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Routing Table Report 00:00 GMT Fri 11 Aug, 2006
Analysis Summary ----------------
BGP routing table entries examined: 208608 Prefixes after maximum aggregation: 108792 Unique aggregates announced to Internet: 95091 Total ASes present in the Internet Routing Table: 22883 Origin-only ASes present in the Internet Routing Table: 19926 Origin ASes announcing only one prefix: 9482 Transit ASes present in the Internet Routing Table: 2957 Transit-only ASes present in the Internet Routing Table: 68 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 27 Max AS path prepend of ASN (24076) 20 Prefixes from unregistered ASNs in the Routing Table: 43 Unregistered ASNs in the Routing Table: 17 Special use prefixes present in the Routing Table: 6 Prefixes being announced from unallocated address space: 11 Number of addresses announced to Internet: 1579674877 Equivalent to 94 /8s, 39 /16s and 236 /24s Percentage of available address space announced: 42.6 Percentage of allocated address space announced: 61.6 Percentage of available address space allocated: 69.1 Total number of prefixes smaller than registry allocations: 107568
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 44002 Total APNIC prefixes after maximum aggregation: 17606 Prefixes being announced from the APNIC address blocks: 41586 Unique aggregates announced from the APNIC address blocks: 18636 APNIC Region origin ASes present in the Internet Routing Table: 2672 APNIC Region origin ASes announcing only one prefix: 748 APNIC Region transit ASes present in the Internet Routing Table: 408 Average APNIC Region AS path length visible: 6.0 Max APNIC Region AS path length visible: 27 Number of APNIC addresses announced to Internet: 244775044 Equivalent to 14 /8s, 150 /16s and 248 /24s Percentage of available APNIC address space announced: 76.5
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: 109739 Total ARIN prefixes after maximum aggregation: 60162 Prefixes being announced from the ARIN address blocks: 81722 Unique aggregates announced from the ARIN address blocks: 27278 ARIN Region origin ASes present in the Internet Routing Table: 10895 ARIN Region origin ASes announcing only one prefix: 4083 ARIN Region transit ASes present in the Internet Routing Table: 1001 Average ARIN Region AS path length visible: 3.8 Max ARIN Region AS path length visible: 21 Number of ARIN addresses announced to Internet: 299172897 Equivalent to 17 /8s, 213 /16s and 4 /24s Percentage of available ARIN address space announced: 77.5
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, 199/8, 204/6, 208/7 and 216/8
RIPE Region Analysis Summary ----------------------------
Prefixes being announced by RIPE Region ASes: 40450 Total RIPE prefixes after maximum aggregation: 26365 Prefixes being announced from the RIPE address blocks: 37790 Unique aggregates announced from the RIPE address blocks: 24340 RIPE Region origin ASes present in the Internet Routing Table: 8378 RIPE Region origin ASes announcing only one prefix: 4368 RIPE Region transit ASes present in the Internet Routing Table: 1363 Average RIPE Region AS path length visible: 3.6 Max RIPE Region AS path length visible: 18 Number of RIPE addresses announced to Internet: 261491424 Equivalent to 15 /8s, 150 /16s and 10 /24s Percentage of available RIPE address space announced: 82.0
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, 80/5, 88/6, 193/8, 194/7, 212/7 and 217/8
LACNIC Region Analysis Summary ------------------------------
Prefixes being announced by LACNIC Region ASes: 12042 Total LACNIC prefixes after maximum aggregation: 3722 Prefixes being announced from the LACNIC address blocks: 10134 Unique aggregates announced from the LACNIC address blocks: 5813 LACNIC Region origin ASes present in the Internet Routing Table: 708 LACNIC Region origin ASes announcing only one prefix: 238 LACNIC Region transit ASes present in the Internet Routing Table: 127 Average LACNIC Region AS path length visible: 6.2 Max LACNIC Region AS path length visible: 21 Number of LACNIC addresses announced to Internet: 31705344 Equivalent to 1 /8s, 227 /16s and 201 /24s Percentage of available LACNIC address space announced: 47.2
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: 2333 Total AfriNIC prefixes after maximum aggregation: 937 Prefixes being announced from the AfriNIC address blocks: 1602 Unique aggregates announced from the AfriNIC address blocks: 981 AfriNIC Region origin ASes present in the Internet Routing Table: 162 AfriNIC Region origin ASes announcing only one prefix: 45 AfriNIC Region transit ASes present in the Internet Routing Table: 24 Average AfriNIC Region AS path length visible: 3.3 Max AfriNIC Region AS path length visible: 16 Number of AfriNIC addresses announced to Internet: 4206848 Equivalent to 0 /8s, 64 /16s and 49 /24s Percentage of available AfriNIC address space announced: 12.5
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 1287 7916 240 CHINANET-BACKBONE 4755 962 255 65 Videsh Sanchar Nigam Ltd. Aut 9583 936 109 15 Sify Limited 9498 781 211 70 BHARTI BT INTERNET LTD. 4766 726 4435 306 Korea Telecom (KIX) 1221 648 1779 478 Telstra Pty Ltd 4538 604 2717 31 China Education and Research 7545 554 124 73 TPG Internet Pty Ltd 17488 522 32 18 Hathway IP Over Cable Interne 17676 491 7109 111 Softbank BB Corp. 9443 450 111 83 Primus Telecommunications 18101 436 85 22 Reliance Infocom Ltd Internet 4812 412 739 59 China Telecom (Shanghai) 17849 412 30 123 Telecommunications Technology 17974 382 129 12 PT TELEKOMUNIKASI INDONESIA 4802 379 82 167 Wantree Development 7474 358 211 230 SingTel Optus Pty Ltd 17557 358 29 169 Pakistan Telecom 2907 341 1749 314 SINET Japan 9929 313 198 38 China Netcom Corp.
RIPE Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 702 619 1947 441 UUNET - Commercial IP service 3215 401 1760 97 France Telecom Transpac 3301 315 1186 300 TeliaNet Sweden 3320 295 5013 239 Deutsche Telekom AG 8220 284 471 267 COLT Telecommunications 24863 248 42 10 LINKdotNET AS number 680 247 2041 244 DFN-IP service G-WiN 6746 242 91 220 Dynamic Network Technologies, 3246 233 462 223 Song Networks 5089 230 1657 45 NTL Group Limited 1257 224 742 168 SWIPnet Swedish IP Network 8708 215 278 203 Romania Data Systems S.A. 3269 202 2246 73 TELECOM ITALIA 8551 202 182 27 Bezeq International 30890 200 18 83 SC Kappa Invexim SRL 6830 195 879 43 UPC Distribution Services 8866 182 37 15 Bulgarian Telecommunication C 5416 181 12 7 BATELCO-BH 3300 172 171 96 AUCS Communications Services 786 170 1778 170 The JANET IP Service
ARIN Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 701 5015 6798 790 UUNET Technologies, Inc. 4323 3203 747 281 Time Warner Telecom 705 1501 559 658 UUNET Technologies, Inc. 7018 1488 6267 957 AT&T WorldNet Services 174 1127 5737 887 Cogent Communications 6197 1018 636 478 BellSouth Network Solutions, 721 997 21926 310 DLA Systems Automation Center 18566 953 272 8 Covad Communications 2386 941 559 711 AT&T Data Communications Serv 1239 847 2814 599 Sprint 7046 825 251 681 UUNET Technologies, Inc. 20115 729 651 379 Charter Communications 19262 726 2212 184 Verizon Global Networks 11492 723 90 16 Cable One 209 687 3661 541 Qwest 22773 682 1742 41 Cox Communications, Inc. 7011 676 221 431 Citizens Utilities 6461 606 228 84 AboveNet Communications, Inc. 852 596 1068 382 Telus Advanced Communications 6198 595 554 237 BellSouth Network Solutions,
Global Per AS Maximum Aggr summary ----------------------------------
ASN No of nets Net Savings Description 4323 3203 2922 Time Warner Telecom 4134 1287 1047 CHINANET-BACKBONE 18566 953 945 Covad Communications 9583 936 921 Sify Limited 4755 962 897 Videsh Sanchar Nigam Ltd. Aut 705 1501 843 UUNET Technologies, Inc. 9498 781 711 BHARTI BT INTERNET LTD. 11492 723 707 Cable One 721 997 687 DLA Systems Automation Center 22773 682 641 Cox Communications, Inc. 4538 604 573 China Education and Research 8151 779 553 UniNet S.A. de C.V. 19262 726 542 Verizon Global Networks 6197 1018 540 BellSouth Network Solutions, 7018 1488 531 AT&T WorldNet Services 5668 542 523 CenturyTel Internet Holdings, 6461 606 522 AboveNet Communications, Inc. 19916 563 509 OLM LLC 17488 522 504 Hathway IP Over Cable Interne 855 565 494 Canadian Research Network
List of Unregistered Origin ASNs (Global) -----------------------------------------
Bad AS Designation Network Transit AS Description 65333 PRIVATE 1.0.0.0/8 23342 UnitedLayer, Inc. 64666 PRIVATE 2.2.2.0/24 8001 Net Access Corporati 65000 PRIVATE 64.25.139.64/29 21947 Cutthroat Communicat 65473 PRIVATE 66.246.179.0/24 8001 Net Access Corporati 64500 RESERVED 81.17.39.128/27 24587 AS for Internet Onli 65515 PRIVATE 87.251.34.0/24 12859 Business Internet Tr 65515 PRIVATE 87.251.36.0/24 12859 Business Internet Tr 65350 PRIVATE 124.236.0.0/19 17672 asn for Hebei Provin 65350 PRIVATE 124.236.240.0/20 17672 asn for Hebei Provin 65014 PRIVATE 135.196.176.96/27 8190 VIATEL 65106 PRIVATE 195.219.161.0/27 6453 Teleglobe Inc. 65014 PRIVATE 203.117.240.0/21 4657 Starhub Internet, Si 24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com 65010 PRIVATE 212.2.12.160/28 8190 VIATEL 64565 PRIVATE 212.111.35.128/27 4513 PFM Communications, 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 64560 PRIVATE 213.219.53.192/26 4513 PFM Communications, 65000 PRIVATE 216.136.11.0/24 27182 Peregrine Capital Ma 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 65350 PRIVATE 219.148.0.0/22 17672 asn for Hebei Provin 65350 PRIVATE 219.148.4.0/23 17672 asn for Hebei Provin 65350 PRIVATE 219.148.8.0/21 17672 asn for Hebei Provin 65350 PRIVATE 219.148.24.0/21 17672 asn for Hebei Provin 65350 PRIVATE 219.148.32.0/19 17672 asn for Hebei Provin 65350 PRIVATE 222.222.0.0/21 17672 asn for Hebei Provin 65350 PRIVATE 222.222.8.0/21 17672 asn for Hebei Provin 65350 PRIVATE 222.222.16.0/20 17672 asn for Hebei Provin 65350 PRIVATE 222.222.32.0/20 17672 asn for Hebei Provin 65350 PRIVATE 222.222.48.0/20 17672 asn for Hebei Provin 65350 PRIVATE 222.222.208.0/21 17672 asn for Hebei Provin 65350 PRIVATE 222.222.216.0/21 17672 asn for Hebei Provin 65350 PRIVATE 222.223.187.0/24 17672 asn for Hebei Provin 65350 PRIVATE 222.223.188.0/22 17672 asn for Hebei Provin 65350 PRIVATE 222.223.192.0/22 17672 asn for Hebei Provin 65350 PRIVATE 222.223.196.0/23 17672 asn for Hebei Provin 65350 PRIVATE 222.223.200.0/22 17672 asn for Hebei Provin 65350 PRIVATE 222.223.206.0/23 17672 asn for Hebei Provin 65350 PRIVATE 222.223.224.0/19 17672 asn for Hebei Provin
Prefixes from private and non-routed address space (Global) -----------------------------------------------------------
Prefix Origin AS Description 0.0.0.0/8 3303 Swisscom Ltd 172.16.2.32/27 6325 Illinois Century Network 172.16.2.80/28 6325 Illinois Century Network 172.31.31.0/30 6325 Illinois Century Network 192.0.2.0/24 812 Rogers WAVE 192.168.83.0/24 292 Energy Sciences Network
Advertised Unallocated Addresses --------------------------------
Network Origin AS Description 1.0.0.0/8 65333 PRIVATE ASN 2.2.2.0/24 64666 PRIVATE ASN 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 192.44.0.0/24 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 192.172.0.0/19 721 DLA Systems Automation Center 192.249.0.0/20 3450 University of Tennessee, Knox
Number of prefixes announced per prefix length (Global) -------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:19 /9:9 /10:11 /11:28 /12:97 /13:213 /14:377 /15:738 /16:8983 /17:3481 /18:5691 /19:12312 /20:14016 /21:12443 /22:15924 /23:17288 /24:114757 /25:465 /26:377 /27:302 /28:226 /29:200 /30:540 /31:0 /32:111
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 701 3746 5015 UUNET Technologies, Inc. 4323 1901 3203 Time Warner Telecom 705 949 1501 UUNET Technologies, Inc. 18566 936 953 Covad Communications 6197 798 1018 BellSouth Network Solutions, 7018 781 1488 AT&T WorldNet Services 9583 769 936 Sify Limited 11492 711 723 Cable One 2386 660 941 AT&T Data Communications Serv 7046 583 825 UUNET Technologies, Inc. 7011 582 676 Citizens Utilities 19916 557 563 OLM LLC 4766 537 726 Korea Telecom (KIX) 6461 533 606 AboveNet Communications, Inc. 2686 515 560 IBM 9498 462 781 BHARTI BT INTERNET LTD. 855 442 565 Canadian Research Network 6198 441 595 BellSouth Network Solutions, 15270 424 455 PaeTec.net -a division of Pae 5668 423 542 CenturyTel Internet Holdings,
Number of /24s announced per /8 block (Global) ----------------------------------------------
2:1 4:9 8:50 12:1629 13:1 15:15 16:3 17:3 18:4 20:41 24:816 25:1 30:2 32:268 38:264 40:52 41:11 44:3 45:12 47:6 52:4 55:1 56:3 57:54 58:215 59:274 60:188 61:948 62:958 63:3392 64:3611 65:3671 66:3809 67:653 68:679 69:1588 70:391 71:88 72:875 74:72 75:5 80:774 81:727 82:710 83:406 84:410 85:594 86:397 87:465 88:156 89:393 91:1 121:13 122:3 123:1 124:344 125:591 128:163 129:188 130:122 131:318 132:35 133:9 134:164 135:48 136:178 137:86 138:214 139:136 140:486 141:136 142:395 143:187 144:239 145:40 146:317 147:145 148:352 149:190 150:114 151:96 152:74 153:117 154:6 155:214 156:180 157:171 158:167 159:173 160:94 161:86 162:217 163:164 164:282 165:227 166:182 167:242 168:601 169:125 170:352 171:14 190:124 192:5837 193:3424 194:2803 195:2181 196:892 198:4034 199:3367 200:4619 201:997 202:6943 203:7113 204:4086 205:2161 206:2817 207:3576 208:3019 209:3860 210:2263 211:887 212:1358 213:1526 214:368 215:41 216:4395 217:1371 218:347 219:280 220:754 221:371 222:242
End of report
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