Routing Table Report 04:00 +10GMT Sun 29 Jan, 2006

Analysis Summary ----------------

BGP routing table entries examined: 180255 Prefixes after maximum aggregation: 100588 Unique aggregates announced to Internet: 87556 Total ASes present in the Internet Routing Table: 21385 Origin-only ASes present in the Internet Routing Table: 18588 Origin ASes announcing only one prefix: 8815 Transit ASes present in the Internet Routing Table: 2797 Transit-only ASes present in the Internet Routing Table: 74 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 22 Prefixes from unregistered ASNs in the Routing Table: 1 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 12 Number of addresses announced to Internet: 1485234208 Equivalent to 88 /8s, 134 /16s and 224 /24s Percentage of available address space announced: 40.1 Percentage of allocated address space announced: 59.1 Percentage of available address space allocated: 67.8 Total number of prefixes smaller than registry allocations: 87478

APNIC Region Analysis Summary -----------------------------

Prefixes being announced by APNIC Region ASes: 37754 Total APNIC prefixes after maximum aggregation: 15938 Prefixes being announced from the APNIC address blocks: 35535 Unique aggregates announced from the APNIC address blocks: 17397 APNIC Region origin ASes present in the Internet Routing Table: 2465 APNIC Region origin ASes announcing only one prefix: 695 APNIC Region transit ASes present in the Internet Routing Table: 380 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 21 Number of APNIC addresses announced to Internet: 211556320 Equivalent to 12 /8s, 156 /16s and 23 /24s Percentage of available APNIC address space announced: 66.1

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: 94942 Total ARIN prefixes after maximum aggregation: 56457 Prefixes being announced from the ARIN address blocks: 74221 Unique aggregates announced from the ARIN address blocks: 28244 ARIN Region origin ASes present in the Internet Routing Table: 10471 ARIN Region origin ASes announcing only one prefix: 3902 ARIN Region transit ASes present in the Internet Routing Table: 974 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 17 Number of ARIN addresses announced to Internet: 284611584 Equivalent to 16 /8s, 246 /16s and 212 /24s Percentage of available ARIN address space announced: 70.7

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 ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/6, 74/7, 76/8, 198/7, 204/6, 208/7 and 216/8

RIPE Region Analysis Summary ----------------------------

Prefixes being announced by RIPE Region ASes: 35386 Total RIPE prefixes after maximum aggregation: 23864 Prefixes being announced from the RIPE address blocks: 32382 Unique aggregates announced from the RIPE address blocks: 21746 RIPE Region origin ASes present in the Internet Routing Table: 7564 RIPE Region origin ASes announcing only one prefix: 3957 RIPE Region transit ASes present in the Internet Routing Table: 1251 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 19 Number of RIPE addresses announced to Internet: 230558848 Equivalent to 13 /8s, 190 /16s and 12 /24s Percentage of available RIPE address space announced: 68.7

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 RIPE Address Blocks 62/8, 80/5, 88/6, 188/8, 193/8, 194/7, 212/7 and 217/8

LACNIC Region Analysis Summary ------------------------------

Prefixes being announced by LACNIC Region ASes: 10308 Total LACNIC prefixes after maximum aggregation: 3461 Prefixes being announced from the LACNIC address blocks: 8492 Unique aggregates announced from the LACNIC address blocks: 5076 LACNIC Region origin ASes present in the Internet Routing Table: 667 LACNIC Region origin ASes announcing only one prefix: 218 LACNIC Region transit ASes present in the Internet Routing Table: 123 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 22 Number of LACNIC addresses announced to Internet: 24854528 Equivalent to 1 /8s, 123 /16s and 64 /24s Percentage of available LACNIC address space announced: 37.0

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: 1858 Total AfriNIC prefixes after maximum aggregation: 868 Prefixes being announced from the AfriNIC address blocks: 1228 Unique aggregates announced from the AfriNIC address blocks: 860 AfriNIC Region origin ASes present in the Internet Routing Table: 144 AfriNIC Region origin ASes announcing only one prefix: 43 AfriNIC Region transit ASes present in the Internet Routing Table: 26 Average AfriNIC Region AS path length visible: 4.6 Max AfriNIC Region AS path length visible: 14 Number of AfriNIC addresses announced to Internet: 3040256 Equivalent to 0 /8s, 46 /16s and 100 /24s Percentage of available AfriNIC address space announced: 9.1

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 982 6462 204 CHINANET-BACKBONE 9583 847 109 15 Sify Limited 4755 793 258 62 Videsh Sanchar Nigam Ltd. Aut 4766 720 3930 304 Korea Telecom (KIX) 1221 669 1428 476 Telstra Pty Ltd 7545 516 108 70 TPG Internet Pty Ltd 9498 515 211 69 BHARTI BT INTERNET LTD. 17676 480 6949 104 Softbank BB Corp. 17488 435 26 9 Hathway IP Over Cable Interne 9443 411 94 85 Primus Telecommunications 4802 366 75 159 Wantree Development 2907 338 1763 315 SINET Japan 9929 335 218 50 China Netcom Corp. 7474 330 227 228 SingTel Optus Pty Ltd 18101 330 68 23 Reliance Infocom Ltd Internet 17974 316 77 37 PT TELEKOMUNIKASI INDONESIA 17557 312 25 161 Pakistan Telecom 4780 282 226 16 Digital United Inc. 9837 271 78 169 Powertel Ltd 9800 259 410 67 CHINA UNICOM

ARIN Region per AS prefix count summary ---------------------------------------

ASN No of nets /20 equiv MaxAgg Description 7018 1466 6245 950 AT&T WorldNet Services 4323 1207 724 236 Time Warner Telecom 174 1036 5791 947 Cogent Communications 721 1028 21970 310 DLA Systems Automation Center 6197 985 593 475 BellSouth Network Solutions, 701 962 8067 804 UUNET Technologies, Inc. 18566 897 272 8 Covad Communications 2386 883 501 691 AT&T Data Communications Serv 1239 848 2792 601 Sprint 20115 671 545 350 Charter Communications 209 665 3604 531 Qwest 6198 636 449 238 BellSouth Network Solutions, 11492 632 89 12 Cable One 22773 611 1478 33 Cox Communications, Inc. 19262 604 1743 146 Verizon Global Networks 855 573 243 65 Canadian Research Network 852 570 1092 379 Telus Advanced Communications 19916 563 49 54 OLM LLC 6478 537 1517 298 AT&T Worldnet Services 3602 522 127 106 Sprint Canada, Inc.

RIPE Region per AS prefix count summary ---------------------------------------

ASN No of nets /20 equiv MaxAgg Description 702 588 1954 464 UUNET - Commercial IP service 3301 303 1071 289 TeliaNet Sweden 3352 302 1500 34 Ibernet, Internet Access Netw 3320 281 3485 235 Deutsche Telekom AG 8220 275 474 269 COLT Telecommunications 680 248 2025 239 DFN-IP service G-WiN 3246 229 487 219 Song Networks 8708 223 275 207 Romania Data Systems S.A. 6746 218 85 188 Dynamic Network Technologies, 1257 195 712 173 SWIPnet Swedish IP Network 3269 185 1925 70 TELECOM ITALIA 5515 180 840 127 Sonera Solution Autonomous Sy 786 174 1795 174 The JANET IP Service 8866 172 37 13 Bulgarian Telecommunication C 24863 169 38 9 LINKdotNET AS number 3215 167 1366 81 France Telecom Transpac 5400 166 328 136 BT Ignite European Backbone 3300 164 170 93 AUCS Communications Services 6830 159 669 33 UPC Distribution Services 12479 156 322 5 Uni2 Autonomous System

LACNIC Region per AS prefix count summary -----------------------------------------

ASN No of nets /20 equiv MaxAgg Description 8151 559 1048 216 UniNet S.A. de C.V. 22047 379 141 44 VTR PUNTO NET S.A. 11172 304 110 77 Servicios Alestra S.A de C.V 16814 295 18 7 NSS, S.A. 13999 189 51 18 Mega Cable S.A. de C.V. 14117 181 11 6 Telefonica del Sur S.A. 6147 154 126 22 Telefonica Del Peru 7303 154 73 18 Telecom Argentina Stet-France 11556 130 64 3 Cable-Wireless Panama 19169 123 8 30 Telconet 10481 121 48 8 Prima S.A. 6503 114 148 76 AVANTEL, S.A. 21826 113 14 19 INTERCABLE 5639 112 12 9 Telecommunications Services o 6505 107 88 79 Global One Communicaoes Ltda 18822 99 8 10 TELEFONICA MANQUEHUE 7315 96 6 3 Grupo Rey Moreno 19429 96 52 49 E.T.B. 11311 94 8 23 Sinectis S.A. 14522 94 12 8 SatNet S.A.

AfriNIC Region per AS prefix count summary ------------------------------------------

ASN No of nets /20 equiv MaxAgg Description 3741 277 819 233 The Internet Solution 8452 151 60 7 TEDATA 5536 122 8 16 Internet Egypt Network 2018 117 298 103 Tertiary Education Network 15475 76 84 4 Nile Online 2905 74 155 67 The Internetworking Company o 24835 73 34 6 RAYA Telecom - Egypt 6713 68 71 10 Itissalat Al-MAGHRIB 20928 60 16 2 Noor Advanced Technologies AS 5713 38 166 34 Telkom SA Ltd 33774 37 9 28 AS Number for Telecom Algeria 15706 31 8 3 Sudatel Internet Exchange Aut 12455 28 6 5 Jambonet Autonomous system 23889 25 7 10 MAURITIUS TELECOM 8524 23 1 4 AUCEGYPT Autonomous System 16637 23 10 21 Johnnic e-Ventures 10798 22 1 13 Standard Bank of South Africa 21280 21 4 4 Swift Global Kenya Ltd.Is an 8346 20 14 19 SONATEL-AS Autonomous System 12258 17 3 11 Vodacom Internet Company

Global Per AS Maximum Aggr summary ----------------------------------

ASN No of nets Net Savings Description 4323 1207 971 Time Warner Telecom 18566 897 889 Covad Communications 9583 847 832 Sify Limited 4134 982 778 CHINANET-BACKBONE 4755 793 731 Videsh Sanchar Nigam Ltd. Aut 721 1028 718 DLA Systems Automation Center 11492 632 620 Cable One 22773 611 578 Cox Communications, Inc. 6197 985 510 BellSouth Network Solutions, 19916 563 509 OLM LLC 855 573 508 Canadian Research Network 5668 521 497 CenturyTel Internet Holdings, 19262 604 458 Verizon Global Networks 7545 516 446 TPG Internet Pty Ltd 9498 515 446 BHARTI BT INTERNET LTD. 7757 446 427 AT&T Broadband 17488 435 426 Hathway IP Over Cable Interne 4766 720 416 Korea Telecom (KIX) 3602 522 416 Sprint Canada, Inc. 812 438 410 Rogers WAVE

List of Unregistered ASNs (Global) ----------------------------------

Bad AS Designation Network Transit AS Description 65005 PRIVATE 159.153.148.0/22 24989 IX Europe Frankfurt

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 192.43.230.0/24 7575 Australian Academic and Rease 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 192.72.0.0/18 4780 Digital United Inc. 192.72.0.0/16 4780 Digital United Inc. 192.84.205.0/24 719 LANLINK autonomous system 192.119.135.0/24 270 NASA 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 /9:5 /10:8 /11:20 /12:87 /13:198 /14:350 /15:684 /16:8667 /17:2982 /18:4988 /19:11229 /20:12424 /21:10793 /22:13824 /23:15017 /24:98002 /25:315 /26:259 /27:203 /28:61 /29:26 /30:55 /31:3 /32:37

Advertised prefixes smaller than registry allocations -----------------------------------------------------

ASN No of nets Total ann. Description 18566 880 897 Covad Communications 6197 784 985 BellSouth Network Solutions, 7018 745 1466 AT&T WorldNet Services 9583 666 847 Sify Limited 11492 623 632 Cable One 2386 617 883 AT&T Data Communications Serv 4323 582 1207 Time Warner Telecom 19916 557 563 OLM LLC 4766 520 720 Korea Telecom (KIX) 6198 501 636 BellSouth Network Solutions, 855 445 573 Canadian Research Network 7757 428 446 AT&T Broadband 5668 409 521 CenturyTel Internet Holdings, 7011 406 472 Citizens Utilities 702 375 588 UUNET - Commercial IP service 1239 368 848 Sprint 6517 344 371 Yipes Communications, Inc. 15270 338 366 PaeTec.net -a division of Pae 22773 318 611 Cox Communications, Inc. 812 317 438 Rogers WAVE

Number of /24s announced per /8 block (Global) ----------------------------------------------

4:3 8:44 12:1635 13:1 15:11 16:3 17:3 18:4 20:42 24:859 25:1 30:2 32:66 38:191 40:54 44:3 47:3 52:4 55:1 56:3 57:34 58:115 59:163 60:183 61:822 62:745 63:1898 64:2963 65:2229 66:3093 67:590 68:665 69:1423 70:300 71:54 72:611 73:23 80:742 81:600 82:508 83:356 84:343 85:424 86:281 87:153 88:17 89:7 124:8 125:190 128:152 129:174 130:103 131:310 132:34 133:7 134:152 135:46 136:166 137:61 138:183 139:89 140:445 141:133 142:414 143:144 144:225 145:39 146:307 147:134 148:322 149:185 150:114 151:72 152:61 153:104 154:6 155:186 156:90 157:120 158:156 159:180 160:88 161:68 162:263 163:177 164:170 165:181 166:145 167:236 168:478 169:139 170:316 171:12 190:30 192:5755 193:3351 194:2474 195:1747 196:742 198:3891 199:3264 200:4218 201:569 202:6443 203:6752 204:3882 205:2106 206:2436 207:2922 208:2013 209:3526 210:1866 211:789 212:1283 213:1435 214:320 215:40 216:3844 217:1153 218:235 219:133 220:640 221:336 222:147

End of report