Routing Table Report 04:00 +10GMT Thu 01 Sep, 2005
Analysis Summary ----------------
BGP routing table entries examined: 169082 Prefixes after maximum aggregation: 97042 Unique aggregates announced to Internet: 81780 Total ASes present in the Internet Routing Table: 20373 Origin-only ASes present in the Internet Routing Table: 17745 Origin ASes announcing only one prefix: 8399 Transit ASes present in the Internet Routing Table: 2628 Transit-only ASes present in the Internet Routing Table: 69 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 26 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: 12 Number of addresses announced to Internet: 1414394624 Equivalent to 84 /8s, 77 /16s and 243 /24s Percentage of available address space announced: 38.2 Percentage of allocated address space announced: 57.5 Percentage of available address space allocated: 66.4 Total number of prefixes smaller than registry allocations: 80301
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 35079 Total APNIC prefixes after maximum aggregation: 15822 Prefixes being announced from the APNIC address blocks: 32951 Unique aggregates announced from the APNIC address blocks: 16516 APNIC Region origin ASes present in the Internet Routing Table: 2346 APNIC Region origin ASes announcing only one prefix: 697 APNIC Region transit ASes present in the Internet Routing Table: 352 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 18 Number of APNIC addresses announced to Internet: 196023552 Equivalent to 11 /8s, 175 /16s and 21 /24s Percentage of available APNIC address space announced: 72.7
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: 90215 Total ARIN prefixes after maximum aggregation: 54959 Prefixes being announced from the ARIN address blocks: 70567 Unique aggregates announced from the ARIN address blocks: 25937 ARIN Region origin ASes present in the Internet Routing Table: 10154 ARIN Region origin ASes announcing only one prefix: 3749 ARIN Region transit ASes present in the Internet Routing Table: 941 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 17 Number of ARIN addresses announced to Internet: 263146240 Equivalent to 15 /8s, 175 /16s and 75 /24s Percentage of available ARIN address space announced: 65.4
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: 32683 Total RIPE prefixes after maximum aggregation: 22298 Prefixes being announced from the RIPE address blocks: 29723 Unique aggregates announced from the RIPE address blocks: 20040 RIPE Region origin ASes present in the Internet Routing Table: 7041 RIPE Region origin ASes announcing only one prefix: 3715 RIPE Region transit ASes present in the Internet Routing Table: 1166 Average RIPE Region AS path length visible: 5.1 Max RIPE Region AS path length visible: 26 Number of RIPE addresses announced to Internet: 216798720 Equivalent to 12 /8s, 236 /16s and 22 /24s Percentage of available RIPE address space announced: 64.6
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, 88/6, 188/8, 193/8, 194/7, 212/7 and 217/8
LACNIC Region Analysis Summary ------------------------------
Prefixes being announced by LACNIC Region ASes: 9391 Total LACNIC prefixes after maximum aggregation: 3172 Prefixes being announced from the LACNIC address blocks: 7744 Unique aggregates announced from the LACNIC address blocks: 4455 LACNIC Region origin ASes present in the Internet Routing Table: 635 LACNIC Region origin ASes announcing only one prefix: 197 LACNIC Region transit ASes present in the Internet Routing Table: 118 Average LACNIC Region AS path length visible: 5.1 Max LACNIC Region AS path length visible: 21 Number of LACNIC addresses announced to Internet: 21903360 Equivalent to 1 /8s, 78 /16s and 56 /24s Percentage of available LACNIC address space announced: 32.6
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: 1691 Total AfriNIC prefixes after maximum aggregation: 791 Prefixes being announced from the AfriNIC address blocks: 1028 Unique aggregates announced from the AfriNIC address blocks: 787 AfriNIC Region origin ASes present in the Internet Routing Table: 135 AfriNIC Region origin ASes announcing only one prefix: 41 AfriNIC Region transit ASes present in the Internet Routing Table: 18 Average AfriNIC Region AS path length visible: 4.6 Max AfriNIC Region AS path length visible: 12 Number of AfriNIC addresses announced to Internet: 2647040 Equivalent to 0 /8s, 40 /16s and 100 /24s Percentage of available AfriNIC address space announced: 7.9
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 960 5596 196 CHINANET-BACKBONE 9583 781 77 14 Sify Limited 1221 748 1327 518 Telstra Pty Ltd 4755 700 259 64 Videsh Sanchar Nigam Ltd. Aut 4766 602 3927 285 Korea Telecom (KIX) 7545 518 108 73 TPG Internet Pty Ltd 17676 465 6739 99 Softbank BB Corp. 9443 386 84 79 Primus Telecommunications 2907 337 1788 314 SINET Japan 9498 337 115 59 BHARTI BT INTERNET LTD. 9929 334 224 46 China Netcom Corp. 17557 325 23 153 Pakistan Telecom 17488 319 19 8 Hathway IP Over Cable Interne 7474 317 257 220 SingTel Optus Pty Ltd 4802 298 53 159 Wantree Development 18302 296 109 160 SK Global co., Ltd 9837 273 79 176 Powertel Ltd 17974 265 65 14 PT TELEKOMUNIKASI INDONESIA 703 258 262 208 UUNET - Commercial IP service 9800 250 390 64 CHINA UNICOM
ARIN Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 7018 1510 6374 979 AT&T WorldNet Services 4323 1157 704 221 Time Warner Telecom 174 1115 5852 1020 Cogent Communications 721 1078 21922 310 DLA Systems Automation Center 701 1005 8153 852 UUNET Technologies, Inc. 6197 947 503 446 BellSouth Network Solutions, 2386 897 512 667 AT&T Data Communications Serv 1239 867 2851 612 Sprint 18566 840 224 20 Covad Communications 209 625 3454 489 Qwest 20115 623 487 327 Charter Communications 3356 573 10661 444 Level 3 Communications, LLC 27364 554 44 18 Armstrong Cable Services 3602 553 125 106 Sprint Canada, Inc. 3561 541 2417 422 Savvis 22773 503 1352 27 Cox Communications, Inc. 5668 498 115 23 CenturyTel Internet Holdings, 6198 470 417 228 BellSouth Network Solutions, 7132 454 4947 388 SBC Internet Services 19262 450 1370 120 Verizon Global Networks
RIPE Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 702 590 2000 481 UUNET - Commercial IP service 3301 297 1081 283 TeliaNet Sweden 3320 290 3232 239 Deutsche Telekom AG 8220 263 474 259 COLT Telecommunications 680 244 2040 240 DFN-IP service G-WiN 8708 232 261 213 Romania Data Systems S.A. 3246 229 469 222 Song Networks 1257 201 712 175 SWIPnet Swedish IP Network 9121 184 287 40 TTnet Autonomous System 6746 182 50 158 Dynamic Network Technologies, 5515 181 778 127 Sonera Solution Autonomous Sy 786 174 1794 174 The JANET IP Service 3269 172 1558 68 TELECOM ITALIA 5400 167 289 141 BT Ignite European Backbone 8866 166 20 7 Bulgarian Telecommunication C 6830 157 669 33 UPC Distribution Services 3300 155 184 90 AUCS Communications Services 25186 144 145 101 France Telecom Transpac's Tra 8551 138 120 20 Bezeq International 1273 137 174 96 Cable & Wireless Deutschland
LACNIC Region per AS prefix count summary -----------------------------------------
ASN No of nets /20 equiv MaxAgg Description 8151 395 650 167 UniNet S.A. de C.V. 16814 298 18 7 NSS, S.A. 11172 242 83 57 Servicios Alestra S.A de C.V 6147 194 110 21 Telefonica Del Peru 11664 191 20 23 Keytech SA 19632 173 14 5 Metropolis Intercom S.A. 22047 172 128 7 VTR PUNTO NET S.A. 14117 152 9 5 Telefonica del Sur S.A. 7303 143 68 15 Telecom Argentina Stet-France 11556 131 64 3 Cable-Wireless Panama 6505 122 89 86 Global One Communicaoes Ltda 19169 121 8 25 Telconet 10481 120 48 8 Prima S.A. 6503 114 148 75 AVANTEL, S.A. 18822 111 7 15 TELEFONICA MANQUEHUE 13999 108 52 9 Mega Cable S.A. de C.V. 5639 103 12 9 Telecommunications Services o 21826 103 13 15 INTERCABLE 11311 97 8 14 Sinectis S.A. 23216 95 24 19 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary ------------------------------------------
ASN No of nets /20 equiv MaxAgg Description 3741 264 693 222 The Internet Solution 5536 121 8 14 Internet Egypt Network 8452 106 32 7 TEDATA 2018 96 295 87 Tertiary Education Network 15475 88 84 4 Nile Online 2905 76 210 69 The Internetworking Company o 20928 58 16 2 Noor Advanced Technologies AS 24835 58 34 7 RAYA Telecom - Egypt 6713 51 54 8 Itissalat Al-MAGHRIB 5713 43 149 33 Telkom SA Ltd 9129 38 3 4 UUNET Kenya 12455 31 5 6 Jambonet Autonomous system 15706 31 8 3 Sudatel Internet Exchange Aut 8524 23 1 3 AUCEGYPT Autonomous System 16637 22 10 19 Johnnic e-Ventures 10798 21 1 12 Standard Bank of South Africa 21280 21 4 4 Swift Global Kenya Ltd.Is an 12258 17 3 11 Vodacom Internet Company 15804 17 2 1 AS of The Way Out Internet So 15808 17 2 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary ----------------------------------
ASN No of nets Net Savings Description 4323 1157 936 Time Warner Telecom 18566 840 820 Covad Communications 721 1078 768 DLA Systems Automation Center 9583 781 767 Sify Limited 4134 960 764 CHINANET-BACKBONE 4755 700 636 Videsh Sanchar Nigam Ltd. Aut 27364 554 536 Armstrong Cable Services 6197 947 501 BellSouth Network Solutions, 22773 503 476 Cox Communications, Inc. 5668 498 475 CenturyTel Internet Holdings, 3602 553 447 Sprint Canada, Inc. 7545 518 445 TPG Internet Pty Ltd 17676 465 366 Softbank BB Corp. 6467 428 355 E.Spire Communications, Inc. 19262 450 330 Verizon Global Networks 4766 602 317 Korea Telecom (KIX) 11492 324 317 Cable One 17488 319 311 Hathway IP Over Cable Interne 9443 386 307 Primus Telecommunications 15270 332 305 PaeTec.net -a division of Pae
List of Unregistered ASNs (Global) ----------------------------------
Bad AS Designation Network Transit AS Description 64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati 65511 PRIVATE 65.77.145.0/24 16605 Aaro Broadband Wirel 65230 PRIVATE 86.104.116.0/24 34050 Fiber Net Communicat 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 64943 PRIVATE 202.41.14.0/24 24110 Security Mail Pty Lt 64942 PRIVATE 202.41.15.0/24 24110 Security Mail Pty Lt 24413 UNALLOCATED 202.46.32.0/19 17623 China Netcom Corp. 65005 PRIVATE 203.200.197.0/24 4755 Videsh Sanchar Nigam 65500 PRIVATE 211.158.36.0/22 23851 Chongqing Broadband 65500 PRIVATE 211.158.40.0/22 23851 Chongqing Broadband 65500 PRIVATE 211.158.44.0/22 23851 Chongqing Broadband
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 /9:3 /10:8 /11:17 /12:77 /13:171 /14:320 /15:620 /16:8474 /17:2707 /18:4603 /19:10677 /20:11669 /21:9760 /22:13147 /23:14050 /24:91790 /25:327 /26:312 /27:174 /28:46 /29:22 /30:61 /31:1 /32:29
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 18566 825 840 Covad Communications 6197 770 947 BellSouth Network Solutions, 7018 716 1510 AT&T WorldNet Services 2386 608 897 AT&T Data Communications Serv 9583 602 781 Sify Limited 4323 554 1157 Time Warner Telecom 27364 545 554 Armstrong Cable Services 4766 419 602 Korea Telecom (KIX) 5668 405 498 CenturyTel Internet Holdings, 1239 365 867 Sprint 19916 364 370 OLM LLC 702 363 590 UUNET - Commercial IP service 7011 346 401 Citizens Utilities 6198 343 470 BellSouth Network Solutions, 11492 316 324 Cable One 6517 303 329 Yipes Communications, Inc. 15270 302 332 PaeTec.net -a division of Pae 701 285 1005 UUNET Technologies, Inc. 6467 282 428 E.Spire Communications, Inc. 18302 281 296 SK Global co., Ltd
Number of /24s announced per /8 block (Global) ----------------------------------------------
4:7 8:23 11:1 12:1575 13:1 15:9 16:2 17:3 18:3 20:22 24:1065 30:3 32:61 33:1 38:145 40:56 44:4 47:2 52:4 55:1 56:3 57:23 58:155 59:63 60:119 61:700 62:765 63:1887 64:2836 65:2070 66:2888 67:597 68:573 69:1167 70:172 71:12 72:348 80:612 81:535 82:464 83:301 84:227 85:298 86:93 87:9 128:144 129:168 130:95 131:292 132:37 133:1 134:143 135:42 136:151 137:65 138:165 139:61 140:374 141:105 142:145 143:135 144:212 145:34 146:289 147:115 148:298 149:182 150:107 151:61 152:108 153:88 154:5 155:144 156:80 157:96 158:167 159:170 160:85 161:72 162:221 163:112 164:188 165:195 166:153 167:247 168:438 169:142 170:317 171:8 190:1 192:5720 193:3272 194:2403 195:1573 196:653 198:3856 199:3284 200:4155 201:281 202:6057 203:6371 204:3764 205:2065 206:2457 207:2824 208:2030 209:3338 210:1686 211:796 212:1210 213:1339 214:288 215:35 216:3674 217:1121 218:216 219:136 220:442 221:258 222:123
End of report
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Routing Table Analysis