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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 08 Dec, 2004
Analysis Summary
----------------
BGP routing table entries examined: 152022
Prefixes after maximum aggregation: 89478
Unique aggregates announced to Internet: 72136
Total ASes present in the Internet Routing Table: 18591
Origin-only ASes present in the Internet Routing Table: 16137
Origin ASes announcing only one prefix: 7584
Transit ASes present in the Internet Routing Table: 2454
Transit-only ASes present in the Internet Routing Table: 74
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: 7
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1359656804
Equivalent to 81 /8s, 10 /16s and 183 /24s
Percentage of available address space announced: 36.7
Percentage of allocated address space announced: 59.3
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 70222
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 29610
Total APNIC prefixes after maximum aggregation: 14598
Prefixes being announced from the APNIC address blocks: 27672
Unique aggregates announced from the APNIC address blocks: 14422
APNIC Region origin ASes present in the Internet Routing Table: 2170
APNIC Region origin ASes announcing only one prefix: 654
APNIC Region transit ASes present in the Internet Routing Table: 329
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 168563712
Equivalent to 10 /8s, 12 /16s and 20 /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: 85957
Total ARIN prefixes after maximum aggregation: 52042
Prefixes being announced from the ARIN address blocks: 65844
Unique aggregates announced from the ARIN address blocks: 23656
ARIN Region origin ASes present in the Internet Routing Table: 9752
ARIN Region origin ASes announcing only one prefix: 3524
ARIN Region transit ASes present in the Internet Routing Table: 966
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 236500224
Equivalent to 14 /8s, 24 /16s and 181 /24s
Percentage of available ARIN address space announced: 70.5
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: 28463
Total RIPE prefixes after maximum aggregation: 19745
Prefixes being announced from the RIPE address blocks: 25335
Unique aggregates announced from the RIPE address blocks: 15930
RIPE Region origin ASes present in the Internet Routing Table: 6097
RIPE Region origin ASes announcing only one prefix: 3267
RIPE Region transit ASes present in the Internet Routing Table: 1033
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 182601728
Equivalent to 10 /8s, 226 /16s and 72 /24s
Percentage of available RIPE address space announced: 64.0
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: 6742
Total LACNIC prefixes after maximum aggregation: 2397
Prefixes being announced from the LACNIC address blocks: 6571
Unique aggregates announced from the LACNIC address blocks: 4027
LACNIC Region origin ASes present in the Internet Routing Table: 406
LACNIC Region origin ASes announcing only one prefix: 118
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: 16878592
Equivalent to 1 /8s, 1 /16s and 140 /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: 1243
Total AfriNIC prefixes after maximum aggregation: 696
Prefixes being announced from the AfriNIC address blocks: 840
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: 2080768
Equivalent to 0 /8s, 31 /16s and 192 /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 863 4413 165 Data Communications Bureau
1221 789 1182 569 Telstra Pty Ltd
9583 566 47 40 Satyam Infoway Ltd.,
4766 548 3409 270 Korea Internet Exchange for "
4755 406 142 77 Videsh Sanchar Nigam Ltd. Aut
17676 390 5852 60 XTAGE CORPORATION
9443 356 69 80 Primus Telecommunications
2907 354 1857 328 SINET Japan
9929 349 163 36 China Netcom Corp.
703 322 350 247 UUNET
17557 319 23 155 Pakistan Telecom
2764 285 272 232 connect.com.au pty ltd
7474 273 268 203 Optus Communications Pty Ltd
9800 232 381 71 CHINA UNICOM
4802 230 28 139 Wantree Development
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 215 62 10 PT TELEKOMUNIKASI INDONESIA
4780 214 225 26 Digital United Inc.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1424 6616 984 AT&T WorldNet Services
701 1063 8383 877 UUNET Technologies, Inc.
721 1039 21084 304 DLA Systems Automation Center
1239 931 2881 620 Sprint
2386 849 529 615 AT&T Data Communications Serv
6197 819 384 354 BellSouth Network Solutions,
4323 810 670 220 Time Warner Telecom
18566 754 208 6 Covad Communications
209 649 3426 508 Qwest
3356 644 10962 460 Level 3 Communications, LLC
20115 592 462 317 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
6478 450 802 97 AT&T Worldnet Services
6198 448 382 204 BellSouth Network Solutions,
27364 443 36 19 Armstrong Cable Services
5668 418 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 164 20 7 Bulgarian Telecommunication C
719 159 322 104 LANLINK autonomous system
6746 159 46 128 Dynamic Network Technologies,
3269 155 1329 69 TELECOM ITALIA
3300 154 165 78 AUCS Communications Services
25186 144 154 101 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 169 14 20 Keytech SA
7303 144 66 26 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
14420 84 6 41 ANDINATEL S.A.
13999 83 52 9 Mega Cable S.A. de C.V.
10481 82 32 7 Prima S.A.
4270 79 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 268 636 226 The Internet Solution
5536 112 16 4 Internet Egypt Network
2018 102 297 98 Tertiary Education Network
2905 75 271 68 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 32 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 4 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 754 748 Covad Communications
721 1039 735 DLA Systems Automation Center
4134 863 698 Data Communications Bureau
4323 810 590 Time Warner Telecom
9583 566 526 Satyam Infoway Ltd.,
6197 819 465 BellSouth Network Solutions,
27364 443 424 Armstrong Cable Services
5668 418 400 Century Telephone
7843 478 390 Adelphia Corp.
22773 408 387 Cox Communications, Inc. Atla
22909 416 356 Comcast Cable Corporation
6478 450 353 AT&T Worldnet Services
6467 380 349 E.Spire Communications, Inc.
17676 390 330 XTAGE CORPORATION
4755 406 329 Videsh Sanchar Nigam Ltd. Aut
9929 349 313 China Netcom Corp.
1239 931 311 Sprint
4355 392 293 EarthLink, Inc.
13609 316 282 Choice One Communications Inc
4766 548 278 Korea Internet Exchange for "
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
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 /8:20 /9:3 /10:7 /11:15 /12:60
/13:139 /14:314 /15:559 /16:8179 /17:2296 /18:3999
/19:9955 /20:10530 /21:8103 /22:11211 /23:12815 /24:82913
/25:263 /26:237 /27:124 /28:59 /29:40 /30:132
/31:0 /32:49
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 739 754 Covad Communications
6197 665 819 BellSouth Network Solutions,
2386 615 849 AT&T Data Communications Serv
7018 581 1424 AT&T WorldNet Services
27364 428 443 Armstrong Cable Services
9583 397 566 Satyam Infoway Ltd.,
702 386 631 UUNET - Commercial IP service
1239 374 931 Sprint
4766 368 548 Korea Internet Exchange for "
5668 361 418 Century Telephone
6198 327 448 BellSouth Network Solutions,
6467 289 380 E.Spire Communications, Inc.
6517 281 304 Yipes Communications, Inc.
9929 279 349 China Netcom Corp.
13609 274 316 Choice One Communications Inc
20115 271 592 Charter Communications
21502 269 272 NUMERICABLE is a cabled netwo
4323 261 810 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 61:660 62:515 63:1845
64:2488 65:2081 66:2498 67:467 68:522 69:814
70:44 72:13 80:517 81:589 82:366 83:211
84:67 85:4 128:120 129:164 130:83 131:193
132:28 134:189 135:30 136:187 137:70 138:140
139:35 140:225 141:108 142:134 143:119 144:165
145:40 146:282 147:96 148:262 149:112 150:93
151:63 152:121 153:69 154:2 155:132 156:62
157:71 158:136 159:162 160:62 161:60 162:379
163:86 164:218 165:168 166:123 167:222 168:358
169:125 170:313 171:9 192:5668 193:2985 194:2182
195:1534 196:583 198:3900 199:3301 200:3914 201:28
202:4938 203:5829 204:3573 205:2080 206:2284 207:2588
208:2102 209:3071 210:1538 211:674 212:1173 213:1228
214:229 215:31 216:3758 217:1066 218:181 219:93
220:297 221:77 222:32
End of report
