Routing Table Report 00:00 GMT Mon 19 Jun, 2006
Analysis Summary
----------------
BGP routing table entries examined: 204200
Prefixes after maximum aggregation: 106822
Unique aggregates announced to Internet: 93343
Total ASes present in the Internet Routing Table: 22530
Origin-only ASes present in the Internet Routing Table: 19569
Origin ASes announcing only one prefix: 9345
Transit ASes present in the Internet Routing Table: 2961
Transit-only ASes present in the Internet Routing Table: 71
Average AS path length visible in the Internet Routing Table: 3.8
Max AS path length visible: 20
Max AS path prepend of ASN (34527) 16
Prefixes from unregistered ASNs in the Routing Table: 20
Unregistered ASNs in the Routing Table: 15
Special use prefixes present in the Routing Table: 5
Prefixes being announced from unallocated address space: 60
Number of addresses announced to Internet: 2016048054
Equivalent to 120 /8s, 42 /16s and 115 /24s
Percentage of available address space announced: 54.4
Percentage of allocated address space announced: 78.7
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 104799
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 42131
Total APNIC prefixes after maximum aggregation: 17021
Prefixes being announced from the APNIC address blocks: 39755
Unique aggregates announced from the APNIC address blocks: 18334
APNIC Region origin ASes present in the Internet Routing Table: 2620
APNIC Region origin ASes announcing only one prefix: 747
APNIC Region transit ASes present in the Internet Routing Table: 400
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 294944676
Equivalent to 17 /8s, 148 /16s and 127 /24s
Percentage of available APNIC address space announced: 92.2
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: 108664
Total ARIN prefixes after maximum aggregation: 59375
Prefixes being announced from the ARIN address blocks: 80974
Unique aggregates announced from the ARIN address blocks: 26884
ARIN Region origin ASes present in the Internet Routing Table: 10782
ARIN Region origin ASes announcing only one prefix: 4047
ARIN Region transit ASes present in the Internet Routing Table: 1015
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 20
Number of ARIN addresses announced to Internet: 294190881
Equivalent to 17 /8s, 136 /16s and 255 /24s
Percentage of available ARIN address space announced: 76.2
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: 39570
Total RIPE prefixes after maximum aggregation: 25786
Prefixes being announced from the RIPE address blocks: 36954
Unique aggregates announced from the RIPE address blocks: 23779
RIPE Region origin ASes present in the Internet Routing Table: 8201
RIPE Region origin ASes announcing only one prefix: 4276
RIPE Region transit ASes present in the Internet Routing Table: 1355
Average RIPE Region AS path length visible: 3.7
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 254203264
Equivalent to 15 /8s, 38 /16s and 213 /24s
Percentage of available RIPE address space announced: 79.7
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: 11537
Total LACNIC prefixes after maximum aggregation: 3716
Prefixes being announced from the LACNIC address blocks: 9697
Unique aggregates announced from the LACNIC address blocks: 5517
LACNIC Region origin ASes present in the Internet Routing Table: 697
LACNIC Region origin ASes announcing only one prefix: 231
LACNIC Region transit ASes present in the Internet Routing Table: 135
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 27427328
Equivalent to 1 /8s, 162 /16s and 130 /24s
Percentage of available LACNIC address space announced: 40.9
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: 2279
Total AfriNIC prefixes after maximum aggregation: 924
Prefixes being announced from the AfriNIC address blocks: 1555
Unique aggregates announced from the AfriNIC address blocks: 964
AfriNIC Region origin ASes present in the Internet Routing Table: 159
AfriNIC Region origin ASes announcing only one prefix: 44
AfriNIC Region transit ASes present in the Internet Routing Table: 26
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 4135936
Equivalent to 0 /8s, 63 /16s and 28 /24s
Percentage of available AfriNIC address space announced: 12.3
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 1240 7244 229 CHINANET-BACKBONE
4755 922 256 73 Videsh Sanchar Nigam Ltd. Aut
9583 903 109 16 Sify Limited
4766 715 4436 310 Korea Telecom (KIX)
9498 659 211 68 BHARTI BT INTERNET LTD.
1221 650 1668 482 Telstra Pty Ltd
7545 547 124 71 TPG Internet Pty Ltd
17488 519 32 10 Hathway IP Over Cable Interne
17676 488 7061 109 Softbank BB Corp.
9443 450 110 81 Primus Telecommunications
4538 437 2717 31 China Education and Research
18101 413 85 24 Reliance Infocom Ltd Internet
17557 398 31 178 Pakistan Telecom
9929 385 253 63 China Netcom Corp.
4802 383 80 170 Wantree Development
17974 382 129 14 PT TELEKOMUNIKASI INDONESIA
4780 365 225 27 Digital United Inc.
7474 364 211 229 SingTel Optus Pty Ltd
2907 339 1733 313 SINET Japan
4804 305 295 58 Microplex PTY LTD
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 688 1951 451 UUNET - Commercial IP service
3215 403 1680 93 France Telecom Transpac
3301 314 1343 299 TeliaNet Sweden
3352 306 1643 30 Ibernet, Internet Access Netw
3320 287 3988 241 Deutsche Telekom AG
8220 281 471 265 COLT Telecommunications
680 245 2025 242 DFN-IP service G-WiN
5089 237 1691 46 NTL Group Limited
6746 236 89 211 Dynamic Network Technologies,
3246 235 499 225 Song Networks
1257 219 741 164 SWIPnet Swedish IP Network
8708 216 275 202 Romania Data Systems S.A.
24863 215 42 10 LINKdotNET AS number
3269 201 2182 72 TELECOM ITALIA
8551 201 198 24 Bezeq International
30890 194 17 72 SC Kappa Invexim SRL
8866 183 37 15 Bulgarian Telecommunication C
5400 175 348 141 BT Ignite European Backbone
6830 173 781 36 UPC Distribution Services
786 172 1778 172 The JANET IP Service
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 5036 6752 773 UUNET Technologies, Inc.
4323 3142 743 263 Time Warner Telecom
705 1581 579 704 UUNET Technologies, Inc.
7018 1468 6267 950 AT&T WorldNet Services
721 1013 21982 313 DLA Systems Automation Center
6197 1012 629 473 BellSouth Network Solutions,
174 968 5771 902 Cogent Communications
19029 948 151 109 New Edge Networks
18566 943 272 8 Covad Communications
2386 910 560 703 AT&T Data Communications Serv
1239 852 2797 604 Sprint
7046 845 253 701 UUNET Technologies, Inc.
20115 713 617 387 Charter Communications
19262 710 2105 183 Verizon Global Networks
209 708 3687 550 Qwest
22773 666 1741 40 Cox Communications, Inc.
7011 638 218 414 Citizens Utilities
11492 632 87 23 Cable One
6461 606 227 84 AboveNet Communications, Inc.
852 597 1084 382 Telus Advanced Communications
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 3142 2879 Time Warner Telecom
4134 1240 1011 CHINANET-BACKBONE
18566 943 935 Covad Communications
9583 903 887 Sify Limited
705 1581 877 UUNET Technologies, Inc.
4755 922 849 Videsh Sanchar Nigam Ltd. Aut
19029 948 839 New Edge Networks
721 1013 700 DLA Systems Automation Center
22773 666 626 Cox Communications, Inc.
11492 632 609 Cable One
9498 659 591 BHARTI BT INTERNET LTD.
6197 1012 539 BellSouth Network Solutions,
19262 710 527 Verizon Global Networks
6461 606 522 AboveNet Communications, Inc.
7018 1468 518 AT&T WorldNet Services
19916 563 509 OLM LLC
17488 519 509 Hathway IP Over Cable Interne
5668 529 506 CenturyTel Internet Holdings,
855 550 486 Canadian Research Network
8151 709 484 UniNet S.A. de C.V.
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
65516 PRIVATE 84.222.96.0/22 3257 Tiscali Intl Network
64704 PRIVATE 86.70.139.0/24 34383 TELOISE
65515 PRIVATE 87.251.34.0/24 12859 Business Internet Tr
65515 PRIVATE 87.251.36.0/24 12859 Business Internet Tr
65517 PRIVATE 198.32.176.0/24 293 Energy Sciences Netw
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,
65515 PRIVATE 213.154.234.0/27 12859 Business Internet Tr
65517 PRIVATE 213.154.248.0/28 12859 Business Internet Tr
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
96.0.0.0/9 1660 ANS Communications
96.128.0.0/9 1660 ANS Communications
97.0.0.0/9 1660 ANS Communications
97.128.0.0/9 1660 ANS Communications
98.0.0.0/9 1660 ANS Communications
98.128.0.0/9 1660 ANS Communications
99.0.0.0/9 1660 ANS Communications
99.128.0.0/9 1660 ANS Communications
100.0.0.0/9 1660 ANS Communications
100.128.0.0/9 1660 ANS Communications
101.0.0.0/9 1660 ANS Communications
101.128.0.0/9 1660 ANS Communications
102.0.0.0/9 1660 ANS Communications
102.128.0.0/9 1660 ANS Communications
103.0.0.0/9 1660 ANS Communications
103.128.0.0/9 1660 ANS Communications
104.0.0.0/9 1660 ANS Communications
104.128.0.0/9 1660 ANS Communications
105.0.0.0/9 1660 ANS Communications
105.128.0.0/9 1660 ANS Communications
106.0.0.0/9 1660 ANS Communications
106.128.0.0/9 1660 ANS Communications
107.0.0.0/9 1660 ANS Communications
107.128.0.0/9 1660 ANS Communications
108.0.0.0/9 1660 ANS Communications
108.128.0.0/9 1660 ANS Communications
109.0.0.0/9 1660 ANS Communications
109.128.0.0/9 1660 ANS Communications
110.0.0.0/9 1660 ANS Communications
110.128.0.0/9 1660 ANS Communications
111.0.0.0/9 1660 ANS Communications
111.128.0.0/9 1660 ANS Communications
112.0.0.0/9 1660 ANS Communications
112.128.0.0/9 1660 ANS Communications
113.0.0.0/9 1660 ANS Communications
113.128.0.0/9 1660 ANS Communications
114.0.0.0/9 1660 ANS Communications
114.128.0.0/9 1660 ANS Communications
115.0.0.0/9 1660 ANS Communications
115.128.0.0/9 1660 ANS Communications
116.0.0.0/9 1660 ANS Communications
116.128.0.0/9 1660 ANS Communications
117.0.0.0/9 1660 ANS Communications
117.128.0.0/9 1660 ANS Communications
118.0.0.0/9 1660 ANS Communications
118.128.0.0/9 1660 ANS Communications
119.0.0.0/9 1660 ANS Communications
119.128.0.0/9 1660 ANS Communications
120.0.0.0/9 1660 ANS Communications
120.128.0.0/9 1660 ANS Communications
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 /9:67 /10:10 /11:28 /12:93
/13:207 /14:362 /15:713 /16:8881 /17:3324 /18:5505
/19:12027 /20:13603 /21:12135 /22:15563 /23:16754 /24:112759
/25:469 /26:400 /27:285 /28:211 /29:221 /30:463
/31:0 /32:102
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 3781 5036 UUNET Technologies, Inc.
4323 1866 3142 Time Warner Telecom
705 1016 1581 UUNET Technologies, Inc.
18566 926 943 Covad Communications
19029 879 948 New Edge Networks
6197 795 1012 BellSouth Network Solutions,
7018 779 1468 AT&T WorldNet Services
9583 734 903 Sify Limited
2386 631 910 AT&T Data Communications Serv
11492 623 632 Cable One
7046 599 845 UUNET Technologies, Inc.
19916 557 563 OLM LLC
7011 547 638 Citizens Utilities
6461 533 606 AboveNet Communications, Inc.
2686 531 576 IBM
4766 525 715 Korea Telecom (KIX)
702 471 688 UUNET - Commercial IP service
855 424 550 Canadian Research Network
5668 412 529 CenturyTel Internet Holdings,
15270 404 435 PaeTec.net -a division of Pae
Number of /24s announced per /8 block (Global)
----------------------------------------------
2:1 4:9 8:42 12:1635 13:1 15:16
16:3 17:3 18:4 20:41 24:753 25:1
30:2 32:277 38:231 40:54 41:3 44:3
47:6 52:4 55:1 56:3 57:46 58:190
59:247 60:189 61:876 62:917 63:3426 64:3544
65:3604 66:3734 67:652 68:671 69:1553 70:391
71:81 72:763 74:43 80:798 81:663 82:656
83:407 84:395 85:560 86:389 87:369 88:110
89:264 121:1 122:2 123:1 124:279 125:515
128:168 129:188 130:119 131:317 132:34 133:9
134:159 135:43 136:177 137:82 138:206 139:160
140:468 141:134 142:405 143:166 144:221 145:40
146:319 147:141 148:318 149:190 150:113 151:93
152:72 153:106 154:6 155:204 156:98 157:148
158:169 159:173 160:91 161:79 162:244 163:154
164:224 165:217 166:171 167:246 168:605 169:127
170:336 171:14 183:1 190:75 192:5853 193:3385
194:2767 195:2078 196:884 198:4032 199:3294 200:4487
201:986 202:6849 203:7119 204:4086 205:2173 206:2794
207:3552 208:2942 209:4186 210:2086 211:736 212:1412
213:1574 214:362 215:40 216:4598 217:1374 218:310
219:265 220:721 221:359 222:196
End of report
