Routing Table Report 08:00 +10GMT Wed 07 Dec, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 378103
Prefixes after maximum aggregation: 165634
Deaggregation factor: 2.28
Unique aggregates announced to Internet: 188487
Total ASes present in the Internet Routing Table: 37650
Prefixes per ASN: 10.04
Origin-only ASes present in the Internet Routing Table: 32424
Origin ASes announcing only one prefix: 15505
Transit ASes present in the Internet Routing Table: 5226
Transit-only ASes present in the Internet Routing Table: 140
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: 2600
Unregistered ASNs in the Routing Table: 1026
Number of 32-bit ASNs allocated by the RIRs: 2045
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4031
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 89
Number of addresses announced to Internet: 2515843072
Equivalent to 149 /8s, 244 /16s and 184 /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: 158170
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90442
Total APNIC prefixes after maximum aggregation: 29921
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 87893
Unique aggregates announced from the APNIC address blocks: 38521
APNIC Region origin ASes present in the Internet Routing Table: 4552
APNIC Prefixes per ASN: 19.31
APNIC Region origin ASes announcing only one prefix: 1268
APNIC Region transit ASes present in the Internet Routing Table: 708
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 630832640
Equivalent to 37 /8s, 153 /16s and 190 /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: 145040
Total ARIN prefixes after maximum aggregation: 74308
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 117437
Unique aggregates announced from the ARIN address blocks: 48638
ARIN Region origin ASes present in the Internet Routing Table: 14708
ARIN Prefixes per ASN: 7.98
ARIN Region origin ASes announcing only one prefix: 5631
ARIN Region transit ASes present in the Internet Routing Table: 1510
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: 803400448
Equivalent to 47 /8s, 226 /16s and 235 /24s
Percentage of available ARIN address space announced: 63.8
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: 93298
Total RIPE prefixes after maximum aggregation: 51390
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 85539
Unique aggregates announced from the RIPE address blocks: 54753
RIPE Region origin ASes present in the Internet Routing Table: 16170
RIPE Prefixes per ASN: 5.29
RIPE Region origin ASes announcing only one prefix: 8010
RIPE Region transit ASes present in the Internet Routing Table: 2547
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 22
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 492789504
Equivalent to 29 /8s, 95 /16s and 95 /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, 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: 36221
Total LACNIC prefixes after maximum aggregation: 7909
LACNIC Deaggregation factor: 4.58
Prefixes being announced from the LACNIC address blocks: 35796
Unique aggregates announced from the LACNIC address blocks: 18831
LACNIC Region origin ASes present in the Internet Routing Table: 1539
LACNIC Prefixes per ASN: 23.26
LACNIC Region origin ASes announcing only one prefix: 441
LACNIC Region transit ASes present in the Internet Routing Table: 272
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: 94454016
Equivalent to 5 /8s, 161 /16s and 65 /24s
Percentage of available LACNIC address space announced: 62.6
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: 8355
Total AfriNIC prefixes after maximum aggregation: 2033
AfriNIC Deaggregation factor: 4.11
Prefixes being announced from the AfriNIC address blocks: 6439
Unique aggregates announced from the AfriNIC address blocks: 2002
AfriNIC Region origin ASes present in the Internet Routing Table: 498
AfriNIC Prefixes per ASN: 12.93
AfriNIC Region origin ASes announcing only one prefix: 155
AfriNIC Region transit ASes present in the Internet Routing Table: 109
Average AfriNIC Region AS path length visible: 3.3
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: 30125568
Equivalent to 1 /8s, 203 /16s and 174 /24s
Percentage of available AfriNIC address space announced: 44.9
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 1951 11102 667 Korea Telecom (KIX)
7545 1628 303 86 TPG Internet Pty Ltd
17974 1609 503 38 PT Telekomunikasi Indonesia
4755 1499 385 158 TATA Communications formerly
9829 1166 989 28 National Internet Backbone
9583 1098 80 500 Sify Limited
24560 983 382 162 Bharti Airtel Ltd., Telemedia
7552 979 1062 11 Vietel Corporation
18101 959 121 155 Reliance Infocom Ltd Internet
4808 941 1953 272 CNCGROUP IP network China169
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 3483 3814 219 BellSouth.net Inc.
7029 2947 1042 212 Windstream Communications Inc
18566 2094 382 176 Covad Communications Co.
1785 1856 680 121 PaeTec Communications, Inc.
4323 1613 1089 386 tw telecom holdings, inc.
20115 1604 1549 626 Charter Communications
22773 1503 2909 104 Cox Communications Inc.
30036 1436 257 675 Mediacom Communications Corp
19262 1388 4683 401 Verizon Online LLC
7018 1319 7063 868 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 1491 480 15 Corbina telecom
6830 643 1927 412 UPC Broadband
34984 615 115 194 BILISIM TELEKOM
20940 546 173 439 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
3320 517 8168 390 Deutsche Telekom AG
12479 494 601 13 France Telecom Espana SA
3292 481 2106 408 TDC Data Networks
8866 461 133 26 Bulgarian Telecommunication C
8551 422 367 39 Bezeq International
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 1703 315 180 Types of queries are: POCs, o
28573 1520 1057 82 Types of queries are: POCs, o
8151 1315 2966 341 Uninet S.A. de C.V.
7303 1239 751 174 Telecom Argentina S.A.
27947 603 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 549 237 89 Types of queries are: POCs, o
6503 542 434 69 Axtel, S.A.B. de C.V.
11172 530 102 97 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 967 958 13 TEDATA
24863 781 146 32 LINKdotNET AS number
3741 281 939 230 The Internet Solution
15706 242 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
6713 235 519 14 Itissalat Al-MAGHRIB
29571 217 17 13 Ci Telecom Autonomous system
12258 196 28 61 Vodacom Internet Company
24835 194 80 8 RAYA Telecom - Egypt
16637 158 664 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 3483 3814 219 BellSouth.net Inc.
7029 2947 1042 212 Windstream Communications Inc
18566 2094 382 176 Covad Communications Co.
4766 1951 11102 667 Korea Telecom (KIX)
1785 1856 680 121 PaeTec Communications, Inc.
10620 1703 315 180 Types of queries are: POCs, o
7545 1628 303 86 TPG Internet Pty Ltd
4323 1613 1089 386 tw telecom holdings, inc.
17974 1609 503 38 PT Telekomunikasi Indonesia
20115 1604 1549 626 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 2947 2735 Windstream Communications Inc
18566 2094 1918 Covad Communications Co.
1785 1856 1735 PaeTec Communications, Inc.
17974 1609 1571 PT Telekomunikasi Indonesia
7545 1628 1542 TPG Internet Pty Ltd
10620 1703 1523 Types of queries are: POCs, o
8402 1491 1476 Corbina telecom
28573 1520 1438 Types of queries are: POCs, o
22773 1503 1399 Cox Communications Inc.
4755 1499 1341 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
41.223.92.0/22 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
66.171.32.0/20 705 MCI Communications Services,
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 /14:808 /15:1433 /16:12013 /17:6095 /18:10113
/19:20160 /20:27725 /21:27946 /22:37837 /23:35460 /24:197127
/25:11 /26:21 /27:21 /28:154 /29:135 /30:65
/31:0 /32:137
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2560 2947 Windstream Communications Inc
6389 2125 3483 BellSouth.net Inc.
18566 2044 2094 Covad Communications Co.
10620 1598 1703 Types of queries are: POCs, o
8402 1466 1491 Corbina telecom
30036 1396 1436 Mediacom Communications Corp
11492 1119 1156 CABLE ONE, INC.
1785 1058 1856 PaeTec Communications, Inc.
7011 1051 1168 Frontier Communications of Am
22773 963 1503 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:442 2:455 4:15 5:2 6:3 8:360
12:1945 13:1 14:550 15:11 16:3 17:7
20:9 23:71 24:1690 27:1069 31:716 32:62
33:2 34:2 36:4 38:767 40:114 41:2906
42:67 44:3 46:1116 47:3 49:292 50:455
52:13 55:5 56:2 57:45 58:872 59:480
60:351 61:1073 62:918 63:1962 64:4039 65:2311
66:4342 67:1998 68:1176 69:3148 70:902 71:361
72:1777 74:2637 75:430 76:320 77:933 78:871
79:433 80:1141 81:844 82:530 83:528 84:471
85:1167 86:417 87:914 88:354 89:1587 90:246
91:4327 92:536 93:1415 94:1322 95:1108 96:387
97:285 98:767 99:38 101:121 103:521 106:7
107:104 108:95 109:1120 110:665 111:809 112:360
113:485 114:609 115:685 116:876 117:688 118:861
119:1231 120:347 121:656 122:1551 123:1019 124:1291
125:1296 128:258 129:178 130:177 131:576 132:149
133:21 134:216 135:54 136:211 137:144 138:286
139:121 140:465 141:252 142:364 143:412 144:503
145:66 146:467 147:222 148:621 149:269 150:159
151:192 152:443 153:171 154:6 155:396 156:207
157:329 158:156 159:454 160:333 161:204 162:362
163:168 164:519 165:388 166:541 167:457 168:806
169:145 170:823 171:90 172:4 173:1768 174:588
175:404 176:325 177:413 178:1145 180:1186 181:38
182:661 183:243 184:409 185:1 186:1493 187:786
188:947 189:1165 190:5269 192:5928 193:5124 194:3562
195:3116 196:1267 197:170 198:3572 199:4198 200:5450
201:1691 202:8242 203:8401 204:4248 205:2386 206:2582
207:2768 208:3996 209:3530 210:2662 211:1445 212:1986
213:1799 214:818 215:91 216:4906 217:1493 218:558
219:333 220:1215 221:507 222:296 223:239
End of report
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