Routing Table Report 04:00 +10GMT Sun 08 Jan, 2006
Analysis Summary
----------------
BGP routing table entries examined: 177802
Prefixes after maximum aggregation: 99911
Unique aggregates announced to Internet: 86489
Total ASes present in the Internet Routing Table: 21271
Origin-only ASes present in the Internet Routing Table: 18498
Origin ASes announcing only one prefix: 8770
Transit ASes present in the Internet Routing Table: 2773
Transit-only ASes present in the Internet Routing Table: 71
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 25
Prefixes from unregistered ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1478147488
Equivalent to 88 /8s, 26 /16s and 189 /24s
Percentage of available address space announced: 39.9
Percentage of allocated address space announced: 60.0
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 85744
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 37287
Total APNIC prefixes after maximum aggregation: 15805
Prefixes being announced from the APNIC address blocks: 35084
Unique aggregates announced from the APNIC address blocks: 17223
APNIC Region origin ASes present in the Internet Routing Table: 2453
APNIC Region origin ASes announcing only one prefix: 696
APNIC Region transit ASes present in the Internet Routing Table: 377
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 210111936
Equivalent to 12 /8s, 134 /16s and 13 /24s
Percentage of available APNIC address space announced: 78.0
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: 93650
Total ARIN prefixes after maximum aggregation: 56213
Prefixes being announced from the ARIN address blocks: 72999
Unique aggregates announced from the ARIN address blocks: 27956
ARIN Region origin ASes present in the Internet Routing Table: 10410
ARIN Region origin ASes announcing only one prefix: 3870
ARIN Region transit ASes present in the Internet Routing Table: 964
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 281704960
Equivalent to 16 /8s, 202 /16s and 122 /24s
Percentage of available ARIN address space announced: 70.0
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: 34862
Total RIPE prefixes after maximum aggregation: 23625
Prefixes being announced from the RIPE address blocks: 31853
Unique aggregates announced from the RIPE address blocks: 21442
RIPE Region origin ASes present in the Internet Routing Table: 7530
RIPE Region origin ASes announcing only one prefix: 3946
RIPE Region transit ASes present in the Internet Routing Table: 1237
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 229026496
Equivalent to 13 /8s, 166 /16s and 170 /24s
Percentage of available RIPE address space announced: 68.3
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: 10140
Total LACNIC prefixes after maximum aggregation: 3406
Prefixes being announced from the LACNIC address blocks: 8343
Unique aggregates announced from the LACNIC address blocks: 4831
LACNIC Region origin ASes present in the Internet Routing Table: 661
LACNIC Region origin ASes announcing only one prefix: 211
LACNIC Region transit ASes present in the Internet Routing Table: 125
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 22
Number of LACNIC addresses announced to Internet: 23546880
Equivalent to 1 /8s, 103 /16s and 76 /24s
Percentage of available LACNIC address space announced: 35.1
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: 1857
Total AfriNIC prefixes after maximum aggregation: 862
Prefixes being announced from the AfriNIC address blocks: 1210
Unique aggregates announced from the AfriNIC address blocks: 854
AfriNIC Region origin ASes present in the Internet Routing Table: 145
AfriNIC Region origin ASes announcing only one prefix: 47
AfriNIC Region transit ASes present in the Internet Routing Table: 27
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2971904
Equivalent to 0 /8s, 45 /16s and 89 /24s
Percentage of available AfriNIC address space announced: 8.9
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 994 6449 205 CHINANET-BACKBONE
9583 836 77 14 Sify Limited
4755 769 258 64 Videsh Sanchar Nigam Ltd. Aut
4766 705 3930 298 Korea Telecom (KIX)
1221 669 1364 477 Telstra Pty Ltd
7545 514 108 70 TPG Internet Pty Ltd
9498 486 211 68 BHARTI BT INTERNET LTD.
17676 478 6901 102 Softbank BB Corp.
17488 436 26 9 Hathway IP Over Cable Interne
9443 399 89 85 Primus Telecommunications
4802 355 74 160 Wantree Development
2907 338 1763 315 SINET Japan
9929 332 217 50 China Netcom Corp.
7474 329 227 227 SingTel Optus Pty Ltd
17557 307 24 161 Pakistan Telecom
18101 301 68 23 Reliance Infocom Ltd Internet
17974 295 72 31 PT TELEKOMUNIKASI INDONESIA
4780 283 226 16 Digital United Inc.
9837 270 78 169 Powertel Ltd
9800 256 410 67 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1446 6311 947 AT&T WorldNet Services
4323 1202 723 235 Time Warner Telecom
174 1042 5825 960 Cogent Communications
721 1025 21938 306 DLA Systems Automation Center
701 970 8101 814 UUNET Technologies, Inc.
6197 968 435 504 BellSouth Network Solutions,
2386 914 517 686 AT&T Data Communications Serv
18566 890 272 8 Covad Communications
1239 846 2803 600 Sprint
209 659 3606 527 Qwest
20115 657 537 339 Charter Communications
11492 640 89 11 Cable One
22773 601 1478 33 Cox Communications, Inc.
19262 592 1703 145 Verizon Global Networks
852 570 1092 379 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 562 243 65 Canadian Research Network
6478 524 1448 288 AT&T Worldnet Services
3356 519 10617 399 Level 3 Communications, LLC
3602 519 125 103 Sprint Canada, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 589 1954 467 UUNET - Commercial IP service
3301 304 1071 290 TeliaNet Sweden
3320 285 3486 240 Deutsche Telekom AG
8220 274 474 268 COLT Telecommunications
680 244 2024 238 DFN-IP service G-WiN
3246 227 486 220 Song Networks
8708 222 274 206 Romania Data Systems S.A.
6746 205 52 177 Dynamic Network Technologies,
1257 189 712 169 SWIPnet Swedish IP Network
3269 184 1893 69 TELECOM ITALIA
5515 180 840 127 Sonera Solution Autonomous Sy
786 173 1794 173 The JANET IP Service
8866 172 37 11 Bulgarian Telecommunication C
5400 166 328 135 BT Ignite European Backbone
24863 166 38 9 LINKdotNET AS number
3215 162 1326 82 France Telecom Transpac
6830 162 669 33 UPC Distribution Services
3300 159 169 90 AUCS Communications Services
12479 157 322 5 Uni2 Autonomous System
25186 150 211 105 France Telecom Transpac's Tra
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 541 776 214 UniNet S.A. de C.V.
22047 380 141 43 VTR PUNTO NET S.A.
11172 296 109 77 Servicios Alestra S.A de C.V
16814 293 18 6 NSS, S.A.
14117 184 11 6 Telefonica del Sur S.A.
13999 175 52 9 Mega Cable S.A. de C.V.
7303 153 73 18 Telecom Argentina Stet-France
6147 150 118 21 Telefonica Del Peru
11556 130 64 3 Cable-Wireless Panama
19169 126 8 29 Telconet
10481 121 48 8 Prima S.A.
6503 115 132 76 AVANTEL, S.A.
21826 113 14 19 INTERCABLE
5639 112 12 9 Telecommunications Services o
6505 107 88 80 Global One Communicaoes Ltda
11311 100 8 14 Sinectis S.A.
18822 99 8 10 TELEFONICA MANQUEHUE
14522 97 12 8 SatNet S.A.
7315 96 6 3 Grupo Rey Moreno
4270 93 17 9 Red de Interconexion Universi
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 272 812 230 The Internet Solution
8452 147 60 7 TEDATA
5536 122 8 16 Internet Egypt Network
2018 117 298 103 Tertiary Education Network
15475 101 84 4 Nile Online
2905 74 155 67 The Internetworking Company o
6713 71 71 10 Itissalat Al-MAGHRIB
24835 67 34 6 RAYA Telecom - Egypt
20928 61 16 2 Noor Advanced Technologies AS
5713 39 167 35 Telkom SA Ltd
33774 33 4 24 AS Number for Telecom Algeria
15706 31 8 3 Sudatel Internet Exchange Aut
23889 25 7 10 MAURITIUS TELECOM
8524 23 1 4 AUCEGYPT Autonomous System
21280 23 4 4 Swift Global Kenya Ltd.Is an
10798 22 1 13 Standard Bank of South Africa
16637 22 10 20 Johnnic e-Ventures
8346 19 14 18 SONATEL-AS Autonomous System
12455 19 6 5 Jambonet Autonomous system
12258 17 3 11 Vodacom Internet Company
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1202 967 Time Warner Telecom
18566 890 882 Covad Communications
9583 836 822 Sify Limited
4134 994 789 CHINANET-BACKBONE
721 1025 719 DLA Systems Automation Center
4755 769 705 Videsh Sanchar Nigam Ltd. Aut
11492 640 629 Cable One
22773 601 568 Cox Communications, Inc.
19916 563 509 OLM LLC
855 562 497 Canadian Research Network
5668 511 487 CenturyTel Internet Holdings,
6197 968 464 BellSouth Network Solutions,
19262 592 447 Verizon Global Networks
7545 514 444 TPG Internet Pty Ltd
17488 436 427 Hathway IP Over Cable Interne
9498 486 418 BHARTI BT INTERNET LTD.
3602 519 416 Sprint Canada, Inc.
4766 705 407 Korea Telecom (KIX)
17676 478 376 Softbank BB Corp.
6467 401 354 E.Spire Communications, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
38976 UNALLOCATED 62.192.224.0/19 21166 Satgate autonomous s
38976 UNALLOCATED 62.192.232.0/24 21166 Satgate autonomous s
38972 UNALLOCATED 80.251.144.0/21 6828 Ekaterinburg Telegra
38972 UNALLOCATED 80.251.151.0/24 6828 Ekaterinburg Telegra
38972 UNALLOCATED 80.251.152.0/23 28947 CJSC InT, Ekaterinbu
29544 UNALLOCATED 82.151.64.0/19 12956 Telefonica Data Auto
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
/13:196 /14:346 /15:671 /16:8639 /17:2942 /18:4956
/19:11184 /20:12308 /21:10496 /22:13595 /23:14746 /24:96591
/25:343 /26:267 /27:198 /28:63 /29:26 /30:55
/31:3 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 873 890 Covad Communications
6197 783 968 BellSouth Network Solutions,
7018 722 1446 AT&T WorldNet Services
9583 657 836 Sify Limited
2386 637 914 AT&T Data Communications Serv
11492 631 640 Cable One
4323 577 1202 Time Warner Telecom
19916 557 563 OLM LLC
4766 508 705 Korea Telecom (KIX)
855 434 562 Canadian Research Network
5668 400 511 CenturyTel Internet Holdings,
7011 398 464 Citizens Utilities
702 373 589 UUNET - Commercial IP service
1239 365 846 Sprint
6198 355 498 BellSouth Network Solutions,
6517 330 357 Yipes Communications, Inc.
15270 330 357 PaeTec.net -a division of Pae
22773 311 601 Cox Communications, Inc.
13609 290 332 Choice One Communications Inc
701 281 970 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:42 12:1629 13:1 15:11 16:3
17:3 18:3 20:41 24:715 25:1 30:2
32:69 38:184 40:54 44:3 47:3 52:4
55:1 56:3 57:34 58:110 59:146 60:174
61:806 62:781 63:1897 64:2938 65:2146 66:3003
67:592 68:696 69:1350 70:264 71:41 72:541
73:16 80:692 81:596 82:506 83:351 84:336
85:404 86:249 87:124 125:146 128:151 129:169
130:100 131:304 132:33 133:1 134:151 135:45
136:162 137:64 138:178 139:92 140:445 141:136
142:403 143:145 144:226 145:39 146:310 147:135
148:347 149:188 150:113 151:71 152:115 153:98
154:6 155:183 156:90 157:119 158:152 159:175
160:87 161:67 162:247 163:176 164:166 165:169
166:148 167:237 168:473 169:142 170:308 171:12
192:5750 193:3345 194:2459 195:1704 196:735 198:3889
199:3263 200:4183 201:548 202:6375 203:6675 204:3819
205:2094 206:2409 207:2916 208:2009 209:3455 210:1851
211:792 212:1239 213:1400 214:317 215:40 216:3827
217:1154 218:233 219:132 220:617 221:330 222:139
End of report