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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 26 Feb, 2008
Report Website: http://thyme.apnic.net Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary ----------------
BGP routing table entries examined: 247227 Prefixes after maximum aggregation: 125182 Deaggregation factor: 1.97 Unique aggregates announced to Internet: 119593 Total ASes present in the Internet Routing Table: 27439 Prefixes per ASN: 9.01 Origin-only ASes present in the Internet Routing Table: 23926 Origin ASes announcing only one prefix: 11611 Transit ASes present in the Internet Routing Table: 3513 Transit-only ASes present in the Internet Routing Table: 73 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 19 Max AS path prepend of ASN (29642) 15 Prefixes from unregistered ASNs in the Routing Table: 44 Unregistered ASNs in the Routing Table: 12 Number of 32-bit ASNs allocated by the RIRs: 46 Prefixes from 32-bit ASNs in the Routing Table: 9 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 878 Number of addresses announced to Internet: 1835725568 Equivalent to 109 /8s, 106 /16s and 243 /24s Percentage of available address space announced: 49.5 Percentage of allocated address space announced: 60.8 Percentage of available address space allocated: 81.4 Percentage of address space in use by end-sites: 70.4 Total number of prefixes smaller than registry allocations: 117066
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 56551 Total APNIC prefixes after maximum aggregation: 20816 APNIC Deaggregation factor: 2.72 Prefixes being announced from the APNIC address blocks: 54041 Unique aggregates announced from the APNIC address blocks: 22874 APNIC Region origin ASes present in the Internet Routing Table: 3133 APNIC Prefixes per ASN: 17.25 APNIC Region origin ASes announcing only one prefix: 826 APNIC Region transit ASes present in the Internet Routing Table: 482 Average APNIC Region AS path length visible: 3.6 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 330839744 Equivalent to 19 /8s, 184 /16s and 54 /24s Percentage of available APNIC address space announced: 75.8
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079 APNIC Address Blocks 58/8, 59/8, 60/8, 61/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8,
ARIN Region Analysis Summary ----------------------------
Prefixes being announced by ARIN Region ASes: 115919 Total ARIN prefixes after maximum aggregation: 65598 ARIN Deaggregation factor: 1.77 Prefixes being announced from the ARIN address blocks: 84610 Unique aggregates announced from the ARIN address blocks: 33362 ARIN Region origin ASes present in the Internet Routing Table: 12157 ARIN Prefixes per ASN: 6.96 ARIN Region origin ASes announcing only one prefix: 4692 ARIN Region transit ASes present in the Internet Routing Table: 1148 Average ARIN Region AS path length visible: 3.4 Max ARIN Region AS path length visible: 15 Number of ARIN addresses announced to Internet: 356407168 Equivalent to 21 /8s, 62 /16s and 87 /24s Percentage of available ARIN address space announced: 73.3
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, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 173/8, 174/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 216/8,
RIPE Region Analysis Summary ----------------------------
Prefixes being announced by RIPE Region ASes: 52493 Total RIPE prefixes after maximum aggregation: 32900 RIPE Deaggregation factor: 1.60 Prefixes being announced from the RIPE address blocks: 47615 Unique aggregates announced from the RIPE address blocks: 31994 RIPE Region origin ASes present in the Internet Routing Table: 10941 RIPE Prefixes per ASN: 4.35 RIPE Region origin ASes announcing only one prefix: 5721 RIPE Region transit ASes present in the Internet Routing Table: 1660 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 18 Number of RIPE addresses announced to Internet: 346488064 Equivalent to 20 /8s, 166 /16s and 253 /24s Percentage of available RIPE address space announced: 79.4
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 40960-45055 RIPE Address Blocks 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary ------------------------------
Prefixes being announced by LACNIC Region ASes: 18708 Total LACNIC prefixes after maximum aggregation: 4731 LACNIC Deaggregation factor: 3.95 Prefixes being announced from the LACNIC address blocks: 17091 Unique aggregates announced from the LACNIC address blocks: 9355 LACNIC Region origin ASes present in the Internet Routing Table: 907 LACNIC Prefixes per ASN: 18.84 LACNIC Region origin ASes announcing only one prefix: 300 LACNIC Region transit ASes present in the Internet Routing Table: 150 Average LACNIC Region AS path length visible: 3.9 Max LACNIC Region AS path length visible: 19 Number of LACNIC addresses announced to Internet: 48441344 Equivalent to 2 /8s, 227 /16s and 40 /24s Percentage of available LACNIC address space announced: 48.1
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers LACNIC Address Blocks 186/8, 187/8, 189/8, 190/8, 200/8, 201/8,
AfriNIC Region Analysis Summary -------------------------------
Prefixes being announced by AfriNIC Region ASes: 3511 Total AfriNIC prefixes after maximum aggregation: 1119 AfriNIC Deaggregation factor: 3.14 Prefixes being announced from the AfriNIC address blocks: 3947 Unique aggregates announced from the AfriNIC address blocks: 1798 AfriNIC Region origin ASes present in the Internet Routing Table: 227 AfriNIC Prefixes per ASN: 17.39 AfriNIC Region origin ASes announcing only one prefix: 72 AfriNIC Region transit ASes present in the Internet Routing Table: 44 Average AfriNIC Region AS path length visible: 3.8 Max AfriNIC Region AS path length visible: 14 Number of AfriNIC addresses announced to Internet: 9978880 Equivalent to 0 /8s, 152 /16s and 68 /24s Percentage of available AfriNIC address space announced: 29.7
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 4755 1582 386 81 Videsh Sanchar Nigam Ltd. Aut 9583 1150 109 22 Sify Limited 9498 1133 550 64 BHARTI BT INTERNET LTD. 17488 992 64 89 Hathway IP Over Cable Interne 4766 854 5495 345 Korea Telecom (KIX) 4134 852 12089 313 CHINANET-BACKBONE 23577 813 34 697 Korea Telecom (ATM-MPLS) 18101 708 127 62 Reliance Infocom Ltd Internet 9829 596 449 11 BSNL National Internet Backbo 4812 556 941 88 China Telecom (Shanghai)
Complete listing at http://thyme.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 7018 1424 5988 990 AT&T WorldNet Services 4323 1372 1011 361 Time Warner Telecom 2386 1360 634 837 AT&T Data Communications Serv 11492 1209 138 32 Cable One 7011 1061 308 614 Citizens Utilities 18566 1042 296 10 Covad Communications 6197 1037 762 511 BellSouth Network Solutions, 174 984 6835 815 Cogent Communications 6478 927 237 112 AT&T Worldnet Services 20115 887 808 484 Charter Communications
Complete listing at http://thyme.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 3292 397 1778 362 TDC Tele Danmark 8452 389 188 7 TEDATA 3301 335 1443 305 TeliaNet Sweden 3320 325 7045 269 Deutsche Telekom AG 8866 289 78 24 Bulgarian Telecommunication C 8551 279 267 42 Bezeq International 680 275 2046 256 DFN-IP service G-WiN 8708 275 421 245 Romania Data Systems S.A. 3215 272 2607 94 France Telecom Transpac 6746 269 128 247 Dynamic Network Technologies,
Complete listing at http://thyme.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary -----------------------------------------
ASN No of nets /20 equiv MaxAgg Description 8151 1169 2437 218 UniNet S.A. de C.V. 11830 555 299 9 Instituto Costarricense de El 7303 445 216 56 Telecom Argentina Stet-France 16814 426 27 10 NSS, S.A. 11172 398 115 65 Servicios Alestra S.A de C.V 6471 395 85 40 ENTEL CHILE S.A. 10620 366 96 49 TVCABLE BOGOTA 14117 352 25 15 Telefonica del Sur S.A. 22047 323 270 14 VTR PUNTO NET S.A. 10481 301 120 10 Prima S.A.
Complete listing at http://thyme.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary ------------------------------------------
ASN No of nets /20 equiv MaxAgg Description 24863 414 60 30 LINKdotNET AS number 3741 281 869 223 The Internet Solution 2018 245 276 111 Tertiary Education Network 20858 211 34 4 EgyNet 6713 143 135 11 Itissalat Al-MAGHRIB 33783 130 9 16 EEPAD TISP TELECOM & INTERNET 5536 121 8 16 Internet Egypt Network 33776 99 6 7 Starcomms Nigeria Limited 24835 90 48 7 RAYA Telecom - Egypt 29571 80 13 7 Ci Telecom Autonomous system
Complete listing at http://thyme.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary ----------------------------------
ASN No of nets /20 equiv MaxAgg Description 4755 1582 386 81 Videsh Sanchar Nigam Ltd. Aut 7018 1424 5988 990 AT&T WorldNet Services 4323 1372 1011 361 Time Warner Telecom 2386 1360 634 837 AT&T Data Communications Serv 11492 1209 138 32 Cable One 8151 1169 2437 218 UniNet S.A. de C.V. 9583 1150 109 22 Sify Limited 9498 1133 550 64 BHARTI BT INTERNET LTD. 7011 1061 308 614 Citizens Utilities 18566 1042 296 10 Covad Communications
Complete listing at http://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary ----------------------------------
ASN No of nets Net Savings Description 11492 1209 1177 Cable One 9583 1150 1128 Sify Limited 9498 1133 1069 BHARTI BT INTERNET LTD. 18566 1042 1032 Covad Communications 4323 1372 1011 Time Warner Telecom 8151 1169 951 UniNet S.A. de C.V. 17488 992 903 Hathway IP Over Cable Interne 6478 927 815 AT&T Worldnet Services 22773 873 808 Cox Communications, Inc. 19262 884 733 Verizon Global Networks
Complete listing at http://thyme.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global) -----------------------------------------
Bad AS Designation Network Transit AS Description 15190 UNALLOCATED 63.98.176.0/24 701 UUNET Technologies, 18506 UNALLOCATED 63.107.123.0/24 33286 Turlock Irrigation D 16886 UNALLOCATED 63.109.3.0/24 1239 Sprint 16886 UNALLOCATED 63.167.139.0/24 1239 Sprint 33526 UNALLOCATED 64.128.26.0/24 4323 Time Warner Telecom 21624 UNALLOCATED 65.163.176.0/24 701 UUNET Technologies, 65000 PRIVATE 92.62.240.0/20 24750 Cable Internet Syste 64601 PRIVATE 118.232.77.0/24 9924 Taiwan Fixed Network 64601 PRIVATE 118.232.78.0/24 9924 Taiwan Fixed Network 64601 PRIVATE 118.232.224.0/21 9924 Taiwan Fixed Network
Complete listing at http://thyme.apnic.net/current/data-badAS
Advertised Unallocated Addresses --------------------------------
Network Origin AS Description 24.48.10.0/23 19548 Adelphia Business Solutions 24.48.12.0/22 19548 Adelphia Business Solutions 24.48.80.0/21 19548 Adelphia Business Solutions 24.54.224.0/19 20001 HoldCo LLC - Road Runner 24.142.40.0/21 7018 AT&T WorldNet Services 24.142.160.0/19 7018 AT&T WorldNet Services 24.246.0.0/17 7018 AT&T WorldNet Services 24.246.128.0/18 7018 AT&T WorldNet Services 62.61.220.0/24 24974 Tachyon Europe BV - Wireless 63.140.213.0/24 22555 Universal Talkware Corporatio
Complete listing at http://thyme.apnic.net/current/data-add-IANA
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 /10:16 /11:39 /12:134 /13:276 /14:494 /15:986 /16:9768 /17:4252 /18:7121 /19:15173 /20:17345 /21:16478 /22:20839 /23:21941 /24:129657 /25:881 /26:1110 /27:565 /28:106 /29:9 /30:1 /31:0 /32:8
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 11492 1197 1209 Cable One 2386 1066 1360 AT&T Data Communications Serv 18566 1023 1042 Covad Communications 9583 986 1150 Sify Limited 7011 944 1061 Citizens Utilities 4755 934 1582 Videsh Sanchar Nigam Ltd. Aut 6478 926 927 AT&T Worldnet Services 17488 807 992 Hathway IP Over Cable Interne 23577 804 813 Korea Telecom (ATM-MPLS) 9498 803 1133 BHARTI BT INTERNET LTD.
Complete listing at http://thyme.apnic.net/current/data/sXXas-nos
Number of /24s announced per /8 block (Global) ----------------------------------------------
4:9 8:101 12:1981 13:2 15:21 16:3 17:6 18:13 20:35 24:1027 25:1 32:61 33:4 38:390 40:65 41:600 44:2 47:8 52:3 55:3 56:3 57:22 58:521 59:424 60:407 61:988 62:1081 63:1952 64:3358 65:2372 66:3639 67:1136 68:629 69:2101 70:485 71:123 72:1455 73:6 74:846 75:237 76:259 77:561 78:498 79:81 80:874 81:823 82:589 83:355 84:521 85:1007 86:395 87:647 88:295 89:1172 90:11 91:1046 92:137 93:79 95:2 96:13 97:10 98:75 99:3 114:1 115:1 116:533 117:257 118:79 119:154 121:439 122:708 123:290 124:805 125:1097 128:310 129:198 130:132 131:400 132:69 133:9 134:187 135:37 136:220 137:117 138:153 139:63 140:488 141:108 142:377 143:271 144:340 145:53 146:335 147:131 148:485 149:178 150:124 151:149 152:93 153:131 154:11 155:291 156:202 157:250 158:164 159:217 160:245 161:102 162:203 163:194 164:567 165:424 166:292 167:307 168:583 169:133 170:433 171:28 172:3 189:154 190:1395 192:5760 193:4105 194:3253 195:2340 196:1071 198:3777 199:3197 200:5453 201:1279 202:7599 203:7779 204:3971 205:2072 206:2415 207:2727 208:3154 209:3556 210:2531 211:1034 212:1307 213:1588 214:453 215:47 216:4156 217:1198 218:337 219:399 220:1096 221:402 222:308
End of report
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