel Internet Holdings,
855 573 499 Canadian Research Network
8151 712 487 UniNet S.A. de C.V.
7545 547 476 TPG Internet Pty Ltd
17488 457 424 Hathway IP Over Cable Interne
3602 525 421 Sprint Canada, Inc.
22047 419 408 VTR PUNTO NET S.A.
15270 440 407 PaeTec.net -a division of Pae
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
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 /8:17 /9:9 /10:10 /11:28 /12:93
/13:201 /14:364 /15:714 /16:8863 /17:3284 /18:5413
/19:11807 /20:13419 /21:11708 /22:14809 /23:15964 /24:103417
/25:388 /26:295 /27:180 /28:65 /29:66 /30:55
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 928 945 Covad Communications
6197 795 1015 BellSouth Network Solutions,
7018 784 1474 AT&T WorldNet Services
9583 746 916 Sify Limited
4323 645 1332 Time Warner Telecom
2386 633 916 AT&T Data Communications Serv
11492 630 642 Cable One
7011 557 648 Citizens Utilities
19916 557 563 OLM LLC
4766 500 689 Korea Telecom (KIX)
855 447 573 Canadian Research Network
6198 441 599 BellSouth Network Solutions,
5668 412 529 CenturyTel Internet Holdings,
15270 409 440 PaeTec.net -a division of Pae
1239 387 843 Sprint
9498 382 680 BHARTI BT INTERNET LTD.
17849 381 387 Telecommunications Technology
4755 379 948 Videsh Sanchar Nigam Ltd. Aut
6517 367 398 Yipes Communications, Inc.
22773 352 670 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:41 12:1610 13:1 15:16 16:3
17:3 18:4 20:41 24:769 25:1 32:58
38:228 40:54 41:3 44:3 47:6 52:4
55:1 56:3 57:24 58:186 59:246 60:177
61:845 62:798 63:1887 64:3172 65:2245 66:3116
67:618 68:671 69:1521 70:388 71:85 72:798
74:50 75:1 80:781 81:647 82:626 83:384
84:374 85:559 86:386 87:392 88:99 89:310
121:1 122:2 123:1 124:262 125:528 128:139
129:189 130:119 131:311 132:34 133:8 134:160
135:48 136:178 137:83 138:153 139:55 140:490
141:134 142:385 143:168 144:224 145:39 146:320
147:137 148:342 149:191 150:114 151:94 152:69
153:106 154:5 155:206 156:184 157:146 158:167
159:172 160:91 161:77 162:244 163:158 164:187
165:217 166:172 167:239 168:494 169:128 170:352
171:14 183:1 190:82 192:5732 193:3365 194:2639
195:1965 196:873 198:3958 199:3231 200:4512 201:997
202:6723 203:7018 204:3898 205:2045 206:2432 207:2917
208:2177 209:3399 210:2038 211:709 212:1259 213:1478
214:355 215:41 216:4010 217:1167 218:294 219:239
220:729 221:364 222:189
End of report
