Routing Table Report 08:00 +10GMT Tue 13 Dec, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 378904
Prefixes after maximum aggregation: 165772
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 188727
Total ASes present in the Internet Routing Table: 37674
Prefixes per ASN: 10.06
Origin-only ASes present in the Internet Routing Table: 32439
Origin ASes announcing only one prefix: 15531
Transit ASes present in the Internet Routing Table: 5235
Transit-only ASes present in the Internet Routing Table: 132
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 2617
Unregistered ASNs in the Routing Table: 1046
Number of 32-bit ASNs allocated by the RIRs: 2076
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4094
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 78
Number of addresses announced to Internet: 2517797376
Equivalent to 150 /8s, 18 /16s and 138 /24s
Percentage of available address space announced: 67.9
Percentage of allocated address space announced: 67.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.7
Total number of prefixes smaller than registry allocations: 158352
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90474
Total APNIC prefixes after maximum aggregation: 29971
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 87889
Unique aggregates announced from the APNIC address blocks: 38519
APNIC Region origin ASes present in the Internet Routing Table: 4551
APNIC Prefixes per ASN: 19.31
APNIC Region origin ASes announcing only one prefix: 1265
APNIC Region transit ASes present in the Internet Routing Table: 705
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 630933504
Equivalent to 37 /8s, 155 /16s and 72 /24s
Percentage of available APNIC address space announced: 80.0
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: 145133
Total ARIN prefixes after maximum aggregation: 74295
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 117521
Unique aggregates announced from the ARIN address blocks: 48633
ARIN Region origin ASes present in the Internet Routing Table: 14727
ARIN Prefixes per ASN: 7.98
ARIN Region origin ASes announcing only one prefix: 5651
ARIN Region transit ASes present in the Internet Routing Table: 1508
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 803436032
Equivalent to 47 /8s, 227 /16s and 118 /24s
Percentage of available ARIN address space announced: 63.9
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, 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: 93833
Total RIPE prefixes after maximum aggregation: 51488
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 86144
Unique aggregates announced from the RIPE address blocks: 54925
RIPE Region origin ASes present in the Internet Routing Table: 16181
RIPE Prefixes per ASN: 5.32
RIPE Region origin ASes announcing only one prefix: 8011
RIPE Region transit ASes present in the Internet Routing Table: 2559
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 24
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 494080256
Equivalent to 29 /8s, 115 /16s and 17 /24s
Percentage of available RIPE address space announced: 79.6
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: 36220
Total LACNIC prefixes after maximum aggregation: 7881
LACNIC Deaggregation factor: 4.60
Prefixes being announced from the LACNIC address blocks: 35855
Unique aggregates announced from the LACNIC address blocks: 18902
LACNIC Region origin ASes present in the Internet Routing Table: 1539
LACNIC Prefixes per ASN: 23.30
LACNIC Region origin ASes announcing only one prefix: 445
LACNIC Region transit ASes present in the Internet Routing Table: 271
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 94649856
Equivalent to 5 /8s, 164 /16s and 62 /24s
Percentage of available LACNIC address space announced: 62.7
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: 8446
Total AfriNIC prefixes after maximum aggregation: 2065
AfriNIC Deaggregation factor: 4.09
Prefixes being announced from the AfriNIC address blocks: 6513
Unique aggregates announced from the AfriNIC address blocks: 2065
AfriNIC Region origin ASes present in the Internet Routing Table: 502
AfriNIC Prefixes per ASN: 12.97
AfriNIC Region origin ASes announcing only one prefix: 159
AfriNIC Region transit ASes present in the Internet Routing Table: 114
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 30891264
Equivalent to 1 /8s, 215 /16s and 93 /24s
Percentage of available AfriNIC address space announced: 46.0
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 1948 11101 663 Korea Telecom (KIX)
17974 1633 503 38 PT Telekomunikasi Indonesia
7545 1628 303 86 TPG Internet Pty Ltd
4755 1501 385 158 TATA Communications formerly
9829 1167 989 28 National Internet Backbone
9583 1099 81 496 Sify Limited
24560 978 381 164 Bharti Airtel Ltd., Telemedia
18101 964 122 157 Reliance Infocom Ltd Internet
4808 937 1949 270 CNCGROUP IP network China169
17488 933 166 226 Hathway IP Over Cable Interne
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3481 3814 219 BellSouth.net Inc.
7029 2950 1042 213 Windstream Communications Inc
18566 2094 383 177 Covad Communications Co.
1785 1858 680 121 PaeTec Communications, Inc.
4323 1617 1089 386 tw telecom holdings, inc.
20115 1601 1548 628 Charter Communications
22773 1504 2909 104 Cox Communications Inc.
30036 1446 258 674 Mediacom Communications Corp
19262 1387 4683 401 Verizon Online LLC
7018 1319 7063 867 AT&T Services, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1477 480 15 Corbina telecom
6830 644 1927 412 UPC Broadband
34984 624 132 194 BILISIM TELEKOM
2118 549 99 14 EUnet/RELCOM Autonomous Syste
20940 544 174 437 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
3320 528 8161 394 Deutsche Telekom AG
12479 525 619 37 France Telecom Espana SA
3292 481 2106 408 TDC Data Networks
8866 461 134 27 Bulgarian Telecommunication C
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1721 318 155 Types of queries are: POCs, o
28573 1528 1059 72 Types of queries are: POCs, o
8151 1314 2966 340 Uninet S.A. de C.V.
7303 1239 751 174 Telecom Argentina S.A.
27947 605 73 92 Telconet S.A
22047 582 322 17 Types of queries are: POCs, o
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 550 237 89 Types of queries are: POCs, o
6503 541 434 69 Axtel, S.A.B. de C.V.
11172 529 102 96 Alestra, S. de R.L. de C.V.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 964 958 13 TEDATA
24863 784 146 33 LINKdotNET AS number
3741 281 939 230 The Internet Solution
6713 243 647 17 Itissalat Al-MAGHRIB
15706 242 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
29571 217 17 13 Ci Telecom Autonomous system
12258 196 28 61 Vodacom Internet Company
24835 193 80 8 RAYA Telecom - Egypt
16637 161 664 86 MTN Network Solutions
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3481 3814 219 BellSouth.net Inc.
7029 2950 1042 213 Windstream Communications Inc
18566 2094 383 177 Covad Communications Co.
4766 1948 11101 663 Korea Telecom (KIX)
1785 1858 680 121 PaeTec Communications, Inc.
10620 1721 318 155 Types of queries are: POCs, o
17974 1633 503 38 PT Telekomunikasi Indonesia
7545 1628 303 86 TPG Internet Pty Ltd
4323 1617 1089 386 tw telecom holdings, inc.
20115 1601 1548 628 Charter Communications
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 2950 2737 Windstream Communications Inc
18566 2094 1917 Covad Communications Co.
1785 1858 1737 PaeTec Communications, Inc.
17974 1633 1595 PT Telekomunikasi Indonesia
10620 1721 1566 Types of queries are: POCs, o
7545 1628 1542 TPG Internet Pty Ltd
8402 1477 1462 Corbina telecom
28573 1528 1456 Types of queries are: POCs, o
22773 1504 1400 Cox Communications Inc.
4755 1501 1343 TATA Communications formerly
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65333 PRIVATE 10.0.0.0/8 0 *
32805 UNALLOCATED 12.1.225.0/24 7018 AT&T Services, Inc.
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
32567 UNALLOCATED 12.25.107.0/24 4323 tw telecom holdings,
30031 UNALLOCATED 12.27.122.0/24 7018 AT&T Services, Inc.
26095 UNALLOCATED 12.34.8.0/24 7018 AT&T Services, Inc.
21861 UNALLOCATED 12.37.59.0/24 7018 AT&T Services, Inc.
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T Services, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 0 *
198.18.0.0/15 65333 Internet Assigned Numbers Aut
Complete listing at http://thyme.rand.apnic.net/london/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV
62.61.221.0/24 24974 Tachyon Europe BV
64.21.192.0/20 11610 Internet Nebraska Corporation
64.21.212.0/22 11610 Internet Nebraska Corporation
64.21.216.0/21 11610 Internet Nebraska Corporation
66.175.222.0/23 30058 FDC Servers.net, LLC
66.180.239.0/24 35888 VIGNETTE CORPORATION
66.207.32.0/20 23011 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/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 /12:237
/13:465 /14:809 /15:1440 /16:12011 /17:6089 /18:10106
/19:20194 /20:27684 /21:28035 /22:37909 /23:35469 /24:197772
/25:11 /26:21 /27:20 /28:154 /29:136 /30:66
/31:0 /32:136
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2562 2950 Windstream Communications Inc
6389 2123 3481 BellSouth.net Inc.
18566 2043 2094 Covad Communications Co.
10620 1616 1721 Types of queries are: POCs, o
8402 1452 1477 Corbina telecom
30036 1406 1446 Mediacom Communications Corp
11492 1116 1153 CABLE ONE, INC.
1785 1060 1858 PaeTec Communications, Inc.
7011 1051 1168 Frontier Communications of Am
22773 965 1504 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:446 2:438 4:15 5:1 6:3 8:360
12:1945 13:1 14:554 15:11 16:3 17:7
20:8 23:72 24:1697 27:1099 31:726 32:62
33:2 34:2 36:4 38:767 40:114 41:2939
42:73 44:3 46:1131 47:3 49:275 50:458
52:13 55:5 56:2 57:42 58:871 59:481
60:339 61:1067 62:920 63:1964 64:4036 65:2304
66:4354 67:2007 68:1178 69:3118 70:914 71:362
72:1776 74:2636 75:430 76:319 77:934 78:869
79:437 80:1151 81:848 82:536 83:528 84:473
85:1170 86:414 87:907 88:341 89:1583 90:248
91:4348 92:542 93:1394 94:1331 95:1085 96:391
97:286 98:777 99:38 101:124 103:532 106:8
107:107 108:96 109:1092 110:672 111:815 112:363
113:487 114:605 115:686 116:860 117:694 118:875
119:1226 120:341 121:655 122:1555 123:1015 124:1295
125:1291 128:292 129:181 130:177 131:569 132:153
133:21 134:215 135:54 136:211 137:147 138:286
139:121 140:455 141:254 142:364 143:391 144:501
145:66 146:470 147:223 148:616 149:271 150:159
151:192 152:443 153:171 154:6 155:397 156:206
157:327 158:155 159:431 160:340 161:204 162:360
163:172 164:518 165:389 166:542 167:458 168:812
169:145 170:824 171:93 172:4 173:1789 174:601
175:405 176:337 177:426 178:1135 180:1198 181:38
182:656 183:255 184:400 185:1 186:1473 187:782
188:943 189:1173 190:5279 192:5932 193:5119 194:3795
195:3368 196:1261 197:173 198:3565 199:4173 200:5441
201:1706 202:8260 203:8435 204:4246 205:2384 206:2585
207:2770 208:4001 209:3539 210:2671 211:1442 212:1984
213:1797 214:818 215:95 216:4906 217:1494 218:558
219:331 220:1215 221:507 222:297 223:245
End of report
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