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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 04 May, 2006
Analysis Summary
----------------
BGP routing table entries examined: 187294
Prefixes after maximum aggregation: 103577
Unique aggregates announced to Internet: 91776
Total ASes present in the Internet Routing Table: 22075
Origin-only ASes present in the Internet Routing Table: 19198
Origin ASes announcing only one prefix: 9152
Transit ASes present in the Internet Routing Table: 2877
Transit-only ASes present in the Internet Routing Table: 66
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 26
Max AS path prepend of ASN (34527) 16
Prefixes from unregistered ASNs in the Routing Table: 31
Unregistered ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1530701472
Equivalent to 91 /8s, 60 /16s and 166 /24s
Percentage of available address space announced: 41.3
Percentage of allocated address space announced: 59.7
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 92157
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 39511
Total APNIC prefixes after maximum aggregation: 16512
Prefixes being announced from the APNIC address blocks: 37227
Unique aggregates announced from the APNIC address blocks: 18234
APNIC Region origin ASes present in the Internet Routing Table: 2546
APNIC Region origin ASes announcing only one prefix: 720
APNIC Region transit ASes present in the Internet Routing Table: 390
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 225008608
Equivalent to 13 /8s, 105 /16s and 91 /24s
Percentage of available APNIC address space announced: 70.4
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: 97024
Total ARIN prefixes after maximum aggregation: 57511
Prefixes being announced from the ARIN address blocks: 71212
Unique aggregates announced from the ARIN address blocks: 26331
ARIN Region origin ASes present in the Internet Routing Table: 10681
ARIN Region origin ASes announcing only one prefix: 4004
ARIN Region transit ASes present in the Internet Routing Table: 989
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 289878784
Equivalent to 17 /8s, 71 /16s and 51 /24s
Percentage of available ARIN address space announced: 75.1
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
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: 37472
Total RIPE prefixes after maximum aggregation: 25017
Prefixes being announced from the RIPE address blocks: 34415
Unique aggregates announced from the RIPE address blocks: 23139
RIPE Region origin ASes present in the Internet Routing Table: 7945
RIPE Region origin ASes announcing only one prefix: 4157
RIPE Region transit ASes present in the Internet Routing Table: 1311
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 247447488
Equivalent to 14 /8s, 191 /16s and 191 /24s
Percentage of available RIPE address space announced: 77.6
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
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: 11250
Total LACNIC prefixes after maximum aggregation: 3646
Prefixes being announced from the LACNIC address blocks: 9366
Unique aggregates announced from the LACNIC address blocks: 5450
LACNIC Region origin ASes present in the Internet Routing Table: 683
LACNIC Region origin ASes announcing only one prefix: 224
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: 26
Number of LACNIC addresses announced to Internet: 26515200
Equivalent to 1 /8s, 148 /16s and 151 /24s
Percentage of available LACNIC address space announced: 39.5
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: 2031
Total AfriNIC prefixes after maximum aggregation: 891
Prefixes being announced from the AfriNIC address blocks: 1460
Unique aggregates announced from the AfriNIC address blocks: 948
AfriNIC Region origin ASes present in the Internet Routing Table: 154
AfriNIC Region origin ASes announcing only one prefix: 47
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: 13
Number of AfriNIC addresses announced to Internet: 4061696
Equivalent to 0 /8s, 61 /16s and 250 /24s
Percentage of available AfriNIC address space announced: 12.1
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 1129 7088 221 CHINANET-BACKBONE
4755 912 259 72 Videsh Sanchar Nigam Ltd. Aut
9583 902 109 16 Sify Limited
4766 676 4435 303 Korea Telecom (KIX)
1221 616 1556 471 Telstra Pty Ltd
9498 566 211 67 BHARTI BT INTERNET LTD.
7545 530 124 70 TPG Internet Pty Ltd
17488 501 31 7 Hathway IP Over Cable Interne
17676 485 7013 107 Softbank BB Corp.
9443 450 110 81 Primus Telecommunications
4802 383 81 177 Wantree Development
17849 347 22 113 Telecommunications Technology
18101 337 85 24 Reliance Infocom Ltd Internet
2907 336 1749 312 SINET Japan
17557 325 27 157 Pakistan Telecom
9929 324 221 57 China Netcom Corp.
17974 307 120 29 PT TELEKOMUNIKASI INDONESIA
7474 298 211 228 SingTel Optus Pty Ltd
9800 273 410 67 CHINA UNICOM
9837 265 78 158 Powertel Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1509 6256 965 AT&T WorldNet Services
4323 1288 733 252 Time Warner Telecom
6197 1007 618 472 BellSouth Network Solutions,
721 1004 21945 305 DLA Systems Automation Center
174 962 5787 909 Cogent Communications
19029 951 151 111 New Edge Networks
18566 937 272 8 Covad Communications
701 926 8012 768 UUNET Technologies, Inc.
2386 876 522 675 AT&T Data Communications Serv
1239 846 2804 599 Sprint
209 707 3595 553 Qwest
19262 692 2057 162 Verizon Global Networks
20115 687 600 368 Charter Communications
22773 657 1737 44 Cox Communications, Inc.
7011 633 217 413 Citizens Utilities
11492 630 86 23 Cable One
852 582 1085 384 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 550 244 63 Canadian Research Network
3602 538 127 109 Sprint Canada, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 580 1951 456 UUNET - Commercial IP service
3352 310 1612 29 Ibernet, Internet Access Netw
3301 307 1071 292 TeliaNet Sweden
3320 289 3989 239 Deutsche Telekom AG
8220 289 474 267 COLT Telecommunications
680 245 2025 242 DFN-IP service G-WiN
3246 233 504 223 Song Networks
6746 228 89 203 Dynamic Network Technologies,
8708 218 276 201 Romania Data Systems S.A.
24863 207 40 9 LINKdotNET AS number
8551 202 198 24 Bezeq International
3269 198 2134 72 TELECOM ITALIA
3215 196 1662 93 France Telecom Transpac
1257 195 742 169 SWIPnet Swedish IP Network
8866 180 37 16 Bulgarian Telecommunication C
786 171 1778 171 The JANET IP Service
6830 169 765 35 UPC Distribution Services
9121 169 931 27 TTnet Autonomous System
5400 168 363 139 BT Ignite European Backbone
30890 167 15 66 SC Kappa Invexim SRL
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 691 1004 242 UniNet S.A. de C.V.
22047 408 158 11 VTR PUNTO NET S.A.
11172 325 110 85 Servicios Alestra S.A de C.V
16814 316 20 8 NSS, S.A.
6147 262 126 22 Telefonica Del Peru
14117 205 12 6 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
7303 162 76 20 Telecom Argentina Stet-France
21826 138 16 21 INTERCABLE
5639 132 12 9 Telecommunications Services o
11556 132 80 4 Cable-Wireless Panama
6503 130 149 79 AVANTEL, S.A.
19169 127 8 20 Telconet
14259 114 10 12 GTD Internet S.A.
23216 110 21 9 RAMtelecom Telecomunicaciones
6505 106 88 78 Global One Communicaoes Ltda
7910 105 7 10 ANDINET ON LINE
19429 103 58 44 E.T.B.
14522 99 13 7 SatNet S.A.
14571 97 25 3 Internet Group do Brasil
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 278 803 233 The Internet Solution
8452 170 60 7 TEDATA
6713 145 135 11 Itissalat Al-MAGHRIB
2018 123 314 104 Tertiary Education Network
5536 121 8 18 Internet Egypt Network
24835 117 50 7 RAYA Telecom - Egypt
2905 73 155 66 The Internetworking Company o
20928 57 16 2 Noor Advanced Technologies AS
15475 55 84 4 Nile Online
5713 39 294 35 Telkom SA Ltd
15706 31 8 3 Sudatel Internet Exchange Aut
33774 30 7 20 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
21280 23 5 5 Swift Global Kenya Ltd.Is an
10798 22 1 13 Standard Bank of South Africa
2561 19 6 2 Egyptian Universities Network
21491 19 17 2 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1288 1036 Time Warner Telecom
18566 937 929 Covad Communications
4134 1129 908 CHINANET-BACKBONE
9583 902 886 Sify Limited
19029 951 840 New Edge Networks
4755 912 840 Videsh Sanchar Nigam Ltd. Aut
721 1004 699 DLA Systems Automation Center
22773 657 613 Cox Communications, Inc.
11492 630 607 Cable One
6197 1007 535 BellSouth Network Solutions,
19262 692 530 Verizon Global Networks
5668 534 511 CenturyTel Internet Holdings,
19916 563 509 OLM LLC
9498 566 499 BHARTI BT INTERNET LTD.
17488 501 494 Hathway IP Over Cable Interne
855 550 487 Canadian Research Network
7545 530 460 TPG Internet Pty Ltd
8151 691 449 UniNet S.A. de C.V.
3602 538 429 Sprint Canada, Inc.
22047 408 397 VTR PUNTO NET S.A.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
36656 UNALLOCATED 64.18.154.0/24 19318 Albany International
36656 UNALLOCATED 64.20.54.0/24 19318 Albany International
36656 UNALLOCATED 64.20.55.0/24 19318 Albany International
36656 UNALLOCATED 64.20.57.0/24 19318 Albany International
36656 UNALLOCATED 64.20.58.0/24 19318 Albany International
36656 UNALLOCATED 64.20.59.0/24 19318 Albany International
36656 UNALLOCATED 64.20.60.0/24 19318 Albany International
36656 UNALLOCATED 64.20.61.0/24 19318 Albany International
36656 UNALLOCATED 64.20.62.0/24 19318 Albany International
65241 PRIVATE 65.90.71.0/24 10794 Bank of America
36727 UNALLOCATED 74.128.0.0/15 3356 Level 3 Communicatio
36727 UNALLOCATED 74.128.0.0/13 3356 Level 3 Communicatio
36727 UNALLOCATED 74.130.0.0/16 3356 Level 3 Communicatio
36727 UNALLOCATED 74.131.0.0/16 3356 Level 3 Communicatio
36727 UNALLOCATED 74.132.0.0/16 3356 Level 3 Communicatio
36727 UNALLOCATED 74.133.0.0/17 3356 Level 3 Communicatio
36727 UNALLOCATED 74.133.128.0/18 3356 Level 3 Communicatio
36727 UNALLOCATED 74.134.0.0/15 1239 Sprint
36727 UNALLOCATED 74.136.0.0/16 1239 Sprint
36727 UNALLOCATED 74.136.0.0/15 3356 Level 3 Communicatio
36727 UNALLOCATED 74.137.0.0/18 3356 Level 3 Communicatio
36727 UNALLOCATED 74.137.64.0/20 3356 Level 3 Communicatio
36727 UNALLOCATED 74.137.80.0/20 3356 Level 3 Communicatio
36727 UNALLOCATED 74.137.96.0/20 3356 Level 3 Communicatio
36727 UNALLOCATED 74.137.112.0/20 1239 Sprint
36727 UNALLOCATED 74.137.128.0/17 3356 Level 3 Communicatio
65000 PRIVATE 85.90.108.0/22 8570 Public Data Network
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
65280 PRIVATE 203.197.161.0/24 4755 Videsh Sanchar Nigam
65280 PRIVATE 203.200.14.0/24 4755 Videsh Sanchar Nigam
65280 PRIVATE 203.200.21.0/24 4755 Videsh Sanchar Nigam
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
192.119.135.0/24 270 NASA
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 /12:89
/13:200 /14:361 /15:707 /16:8791 /17:3194 /18:5271
/19:11581 /20:13091 /21:11314 /22:14500 /23:15580 /24:101489
/25:383 /26:268 /27:214 /28:62 /29:70 /30:35
/31:0 /32:30
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 920 937 Covad Communications
19029 882 951 New Edge Networks
7018 802 1509 AT&T WorldNet Services
6197 796 1007 BellSouth Network Solutions,
9583 731 902 Sify Limited
4323 632 1288 Time Warner Telecom
11492 621 630 Cable One
2386 596 876 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 542 633 Citizens Utilities
4766 486 676 Korea Telecom (KIX)
855 425 550 Canadian Research Network
5668 414 534 CenturyTel Internet Holdings,
1239 383 846 Sprint
15270 380 411 PaeTec.net -a division of Pae
702 359 580 UUNET - Commercial IP service
6198 356 505 BellSouth Network Solutions,
6517 356 386 Yipes Communications, Inc.
17849 347 347 Telecommunications Technology
22773 344 657 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 8:43 12:1633 13:1 15:12 16:3
17:3 18:4 20:43 24:739 25:1 30:2
32:59 38:210 40:54 41:1 44:3 47:6
52:4 55:1 56:3 57:25 58:149 59:188
60:177 61:835 62:762 63:1925 64:3149 65:2203
66:2987 67:600 68:659 69:1468 70:328 71:78
72:689 73:23 74:31 80:792 81:598 82:540
83:383 84:382 85:528 86:384 87:323 88:77
89:161 124:263 125:381 128:165 129:181 130:108
131:320 132:28 133:8 134:158 135:46 136:179
137:71 138:197 139:63 140:465 141:133 142:384
143:159 144:224 145:43 146:324 147:136 148:330
149:186 150:116 151:80 152:64 153:107 154:6
155:196 156:97 157:142 158:162 159:171 160:87
161:72 162:257 163:145 164:180 165:194 166:163
167:246 168:481 169:132 170:318 171:13 183:1
190:59 192:5735 193:3363 194:2605 195:1842 196:845
198:3903 199:3236 200:4447 201:919 202:6600 203:6878
204:3888 205:2071 206:2410 207:2939 208:2068 209:3801
210:1918 211:684 212:1247 213:1483 214:354 215:41
216:4116 217:1170 218:274 219:182 220:652 221:359
222:147
End of report
