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Routing Table Report 00:00 GMT Wed 02 Nov, 2011
NB: RouteViews data includes iBGP information from some ASNs. Treat the information provided below appropriately.
Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/rviews/
Analysis Summary ----------------
BGP routing table entries examined: 383162 Prefixes after maximum aggregation: 167425 Deaggregation factor: 2.29 Unique aggregates announced to Internet: 186763 Total ASes present in the Internet Routing Table: 39218 Prefixes per ASN: 9.77 Origin-only ASes present in the Internet Routing Table: 32355 Origin ASes announcing only one prefix: 15496 Transit ASes present in the Internet Routing Table: 5290 Transit-only ASes present in the Internet Routing Table: 142 Average AS path length visible in the Internet Routing Table: 4.2 Max AS path length visible: 28 Max AS path prepend of ASN (36992) 22 Prefixes from unregistered ASNs in the Routing Table: 5255 Unregistered ASNs in the Routing Table: 863 Number of 32-bit ASNs allocated by the RIRs: 1919 Number of 32-bit ASNs visible in the Routing Table: 1573 Prefixes from 32-bit ASNs in the Routing Table: 3642 Special use prefixes present in the Routing Table: 85 Prefixes being announced from unallocated address space: 86 Number of addresses announced to Internet: 2490011841 Equivalent to 148 /8s, 106 /16s and 144 /24s Percentage of available address space announced: 67.2 Percentage of allocated address space announced: 67.2 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 91.5 Total number of prefixes smaller than registry allocations: 160326
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 92541 Total APNIC prefixes after maximum aggregation: 29884 APNIC Deaggregation factor: 3.10 Prefixes being announced from the APNIC address blocks: 89073 Unique aggregates announced from the APNIC address blocks: 38146 APNIC Region origin ASes present in the Internet Routing Table: 4579 APNIC Prefixes per ASN: 19.45 APNIC Region origin ASes announcing only one prefix: 1274 APNIC Region transit ASes present in the Internet Routing Table: 717 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 21 Number of APNIC region 32-bit ASNs visible in the Routing Table: 99 Number of APNIC addresses announced to Internet: 629430784 Equivalent to 37 /8s, 132 /16s and 90 /24s Percentage of available APNIC address space announced: 79.8
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 131072-132095, 132096-133119 APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8, 106/8, 110/8, 111/8, 112/8, 113/8, 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, 133/8, 175/8, 180/8, 182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, 223/8,
ARIN Region Analysis Summary ----------------------------
Prefixes being announced by ARIN Region ASes: 148547 Total ARIN prefixes after maximum aggregation: 76490 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 120191 Unique aggregates announced from the ARIN address blocks: 48232 ARIN Region origin ASes present in the Internet Routing Table: 14737 ARIN Prefixes per ASN: 8.16 ARIN Region origin ASes announcing only one prefix: 5630 ARIN Region transit ASes present in the Internet Routing Table: 1554 Average ARIN Region AS path length visible: 3.8 Max ARIN Region AS path length visible: 22 Number of ARIN region 32-bit ASNs visible in the Routing Table: 12 Number of ARIN addresses announced to Internet: 804828440 Equivalent to 47 /8s, 248 /16s and 181 /24s Percentage of available ARIN address space announced: 64.0
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, 46080-47103 53248-55295, 393216-394239 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 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, 100/8, 104/8, 107/8, 108/8, 173/8, 174/8, 184/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8,
RIPE Region Analysis Summary ----------------------------
Prefixes being announced by RIPE Region ASes: 93248 Total RIPE prefixes after maximum aggregation: 50984 RIPE Deaggregation factor: 1.83 Prefixes being announced from the RIPE address blocks: 85035 Unique aggregates announced from the RIPE address blocks: 54335 RIPE Region origin ASes present in the Internet Routing Table: 16097 RIPE Prefixes per ASN: 5.28 RIPE Region origin ASes announcing only one prefix: 7978 RIPE Region transit ASes present in the Internet Routing Table: 2546 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 28 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1100 Number of RIPE addresses announced to Internet: 491516364 Equivalent to 29 /8s, 75 /16s and 241 /24s Percentage of available RIPE address space announced: 79.2
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, 47104-52223, 56320-58367 196608-198655 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 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, 109/8, 176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary ------------------------------
Prefixes being announced by LACNIC Region ASes: 36458 Total LACNIC prefixes after maximum aggregation: 7952 LACNIC Deaggregation factor: 4.58 Prefixes being announced from the LACNIC address blocks: 35778 Unique aggregates announced from the LACNIC address blocks: 18527 LACNIC Region origin ASes present in the Internet Routing Table: 1548 LACNIC Prefixes per ASN: 23.11 LACNIC Region origin ASes announcing only one prefix: 453 LACNIC Region transit ASes present in the Internet Routing Table: 285 Average LACNIC Region AS path length visible: 4.6 Max LACNIC Region AS path length visible: 25 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 358 Number of LACNIC addresses announced to Internet: 92762120 Equivalent to 5 /8s, 135 /16s and 112 /24s Percentage of available LACNIC address space announced: 61.4
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 262144-263167 plus ERX transfers LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8, 200/8, 201/8,
AfriNIC Region Analysis Summary -------------------------------
Prefixes being announced by AfriNIC Region ASes: 8548 Total AfriNIC prefixes after maximum aggregation: 2039 AfriNIC Deaggregation factor: 4.19 Prefixes being announced from the AfriNIC address blocks: 6669 Unique aggregates announced from the AfriNIC address blocks: 1988 AfriNIC Region origin ASes present in the Internet Routing Table: 498 AfriNIC Prefixes per ASN: 13.39 AfriNIC Region origin ASes announcing only one prefix: 161 AfriNIC Region transit ASes present in the Internet Routing Table: 113 Average AfriNIC Region AS path length visible: 4.3 Max AfriNIC Region AS path length visible: 24 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4 Number of AfriNIC addresses announced to Internet: 27919104 Equivalent to 1 /8s, 170 /16s and 3 /24s Percentage of available AfriNIC address space announced: 41.6
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary ----------------------------------------
ASN No of nets /20 equiv MaxAgg Description 4766 1947 11121 664 Korea Telecom (KIX) 17974 1628 511 36 PT TELEKOMUNIKASI INDONESIA 7545 1611 303 87 TPG Internet Pty Ltd 4755 1534 377 171 Videsh Sanchar Nigam Ltd. Aut 7552 1393 1064 8 Vietel Corporation 9829 1165 989 28 BSNL National Internet Backbo 4808 1102 2111 311 CNCGROUP IP network: China169 9583 1092 80 500 Sify Limited 24560 964 342 218 Bharti Airtel Ltd. 18101 953 135 149 Reliance Infocom Ltd Internet
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC
ARIN Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 6389 3544 3814 220 bellsouth.net, inc. 7029 2361 1041 207 Windstream Communications Inc 18566 2094 383 177 Covad Communications 1785 1843 680 123 AppliedTheory Corporation 4323 1622 1093 388 Time Warner Telecom 20115 1596 1547 621 Charter Communications 22773 1460 2907 100 Cox Communications, Inc. 19262 1395 4728 400 Verizon Global Networks 30036 1395 253 668 Mediacom Communications Corp 7018 1317 7047 865 AT&T WorldNet Services
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN
RIPE Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 8402 1533 416 14 Corbina telecom 286 1078 827 202 KPNQwest Backbone AS 6830 653 1927 414 UPC Distribution Services 34984 592 109 181 Tellcom Iletisim Hizmetleri 3292 579 2074 410 TDC Tele Danmark 9116 540 326 31 Goldenlines main autonomous s 20940 536 181 418 Akamai Technologies European 3320 507 8169 387 Deutsche Telekom AG 12479 479 596 9 Uni2 Autonomous System 8866 462 133 26 Bulgarian Telecommunication C
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE
LACNIC Region per AS prefix count summary -----------------------------------------
ASN No of nets /20 equiv MaxAgg Description 10620 1699 314 156 TVCABLE BOGOTA 8151 1470 2910 344 Uninet S.A. de C.V. 28573 1458 1044 73 Types of queries are: POCs, o 7303 1236 751 171 Telecom Argentina Stet-France 27947 603 72 85 Telconet S.A 22047 580 322 17 Types of queries are: POCs, o 6503 579 434 69 AVANTEL, S.A. 7738 552 1050 31 Telecomunicacoes da Bahia S.A 10481 548 430 20 Prima S.A. 3816 537 233 95 COLOMBIA TELECOMUNICACIONES S
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary ------------------------------------------
ASN No of nets /20 equiv MaxAgg Description 24863 799 146 36 LINKdotNET AS number 8452 652 446 12 TEDATA 15475 443 74 8 Nile Online 36992 297 415 21 Etisalat MISR 3741 281 939 230 The Internet Solution 6713 244 519 14 Itissalat Al-MAGHRIB 15706 240 32 6 Sudatel Internet Exchange Aut 33776 239 13 8 Starcomms Nigeria Limited 29571 219 18 14 Ci Telecom Autonomous system 12258 197 28 58 YEBO-AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC
Global Per AS prefix count summary ----------------------------------
ASN No of nets /20 equiv MaxAgg Description 6389 3544 3814 220 bellsouth.net, inc. 7029 2361 1041 207 Windstream Communications Inc 18566 2094 383 177 Covad Communications 4766 1947 11121 664 Korea Telecom (KIX) 1785 1843 680 123 AppliedTheory Corporation 10620 1699 314 156 TVCABLE BOGOTA 17974 1628 511 36 PT TELEKOMUNIKASI INDONESIA 4323 1622 1093 388 Time Warner Telecom 7545 1611 303 87 TPG Internet Pty Ltd 20115 1596 1547 621 Charter Communications
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary ----------------------------------
ASN No of nets Net Savings Description 7029 2361 2154 Windstream Communications Inc 18566 2094 1917 Covad Communications 1785 1843 1720 AppliedTheory Corporation 17974 1628 1592 PT TELEKOMUNIKASI INDONESIA 10620 1699 1543 TVCABLE BOGOTA 7545 1611 1524 TPG Internet Pty Ltd 8402 1533 1519 Corbina telecom 28573 1458 1385 Types of queries are: POCs, o 7552 1393 1385 Vietel Corporation 4755 1534 1363 Videsh Sanchar Nigam Ltd. Aut
Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global) -----------------------------------------
Bad AS Designation Network Transit AS Description 15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom 25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic 13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic 23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic 17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic 17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies, 16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic 32873 UNALLOCATED 12.46.100.0/23 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global) -----------------------------------------------------------
Prefix Origin AS Description 10.0.1.0/24 286 KPNQwest Backbone AS 10.29.244.56/29 286 KPNQwest Backbone AS 10.29.245.1/32 286 KPNQwest Backbone AS 10.29.245.2/32 286 KPNQwest Backbone AS 10.29.245.15/32 286 KPNQwest Backbone AS 10.29.245.19/32 286 KPNQwest Backbone AS 10.29.245.20/32 286 KPNQwest Backbone AS 10.29.245.21/32 286 KPNQwest Backbone AS 10.29.245.22/32 286 KPNQwest Backbone AS 10.29.245.25/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses --------------------------------
Network Origin AS Description 24.225.128.0/18 36377 Comcast Telecommunications, I 24.225.192.0/23 36377 Comcast Telecommunications, I 24.225.192.0/18 36377 Comcast Telecommunications, I 24.225.224.0/21 36377 Comcast Telecommunications, I 24.225.237.0/24 36377 Comcast Telecommunications, I 24.225.248.0/21 36377 Comcast Telecommunications, I 41.222.79.0/24 36938 >>UNKNOWN<< 41.223.92.0/22 36936 >>UNKNOWN<< 62.61.220.0/24 24974 Tachyon Europe BV - Wireless 62.61.221.0/24 24974 Tachyon Europe BV - Wireless
Complete listing at http://thyme.rand.apnic.net/rviews/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 /8:20 /9:12 /10:27 /11:81 /12:236 /13:465 /14:814 /15:1454 /16:12146 /17:6316 /18:10414 /19:20478 /20:28705 /21:27939 /22:37417 /23:35661 /24:199265 /25:68 /26:87 /27:117 /28:281 /29:110 /30:482 /31:52 /32:515
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 6389 2184 3544 bellsouth.net, inc. 18566 2043 2094 Covad Communications 7029 2014 2361 Windstream Communications Inc 10620 1594 1699 TVCABLE BOGOTA 8402 1509 1533 Corbina telecom 30036 1356 1395 Mediacom Communications Corp 11492 1117 1155 Cable One 1785 1056 1843 AppliedTheory Corporation 7011 1050 1168 Citizens Utilities 22773 948 1460 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global) ----------------------------------------------
1:417 2:489 4:19 5:1 6:3 8:361 10:1 12:1956 13:1 14:544 15:11 16:3 17:7 20:9 23:59 24:1684 27:970 31:662 32:146 33:2 34:2 36:4 38:758 39:1 40:110 41:2695 42:53 44:3 46:1023 47:3 49:299 50:444 52:13 55:7 56:2 57:56 58:896 59:491 60:362 61:1127 62:1099 63:1982 64:4074 65:2303 66:4297 67:2017 68:1330 69:3310 70:928 71:383 72:1834 73:1 74:2660 75:405 76:324 77:880 78:868 79:477 80:1141 81:832 82:534 83:532 84:628 85:1149 86:411 87:923 88:359 89:1616 90:237 91:4252 92:531 93:1545 94:1307 95:1120 96:430 97:286 98:936 99:37 101:222 103:417 106:70 107:79 108:76 109:1057 110:665 111:797 112:339 113:487 114:619 115:709 116:911 117:721 118:889 119:1264 120:340 121:714 122:1561 123:1012 124:1328 125:1352 128:245 129:192 130:163 131:629 132:148 133:21 134:221 135:54 136:213 137:140 138:286 139:136 140:488 141:316 142:389 143:414 144:494 145:64 146:467 147:229 148:696 149:267 150:164 151:194 152:447 153:178 154:7 155:382 156:208 157:361 158:154 159:485 160:333 161:214 162:371 163:173 164:511 165:386 166:539 167:439 168:744 169:146 170:880 171:86 172:4 173:1718 174:679 175:431 176:282 177:362 178:1081 180:1140 181:36 182:655 183:223 184:383 185:1 186:1324 187:773 188:958 189:1134 190:5161 192:5957 193:5062 194:3580 195:3135 196:1232 197:166 198:3637 199:4173 200:5530 201:1703 202:8570 203:8484 204:4308 205:2374 206:2698 207:2839 208:4037 209:3610 210:2744 211:1467 212:2123 213:1789 214:805 215:97 216:4940 217:1608 218:568 219:342 220:1263 221:516 222:324 223:264
End of report
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