Routing Table Report 00:00 GMT Tue 04 Jul, 2006
Analysis Summary
----------------
BGP routing table entries examined: 204611
Prefixes after maximum aggregation: 107352
Unique aggregates announced to Internet: 93855
Total ASes present in the Internet Routing Table: 22669
Origin-only ASes present in the Internet Routing Table: 19688
Origin ASes announcing only one prefix: 9435
Transit ASes present in the Internet Routing Table: 2981
Transit-only ASes present in the Internet Routing Table: 72
Average AS path length visible in the Internet Routing Table: 3.4
Max AS path length visible: 24
Max AS path prepend of ASN (32609) 16
Prefixes from unregistered ASNs in the Routing Table: 40
Unregistered ASNs in the Routing Table: 20
Special use prefixes present in the Routing Table: 5
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1539189941
Equivalent to 91 /8s, 190 /16s and 44 /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: 104819
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 42474
Total APNIC prefixes after maximum aggregation: 17103
Prefixes being announced from the APNIC address blocks: 40082
Unique aggregates announced from the APNIC address blocks: 18468
APNIC Region origin ASes present in the Internet Routing Table: 2626
APNIC Region origin ASes announcing only one prefix: 738
APNIC Region transit ASes present in the Internet Routing Table: 405
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 234913700
Equivalent to 14 /8s, 0 /16s and 127 /24s
Percentage of available APNIC address space announced: 73.5
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, 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: 108225
Total ARIN prefixes after maximum aggregation: 59611
Prefixes being announced from the ARIN address blocks: 80562
Unique aggregates announced from the ARIN address blocks: 27049
ARIN Region origin ASes present in the Internet Routing Table: 10841
ARIN Region origin ASes announcing only one prefix: 4090
ARIN Region transit ASes present in the Internet Routing Table: 1013
Average ARIN Region AS path length visible: 2.9
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 295093537
Equivalent to 17 /8s, 150 /16s and 197 /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: 39815
Total RIPE prefixes after maximum aggregation: 25964
Prefixes being announced from the RIPE address blocks: 37220
Unique aggregates announced from the RIPE address blocks: 23950
RIPE Region origin ASes present in the Internet Routing Table: 8264
RIPE Region origin ASes announcing only one prefix: 4324
RIPE Region transit ASes present in the Internet Routing Table: 1360
Average RIPE Region AS path length visible: 3.6
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 255298176
Equivalent to 15 /8s, 55 /16s and 138 /24s
Percentage of available RIPE address space announced: 80.1
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: 11698
Total LACNIC prefixes after maximum aggregation: 3754
Prefixes being announced from the LACNIC address blocks: 9826
Unique aggregates announced from the LACNIC address blocks: 5601
LACNIC Region origin ASes present in the Internet Routing Table: 707
LACNIC Region origin ASes announcing only one prefix: 240
LACNIC Region transit ASes present in the Internet Routing Table: 138
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 28070144
Equivalent to 1 /8s, 172 /16s and 81 /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: 2360
Total AfriNIC prefixes after maximum aggregation: 920
Prefixes being announced from the AfriNIC address blocks: 1576
Unique aggregates announced from the AfriNIC address blocks: 947
AfriNIC Region origin ASes present in the Internet Routing Table: 159
AfriNIC Region origin ASes announcing only one prefix: 43
AfriNIC Region transit ASes present in the Internet Routing Table: 25
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC addresses announced to Internet: 4159488
Equivalent to 0 /8s, 63 /16s and 120 /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 1245 7246 223 CHINANET-BACKBONE
4755 925 256 67 Videsh Sanchar Nigam Ltd. Aut
9583 917 109 15 Sify Limited
4766 714 4435 309 Korea Telecom (KIX)
9498 684 211 68 BHARTI BT INTERNET LTD.
1221 649 1668 480 Telstra Pty Ltd
7545 548 124 74 TPG Internet Pty Ltd
17488 519 32 17 Hathway IP Over Cable Interne
4538 497 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 389 28 122 Telecommunications Technology
17974 384 129 14 PT TELEKOMUNIKASI INDONESIA
17557 382 30 172 Pakistan Telecom
4802 380 81 167 Wantree Development
9929 377 254 65 China Netcom Corp.
7474 362 211 229 SingTel Optus Pty Ltd
2907 341 1750 315 SINET Japan
4804 305 295 58 Microplex PTY LTD
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 667 1948 445 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
8220 283 471 266 COLT Telecommunications
3320 282 3988 237 Deutsche Telekom AG
680 241 2040 238 DFN-IP service G-WiN
5089 236 1659 45 NTL Group Limited
6746 232 89 207 Dynamic Network Technologies,
3246 231 463 221 Song Networks
1257 222 741 166 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 78 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 5022 6754 776 UUNET Technologies, Inc.
4323 3175 748 269 Time Warner Telecom
705 1544 573 677 UUNET Technologies, Inc.
7018 1491 6270 952 AT&T WorldNet Services
6197 1016 636 478 BellSouth Network Solutions,
721 1015 21998 314 DLA Systems Automation Center
174 953 5738 885 Cogent Communications
18566 945 272 8 Covad Communications
2386 919 561 713 AT&T Data Communications Serv
7046 843 253 699 UUNET Technologies, Inc.
1239 838 2783 595 Sprint
19262 720 2168 188 Verizon Global Networks
20115 713 619 381 Charter Communications
209 694 3681 547 Qwest
22773 667 1741 37 Cox Communications, Inc.
7011 650 218 413 Citizens Utilities
11492 642 89 10 Cable One
6461 609 227 84 AboveNet Communications, Inc.
6198 600 568 237 BellSouth Network Solutions,
852 595 1084 380 Telus Advanced Communications
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 3175 2906 Time Warner Telecom
4134 1245 1022 CHINANET-BACKBONE
18566 945 937 Covad Communications
9583 917 902 Sify Limited
705 1544 867 UUNET Technologies, Inc.
4755 925 858 Videsh Sanchar Nigam Ltd. Aut
721 1015 701 DLA Systems Automation Center
11492 642 632 Cable One
22773 667 630 Cox Communications, Inc.
9498 684 616 BHARTI BT INTERNET LTD.
7018 1491 539 AT&T WorldNet Services
6197 1016 538 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
855 568 499 Canadian Research Network
8151 700 483 UniNet S.A. de C.V.
7545 548 474 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
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
64513 PRIVATE 164.78.0.0/17 7610 SINGAPORE ADVANCE RE
64513 PRIVATE 164.78.0.0/16 7610 SINGAPORE ADVANCE RE
64513 PRIVATE 164.78.128.0/17 7610 SINGAPORE ADVANCE RE
64513 PRIVATE 164.78.247.0/24 7610 SINGAPORE ADVANCE RE
64513 PRIVATE 164.78.248.0/24 7610 SINGAPORE ADVANCE RE
64513 PRIVATE 164.78.249.0/24 7610 SINGAPORE ADVANCE RE
64513 PRIVATE 164.78.252.0/24 7610 SINGAPORE ADVANCE RE
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
65530 PRIVATE 192.147.68.0/24 2901 New Mexico Technet
65128 PRIVATE 193.110.50.0/24 24652 Juniper Networks, Eu
65106 PRIVATE 195.219.161.0/27 6453 Teleglobe Inc.
65000 PRIVATE 199.133.62.0/24 10886 University of Maryla
65000 PRIVATE 199.133.63.0/24 10886 University of Maryla
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
65500 PRIVATE 204.147.94.0/24 57 University of Minnes
65500 PRIVATE 205.215.222.0/24 57 University of Minnes
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 /15:718 /16:8887 /17:3347 /18:5537
/19:12082 /20:13771 /21:12316 /22:15536 /23:16837 /24:112755
/25:467 /26:352 /27:281 /28:212 /29:210 /30:475
/31:0 /32:99
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 3771 5022 UUNET Technologies, Inc.
4323 1883 3175 Time Warner Telecom
705 983 1544 UUNET Technologies, Inc.
18566 928 945 Covad Communications
6197 796 1016 BellSouth Network Solutions,
7018 791 1491 AT&T WorldNet Services
9583 747 917 Sify Limited
2386 636 919 AT&T Data Communications Serv
11492 630 642 Cable One
7046 598 843 UUNET Technologies, Inc.
7011 559 650 Citizens Utilities
19916 557 563 OLM LLC
6461 536 609 AboveNet Communications, Inc.
4766 525 714 Korea Telecom (KIX)
702 452 667 UUNET - Commercial IP service
855 447 568 Canadian Research Network
2686 446 491 IBM
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 8:41 12:1627 13:1 15:16
16:3 17:3 18:4 20:41 24:774 25:1
30:2 32:233 38:228 40:54 41:2 43:16
44:3 47:6 52:4 55:1 56:3 57:46
58:191 59:272 60:189 61:860 62:931 63:3420
64:3547 65:3666 66:3728 67:639 68:677 69:1542
70:389 71:85 72:798 74:52 75:1 80:798
81:659 82:687 83:391 84:392 85:577 86:388
87:397 88:110 89:312 121:1 122:2 123:1
124:267 125:528 128:151 129:189 130:120 131:313
132:35 133:8 134:160 135:48 136:178 137:84
138:204 139:138 140:491 141:134 142:407 143:168
144:224 145:39 146:320 147:142 148:341 149:194
150:114 151:94 152:72 153:106 154:6 155:206
156:184 157:148 158:167 159:174 160:91 161:80
162:244 163:158 164:231 165:222 166:172 167:243
168:611 169:128 170:352 171:14 183:1 190:82
192:5825 193:3381 194:2751 195:2114 196:896 198:4092
199:3303 200:4502 201:999 202:6895 203:7089 204:4080
205:2169 206:2797 207:3561 208:2987 209:3807 210:2125
211:751 212:1398 213:1592 214:343 215:41 216:4368
217:1392 218:311 219:282 220:734 221:367 222:199
End of report