Routing Table Report 04:00 +10GMT Wed 28 Dec, 2005
Analysis Summary
----------------
BGP routing table entries examined: 177182
Prefixes after maximum aggregation: 99698
Unique aggregates announced to Internet: 85885
Total ASes present in the Internet Routing Table: 21242
Origin-only ASes present in the Internet Routing Table: 18476
Origin ASes announcing only one prefix: 8753
Transit ASes present in the Internet Routing Table: 2766
Transit-only ASes present in the Internet Routing Table: 77
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: 13
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1492093504
Equivalent to 88 /8s, 239 /16s and 138 /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: 85173
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 37094
Total APNIC prefixes after maximum aggregation: 15782
Prefixes being announced from the APNIC address blocks: 34836
Unique aggregates announced from the APNIC address blocks: 17071
APNIC Region origin ASes present in the Internet Routing Table: 2451
APNIC Region origin ASes announcing only one prefix: 701
APNIC Region transit ASes present in the Internet Routing Table: 376
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 208729024
Equivalent to 12 /8s, 112 /16s and 243 /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: 93334
Total ARIN prefixes after maximum aggregation: 56114
Prefixes being announced from the ARIN address blocks: 72705
Unique aggregates announced from the ARIN address blocks: 27807
ARIN Region origin ASes present in the Internet Routing Table: 10401
ARIN Region origin ASes announcing only one prefix: 3865
ARIN Region transit ASes present in the Internet Routing Table: 959
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 280944768
Equivalent to 16 /8s, 190 /16s and 224 /24s
Percentage of available ARIN address space announced: 69.8
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: 34762
Total RIPE prefixes after maximum aggregation: 23547
Prefixes being announced from the RIPE address blocks: 31761
Unique aggregates announced from the RIPE address blocks: 21304
RIPE Region origin ASes present in the Internet Routing Table: 7504
RIPE Region origin ASes announcing only one prefix: 3929
RIPE Region transit ASes present in the Internet Routing Table: 1239
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 228581184
Equivalent to 13 /8s, 159 /16s and 223 /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: 10148
Total LACNIC prefixes after maximum aggregation: 3390
Prefixes being announced from the LACNIC address blocks: 8389
Unique aggregates announced from the LACNIC address blocks: 4776
LACNIC Region origin ASes present in the Internet Routing Table: 663
LACNIC Region origin ASes announcing only one prefix: 210
LACNIC Region transit ASes present in the Internet Routing Table: 126
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 22
Number of LACNIC addresses announced to Internet: 23281664
Equivalent to 1 /8s, 99 /16s and 64 /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: 865
Prefixes being announced from the AfriNIC address blocks: 1186
Unique aggregates announced from the AfriNIC address blocks: 808
AfriNIC Region origin ASes present in the Internet Routing Table: 146
AfriNIC Region origin ASes announcing only one prefix: 48
AfriNIC Region transit ASes present in the Internet Routing Table: 25
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2897408
Equivalent to 0 /8s, 44 /16s and 54 /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 997 6469 206 CHINANET-BACKBONE
9583 825 77 12 Sify Limited
4755 762 259 72 Videsh Sanchar Nigam Ltd. Aut
4766 671 3928 290 Korea Telecom (KIX)
1221 665 1364 476 Telstra Pty Ltd
7545 514 108 70 TPG Internet Pty Ltd
17676 475 6853 99 Softbank BB Corp.
17488 436 26 9 Hathway IP Over Cable Interne
9498 414 211 69 BHARTI BT INTERNET LTD.
9443 399 89 85 Primus Telecommunications
4802 348 74 159 Wantree Development
2907 338 1763 315 SINET Japan
9929 329 217 49 China Netcom Corp.
7474 325 226 223 SingTel Optus Pty Ltd
17557 310 25 161 Pakistan Telecom
18101 289 68 19 Reliance Infocom Ltd Internet
17974 285 69 23 PT TELEKOMUNIKASI INDONESIA
4780 282 226 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 1457 6312 956 AT&T WorldNet Services
4323 1194 722 235 Time Warner Telecom
174 1051 5826 968 Cogent Communications
721 1030 21938 309 DLA Systems Automation Center
701 974 8118 819 UUNET Technologies, Inc.
6197 969 434 505 BellSouth Network Solutions,
2386 914 517 687 AT&T Data Communications Serv
18566 887 240 7 Covad Communications
1239 846 2803 601 Sprint
209 660 3606 526 Qwest
20115 651 534 338 Charter Communications
11492 634 89 11 Cable One
22773 594 1477 29 Cox Communications, Inc.
19262 586 1681 145 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
702 590 1953 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 227 486 220 Song Networks
8708 223 274 207 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
8866 169 37 11 Bulgarian Telecommunication C
5400 167 328 136 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 157 169 91 AUCS Communications Services
12479 156 322 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 495 776 211 UniNet S.A. de C.V.
22047 380 141 43 VTR PUNTO NET S.A.
16814 295 18 7 NSS, S.A.
11172 291 108 77 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 149 118 20 Telefonica Del Peru
11664 138 22 13 Keytech SA
11556 130 64 3 Cable-Wireless Panama
19169 127 8 25 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
14522 102 12 8 SatNet S.A.
11311 99 8 10 Sinectis S.A.
18822 98 7 10 TELEFONICA MANQUEHUE
4270 94 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 145 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 71 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 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
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 887 880 Covad Communications
9583 825 813 Sify Limited
4134 997 791 CHINANET-BACKBONE
721 1030 721 DLA Systems Automation Center
4755 762 690 Videsh Sanchar Nigam Ltd. Aut
11492 634 623 Cable One
22773 594 565 Cox Communications, Inc.
19916 563 509 OLM LLC
855 562 497 Canadian Research Network
5668 498 474 CenturyTel Internet Holdings,
6197 969 464 BellSouth Network Solutions,
7545 514 444 TPG Internet Pty Ltd
19262 586 441 Verizon Global Networks
17488 436 427 Hathway IP Over Cable Interne
3602 523 417 Sprint Canada, Inc.
4766 671 381 Korea Telecom (KIX)
17676 475 376 Softbank BB Corp.
6467 405 359 E.Spire Communications, Inc.
9498 414 345 BHARTI BT INTERNET LTD.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65000 PRIVATE 38.117.11.0/24 36383 *
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
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:
65000 PRIVATE 216.82.107.0/24 36383 *
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 /12:86
/13:194 /14:346 /15:667 /16:8630 /17:2939 /18:4941
/19:11133 /20:12280 /21:10375 /22:13590 /23:14711 /24:96272
/25:336 /26:246 /27:195 /28:63 /29:27 /30:55
/31:3 /32:41
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 871 887 Covad Communications
6197 784 969 BellSouth Network Solutions,
7018 721 1457 AT&T WorldNet Services
9583 648 825 Sify Limited
2386 637 914 AT&T Data Communications Serv
11492 625 634 Cable One
4323 571 1194 Time Warner Telecom
19916 557 563 OLM LLC
4766 476 671 Korea Telecom (KIX)
855 434 562 Canadian Research Network
7011 401 466 Citizens Utilities
5668 387 498 CenturyTel Internet Holdings,
702 372 590 UUNET - Commercial IP service
1239 365 846 Sprint
6198 355 497 BellSouth Network Solutions,
6517 326 352 Yipes Communications, Inc.
15270 326 353 PaeTec.net -a division of Pae
22773 308 594 Cox Communications, Inc.
13609 289 332 Choice One Communications Inc
701 282 974 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:40 12:1629 13:1 15:11 16:3
17:3 18:3 20:42 24:711 25:1 30:2
32:67 38:187 40:54 44:3 47:3 52:4
55:1 56:3 57:33 58:106 59:121 60:174
61:758 62:785 63:1888 64:2914 65:2134 66:2963
67:593 68:695 69:1317 70:259 71:39 72:502
73:10 80:680 81:597 82:506 83:338 84:323
85:407 86:242 87:125 125:142 128:141 129:167
130:101 131:305 132:33 133:1 134:151 135:45
136:163 137:62 138:178 139:92 140:446 141:139
142:403 143:146 144:226 145:39 146:308 147:135
148:349 149:189 150:108 151:71 152:115 153:97
154:6 155:182 156:90 157:119 158:151 159:176
160:86 161:74 162:246 163:178 164:167 165:183
166:145 167:237 168:462 169:142 170:311 171:12
192:5717 193:3338 194:2453 195:1710 196:712 198:3896
199:3271 200:4327 201:502 202:6391 203:6678 204:3819
205:2106 206:2391 207:2926 208:2026 209:3440 210:1829
211:782 212:1241 213:1399 214:313 215:40 216:3805
217:1163 218:227 219:127 220:589 221:323 222:132
End of report