Routing Table Report 04:00 +10GMT Fri 23 Dec, 2005
Analysis Summary
----------------
BGP routing table entries examined: 176979
Prefixes after maximum aggregation: 99679
Unique aggregates announced to Internet: 85931
Total ASes present in the Internet Routing Table: 21233
Origin-only ASes present in the Internet Routing Table: 18481
Origin ASes announcing only one prefix: 8746
Transit ASes present in the Internet Routing Table: 2752
Transit-only ASes present in the Internet Routing Table: 75
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: 11
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1492051904
Equivalent to 88 /8s, 238 /16s and 231 /24s
Percentage of available address space announced: 40.3
Percentage of allocated address space announced: 60.6
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 85077
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 36968
Total APNIC prefixes after maximum aggregation: 15758
Prefixes being announced from the APNIC address blocks: 34710
Unique aggregates announced from the APNIC address blocks: 17087
APNIC Region origin ASes present in the Internet Routing Table: 2446
APNIC Region origin ASes announcing only one prefix: 698
APNIC Region transit ASes present in the Internet Routing Table: 371
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 208946880
Equivalent to 12 /8s, 116 /16s and 70 /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: 93339
Total ARIN prefixes after maximum aggregation: 56135
Prefixes being announced from the ARIN address blocks: 72700
Unique aggregates announced from the ARIN address blocks: 27841
ARIN Region origin ASes present in the Internet Routing Table: 10403
ARIN Region origin ASes announcing only one prefix: 3863
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: 280729600
Equivalent to 16 /8s, 187 /16s and 152 /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: 34719
Total RIPE prefixes after maximum aggregation: 23542
Prefixes being announced from the RIPE address blocks: 31720
Unique aggregates announced from the RIPE address blocks: 21298
RIPE Region origin ASes present in the Internet Routing Table: 7501
RIPE Region origin ASes announcing only one prefix: 3929
RIPE Region transit ASes present in the Internet Routing Table: 1235
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 228578112
Equivalent to 13 /8s, 159 /16s and 211 /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: 10111
Total LACNIC prefixes after maximum aggregation: 3383
Prefixes being announced from the LACNIC address blocks: 8345
Unique aggregates announced from the LACNIC address blocks: 4767
LACNIC Region origin ASes present in the Internet Routing Table: 662
LACNIC Region origin ASes announcing only one prefix: 209
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: 23280896
Equivalent to 1 /8s, 99 /16s and 61 /24s
Percentage of available LACNIC address space announced: 34.7
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: 861
Prefixes being announced from the AfriNIC address blocks: 1192
Unique aggregates announced from the AfriNIC address blocks: 814
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: 26
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2897152
Equivalent to 0 /8s, 44 /16s and 53 /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 1015 6469 206 CHINANET-BACKBONE
9583 841 77 12 Sify Limited
1221 666 1364 476 Telstra Pty Ltd
4766 659 3928 289 Korea Telecom (KIX)
4755 624 256 60 Videsh Sanchar Nigam Ltd. Aut
7545 515 108 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 348 74 159 Wantree Development
2907 338 1763 315 SINET Japan
9929 331 217 49 China Netcom Corp.
7474 324 226 222 SingTel Optus Pty Ltd
17557 308 24 161 Pakistan Telecom
17974 287 69 23 PT TELEKOMUNIKASI INDONESIA
4780 282 226 16 Digital United Inc.
18101 282 68 19 Reliance Infocom Ltd Internet
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 1464 6314 960 AT&T WorldNet Services
4323 1194 722 235 Time Warner Telecom
174 1054 5826 971 Cogent Communications
721 1029 21938 308 DLA Systems Automation Center
701 972 8102 816 UUNET Technologies, Inc.
6197 970 434 506 BellSouth Network Solutions,
2386 914 517 688 AT&T Data Communications Serv
18566 886 240 7 Covad Communications
1239 848 2804 603 Sprint
209 661 3606 526 Qwest
20115 653 533 337 Charter Communications
11492 635 89 11 Cable One
22773 593 1477 29 Cox Communications, Inc.
19262 582 1649 142 Verizon Global Networks
852 572 1092 380 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 562 243 65 Canadian Research Network
3356 523 10618 402 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
702 591 1954 469 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 228 486 221 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 167 38 9 LINKdotNET AS number
3215 162 1326 82 France Telecom Transpac
6830 162 669 33 UPC Distribution Services
3300 158 169 92 AUCS Communications Services
12479 155 322 5 Uni2 Autonomous System
25186 147 211 103 France Telecom Transpac's Tra
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 487 776 210 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 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
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.
5639 112 12 9 Telecommunications Services o
21826 112 14 18 INTERCABLE
6503 106 147 76 AVANTEL, S.A.
6505 106 88 79 Global One Communicaoes Ltda
11311 98 8 10 Sinectis S.A.
14522 98 12 8 SatNet S.A.
18822 97 7 12 TELEFONICA MANQUEHUE
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 39 167 35 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 841 829 Sify Limited
4134 1015 809 CHINANET-BACKBONE
721 1029 721 DLA Systems Automation Center
11492 635 624 Cable One
4755 624 564 Videsh Sanchar Nigam Ltd. Aut
22773 593 564 Cox Communications, Inc.
19916 563 509 OLM LLC
855 562 497 Canadian Research Network
5668 498 474 CenturyTel Internet Holdings,
6197 970 464 BellSouth Network Solutions,
7545 515 444 TPG Internet Pty Ltd
19262 582 440 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 406 360 E.Spire Communications, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
38976 UNALLOCATED 62.192.224.0/19 21191 SeverTransTeleCom Au
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
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
/13:194 /14:344 /15:669 /16:8638 /17:2922 /18:4946
/19:11154 /20:12250 /21:10359 /22:13580 /23:14715 /24:96102
/25:335 /26:249 /27:197 /28:63 /29:26 /30:55
/31:3 /32:41
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 870 886 Covad Communications
6197 784 970 BellSouth Network Solutions,
7018 720 1464 AT&T WorldNet Services
9583 661 841 Sify Limited
2386 635 914 AT&T Data Communications Serv
11492 626 635 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 401 466 Citizens Utilities
5668 387 498 CenturyTel Internet Holdings,
702 373 591 UUNET - Commercial IP service
1239 365 848 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
701 282 972 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:40 12:1628 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 58:105 59:106 60:169
61:762 62:810 63:1887 64:2924 65:2133 66:2960
67:594 68:694 69:1316 70:256 71:38 72:499
73:10 80:686 81:595 82:503 83:334 84:324
85:392 86:240 87:120 125:141 128:137 129:167
130:101 131:304 132:35 133:1 134:151 135:44
136:163 137:62 138:177 139:92 140:444 141:139
142:403 143:146 144:225 145:39 146:299 147:135
148:351 149:189 150:109 151:71 152:116 153:97
154:6 155:183 156:90 157:119 158:151 159:176
160:87 161:74 162:246 163:176 164:167 165:182
166:146 167:236 168:471 169:142 170:311 171:12
192:5724 193:3341 194:2454 195:1689 196:720 198:3899
199:3274 200:4316 201:474 202:6356 203:6618 204:3820
205:2112 206:2402 207:2936 208:2026 209:3439 210:1833
211:780 212:1237 213:1383 214:313 215:40 216:3779
217:1164 218:227 219:127 220:581 221:335 222:129
End of report