Routing Table Report 04:00 +10GMT Thu 02 Feb, 2006
Analysis Summary
----------------
BGP routing table entries examined: 180297
Prefixes after maximum aggregation: 100660
Unique aggregates announced to Internet: 87858
Total ASes present in the Internet Routing Table: 21415
Origin-only ASes present in the Internet Routing Table: 18618
Origin ASes announcing only one prefix: 8830
Transit ASes present in the Internet Routing Table: 2797
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: 27
Prefixes from unregistered ASNs in the Routing Table: 2
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1486669088
Equivalent to 88 /8s, 156 /16s and 197 /24s
Percentage of available address space announced: 40.1
Percentage of allocated address space announced: 59.2
Percentage of available address space allocated: 67.8
Total number of prefixes smaller than registry allocations: 87383
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 37877
Total APNIC prefixes after maximum aggregation: 15950
Prefixes being announced from the APNIC address blocks: 35649
Unique aggregates announced from the APNIC address blocks: 17426
APNIC Region origin ASes present in the Internet Routing Table: 2463
APNIC Region origin ASes announcing only one prefix: 692
APNIC Region transit ASes present in the Internet Routing Table: 380
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 211672800
Equivalent to 12 /8s, 157 /16s and 222 /24s
Percentage of available APNIC address space announced: 66.2
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, 121/8, 122/7, 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: 94763
Total ARIN prefixes after maximum aggregation: 56432
Prefixes being announced from the ARIN address blocks: 74135
Unique aggregates announced from the ARIN address blocks: 28354
ARIN Region origin ASes present in the Internet Routing Table: 10475
ARIN Region origin ASes announcing only one prefix: 3906
ARIN Region transit ASes present in the Internet Routing Table: 973
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 285528576
Equivalent to 17 /8s, 4 /16s and 210 /24s
Percentage of available ARIN address space announced: 70.9
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: 35435
Total RIPE prefixes after maximum aggregation: 23919
Prefixes being announced from the RIPE address blocks: 32458
Unique aggregates announced from the RIPE address blocks: 21883
RIPE Region origin ASes present in the Internet Routing Table: 7590
RIPE Region origin ASes announcing only one prefix: 3968
RIPE Region transit ASes present in the Internet Routing Table: 1256
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 27
Number of RIPE addresses announced to Internet: 230568064
Equivalent to 13 /8s, 190 /16s and 48 /24s
Percentage of available RIPE address space announced: 68.7
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, 38912-39935
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: 10344
Total LACNIC prefixes after maximum aggregation: 3485
Prefixes being announced from the LACNIC address blocks: 8547
Unique aggregates announced from the LACNIC address blocks: 5102
LACNIC Region origin ASes present in the Internet Routing Table: 670
LACNIC Region origin ASes announcing only one prefix: 220
LACNIC Region transit ASes present in the Internet Routing Table: 122
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 22
Number of LACNIC addresses announced to Internet: 25061120
Equivalent to 1 /8s, 126 /16s and 103 /24s
Percentage of available LACNIC address space announced: 37.3
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: 1870
Total AfriNIC prefixes after maximum aggregation: 874
Prefixes being announced from the AfriNIC address blocks: 1231
Unique aggregates announced from the AfriNIC address blocks: 870
AfriNIC Region origin ASes present in the Internet Routing Table: 145
AfriNIC Region origin ASes announcing only one prefix: 44
AfriNIC Region transit ASes present in the Internet Routing Table: 24
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 3041024
Equivalent to 0 /8s, 46 /16s and 103 /24s
Percentage of available AfriNIC address space announced: 9.1
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 982 6462 204 CHINANET-BACKBONE
9583 850 109 15 Sify Limited
4755 799 258 64 Videsh Sanchar Nigam Ltd. Aut
4766 728 3928 303 Korea Telecom (KIX)
1221 668 1428 476 Telstra Pty Ltd
7545 516 108 70 TPG Internet Pty Ltd
9498 515 211 69 BHARTI BT INTERNET LTD.
17676 480 6949 104 Softbank BB Corp.
17488 449 27 7 Hathway IP Over Cable Interne
9443 411 94 85 Primus Telecommunications
4802 369 75 160 Wantree Development
2907 338 1763 315 SINET Japan
9929 335 218 50 China Netcom Corp.
7474 330 227 228 SingTel Optus Pty Ltd
18101 328 68 26 Reliance Infocom Ltd Internet
17974 316 77 37 PT TELEKOMUNIKASI INDONESIA
17557 312 25 161 Pakistan Telecom
4780 282 226 16 Digital United Inc.
9837 271 78 169 Powertel Ltd
9800 259 410 67 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1464 6263 947 AT&T WorldNet Services
4323 1209 720 236 Time Warner Telecom
174 1035 5789 949 Cogent Communications
721 1029 21970 310 DLA Systems Automation Center
6197 984 593 474 BellSouth Network Solutions,
701 950 8064 794 UUNET Technologies, Inc.
18566 899 272 8 Covad Communications
2386 882 501 690 AT&T Data Communications Serv
1239 851 2792 602 Sprint
20115 672 546 351 Charter Communications
209 666 3604 532 Qwest
6198 635 449 238 BellSouth Network Solutions,
11492 631 81 13 Cable One
22773 617 1478 37 Cox Communications, Inc.
19262 609 1747 147 Verizon Global Networks
855 573 243 65 Canadian Research Network
852 570 1092 379 Telus Advanced Communications
19916 563 49 54 OLM LLC
3602 518 127 106 Sprint Canada, Inc.
5668 510 143 24 CenturyTel Internet Holdings,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 589 1954 465 UUNET - Commercial IP service
3301 304 1071 290 TeliaNet Sweden
3352 303 1500 34 Ibernet, Internet Access Netw
3320 281 3485 235 Deutsche Telekom AG
8220 275 474 269 COLT Telecommunications
680 242 2025 239 DFN-IP service G-WiN
3246 229 487 219 Song Networks
8708 223 275 207 Romania Data Systems S.A.
6746 218 85 189 Dynamic Network Technologies,
1257 195 712 173 SWIPnet Swedish IP Network
3269 185 1925 70 TELECOM ITALIA
5515 177 840 125 Sonera Solution Autonomous Sy
8866 175 37 13 Bulgarian Telecommunication C
786 173 1794 173 The JANET IP Service
3215 168 1382 82 France Telecom Transpac
24863 168 38 9 LINKdotNET AS number
5400 167 328 137 BT Ignite European Backbone
3300 165 171 94 AUCS Communications Services
6830 160 669 33 UPC Distribution Services
12479 157 322 5 Uni2 Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 567 1048 217 UniNet S.A. de C.V.
22047 379 141 44 VTR PUNTO NET S.A.
11172 304 110 77 Servicios Alestra S.A de C.V
16814 295 18 7 NSS, S.A.
13999 189 51 18 Mega Cable S.A. de C.V.
14117 181 11 6 Telefonica del Sur S.A.
6147 154 126 22 Telefonica Del Peru
7303 154 73 18 Telecom Argentina Stet-France
11556 130 64 3 Cable-Wireless Panama
19169 123 8 30 Telconet
10481 121 48 8 Prima S.A.
6503 115 148 76 AVANTEL, S.A.
21826 115 15 21 INTERCABLE
5639 112 12 9 Telecommunications Services o
6505 106 88 78 Global One Communicaoes Ltda
18822 99 8 10 TELEFONICA MANQUEHUE
7315 96 6 3 Grupo Rey Moreno
19429 96 52 49 E.T.B.
11311 94 8 23 Sinectis S.A.
4270 93 17 9 Red de Interconexion Universi
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 278 819 234 The Internet Solution
8452 158 60 7 TEDATA
5536 122 8 16 Internet Egypt Network
2018 117 298 103 Tertiary Education Network
15475 102 84 4 Nile Online
2905 74 155 67 The Internetworking Company o
6713 68 71 10 Itissalat Al-MAGHRIB
20928 60 16 2 Noor Advanced Technologies AS
24835 55 34 6 RAYA Telecom - Egypt
5713 38 166 34 Telkom SA Ltd
33774 37 9 28 AS Number for Telecom Algeria
15706 31 8 3 Sudatel Internet Exchange Aut
12455 28 6 5 Jambonet Autonomous system
23889 25 7 10 MAURITIUS TELECOM
8524 23 1 4 AUCEGYPT Autonomous System
16637 23 10 21 Johnnic e-Ventures
10798 22 1 13 Standard Bank of South Africa
8346 21 14 18 SONATEL-AS Autonomous System
21280 18 4 4 Swift Global Kenya Ltd.Is an
12258 17 3 11 Vodacom Internet Company
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1209 973 Time Warner Telecom
18566 899 891 Covad Communications
9583 850 835 Sify Limited
4134 982 778 CHINANET-BACKBONE
4755 799 735 Videsh Sanchar Nigam Ltd. Aut
721 1029 719 DLA Systems Automation Center
11492 631 618 Cable One
22773 617 580 Cox Communications, Inc.
6197 984 510 BellSouth Network Solutions,
19916 563 509 OLM LLC
855 573 508 Canadian Research Network
5668 510 486 CenturyTel Internet Holdings,
19262 609 462 Verizon Global Networks
7545 516 446 TPG Internet Pty Ltd
9498 515 446 BHARTI BT INTERNET LTD.
7757 461 442 AT&T Broadband
17488 449 442 Hathway IP Over Cable Interne
4766 728 425 Korea Telecom (KIX)
3602 518 412 Sprint Canada, Inc.
812 438 410 Rogers WAVE
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65005 PRIVATE 159.153.148.0/22 24989 IX Europe Frankfurt
65010 PRIVATE 193.42.223.0/24 21050 kw.fast-telco Autnom
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
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.172.0.0/19 721 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 /8:18 /9:5 /10:8 /11:20 /12:87
/13:199 /14:346 /15:690 /16:8681 /17:2988 /18:5000
/19:11247 /20:12437 /21:10805 /22:13834 /23:15002 /24:97933
/25:331 /26:278 /27:202 /28:63 /29:26 /30:55
/31:3 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 882 899 Covad Communications
6197 783 984 BellSouth Network Solutions,
7018 746 1464 AT&T WorldNet Services
9583 669 850 Sify Limited
11492 623 631 Cable One
2386 616 882 AT&T Data Communications Serv
4323 583 1209 Time Warner Telecom
19916 557 563 OLM LLC
4766 529 728 Korea Telecom (KIX)
6198 500 635 BellSouth Network Solutions,
855 445 573 Canadian Research Network
7757 443 461 AT&T Broadband
7011 408 474 Citizens Utilities
5668 396 510 CenturyTel Internet Holdings,
702 375 589 UUNET - Commercial IP service
1239 369 851 Sprint
6517 343 370 Yipes Communications, Inc.
15270 339 367 PaeTec.net -a division of Pae
22773 323 617 Cox Communications, Inc.
812 317 438 Rogers WAVE
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:44 12:1631 13:1 15:11 16:3
17:3 18:4 20:42 24:856 25:1 30:2
32:66 38:190 40:54 44:3 47:3 52:4
55:1 56:3 57:34 58:117 59:163 60:199
61:823 62:764 63:1895 64:2941 65:2227 66:3059
67:577 68:668 69:1419 70:296 71:55 72:596
73:23 74:1 80:755 81:595 82:501 83:359
84:343 85:425 86:287 87:162 88:17 89:10
124:8 125:195 128:155 129:172 130:103 131:310
132:33 133:7 134:145 135:46 136:169 137:61
138:182 139:87 140:381 141:133 142:414 143:144
144:223 145:39 146:309 147:134 148:323 149:182
150:114 151:72 152:61 153:100 154:6 155:186
156:89 157:120 158:157 159:180 160:88 161:67
162:219 163:176 164:178 165:198 166:145 167:236
168:471 169:139 170:316 171:12 190:30 192:5760
193:3350 194:2484 195:1749 196:751 198:3902 199:3261
200:4238 201:572 202:6469 203:6747 204:3886 205:2093
206:2434 207:2928 208:2006 209:3531 210:1867 211:790
212:1288 213:1420 214:320 215:40 216:3847 217:1153
218:235 219:135 220:641 221:339 222:146
End of report