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Routing Table Report 00:00 GMT Wed 15 Nov, 2006
Analysis Summary ----------------
BGP routing table entries examined: 214271 Prefixes after maximum aggregation: 112290 Unique aggregates announced to Internet: 98243 Total ASes present in the Internet Routing Table: 23798 Origin-only ASes present in the Internet Routing Table: 20663 Origin ASes announcing only one prefix: 9969 Transit ASes present in the Internet Routing Table: 3135 Transit-only ASes present in the Internet Routing Table: 79 Average AS path length visible in the Internet Routing Table: 3.8 Max AS path length visible: 39 Max AS path prepend of ASN (14282) 36 Prefixes from unregistered ASNs in the Routing Table: 35 Unregistered ASNs in the Routing Table: 20 Special use prefixes present in the Routing Table: 3 Prefixes being announced from unallocated address space: 9 Number of addresses announced to Internet: 1651895420 Equivalent to 98 /8s, 117 /16s and 236 /24s Percentage of available address space announced: 44.6 Percentage of allocated address space announced: 63.2 Percentage of available address space allocated: 70.5 Total number of prefixes smaller than registry allocations: 111321
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 46328 Total APNIC prefixes after maximum aggregation: 18450 Prefixes being announced from the APNIC address blocks: 43850 Unique aggregates announced from the APNIC address blocks: 18494 APNIC Region origin ASes present in the Internet Routing Table: 2776 APNIC Region origin ASes announcing only one prefix: 777 APNIC Region transit ASes present in the Internet Routing Table: 428 Average APNIC Region AS path length visible: 4.3 Max APNIC Region AS path length visible: 18 Number of APNIC addresses announced to Internet: 268733904 Equivalent to 16 /8s, 4 /16s and 141 /24s Percentage of available APNIC address space announced: 84.0
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, 121/8, 122/7, 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: 108889 Total ARIN prefixes after maximum aggregation: 61421 Prefixes being announced from the ARIN address blocks: 80991 Unique aggregates announced from the ARIN address blocks: 28254 ARIN Region origin ASes present in the Internet Routing Table: 11201 ARIN Region origin ASes announcing only one prefix: 4259 ARIN Region transit ASes present in the Internet Routing Table: 1077 Average ARIN Region AS path length visible: 3.3 Max ARIN Region AS path length visible: 29 Number of ARIN addresses announced to Internet: 310596064 Equivalent to 18 /8s, 131 /16s and 81 /24s Percentage of available ARIN address space announced: 68.6
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, 39936-40959 ARIN Address Blocks 24/8, 63/8, 64/5, 72/6, 76/8, 96/6, 199/8, 204/6, 208/7 and 216/8
RIPE Region Analysis Summary ----------------------------
Prefixes being announced by RIPE Region ASes: 43211 Total RIPE prefixes after maximum aggregation: 27593 Prefixes being announced from the RIPE address blocks: 40271 Unique aggregates announced from the RIPE address blocks: 25665 RIPE Region origin ASes present in the Internet Routing Table: 8825 RIPE Region origin ASes announcing only one prefix: 4638 RIPE Region transit ASes present in the Internet Routing Table: 1432 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 19 Number of RIPE addresses announced to Internet: 274874752 Equivalent to 16 /8s, 98 /16s and 65 /24s Percentage of available RIPE address space announced: 74.5
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 40960-41983 RIPE Address Blocks 62/8, 77/8, 78/7, 80/5, 88/6, 193/8, 194/7, 212/7 and 217/8
LACNIC Region Analysis Summary ------------------------------
Prefixes being announced by LACNIC Region ASes: 13331 Total LACNIC prefixes after maximum aggregation: 3865 Prefixes being announced from the LACNIC address blocks: 11298 Unique aggregates announced from the LACNIC address blocks: 6553 LACNIC Region origin ASes present in the Internet Routing Table: 749 LACNIC Region origin ASes announcing only one prefix: 246 LACNIC Region transit ASes present in the Internet Routing Table: 134 Average LACNIC Region AS path length visible: 4.4 Max LACNIC Region AS path length visible: 39 Number of LACNIC addresses announced to Internet: 34168064 Equivalent to 2 /8s, 9 /16s and 93 /24s Percentage of available LACNIC address space announced: 50.9
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: 2478 Total AfriNIC prefixes after maximum aggregation: 961 Prefixes being announced from the AfriNIC address blocks: 1748 Unique aggregates announced from the AfriNIC address blocks: 991 AfriNIC Region origin ASes present in the Internet Routing Table: 168 AfriNIC Region origin ASes announcing only one prefix: 49 AfriNIC Region transit ASes present in the Internet Routing Table: 27 Average AfriNIC Region AS path length visible: 4.0 Max AfriNIC Region AS path length visible: 15 Number of AfriNIC addresses announced to Internet: 4489216 Equivalent to 0 /8s, 68 /16s and 128 /24s Percentage of available AfriNIC address space announced: 13.4
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 1260 8488 249 CHINANET-BACKBONE 4755 1033 383 66 Videsh Sanchar Nigam Ltd. Aut 9583 963 109 15 Sify Limited 9498 878 212 64 BHARTI BT INTERNET LTD. 23577 776 35 706 KRNIC 4766 738 4949 306 Korea Telecom (KIX) 4538 676 2846 35 China Education and Research 1221 628 1730 464 Telstra Pty Ltd 7545 547 124 73 TPG Internet Pty Ltd 17488 546 34 15 Hathway IP Over Cable Interne 17676 500 10934 64 Softbank BB Corp. 18101 475 86 22 Reliance Infocom Ltd Internet 9443 443 111 74 Primus Telecommunications 4812 440 749 63 China Telecom (Shanghai) 9942 440 82 131 COMindico Australia 17849 430 36 126 Telecommunications Technology 4802 413 86 150 Wantree Development 7474 369 210 227 SingTel Optus Pty Ltd 17557 368 32 179 Pakistan Telecom 17974 368 129 12 PT TELEKOMUNIKASI INDONESIA
RIPE Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 702 550 1913 429 UUNET - Commercial IP service 3292 466 1145 115 TDC Tele Danmark 3215 404 1964 93 France Telecom Transpac 24863 377 44 14 LINKdotNET AS number 3301 311 1200 295 TeliaNet Sweden 3320 300 4993 247 Deutsche Telekom AG 8220 274 472 262 COLT Telecommunications 6746 258 92 235 Dynamic Network Technologies, 680 250 2041 246 DFN-IP service G-WiN 5089 244 1657 52 NTL Group Limited 3246 234 475 220 Song Networks 9116 228 134 23 Goldenlines main autonomous s 1257 227 1073 172 SWIPnet Swedish IP Network 8708 221 279 208 Romania Data Systems S.A. 8551 216 198 28 Bezeq International 3269 208 2357 75 TELECOM ITALIA 30890 202 18 80 SC Kappa Invexim SRL 5416 189 13 9 BATELCO-BH 3300 181 171 96 AUCS Communications Services 6830 174 695 38 UPC Distribution Services
ARIN Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 701 4897 6705 768 UUNET Technologies, Inc. 7018 1545 6180 982 AT&T WorldNet Services 705 1439 555 638 UUNET Technologies, Inc. 2386 1111 570 739 AT&T Data Communications Serv 4323 1039 788 296 Time Warner Telecom 6197 1021 614 498 BellSouth Network Solutions, 18566 976 272 8 Covad Communications 174 951 6744 874 Cogent Communications 721 848 21923 304 DLA Systems Automation Center 1239 832 2747 580 Sprint 7046 818 252 670 UUNET Technologies, Inc. 11492 803 98 15 Cable One 19262 780 2394 176 Verizon Global Networks 20115 762 684 404 Charter Communications 22773 714 1743 41 Cox Communications, Inc. 209 698 3744 547 Qwest 7011 690 213 431 Citizens Utilities 852 605 1070 386 Telus Advanced Communications 19916 565 49 54 OLM LLC 5668 550 161 19 CenturyTel Internet Holdings,
Global Per AS Maximum Aggr summary ----------------------------------
ASN No of nets Net Savings Description 4134 1260 1011 CHINANET-BACKBONE 18566 976 968 Covad Communications 4755 1033 967 Videsh Sanchar Nigam Ltd. Aut 9583 963 948 Sify Limited 9498 878 814 BHARTI BT INTERNET LTD. 705 1439 801 UUNET Technologies, Inc. 11492 803 788 Cable One 4323 1039 743 Time Warner Telecom 22773 714 673 Cox Communications, Inc. 4538 676 641 China Education and Research 19262 780 604 Verizon Global Networks 7018 1545 563 AT&T WorldNet Services 721 848 544 DLA Systems Automation Center 8151 751 542 UniNet S.A. de C.V. 5668 550 531 CenturyTel Internet Holdings, 17488 546 531 Hathway IP Over Cable Interne 6197 1021 523 BellSouth Network Solutions, 19916 565 511 OLM LLC 11830 506 497 Instituto Costarricense de El 7545 547 474 TPG Internet Pty Ltd
List of Unregistered Origin ASNs (Global) -----------------------------------------
Bad AS Designation Network Transit AS Description 65075 PRIVATE 65.127.220.0/23 10886 University of Maryla 65515 PRIVATE 87.251.34.0/24 12859 Business Internet Tr 65515 PRIVATE 87.251.36.0/24 12859 Business Internet Tr 65010 PRIVATE 135.196.7.112/29 8190 VIATEL 65014 PRIVATE 135.196.176.96/27 8190 VIATEL 64513 PRIVATE 164.78.0.0/17 7610 SINGAPORE ADVANCE RE 64513 PRIVATE 164.78.0.0/16 7610 SINGAPORE ADVANCE RE 64513 PRIVATE 164.78.128.0/17 7610 SINGAPORE ADVANCE RE 64513 PRIVATE 164.78.247.0/24 7610 SINGAPORE ADVANCE RE 64513 PRIVATE 164.78.248.0/24 7610 SINGAPORE ADVANCE RE 64513 PRIVATE 164.78.249.0/24 7610 SINGAPORE ADVANCE RE 64513 PRIVATE 164.78.252.0/24 7610 SINGAPORE ADVANCE RE 65530 PRIVATE 192.147.68.0/24 2901 New Mexico Technet 65500 PRIVATE 192.239.84.0/24 10886 University of Maryla 65106 PRIVATE 195.219.161.0/27 6453 Teleglobe Inc. 65517 PRIVATE 198.32.176.0/24 293 Energy Sciences Netw 65000 PRIVATE 199.133.62.0/24 10886 University of Maryla 65000 PRIVATE 199.133.63.0/24 10886 University of Maryla 65000 PRIVATE 203.98.210.64/27 1803 SPRINT 24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com 65010 PRIVATE 212.2.12.160/28 8190 VIATEL 65016 PRIVATE 212.2.26.64/29 8190 VIATEL 65016 PRIVATE 212.2.31.184/30 8190 VIATEL 65515 PRIVATE 213.154.234.0/27 12859 Business Internet Tr 65517 PRIVATE 213.154.248.0/29 12859 Business Internet Tr 65517 PRIVATE 213.154.248.8/29 12859 Business Internet Tr 65018 PRIVATE 213.235.24.216/29 8190 VIATEL 65010 PRIVATE 213.235.29.224/29 8190 VIATEL 65013 PRIVATE 213.235.33.0/27 8190 VIATEL 65017 PRIVATE 213.235.48.96/28 8190 VIATEL 65001 PRIVATE 216.240.208.0/20 6325 Illinois Century Net 64512 PRIVATE 217.134.164.0/22 5428 Energis Communicatio 64512 PRIVATE 217.134.168.0/21 5428 Energis Communicatio 64512 PRIVATE 217.134.176.0/21 5428 Energis Communicatio 64512 PRIVATE 217.134.184.0/22 5428 Energis Communicatio
Prefixes from private and non-routed address space (Global) -----------------------------------------------------------
Prefix Origin AS Description 192.0.2.0/24 812 Rogers WAVE 192.168.83.0/24 292 Energy Sciences Network 198.18.0.0/15 8895 KACST/ISU Riyadh Autonomous S
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 172.33.1.0/24 7018 AT&T WorldNet Services 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 192.153.136.0/21 721 DLA Systems Automation Center 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 /8:20 /9:10 /10:13 /11:30 /12:112 /13:228 /14:399 /15:802 /16:9110 /17:3651 /18:5914 /19:12884 /20:14526 /21:13109 /22:16725 /23:18209 /24:115549 /25:744 /26:538 /27:469 /28:235 /29:225 /30:677 /31:3 /32:89
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 701 3648 4897 UUNET Technologies, Inc. 18566 959 976 Covad Communications 705 900 1439 UUNET Technologies, Inc. 2386 829 1111 AT&T Data Communications Serv 7018 817 1545 AT&T WorldNet Services 6197 801 1021 BellSouth Network Solutions, 9583 790 963 Sify Limited 11492 789 803 Cable One 23577 762 776 KRNIC 7011 595 690 Citizens Utilities 7046 570 818 UUNET Technologies, Inc. 19916 559 565 OLM LLC 4766 547 738 Korea Telecom (KIX) 9498 532 878 BHARTI BT INTERNET LTD. 4755 464 1033 Videsh Sanchar Nigam Ltd. Aut 15270 451 481 PaeTec.net -a division of Pae 855 436 535 Canadian Research Network 5668 426 550 CenturyTel Internet Holdings, 17849 416 430 Telecommunications Technology 1239 412 832 Sprint
Number of /24s announced per /8 block (Global) ----------------------------------------------
4:9 8:58 12:1662 13:1 15:15 16:3 17:3 18:4 20:39 24:839 25:1 32:176 38:267 40:57 41:21 44:2 47:8 52:4 53:1 55:1 56:3 57:54 58:269 59:344 60:215 61:959 62:1189 63:3354 64:3294 65:3616 66:3130 67:676 68:653 69:1714 70:406 71:109 72:1013 74:112 75:29 76:44 80:844 81:748 82:660 83:386 84:468 85:740 86:419 87:417 88:243 89:612 91:83 121:69 122:27 123:3 124:438 125:701 128:291 129:205 130:122 131:312 132:35 133:11 134:177 135:49 136:179 137:114 138:186 139:101 140:524 141:134 142:369 143:194 144:251 145:67 146:333 147:144 148:364 149:179 150:116 151:118 152:81 153:121 154:6 155:261 156:148 157:164 158:152 159:173 160:97 161:90 162:214 163:150 164:283 165:236 166:243 167:269 168:485 169:124 170:388 171:11 172:1 190:285 192:5823 193:3591 194:2826 195:2262 196:955 198:3955 199:3375 200:4574 201:952 202:7122 203:7201 204:4067 205:2225 206:2635 207:3156 208:3043 209:3696 210:2239 211:986 212:1430 213:1506 214:380 215:39 216:4290 217:1364 218:366 219:291 220:801 221:371 222:259
End of report
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