Routing Table Report 00:00 GMT Tue 05 Dec, 2006
Analysis Summary
----------------
BGP routing table entries examined: 196275
Prefixes after maximum aggregation: 104839
Unique aggregates announced to Internet: 94294
Total ASes present in the Internet Routing Table: 22756
Origin-only ASes present in the Internet Routing Table: 19638
Origin ASes announcing only one prefix: 9652
Transit ASes present in the Internet Routing Table: 3118
Transit-only ASes present in the Internet Routing Table: 117
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 39
Max AS path prepend of ASN (14282) 36
Prefixes from unregistered ASNs in the Routing Table: 22
Unregistered ASNs in the Routing Table: 14
Special use prefixes present in the Routing Table: 3
Prefixes being announced from unallocated address space: 9
Number of addresses announced to Internet: 1545100474
Equivalent to 92 /8s, 24 /16s and 92 /24s
Percentage of available address space announced: 41.7
Percentage of allocated address space announced: 59.1
Percentage of available address space allocated: 70.5
Total number of prefixes smaller than registry allocations: 101625
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 41701
Total APNIC prefixes after maximum aggregation: 16860
Prefixes being announced from the APNIC address blocks: 39471
Unique aggregates announced from the APNIC address blocks: 16440
APNIC Region origin ASes present in the Internet Routing Table: 2664
APNIC Region origin ASes announcing only one prefix: 774
APNIC Region transit ASes present in the Internet Routing Table: 424
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 249938336
Equivalent to 14 /8s, 229 /16s and 193 /24s
Percentage of available APNIC address space announced: 78.2
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, 121/8, 122/7, 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: 98472
Total ARIN prefixes after maximum aggregation: 56220
Prefixes being announced from the ARIN address blocks: 71648
Unique aggregates announced from the ARIN address blocks: 27984
ARIN Region origin ASes present in the Internet Routing Table: 10393
ARIN Region origin ASes announcing only one prefix: 3987
ARIN Region transit ASes present in the Internet Routing Table: 1048
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 30
Number of ARIN addresses announced to Internet: 277643801
Equivalent to 16 /8s, 140 /16s and 130 /24s
Percentage of available ARIN address space announced: 61.3
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: 41236
Total RIPE prefixes after maximum aggregation: 26838
Prefixes being announced from the RIPE address blocks: 38110
Unique aggregates announced from the RIPE address blocks: 24735
RIPE Region origin ASes present in the Internet Routing Table: 8677
RIPE Region origin ASes announcing only one prefix: 4602
RIPE Region transit ASes present in the Internet Routing Table: 1445
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 254412097
Equivalent to 15 /8s, 42 /16s and 5 /24s
Percentage of available RIPE address space announced: 68.9
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
40960-43007
RIPE Address Blocks 62/8, 77/8, 78/7, 80/5, 88/6, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 12633
Total LACNIC prefixes after maximum aggregation: 3944
Prefixes being announced from the LACNIC address blocks: 10742
Unique aggregates announced from the LACNIC address blocks: 6421
LACNIC Region origin ASes present in the Internet Routing Table: 737
LACNIC Region origin ASes announcing only one prefix: 240
LACNIC Region transit ASes present in the Internet Routing Table: 135
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 39
Number of LACNIC addresses announced to Internet: 34135296
Equivalent to 2 /8s, 8 /16s and 221 /24s
Percentage of available LACNIC address space announced: 50.9
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: 2212
Total AfriNIC prefixes after maximum aggregation: 977
Prefixes being announced from the AfriNIC address blocks: 1689
Unique aggregates announced from the AfriNIC address blocks: 1050
AfriNIC Region origin ASes present in the Internet Routing Table: 168
AfriNIC Region origin ASes announcing only one prefix: 49
AfriNIC Region transit ASes present in the Internet Routing Table: 27
Average AfriNIC Region AS path length visible: 4.0
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 4086784
Equivalent to 0 /8s, 62 /16s and 92 /24s
Percentage of available AfriNIC address space announced: 12.2
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
4134 1250 8437 250 CHINANET-BACKBONE
4755 1054 383 65 Videsh Sanchar Nigam Ltd. Aut
9583 1002 108 62 Sify Limited
4538 950 2846 35 China Education and Research
23577 781 35 709 KRNIC
4766 744 4945 306 Korea Telecom (KIX)
1221 621 1698 457 Telstra Pty Ltd
18101 490 87 23 Reliance Infocom Ltd Internet
9942 437 81 130 COMindico Australia
4812 430 753 65 China Telecom (Shanghai)
4802 408 74 146 Wantree Development
9443 396 111 79 Primus Telecommunications
17849 394 34 114 Telecommunications Technology
9498 374 68 85 BHARTI BT INTERNET LTD.
17676 365 9114 22 Softbank BB Corp.
7545 364 119 66 TPG Internet Pty Ltd
17974 347 129 12 PT TELEKOMUNIKASI INDONESIA
2907 336 1749 311 SINET Japan
4837 327 3844 143 chinanet IDC center beijing n
9929 320 150 45 China Netcom Corp.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 545 1928 424 UUNET - Commercial IP service
3215 411 2068 98 France Telecom Transpac
24863 382 45 15 LINKdotNET AS number
3301 308 1199 292 TeliaNet Sweden
3320 299 4992 246 Deutsche Telekom AG
8220 273 472 263 COLT Telecommunications
6746 260 92 237 Dynamic Network Technologies,
680 250 2041 246 DFN-IP service G-WiN
9116 232 134 23 Goldenlines main autonomous s
1257 229 1073 174 SWIPnet Swedish IP Network
8708 227 280 214 Romania Data Systems S.A.
3246 210 369 197 Song Networks
5416 205 13 9 BATELCO-BH
3269 196 2305 69 TELECOM ITALIA
6830 185 823 39 UPC Distribution Services
786 171 1779 171 The JANET IP Service
5089 168 74 26 NTL Group Limited
12479 166 578 6 Uni2 Autonomous System
9121 165 929 29 TTnet Autonomous System
2856 164 2316 130 BTnet UK Regional network
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 4880 6706 767 UUNET Technologies, Inc.
7018 1529 10263 987 AT&T WorldNet Services
705 1431 555 630 UUNET Technologies, Inc.
2386 1110 586 739 AT&T Data Communications Serv
18566 979 272 8 Covad Communications
6197 946 593 487 BellSouth Network Solutions,
174 945 6821 867 Cogent Communications
1239 829 2731 580 Sprint
721 826 21905 298 DLA Systems Automation Center
7046 802 251 657 UUNET Technologies, Inc.
19262 786 2452 177 Verizon Global Networks
20115 769 688 417 Charter Communications
11492 756 98 15 Cable One
4323 750 654 241 Time Warner Telecom
209 710 3765 560 Qwest
7011 692 213 431 Citizens Utilities
852 610 1091 389 Telus Advanced Communications
19916 567 48 57 OLM LLC
5668 549 161 19 CenturyTel Internet Holdings,
855 539 250 73 Canadian Research Network
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4134 1250 1000 CHINANET-BACKBONE
4755 1054 989 Videsh Sanchar Nigam Ltd. Aut
18566 979 971 Covad Communications
9583 1002 940 Sify Limited
4538 950 915 China Education and Research
705 1431 801 UUNET Technologies, Inc.
11492 756 741 Cable One
19262 786 609 Verizon Global Networks
8151 755 549 UniNet S.A. de C.V.
7018 1529 542 AT&T WorldNet Services
5668 549 530 CenturyTel Internet Holdings,
721 826 528 DLA Systems Automation Center
19916 567 510 OLM LLC
4323 750 509 Time Warner Telecom
11830 506 497 Instituto Costarricense de El
18101 490 467 Reliance Infocom Ltd Internet
855 539 466 Canadian Research Network
6197 946 459 BellSouth Network Solutions,
15270 489 455 PaeTec.net -a division of Pae
4766 744 438 Korea Telecom (KIX)
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
64599 PRIVATE 64.200.115.0/24 32083 Omnispring
65509 PRIVATE 84.221.16.0/23 3257 Tiscali Intl Network
65515 PRIVATE 87.251.34.0/24 12859 Business Internet Tr
65515 PRIVATE 87.251.36.0/24 12859 Business Internet Tr
65006 PRIVATE 89.28.32.0/21 31252 StarNet Communicatio
65010 PRIVATE 135.196.7.112/29 8190 VIATEL
65014 PRIVATE 135.196.176.96/27 8190 VIATEL
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
65010 PRIVATE 212.2.12.160/28 8190 VIATEL
65016 PRIVATE 212.2.26.64/29 8190 VIATEL
65016 PRIVATE 212.2.31.184/30 8190 VIATEL
65515 PRIVATE 213.154.234.0/27 12859 Business Internet Tr
65526 PRIVATE 213.205.19.128/28 3257 Tiscali Intl Network
65526 PRIVATE 213.205.19.144/28 3257 Tiscali Intl Network
65018 PRIVATE 213.235.24.216/29 8190 VIATEL
65010 PRIVATE 213.235.29.224/29 8190 VIATEL
65013 PRIVATE 213.235.33.0/27 8190 VIATEL
65017 PRIVATE 213.235.48.96/28 8190 VIATEL
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
0.0.0.0/0 286 KPNQwest Backbone AS
192.0.2.0/24 2854 RoSprint AS (Global One Russi
192.168.83.0/24 292 Energy Sciences Network
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
172.33.1.0/24 7018 AT&T WorldNet Services
176.16.0.0/16 7908 Comsat Argentina S.A.
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
192.172.0.0/19 721 DLA Systems Automation Center
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
!!Default route being announced!!
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:20 /9:10 /10:12 /11:25 /12:101
/13:209 /14:357 /15:737 /16:8451 /17:3364 /18:5427
/19:11765 /20:12993 /21:12064 /22:15203 /23:16740 /24:106117
/25:734 /26:529 /27:459 /28:202 /29:151 /30:501
/31:1 /32:102
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 3632 4880 UUNET Technologies, Inc.
18566 962 979 Covad Communications
705 894 1431 UUNET Technologies, Inc.
9583 832 1002 Sify Limited
2386 827 1110 AT&T Data Communications Serv
7018 814 1529 AT&T WorldNet Services
23577 767 781 KRNIC
6197 743 946 BellSouth Network Solutions,
11492 743 756 Cable One
7011 597 692 Citizens Utilities
19916 562 567 OLM LLC
7046 556 802 UUNET Technologies, Inc.
4766 555 744 Korea Telecom (KIX)
4538 529 950 China Education and Research
4755 478 1054 Videsh Sanchar Nigam Ltd. Aut
15270 459 489 PaeTec.net -a division of Pae
855 436 539 Canadian Research Network
5668 422 549 CenturyTel Internet Holdings,
18101 422 490 Reliance Infocom Ltd Internet
1239 405 829 Sprint
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:65 9:1 12:1567 13:1 15:11
17:2 18:4 20:39 24:744 25:1 32:176
38:266 40:54 41:47 44:1 47:5 52:4
53:1 55:1 56:3 57:50 58:153 59:218
60:64 61:643 62:1136 63:3115 64:2817 65:3195
66:2405 67:523 68:435 69:1339 70:235 71:103
72:790 74:108 75:33 76:14 80:739 81:657
82:576 83:359 84:481 85:659 86:230 87:420
88:231 89:459 90:1 91:102 97:1 121:82
122:33 123:3 124:433 125:365 128:302 129:203
130:121 131:300 132:43 133:11 134:159 135:35
136:180 137:113 138:186 139:103 140:493 141:128
142:365 143:208 144:240 145:67 146:273 147:134
148:361 149:174 150:102 151:115 152:77 153:111
154:6 155:261 156:147 157:160 158:144 159:133
160:103 161:83 162:220 163:136 164:274 165:234
166:241 167:260 168:444 169:117 170:382 171:12
172:1 189:12 190:272 192:5533 193:3558 194:2867
195:2234 196:942 198:3756 199:3210 200:4250 201:868
202:6362 203:6208 204:3911 205:2097 206:2372 207:2960
208:2935 209:3469 210:2350 211:947 212:1330 213:1492
214:383 215:36 216:4198 217:1324 218:366 219:267
220:805 221:374 222:259
End of report