Routing Table Report 00:00 GMT Thu 27 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/2007/09/27
Analysis Summary
----------------
BGP routing table entries examined: 239331
Prefixes after maximum aggregation: 121815
Deaggregation factor: 1.96
Unique aggregates announced to Internet: 113158
Total ASes present in the Internet Routing Table: 26367
Prefixes per ASN: 9.08
Origin-only ASes present in the Internet Routing Table: 22779
Origin ASes announcing only one prefix: 11126
Transit ASes present in the Internet Routing Table: 3588
Transit-only ASes present in the Internet Routing Table: 87
Average AS path length visible in the Internet Routing Table: 3.8
Max AS path length visible: 29
Max AS path prepend of ASN (23775) 25
Prefixes from unregistered ASNs in the Routing Table: 43
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: 1786809148
Equivalent to 106 /8s, 128 /16s and 139 /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: 127443
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 57802
Total APNIC prefixes after maximum aggregation: 21205
APNIC Deaggregation factor: 2.73
Prefixes being announced from the APNIC address blocks: 54636
Unique aggregates announced from the APNIC address blocks: 22787
APNIC Region origin ASes present in the Internet Routing Table: 3072
APNIC Prefixes per ASN: 17.79
APNIC Region origin ASes announcing only one prefix: 804
APNIC Region transit ASes present in the Internet Routing Table: 481
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 29
Number of APNIC addresses announced to Internet: 319581620
Equivalent to 19 /8s, 12 /16s and 109 /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: 111700
Total ARIN prefixes after maximum aggregation: 63671
ARIN Deaggregation factor: 1.75
Prefixes being announced from the ARIN address blocks: 82181
Unique aggregates announced from the ARIN address blocks: 32039
ARIN Region origin ASes present in the Internet Routing Table: 11856
ARIN Prefixes per ASN: 6.93
ARIN Region origin ASes announcing only one prefix: 4531
ARIN Region transit ASes present in the Internet Routing Table: 1158
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 346107296
Equivalent to 20 /8s, 161 /16s and 45 /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: 49922
Total RIPE prefixes after maximum aggregation: 31373
RIPE Deaggregation factor: 1.59
Prefixes being announced from the RIPE address blocks: 46290
Unique aggregates announced from the RIPE address blocks: 29919
RIPE Region origin ASes present in the Internet Routing Table: 10277
RIPE Prefixes per ASN: 4.50
RIPE Region origin ASes announcing only one prefix: 5449
RIPE Region transit ASes present in the Internet Routing Table: 1700
Average RIPE Region AS path length visible: 3.8
Max RIPE Region AS path length visible: 27
Number of RIPE addresses announced to Internet: 329415104
Equivalent to 19 /8s, 162 /16s and 121 /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: 17084
Total LACNIC prefixes after maximum aggregation: 4496
LACNIC Deaggregation factor: 3.80
Prefixes being announced from the LACNIC address blocks: 15178
Unique aggregates announced from the LACNIC address blocks: 8155
LACNIC Region origin ASes present in the Internet Routing Table: 868
LACNIC Prefixes per ASN: 17.49
LACNIC Region origin ASes announcing only one prefix: 274
LACNIC Region transit ASes present in the Internet Routing Table: 148
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 28
Number of LACNIC addresses announced to Internet: 43132416
Equivalent to 2 /8s, 146 /16s and 38 /24s
Percentage of available LACNIC address space announced: 64.3
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: 2770
Total AfriNIC prefixes after maximum aggregation: 1050
AfriNIC Deaggregation factor: 2.64
Prefixes being announced from the AfriNIC address blocks: 2360
Unique aggregates announced from the AfriNIC address blocks: 1365
AfriNIC Region origin ASes present in the Internet Routing Table: 206
AfriNIC Prefixes per ASN: 11.46
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: 4.0
Max AfriNIC Region AS path length visible: 16
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 2741 2974 36 China Education and Research
4755 1362 383 66 Videsh Sanchar Nigam Ltd. Aut
9583 1119 81 417 Sify Limited
4134 1079 11348 295 CHINANET-BACKBONE
9498 997 532 63 BHARTI BT INTERNET LTD.
23577 925 34 793 Korea Telecom (ATM-MPLS)
17488 816 53 61 Hathway IP Over Cable Interne
4766 809 5441 321 Korea Telecom (KIX)
7545 735 159 117 TPG Internet Pty Ltd
18101 603 119 51 Reliance Infocom Ltd Internet
1221 589 1950 434 Telstra Pty Ltd
4802 579 132 148 Wantree Development
4812 547 974 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 488 780 117 CNCGROUP IP network: China169
9443 468 122 78 Primus Telecommunications
7474 458 218 269 SingTel Optus Pty Ltd
9942 421 74 111 COMindico Australia
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 490 1905 392 UUNET - Commercial IP service
24863 370 57 36 LINKdotNET AS number
8551 351 334 33 Bezeq International
9116 348 168 27 Goldenlines main autonomous s
5089 324 1658 54 NTL Group Limited
3301 320 1458 297 TeliaNet Sweden
3320 313 6035 260 Deutsche Telekom AG
6746 290 131 266 Dynamic Network Technologies,
1273 276 306 103 Cable & Wireless Deutschland
680 269 2045 257 DFN-IP service G-WiN
8866 267 62 22 Bulgarian Telecommunication C
8708 262 421 242 Romania Data Systems S.A.
3215 261 2456 98 France Telecom Transpac
8220 257 444 239 COLT Telecommunications
3352 228 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 1195 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 996 AT&T WorldNet Services
4323 1354 991 366 Time Warner Telecom
2386 1217 620 740 AT&T Data Communications Serv
11492 1147 113 17 Cable One
6478 1132 328 132 AT&T Worldnet Services
6197 1031 718 508 BellSouth Network Solutions,
18566 1028 288 9 Covad Communications
174 970 6779 848 Cogent Communications
7011 941 286 559 Citizens Utilities
701 870 6557 678 UUNET Technologies, Inc.
20115 828 760 439 Charter Communications
1239 799 2712 562 Sprint
19262 780 2765 192 Verizon Global Networks
22773 776 2149 52 Cox Communications, Inc.
209 731 3818 576 Qwest
577 704 845 205 Bell Advanced Communications
3356 665 10820 366 Level 3 Communications, LLC
5668 656 176 23 CenturyTel Internet Holdings,
6517 594 165 36 Yipes Communications, Inc.
852 589 1093 357 Telus Advanced Communications
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1362 1296 Videsh Sanchar Nigam Ltd. Aut
11492 1147 1130 Cable One
18566 1028 1019 Covad Communications
6478 1132 1000 AT&T Worldnet Services
4323 1354 988 Time Warner Telecom
9498 997 934 BHARTI BT INTERNET LTD.
4134 1079 784 CHINANET-BACKBONE
8151 994 783 UniNet S.A. de C.V.
17488 816 755 Hathway IP Over Cable Interne
22773 776 724 Cox Communications, Inc.
9583 1119 702 Sify Limited
5668 656 633 CenturyTel Internet Holdings,
7545 735 618 TPG Internet Pty Ltd
19262 780 588 Verizon Global Networks
6517 594 558 Yipes Communications, Inc.
18101 603 552 Reliance Infocom Ltd Internet
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
65016 PRIVATE 155.248.0.0/16 5483 Hungarian Telecom
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
/13:269 /14:477 /15:931 /16:9730 /17:4197 /18:6772
/19:14402 /20:17563 /21:15448 /22:20018 /23:20843 /24:125037
/25:870 /26:1143 /27:628 /28:261 /29:187 /30:266
/31:0 /32:72
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1139 1147 Cable One
6478 1131 1132 AT&T Worldnet Services
18566 1010 1028 Covad Communications
9583 963 1119 Sify Limited
4538 920 2741 China Education and Research
23577 916 925 Korea Telecom (ATM-MPLS)
2386 909 1217 AT&T Data Communications Serv
7011 831 941 Citizens Utilities
7018 823 1481 AT&T WorldNet Services
6197 784 1031 BellSouth Network Solutions,
4755 755 1362 Videsh Sanchar Nigam Ltd. Aut
9498 678 997 BHARTI BT INTERNET LTD.
17488 639 816 Hathway IP Over Cable Interne
4766 607 809 Korea Telecom (KIX)
4323 582 1354 Time Warner Telecom
19916 563 568 OLM LLC
6517 559 594 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 12:1803 13:2 15:20 16:3
17:3 18:13 20:36 24:993 25:1 32:177
33:3 38:351 40:61 41:317 43:6 44:2
47:4 52:4 55:3 56:3 57:42 58:503
59:417 60:372 61:1004 62:997 63:2021 64:3281
65:2434 66:3535 67:829 68:679 69:1986 70:469
71:118 72:1433 73:5 74:681 75:306 76:137
77:366 78:192 79:3 80:835 81:836 82:590
83:382 84:637 85:828 86:346 87:569 88:285
89:998 90:40 91:592 97:6 98:1 101:1
116:369 117:160 118:19 121:303 122:595 123:185
124:677 125:1007 128:272 129:214 130:137 131:365
132:54 133:9 134:197 135:33 136:188 137:86
138:151 139:107 140:503 141:174 142:409 143:255
144:312 145:47 146:332 147:125 148:418 149:167
150:108 151:157 152:92 153:118 154:12 155:256
156:162 157:219 158:159 159:175 160:133 161:104
162:174 163:182 164:493 165:396 166:299 167:297
168:502 169:123 170:385 171:22 172:2 189:75
190:1165 192:5768 193:3993 194:3273 195:2398 196:1028
198:3915 199:3228 200:5302 201:1219 202:7780 203:7923
204:3968 205:2005 206:2487 207:2927 208:2871 209:3500
210:2780 211:1214 212:1329 213:1495 214:421 215:45
216:4066 217:1208 218:387 219:439 220:1012 221:419
222:305
End of report