Routing Table Report 00:00 GMT Sun 30 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/2007/09/30
Analysis Summary
----------------
BGP routing table entries examined: 239814
Prefixes after maximum aggregation: 121969
Deaggregation factor: 1.97
Unique aggregates announced to Internet: 113381
Total ASes present in the Internet Routing Table: 26386
Prefixes per ASN: 9.09
Origin-only ASes present in the Internet Routing Table: 22801
Origin ASes announcing only one prefix: 11141
Transit ASes present in the Internet Routing Table: 3585
Transit-only ASes present in the Internet Routing Table: 92
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 29
Max AS path prepend of ASN (43329) 20
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: 12
Number of addresses announced to Internet: 1788814092
Equivalent to 106 /8s, 159 /16s and 35 /24s
Percentage of available address space announced: 48.3
Percentage of allocated address space announced: 63.2
Percentage of available address space allocated: 76.4
Total number of prefixes smaller than registry allocations: 127802
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 57822
Total APNIC prefixes after maximum aggregation: 21209
APNIC Deaggregation factor: 2.73
Prefixes being announced from the APNIC address blocks: 54657
Unique aggregates announced from the APNIC address blocks: 22792
APNIC Region origin ASes present in the Internet Routing Table: 3068
APNIC Prefixes per ASN: 17.82
APNIC Region origin ASes announcing only one prefix: 805
APNIC Region transit ASes present in the Internet Routing Table: 482
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 24
Number of APNIC addresses announced to Internet: 320788660
Equivalent to 19 /8s, 30 /16s and 216 /24s
Percentage of available APNIC address space announced: 79.5
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, 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: 111916
Total ARIN prefixes after maximum aggregation: 63750
ARIN Deaggregation factor: 1.76
Prefixes being announced from the ARIN address blocks: 82319
Unique aggregates announced from the ARIN address blocks: 32153
ARIN Region origin ASes present in the Internet Routing Table: 11856
ARIN Prefixes per ASN: 6.94
ARIN Region origin ASes announcing only one prefix: 4532
ARIN Region transit ASes present in the Internet Routing Table: 1149
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 346373792
Equivalent to 20 /8s, 165 /16s and 62 /24s
Percentage of available ARIN address space announced: 76.5
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: 49999
Total RIPE prefixes after maximum aggregation: 31413
RIPE Deaggregation factor: 1.59
Prefixes being announced from the RIPE address blocks: 46385
Unique aggregates announced from the RIPE address blocks: 29942
RIPE Region origin ASes present in the Internet Routing Table: 10295
RIPE Prefixes per ASN: 4.51
RIPE Region origin ASes announcing only one prefix: 5459
RIPE Region transit ASes present in the Internet Routing Table: 1699
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 329564096
Equivalent to 19 /8s, 164 /16s and 191 /24s
Percentage of available RIPE address space announced: 75.6
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: 17221
Total LACNIC prefixes after maximum aggregation: 4522
LACNIC Deaggregation factor: 3.81
Prefixes being announced from the LACNIC address blocks: 15265
Unique aggregates announced from the LACNIC address blocks: 8216
LACNIC Region origin ASes present in the Internet Routing Table: 867
LACNIC Prefixes per ASN: 17.61
LACNIC Region origin ASes announcing only one prefix: 274
LACNIC Region transit ASes present in the Internet Routing Table: 150
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 29
Number of LACNIC addresses announced to Internet: 43548864
Equivalent to 2 /8s, 152 /16s and 128 /24s
Percentage of available LACNIC address space announced: 64.9
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: 2802
Total AfriNIC prefixes after maximum aggregation: 1055
AfriNIC Deaggregation factor: 2.66
Prefixes being announced from the AfriNIC address blocks: 2375
Unique aggregates announced from the AfriNIC address blocks: 1365
AfriNIC Region origin ASes present in the Internet Routing Table: 207
AfriNIC Prefixes per ASN: 11.47
AfriNIC Region origin ASes announcing only one prefix: 71
AfriNIC Region transit ASes present in the Internet Routing Table: 35
Average AfriNIC Region AS path length visible: 4.4
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 2745 2974 36 China Education and Research
4755 1426 383 67 Videsh Sanchar Nigam Ltd. Aut
9583 1116 80 418 Sify Limited
4134 1099 11516 298 CHINANET-BACKBONE
9498 1002 533 66 BHARTI BT INTERNET LTD.
23577 929 34 796 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 602 119 50 Reliance Infocom Ltd Internet
1221 589 1950 435 Telstra Pty Ltd
4802 577 131 148 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 490 789 117 CNCGROUP IP network: China169
9443 468 122 78 Primus Telecommunications
7474 457 218 269 SingTel Optus Pty Ltd
9942 420 74 110 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 350 334 33 Bezeq International
9116 350 168 27 Goldenlines main autonomous s
5089 324 1658 54 NTL Group Limited
3301 318 1457 295 TeliaNet Sweden
3320 312 6035 259 Deutsche Telekom AG
6746 290 131 266 Dynamic Network Technologies,
1273 272 306 104 Cable & Wireless Deutschland
680 269 2045 257 DFN-IP service G-WiN
8866 267 62 22 Bulgarian Telecommunication C
3215 262 2472 99 France Telecom Transpac
8708 262 421 242 Romania Data Systems S.A.
8220 256 444 238 COLT Telecommunications
3352 230 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 1483 10226 990 AT&T WorldNet Services
4323 1398 991 363 Time Warner Telecom
2386 1218 621 742 AT&T Data Communications Serv
11492 1153 113 12 Cable One
6478 1131 328 137 AT&T Worldnet Services
6197 1032 718 508 BellSouth Network Solutions,
18566 1028 288 9 Covad Communications
174 968 6779 845 Cogent Communications
7011 944 287 559 Citizens Utilities
701 868 6572 676 UUNET Technologies, Inc.
20115 830 762 441 Charter Communications
1239 804 2721 562 Sprint
22773 780 2149 52 Cox Communications, Inc.
19262 776 2749 185 Verizon Global Networks
209 732 3802 577 Qwest
577 709 845 202 Bell Advanced Communications
3356 673 10820 372 Level 3 Communications, LLC
5668 656 176 23 CenturyTel Internet Holdings,
852 598 1096 363 Telus Advanced Communications
6517 587 165 36 Yipes Communications, Inc.
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1426 1359 Videsh Sanchar Nigam Ltd. Aut
11492 1153 1141 Cable One
4323 1398 1035 Time Warner Telecom
18566 1028 1019 Covad Communications
6478 1131 994 AT&T Worldnet Services
9498 1002 936 BHARTI BT INTERNET LTD.
8151 1020 806 UniNet S.A. de C.V.
4134 1099 801 CHINANET-BACKBONE
17488 816 755 Hathway IP Over Cable Interne
22773 780 728 Cox Communications, Inc.
9583 1116 698 Sify Limited
5668 656 633 CenturyTel Internet Holdings,
7545 735 618 TPG Internet Pty Ltd
19262 776 591 Verizon Global Networks
18101 602 552 Reliance Infocom Ltd Internet
6517 587 551 Yipes Communications, Inc.
15270 580 542 PaeTec.net -a division of Pae
6197 1032 524 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
64520 PRIVATE 172.11.12.0/24 1803 SPRINT
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
172.11.12.0/24 64520 PRIVATE ASN
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 /14:480 /15:938 /16:9743 /17:4201 /18:6782
/19:14465 /20:17621 /21:15479 /22:20035 /23:20863 /24:125272
/25:875 /26:1146 /27:633 /28:263 /29:192 /30:266
/31:0 /32:73
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1145 1153 Cable One
6478 1130 1131 AT&T Worldnet Services
18566 1010 1028 Covad Communications
9583 960 1116 Sify Limited
4538 921 2745 China Education and Research
23577 920 929 Korea Telecom (ATM-MPLS)
2386 910 1218 AT&T Data Communications Serv
7011 834 944 Citizens Utilities
7018 823 1483 AT&T WorldNet Services
4755 796 1426 Videsh Sanchar Nigam Ltd. Aut
6197 785 1032 BellSouth Network Solutions,
9498 681 1002 BHARTI BT INTERNET LTD.
17488 639 816 Hathway IP Over Cable Interne
4766 607 809 Korea Telecom (KIX)
4323 597 1398 Time Warner Telecom
19916 563 568 OLM LLC
6517 552 587 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 12:1805 13:1 15:20 16:3
17:3 18:13 20:36 24:995 25:1 32:177
33:3 38:347 40:61 41:318 43:6 44:2
47:4 52:4 55:3 56:3 57:47 58:500
59:424 60:372 61:1003 62:999 63:2004 64:3311
65:2427 66:3538 67:834 68:680 69:1989 70:471
71:118 72:1422 73:5 74:685 75:307 76:135
77:380 78:204 79:3 80:830 81:840 82:592
83:378 84:638 85:826 86:345 87:564 88:290
89:1000 90:40 91:604 97:6 98:2 101:1
116:368 117:161 118:21 121:306 122:614 123:186
124:679 125:1007 128:272 129:214 130:137 131:365
132:54 133:9 134:198 135:34 136:188 137:86
138:156 139:107 140:512 141:174 142:409 143:253
144:313 145:47 146:334 147:128 148:465 149:189
150:112 151:157 152:92 153:118 154:12 155:255
156:162 157:220 158:160 159:175 160:136 161:103
162:173 163:183 164:493 165:394 166:298 167:302
168:504 169:124 170:387 171:22 172:3 189:74
190:1169 192:5783 193:3997 194:3275 195:2393 196:1031
198:3913 199:3226 200:5317 201:1228 202:7790 203:7864
204:3956 205:2006 206:2480 207:2928 208:2885 209:3508
210:2778 211:1210 212:1335 213:1527 214:423 215:45
216:4095 217:1201 218:385 219:451 220:1008 221:415
222:295
End of report