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Routing Table Report 00:00 GMT Tue 27 Feb, 2007
Analysis Summary ----------------
BGP routing table entries examined: 224611 Prefixes after maximum aggregation: 116515 Deaggregation factor: 1.93 Unique aggregates announced to Internet: 103973 Total ASes present in the Internet Routing Table: 24555 Origin-only ASes present in the Internet Routing Table: 21291 Origin ASes announcing only one prefix: 10287 Transit ASes present in the Internet Routing Table: 3264 Transit-only ASes present in the Internet Routing Table: 78 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 32 Max AS path prepend of ASN (20858) 18 Prefixes from unregistered ASNs in the Routing Table: 62 Unregistered ASNs in the Routing Table: 24 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 12 Number of addresses announced to Internet: 1689062884 Equivalent to 100 /8s, 173 /16s and 13 /24s Percentage of available address space announced: 45.6 Percentage of allocated address space announced: 62.6 Percentage of available address space allocated: 72.8 Total number of prefixes smaller than registry allocations: 119287
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 49840 Total APNIC prefixes after maximum aggregation: 19760 APNIC Deaggregation factor: 2.52 Prefixes being announced from the APNIC address blocks: 46848 Unique aggregates announced from the APNIC address blocks: 20526 APNIC Region origin ASes present in the Internet Routing Table: 2908 APNIC Region origin ASes announcing only one prefix: 789 APNIC Region transit ASes present in the Internet Routing Table: 440 Average APNIC Region AS path length visible: 4.3 Max APNIC Region AS path length visible: 20 Number of APNIC addresses announced to Internet: 290187584 Equivalent to 17 /8s, 75 /16s and 233 /24s Percentage of available APNIC address space announced: 71.9
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, 116/6, 120/6, 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: 112766 Total ARIN prefixes after maximum aggregation: 62503 ARIN Deaggregation factor: 1.80 Prefixes being announced from the ARIN address blocks: 83828 Unique aggregates announced from the ARIN address blocks: 29560 ARIN Region origin ASes present in the Internet Routing Table: 11380 ARIN Region origin ASes announcing only one prefix: 4360 ARIN Region transit ASes present in the Internet Routing Table: 1086 Average ARIN Region AS path length visible: 4.1 Max ARIN Region AS path length visible: 18 Number of ARIN addresses announced to Internet: 321342944 Equivalent to 19 /8s, 39 /16s and 77 /24s Percentage of available ARIN address space announced: 70.9
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: 45237 Total RIPE prefixes after maximum aggregation: 29199 RIPE Deaggregation factor: 1.55 Prefixes being announced from the RIPE address blocks: 42165 Unique aggregates announced from the RIPE address blocks: 27178 RIPE Region origin ASes present in the Internet Routing Table: 9243 RIPE Region origin ASes announcing only one prefix: 4827 RIPE Region transit ASes present in the Internet Routing Table: 1522 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 32 Number of RIPE addresses announced to Internet: 292028544 Equivalent to 17 /8s, 104 /16s and 0 /24s Percentage of available RIPE address space announced: 79.1
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 40960-43007 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: 14045 Total LACNIC prefixes after maximum aggregation: 4058 LACNIC Deaggregation factor: 3.46 Prefixes being announced from the LACNIC address blocks: 12120 Unique aggregates announced from the LACNIC address blocks: 7000 LACNIC Region origin ASes present in the Internet Routing Table: 764 LACNIC Region origin ASes announcing only one prefix: 249 LACNIC Region transit ASes present in the Internet Routing Table: 136 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 27 Number of LACNIC addresses announced to Internet: 37759744 Equivalent to 2 /8s, 64 /16s and 43 /24s Percentage of available LACNIC address space announced: 56.3
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: 2663 Total AfriNIC prefixes after maximum aggregation: 993 AfriNIC Deaggregation factor: 2.68 Prefixes being announced from the AfriNIC address blocks: 1949 Unique aggregates announced from the AfriNIC address blocks: 1180 AfriNIC Region origin ASes present in the Internet Routing Table: 181 AfriNIC Region origin ASes announcing only one prefix: 61 AfriNIC Region transit ASes present in the Internet Routing Table: 35 Average AfriNIC Region AS path length visible: 4.5 Max AfriNIC Region AS path length visible: 24 Number of AfriNIC addresses announced to Internet: 5412352 Equivalent to 0 /8s, 82 /16s and 150 /24s Percentage of available AfriNIC address space announced: 16.1
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 1273 8702 277 CHINANET-BACKBONE 4755 1125 383 73 Videsh Sanchar Nigam Ltd. Aut 9498 1101 468 66 BHARTI BT INTERNET LTD. 9583 1077 77 368 Sify Limited 23577 781 35 709 Korea Telecom (ATM-MPLS) 4766 768 4942 309 Korea Telecom (KIX) 1221 622 1687 454 Telstra Pty Ltd 17488 602 40 25 Hathway IP Over Cable Interne 7545 589 142 76 TPG Internet Pty Ltd 18101 529 103 23 Reliance Infocom Ltd Internet 17676 503 10935 65 Softbank BB Corp. 4812 501 779 73 China Telecom (Shanghai) 7474 455 216 260 SingTel Optus Pty Ltd 4668 454 68 10 LG-EDS Systems Inc. 9443 443 111 74 Primus Telecommunications 9942 432 85 127 COMindico Australia 17849 370 35 94 Telecommunications Technology 4802 362 86 149 Wantree Development 17557 350 34 170 Pakistan Telecom 2907 339 1749 310 SINET Japan
RIPE Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 702 539 1879 417 UUNET - Commercial IP service 2119 444 833 374 Telenor Internet Access 24863 327 45 21 LINKdotNET AS number 3301 312 1199 291 TeliaNet Sweden 3320 298 4993 249 Deutsche Telekom AG 8220 273 465 263 COLT Telecommunications 6746 269 95 248 Dynamic Network Technologies, 1257 262 1116 173 SWIPnet Swedish IP Network 680 257 2044 251 DFN-IP service G-WiN 5416 253 16 12 BATELCO-BH 8708 242 284 228 Romania Data Systems S.A. 5089 240 1657 52 NTL Group Limited 3215 239 2224 92 France Telecom Transpac 3269 211 2422 71 TELECOM ITALIA 3246 208 355 197 Song Networks 30890 207 17 97 SC Kappa Invexim SRL 8551 206 197 25 Bezeq International 3352 201 1783 33 Ibernet, Internet Access Netw 20858 197 34 3 EgyNet 3300 188 171 91 AUCS Communications Services
ARIN Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 701 4795 6697 749 UUNET Technologies, Inc. 7018 1492 10196 972 AT&T WorldNet Services 4323 1449 1005 351 Time Warner Telecom 7015 1385 983 92 AT&T Broadband 705 1297 557 600 UUNET Technologies, Inc. 6478 1124 443 194 AT&T Worldnet Services 2386 1114 570 738 AT&T Data Communications Serv 6197 1024 667 499 BellSouth Network Solutions, 18566 992 288 9 Covad Communications 11492 982 101 17 Cable One 174 945 6792 868 Cogent Communications 1239 809 2697 568 Sprint 7011 801 229 476 Citizens Utilities 20115 801 706 427 Charter Communications 7046 797 267 657 UUNET Technologies, Inc. 19262 757 2591 178 Verizon Global Networks 22773 732 1872 41 Cox Communications, Inc. 209 718 3744 572 Qwest 721 632 21787 274 DLA Systems Automation Center 852 609 1088 381 Telus Advanced Communications
Global Per AS Maximum Aggr summary ----------------------------------
ASN No of nets Net Savings Description 7015 1385 1293 AT&T Broadband 4323 1449 1098 Time Warner Telecom 4755 1125 1052 Videsh Sanchar Nigam Ltd. Aut 9498 1101 1035 BHARTI BT INTERNET LTD. 4134 1273 996 CHINANET-BACKBONE 18566 992 983 Covad Communications 11492 982 965 Cable One 6478 1124 930 AT&T Worldnet Services 8151 1041 828 UniNet S.A. de C.V. 9583 1077 709 Sify Limited 705 1297 697 UUNET Technologies, Inc. 22773 732 691 Cox Communications, Inc. 19262 757 579 Verizon Global Networks 17488 602 577 Hathway IP Over Cable Interne 5668 572 556 CenturyTel Internet Holdings, 6197 1024 525 BellSouth Network Solutions, 7018 1492 520 AT&T WorldNet Services 19916 568 514 OLM LLC 7545 589 513 TPG Internet Pty Ltd 18101 529 506 Reliance Infocom Ltd Internet
List of Unregistered Origin ASNs (Global) -----------------------------------------
Bad AS Designation Network Transit AS Description 65533 PRIVATE 4.33.8.0/28 293 Energy Sciences Netw 65533 PRIVATE 4.33.8.16/28 293 Energy Sciences Netw 65533 PRIVATE 4.33.8.32/28 293 Energy Sciences Netw 65533 PRIVATE 4.33.8.48/28 293 Energy Sciences Netw 65533 PRIVATE 4.33.8.64/28 293 Energy Sciences Netw 65533 PRIVATE 4.33.8.80/28 293 Energy Sciences Netw 65533 PRIVATE 4.33.8.96/28 293 Energy Sciences Netw 65533 PRIVATE 4.33.8.112/28 293 Energy Sciences Netw 65533 PRIVATE 4.33.8.128/28 293 Energy Sciences Netw 65533 PRIVATE 4.33.8.144/28 293 Energy Sciences Netw 65533 PRIVATE 4.33.8.160/28 293 Energy Sciences Netw 65533 PRIVATE 4.33.8.176/28 293 Energy Sciences Netw 65533 PRIVATE 4.33.8.192/28 293 Energy Sciences Netw 65533 PRIVATE 4.33.8.208/28 293 Energy Sciences Netw 65533 PRIVATE 4.33.8.224/28 293 Energy Sciences Netw 65533 PRIVATE 4.33.8.240/28 293 Energy Sciences Netw 65533 PRIVATE 4.33.9.0/26 293 Energy Sciences Netw 65533 PRIVATE 4.33.9.128/27 293 Energy Sciences Netw 65533 PRIVATE 4.33.9.192/27 293 Energy Sciences Netw 65533 PRIVATE 4.33.9.224/27 293 Energy Sciences Netw 65533 PRIVATE 4.33.10.0/28 293 Energy Sciences Netw 65533 PRIVATE 4.33.10.16/28 293 Energy Sciences Netw 65533 PRIVATE 4.33.10.32/28 293 Energy Sciences Netw 65533 PRIVATE 4.33.10.48/28 293 Energy Sciences Netw 65533 PRIVATE 4.33.10.64/28 293 Energy Sciences Netw 65533 PRIVATE 4.33.10.80/28 293 Energy Sciences Netw 65332 PRIVATE 63.166.106.192/27 1803 SPRINT 64513 PRIVATE 194.149.101.192/28 6721 The Terminal Bar: In 64527 PRIVATE 194.149.115.64/28 6721 The Terminal Bar: In 64524 PRIVATE 194.149.116.64/28 6721 The Terminal Bar: In 64514 PRIVATE 194.149.116.176/28 6721 The Terminal Bar: In 64532 PRIVATE 195.22.48.64/27 6721 The Terminal Bar: In 64526 PRIVATE 195.47.13.96/28 6721 The Terminal Bar: In 64542 PRIVATE 195.47.24.112/28 6721 The Terminal Bar: In 64542 PRIVATE 195.47.24.128/27 6721 The Terminal Bar: In 64542 PRIVATE 195.47.25.192/27 6721 The Terminal Bar: In 64519 PRIVATE 195.47.33.160/27 6721 The Terminal Bar: In 64519 PRIVATE 195.47.33.192/28 6721 The Terminal Bar: In 64526 PRIVATE 195.47.39.128/26 6721 The Terminal Bar: In 64513 PRIVATE 195.47.40.128/26 6721 The Terminal Bar: In 64513 PRIVATE 195.47.40.128/25 6721 The Terminal Bar: In 64513 PRIVATE 195.47.40.192/26 6721 The Terminal Bar: In 64540 PRIVATE 195.47.75.48/28 6721 The Terminal Bar: In 64516 PRIVATE 195.47.88.128/25 6721 The Terminal Bar: In 64526 PRIVATE 195.47.100.0/25 6721 The Terminal Bar: In 65000 PRIVATE 195.47.102.0/25 6721 The Terminal Bar: In 64514 PRIVATE 195.144.99.0/26 6721 The Terminal Bar: In 64514 PRIVATE 195.144.99.64/27 6721 The Terminal Bar: In 64514 PRIVATE 195.144.99.96/28 6721 The Terminal Bar: In 64514 PRIVATE 195.144.99.112/28 6721 The Terminal Bar: In 64514 PRIVATE 195.144.99.128/25 6721 The Terminal Bar: In 65011 PRIVATE 203.116.243.0/24 4657 Starhub Internet, Si 24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE 24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com 65517 PRIVATE 213.154.248.0/29 12859 Business Internet Tr 65517 PRIVATE 213.154.248.8/29 12859 Business Internet Tr 22895 UNALLOCATED 216.174.38.0/24 19094 Adelphia Business So 65019 PRIVATE 216.195.13.0/24 19034 Norcom Networks Corp 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 2854 RoSprint AS (Global One Russi
Advertised Unallocated Addresses --------------------------------
Network Origin AS Description 7.1.1.0/24 1239 Sprint 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 180.190.0.0/16 24003 JUBILANT ORGANOSYS LTD., INDI 192.0.10.0/24 9498 BHARTI BT INTERNET LTD. 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 /9:9 /10:12 /11:34 /12:119 /13:238 /14:429 /15:831 /16:9280 /17:3811 /18:6296 /19:13401 /20:15218 /21:13998 /22:18151 /23:19663 /24:120019 /25:898 /26:706 /27:527 /28:219 /29:176 /30:474 /31:0 /32:82
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 701 3553 4795 UUNET Technologies, Inc. 7015 1240 1385 AT&T Broadband 6478 1076 1124 AT&T Worldnet Services 18566 974 992 Covad Communications 11492 968 982 Cable One 9583 913 1077 Sify Limited 2386 840 1114 AT&T Data Communications Serv 705 807 1297 UUNET Technologies, Inc. 7018 806 1492 AT&T WorldNet Services 6197 796 1024 BellSouth Network Solutions, 23577 767 781 Korea Telecom (ATM-MPLS) 9498 748 1101 BHARTI BT INTERNET LTD. 7011 700 801 Citizens Utilities 4323 634 1449 Time Warner Telecom 4766 577 768 Korea Telecom (KIX) 19916 563 568 OLM LLC 7046 547 797 UUNET Technologies, Inc. 4755 531 1125 Videsh Sanchar Nigam Ltd. Aut 15270 475 507 PaeTec.net -a division of Pae 855 465 566 Canadian Research Network
Number of /24s announced per /8 block (Global) ----------------------------------------------
4:9 7:1 8:63 9:1 12:1818 13:1 15:16 16:3 17:3 18:5 20:38 24:920 25:1 32:173 38:282 40:57 41:93 44:2 47:7 52:4 55:1 56:3 57:52 58:326 59:391 60:214 61:957 62:1089 63:3336 64:3313 65:3675 66:3257 67:749 68:661 69:1743 70:457 71:98 72:1220 73:7 74:381 75:82 76:47 77:67 80:845 81:790 82:704 83:378 84:510 85:771 86:443 87:494 88:245 89:809 90:3 91:209 97:1 121:143 122:493 123:50 124:618 125:961 128:307 129:219 130:125 131:349 132:50 133:10 134:188 135:39 136:181 137:97 138:194 139:104 140:499 141:142 142:394 143:211 144:271 145:43 146:317 147:150 148:374 149:187 150:114 151:116 152:97 153:118 154:6 155:251 156:153 157:174 158:169 159:151 160:99 161:90 162:231 163:162 164:460 165:383 166:245 167:280 168:516 169:119 170:380 171:15 172:1 189:196 190:421 192:5789 193:3750 194:3044 195:2303 196:1000 198:3887 199:3347 200:4602 201:985 202:7268 203:7431 204:4106 205:2177 206:2634 207:3108 208:3177 209:3717 210:2398 211:974 212:1328 213:1456 214:415 215:39 216:4260 217:1185 218:369 219:270 220:875 221:374 222:263
End of report
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