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Routing Table Report 04:00 +10GMT Tue 22 Mar, 2005
Analysis Summary ----------------
BGP routing table entries examined: 158534 Prefixes after maximum aggregation: 92560 Unique aggregates announced to Internet: 76090 Total ASes present in the Internet Routing Table: 19215 Origin-only ASes present in the Internet Routing Table: 16716 Origin ASes announcing only one prefix: 7793 Transit ASes present in the Internet Routing Table: 2499 Transit-only ASes present in the Internet Routing Table: 79 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 21 Prefixes from unregistered ASNs in the Routing Table: 30 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 14 Number of addresses announced to Internet: 1403353188 Equivalent to 83 /8s, 165 /16s and 120 /24s Percentage of available address space announced: 37.9 Percentage of allocated address space announced: 59.9 Percentage of available address space allocated: 63.2 Total number of prefixes smaller than registry allocations: 73779
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 31789 Total APNIC prefixes after maximum aggregation: 15203 Prefixes being announced from the APNIC address blocks: 29827 Unique aggregates announced from the APNIC address blocks: 15234 APNIC Region origin ASes present in the Internet Routing Table: 2230 APNIC Region origin ASes announcing only one prefix: 652 APNIC Region transit ASes present in the Internet Routing Table: 333 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 178738624 Equivalent to 10 /8s, 167 /16s and 85 /24s Percentage of available APNIC address space announced: 66.3
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 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: 88243 Total ARIN prefixes after maximum aggregation: 53507 Prefixes being announced from the ARIN address blocks: 67616 Unique aggregates announced from the ARIN address blocks: 24701 ARIN Region origin ASes present in the Internet Routing Table: 9960 ARIN Region origin ASes announcing only one prefix: 3607 ARIN Region transit ASes present in the Internet Routing Table: 952 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 17 Number of ARIN addresses announced to Internet: 242239232 Equivalent to 14 /8s, 112 /16s and 71 /24s Percentage of available ARIN address space announced: 72.2
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 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 ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6, 208/7 and 216/8
RIPE Region Analysis Summary ----------------------------
Prefixes being announced by RIPE Region ASes: 30172 Total RIPE prefixes after maximum aggregation: 20736 Prefixes being announced from the RIPE address blocks: 27116 Unique aggregates announced from the RIPE address blocks: 17951 RIPE Region origin ASes present in the Internet Routing Table: 6431 RIPE Region origin ASes announcing only one prefix: 3386 RIPE Region transit ASes present in the Internet Routing Table: 1085 Average RIPE Region AS path length visible: 5.1 Max RIPE Region AS path length visible: 19 Number of RIPE addresses announced to Internet: 195297232 Equivalent to 11 /8s, 163 /16s and 255 /24s Percentage of available RIPE address space announced: 68.5
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 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: 6934 Total LACNIC prefixes after maximum aggregation: 2416 Prefixes being announced from the LACNIC address blocks: 6907 Unique aggregates announced from the LACNIC address blocks: 3967 LACNIC Region origin ASes present in the Internet Routing Table: 427 LACNIC Region origin ASes announcing only one prefix: 126 LACNIC Region transit ASes present in the Internet Routing Table: 83 Average LACNIC Region AS path length visible: 5.1 Max LACNIC Region AS path length visible: 21 Number of LACNIC addresses announced to Internet: 17804800 Equivalent to 1 /8s, 15 /16s and 174 /24s Percentage of available LACNIC address space announced: 53.1
LACNIC AS Blocks 26592-26623, 27648-28671 LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary ----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1368 Total AfriNIC prefixes after maximum aggregation: 698 Prefixes being announced from the AfriNIC address blocks: 896 Unique aggregates announced from the AfriNIC address blocks: 718 AfriNIC Region origin ASes present in the Internet Routing Table: 95 AfriNIC Region origin ASes announcing only one prefix: 22 AfriNIC Region transit ASes present in the Internet Routing Table: 14 Average AfriNIC Region AS path length visible: 4.5 Max AfriNIC Region AS path length visible: 12 Number of AfriNIC addresses announced to Internet: 2187520 Equivalent to 0 /8s, 33 /16s and 97 /24s Percentage of available AfriNIC address space announced: 13.0
AfriNIC AS Blocks <none> AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary ----------------------------------------
ASN No of nets /20 equiv MaxAgg Description 4134 892 4761 177 Data Communications Bureau 1221 785 1187 558 Telstra Pty Ltd 9583 624 50 34 Satyam Infoway Ltd., 4766 582 3415 276 Korea Internet Exchange for " 4755 498 242 102 Videsh Sanchar Nigam Ltd. Aut 7545 477 86 70 TPG Internet Pty Ltd 17676 417 6300 76 XTAGE CORPORATION 9443 374 77 79 Primus Telecommunications 9929 358 175 45 China Netcom Corp. 2907 347 1823 321 SINET Japan 17557 334 25 158 Pakistan Telecom 10036 300 27 273 C&M Communication Co. Ltd. 4808 299 245 160 CHINANET core WAN North 7474 290 267 210 Optus Communications Pty Ltd 4802 282 47 166 Wantree Development 9498 260 82 53 BHARTI BT INTERNET LTD. 2764 256 238 204 connect.com.au pty ltd 703 248 279 206 UUNET 17974 235 63 12 PT TELEKOMUNIKASI INDONESIA 9800 233 386 68 CHINA UNICOM
ARIN Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 7018 1468 6562 964 AT&T WorldNet Services 721 1120 21763 314 DLA Systems Automation Center 4323 1067 651 219 Time Warner Telecom 701 1030 8288 876 UUNET Technologies, Inc. 174 924 5569 783 PSINet Inc. 1239 914 2868 660 Sprint 6197 878 383 411 BellSouth Network Solutions, 2386 832 500 613 AT&T Data Communications Serv 18566 778 208 6 Covad Communications 209 639 3475 502 Qwest 20115 589 489 306 Charter Communications 3356 577 10863 428 Level 3 Communications, LLC 852 541 1095 401 Telus Advanced Communications 3561 538 2370 414 Cable & Wireless USA 3602 506 121 93 Sprint Canada, Inc. 6478 500 833 108 AT&T Worldnet Services 22773 482 1218 25 Cox Communications, Inc. Atla 6198 469 554 196 BellSouth Network Solutions, 27364 465 43 18 Armstrong Cable Services 5668 460 115 17 Century Telephone
RIPE Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 702 605 2005 495 UUNET - Commercial IP service 3320 296 2992 231 Deutsche Telekom AG 3301 289 1112 279 TeliaNet Sweden 8220 276 466 270 COLT Internet - International 680 254 2041 239 DFN-IP service G-WiN 3246 230 475 224 Song Networks 8708 226 251 205 Romania Data Systems S.A. 13083 218 51 8 Mannesmann Datenverarbeitung 1257 200 711 176 SWIPnet Swedish IP Network 9121 199 237 41 TTnet Autonomous System 5515 178 778 128 Sonera Solution Autonomous Sy 786 176 1794 176 The JANET IP Service 8866 173 19 20 Bulgarian Telecommunication C 3269 166 1456 72 TELECOM ITALIA 6746 162 47 142 Dynamic Network Technologies, 719 157 322 99 LANLINK autonomous system 3300 152 184 85 AUCS Communications Services 6830 143 529 28 UPC Distribution Services 25186 143 138 101 France Telecom Transpac's Tra 5400 142 281 124 BT Ignite European Backbone
LACNIC Region per AS prefix count summary -----------------------------------------
ASN No of nets /20 equiv MaxAgg Description 6140 385 140 72 ImpSat 8151 340 489 142 UniNet S.A. de C.V. 16814 233 14 6 NSS, S.A. 11172 214 99 52 Servicios Alestra S.A de C.V 6147 205 102 20 Telefonica Del Peru 11664 148 19 23 Keytech SA 7303 147 67 31 Telecom Argentina Stet-France 6505 132 90 88 Global One Communicaoes Ltda 14117 118 7 5 Telefonica del Sur S.A. 11992 107 9 31 Integrated Systems 6503 103 145 73 AVANTEL, S.A. 13999 100 52 9 Mega Cable S.A. de C.V. 11556 98 49 4 Cable-Wireless Panama 6535 87 7 23 Chilesat Servicios Empresari 11311 86 8 22 Sinectis S.A. 5639 84 12 9 Telecommunications Services o 10481 80 32 7 Prima S.A. 4270 77 18 9 Red de Interconexion Universi 15311 77 24 36 Telefonica Empresas 7738 75 298 16 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary ------------------------------------------
ASN No of nets /20 equiv MaxAgg Description 3741 268 635 225 The Internet Solution 5536 113 15 19 Internet Egypt Network 2018 90 295 87 Tertiary Education Network 20928 88 16 2 Noor Advanced Technologies AS 2905 74 266 68 The Internetworking Company o 8452 55 20 5 TEDATA 24835 55 34 6 RAYA Telecom - Egypt 12455 41 7 4 Jambonet Autonomous system 9129 39 3 2 UUNET Kenya 6713 35 54 9 Itissalat Al-MAGHRIB 5713 27 141 24 Telkom SA Ltd 8524 24 1 4 AUCEGYPT Autonomous System 16637 22 10 19 Johnnic e-Ventures 10798 19 1 11 Standard Bank of South Africa 12258 18 3 12 Vodacom Internet Company 21280 18 2 3 Swift Global Kenya Ltd.Is an 8346 17 10 11 SONATEL-AS Autonomous System 15808 16 1 1 Communication Solutions Ltd i 21491 16 1 3 UTL On-line is RF broadband I 15706 15 4 2 Sudatel Internet Exchange Aut
Global Per AS Maximum Aggr summary ----------------------------------
ASN No of nets Net Savings Description 4323 1067 848 Time Warner Telecom 721 1120 806 DLA Systems Automation Center 18566 778 772 Covad Communications 4134 892 715 Data Communications Bureau 9583 624 590 Satyam Infoway Ltd., 6197 878 467 BellSouth Network Solutions, 22773 482 457 Cox Communications, Inc. Atla 27364 465 447 Armstrong Cable Services 5668 460 443 Century Telephone 3602 506 413 Sprint Canada, Inc. 7545 477 407 TPG Internet Pty Ltd 4755 498 396 Videsh Sanchar Nigam Ltd. Aut 6478 500 392 AT&T Worldnet Services 6467 407 374 E.Spire Communications, Inc. 17676 417 341 XTAGE CORPORATION 6140 385 313 ImpSat 9929 358 313 China Netcom Corp. 4766 582 306 Korea Internet Exchange for " 9443 374 295 Primus Telecommunications 20115 589 283 Charter Communications
List of Unregistered ASNs (Global) ----------------------------------
Bad AS Designation Network Transit AS Description 65535 PRIVATE 64.111.161.0/24 33205 KMC Telecom Solution 65535 PRIVATE 64.111.162.0/24 33205 KMC Telecom Solution 65535 PRIVATE 64.111.164.0/24 33205 KMC Telecom Solution 65535 PRIVATE 64.111.165.0/24 33205 KMC Telecom Solution 65535 PRIVATE 64.111.167.0/24 33205 KMC Telecom Solution 65535 PRIVATE 64.111.169.0/24 33205 KMC Telecom Solution 65535 PRIVATE 64.111.170.0/24 33205 KMC Telecom Solution 65535 PRIVATE 64.111.171.0/24 33205 KMC Telecom Solution 65535 PRIVATE 64.111.172.0/24 33205 KMC Telecom Solution 65535 PRIVATE 64.111.173.0/24 33205 KMC Telecom Solution 65535 PRIVATE 64.111.174.0/24 33205 KMC Telecom Solution 65535 PRIVATE 64.111.175.0/24 33205 KMC Telecom Solution 64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati 30998 UNALLOCATED 65.120.56.0/21 209 Qwest 40439 UNALLOCATED 66.194.101.0/24 30439 Memphis Daily News 64500 RESERVED 85.114.96.0/21 1680 NetVision Ltd. 65503 PRIVATE 193.125.183.0/24 3217 SIMBIRSK 30998 UNALLOCATED 196.207.0.0/20 209 Qwest 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 33267 UNALLOCATED 206.205.135.0/24 2828 XO Communications 65215 PRIVATE 207.35.45.0/24 577 Bell Advanced Commun 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 1.0.0.0/8 705 UUNET Technologies, Inc. 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 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 /8:20 /9:3 /10:8 /11:14 /12:62 /13:152 /14:305 /15:574 /16:8315 /17:2486 /18:4221 /19:10250 /20:11051 /21:8725 /22:12104 /23:13194 /24:86195 /25:263 /26:261 /27:109 /28:62 /29:26 /30:91 /31:0 /32:43
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 18566 763 778 Covad Communications 6197 719 878 BellSouth Network Solutions, 7018 640 1468 AT&T WorldNet Services 2386 586 832 AT&T Data Communications Serv 4323 490 1067 Time Warner Telecom 27364 450 465 Armstrong Cable Services 9583 446 624 Satyam Infoway Ltd., 4766 399 582 Korea Internet Exchange for " 5668 383 460 Century Telephone 1239 378 914 Sprint 702 368 605 UUNET - Commercial IP service 6198 337 469 BellSouth Network Solutions, 6467 304 407 E.Spire Communications, Inc. 10036 300 300 C&M Communication Co. Ltd. 6517 289 311 Yipes Communications, Inc. 9929 282 358 China Netcom Corp. 7011 280 329 Citizens Utilities 11456 263 310 Carolina Online, Inc. 701 250 1030 UUNET Technologies, Inc. 15270 247 266 PaeTec.net -a division of Pae
Number of /24s announced per /8 block (Global) ----------------------------------------------
4:4 8:10 12:1508 13:1 15:9 16:2 17:3 18:4 20:4 24:740 32:64 33:4 38:102 40:55 44:3 47:2 52:3 55:2 56:3 57:23 58:4 59:12 60:25 61:744 62:528 63:1878 64:2625 65:2072 66:2736 67:510 68:506 69:944 70:73 71:5 72:117 80:535 81:514 82:348 83:248 84:130 85:177 128:146 129:158 130:89 131:281 132:33 133:1 134:143 135:39 136:190 137:66 138:159 139:50 140:195 141:104 142:139 143:130 144:172 145:45 146:281 147:98 148:294 149:167 150:97 151:63 152:110 153:85 154:3 155:143 156:61 157:87 158:167 159:167 160:71 161:60 162:203 163:87 164:215 165:153 166:127 167:229 168:409 169:135 170:312 171:8 172:1 192:5661 193:3113 194:2306 195:1606 196:625 198:3921 199:3264 200:4047 201:57 202:5331 203:6110 204:3723 205:2022 206:2358 207:2709 208:2064 209:3204 210:1633 211:823 212:1179 213:1273 214:242 215:31 216:3673 217:1124 218:190 219:102 220:369 221:114 222:71
End of report
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