Routing Table Report 00:00 GMT Wed 26 Sep, 2007
NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/oix-data/2007/09/26
Analysis Summary
----------------
BGP routing table entries examined: 239090
Prefixes after maximum aggregation: 121457
Deaggregation factor: 1.97
Unique aggregates announced to Internet: 112047
Total ASes present in the Internet Routing Table: 26337
Prefixes per ASN: 9.08
Origin-only ASes present in the Internet Routing Table: 22875
Origin ASes announcing only one prefix: 11120
Transit ASes present in the Internet Routing Table: 3462
Transit-only ASes present in the Internet Routing Table: 78
Average AS path length visible in the Internet Routing Table: 3.7
Max AS path length visible: 24
Max AS path prepend of ASN (35389) 16
Prefixes from unregistered ASNs in the Routing Table: 42
Unregistered ASNs in the Routing Table: 18
Prefixes from 32-bit ASNs in the Routing Table: 10
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1785462844
Equivalent to 106 /8s, 108 /16s and 0 /24s
Percentage of available address space announced: 48.2
Percentage of allocated address space announced: 63.1
Percentage of available address space allocated: 76.4
Total number of prefixes smaller than registry allocations: 127299
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 57775
Total APNIC prefixes after maximum aggregation: 20800
APNIC Deaggregation factor: 2.78
Prefixes being announced from the APNIC address blocks: 54614
Unique aggregates announced from the APNIC address blocks: 21683
APNIC Region origin ASes present in the Internet Routing Table: 3059
APNIC Prefixes per ASN: 17.85
APNIC Region origin ASes announcing only one prefix: 798
APNIC Region transit ASes present in the Internet Routing Table: 474
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 24
Number of APNIC addresses announced to Internet: 319091124
Equivalent to 19 /8s, 4 /16s and 241 /24s
Percentage of available APNIC address space announced: 79.0
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, 116/6, 120/6, 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: 111610
Total ARIN prefixes after maximum aggregation: 63726
ARIN Deaggregation factor: 1.75
Prefixes being announced from the ARIN address blocks: 82124
Unique aggregates announced from the ARIN address blocks: 32051
ARIN Region origin ASes present in the Internet Routing Table: 11847
ARIN Prefixes per ASN: 6.93
ARIN Region origin ASes announcing only one prefix: 4517
ARIN Region transit ASes present in the Internet Routing Table: 1119
Average ARIN Region AS path length visible: 3.1
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 346034848
Equivalent to 20 /8s, 160 /16s and 18 /24s
Percentage of available ARIN address space announced: 76.4
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, 39936-40959
ARIN Address Blocks 24/8, 63/8, 64/5, 72/6, 76/8, 96/6, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 49859
Total RIPE prefixes after maximum aggregation: 31352
RIPE Deaggregation factor: 1.59
Prefixes being announced from the RIPE address blocks: 46216
Unique aggregates announced from the RIPE address blocks: 29924
RIPE Region origin ASes present in the Internet Routing Table: 10279
RIPE Prefixes per ASN: 4.50
RIPE Region origin ASes announcing only one prefix: 5458
RIPE Region transit ASes present in the Internet Routing Table: 1644
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 328887488
Equivalent to 19 /8s, 154 /16s and 108 /24s
Percentage of available RIPE address space announced: 75.4
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
40960-45055
RIPE Address Blocks 62/8, 77/8, 78/7, 80/4, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 17023
Total LACNIC prefixes after maximum aggregation: 4504
LACNIC Deaggregation factor: 3.78
Prefixes being announced from the LACNIC address blocks: 15157
Unique aggregates announced from the LACNIC address blocks: 8148
LACNIC Region origin ASes present in the Internet Routing Table: 869
LACNIC Prefixes per ASN: 17.44
LACNIC Region origin ASes announcing only one prefix: 279
LACNIC Region transit ASes present in the Internet Routing Table: 145
Average LACNIC Region AS path length visible: 4.3
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 43020032
Equivalent to 2 /8s, 144 /16s and 111 /24s
Percentage of available LACNIC address space announced: 64.1
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: 2771
Total AfriNIC prefixes after maximum aggregation: 1055
AfriNIC Deaggregation factor: 2.63
Prefixes being announced from the AfriNIC address blocks: 2367
Unique aggregates announced from the AfriNIC address blocks: 1361
AfriNIC Region origin ASes present in the Internet Routing Table: 204
AfriNIC Prefixes per ASN: 11.60
AfriNIC Region origin ASes announcing only one prefix: 68
AfriNIC Region transit ASes present in the Internet Routing Table: 37
Average AfriNIC Region AS path length visible: 3.9
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 7458304
Equivalent to 0 /8s, 113 /16s and 206 /24s
Percentage of available AfriNIC address space announced: 22.2
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
4538 2740 2974 36 China Education and Research
4755 1360 382 66 Videsh Sanchar Nigam Ltd. Aut
9583 1133 108 16 Sify Limited
4134 1077 11220 293 CHINANET-BACKBONE
9498 992 532 62 BHARTI BT INTERNET LTD.
23577 924 34 793 Korea Telecom (ATM-MPLS)
17488 812 53 60 Hathway IP Over Cable Interne
4766 809 5441 321 Korea Telecom (KIX)
7545 731 159 117 TPG Internet Pty Ltd
18101 601 119 50 Reliance Infocom Ltd Internet
1221 593 1950 436 Telstra Pty Ltd
4802 580 132 148 Wantree Development
4812 547 974 94 China Telecom (Shanghai)
9829 530 1312 9 BSNL National Internet Backbo
4668 517 68 10 LG-EDS Systems Inc.
17676 502 10903 63 Softbank BB Corp.
4808 484 775 114 CNCGROUP IP network: China169
9443 468 122 78 Primus Telecommunications
7474 460 218 271 SingTel Optus Pty Ltd
9942 429 75 112 COMindico Australia
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 491 1921 393 UUNET - Commercial IP service
24863 371 58 37 LINKdotNET AS number
8551 351 334 33 Bezeq International
9116 349 168 27 Goldenlines main autonomous s
5089 324 1658 54 NTL Group Limited
3301 319 1457 296 TeliaNet Sweden
3320 313 6035 260 Deutsche Telekom AG
6746 290 131 266 Dynamic Network Technologies,
1273 279 306 104 Cable & Wireless Deutschland
680 269 2045 257 DFN-IP service G-WiN
8866 268 62 22 Bulgarian Telecommunication C
8708 263 421 242 Romania Data Systems S.A.
3215 261 2456 98 France Telecom Transpac
8220 255 440 237 COLT Telecommunications
3352 228 1882 40 Ibernet, Internet Access Netw
3269 223 2839 73 TELECOM ITALIA
9121 217 1442 25 TTnet Autonomous System
1257 206 1195 171 SWIPnet Swedish IP Network
3300 206 172 99 AUCS Communications Services
3292 196 1380 176 TDC Tele Danmark
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1484 10211 992 AT&T WorldNet Services
4323 1348 991 362 Time Warner Telecom
2386 1217 620 740 AT&T Data Communications Serv
11492 1152 113 17 Cable One
6478 1131 328 136 AT&T Worldnet Services
6197 1032 718 508 BellSouth Network Solutions,
18566 1028 288 9 Covad Communications
174 963 6779 850 Cogent Communications
7011 939 285 557 Citizens Utilities
701 875 6573 683 UUNET Technologies, Inc.
20115 828 760 439 Charter Communications
1239 803 2713 563 Sprint
19262 779 2763 191 Verizon Global Networks
22773 775 2149 51 Cox Communications, Inc.
209 742 3818 585 Qwest
577 713 829 204 Bell Advanced Communications
3356 666 10820 368 Level 3 Communications, LLC
5668 655 176 23 CenturyTel Internet Holdings,
6517 593 165 36 Yipes Communications, Inc.
852 590 1093 358 Telus Advanced Communications
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1360 1294 Videsh Sanchar Nigam Ltd. Aut
11492 1152 1135 Cable One
9583 1133 1117 Sify Limited
18566 1028 1019 Covad Communications
6478 1131 995 AT&T Worldnet Services
4323 1348 986 Time Warner Telecom
9498 992 930 BHARTI BT INTERNET LTD.
8151 1005 793 UniNet S.A. de C.V.
4134 1077 784 CHINANET-BACKBONE
17488 812 752 Hathway IP Over Cable Interne
22773 775 724 Cox Communications, Inc.
5668 655 632 CenturyTel Internet Holdings,
7545 731 614 TPG Internet Pty Ltd
19262 779 588 Verizon Global Networks
6517 593 557 Yipes Communications, Inc.
18101 601 551 Reliance Infocom Ltd Internet
15270 580 542 PaeTec.net -a division of Pae
6197 1032 524 BellSouth Network Solutions,
9829 530 521 BSNL National Internet Backbo
19916 568 517 OLM LLC
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
64250 RESERVED 59.144.44.0/24 9498 BHARTI BT INTERNET L
65100 PRIVATE 80.10.250.0/24 3215 France Telecom Trans
64250 RESERVED 122.167.64.0/19 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.96.0/20 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.112.0/21 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.176.0/21 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.188.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.192.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.196.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.200.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.204.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.208.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.212.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.216.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.220.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.240.0/23 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.242.0/23 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.244.0/23 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.246.0/23 9498 BHARTI BT INTERNET L
65100 PRIVATE 129.6.112.0/24 10886 University of Maryla
65500 PRIVATE 192.239.84.0/24 10886 University of Maryla
65100 PRIVATE 193.253.152.0/24 3215 France Telecom Trans
64513 PRIVATE 194.149.101.192/28 6721 The Terminal Bar: In
64527 PRIVATE 194.149.115.64/28 6721 The Terminal Bar: In
64532 PRIVATE 195.22.48.64/27 6721 The Terminal Bar: In
64519 PRIVATE 195.47.33.160/27 6721 The Terminal Bar: In
64519 PRIVATE 195.47.33.192/28 6721 The Terminal Bar: In
64513 PRIVATE 195.47.40.128/26 6721 The Terminal Bar: In
64513 PRIVATE 195.47.40.128/25 6721 The Terminal Bar: In
64513 PRIVATE 195.47.40.192/26 6721 The Terminal Bar: In
64540 PRIVATE 195.47.75.48/28 6721 The Terminal Bar: In
64516 PRIVATE 195.47.88.128/25 6721 The Terminal Bar: In
65000 PRIVATE 195.47.102.0/25 6721 The Terminal Bar: In
65517 PRIVATE 198.32.176.0/24 293 Energy Sciences Netw
65000 PRIVATE 199.133.62.0/24 10886 University of Maryla
65000 PRIVATE 199.133.63.0/24 10886 University of Maryla
65501 PRIVATE 202.153.21.0/24 23666 PT Sistelindo Mitral
64588 PRIVATE 207.107.179.0/24 2491 fONOROLA
64512 PRIVATE 217.134.164.0/22 5428 Energis Communicatio
64512 PRIVATE 217.134.168.0/21 5428 Energis Communicatio
64512 PRIVATE 217.134.176.0/21 5428 Energis Communicatio
64512 PRIVATE 217.134.184.0/22 5428 Energis Communicatio
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
192.0.2.0/24 2854 RoSprint AS (Global One Russi
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
101.13.13.0/24 8764 LIETUVOS-TELEKOMAS Autonomous
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
172.33.1.0/24 7018 AT&T WorldNet Services
192.0.10.0/24 9498 BHARTI BT INTERNET LTD.
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
192.153.136.0/21 721 DLA Systems Automation Center
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 /9:9 /10:16 /11:37 /12:136
/13:267 /14:477 /15:931 /16:9725 /17:4200 /18:6764
/19:14419 /20:17537 /21:15440 /22:19999 /23:20847 /24:124870
/25:848 /26:1143 /27:627 /28:257 /29:185 /30:265
/31:0 /32:72
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1144 1152 Cable One
6478 1130 1131 AT&T Worldnet Services
18566 1010 1028 Covad Communications
9583 968 1133 Sify Limited
4538 920 2740 China Education and Research
23577 915 924 Korea Telecom (ATM-MPLS)
2386 909 1217 AT&T Data Communications Serv
7011 829 939 Citizens Utilities
7018 829 1484 AT&T WorldNet Services
6197 785 1032 BellSouth Network Solutions,
4755 755 1360 Videsh Sanchar Nigam Ltd. Aut
9498 677 992 BHARTI BT INTERNET LTD.
17488 635 812 Hathway IP Over Cable Interne
4766 607 809 Korea Telecom (KIX)
4323 580 1348 Time Warner Telecom
19916 563 568 OLM LLC
6517 558 593 Yipes Communications, Inc.
15270 544 580 PaeTec.net -a division of Pae
5668 520 655 CenturyTel Internet Holdings,
4668 507 517 LG-EDS Systems Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:83 12:1803 13:2 15:20 16:3
17:3 18:13 20:37 24:995 25:1 32:177
33:3 38:350 40:61 41:316 43:6 44:2
47:4 52:4 55:3 56:3 57:42 58:520
59:416 60:373 61:1004 62:999 63:2019 64:3279
65:2431 66:3525 67:831 68:679 69:1990 70:469
71:117 72:1435 73:5 74:679 75:306 76:131
77:365 78:159 79:3 80:834 81:837 82:591
83:382 84:641 85:829 86:344 87:569 88:285
89:1003 90:24 91:581 97:6 101:1 116:363
117:160 118:19 121:305 122:612 123:194 124:675
125:1006 128:271 129:214 130:137 131:367 132:53
133:9 134:196 135:34 136:188 137:87 138:155
139:107 140:501 141:174 142:402 143:254 144:310
145:47 146:331 147:125 148:418 149:167 150:108
151:166 152:92 153:118 154:4 155:255 156:162
157:205 158:160 159:168 160:134 161:103 162:175
163:183 164:493 165:397 166:299 167:296 168:502
169:123 170:373 171:22 172:2 189:74 190:1155
192:5775 193:3979 194:3273 195:2401 196:1029 198:3912
199:3228 200:5313 201:1211 202:7744 203:7903 204:3965
205:2010 206:2470 207:2923 208:2869 209:3510 210:2783
211:1217 212:1306 213:1525 214:409 215:44 216:4039
217:1208 218:388 219:440 220:1019 221:420 222:306
End of report