Routing Table Report 00:00 GMT Sun 02 Jul, 2006
Analysis Summary
----------------
BGP routing table entries examined: 204311
Prefixes after maximum aggregation: 107144
Unique aggregates announced to Internet: 93648
Total ASes present in the Internet Routing Table: 22623
Origin-only ASes present in the Internet Routing Table: 19642
Origin ASes announcing only one prefix: 9400
Transit ASes present in the Internet Routing Table: 2981
Transit-only ASes present in the Internet Routing Table: 77
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 24
Max AS path prepend of ASN (32609) 16
Prefixes from unregistered ASNs in the Routing Table: 28
Unregistered ASNs in the Routing Table: 16
Special use prefixes present in the Routing Table: 5
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1538856629
Equivalent to 91 /8s, 185 /16s and 22 /24s
Percentage of available address space announced: 41.5
Percentage of allocated address space announced: 60.1
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 104671
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 42426
Total APNIC prefixes after maximum aggregation: 17056
Prefixes being announced from the APNIC address blocks: 40035
Unique aggregates announced from the APNIC address blocks: 18368
APNIC Region origin ASes present in the Internet Routing Table: 2622
APNIC Region origin ASes announcing only one prefix: 739
APNIC Region transit ASes present in the Internet Routing Table: 403
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 234801828
Equivalent to 13 /8s, 254 /16s and 202 /24s
Percentage of available APNIC address space announced: 73.4
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: 108094
Total ARIN prefixes after maximum aggregation: 59503
Prefixes being announced from the ARIN address blocks: 80488
Unique aggregates announced from the ARIN address blocks: 27025
ARIN Region origin ASes present in the Internet Routing Table: 10818
ARIN Region origin ASes announcing only one prefix: 4074
ARIN Region transit ASes present in the Internet Routing Table: 1012
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 295065633
Equivalent to 17 /8s, 150 /16s and 88 /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, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 39718
Total RIPE prefixes after maximum aggregation: 25902
Prefixes being announced from the RIPE address blocks: 37108
Unique aggregates announced from the RIPE address blocks: 23889
RIPE Region origin ASes present in the Internet Routing Table: 8244
RIPE Region origin ASes announcing only one prefix: 4308
RIPE Region transit ASes present in the Internet Routing Table: 1371
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 255075712
Equivalent to 15 /8s, 52 /16s and 37 /24s
Percentage of available RIPE address space announced: 80.0
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: 11689
Total LACNIC prefixes after maximum aggregation: 3764
Prefixes being announced from the LACNIC address blocks: 9803
Unique aggregates announced from the LACNIC address blocks: 5566
LACNIC Region origin ASes present in the Internet Routing Table: 703
LACNIC Region origin ASes announcing only one prefix: 234
LACNIC Region transit ASes present in the Internet Routing Table: 132
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 28057344
Equivalent to 1 /8s, 172 /16s and 31 /24s
Percentage of available LACNIC address space announced: 41.8
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: 2357
Total AfriNIC prefixes after maximum aggregation: 919
Prefixes being announced from the AfriNIC address blocks: 1580
Unique aggregates announced from the AfriNIC address blocks: 949
AfriNIC Region origin ASes present in the Internet Routing Table: 159
AfriNIC Region origin ASes announcing only one prefix: 45
AfriNIC Region transit ASes present in the Internet Routing Table: 24
Average AfriNIC Region AS path length visible: 3.9
Max AfriNIC Region AS path length visible: 11
Number of AfriNIC addresses announced to Internet: 4162560
Equivalent to 0 /8s, 63 /16s and 132 /24s
Percentage of available AfriNIC address space announced: 12.4
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 1244 7262 225 CHINANET-BACKBONE
4755 919 256 70 Videsh Sanchar Nigam Ltd. Aut
9583 917 109 15 Sify Limited
4766 714 4435 309 Korea Telecom (KIX)
9498 681 211 66 BHARTI BT INTERNET LTD.
1221 649 1668 480 Telstra Pty Ltd
7545 547 122 72 TPG Internet Pty Ltd
17488 519 32 17 Hathway IP Over Cable Interne
4538 496 2717 31 China Education and Research
17676 490 7093 110 Softbank BB Corp.
9443 452 111 83 Primus Telecommunications
18101 421 85 24 Reliance Infocom Ltd Internet
17849 388 28 124 Telecommunications Technology
17557 384 30 174 Pakistan Telecom
4802 382 81 169 Wantree Development
17974 382 129 14 PT TELEKOMUNIKASI INDONESIA
9929 377 254 65 China Netcom Corp.
7474 361 211 228 SingTel Optus Pty Ltd
2907 343 1782 317 SINET Japan
4804 305 295 58 Microplex PTY LTD
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 668 1932 443 UUNET - Commercial IP service
3215 406 1728 96 France Telecom Transpac
3301 312 1327 297 TeliaNet Sweden
3352 305 1643 30 Ibernet, Internet Access Netw
3320 282 3988 237 Deutsche Telekom AG
8220 280 470 266 COLT Telecommunications
680 240 2024 237 DFN-IP service G-WiN
6746 239 90 214 Dynamic Network Technologies,
5089 236 1659 45 NTL Group Limited
3246 231 463 221 Song Networks
1257 223 741 167 SWIPnet Swedish IP Network
8708 215 276 204 Romania Data Systems S.A.
24863 215 42 10 LINKdotNET AS number
8551 209 198 29 Bezeq International
3269 202 2184 73 TELECOM ITALIA
30890 199 18 76 SC Kappa Invexim SRL
8866 187 37 15 Bulgarian Telecommunication C
6830 176 813 37 UPC Distribution Services
786 170 1778 170 The JANET IP Service
3300 170 171 97 AUCS Communications Services
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 5028 6753 777 UUNET Technologies, Inc.
4323 3171 748 269 Time Warner Telecom
705 1550 574 681 UUNET Technologies, Inc.
7018 1479 6253 945 AT&T WorldNet Services
721 1021 21998 314 DLA Systems Automation Center
6197 1016 636 483 BellSouth Network Solutions,
174 966 5771 896 Cogent Communications
18566 945 272 8 Covad Communications
2386 915 560 709 AT&T Data Communications Serv
1239 849 2783 605 Sprint
7046 843 253 699 UUNET Technologies, Inc.
19262 720 2168 188 Verizon Global Networks
20115 712 619 386 Charter Communications
209 694 3681 547 Qwest
22773 670 1741 40 Cox Communications, Inc.
7011 648 218 412 Citizens Utilities
11492 642 89 10 Cable One
6461 609 227 84 AboveNet Communications, Inc.
6198 600 568 237 BellSouth Network Solutions,
852 597 1084 382 Telus Advanced Communications
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 3171 2902 Time Warner Telecom
4134 1244 1019 CHINANET-BACKBONE
18566 945 937 Covad Communications
9583 917 902 Sify Limited
705 1550 869 UUNET Technologies, Inc.
4755 919 849 Videsh Sanchar Nigam Ltd. Aut
721 1021 707 DLA Systems Automation Center
11492 642 632 Cable One
22773 670 630 Cox Communications, Inc.
9498 681 615 BHARTI BT INTERNET LTD.
7018 1479 534 AT&T WorldNet Services
6197 1016 533 BellSouth Network Solutions,
19262 720 532 Verizon Global Networks
6461 609 525 AboveNet Communications, Inc.
19916 563 509 OLM LLC
5668 529 506 CenturyTel Internet Holdings,
17488 519 502 Hathway IP Over Cable Interne
855 571 499 Canadian Research Network
8151 692 477 UniNet S.A. de C.V.
7545 547 475 TPG Internet Pty Ltd
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
64666 PRIVATE 2.2.2.0/24 8001 Net Access Corporati
65000 PRIVATE 64.25.139.64/29 21947 Cutthroat Communicat
65473 PRIVATE 66.246.179.0/24 8001 Net Access Corporati
65500 PRIVATE 80.68.8.0/24 20806 JSCITT Autonomous Sy
64500 RESERVED 81.17.39.128/27 24587 AS for Internet Onli
65007 PRIVATE 84.204.244.0/24 20632 PETERSTAR Autonomous
65007 PRIVATE 84.204.245.0/24 20632 PETERSTAR Autonomous
65007 PRIVATE 84.204.246.0/24 20632 PETERSTAR Autonomous
65007 PRIVATE 84.204.247.0/24 20632 PETERSTAR Autonomous
65007 PRIVATE 84.204.248.0/24 20632 PETERSTAR Autonomous
65007 PRIVATE 84.204.249.0/24 20632 PETERSTAR Autonomous
65005 PRIVATE 129.26.0.0/16 680 DFN-IP service G-WiN
65005 PRIVATE 192.54.34.0/23 680 DFN-IP service G-WiN
65005 PRIVATE 192.76.241.0/24 680 DFN-IP service G-WiN
65005 PRIVATE 192.76.245.0/24 680 DFN-IP service G-WiN
65005 PRIVATE 192.76.246.0/23 680 DFN-IP service G-WiN
65005 PRIVATE 192.76.248.0/24 680 DFN-IP service G-WiN
65535 PRIVATE 200.32.160.0/21 6429 AT&T Chile Internet
65535 PRIVATE 200.32.168.0/23 6429 AT&T Chile Internet
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
65010 PRIVATE 212.2.12.160/28 8190 VIATEL
64565 PRIVATE 212.111.35.128/27 4513 PFM Communications,
64560 PRIVATE 213.219.53.192/26 4513 PFM Communications,
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
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
192.168.83.0/24 292 Energy Sciences Network
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
183.206.196.0/24 2188 FR-RENATER-ASTER
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
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:18 /9:9 /10:10 /11:28 /12:93
/13:207 /14:364 /15:719 /16:8885 /17:3346 /18:5535
/19:12047 /20:13739 /21:12293 /22:15555 /23:16831 /24:112535
/25:466 /26:354 /27:279 /28:214 /29:211 /30:474
/31:0 /32:99
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 3776 5028 UUNET Technologies, Inc.
4323 1878 3171 Time Warner Telecom
705 988 1550 UUNET Technologies, Inc.
18566 928 945 Covad Communications
6197 796 1016 BellSouth Network Solutions,
7018 789 1479 AT&T WorldNet Services
9583 747 917 Sify Limited
2386 634 915 AT&T Data Communications Serv
11492 630 642 Cable One
7046 597 843 UUNET Technologies, Inc.
7011 557 648 Citizens Utilities
19916 557 563 OLM LLC
6461 536 609 AboveNet Communications, Inc.
4766 525 714 Korea Telecom (KIX)
702 454 668 UUNET - Commercial IP service
2686 449 494 IBM
855 447 571 Canadian Research Network
6198 442 600 BellSouth Network Solutions,
5668 412 529 CenturyTel Internet Holdings,
15270 409 440 PaeTec.net -a division of Pae
Number of /24s announced per /8 block (Global)
----------------------------------------------
2:1 4:9 8:42 12:1626 13:1 15:16
16:3 17:3 18:4 20:41 24:774 25:1
30:2 32:233 38:230 40:54 41:2 43:16
44:3 47:6 52:4 55:1 56:3 57:46
58:191 59:271 60:187 61:852 62:938 63:3421
64:3550 65:3669 66:3738 67:639 68:677 69:1544
70:389 71:85 72:797 74:50 75:1 80:791
81:657 82:685 83:394 84:389 85:576 86:392
87:382 88:110 89:309 121:2 122:2 123:1
124:265 125:528 128:152 129:189 130:120 131:309
132:35 133:8 134:160 135:48 136:163 137:84
138:206 139:138 140:479 141:134 142:407 143:168
144:223 145:39 146:319 147:142 148:346 149:194
150:114 151:94 152:72 153:106 154:6 155:206
156:184 157:146 158:167 159:174 160:91 161:80
162:244 163:158 164:228 165:216 166:172 167:242
168:610 169:128 170:352 171:14 183:1 190:81
192:5821 193:3377 194:2745 195:2083 196:900 198:4081
199:3282 200:4487 201:1005 202:6897 203:7084 204:4056
205:2162 206:2794 207:3556 208:2982 209:3792 210:2094
211:752 212:1394 213:1597 214:356 215:41 216:4369
217:1384 218:310 219:283 220:734 221:367 222:198
End of report