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Routing Table Report 04:00 +10GMT Sun 25 Sep, 2005
Analysis Summary ----------------
BGP routing table entries examined: 170547 Prefixes after maximum aggregation: 97205 Unique aggregates announced to Internet: 82107 Total ASes present in the Internet Routing Table: 20533 Origin-only ASes present in the Internet Routing Table: 17850 Origin ASes announcing only one prefix: 8447 Transit ASes present in the Internet Routing Table: 2683 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: 28 Prefixes from unregistered ASNs in the Routing Table: 19 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 12 Number of addresses announced to Internet: 1425270144 Equivalent to 84 /8s, 243 /16s and 229 /24s Percentage of available address space announced: 38.5 Percentage of allocated address space announced: 57.9 Percentage of available address space allocated: 66.4 Total number of prefixes smaller than registry allocations: 81408
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 35266 Total APNIC prefixes after maximum aggregation: 15536 Prefixes being announced from the APNIC address blocks: 33064 Unique aggregates announced from the APNIC address blocks: 16193 APNIC Region origin ASes present in the Internet Routing Table: 2360 APNIC Region origin ASes announcing only one prefix: 689 APNIC Region transit ASes present in the Internet Routing Table: 360 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 19 Number of APNIC addresses announced to Internet: 200171264 Equivalent to 11 /8s, 238 /16s and 95 /24s Percentage of available APNIC address space announced: 74.3
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: 91015 Total ARIN prefixes after maximum aggregation: 55223 Prefixes being announced from the ARIN address blocks: 71150 Unique aggregates announced from the ARIN address blocks: 26249 ARIN Region origin ASes present in the Internet Routing Table: 10208 ARIN Region origin ASes announcing only one prefix: 3759 ARIN Region transit ASes present in the Internet Routing Table: 954 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 21 Number of ARIN addresses announced to Internet: 270242304 Equivalent to 16 /8s, 27 /16s and 146 /24s Percentage of available ARIN address space announced: 67.1
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: 32940 Total RIPE prefixes after maximum aggregation: 22416 Prefixes being announced from the RIPE address blocks: 30039 Unique aggregates announced from the RIPE address blocks: 20168 RIPE Region origin ASes present in the Internet Routing Table: 7123 RIPE Region origin ASes announcing only one prefix: 3761 RIPE Region transit ASes present in the Internet Routing Table: 1192 Average RIPE Region AS path length visible: 5.1 Max RIPE Region AS path length visible: 28 Number of RIPE addresses announced to Internet: 218542784 Equivalent to 13 /8s, 6 /16s and 178 /24s Percentage of available RIPE address space announced: 65.1
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: 9578 Total LACNIC prefixes after maximum aggregation: 3214 Prefixes being announced from the LACNIC address blocks: 7927 Unique aggregates announced from the LACNIC address blocks: 4606 LACNIC Region origin ASes present in the Internet Routing Table: 637 LACNIC Region origin ASes announcing only one prefix: 196 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: 25 Number of LACNIC addresses announced to Internet: 22084608 Equivalent to 1 /8s, 80 /16s and 252 /24s Percentage of available LACNIC address space announced: 32.9
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: 1725 Total AfriNIC prefixes after maximum aggregation: 816 Prefixes being announced from the AfriNIC address blocks: 1066 Unique aggregates announced from the AfriNIC address blocks: 805 AfriNIC Region origin ASes present in the Internet Routing Table: 140 AfriNIC Region origin ASes announcing only one prefix: 42 AfriNIC Region transit ASes present in the Internet Routing Table: 19 Average AfriNIC Region AS path length visible: 4.5 Max AfriNIC Region AS path length visible: 12 Number of AfriNIC addresses announced to Internet: 2734592 Equivalent to 0 /8s, 41 /16s and 186 /24s Percentage of available AfriNIC address space announced: 8.1
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 984 6080 203 CHINANET-BACKBONE 9583 799 77 12 Sify Limited 1221 749 1328 516 Telstra Pty Ltd 4755 719 259 66 Videsh Sanchar Nigam Ltd. Aut 4766 611 3927 289 Korea Telecom (KIX) 7545 514 108 72 TPG Internet Pty Ltd 17676 468 6787 101 Softbank BB Corp. 9443 386 84 77 Primus Telecommunications 9498 337 147 58 BHARTI BT INTERNET LTD. 2907 336 1757 313 SINET Japan 17488 336 20 9 Hathway IP Over Cable Interne 9929 335 224 46 China Netcom Corp. 7474 313 257 216 SingTel Optus Pty Ltd 17974 302 66 13 PT TELEKOMUNIKASI INDONESIA 18302 293 109 155 SK Global co., Ltd 4802 288 65 155 Wantree Development 17557 288 20 150 Pakistan Telecom 9837 273 79 174 Powertel Ltd 703 254 263 207 UUNET - Commercial IP service 9800 252 394 66 CHINA UNICOM
ARIN Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 7018 1496 6359 980 AT&T WorldNet Services 4323 1173 705 228 Time Warner Telecom 721 1087 21922 308 DLA Systems Automation Center 174 1070 5850 1002 Cogent Communications 701 984 8119 829 UUNET Technologies, Inc. 6197 946 399 481 BellSouth Network Solutions, 2386 919 513 681 AT&T Data Communications Serv 1239 867 2852 610 Sprint 18566 854 240 7 Covad Communications 20115 650 508 330 Charter Communications 209 629 3585 498 Qwest 3356 575 10659 442 Level 3 Communications, LLC 3602 558 132 111 Sprint Canada, Inc. 27364 558 44 18 Armstrong Cable Services 3561 539 2409 419 Savvis 22773 538 1352 28 Cox Communications, Inc. 5668 490 115 23 CenturyTel Internet Holdings, 6198 472 417 228 BellSouth Network Solutions, 7132 466 4950 398 SBC Internet Services 19262 462 1399 120 Verizon Global Networks
RIPE Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 702 608 1994 480 UUNET - Commercial IP service 3301 300 1081 286 TeliaNet Sweden 3320 288 3230 239 Deutsche Telekom AG 8220 269 475 264 COLT Telecommunications 680 244 2040 240 DFN-IP service G-WiN 8708 237 262 217 Romania Data Systems S.A. 3246 228 476 221 Song Networks 9121 224 336 25 TTnet Autonomous System 1257 195 712 173 SWIPnet Swedish IP Network 5515 185 778 127 Sonera Solution Autonomous Sy 6746 185 50 161 Dynamic Network Technologies, 3269 176 1606 69 TELECOM ITALIA 786 174 1795 174 The JANET IP Service 5400 168 289 141 BT Ignite European Backbone 8866 165 37 9 Bulgarian Telecommunication C 6830 157 669 33 UPC Distribution Services 3300 155 169 90 AUCS Communications Services 25186 143 145 100 France Telecom Transpac's Tra 24863 138 37 6 LINKdotNET AS number 3215 137 1181 79 France Telecom Transpac
LACNIC Region per AS prefix count summary -----------------------------------------
ASN No of nets /20 equiv MaxAgg Description 8151 399 650 169 UniNet S.A. de C.V. 16814 298 18 7 NSS, S.A. 11172 249 83 61 Servicios Alestra S.A de C.V 11664 204 22 24 Keytech SA 6147 191 118 21 Telefonica Del Peru 19632 183 14 5 Metropolis Intercom S.A. 22047 171 128 7 VTR PUNTO NET S.A. 14117 156 10 5 Telefonica del Sur S.A. 7303 148 70 13 Telecom Argentina Stet-France 11556 132 64 2 Cable-Wireless Panama 6505 122 89 86 Global One Communicaoes Ltda 10481 121 48 8 Prima S.A. 19169 121 8 25 Telconet 13999 118 52 9 Mega Cable S.A. de C.V. 6503 112 148 75 AVANTEL, S.A. 18822 111 7 15 TELEFONICA MANQUEHUE 21826 105 13 16 INTERCABLE 5639 103 12 9 Telecommunications Services o 11311 97 8 14 Sinectis S.A. 23216 95 23 18 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary ------------------------------------------
ASN No of nets /20 equiv MaxAgg Description 3741 266 708 223 The Internet Solution 5536 123 8 12 Internet Egypt Network 2018 96 295 87 Tertiary Education Network 15475 83 84 4 Nile Online 8452 80 32 6 TEDATA 2905 79 211 71 The Internetworking Company o 20928 61 16 2 Noor Advanced Technologies AS 24835 59 34 7 RAYA Telecom - Egypt 6713 51 54 8 Itissalat Al-MAGHRIB 5713 38 149 33 Telkom SA Ltd 12455 36 6 3 Jambonet Autonomous system 15706 31 8 3 Sudatel Internet Exchange Aut 33774 30 4 20 AS Number for Telecom Algeria 8524 24 1 4 AUCEGYPT Autonomous System 16637 23 10 20 Johnnic e-Ventures 23889 23 5 9 MAURITIUS TELECOM 10798 22 1 13 Standard Bank of South Africa 21280 22 4 5 Swift Global Kenya Ltd.Is an 21491 18 17 2 UTL On-line is RF broadband I 12258 17 3 11 Vodacom Internet Company
Global Per AS Maximum Aggr summary ----------------------------------
ASN No of nets Net Savings Description 4323 1173 945 Time Warner Telecom 18566 854 847 Covad Communications 9583 799 787 Sify Limited 4134 984 781 CHINANET-BACKBONE 721 1087 779 DLA Systems Automation Center 4755 719 653 Videsh Sanchar Nigam Ltd. Aut 27364 558 540 Armstrong Cable Services 22773 538 510 Cox Communications, Inc. 5668 490 467 CenturyTel Internet Holdings, 6197 946 465 BellSouth Network Solutions, 3602 558 447 Sprint Canada, Inc. 7545 514 442 TPG Internet Pty Ltd 17676 468 367 Softbank BB Corp. 19262 462 342 Verizon Global Networks 11492 338 330 Cable One 17488 336 327 Hathway IP Over Cable Interne 4766 611 322 Korea Telecom (KIX) 20115 650 320 Charter Communications 6467 365 316 E.Spire Communications, Inc. 15270 343 315 PaeTec.net -a division of Pae
List of Unregistered ASNs (Global) ----------------------------------
Bad AS Designation Network Transit AS Description 65533 PRIVATE 22.22.22.0/24 17841 KRNIC 65506 PRIVATE 64.151.117.0/24 26228 ServePath, LLC 64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati 65511 PRIVATE 65.77.145.0/24 16605 Aaro Broadband Wirel 65205 PRIVATE 152.163.5.0/24 2056 America Online 65111 PRIVATE 194.165.131.0/24 8376 GO-JOR Autonomous Sy 65430 PRIVATE 196.44.128.0/19 20459 Telecom Namibia 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 24413 UNALLOCATED 202.46.32.0/19 17623 China Netcom Corp. 18428 UNALLOCATED 203.91.0.0/24 9505 Taiwan Internet Gate 65005 PRIVATE 203.200.197.0/24 4755 Videsh Sanchar Nigam 65500 PRIVATE 216.216.217.0/24 19029 New Edge Networks
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 192.84.205.0/24 719 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 /8:17 /9:5 /10:8 /11:17 /12:81 /13:177 /14:323 /15:630 /16:8508 /17:2786 /18:4702 /19:10790 /20:11836 /21:9865 /22:13243 /23:14137 /24:92466 /25:341 /26:274 /27:189 /28:45 /29:14 /30:59 /31:3 /32:31
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 18566 838 854 Covad Communications 6197 773 946 BellSouth Network Solutions, 7018 710 1496 AT&T WorldNet Services 2386 630 919 AT&T Data Communications Serv 9583 624 799 Sify Limited 4323 559 1173 Time Warner Telecom 27364 549 558 Armstrong Cable Services 4766 427 611 Korea Telecom (KIX) 5668 398 490 CenturyTel Internet Holdings, 702 384 608 UUNET - Commercial IP service 1239 368 867 Sprint 7011 363 421 Citizens Utilities 19916 363 369 OLM LLC 6198 345 472 BellSouth Network Solutions, 11492 330 338 Cable One 15270 313 343 PaeTec.net -a division of Pae 6517 311 337 Yipes Communications, Inc. 701 278 984 UUNET Technologies, Inc. 18302 278 293 SK Global co., Ltd 20115 274 650 Charter Communications
Number of /24s announced per /8 block (Global) ----------------------------------------------
4:5 8:24 12:1590 13:1 15:10 16:2 17:3 18:3 20:27 22:1 24:1081 30:3 32:65 38:157 40:54 44:4 47:2 52:4 55:1 56:3 57:23 58:146 59:69 60:140 61:760 62:766 63:1881 64:2861 65:2070 66:2909 67:614 68:618 69:1226 70:188 71:18 72:385 80:630 81:519 82:473 83:305 84:248 85:321 86:121 87:16 125:8 128:150 129:166 130:95 131:295 132:36 133:1 134:145 135:43 136:149 137:65 138:164 139:61 140:429 141:137 142:150 143:140 144:210 145:34 146:299 147:119 148:303 149:184 150:108 151:72 152:113 153:89 154:5 155:140 156:80 157:111 158:164 159:171 160:85 161:74 162:232 163:132 164:190 165:186 166:152 167:248 168:438 169:142 170:314 171:8 190:1 192:5668 193:3306 194:2407 195:1551 196:683 198:3867 199:3239 200:4203 201:331 202:5949 203:6313 204:3797 205:2065 206:2448 207:2794 208:2028 209:3375 210:1643 211:811 212:1183 213:1365 214:304 215:39 216:3715 217:1141 218:220 219:134 220:490 221:282 222:130
End of report
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