Weekly Routing Table Report
Routing Table Analysis
cscora at apnic.net
Fri Jan 14 18:06:27 UTC 2005
This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.
Daily listings are sent to bgp-stats at lists.apnic.net
If you have any comments please contact Philip Smith <pfs at cisco.com>.
Routing Table Report 04:00 +10GMT Sat 15 Jan, 2005
Analysis Summary
----------------
BGP routing table entries examined: 153359
Prefixes after maximum aggregation: 90003
Unique aggregates announced to Internet: 73829
Total ASes present in the Internet Routing Table: 18787
Origin-only ASes present in the Internet Routing Table: 16317
Origin ASes announcing only one prefix: 7641
Transit ASes present in the Internet Routing Table: 2470
Transit-only ASes present in the Internet Routing Table: 80
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 19
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: 16
Number of addresses announced to Internet: 1365929640
Equivalent to 81 /8s, 106 /16s and 110 /24s
Percentage of available address space announced: 36.9
Percentage of allocated address space announced: 59.6
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 71169
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 30377
Total APNIC prefixes after maximum aggregation: 14775
Prefixes being announced from the APNIC address blocks: 28417
Unique aggregates announced from the APNIC address blocks: 14569
APNIC Region origin ASes present in the Internet Routing Table: 2192
APNIC Region origin ASes announcing only one prefix: 646
APNIC Region transit ASes present in the Internet Routing Table: 330
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 171452544
Equivalent to 10 /8s, 56 /16s and 40 /24s
Percentage of available APNIC address space announced: 78.2
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: 85730
Total ARIN prefixes after maximum aggregation: 52065
Prefixes being announced from the ARIN address blocks: 65406
Unique aggregates announced from the ARIN address blocks: 23973
ARIN Region origin ASes present in the Internet Routing Table: 9797
ARIN Region origin ASes announcing only one prefix: 3533
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: 238498048
Equivalent to 14 /8s, 55 /16s and 49 /24s
Percentage of available ARIN address space announced: 71.1
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: 29121
Total RIPE prefixes after maximum aggregation: 20079
Prefixes being announced from the RIPE address blocks: 26017
Unique aggregates announced from the RIPE address blocks: 17055
RIPE Region origin ASes present in the Internet Routing Table: 6214
RIPE Region origin ASes announcing only one prefix: 3319
RIPE Region transit ASes present in the Internet Routing Table: 1048
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 184494528
Equivalent to 10 /8s, 255 /16s and 41 /24s
Percentage of available RIPE address space announced: 64.7
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: 6803
Total LACNIC prefixes after maximum aggregation: 2382
Prefixes being announced from the LACNIC address blocks: 6667
Unique aggregates announced from the LACNIC address blocks: 4004
LACNIC Region origin ASes present in the Internet Routing Table: 411
LACNIC Region origin ASes announcing only one prefix: 119
LACNIC Region transit ASes present in the Internet Routing Table: 78
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 17255168
Equivalent to 1 /8s, 7 /16s and 75 /24s
Percentage of available LACNIC address space announced: 51.4
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1320
Total AfriNIC prefixes after maximum aggregation: 702
Prefixes being announced from the AfriNIC address blocks: 868
Unique aggregates announced from the AfriNIC address blocks: 685
AfriNIC Region origin ASes present in the Internet Routing Table: 96
AfriNIC Region origin ASes announcing only one prefix: 24
AfriNIC Region transit ASes present in the Internet Routing Table: 13
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2103552
Equivalent to 0 /8s, 32 /16s and 25 /24s
Percentage of available AfriNIC address space announced: 12.5
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 878 4611 169 Data Communications Bureau
1221 782 1183 559 Telstra Pty Ltd
4766 563 3413 275 Korea Internet Exchange for "
9583 559 48 11 Satyam Infoway Ltd.,
4755 436 176 79 Videsh Sanchar Nigam Ltd. Aut
17676 391 5868 59 XTAGE CORPORATION
9443 362 71 77 Primus Telecommunications
2907 354 1856 327 SINET Japan
9929 348 164 35 China Netcom Corp.
703 325 344 255 UUNET
17557 308 22 151 Pakistan Telecom
10036 294 27 270 C&M Communication Co. Ltd.
2764 281 255 224 connect.com.au pty ltd
7474 273 268 203 Optus Communications Pty Ltd
9800 238 383 76 CHINA UNICOM
7545 236 86 67 TPG Internet Pty Ltd
9498 231 81 53 BHARTI BT INTERNET LTD.
4802 230 28 139 Wantree Development
7563 226 48 158 Korea Internet Infrastructure
17974 223 62 11 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1427 6603 967 AT&T WorldNet Services
721 1094 21722 304 DLA Systems Automation Center
701 1056 8316 908 UUNET Technologies, Inc.
1239 926 2880 622 Sprint
2386 850 508 602 AT&T Data Communications Serv
4323 827 671 227 Time Warner Telecom
6197 827 373 371 BellSouth Network Solutions,
18566 765 208 6 Covad Communications
209 669 3437 506 Qwest
3356 607 10887 446 Level 3 Communications, LLC
20115 568 471 304 Charter Communications
3561 547 2370 415 Cable & Wireless USA
852 527 1126 401 Telus Advanced Communications
6478 480 818 100 AT&T Worldnet Services
7132 452 8379 381 SBC Internet Services
6198 450 388 200 BellSouth Network Solutions,
27364 442 44 19 Armstrong Cable Services
5668 428 87 18 Century Telephone
22909 422 914 64 Comcast Cable Corporation
22773 421 973 24 Cox Communications, Inc. Atla
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 623 2023 514 UUNET - Commercial IP service
3320 292 2992 231 Deutsche Telekom AG
3301 288 1112 276 TeliaNet Sweden
8220 280 466 268 COLT Internet - International
21502 274 40 3 NUMERICABLE is a cabled netwo
680 254 2041 240 DFN-IP service G-WiN
3246 226 487 221 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 205 708 171 SWIPnet Swedish IP Network
8708 204 119 188 Romania Data Systems S.A.
5515 191 842 138 Sonera Solution Autonomous Sy
3215 180 998 76 France Telecom Transpac
786 176 1794 176 The JANET IP Service
6746 171 47 136 Dynamic Network Technologies,
8866 164 18 22 Bulgarian Telecommunication C
3269 159 1360 70 TELECOM ITALIA
719 158 322 104 LANLINK autonomous system
3300 154 165 78 AUCS Communications Services
25186 145 138 101 France Telecom Transpac's Tra
5400 137 217 121 BT Ignite European Backbone
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 354 140 68 ImpSat
8151 332 485 143 UniNet S.A. de C.V.
16814 234 14 6 NSS, S.A.
11172 214 99 54 Servicios Alestra S.A de C.V
6147 188 102 20 Telefonica Del Peru
11664 159 19 24 Keytech SA
7303 148 67 21 Telecom Argentina Stet-France
6505 138 90 94 Global One Communicaoes Ltda
6503 124 147 83 AVANTEL, S.A.
14117 114 7 5 Telefonica del Sur S.A.
11992 106 9 31 Integrated Systems
11556 97 48 3 Cable-Wireless Panama
13999 88 52 9 Mega Cable S.A. de C.V.
11311 86 8 22 Sinectis S.A.
14420 85 6 40 ANDINATEL S.A.
6535 84 7 25 Chilesat Servicios Empresari
10481 82 32 7 Prima S.A.
4270 80 18 9 Red de Interconexion Universi
5639 79 8 8 Telecommunications Services o
15311 78 25 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 113 16 4 Internet Egypt Network
2018 102 297 98 Tertiary Education Network
2905 77 272 70 The Internetworking Company o
20928 77 16 2 Noor Advanced Technologies AS
24835 54 34 7 RAYA Telecom - Egypt
8452 47 20 5 TEDATA
6713 34 38 9 Itissalat Al-MAGHRIB
9129 33 3 2 UUNET Kenya
5713 27 141 24 Telkom SA Ltd
12455 24 7 4 Jambonet Autonomous system
8524 23 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
21280 18 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 15 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
721 1094 790 DLA Systems Automation Center
18566 765 759 Covad Communications
4134 878 709 Data Communications Bureau
4323 827 600 Time Warner Telecom
9583 559 548 Satyam Infoway Ltd.,
6197 827 456 BellSouth Network Solutions,
27364 442 423 Armstrong Cable Services
5668 428 410 Century Telephone
22773 421 397 Cox Communications, Inc. Atla
6478 480 380 AT&T Worldnet Services
22909 422 358 Comcast Cable Corporation
4755 436 357 Videsh Sanchar Nigam Ltd. Aut
6467 372 341 E.Spire Communications, Inc.
17676 391 332 XTAGE CORPORATION
9929 348 313 China Netcom Corp.
1239 926 304 Sprint
13609 334 299 Choice One Communications Inc
4766 563 288 Korea Internet Exchange for "
6140 354 286 ImpSat
9443 362 285 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
26422 UNALLOCATED 196.46.184.0/22 3741 The Internet Solutio
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.
65002 PRIVATE 208.179.184.0/24 11509 The Pajo Group
65529 PRIVATE 216.21.199.0/24 14697 VDot.Net
65529 PRIVATE 216.152.237.0/24 14697 VDot.Net
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
192.200.100.0/24 7018 AT&T WorldNet Services
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 /12:59
/13:142 /14:315 /15:570 /16:8242 /17:2358 /18:4029
/19:9964 /20:10470 /21:8206 /22:11447 /23:12857 /24:83778
/25:258 /26:234 /27:122 /28:63 /29:35 /30:123
/31:0 /32:43
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 750 765 Covad Communications
6197 673 827 BellSouth Network Solutions,
2386 626 850 AT&T Data Communications Serv
7018 590 1427 AT&T WorldNet Services
27364 427 442 Armstrong Cable Services
9583 386 559 Satyam Infoway Ltd.,
4766 381 563 Korea Internet Exchange for "
702 380 623 UUNET - Commercial IP service
5668 371 428 Century Telephone
1239 367 926 Sprint
6198 327 450 BellSouth Network Solutions,
10036 294 294 C&M Communication Co. Ltd.
13609 291 334 Choice One Communications Inc
6517 288 312 Yipes Communications, Inc.
6467 283 372 E.Spire Communications, Inc.
4323 277 827 Time Warner Telecom
9929 277 348 China Netcom Corp.
21502 271 274 NUMERICABLE is a cabled netwo
701 263 1056 UUNET Technologies, Inc.
11456 261 306 Carolina Online, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1476 13:1 15:6 16:2
17:3 18:4 20:4 24:727 32:68 33:3
38:88 40:55 44:3 47:2 52:3 55:2
56:3 57:21 59:2 60:12 61:652 62:518
63:1848 64:2539 65:2078 66:2503 67:480 68:493
69:858 70:52 71:1 72:29 80:541 81:660
82:397 83:228 84:86 85:74 128:122 129:167
130:115 131:193 132:35 134:145 135:30 136:188
137:79 138:163 139:39 140:199 141:102 142:133
143:124 144:169 145:45 146:282 147:88 148:264
149:128 150:93 151:62 152:115 153:71 154:2
155:134 156:70 157:74 158:149 159:162 160:64
161:60 162:408 163:82 164:213 165:157 166:127
167:223 168:371 169:131 170:323 171:8 192:5659
193:3050 194:2231 195:1556 196:601 198:3861 199:3264
200:3926 201:43 202:5109 203:5900 204:3557 205:2084
206:2272 207:2617 208:2105 209:3044 210:1528 211:743
212:1148 213:1259 214:235 215:31 216:3726 217:1062
218:179 219:86 220:322 221:78 222:57
End of report
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