Routing Table Report 00:00 GMT Fri 28 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/2007/09/28
Analysis Summary
----------------
BGP routing table entries examined: 239772
Prefixes after maximum aggregation: 121953
Deaggregation factor: 1.97
Unique aggregates announced to Internet: 113240
Total ASes present in the Internet Routing Table: 26376
Prefixes per ASN: 9.09
Origin-only ASes present in the Internet Routing Table: 22882
Origin ASes announcing only one prefix: 11140
Transit ASes present in the Internet Routing Table: 3494
Transit-only ASes present in the Internet Routing Table: 75
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 22
Max AS path prepend of ASN (35389) 16
Prefixes from unregistered ASNs in the Routing Table: 44
Unregistered ASNs in the Routing Table: 19
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: 1787407420
Equivalent to 106 /8s, 137 /16s and 172 /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: 127713
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 57808
Total APNIC prefixes after maximum aggregation: 21246
APNIC Deaggregation factor: 2.72
Prefixes being announced from the APNIC address blocks: 54640
Unique aggregates announced from the APNIC address blocks: 22740
APNIC Region origin ASes present in the Internet Routing Table: 3070
APNIC Prefixes per ASN: 17.80
APNIC Region origin ASes announcing only one prefix: 807
APNIC Region transit ASes present in the Internet Routing Table: 476
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 319794868
Equivalent to 19 /8s, 15 /16s and 174 /24s
Percentage of available APNIC address space announced: 79.2
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: 111903
Total ARIN prefixes after maximum aggregation: 63728
ARIN Deaggregation factor: 1.76
Prefixes being announced from the ARIN address blocks: 82370
Unique aggregates announced from the ARIN address blocks: 32087
ARIN Region origin ASes present in the Internet Routing Table: 11884
ARIN Prefixes per ASN: 6.93
ARIN Region origin ASes announcing only one prefix: 4545
ARIN Region transit ASes present in the Internet Routing Table: 1148
Average ARIN Region AS path length visible: 3.1
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 346141088
Equivalent to 20 /8s, 161 /16s and 177 /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: 49946
Total RIPE prefixes after maximum aggregation: 31357
RIPE Deaggregation factor: 1.59
Prefixes being announced from the RIPE address blocks: 46326
Unique aggregates announced from the RIPE address blocks: 29953
RIPE Region origin ASes present in the Internet Routing Table: 10273
RIPE Prefixes per ASN: 4.51
RIPE Region origin ASes announcing only one prefix: 5449
RIPE Region transit ASes present in the Internet Routing Table: 1639
Average RIPE Region AS path length visible: 3.6
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 329509056
Equivalent to 19 /8s, 163 /16s and 232 /24s
Percentage of available RIPE address space announced: 75.5
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: 17275
Total LACNIC prefixes after maximum aggregation: 4550
LACNIC Deaggregation factor: 3.80
Prefixes being announced from the LACNIC address blocks: 15277
Unique aggregates announced from the LACNIC address blocks: 8194
LACNIC Region origin ASes present in the Internet Routing Table: 868
LACNIC Prefixes per ASN: 17.60
LACNIC Region origin ASes announcing only one prefix: 271
LACNIC Region transit ASes present in the Internet Routing Table: 154
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 43294208
Equivalent to 2 /8s, 148 /16s and 158 /24s
Percentage of available LACNIC address space announced: 64.5
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: 2786
Total AfriNIC prefixes after maximum aggregation: 1052
AfriNIC Deaggregation factor: 2.65
Prefixes being announced from the AfriNIC address blocks: 2372
Unique aggregates announced from the AfriNIC address blocks: 1365
AfriNIC Region origin ASes present in the Internet Routing Table: 205
AfriNIC Prefixes per ASN: 11.57
AfriNIC Region origin ASes announcing only one prefix: 68
AfriNIC Region transit ASes present in the Internet Routing Table: 36
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 7461632
Equivalent to 0 /8s, 113 /16s and 219 /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 2743 2974 36 China Education and Research
4755 1426 383 67 Videsh Sanchar Nigam Ltd. Aut
9583 1122 81 419 Sify Limited
4134 1082 11404 294 CHINANET-BACKBONE
9498 998 532 63 BHARTI BT INTERNET LTD.
23577 927 34 794 Korea Telecom (ATM-MPLS)
17488 816 53 61 Hathway IP Over Cable Interne
4766 809 5441 321 Korea Telecom (KIX)
7545 734 159 116 TPG Internet Pty Ltd
18101 603 119 51 Reliance Infocom Ltd Internet
1221 590 1950 435 Telstra Pty Ltd
4802 576 131 147 Wantree Development
4812 548 974 94 China Telecom (Shanghai)
9829 531 1313 10 BSNL National Internet Backbo
4668 517 68 10 LG-EDS Systems Inc.
17676 502 10903 63 Softbank BB Corp.
4808 489 780 118 CNCGROUP IP network: China169
9443 468 122 78 Primus Telecommunications
7474 458 218 269 SingTel Optus Pty Ltd
9942 422 75 112 COMindico Australia
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 489 1904 391 UUNET - Commercial IP service
24863 370 57 36 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 317 1457 294 TeliaNet Sweden
3320 315 6035 261 Deutsche Telekom AG
6746 289 131 265 Dynamic Network Technologies,
1273 280 306 104 Cable & Wireless Deutschland
680 269 2045 257 DFN-IP service G-WiN
8866 267 62 22 Bulgarian Telecommunication C
8708 263 421 242 Romania Data Systems S.A.
3215 262 2472 99 France Telecom Transpac
8220 254 444 237 COLT Telecommunications
3352 225 1882 40 Ibernet, Internet Access Netw
3269 223 2839 73 TELECOM ITALIA
9121 217 1442 25 TTnet Autonomous System
3300 207 172 100 AUCS Communications Services
1257 205 1179 169 SWIPnet Swedish IP Network
3292 196 1380 176 TDC Tele Danmark
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1481 10194 992 AT&T WorldNet Services
4323 1401 991 366 Time Warner Telecom
2386 1220 635 732 AT&T Data Communications Serv
11492 1152 113 17 Cable One
6478 1131 328 137 AT&T Worldnet Services
6197 1031 718 508 BellSouth Network Solutions,
18566 1028 288 9 Covad Communications
174 954 6713 832 Cogent Communications
7011 944 287 559 Citizens Utilities
701 869 6589 678 UUNET Technologies, Inc.
1239 867 2695 550 Sprint
20115 829 762 440 Charter Communications
19262 778 2750 187 Verizon Global Networks
22773 778 2149 52 Cox Communications, Inc.
577 714 845 205 Bell Advanced Communications
209 713 3777 557 Qwest
3356 673 10820 372 Level 3 Communications, LLC
5668 656 176 23 CenturyTel Internet Holdings,
6517 588 165 37 Yipes Communications, Inc.
852 587 1077 355 Telus Advanced Communications
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1426 1359 Videsh Sanchar Nigam Ltd. Aut
11492 1152 1135 Cable One
4323 1401 1035 Time Warner Telecom
18566 1028 1019 Covad Communications
6478 1131 994 AT&T Worldnet Services
9498 998 935 BHARTI BT INTERNET LTD.
8151 999 796 UniNet S.A. de C.V.
4134 1082 788 CHINANET-BACKBONE
17488 816 755 Hathway IP Over Cable Interne
22773 778 726 Cox Communications, Inc.
9583 1122 703 Sify Limited
5668 656 633 CenturyTel Internet Holdings,
7545 734 618 TPG Internet Pty Ltd
19262 778 591 Verizon Global Networks
18101 603 552 Reliance Infocom Ltd Internet
6517 588 551 Yipes Communications, Inc.
15270 580 542 PaeTec.net -a division of Pae
6197 1031 523 BellSouth Network Solutions,
9829 531 521 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
65530 PRIVATE 192.147.68.0/24 2901 New Mexico Technet
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
65001 PRIVATE 216.240.208.0/20 6325 Illinois Century Net
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
/13:270 /14:478 /15:932 /16:9732 /17:4199 /18:6787
/19:14448 /20:17603 /21:15472 /22:20040 /23:20845 /24:125258
/25:875 /26:1148 /27:639 /28:282 /29:191 /30:283
/31:0 /32:73
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 964 1122 Sify Limited
4538 920 2743 China Education and Research
23577 918 927 Korea Telecom (ATM-MPLS)
2386 911 1220 AT&T Data Communications Serv
7011 834 944 Citizens Utilities
7018 820 1481 AT&T WorldNet Services
4755 796 1426 Videsh Sanchar Nigam Ltd. Aut
6197 784 1031 BellSouth Network Solutions,
9498 680 998 BHARTI BT INTERNET LTD.
17488 639 816 Hathway IP Over Cable Interne
4766 607 809 Korea Telecom (KIX)
4323 597 1401 Time Warner Telecom
19916 563 568 OLM LLC
6517 552 588 Yipes Communications, Inc.
15270 544 580 PaeTec.net -a division of Pae
5668 521 656 CenturyTel Internet Holdings,
4668 507 517 LG-EDS Systems Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:83 12:1808 13:2 15:20 16:3
17:3 18:13 20:36 24:995 25:1 32:177
33:3 38:352 40:61 41:318 43:6 44:2
47:4 52:4 55:3 56:3 57:42 58:501
59:424 60:372 61:1002 62:998 63:2008 64:3284
65:2432 66:3520 67:831 68:680 69:1988 70:470
71:118 72:1422 73:5 74:682 75:307 76:135
77:383 78:194 79:3 80:834 81:845 82:592
83:381 84:639 85:821 86:345 87:564 88:288
89:1000 90:40 91:595 97:6 98:2 101:1
116:366 117:159 118:11 121:304 122:612 123:184
124:678 125:1009 128:272 129:213 130:137 131:365
132:58 133:9 134:196 135:33 136:188 137:86
138:156 139:107 140:513 141:174 142:409 143:254
144:305 145:47 146:332 147:128 148:469 149:167
150:112 151:157 152:92 153:118 154:12 155:256
156:162 157:220 158:159 159:175 160:136 161:103
162:174 163:183 164:493 165:398 166:299 167:297
168:504 169:123 170:387 171:22 172:2 189:75
190:1168 192:5776 193:3991 194:3271 195:2396 196:1032
198:3902 199:3232 200:5318 201:1219 202:7739 203:7920
204:3966 205:2011 206:2495 207:2990 208:2884 209:3508
210:2783 211:1214 212:1328 213:1527 214:419 215:45
216:4097 217:1203 218:387 219:451 220:1004 221:419
222:304
End of report