Routing Table Report 04:00 +10GMT Thu 24 Feb, 2005
Analysis Summary
----------------
BGP routing table entries examined: 156372
Prefixes after maximum aggregation: 91552
Unique aggregates announced to Internet: 75663
Total ASes present in the Internet Routing Table: 19022
Origin-only ASes present in the Internet Routing Table: 16528
Origin ASes announcing only one prefix: 7717
Transit ASes present in the Internet Routing Table: 2494
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: 23
Prefixes from unregistered ASNs in the Routing Table: 19
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1378738768
Equivalent to 82 /8s, 45 /16s and 226 /24s
Percentage of available address space announced: 37.2
Percentage of allocated address space announced: 58.8
Percentage of available address space allocated: 63.2
Total number of prefixes smaller than registry allocations: 72860
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 31113
Total APNIC prefixes after maximum aggregation: 15110
Prefixes being announced from the APNIC address blocks: 29156
Unique aggregates announced from the APNIC address blocks: 15241
APNIC Region origin ASes present in the Internet Routing Table: 2216
APNIC Region origin ASes announcing only one prefix: 649
APNIC Region transit ASes present in the Internet Routing Table: 324
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 174547840
Equivalent to 10 /8s, 103 /16s and 99 /24s
Percentage of available APNIC address space announced: 64.8
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 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: 87329
Total ARIN prefixes after maximum aggregation: 52879
Prefixes being announced from the ARIN address blocks: 66630
Unique aggregates announced from the ARIN address blocks: 24337
ARIN Region origin ASes present in the Internet Routing Table: 9887
ARIN Region origin ASes announcing only one prefix: 3577
ARIN Region transit ASes present in the Internet Routing Table: 956
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 239580416
Equivalent to 14 /8s, 71 /16s and 181 /24s
Percentage of available ARIN address space announced: 71.4
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, 29696-30719, 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: 29702
Total RIPE prefixes after maximum aggregation: 20446
Prefixes being announced from the RIPE address blocks: 26583
Unique aggregates announced from the RIPE address blocks: 17636
RIPE Region origin ASes present in the Internet Routing Table: 6331
RIPE Region origin ASes announcing only one prefix: 3341
RIPE Region transit ASes present in the Internet Routing Table: 1082
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 192930880
Equivalent to 11 /8s, 127 /16s and 228 /24s
Percentage of available RIPE address space announced: 67.6
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: 6855
Total LACNIC prefixes after maximum aggregation: 2406
Prefixes being announced from the LACNIC address blocks: 6779
Unique aggregates announced from the LACNIC address blocks: 4014
LACNIC Region origin ASes present in the Internet Routing Table: 417
LACNIC Region origin ASes announcing only one prefix: 125
LACNIC Region transit ASes present in the Internet Routing Table: 81
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 17574912
Equivalent to 1 /8s, 12 /16s and 44 /24s
Percentage of available LACNIC address space announced: 52.4
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1354
Total AfriNIC prefixes after maximum aggregation: 711
Prefixes being announced from the AfriNIC address blocks: 906
Unique aggregates announced from the AfriNIC address blocks: 716
AfriNIC Region origin ASes present in the Internet Routing Table: 97
AfriNIC Region origin ASes announcing only one prefix: 25
AfriNIC Region transit ASes present in the Internet Routing Table: 14
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2177280
Equivalent to 0 /8s, 33 /16s and 57 /24s
Percentage of available AfriNIC address space announced: 13.0
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 886 4712 174 Data Communications Bureau
1221 787 1185 559 Telstra Pty Ltd
9583 598 49 16 Satyam Infoway Ltd.,
4766 593 3416 284 Korea Internet Exchange for "
4755 466 241 98 Videsh Sanchar Nigam Ltd. Aut
7545 458 73 165 TPG Internet Pty Ltd
17676 399 5996 67 XTAGE CORPORATION
9443 374 77 79 Primus Telecommunications
9929 353 165 37 China Netcom Corp.
2907 348 1839 322 SINET Japan
17557 326 24 149 Pakistan Telecom
10036 296 27 269 C&M Communication Co. Ltd.
7474 285 283 207 Optus Communications Pty Ltd
703 274 355 215 UUNET
2764 258 238 206 connect.com.au pty ltd
9498 238 81 53 BHARTI BT INTERNET LTD.
4808 237 170 129 CHINANET core WAN North
9800 237 383 75 CHINA UNICOM
17974 232 63 12 PT TELEKOMUNIKASI INDONESIA
4802 231 28 140 Wantree Development
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1455 6601 967 AT&T WorldNet Services
721 1142 21835 319 DLA Systems Automation Center
701 1033 8309 880 UUNET Technologies, Inc.
4323 1029 668 219 Time Warner Telecom
1239 951 2874 656 Sprint
6197 865 379 405 BellSouth Network Solutions,
2386 823 496 611 AT&T Data Communications Serv
18566 766 208 6 Covad Communications
209 649 3466 500 Qwest
174 608 5481 522 PSINet Inc.
3356 591 10867 442 Level 3 Communications, LLC
20115 582 485 303 Charter Communications
3561 563 2374 419 Cable & Wireless USA
852 524 1126 399 Telus Advanced Communications
3602 498 120 93 Sprint Canada, Inc.
6478 493 821 105 AT&T Worldnet Services
22773 473 1090 24 Cox Communications, Inc. Atla
6198 466 567 189 BellSouth Network Solutions,
27364 465 43 18 Armstrong Cable Services
5668 450 91 19 Century Telephone
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 605 2022 502 UUNET - Commercial IP service
3320 295 2992 229 Deutsche Telekom AG
3301 289 1112 277 TeliaNet Sweden
8220 277 466 271 COLT Internet - International
680 253 2041 239 DFN-IP service G-WiN
3246 228 475 222 Song Networks
8708 218 120 196 Romania Data Systems S.A.
13083 217 51 8 Mannesmann Datenverarbeitung
1257 204 708 170 SWIPnet Swedish IP Network
3215 202 1025 80 France Telecom Transpac
5515 187 842 135 Sonera Solution Autonomous Sy
6746 178 47 142 Dynamic Network Technologies,
786 176 1794 176 The JANET IP Service
8866 173 19 21 Bulgarian Telecommunication C
3300 164 185 84 AUCS Communications Services
3269 163 1424 72 TELECOM ITALIA
719 161 322 103 LANLINK autonomous system
25186 141 138 99 France Telecom Transpac's Tra
5400 139 234 123 BT Ignite European Backbone
9121 131 227 19 TTnet Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 361 140 70 ImpSat
8151 335 501 142 UniNet S.A. de C.V.
16814 233 14 6 NSS, S.A.
11172 221 101 55 Servicios Alestra S.A de C.V
6147 189 102 20 Telefonica Del Peru
11664 151 19 24 Keytech SA
7303 146 66 30 Telecom Argentina Stet-France
6505 135 90 91 Global One Communicaoes Ltda
14117 119 7 5 Telefonica del Sur S.A.
6503 117 146 80 AVANTEL, S.A.
11992 107 9 31 Integrated Systems
11556 97 48 3 Cable-Wireless Panama
13999 93 52 9 Mega Cable S.A. de C.V.
14420 87 6 42 ANDINATEL S.A.
6535 86 7 23 Chilesat Servicios Empresari
11311 86 8 22 Sinectis S.A.
5639 82 8 8 Telecommunications Services o
10481 81 32 7 Prima S.A.
4270 79 18 9 Red de Interconexion Universi
15311 78 25 37 Telefonica Empresas
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 268 635 225 The Internet Solution
5536 114 15 18 Internet Egypt Network
2018 90 295 87 Tertiary Education Network
20928 85 16 2 Noor Advanced Technologies AS
2905 84 267 76 The Internetworking Company o
24835 53 34 6 RAYA Telecom - Egypt
8452 40 20 5 TEDATA
6713 35 54 9 Itissalat Al-MAGHRIB
11845 35 9 11 Data Pro Business Online
9129 30 3 2 UUNET Kenya
12455 30 6 7 Jambonet Autonomous system
5713 27 141 24 Telkom SA Ltd
8524 23 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 19 1 11 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
8346 17 10 11 SONATEL-AS Autonomous System
21280 17 2 3 Swift Global Kenya Ltd.Is an
21491 16 1 3 UTL On-line is RF broadband I
15706 15 4 2 Sudatel Internet Exchange Aut
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
721 1142 823 DLA Systems Automation Center
4323 1029 810 Time Warner Telecom
18566 766 760 Covad Communications
4134 886 712 Data Communications Bureau
9583 598 582 Satyam Infoway Ltd.,
6197 865 460 BellSouth Network Solutions,
22773 473 449 Cox Communications, Inc. Atla
27364 465 447 Armstrong Cable Services
5668 450 431 Century Telephone
3602 498 405 Sprint Canada, Inc.
6478 493 388 AT&T Worldnet Services
4755 466 368 Videsh Sanchar Nigam Ltd. Aut
17676 399 332 XTAGE CORPORATION
6467 361 328 E.Spire Communications, Inc.
9929 353 316 China Netcom Corp.
4766 593 309 Korea Internet Exchange for "
1239 951 295 Sprint
9443 374 295 Primus Telecommunications
7545 458 293 TPG Internet Pty Ltd
6140 361 291 ImpSat
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
25695 UNALLOCATED 64.57.112.0/20 5713 Telkom SA Ltd
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
40439 UNALLOCATED 66.194.101.0/24 30439 Memphis Daily News
65503 PRIVATE 193.125.183.0/24 3217 SIMBIRSK
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.
64512 PRIVATE 199.216.148.0/28 15296 Netera Alliance Inc.
65004 PRIVATE 200.0.113.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.0.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.1.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.2.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.3.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.4.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.5.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.6.0/24 28477 Universidad Autonoma
65535 PRIVATE 204.10.155.0/24 33205 KMC Telecom Solution
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
192.43.230.0/24 7575 Australian Academic and Rease
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
192.135.50.0/24 7018 AT&T WorldNet Services
192.172.0.0/19 721 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 /10:8 /11:14 /12:62
/13:148 /14:305 /15:563 /16:8285 /17:2417 /18:4124
/19:10061 /20:10703 /21:8560 /22:11823 /23:13054 /24:85425
/25:265 /26:240 /27:97 /28:49 /29:24 /30:80
/31:0 /32:43
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 751 766 Covad Communications
6197 708 865 BellSouth Network Solutions,
7018 631 1455 AT&T WorldNet Services
2386 587 823 AT&T Data Communications Serv
4323 480 1029 Time Warner Telecom
27364 450 465 Armstrong Cable Services
9583 420 598 Satyam Infoway Ltd.,
4766 404 593 Korea Internet Exchange for "
5668 381 450 Century Telephone
1239 370 951 Sprint
702 366 605 UUNET - Commercial IP service
6198 333 466 BellSouth Network Solutions,
10036 296 296 C&M Communication Co. Ltd.
6517 287 309 Yipes Communications, Inc.
9929 278 353 China Netcom Corp.
6467 273 361 E.Spire Communications, Inc.
11456 263 310 Carolina Online, Inc.
13609 256 305 Choice One Communications Inc
701 245 1033 UUNET Technologies, Inc.
25844 245 245 Skadden, Arps, Slate, Meagher
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:9 12:1488 13:1 15:9 16:2
17:3 18:4 20:5 24:737 32:65 33:4
38:99 40:55 44:3 47:2 52:3 55:2
56:3 57:23 59:2 60:20 61:702 62:519
63:1869 64:2578 65:2052 66:2732 67:517 68:504
69:931 70:63 71:9 72:69 80:545 81:515
82:357 83:266 84:133 85:119 128:139 129:163
130:96 131:278 132:37 133:1 134:142 135:30
136:213 137:63 138:160 139:53 140:196 141:101
142:140 143:128 144:167 145:44 146:283 147:100
148:266 149:162 150:95 151:63 152:110 153:81
154:3 155:142 156:63 157:81 158:152 159:164
160:68 161:59 162:420 163:82 164:216 165:158
166:130 167:226 168:402 169:133 170:314 171:9
192:5677 193:3076 194:2258 195:1589 196:634 198:3871
199:3278 200:3976 201:49 202:5186 203:6014 204:3660
205:2030 206:2326 207:2723 208:2088 209:3188 210:1571
211:788 212:1171 213:1269 214:241 215:31 216:3650
217:1097 218:189 219:114 220:365 221:85 222:75
End of report