Routing Table Report 04:00 +10GMT Thu 22 Dec, 2005

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

BGP routing table entries examined: 176694 Prefixes after maximum aggregation: 99650 Unique aggregates announced to Internet: 85844 Total ASes present in the Internet Routing Table: 21208 Origin-only ASes present in the Internet Routing Table: 18462 Origin ASes announcing only one prefix: 8736 Transit ASes present in the Internet Routing Table: 2746 Transit-only ASes present in the Internet Routing Table: 74 Average AS path length visible in the Internet Routing Table: 4.6 Max AS path length visible: 25 Prefixes from unregistered ASNs in the Routing Table: 18 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 11 Number of addresses announced to Internet: 1491797632 Equivalent to 88 /8s, 235 /16s and 6 /24s Percentage of available address space announced: 40.2 Percentage of allocated address space announced: 60.6 Percentage of available address space allocated: 66.4 Total number of prefixes smaller than registry allocations: 84895

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

Prefixes being announced by APNIC Region ASes: 36895 Total APNIC prefixes after maximum aggregation: 15762 Prefixes being announced from the APNIC address blocks: 34642 Unique aggregates announced from the APNIC address blocks: 17081 APNIC Region origin ASes present in the Internet Routing Table: 2447 APNIC Region origin ASes announcing only one prefix: 702 APNIC Region transit ASes present in the Internet Routing Table: 368 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 17 Number of APNIC addresses announced to Internet: 208936640 Equivalent to 12 /8s, 116 /16s and 30 /24s Percentage of available APNIC address space announced: 77.5

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, 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: 93139 Total ARIN prefixes after maximum aggregation: 56112 Prefixes being announced from the ARIN address blocks: 72572 Unique aggregates announced from the ARIN address blocks: 27757 ARIN Region origin ASes present in the Internet Routing Table: 10398 ARIN Region origin ASes announcing only one prefix: 3865 ARIN Region transit ASes present in the Internet Routing Table: 957 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 17 Number of ARIN addresses announced to Internet: 280728832 Equivalent to 16 /8s, 187 /16s and 149 /24s Percentage of available ARIN address space announced: 69.7

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: 34701 Total RIPE prefixes after maximum aggregation: 23525 Prefixes being announced from the RIPE address blocks: 31704 Unique aggregates announced from the RIPE address blocks: 21278 RIPE Region origin ASes present in the Internet Routing Table: 7483 RIPE Region origin ASes announcing only one prefix: 3915 RIPE Region transit ASes present in the Internet Routing Table: 1230 Average RIPE Region AS path length visible: 5.1 Max RIPE Region AS path length visible: 25 Number of RIPE addresses announced to Internet: 228403968 Equivalent to 13 /8s, 157 /16s and 43 /24s Percentage of available RIPE address space announced: 68.1

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 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: 10109 Total LACNIC prefixes after maximum aggregation: 3395 Prefixes being announced from the LACNIC address blocks: 8324 Unique aggregates announced from the LACNIC address blocks: 4801 LACNIC Region origin ASes present in the Internet Routing Table: 661 LACNIC Region origin ASes announcing only one prefix: 208 LACNIC Region transit ASes present in the Internet Routing Table: 125 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 24 Number of LACNIC addresses announced to Internet: 23143168 Equivalent to 1 /8s, 97 /16s and 35 /24s Percentage of available LACNIC address space announced: 34.5

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: 1836 Total AfriNIC prefixes after maximum aggregation: 856 Prefixes being announced from the AfriNIC address blocks: 1192 Unique aggregates announced from the AfriNIC address blocks: 810 AfriNIC Region origin ASes present in the Internet Routing Table: 145 AfriNIC Region origin ASes announcing only one prefix: 46 AfriNIC Region transit ASes present in the Internet Routing Table: 27 Average AfriNIC Region AS path length visible: 4.5 Max AfriNIC Region AS path length visible: 12 Number of AfriNIC addresses announced to Internet: 2902272 Equivalent to 0 /8s, 44 /16s and 73 /24s Percentage of available AfriNIC address space announced: 8.6

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 1014 6467 205 CHINANET-BACKBONE 9583 844 77 12 Sify Limited 1221 664 1364 474 Telstra Pty Ltd 4766 659 3928 289 Korea Telecom (KIX) 4755 604 256 58 Videsh Sanchar Nigam Ltd. Aut 7545 512 108 71 TPG Internet Pty Ltd 17676 475 6853 99 Softbank BB Corp. 17488 430 26 11 Hathway IP Over Cable Interne 9498 429 212 68 BHARTI BT INTERNET LTD. 9443 399 89 85 Primus Telecommunications 4802 349 74 160 Wantree Development 2907 338 1763 315 SINET Japan 9929 331 217 49 China Netcom Corp. 7474 324 226 223 SingTel Optus Pty Ltd 17557 308 24 161 Pakistan Telecom 17974 287 69 23 PT TELEKOMUNIKASI INDONESIA 18101 282 68 19 Reliance Infocom Ltd Internet 4780 281 226 16 Digital United Inc. 9837 273 78 172 Powertel Ltd 9800 255 410 67 CHINA UNICOM

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

ASN No of nets /20 equiv MaxAgg Description 7018 1463 6314 959 AT&T WorldNet Services 4323 1194 722 235 Time Warner Telecom 174 1053 5826 970 Cogent Communications 721 1031 21938 309 DLA Systems Automation Center 701 973 8118 817 UUNET Technologies, Inc. 6197 969 434 506 BellSouth Network Solutions, 2386 913 517 687 AT&T Data Communications Serv 18566 886 240 7 Covad Communications 1239 847 2804 602 Sprint 209 656 3605 523 Qwest 20115 654 534 338 Charter Communications 11492 634 89 11 Cable One 22773 593 1477 29 Cox Communications, Inc. 19262 576 1631 141 Verizon Global Networks 852 572 1092 380 Telus Advanced Communications 19916 563 49 54 OLM LLC 855 562 243 65 Canadian Research Network 3356 526 10618 404 Level 3 Communications, LLC 3602 523 127 106 Sprint Canada, Inc. 6478 517 1435 284 AT&T Worldnet Services

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

ASN No of nets /20 equiv MaxAgg Description 702 590 1954 468 UUNET - Commercial IP service 3301 304 1071 290 TeliaNet Sweden 3320 287 3487 241 Deutsche Telekom AG 8220 273 474 267 COLT Telecommunications 680 244 2024 238 DFN-IP service G-WiN 3246 229 486 222 Song Networks 8708 224 274 208 Romania Data Systems S.A. 6746 204 51 175 Dynamic Network Technologies, 1257 189 712 170 SWIPnet Swedish IP Network 3269 182 1829 68 TELECOM ITALIA 5515 180 840 127 Sonera Solution Autonomous Sy 786 173 1794 173 The JANET IP Service 5400 167 328 136 BT Ignite European Backbone 8866 167 37 11 Bulgarian Telecommunication C 24863 164 38 9 LINKdotNET AS number 6830 162 669 33 UPC Distribution Services 3215 161 1325 81 France Telecom Transpac 3300 159 169 93 AUCS Communications Services 12479 154 322 5 Uni2 Autonomous System 25186 146 211 103 France Telecom Transpac's Tra

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

ASN No of nets /20 equiv MaxAgg Description 8151 472 744 209 UniNet S.A. de C.V. 22047 380 141 43 VTR PUNTO NET S.A. 16814 295 18 7 NSS, S.A. 11172 294 106 76 Servicios Alestra S.A de C.V 14117 181 11 6 Telefonica del Sur S.A. 13999 175 52 9 Mega Cable S.A. de C.V. 7303 153 73 18 Telecom Argentina Stet-France 6147 150 118 21 Telefonica Del Peru 11664 138 22 13 Keytech SA 11556 130 64 3 Cable-Wireless Panama 19169 128 8 21 Telconet 10481 121 48 8 Prima S.A. 6503 118 148 78 AVANTEL, S.A. 5639 112 12 9 Telecommunications Services o 21826 112 14 18 INTERCABLE 6505 106 88 79 Global One Communicaoes Ltda 11311 99 8 10 Sinectis S.A. 18822 98 7 10 TELEFONICA MANQUEHUE 14522 94 12 8 SatNet S.A. 4270 93 17 9 Red de Interconexion Universi

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

ASN No of nets /20 equiv MaxAgg Description 3741 272 812 230 The Internet Solution 8452 146 44 7 TEDATA 5536 122 8 16 Internet Egypt Network 2018 117 298 103 Tertiary Education Network 15475 103 84 4 Nile Online 2905 74 155 67 The Internetworking Company o 6713 69 71 10 Itissalat Al-MAGHRIB 24835 64 34 6 RAYA Telecom - Egypt 20928 61 16 2 Noor Advanced Technologies AS 5713 38 151 34 Telkom SA Ltd 33774 33 4 24 AS Number for Telecom Algeria 15706 31 8 3 Sudatel Internet Exchange Aut 23889 26 7 11 MAURITIUS TELECOM 8524 23 1 4 AUCEGYPT Autonomous System 16637 23 10 21 Johnnic e-Ventures 21280 23 4 4 Swift Global Kenya Ltd.Is an 10798 22 1 13 Standard Bank of South Africa 12455 18 6 5 Jambonet Autonomous system 12258 17 3 11 Vodacom Internet Company 15808 17 2 2 Communication Solutions Ltd i

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

ASN No of nets Net Savings Description 4323 1194 959 Time Warner Telecom 18566 886 879 Covad Communications 9583 844 832 Sify Limited 4134 1014 809 CHINANET-BACKBONE 721 1031 722 DLA Systems Automation Center 11492 634 623 Cable One 22773 593 564 Cox Communications, Inc. 4755 604 546 Videsh Sanchar Nigam Ltd. Aut 19916 563 509 OLM LLC 855 562 497 Canadian Research Network 5668 498 474 CenturyTel Internet Holdings, 6197 969 463 BellSouth Network Solutions, 7545 512 441 TPG Internet Pty Ltd 19262 576 435 Verizon Global Networks 17488 430 419 Hathway IP Over Cable Interne 3602 523 417 Sprint Canada, Inc. 17676 475 376 Softbank BB Corp. 4766 659 370 Korea Telecom (KIX) 9498 429 361 BHARTI BT INTERNET LTD. 6467 405 359 E.Spire Communications, Inc.

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

Bad AS Designation Network Transit AS Description 38976 UNALLOCATED 62.192.224.0/19 21166 Satgate autonomous s 38976 UNALLOCATED 62.192.232.0/24 21166 Satgate autonomous s 38972 UNALLOCATED 80.251.144.0/21 6828 Ekaterinburg Telegra 38972 UNALLOCATED 80.251.151.0/24 6828 Ekaterinburg Telegra 29544 UNALLOCATED 82.151.64.0/19 12956 Telefonica Data Auto 65501 PRIVATE 200.73.24.0/24 18747 IFX Communication Ve 65501 PRIVATE 200.73.25.0/24 18747 IFX Communication Ve 65501 PRIVATE 200.73.26.0/24 18747 IFX Communication Ve 65501 PRIVATE 200.73.27.0/24 18747 IFX Communication Ve 65501 PRIVATE 200.73.28.0/24 18747 IFX Communication Ve 65501 PRIVATE 200.73.85.0/24 18747 IFX Communication Ve 65501 PRIVATE 200.73.86.0/24 18747 IFX Communication Ve 65501 PRIVATE 200.73.87.0/24 18747 IFX Communication Ve 24413 UNALLOCATED 202.46.32.0/19 17623 China Netcom Corp. 24408 UNALLOCATED 203.119.26.0/24 9800 CHINA UNICOM 24408 UNALLOCATED 203.119.27.0/24 9800 CHINA UNICOM 24408 UNALLOCATED 203.119.28.0/24 9800 CHINA UNICOM 24406 UNALLOCATED 203.119.29.0/24 4808 CNCGROUP IP network:

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. 192.119.135.0/24 270 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 /8:19 /9:5 /10:8 /11:20 /12:85 /13:192 /14:344 /15:669 /16:8632 /17:2921 /18:4942 /19:11141 /20:12248 /21:10347 /22:13551 /23:14693 /24:95995 /25:334 /26:249 /27:195 /28:27 /29:12 /30:31 /31:3 /32:31

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

ASN No of nets Total ann. Description 18566 870 886 Covad Communications 6197 783 969 BellSouth Network Solutions, 7018 720 1463 AT&T WorldNet Services 9583 664 844 Sify Limited 2386 634 913 AT&T Data Communications Serv 11492 625 634 Cable One 4323 570 1194 Time Warner Telecom 19916 557 563 OLM LLC 4766 464 659 Korea Telecom (KIX) 855 434 562 Canadian Research Network 7011 402 466 Citizens Utilities 5668 387 498 CenturyTel Internet Holdings, 702 373 590 UUNET - Commercial IP service 1239 364 847 Sprint 6198 355 497 BellSouth Network Solutions, 6517 326 351 Yipes Communications, Inc. 15270 325 352 PaeTec.net -a division of Pae 22773 307 593 Cox Communications, Inc. 13609 285 328 Choice One Communications Inc 701 282 973 UUNET Technologies, Inc.

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

4:3 8:40 12:1626 13:1 15:11 16:3 17:3 18:3 20:42 24:711 25:1 30:2 32:67 38:188 40:54 44:3 47:3 52:4 55:1 56:3 57:33 58:104 59:104 60:169 61:760 62:810 63:1890 64:2921 65:2140 66:2875 67:593 68:693 69:1313 70:256 71:38 72:501 73:10 80:686 81:599 82:507 83:334 84:321 85:393 86:241 87:119 125:140 128:138 129:167 130:101 131:304 132:35 133:1 134:151 135:44 136:163 137:62 138:176 139:92 140:445 141:139 142:403 143:146 144:225 145:39 146:307 147:135 148:351 149:189 150:109 151:71 152:115 153:97 154:6 155:183 156:90 157:119 158:150 159:176 160:87 161:74 162:247 163:175 164:167 165:182 166:146 167:243 168:469 169:142 170:311 171:12 192:5717 193:3341 194:2455 195:1689 196:720 198:3896 199:3275 200:4318 201:475 202:6324 203:6603 204:3823 205:2109 206:2405 207:2935 208:2028 209:3435 210:1836 211:781 212:1246 213:1387 214:313 215:40 216:3779 217:1163 218:227 219:127 220:581 221:335 222:129

End of report