Routing Table Report 08:00 +10GMT Thu 08 Dec, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 377965
Prefixes after maximum aggregation: 165634
Deaggregation factor: 2.28
Unique aggregates announced to Internet: 188467
Total ASes present in the Internet Routing Table: 37652
Prefixes per ASN: 10.04
Origin-only ASes present in the Internet Routing Table: 32433
Origin ASes announcing only one prefix: 15507
Transit ASes present in the Internet Routing Table: 5219
Transit-only ASes present in the Internet Routing Table: 135
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: 2596
Unregistered ASNs in the Routing Table: 1030
Number of 32-bit ASNs allocated by the RIRs: 2054
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4053
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 85
Number of addresses announced to Internet: 2516088576
Equivalent to 149 /8s, 248 /16s and 119 /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: 158050
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90415
Total APNIC prefixes after maximum aggregation: 29925
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 87849
Unique aggregates announced from the APNIC address blocks: 38579
APNIC Region origin ASes present in the Internet Routing Table: 4555
APNIC Prefixes per ASN: 19.29
APNIC Region origin ASes announcing only one prefix: 1270
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: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 630828288
Equivalent to 37 /8s, 153 /16s and 173 /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: 144973
Total ARIN prefixes after maximum aggregation: 74274
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 117390
Unique aggregates announced from the ARIN address blocks: 48548
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: 5627
ARIN Region transit ASes present in the Internet Routing Table: 1506
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: 803359488
Equivalent to 47 /8s, 226 /16s and 75 /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: 93226
Total RIPE prefixes after maximum aggregation: 51431
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 85483
Unique aggregates announced from the RIPE address blocks: 54737
RIPE Region origin ASes present in the Internet Routing Table: 16168
RIPE Prefixes per ASN: 5.29
RIPE Region origin ASes announcing only one prefix: 8009
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: 24
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 493262080
Equivalent to 29 /8s, 102 /16s and 149 /24s
Percentage of available RIPE address space announced: 79.5
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: 36239
Total LACNIC prefixes after maximum aggregation: 7871
LACNIC Deaggregation factor: 4.60
Prefixes being announced from the LACNIC address blocks: 35842
Unique aggregates announced from the LACNIC address blocks: 18843
LACNIC Region origin ASes present in the Internet Routing Table: 1542
LACNIC Prefixes per ASN: 23.24
LACNIC Region origin ASes announcing only one prefix: 445
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: 94493440
Equivalent to 5 /8s, 161 /16s and 219 /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: 8353
Total AfriNIC prefixes after maximum aggregation: 2059
AfriNIC Deaggregation factor: 4.06
Prefixes being announced from the AfriNIC address blocks: 6417
Unique aggregates announced from the AfriNIC address blocks: 2033
AfriNIC Region origin ASes present in the Internet Routing Table: 500
AfriNIC Prefixes per ASN: 12.83
AfriNIC Region origin ASes announcing only one prefix: 156
AfriNIC Region transit ASes present in the Internet Routing Table: 112
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: 30358528
Equivalent to 1 /8s, 207 /16s and 60 /24s
Percentage of available AfriNIC address space announced: 45.2
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 1606 503 38 PT Telekomunikasi Indonesia
4755 1496 385 158 TATA Communications formerly
9829 1168 989 28 National Internet Backbone
9583 1101 81 496 Sify Limited
24560 983 382 162 Bharti Airtel Ltd., Telemedia
7552 978 1062 11 Vietel Corporation
18101 961 121 154 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 1857 680 121 PaeTec Communications, Inc.
4323 1613 1089 386 tw telecom holdings, inc.
20115 1603 1549 630 Charter Communications
22773 1503 2909 104 Cox Communications Inc.
30036 1437 257 674 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 1480 480 15 Corbina telecom
6830 644 1927 412 UPC Broadband
34984 620 125 199 BILISIM TELEKOM
20940 542 173 435 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
3320 523 8161 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 1719 318 155 Types of queries are: POCs, o
28573 1533 1059 72 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 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 549 237 89 Types of queries are: POCs, o
6503 542 434 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 960 958 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 1857 680 121 PaeTec Communications, Inc.
10620 1719 318 155 Types of queries are: POCs, o
7545 1628 303 86 TPG Internet Pty Ltd
4323 1613 1089 386 tw telecom holdings, inc.
17974 1606 503 38 PT Telekomunikasi Indonesia
20115 1603 1549 630 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 1857 1736 PaeTec Communications, Inc.
17974 1606 1568 PT Telekomunikasi Indonesia
10620 1719 1564 Types of queries are: POCs, o
7545 1628 1542 TPG Internet Pty Ltd
8402 1480 1465 Corbina telecom
28573 1533 1461 Types of queries are: POCs, o
22773 1503 1399 Cox Communications Inc.
4755 1496 1338 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
66.171.32.0/20 705 MCI Communications Services,
66.175.222.0/23 30058 FDC Servers.net, LLC
66.180.239.0/24 35888 VIGNETTE CORPORATION
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 /15:1436 /16:12003 /17:6088 /18:10104
/19:20163 /20:27734 /21:27935 /22:37833 /23:35447 /24:197026
/25:11 /26:21 /27:20 /28:154 /29:135 /30:65
/31:0 /32:139
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 1614 1719 Types of queries are: POCs, o
8402 1455 1480 Corbina telecom
30036 1397 1437 Mediacom Communications Corp
11492 1116 1153 CABLE ONE, INC.
1785 1059 1857 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 2:454 4:14 5:1 6:3 8:360
12:1948 13:1 14:551 15:11 16:3 17:7
20:9 23:71 24:1694 27:1069 31:716 32:62
33:2 34:2 36:4 38:767 40:114 41:2895
42:68 44:3 46:1116 47:3 49:291 50:456
52:13 55:6 56:2 57:45 58:871 59:481
60:341 61:1073 62:917 63:1965 64:4038 65:2308
66:4342 67:1997 68:1176 69:3145 70:902 71:362
72:1776 74:2636 75:431 76:319 77:931 78:878
79:436 80:1127 81:844 82:527 83:528 84:467
85:1163 86:417 87:912 88:354 89:1586 90:247
91:4335 92:536 93:1401 94:1318 95:1098 96:387
97:286 98:774 99:38 101:119 103:519 106:7
107:105 108:95 109:1119 110:661 111:814 112:354
113:485 114:608 115:681 116:861 117:696 118:865
119:1219 120:346 121:656 122:1550 123:1018 124:1294
125:1285 128:252 129:178 130:177 131:576 132:149
133:21 134:214 135:55 136:211 137:144 138:287
139:121 140:465 141:251 142:365 143:399 144:505
145:66 146:467 147:223 148:621 149:270 150:158
151:192 152:442 153:171 154:6 155:395 156:207
157:329 158:156 159:455 160:333 161:203 162:362
163:168 164:515 165:388 166:541 167:459 168:813
169:145 170:823 171:90 172:4 173:1762 174:591
175:406 176:331 177:443 178:1148 180:1188 181:38
182:657 183:243 184:393 185:1 186:1471 187:785
188:946 189:1165 190:5261 192:5929 193:5119 194:3564
195:3114 196:1267 197:173 198:3569 199:4171 200:5457
201:1693 202:8261 203:8407 204:4248 205:2385 206:2578
207:2771 208:4004 209:3532 210:2667 211:1445 212:1987
213:1798 214:819 215:92 216:4905 217:1495 218:557
219:331 220:1215 221:506 222:297 223:239
End of report
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