Routing Table Report 00:00 GMT Tue 29 Aug, 2006
Analysis Summary
----------------
BGP routing table entries examined: 210011
Prefixes after maximum aggregation: 109112
Unique aggregates announced to Internet: 95300
Total ASes present in the Internet Routing Table: 23052
Origin-only ASes present in the Internet Routing Table: 20125
Origin ASes announcing only one prefix: 9580
Transit ASes present in the Internet Routing Table: 2927
Transit-only ASes present in the Internet Routing Table: 64
Average AS path length visible in the Internet Routing Table: 2.7
Max AS path length visible: 28
Max AS path prepend of ASN (36728) 27
Prefixes from unregistered ASNs in the Routing Table: 22
Unregistered ASNs in the Routing Table: 16
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1578072253
Equivalent to 94 /8s, 15 /16s and 120 /24s
Percentage of available address space announced: 42.6
Percentage of allocated address space announced: 61.6
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 108253
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 44510
Total APNIC prefixes after maximum aggregation: 17512
Prefixes being announced from the APNIC address blocks: 42073
Unique aggregates announced from the APNIC address blocks: 18318
APNIC Region origin ASes present in the Internet Routing Table: 2700
APNIC Region origin ASes announcing only one prefix: 761
APNIC Region transit ASes present in the Internet Routing Table: 406
Average APNIC Region AS path length visible: 3.0
Max APNIC Region AS path length visible: 23
Number of APNIC addresses announced to Internet: 261858432
Equivalent to 15 /8s, 155 /16s and 164 /24s
Percentage of available APNIC address space announced: 81.9
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: 110117
Total ARIN prefixes after maximum aggregation: 60341
Prefixes being announced from the ARIN address blocks: 82269
Unique aggregates announced from the ARIN address blocks: 27410
ARIN Region origin ASes present in the Internet Routing Table: 10964
ARIN Region origin ASes announcing only one prefix: 4130
ARIN Region transit ASes present in the Internet Routing Table: 991
Average ARIN Region AS path length visible: 2.4
Max ARIN Region AS path length visible: 28
Number of ARIN addresses announced to Internet: 296184673
Equivalent to 17 /8s, 167 /16s and 107 /24s
Percentage of available ARIN address space announced: 76.8
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, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 40635
Total RIPE prefixes after maximum aggregation: 26522
Prefixes being announced from the RIPE address blocks: 37906
Unique aggregates announced from the RIPE address blocks: 24564
RIPE Region origin ASes present in the Internet Routing Table: 8444
RIPE Region origin ASes announcing only one prefix: 4407
RIPE Region transit ASes present in the Internet Routing Table: 1356
Average RIPE Region AS path length visible: 2.9
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 262003552
Equivalent to 15 /8s, 157 /16s and 219 /24s
Percentage of available RIPE address space announced: 82.2
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
40960-41983
RIPE Address Blocks 62/8, 80/5, 88/6, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 12328
Total LACNIC prefixes after maximum aggregation: 3790
Prefixes being announced from the LACNIC address blocks: 10371
Unique aggregates announced from the LACNIC address blocks: 5972
LACNIC Region origin ASes present in the Internet Routing Table: 716
LACNIC Region origin ASes announcing only one prefix: 237
LACNIC Region transit ASes present in the Internet Routing Table: 125
Average LACNIC Region AS path length visible: 3.1
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 32223744
Equivalent to 1 /8s, 235 /16s and 178 /24s
Percentage of available LACNIC address space announced: 48.0
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: 2400
Total AfriNIC prefixes after maximum aggregation: 947
Prefixes being announced from the AfriNIC address blocks: 1676
Unique aggregates announced from the AfriNIC address blocks: 1001
AfriNIC Region origin ASes present in the Internet Routing Table: 164
AfriNIC Region origin ASes announcing only one prefix: 45
AfriNIC Region transit ASes present in the Internet Routing Table: 23
Average AfriNIC Region AS path length visible: 2.8
Max AfriNIC Region AS path length visible: 10
Number of AfriNIC addresses announced to Internet: 4217344
Equivalent to 0 /8s, 64 /16s and 90 /24s
Percentage of available AfriNIC address space announced: 12.6
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 1305 8142 240 CHINANET-BACKBONE
4755 971 255 64 Videsh Sanchar Nigam Ltd. Aut
9583 949 109 15 Sify Limited
9498 803 211 71 BHARTI BT INTERNET LTD.
4766 751 4435 309 Korea Telecom (KIX)
1221 654 1780 483 Telstra Pty Ltd
4538 608 2717 31 China Education and Research
7545 542 124 74 TPG Internet Pty Ltd
17488 522 32 18 Hathway IP Over Cable Interne
17676 497 10933 62 Softbank BB Corp.
9443 450 111 83 Primus Telecommunications
18101 446 85 18 Reliance Infocom Ltd Internet
17849 411 30 123 Telecommunications Technology
4802 408 84 150 Wantree Development
4812 394 728 59 China Telecom (Shanghai)
17974 373 129 12 PT TELEKOMUNIKASI INDONESIA
7474 358 211 230 SingTel Optus Pty Ltd
17557 357 29 167 Pakistan Telecom
2907 340 1733 313 SINET Japan
4837 320 3539 138 chinanet IDC center beijing n
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 557 1947 438 UUNET - Commercial IP service
3215 398 1760 97 France Telecom Transpac
3301 315 1186 300 TeliaNet Sweden
3320 298 5013 241 Deutsche Telekom AG
8220 287 471 269 COLT Telecommunications
24863 256 42 11 LINKdotNET AS number
680 248 2041 244 DFN-IP service G-WiN
1257 248 744 167 SWIPnet Swedish IP Network
6746 245 91 224 Dynamic Network Technologies,
5089 235 1641 46 NTL Group Limited
3246 231 462 221 Song Networks
8708 216 278 203 Romania Data Systems S.A.
3269 202 2246 73 TELECOM ITALIA
8551 202 182 27 Bezeq International
30890 202 18 83 SC Kappa Invexim SRL
6830 195 879 43 UPC Distribution Services
5416 180 12 11 BATELCO-BH
8866 180 37 15 Bulgarian Telecommunication C
3300 174 171 95 AUCS Communications Services
786 172 1779 172 The JANET IP Service
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 5002 6796 786 UUNET Technologies, Inc.
4323 3206 766 286 Time Warner Telecom
7018 1493 6268 963 AT&T WorldNet Services
705 1478 556 649 UUNET Technologies, Inc.
6197 1025 638 479 BellSouth Network Solutions,
721 999 21926 310 DLA Systems Automation Center
2386 958 561 724 AT&T Data Communications Serv
18566 958 272 8 Covad Communications
174 933 5753 877 Cogent Communications
1239 850 2798 601 Sprint
7046 822 250 680 UUNET Technologies, Inc.
20115 737 659 386 Charter Communications
19262 735 2268 189 Verizon Global Networks
11492 731 90 15 Cable One
22773 693 1744 43 Cox Communications, Inc.
209 682 3641 537 Qwest
7011 667 207 422 Citizens Utilities
852 604 1068 384 Telus Advanced Communications
6461 604 222 91 AboveNet Communications, Inc.
19916 563 49 54 OLM LLC
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 3206 2920 Time Warner Telecom
4134 1305 1065 CHINANET-BACKBONE
18566 958 950 Covad Communications
9583 949 934 Sify Limited
4755 971 907 Videsh Sanchar Nigam Ltd. Aut
705 1478 829 UUNET Technologies, Inc.
9498 803 732 BHARTI BT INTERNET LTD.
11492 731 716 Cable One
721 999 689 DLA Systems Automation Center
22773 693 650 Cox Communications, Inc.
4538 608 577 China Education and Research
6197 1025 546 BellSouth Network Solutions,
19262 735 546 Verizon Global Networks
8151 750 531 UniNet S.A. de C.V.
7018 1493 530 AT&T WorldNet Services
5668 533 515 CenturyTel Internet Holdings,
6461 604 513 AboveNet Communications, Inc.
19916 563 509 OLM LLC
17488 522 504 Hathway IP Over Cable Interne
855 559 489 Canadian Research Network
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
64666 PRIVATE 2.2.2.0/24 8001 Net Access Corporati
65473 PRIVATE 66.246.179.0/24 8001 Net Access Corporati
64500 RESERVED 81.17.39.128/27 24587 AS for Internet Onli
65515 PRIVATE 87.251.34.0/24 12859 Business Internet Tr
65515 PRIVATE 87.251.36.0/24 12859 Business Internet Tr
65014 PRIVATE 135.196.176.96/27 8190 VIATEL
65010 PRIVATE 203.117.213.0/24 9255 Singapore Telecom
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
64565 PRIVATE 212.111.35.128/27 4513 PFM Communications,
65515 PRIVATE 213.154.234.0/27 12859 Business Internet Tr
65517 PRIVATE 213.154.248.0/29 12859 Business Internet Tr
65517 PRIVATE 213.154.248.8/29 12859 Business Internet Tr
64560 PRIVATE 213.219.53.192/26 4513 PFM Communications,
65013 PRIVATE 213.235.33.0/27 8190 VIATEL
65000 PRIVATE 216.136.11.0/24 27182 Peregrine Capital Ma
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
0.0.0.0/8 3303 Swisscom Ltd
169.254.0.0/16 8895 KACST/ISU Riyadh Autonomous S
172.16.2.32/27 6325 Illinois Century Network
172.16.2.80/28 6325 Illinois Century Network
172.31.31.0/30 6325 Illinois Century Network
192.0.2.0/24 8895 KACST/ISU Riyadh Autonomous S
192.168.83.0/24 292 Energy Sciences Network
198.18.0.0/15 8895 KACST/ISU Riyadh Autonomous S
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
2.2.2.0/24 64666 PRIVATE ASN
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
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
192.84.205.0/24 719 LANLINK autonomous system
192.172.0.0/19 721 DLA Systems Automation Center
192.249.0.0/20 3450 University of Tennessee, Knox
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 /10:13 /11:31 /12:103
/13:217 /14:379 /15:743 /16:9008 /17:3501 /18:5717
/19:12416 /20:14158 /21:12572 /22:16035 /23:17350 /24:115379
/25:512 /26:481 /27:306 /28:226 /29:196 /30:523
/31:0 /32:117
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 3734 5002 UUNET Technologies, Inc.
4323 1905 3206 Time Warner Telecom
18566 941 958 Covad Communications
705 925 1478 UUNET Technologies, Inc.
6197 804 1025 BellSouth Network Solutions,
9583 780 949 Sify Limited
7018 779 1493 AT&T WorldNet Services
11492 719 731 Cable One
2386 677 958 AT&T Data Communications Serv
7046 584 822 UUNET Technologies, Inc.
7011 572 667 Citizens Utilities
4766 562 751 Korea Telecom (KIX)
19916 557 563 OLM LLC
6461 533 604 AboveNet Communications, Inc.
2686 515 560 IBM
9498 481 803 BHARTI BT INTERNET LTD.
855 436 559 Canadian Research Network
15270 434 465 PaeTec.net -a division of Pae
5668 416 533 CenturyTel Internet Holdings,
4755 407 971 Videsh Sanchar Nigam Ltd. Aut
Number of /24s announced per /8 block (Global)
----------------------------------------------
2:1 4:9 8:49 12:1632 13:1 15:15
16:3 17:3 18:4 20:41 24:814 25:1
32:269 38:247 40:54 41:17 44:3 47:6
52:4 55:1 56:3 57:54 58:216 59:289
60:188 61:917 62:1015 63:3384 64:3582 65:3625
66:3856 67:664 68:659 69:1618 70:387 71:88
72:889 74:74 75:6 80:784 81:678 82:700
83:390 84:410 85:651 86:381 87:447 88:166
89:423 91:1 121:17 122:6 123:1 124:349
125:611 128:163 129:204 130:118 131:315 132:38
133:9 134:162 135:48 136:177 137:86 138:213
139:133 140:519 141:135 142:389 143:190 144:240
145:41 146:325 147:141 148:351 149:179 150:114
151:116 152:76 153:117 154:6 155:222 156:172
157:179 158:165 159:174 160:93 161:89 162:218
163:166 164:277 165:225 166:183 167:240 168:600
169:127 170:362 171:14 189:1 190:203 192:5834
193:3423 194:2787 195:2192 196:942 198:4043 199:3388
200:4623 201:1038 202:7010 203:7184 204:4081 205:2159
206:2825 207:3624 208:3063 209:3884 210:2225 211:908
212:1371 213:1527 214:354 215:40 216:4424 217:1344
218:356 219:294 220:785 221:384 222:249
End of report