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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 07 Dec, 2004
Analysis Summary
----------------
BGP routing table entries examined: 151931
Prefixes after maximum aggregation: 89439
Unique aggregates announced to Internet: 72687
Total ASes present in the Internet Routing Table: 18572
Origin-only ASes present in the Internet Routing Table: 16114
Origin ASes announcing only one prefix: 7564
Transit ASes present in the Internet Routing Table: 2458
Transit-only ASes present in the Internet Routing Table: 77
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 17
Prefixes from unregistered ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1358802788
Equivalent to 80 /8s, 253 /16s and 175 /24s
Percentage of available address space announced: 36.7
Percentage of allocated address space announced: 59.2
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 70177
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 29522
Total APNIC prefixes after maximum aggregation: 14561
Prefixes being announced from the APNIC address blocks: 27578
Unique aggregates announced from the APNIC address blocks: 14419
APNIC Region origin ASes present in the Internet Routing Table: 2167
APNIC Region origin ASes announcing only one prefix: 651
APNIC Region transit ASes present in the Internet Routing Table: 332
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 168579072
Equivalent to 10 /8s, 12 /16s and 80 /24s
Percentage of available APNIC address space announced: 76.9
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 85978
Total ARIN prefixes after maximum aggregation: 52055
Prefixes being announced from the ARIN address blocks: 65809
Unique aggregates announced from the ARIN address blocks: 23624
ARIN Region origin ASes present in the Internet Routing Table: 9753
ARIN Region origin ASes announcing only one prefix: 3522
ARIN Region transit ASes present in the Internet Routing Table: 967
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 236381696
Equivalent to 14 /8s, 22 /16s and 230 /24s
Percentage of available ARIN address space announced: 70.4
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
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,
26624-27647,29695-30719, 31744-33791
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 28450
Total RIPE prefixes after maximum aggregation: 19725
Prefixes being announced from the RIPE address blocks: 25318
Unique aggregates announced from the RIPE address blocks: 16537
RIPE Region origin ASes present in the Internet Routing Table: 6077
RIPE Region origin ASes announcing only one prefix: 3251
RIPE Region transit ASes present in the Internet Routing Table: 1035
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 181714944
Equivalent to 10 /8s, 212 /16s and 192 /24s
Percentage of available RIPE address space announced: 63.7
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-34815
RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 6728
Total LACNIC prefixes after maximum aggregation: 2399
Prefixes being announced from the LACNIC address blocks: 6561
Unique aggregates announced from the LACNIC address blocks: 4006
LACNIC Region origin ASes present in the Internet Routing Table: 406
LACNIC Region origin ASes announcing only one prefix: 119
LACNIC Region transit ASes present in the Internet Routing Table: 81
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 16880128
Equivalent to 1 /8s, 1 /16s and 146 /24s
Percentage of available LACNIC address space announced: 50.3
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1246
Total AfriNIC prefixes after maximum aggregation: 699
Prefixes being announced from the AfriNIC address blocks: 846
Unique aggregates announced from the AfriNIC address blocks: 670
AfriNIC Region origin ASes present in the Internet Routing Table: 94
AfriNIC Region origin ASes announcing only one prefix: 21
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2088704
Equivalent to 0 /8s, 31 /16s and 223 /24s
Percentage of available AfriNIC address space announced: 12.4
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 862 4405 164 Data Communications Bureau
1221 792 1182 569 Telstra Pty Ltd
9583 566 47 40 Satyam Infoway Ltd.,
4766 548 3409 270 Korea Internet Exchange for "
4755 401 142 74 Videsh Sanchar Nigam Ltd. Aut
17676 391 5868 57 XTAGE CORPORATION
9443 356 69 80 Primus Telecommunications
2907 354 1857 328 SINET Japan
9929 346 162 34 China Netcom Corp.
17557 324 23 158 Pakistan Telecom
703 322 350 247 UUNET
2764 284 272 232 connect.com.au pty ltd
7474 270 268 200 Optus Communications Pty Ltd
4802 233 28 141 Wantree Development
9800 232 381 71 CHINA UNICOM
9498 228 81 53 BHARTI BT INTERNET LTD.
7563 226 48 164 Korea Internet Infrastructure
10036 217 20 198 C&M Communication Co. Ltd.
17974 216 62 10 PT TELEKOMUNIKASI INDONESIA
4814 213 232 6 China Telecom (Group)
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1427 6633 987 AT&T WorldNet Services
701 1066 8383 880 UUNET Technologies, Inc.
721 1040 21084 305 DLA Systems Automation Center
1239 930 2881 619 Sprint
2386 850 530 614 AT&T Data Communications Serv
6197 815 381 352 BellSouth Network Solutions,
4323 811 670 220 Time Warner Telecom
18566 753 208 6 Covad Communications
209 657 3426 508 Qwest
3356 644 10962 460 Level 3 Communications, LLC
20115 591 460 316 Charter Communications
3561 545 2368 414 Cable & Wireless USA
852 522 1142 404 Telus Advanced Communications
7843 478 726 88 Adelphia Corp.
7132 453 8292 385 SBC Internet Services
6198 444 378 203 BellSouth Network Solutions,
27364 443 36 19 Armstrong Cable Services
6478 442 782 95 AT&T Worldnet Services
5668 417 87 18 Century Telephone
22909 416 897 60 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 631 2024 522 UUNET - Commercial IP service
3320 304 2997 238 Deutsche Telekom AG
8220 280 464 265 COLT Internet - International
3301 279 1098 270 TeliaNet Sweden
21502 272 40 3 NUMERICABLE is a cabled netwo
680 251 2025 239 DFN-IP service G-WiN
3246 224 482 220 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 210 722 175 SWIPnet Swedish IP Network
8708 204 116 188 Romania Data Systems S.A.
5515 193 842 140 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
3215 165 982 80 France Telecom Transpac
8866 160 20 7 Bulgarian Telecommunication C
719 159 322 104 LANLINK autonomous system
6746 158 46 128 Dynamic Network Technologies,
3269 155 1329 69 TELECOM ITALIA
3300 155 167 79 AUCS Communications Services
25186 146 154 102 France Telecom Transpac's Tra
3303 132 611 128 Swisscom Ltd
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 350 139 79 ImpSat
8151 311 471 137 UniNet S.A. de C.V.
16814 218 14 6 NSS, S.A.
11172 215 99 55 Servicios Alestra S.A de C.V
6147 191 94 20 Telefonica Del Peru
11664 168 14 20 Keytech SA
7303 145 67 24 Telecom Argentina Stet-France
6505 141 90 97 Global One Communicaoes Ltda
6503 128 148 85 AVANTEL, S.A.
11992 103 9 31 Integrated Systems
14117 98 6 4 Telefonica del Sur S.A.
11556 97 48 3 Cable-Wireless Panama
11311 86 8 23 Sinectis S.A.
6535 84 7 25 Chilesat Servicios Empresari
13999 83 52 9 Mega Cable S.A. de C.V.
10481 82 32 7 Prima S.A.
14420 81 5 43 ANDINATEL S.A.
4270 80 18 9 Red de Interconexion Universi
5639 77 8 8 Telecommunications Services o
15311 77 23 37 Telefonica Empresas
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 269 636 226 The Internet Solution
5536 111 16 4 Internet Egypt Network
2018 102 297 98 Tertiary Education Network
2905 79 272 71 The Internetworking Company o
20928 54 16 1 Noor Advanced Technologies AS
24835 42 34 7 RAYA Telecom - Egypt
6713 34 38 9 Itissalat Al-MAGHRIB
9129 31 3 2 UUNET Kenya
5713 28 141 25 Telkom SA Ltd
8524 25 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
12455 20 6 3 Jambonet Autonomous system
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
8452 17 20 5 TEDATA
21280 16 2 3 Swift Global Kenya Ltd.Is an
8346 15 7 14 SONATEL-AS Autonomous System
15706 15 4 2 Sudatel Internet Exchange Aut
21491 14 1 3 UTL On-line is RF broadband I
15808 13 1 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 753 747 Covad Communications
721 1040 735 DLA Systems Automation Center
4134 862 698 Data Communications Bureau
4323 811 591 Time Warner Telecom
9583 566 526 Satyam Infoway Ltd.,
6197 815 463 BellSouth Network Solutions,
27364 443 424 Armstrong Cable Services
5668 417 399 Century Telephone
7843 478 390 Adelphia Corp.
22773 407 386 Cox Communications, Inc. Atla
22909 416 356 Comcast Cable Corporation
6467 381 350 E.Spire Communications, Inc.
6478 442 347 AT&T Worldnet Services
17676 391 334 XTAGE CORPORATION
4755 401 327 Videsh Sanchar Nigam Ltd. Aut
9929 346 312 China Netcom Corp.
1239 930 311 Sprint
4355 392 293 EarthLink, Inc.
4766 548 278 Korea Internet Exchange for "
13609 312 278 Choice One Communications Inc
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
64512 PRIVATE 199.213.17.0/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.213.17.128/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.216.97.0/28 15296 Netera Alliance Inc.
65529 PRIVATE 216.21.199.0/24 14697 VDot.Net
33507 UNALLOCATED 216.94.118.0/24 701 UUNET Technologies,
65529 PRIVATE 216.152.237.0/24 14697 VDot.Net
65000 PRIVATE 217.68.56.0/22 29263 HAAGnet, municipalit
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
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T WorldNet Services
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 721 DLA Systems Automation Center
192.172.11.0/24 721 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 /8:19 /9:3 /10:7 /11:15 /12:60
/13:139 /14:314 /15:559 /16:8182 /17:2294 /18:3995
/19:9945 /20:10519 /21:8100 /22:11192 /23:12791 /24:82894
/25:263 /26:240 /27:124 /28:59 /29:40 /30:130
/31:0 /32:47
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 738 753 Covad Communications
6197 663 815 BellSouth Network Solutions,
2386 614 850 AT&T Data Communications Serv
7018 583 1427 AT&T WorldNet Services
27364 428 443 Armstrong Cable Services
9583 397 566 Satyam Infoway Ltd.,
702 386 631 UUNET - Commercial IP service
1239 373 930 Sprint
4766 368 548 Korea Internet Exchange for "
5668 360 417 Century Telephone
6198 325 444 BellSouth Network Solutions,
6467 289 381 E.Spire Communications, Inc.
6517 281 304 Yipes Communications, Inc.
9929 276 346 China Netcom Corp.
20115 271 591 Charter Communications
13609 270 312 Choice One Communications Inc
21502 269 272 NUMERICABLE is a cabled netwo
4323 262 811 Time Warner Telecom
11456 256 301 Carolina Online, Inc.
3320 249 304 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1435 13:1 15:5 16:2
17:3 18:4 20:5 24:735 32:67 33:3
38:87 40:55 44:3 47:2 52:3 55:1
56:3 57:23 60:8 61:655 62:514 63:1844
64:2495 65:2075 66:2497 67:465 68:521 69:807
70:44 72:12 80:518 81:587 82:363 83:207
84:66 85:3 128:119 129:164 130:89 131:192
132:29 134:189 135:30 136:187 137:77 138:189
139:36 140:225 141:108 142:134 143:120 144:164
145:40 146:282 147:96 148:263 149:112 150:93
151:63 152:121 153:69 154:2 155:132 156:62
157:70 158:136 159:162 160:63 161:59 162:378
163:85 164:219 165:167 166:122 167:221 168:355
169:125 170:313 171:9 192:5670 193:2971 194:2196
195:1549 196:583 198:3890 199:3304 200:3904 201:27
202:4935 203:5798 204:3574 205:2085 206:2288 207:2590
208:2099 209:3072 210:1532 211:649 212:1173 213:1238
214:229 215:31 216:3769 217:1067 218:181 219:89
220:290 221:77 222:31
End of report
