Routing Table Report 04:00 +10GMT Thu 22 Dec, 2005
Analysis Summary
----------------
BGP routing table entries examined: 176694
Prefixes after maximum aggregation: 99650
Unique aggregates announced to Internet: 85844
Total ASes present in the Internet Routing Table: 21208
Origin-only ASes present in the Internet Routing Table: 18462
Origin ASes announcing only one prefix: 8736
Transit ASes present in the Internet Routing Table: 2746
Transit-only ASes present in the Internet Routing Table: 74
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 25
Prefixes from unregistered ASNs in the Routing Table: 18
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1491797632
Equivalent to 88 /8s, 235 /16s and 6 /24s
Percentage of available address space announced: 40.2
Percentage of allocated address space announced: 60.6
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 84895
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 36895
Total APNIC prefixes after maximum aggregation: 15762
Prefixes being announced from the APNIC address blocks: 34642
Unique aggregates announced from the APNIC address blocks: 17081
APNIC Region origin ASes present in the Internet Routing Table: 2447
APNIC Region origin ASes announcing only one prefix: 702
APNIC Region transit ASes present in the Internet Routing Table: 368
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 208936640
Equivalent to 12 /8s, 116 /16s and 30 /24s
Percentage of available APNIC address space announced: 77.5
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: 93139
Total ARIN prefixes after maximum aggregation: 56112
Prefixes being announced from the ARIN address blocks: 72572
Unique aggregates announced from the ARIN address blocks: 27757
ARIN Region origin ASes present in the Internet Routing Table: 10398
ARIN Region origin ASes announcing only one prefix: 3865
ARIN Region transit ASes present in the Internet Routing Table: 957
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 280728832
Equivalent to 16 /8s, 187 /16s and 149 /24s
Percentage of available ARIN address space announced: 69.7
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: 34701
Total RIPE prefixes after maximum aggregation: 23525
Prefixes being announced from the RIPE address blocks: 31704
Unique aggregates announced from the RIPE address blocks: 21278
RIPE Region origin ASes present in the Internet Routing Table: 7483
RIPE Region origin ASes announcing only one prefix: 3915
RIPE Region transit ASes present in the Internet Routing Table: 1230
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 228403968
Equivalent to 13 /8s, 157 /16s and 43 /24s
Percentage of available RIPE address space announced: 68.1
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: 10109
Total LACNIC prefixes after maximum aggregation: 3395
Prefixes being announced from the LACNIC address blocks: 8324
Unique aggregates announced from the LACNIC address blocks: 4801
LACNIC Region origin ASes present in the Internet Routing Table: 661
LACNIC Region origin ASes announcing only one prefix: 208
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: 24
Number of LACNIC addresses announced to Internet: 23143168
Equivalent to 1 /8s, 97 /16s and 35 /24s
Percentage of available LACNIC address space announced: 34.5
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: 1836
Total AfriNIC prefixes after maximum aggregation: 856
Prefixes being announced from the AfriNIC address blocks: 1192
Unique aggregates announced from the AfriNIC address blocks: 810
AfriNIC Region origin ASes present in the Internet Routing Table: 145
AfriNIC Region origin ASes announcing only one prefix: 46
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: 2902272
Equivalent to 0 /8s, 44 /16s and 73 /24s
Percentage of available AfriNIC address space announced: 8.6
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 1014 6467 205 CHINANET-BACKBONE
9583 844 77 12 Sify Limited
1221 664 1364 474 Telstra Pty Ltd
4766 659 3928 289 Korea Telecom (KIX)
4755 604 256 58 Videsh Sanchar Nigam Ltd. Aut
7545 512 108 71 TPG Internet Pty Ltd
17676 475 6853 99 Softbank BB Corp.
17488 430 26 11 Hathway IP Over Cable Interne
9498 429 212 68 BHARTI BT INTERNET LTD.
9443 399 89 85 Primus Telecommunications
4802 349 74 160 Wantree Development
2907 338 1763 315 SINET Japan
9929 331 217 49 China Netcom Corp.
7474 324 226 223 SingTel Optus Pty Ltd
17557 308 24 161 Pakistan Telecom
17974 287 69 23 PT TELEKOMUNIKASI INDONESIA
18101 282 68 19 Reliance Infocom Ltd Internet
4780 281 226 16 Digital United Inc.
9837 273 78 172 Powertel Ltd
9800 255 410 67 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1463 6314 959 AT&T WorldNet Services
4323 1194 722 235 Time Warner Telecom
174 1053 5826 970 Cogent Communications
721 1031 21938 309 DLA Systems Automation Center
701 973 8118 817 UUNET Technologies, Inc.
6197 969 434 506 BellSouth Network Solutions,
2386 913 517 687 AT&T Data Communications Serv
18566 886 240 7 Covad Communications
1239 847 2804 602 Sprint
209 656 3605 523 Qwest
20115 654 534 338 Charter Communications
11492 634 89 11 Cable One
22773 593 1477 29 Cox Communications, Inc.
19262 576 1631 141 Verizon Global Networks
852 572 1092 380 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 562 243 65 Canadian Research Network
3356 526 10618 404 Level 3 Communications, LLC
3602 523 127 106 Sprint Canada, Inc.
6478 517 1435 284 AT&T Worldnet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 590 1954 468 UUNET - Commercial IP service
3301 304 1071 290 TeliaNet Sweden
3320 287 3487 241 Deutsche Telekom AG
8220 273 474 267 COLT Telecommunications
680 244 2024 238 DFN-IP service G-WiN
3246 229 486 222 Song Networks
8708 224 274 208 Romania Data Systems S.A.
6746 204 51 175 Dynamic Network Technologies,
1257 189 712 170 SWIPnet Swedish IP Network
3269 182 1829 68 TELECOM ITALIA
5515 180 840 127 Sonera Solution Autonomous Sy
786 173 1794 173 The JANET IP Service
5400 167 328 136 BT Ignite European Backbone
8866 167 37 11 Bulgarian Telecommunication C
24863 164 38 9 LINKdotNET AS number
6830 162 669 33 UPC Distribution Services
3215 161 1325 81 France Telecom Transpac
3300 159 169 93 AUCS Communications Services
12479 154 322 5 Uni2 Autonomous System
25186 146 211 103 France Telecom Transpac's Tra
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 472 744 209 UniNet S.A. de C.V.
22047 380 141 43 VTR PUNTO NET S.A.
16814 295 18 7 NSS, S.A.
11172 294 106 76 Servicios Alestra S.A de C.V
14117 181 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
11664 138 22 13 Keytech SA
11556 130 64 3 Cable-Wireless Panama
19169 128 8 21 Telconet
10481 121 48 8 Prima S.A.
6503 118 148 78 AVANTEL, S.A.
5639 112 12 9 Telecommunications Services o
21826 112 14 18 INTERCABLE
6505 106 88 79 Global One Communicaoes Ltda
11311 99 8 10 Sinectis S.A.
18822 98 7 10 TELEFONICA MANQUEHUE
14522 94 12 8 SatNet 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 272 812 230 The Internet Solution
8452 146 44 7 TEDATA
5536 122 8 16 Internet Egypt Network
2018 117 298 103 Tertiary Education Network
15475 103 84 4 Nile Online
2905 74 155 67 The Internetworking Company o
6713 69 71 10 Itissalat Al-MAGHRIB
24835 64 34 6 RAYA Telecom - Egypt
20928 61 16 2 Noor Advanced Technologies AS
5713 38 151 34 Telkom SA Ltd
33774 33 4 24 AS Number for Telecom Algeria
15706 31 8 3 Sudatel Internet Exchange Aut
23889 26 7 11 MAURITIUS TELECOM
8524 23 1 4 AUCEGYPT Autonomous System
16637 23 10 21 Johnnic e-Ventures
21280 23 4 4 Swift Global Kenya Ltd.Is an
10798 22 1 13 Standard Bank of South Africa
12455 18 6 5 Jambonet Autonomous system
12258 17 3 11 Vodacom Internet Company
15808 17 2 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1194 959 Time Warner Telecom
18566 886 879 Covad Communications
9583 844 832 Sify Limited
4134 1014 809 CHINANET-BACKBONE
721 1031 722 DLA Systems Automation Center
11492 634 623 Cable One
22773 593 564 Cox Communications, Inc.
4755 604 546 Videsh Sanchar Nigam Ltd. Aut
19916 563 509 OLM LLC
855 562 497 Canadian Research Network
5668 498 474 CenturyTel Internet Holdings,
6197 969 463 BellSouth Network Solutions,
7545 512 441 TPG Internet Pty Ltd
19262 576 435 Verizon Global Networks
17488 430 419 Hathway IP Over Cable Interne
3602 523 417 Sprint Canada, Inc.
17676 475 376 Softbank BB Corp.
4766 659 370 Korea Telecom (KIX)
9498 429 361 BHARTI BT INTERNET LTD.
6467 405 359 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
29544 UNALLOCATED 82.151.64.0/19 12956 Telefonica Data Auto
65501 PRIVATE 200.73.24.0/24 18747 IFX Communication Ve
65501 PRIVATE 200.73.25.0/24 18747 IFX Communication Ve
65501 PRIVATE 200.73.26.0/24 18747 IFX Communication Ve
65501 PRIVATE 200.73.27.0/24 18747 IFX Communication Ve
65501 PRIVATE 200.73.28.0/24 18747 IFX Communication Ve
65501 PRIVATE 200.73.85.0/24 18747 IFX Communication Ve
65501 PRIVATE 200.73.86.0/24 18747 IFX Communication Ve
65501 PRIVATE 200.73.87.0/24 18747 IFX Communication Ve
24413 UNALLOCATED 202.46.32.0/19 17623 China Netcom Corp.
24408 UNALLOCATED 203.119.26.0/24 9800 CHINA UNICOM
24408 UNALLOCATED 203.119.27.0/24 9800 CHINA UNICOM
24408 UNALLOCATED 203.119.28.0/24 9800 CHINA UNICOM
24406 UNALLOCATED 203.119.29.0/24 4808 CNCGROUP IP network:
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.
192.119.135.0/24 270 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 /8:19 /9:5 /10:8 /11:20 /12:85
/13:192 /14:344 /15:669 /16:8632 /17:2921 /18:4942
/19:11141 /20:12248 /21:10347 /22:13551 /23:14693 /24:95995
/25:334 /26:249 /27:195 /28:27 /29:12 /30:31
/31:3 /32:31
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 870 886 Covad Communications
6197 783 969 BellSouth Network Solutions,
7018 720 1463 AT&T WorldNet Services
9583 664 844 Sify Limited
2386 634 913 AT&T Data Communications Serv
11492 625 634 Cable One
4323 570 1194 Time Warner Telecom
19916 557 563 OLM LLC
4766 464 659 Korea Telecom (KIX)
855 434 562 Canadian Research Network
7011 402 466 Citizens Utilities
5668 387 498 CenturyTel Internet Holdings,
702 373 590 UUNET - Commercial IP service
1239 364 847 Sprint
6198 355 497 BellSouth Network Solutions,
6517 326 351 Yipes Communications, Inc.
15270 325 352 PaeTec.net -a division of Pae
22773 307 593 Cox Communications, Inc.
13609 285 328 Choice One Communications Inc
701 282 973 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:40 12:1626 13:1 15:11 16:3
17:3 18:3 20:42 24:711 25:1 30:2
32:67 38:188 40:54 44:3 47:3 52:4
55:1 56:3 57:33 58:104 59:104 60:169
61:760 62:810 63:1890 64:2921 65:2140 66:2875
67:593 68:693 69:1313 70:256 71:38 72:501
73:10 80:686 81:599 82:507 83:334 84:321
85:393 86:241 87:119 125:140 128:138 129:167
130:101 131:304 132:35 133:1 134:151 135:44
136:163 137:62 138:176 139:92 140:445 141:139
142:403 143:146 144:225 145:39 146:307 147:135
148:351 149:189 150:109 151:71 152:115 153:97
154:6 155:183 156:90 157:119 158:150 159:176
160:87 161:74 162:247 163:175 164:167 165:182
166:146 167:243 168:469 169:142 170:311 171:12
192:5717 193:3341 194:2455 195:1689 196:720 198:3896
199:3275 200:4318 201:475 202:6324 203:6603 204:3823
205:2109 206:2405 207:2935 208:2028 209:3435 210:1836
211:781 212:1246 213:1387 214:313 215:40 216:3779
217:1163 218:227 219:127 220:581 221:335 222:129
End of report