Routing Table Report 04:00 +10GMT Wed 24 Aug, 2005
Analysis Summary
----------------
BGP routing table entries examined: 168529
Prefixes after maximum aggregation: 96938
Unique aggregates announced to Internet: 81767
Total ASes present in the Internet Routing Table: 20357
Origin-only ASes present in the Internet Routing Table: 17713
Origin ASes announcing only one prefix: 8387
Transit ASes present in the Internet Routing Table: 2644
Transit-only ASes present in the Internet Routing Table: 73
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 26
Prefixes from unregistered ASNs in the Routing Table: 15
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1410077601
Equivalent to 84 /8s, 12 /16s and 19 /24s
Percentage of available address space announced: 38.0
Percentage of allocated address space announced: 57.3
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 79953
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 35044
Total APNIC prefixes after maximum aggregation: 15803
Prefixes being announced from the APNIC address blocks: 32894
Unique aggregates announced from the APNIC address blocks: 16570
APNIC Region origin ASes present in the Internet Routing Table: 2342
APNIC Region origin ASes announcing only one prefix: 696
APNIC Region transit ASes present in the Internet Routing Table: 353
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 195183232
Equivalent to 11 /8s, 162 /16s and 66 /24s
Percentage of available APNIC address space announced: 72.4
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, 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: 90120
Total ARIN prefixes after maximum aggregation: 54939
Prefixes being announced from the ARIN address blocks: 70418
Unique aggregates announced from the ARIN address blocks: 26100
ARIN Region origin ASes present in the Internet Routing Table: 10172
ARIN Region origin ASes announcing only one prefix: 3747
ARIN Region transit ASes present in the Internet Routing Table: 955
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 20
Number of ARIN addresses announced to Internet: 260643745
Equivalent to 15 /8s, 137 /16s and 27 /24s
Percentage of available ARIN address space announced: 64.7
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, 64/6, 68/7, 70/6, 74/7, 76/8,
198/7, 204/6, 208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 32442
Total RIPE prefixes after maximum aggregation: 22230
Prefixes being announced from the RIPE address blocks: 29454
Unique aggregates announced from the RIPE address blocks: 19853
RIPE Region origin ASes present in the Internet Routing Table: 7010
RIPE Region origin ASes announcing only one prefix: 3707
RIPE Region transit ASes present in the Internet Routing Table: 1168
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 215279488
Equivalent to 12 /8s, 212 /16s and 231 /24s
Percentage of available RIPE address space announced: 64.2
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
RIPE Address Blocks 62/8, 80/5, 88/6, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 9247
Total LACNIC prefixes after maximum aggregation: 3178
Prefixes being announced from the LACNIC address blocks: 7606
Unique aggregates announced from the LACNIC address blocks: 4411
LACNIC Region origin ASes present in the Internet Routing Table: 633
LACNIC Region origin ASes announcing only one prefix: 197
LACNIC Region transit ASes present in the Internet Routing Table: 116
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 23
Number of LACNIC addresses announced to Internet: 21702912
Equivalent to 1 /8s, 75 /16s and 41 /24s
Percentage of available LACNIC address space announced: 32.3
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: 1656
Total AfriNIC prefixes after maximum aggregation: 788
Prefixes being announced from the AfriNIC address blocks: 1015
Unique aggregates announced from the AfriNIC address blocks: 784
AfriNIC Region origin ASes present in the Internet Routing Table: 133
AfriNIC Region origin ASes announcing only one prefix: 40
AfriNIC Region transit ASes present in the Internet Routing Table: 17
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2631424
Equivalent to 0 /8s, 40 /16s and 39 /24s
Percentage of available AfriNIC address space announced: 7.8
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 957 5524 194 CHINANET-BACKBONE
1221 758 1327 527 Telstra Pty Ltd
9583 756 77 14 Sify Limited
4755 702 259 65 Videsh Sanchar Nigam Ltd. Aut
4766 599 3926 283 Korea Telecom (KIX)
7545 519 108 74 TPG Internet Pty Ltd
17676 465 6739 99 Softbank BB Corp.
9443 382 82 77 Primus Telecommunications
9498 341 83 61 BHARTI BT INTERNET LTD.
9929 338 224 46 China Netcom Corp.
2907 337 1789 314 SINET Japan
17557 330 24 153 Pakistan Telecom
7474 315 257 218 SingTel Optus Pty Ltd
18302 301 109 158 SK Global co., Ltd
17488 300 18 18 Hathway IP Over Cable Interne
4802 296 53 157 Wantree Development
9837 277 80 179 Powertel Ltd
703 256 262 207 UUNET - Commercial IP service
9800 250 390 64 CHINA UNICOM
17974 244 46 12 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1517 6377 987 AT&T WorldNet Services
4323 1151 704 221 Time Warner Telecom
174 1122 5825 1027 Cogent Communications
721 1092 21906 314 DLA Systems Automation Center
701 1003 8154 854 UUNET Technologies, Inc.
6197 945 502 450 BellSouth Network Solutions,
2386 900 528 664 AT&T Data Communications Serv
1239 866 2848 628 Sprint
18566 834 224 7 Covad Communications
20115 641 502 324 Charter Communications
209 628 3470 490 Qwest
3356 576 10662 445 Level 3 Communications, LLC
27364 554 44 18 Armstrong Cable Services
3602 550 125 106 Sprint Canada, Inc.
3561 534 2416 422 Savvis
22773 523 1352 27 Cox Communications, Inc.
5668 501 115 23 CenturyTel Internet Holdings,
6198 473 417 227 BellSouth Network Solutions,
7132 455 4948 389 SBC Internet Services
19262 449 1362 120 Verizon Global Networks
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 592 1983 483 UUNET - Commercial IP service
3301 299 1081 285 TeliaNet Sweden
3320 290 3232 239 Deutsche Telekom AG
8220 263 474 259 COLT Telecommunications
680 245 2041 241 DFN-IP service G-WiN
3246 230 469 223 Song Networks
8708 227 261 213 Romania Data Systems S.A.
1257 198 713 176 SWIPnet Swedish IP Network
5515 181 778 127 Sonera Solution Autonomous Sy
6746 181 49 157 Dynamic Network Technologies,
786 174 1794 174 The JANET IP Service
3269 171 1528 68 TELECOM ITALIA
9121 167 279 43 TTnet Autonomous System
5400 165 289 139 BT Ignite European Backbone
8866 165 20 7 Bulgarian Telecommunication C
6830 157 669 33 UPC Distribution Services
3300 156 184 90 AUCS Communications Services
25186 144 145 101 France Telecom Transpac's Tra
8551 139 120 20 Bezeq International
1273 137 174 96 Cable & Wireless Deutschland
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 396 648 167 UniNet S.A. de C.V.
16814 265 16 7 NSS, S.A.
11172 242 99 57 Servicios Alestra S.A de C.V
6147 194 110 21 Telefonica Del Peru
11664 190 20 23 Keytech SA
14117 152 9 5 Telefonica del Sur S.A.
22047 145 128 7 VTR PUNTO NET S.A.
7303 143 68 15 Telecom Argentina Stet-France
19632 143 14 5 Metropolis Intercom S.A.
11556 131 64 3 Cable-Wireless Panama
6505 130 90 87 Global One Communicaoes Ltda
10481 120 48 8 Prima S.A.
19169 120 8 26 Telconet
18822 110 7 14 TELEFONICA MANQUEHUE
13999 109 52 9 Mega Cable S.A. de C.V.
6503 103 147 76 AVANTEL, S.A.
21826 103 13 15 INTERCABLE
5639 101 12 9 Telecommunications Services o
11311 97 8 14 Sinectis S.A.
23216 95 24 20 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 264 685 222 The Internet Solution
5536 122 8 15 Internet Egypt Network
8452 102 32 7 TEDATA
2018 96 295 87 Tertiary Education Network
2905 76 266 68 The Internetworking Company o
15475 66 84 4 Nile Online
24835 58 34 7 RAYA Telecom - Egypt
20928 57 16 2 Noor Advanced Technologies AS
6713 51 54 8 Itissalat Al-MAGHRIB
5713 41 149 32 Telkom SA Ltd
9129 31 3 3 UUNET Kenya
15706 31 8 3 Sudatel Internet Exchange Aut
12455 30 5 6 Jambonet Autonomous system
8524 24 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 21 1 12 Standard Bank of South Africa
23889 20 5 9 MAURITIUS TELECOM
12258 17 3 11 Vodacom Internet Company
15804 17 2 1 AS of The Way Out Internet So
15808 17 2 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1151 930 Time Warner Telecom
18566 834 827 Covad Communications
721 1092 778 DLA Systems Automation Center
4134 957 763 CHINANET-BACKBONE
9583 756 742 Sify Limited
4755 702 637 Videsh Sanchar Nigam Ltd. Aut
27364 554 536 Armstrong Cable Services
22773 523 496 Cox Communications, Inc.
6197 945 495 BellSouth Network Solutions,
5668 501 478 CenturyTel Internet Holdings,
7545 519 445 TPG Internet Pty Ltd
3602 550 444 Sprint Canada, Inc.
17676 465 366 Softbank BB Corp.
6467 437 364 E.Spire Communications, Inc.
19262 449 329 Verizon Global Networks
20115 641 317 Charter Communications
4766 599 316 Korea Telecom (KIX)
11492 319 312 Cable One
9443 382 305 Primus Telecommunications
6140 415 293 ImpSat
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
65511 PRIVATE 65.77.145.0/24 16605 Aaro Broadband Wirel
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
64943 PRIVATE 202.41.14.0/24 24110 Security Mail Pty Lt
64942 PRIVATE 202.41.15.0/24 24110 Security Mail Pty Lt
24413 UNALLOCATED 202.46.32.0/19 17623 China Netcom Corp.
65005 PRIVATE 203.200.197.0/24 4755 Videsh Sanchar Nigam
63946 RESERVED 204.222.174.0/23 268 Uniformed Services U
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 /8:17 /9:3 /10:8 /11:17 /12:76
/13:170 /14:320 /15:604 /16:8494 /17:2694 /18:4587
/19:10648 /20:11616 /21:9696 /22:13105 /23:13995 /24:91422
/25:340 /26:336 /27:192 /28:50 /29:28 /30:77
/31:1 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 818 834 Covad Communications
6197 768 945 BellSouth Network Solutions,
7018 722 1517 AT&T WorldNet Services
2386 607 900 AT&T Data Communications Serv
9583 573 756 Sify Limited
4323 550 1151 Time Warner Telecom
27364 545 554 Armstrong Cable Services
4766 416 599 Korea Telecom (KIX)
5668 405 501 CenturyTel Internet Holdings,
702 366 592 UUNET - Commercial IP service
19916 363 370 OLM LLC
1239 360 866 Sprint
6198 345 473 BellSouth Network Solutions,
7011 343 398 Citizens Utilities
11492 311 319 Cable One
6517 301 323 Yipes Communications, Inc.
15270 300 324 PaeTec.net -a division of Pae
6467 291 437 E.Spire Communications, Inc.
18302 286 301 SK Global co., Ltd
701 279 1003 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:7 8:23 11:1 12:1574 13:1 15:9
16:2 17:3 18:3 20:5 24:960 30:3
32:61 33:1 38:143 40:56 44:4 47:2
52:4 55:2 56:3 57:23 58:154 59:62
60:111 61:721 62:710 63:1891 64:2833 65:2075
66:2896 67:593 68:581 69:1148 70:172 71:12
72:339 80:593 81:540 82:458 83:298 84:226
85:277 86:80 87:27 128:152 129:167 130:90
131:299 132:34 133:1 134:143 135:42 136:149
137:63 138:163 139:62 140:397 141:105 142:145
143:137 144:192 145:33 146:292 147:111 148:299
149:180 150:107 151:64 152:108 153:89 154:5
155:143 156:78 157:99 158:167 159:167 160:82
161:72 162:220 163:111 164:188 165:195 166:154
167:247 168:437 169:142 170:317 171:8 190:1
192:5745 193:3258 194:2400 195:1579 196:654 198:3876
199:3282 200:4119 201:234 202:6031 203:6367 204:3788
205:2032 206:2460 207:2833 208:2043 209:3338 210:1659
211:784 212:1223 213:1316 214:293 215:35 216:3639
217:1113 218:217 219:165 220:434 221:243 222:118
End of report
