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Routing Table Report 04:00 +10GMT Sun 01 May, 2005
Analysis Summary ----------------
BGP routing table entries examined: 161053 Prefixes after maximum aggregation: 93707 Unique aggregates announced to Internet: 77609 Total ASes present in the Internet Routing Table: 19523 Origin-only ASes present in the Internet Routing Table: 16987 Origin ASes announcing only one prefix: 7959 Transit ASes present in the Internet Routing Table: 2536 Transit-only ASes present in the Internet Routing Table: 70 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 25 Prefixes from unregistered ASNs in the Routing Table: 13 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 14 Number of addresses announced to Internet: 1402978368 Equivalent to 83 /8s, 159 /16s and 192 /24s Percentage of available address space announced: 37.9 Percentage of allocated address space announced: 59.4 Percentage of available address space allocated: 63.7 Total number of prefixes smaller than registry allocations: 75414
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 32933 Total APNIC prefixes after maximum aggregation: 15515 Prefixes being announced from the APNIC address blocks: 30879 Unique aggregates announced from the APNIC address blocks: 15607 APNIC Region origin ASes present in the Internet Routing Table: 2252 APNIC Region origin ASes announcing only one prefix: 657 APNIC Region transit ASes present in the Internet Routing Table: 343 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 182436992 Equivalent to 10 /8s, 223 /16s and 196 /24s Percentage of available APNIC address space announced: 67.7
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575 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: 87433 Total ARIN prefixes after maximum aggregation: 53295 Prefixes being announced from the ARIN address blocks: 68190 Unique aggregates announced from the ARIN address blocks: 25084 ARIN Region origin ASes present in the Internet Routing Table: 9890 ARIN Region origin ASes announcing only one prefix: 3598 ARIN Region transit ASes present in the Internet Routing Table: 932 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 21 Number of ARIN addresses announced to Internet: 247435264 Equivalent to 14 /8s, 191 /16s and 144 /24s Percentage of available ARIN address space announced: 70.2
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 ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/6, 198/7, 204/6, 208/7 and 216/8
RIPE Region Analysis Summary ----------------------------
Prefixes being announced by RIPE Region ASes: 30654 Total RIPE prefixes after maximum aggregation: 21161 Prefixes being announced from the RIPE address blocks: 27681 Unique aggregates announced from the RIPE address blocks: 18447 RIPE Region origin ASes present in the Internet Routing Table: 6602 RIPE Region origin ASes announcing only one prefix: 3484 RIPE Region transit ASes present in the Internet Routing Table: 1105 Average RIPE Region AS path length visible: 5.1 Max RIPE Region AS path length visible: 25 Number of RIPE addresses announced to Internet: 202205888 Equivalent to 12 /8s, 13 /16s and 106 /24s Percentage of available RIPE address space announced: 70.9
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 RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7 and 217/8
LACNIC Region Analysis Summary ------------------------------
Prefixes being announced by LACNIC Region ASes: 8577 Total LACNIC prefixes after maximum aggregation: 3030 Prefixes being announced from the LACNIC address blocks: 6989 Unique aggregates announced from the LACNIC address blocks: 4068 LACNIC Region origin ASes present in the Internet Routing Table: 612 LACNIC Region origin ASes announcing only one prefix: 193 LACNIC Region transit ASes present in the Internet Routing Table: 109 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 21 Number of LACNIC addresses announced to Internet: 18511104 Equivalent to 1 /8s, 26 /16s and 117 /24s Percentage of available LACNIC address space announced: 55.2
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers LACNIC Address Blocks 200/7
AfriNIC Region Analysis Summary -------------------------------
Prefixes being announced by AfriNIC Region ASes: 1438 Total AfriNIC prefixes after maximum aggregation: 706 Prefixes being announced from the AfriNIC address blocks: 943 Unique aggregates announced from the AfriNIC address blocks: 749 AfriNIC Region origin ASes present in the Internet Routing Table: 100 AfriNIC Region origin ASes announcing only one prefix: 27 AfriNIC Region transit ASes present in the Internet Routing Table: 14 Average AfriNIC Region AS path length visible: 4.6 Max AfriNIC Region AS path length visible: 13 Number of AfriNIC addresses announced to Internet: 2224640 Equivalent to 0 /8s, 33 /16s and 242 /24s Percentage of available AfriNIC address space announced: 6.6
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 898 5035 183 CHINANET-BACKBONE 1221 773 1192 550 Telstra Pty Ltd 9583 729 53 71 Sify Limited 4766 585 3413 276 Korea Telecom (KIX) 4755 582 244 127 Videsh Sanchar Nigam Ltd. Aut 7545 491 86 70 TPG Internet Pty Ltd 17676 431 6509 73 Softbank BB Corp. 9443 370 77 76 Primus Telecommunications 9929 361 197 46 China Netcom Corp. 2907 345 1838 319 SINET Japan 17557 330 27 149 Pakistan Telecom 10036 313 28 284 C&M Communication Co. Ltd. 4808 309 251 169 CNCGROUP IP network: China169 7474 299 268 208 SingTel Optus Pty Ltd 9498 289 83 57 BHARTI BT INTERNET LTD. 4802 279 47 164 Wantree Development 2764 257 238 196 AAPT Limited 703 256 279 211 UUNET - Commercial IP service 17974 245 65 14 PT TELEKOMUNIKASI INDONESIA 9800 242 386 69 CHINA UNICOM
ARIN Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 7018 1491 6500 958 AT&T WorldNet Services 174 1173 5611 1004 Cogent Communications 721 1117 21763 313 DLA Systems Automation Center 4323 1110 665 225 Time Warner Telecom 701 1005 8250 855 UUNET Technologies, Inc. 1239 910 2874 659 Sprint 6197 897 381 415 BellSouth Network Solutions, 2386 844 516 629 AT&T Data Communications Serv 18566 801 224 7 Covad Communications 209 650 3456 492 Qwest 20115 609 505 307 Charter Communications 3356 584 10836 439 Level 3 Communications, LLC 3561 541 2357 414 Savvis 27364 539 43 18 Armstrong Cable Services 852 531 1095 392 Telus Advanced Communications 3602 504 122 94 Sprint Canada, Inc. 5668 488 115 25 CenturyTel Internet Holdings, 22773 482 1188 21 Cox Communications, Inc. 6198 469 542 202 BellSouth Network Solutions, 7132 443 8782 380 SBC Internet Services
RIPE Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 702 594 2003 486 UUNET - Commercial IP service 3320 302 2993 236 Deutsche Telekom AG 3301 297 1116 287 TeliaNet Sweden 8220 273 469 267 COLT Telecommunications 680 253 2041 238 DFN-IP service G-WiN 3246 233 491 228 Song Networks 8708 228 251 209 Romania Data Systems S.A. 1257 199 727 175 SWIPnet Swedish IP Network 5515 178 778 128 Sonera Solution Autonomous Sy 786 176 1794 176 The JANET IP Service 3269 167 1472 73 TELECOM ITALIA 6746 164 47 143 Dynamic Network Technologies, 8866 162 21 12 Bulgarian Telecommunication C 719 159 340 101 LANLINK autonomous system 3300 151 184 84 AUCS Communications Services 5400 144 284 128 BT Ignite European Backbone 25186 139 137 97 France Telecom Transpac's Tra 6830 137 513 27 UPC Distribution Services 2856 129 2305 116 BTnet UK Regional network 9051 128 8 34 INCONET Autonomous System
LACNIC Region per AS prefix count summary -----------------------------------------
ASN No of nets /20 equiv MaxAgg Description 8151 373 598 147 UniNet S.A. de C.V. 16814 266 16 7 NSS, S.A. 11172 223 99 54 Servicios Alestra S.A de C.V 6147 197 102 20 Telefonica Del Peru 11664 155 19 22 Keytech SA 7303 147 68 21 Telecom Argentina Stet-France 14117 135 8 4 Telefonica del Sur S.A. 6505 130 90 87 Global One Communicaoes Ltda 22047 124 96 6 VTR PUNTO NET S.A. 11556 110 55 6 Cable-Wireless Panama 13999 110 52 9 Mega Cable S.A. de C.V. 18822 105 7 15 TELEFONICA MANQUEHUE 6503 104 146 74 AVANTEL, S.A. 10481 101 40 7 Prima S.A. 19169 97 6 15 Telconet 23216 90 24 23 RAMtelecom Telecomunicaciones 21826 89 12 18 INTERCABLE 11311 85 8 21 Sinectis S.A. 5639 84 12 9 Telecommunications Services o 22927 82 73 22 TELEFONICA DE ARGENTINA
AfriNIC Region per AS prefix count summary ------------------------------------------
ASN No of nets /20 equiv MaxAgg Description 3741 270 637 225 The Internet Solution 5536 119 15 17 Internet Egypt Network 2018 90 295 87 Tertiary Education Network 20928 90 16 2 Noor Advanced Technologies AS 2905 75 267 69 The Internetworking Company o 8452 64 20 5 TEDATA 24835 60 34 6 RAYA Telecom - Egypt 9129 44 3 3 UUNET Kenya 12455 42 6 4 Jambonet Autonomous system 5713 35 141 28 Telkom SA Ltd 6713 35 54 9 Itissalat Al-MAGHRIB 8524 25 1 4 AUCEGYPT Autonomous System 15475 24 84 4 Nile Online 16637 22 10 19 Johnnic e-Ventures 10798 19 1 11 Standard Bank of South Africa 7460 18 3 5 LIA Internet Access 2609 17 26 3 Tunisia BackBone AS 12258 17 3 11 Vodacom Internet Company 21280 17 2 3 Swift Global Kenya Ltd.Is an 15808 16 1 1 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary ----------------------------------
ASN No of nets Net Savings Description 0 0 65530 * 4323 1110 885 Time Warner Telecom 721 1117 804 DLA Systems Automation Center 18566 801 794 Covad Communications 4134 898 715 CHINANET-BACKBONE 9583 729 658 Sify Limited 27364 539 521 Armstrong Cable Services 6197 897 482 BellSouth Network Solutions, 5668 488 463 CenturyTel Internet Holdings, 22773 482 461 Cox Communications, Inc. 4755 582 455 Videsh Sanchar Nigam Ltd. Aut 7545 491 421 TPG Internet Pty Ltd 3602 504 410 Sprint Canada, Inc. 6467 434 399 E.Spire Communications, Inc. 17676 431 358 Softbank BB Corp. 6140 399 327 ImpSat 9929 361 315 China Netcom Corp. 4766 585 309 Korea Telecom (KIX) 20115 609 302 Charter Communications 9443 370 294 Primus Telecommunications
List of Unregistered ASNs (Global) ----------------------------------
Bad AS Designation Network Transit AS Description 30999 UNALLOCATED 196.192.80.0/24 6774 BELGACOM 65004 PRIVATE 200.0.113.0/24 28477 Universidad Autonoma 65004 PRIVATE 200.4.0.0/24 28477 Universidad Autonoma 65004 PRIVATE 200.4.1.0/24 28477 Universidad Autonoma 65004 PRIVATE 200.4.2.0/24 28477 Universidad Autonoma 65004 PRIVATE 200.4.3.0/24 28477 Universidad Autonoma 65004 PRIVATE 200.4.4.0/24 28477 Universidad Autonoma 65004 PRIVATE 200.4.5.0/24 28477 Universidad Autonoma 65004 PRIVATE 200.4.6.0/24 28477 Universidad Autonoma 65005 PRIVATE 203.200.197.0/24 4755 Videsh Sanchar Nigam 65444 PRIVATE 212.25.125.0/24 8551 Bezeq International 65529 PRIVATE 216.21.199.0/24 14697 VDot.Net 65529 PRIVATE 216.152.237.0/24 14697 VDot.Net
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 172.32.0.0/24 7011 Citizens Utilities 172.122.28.0/24 210 Utah Education Network 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 192.84.205.0/24 719 LANLINK autonomous system 192.119.135.0/24 270 NASA 192.135.50.0/24 7018 AT&T WorldNet Services 192.172.0.0/19 721 DLA Systems Automation Center 192.200.100.0/24 7018 AT&T WorldNet Services
Number of prefixes announced per prefix length (Global) -------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:19 /9:3 /10:8 /11:15 /12:68 /13:154 /14:307 /15:584 /16:8375 /17:2533 /18:4365 /19:10248 /20:11074 /21:8935 /22:12316 /23:13290 /24:87855 /25:279 /26:269 /27:143 /28:75 /29:39 /30:70 /31:0 /32:29
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 18566 785 801 Covad Communications 6197 736 897 BellSouth Network Solutions, 7018 676 1491 AT&T WorldNet Services 2386 599 844 AT&T Data Communications Serv 9583 545 729 Sify Limited 27364 528 539 Armstrong Cable Services 4323 520 1110 Time Warner Telecom 5668 405 488 CenturyTel Internet Holdings, 4766 402 585 Korea Telecom (KIX) 1239 382 910 Sprint 702 366 594 UUNET - Commercial IP service 6198 339 469 BellSouth Network Solutions, 6467 313 434 E.Spire Communications, Inc. 10036 313 313 C&M Communication Co. Ltd. 7011 296 346 Citizens Utilities 6517 295 318 Yipes Communications, Inc. 9929 282 361 China Netcom Corp. 11456 276 318 Carolina Online, Inc. 15270 258 278 PaeTec.net -a division of Pae 701 249 1005 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global) ----------------------------------------------
4:4 8:12 12:1527 13:1 15:9 16:2 17:3 18:4 20:4 24:978 30:2 32:69 33:4 38:109 40:53 44:3 47:2 52:4 55:2 56:3 57:23 58:42 59:28 60:22 61:786 62:595 63:1872 64:2683 65:2064 66:2795 67:561 68:519 69:993 70:95 71:6 72:167 80:557 81:547 82:396 83:250 84:171 85:182 86:14 128:142 129:158 130:84 131:279 132:34 133:1 134:148 135:40 136:191 137:65 138:171 139:55 140:191 141:106 142:142 143:134 144:167 145:33 146:276 147:104 148:296 149:168 150:97 151:65 152:107 153:87 154:5 155:142 156:77 157:93 158:165 159:174 160:77 161:61 162:202 163:83 164:207 165:177 166:154 167:231 168:417 169:140 170:316 171:8 172:2 192:5704 193:3178 194:2340 195:1545 196:652 198:3941 199:3280 200:3889 201:116 202:5520 203:6131 204:3816 205:2021 206:2464 207:2756 208:2056 209:3271 210:1698 211:840 212:1191 213:1285 214:277 215:32 216:3513 217:1139 218:191 219:105 220:375 221:203 222:91
End of report
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