Routing Table Report 08:00 +10GMT Wed 11 Jan, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 383977
Prefixes after maximum aggregation: 166604
Deaggregation factor: 2.30
Unique aggregates announced to Internet: 190833
Total ASes present in the Internet Routing Table: 37802
Prefixes per ASN: 10.16
Origin-only ASes present in the Internet Routing Table: 32568
Origin ASes announcing only one prefix: 15528
Transit ASes present in the Internet Routing Table: 5234
Transit-only ASes present in the Internet Routing Table: 125
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: 2829
Unregistered ASNs in the Routing Table: 1112
Number of 32-bit ASNs allocated by the RIRs: 2168
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4391
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 121
Number of addresses announced to Internet: 2524531712
Equivalent to 150 /8s, 121 /16s and 76 /24s
Percentage of available address space announced: 68.1
Percentage of allocated address space announced: 68.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.9
Total number of prefixes smaller than registry allocations: 160997
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 91551
Total APNIC prefixes after maximum aggregation: 30070
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 88895
Unique aggregates announced from the APNIC address blocks: 38915
APNIC Region origin ASes present in the Internet Routing Table: 4583
APNIC Prefixes per ASN: 19.40
APNIC Region origin ASes announcing only one prefix: 1262
APNIC Region transit ASes present in the Internet Routing Table: 698
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: 633121280
Equivalent to 37 /8s, 188 /16s and 170 /24s
Percentage of available APNIC address space announced: 80.3
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: 146007
Total ARIN prefixes after maximum aggregation: 74531
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118326
Unique aggregates announced from the ARIN address blocks: 49031
ARIN Region origin ASes present in the Internet Routing Table: 14771
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5670
ARIN Region transit ASes present in the Internet Routing Table: 1504
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: 804664320
Equivalent to 47 /8s, 246 /16s and 52 /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: 96577
Total RIPE prefixes after maximum aggregation: 51912
RIPE Deaggregation factor: 1.86
Prefixes being announced from the RIPE address blocks: 88573
Unique aggregates announced from the RIPE address blocks: 55781
RIPE Region origin ASes present in the Internet Routing Table: 16227
RIPE Prefixes per ASN: 5.46
RIPE Region origin ASes announcing only one prefix: 7986
RIPE Region transit ASes present in the Internet Routing Table: 2565
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: 496599040
Equivalent to 29 /8s, 153 /16s and 128 /24s
Percentage of available RIPE address space announced: 80.0
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: 36466
Total LACNIC prefixes after maximum aggregation: 7975
LACNIC Deaggregation factor: 4.57
Prefixes being announced from the LACNIC address blocks: 36202
Unique aggregates announced from the LACNIC address blocks: 19168
LACNIC Region origin ASes present in the Internet Routing Table: 1550
LACNIC Prefixes per ASN: 23.36
LACNIC Region origin ASes announcing only one prefix: 449
LACNIC Region transit ASes present in the Internet Routing Table: 280
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: 95200000
Equivalent to 5 /8s, 172 /16s and 163 /24s
Percentage of available LACNIC address space announced: 63.0
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: 8278
Total AfriNIC prefixes after maximum aggregation: 2043
AfriNIC Deaggregation factor: 4.05
Prefixes being announced from the AfriNIC address blocks: 6329
Unique aggregates announced from the AfriNIC address blocks: 2033
AfriNIC Region origin ASes present in the Internet Routing Table: 504
AfriNIC Prefixes per ASN: 12.56
AfriNIC Region origin ASes announcing only one prefix: 161
AfriNIC Region transit ASes present in the Internet Routing Table: 115
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: 30766080
Equivalent to 1 /8s, 213 /16s and 116 /24s
Percentage of available AfriNIC address space announced: 45.8
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 1915 11097 662 Korea Telecom (KIX)
7545 1627 303 86 TPG Internet Pty Ltd
17974 1624 503 37 PT Telekomunikasi Indonesia
4755 1499 385 157 TATA Communications formerly
9829 1163 989 28 National Internet Backbone
9583 1117 81 495 Sify Limited
7552 1074 1062 11 Vietel Corporation
24560 1010 384 167 Bharti Airtel Ltd., Telemedia
18101 977 131 157 Reliance Infocom Ltd Internet
4808 973 1946 275 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 3475 3814 218 BellSouth.net Inc.
7029 3256 1042 213 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
1785 1866 680 122 PaeTec Communications, Inc.
20115 1609 1549 629 Charter Communications
4323 1607 1080 385 tw telecom holdings, inc.
22773 1519 2909 107 Cox Communications Inc.
30036 1483 263 690 Mediacom Communications Corp
19262 1388 4683 401 Verizon Online LLC
7018 1311 7046 862 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 1577 480 15 Corbina telecom
15557 1096 2161 64 NEUF CEGETEL (formerly LDCOM
2118 927 99 14 EUnet/RELCOM Autonomous Syste
6830 644 1928 413 UPC Broadband
34984 635 132 197 BILISIM TELEKOM
20940 557 181 447 Akamai Technologies European
8551 555 360 81 Bezeq International
12479 547 636 53 France Telecom Espana SA
9116 541 326 32 Goldenlines main autonomous s
3320 531 8162 397 Deutsche Telekom AG
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 1720 319 159 Types of queries are: POCs, o
28573 1569 1065 77 Types of queries are: POCs, o
8151 1321 2978 338 Uninet S.A. de C.V.
7303 1252 756 178 Telecom Argentina S.A.
27947 611 73 95 Telconet S.A
22047 582 322 17 Types of queries are: POCs, o
7738 551 1050 31 Telecomunicacoes da Bahia S.A
3816 550 237 91 Types of queries are: POCs, o
11172 535 102 101 Alestra, S. de R.L. de C.V.
6503 527 434 68 Axtel, S.A.B. 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 1025 958 13 TEDATA
24863 792 146 33 LINKdotNET AS number
3741 280 939 229 The Internet Solution
6713 250 649 18 Itissalat Al-MAGHRIB
33776 240 13 8 Starcomms Nigeria Limited
29571 217 17 13 Ci Telecom Autonomous system
12258 196 28 61 Vodacom Internet Company
24835 188 80 8 RAYA Telecom - Egypt
16637 157 664 85 MTN Network Solutions
36923 157 20 4 Swift Networks Limited
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 3475 3814 218 BellSouth.net Inc.
7029 3256 1042 213 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
4766 1915 11097 662 Korea Telecom (KIX)
1785 1866 680 122 PaeTec Communications, Inc.
10620 1720 319 159 Types of queries are: POCs, o
7545 1627 303 86 TPG Internet Pty Ltd
17974 1624 503 37 PT Telekomunikasi Indonesia
20115 1609 1549 629 Charter Communications
4323 1607 1080 385 tw telecom holdings, inc.
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 3256 3043 Windstream Communications Inc
18566 2094 1917 Covad Communications Co.
1785 1866 1744 PaeTec Communications, Inc.
17974 1624 1587 PT Telekomunikasi Indonesia
8402 1577 1562 Corbina telecom
10620 1720 1561 Types of queries are: POCs, o
7545 1627 1541 TPG Internet Pty Ltd
28573 1569 1492 Types of queries are: POCs, o
22773 1519 1412 Cox Communications Inc.
4755 1499 1342 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
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
37.34.48.0/21 35470 XL Network
41.222.79.0/24 36938 >>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 /14:814 /15:1455 /16:12056 /17:6125 /18:10159
/19:20280 /20:27958 /21:28355 /22:38471 /23:35800 /24:201115
/25:11 /26:21 /27:20 /28:154 /29:135 /30:67
/31:0 /32:139
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2860 3256 Windstream Communications Inc
6389 2119 3475 BellSouth.net Inc.
18566 2043 2094 Covad Communications Co.
10620 1615 1720 Types of queries are: POCs, o
8402 1556 1577 Corbina telecom
30036 1442 1483 Mediacom Communications Corp
11492 1115 1152 CABLE ONE, INC.
1785 1065 1866 PaeTec Communications, Inc.
15557 1046 1096 NEUF CEGETEL (formerly LDCOM
7011 1042 1159 Frontier Communications of Am
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:489 2:441 4:15 5:1 6:3 8:369
12:1949 13:1 14:580 15:11 16:3 17:6
20:9 23:94 24:1711 27:1168 31:871 32:62
33:2 34:2 36:8 37:80 38:787 40:114
41:2832 42:85 44:3 46:1202 47:3 49:315
50:501 52:13 55:6 56:2 57:37 58:898
59:479 60:340 61:1077 62:940 63:1960 64:4094
65:2296 66:4361 67:2003 68:1150 69:3143 70:918
71:427 72:1787 74:2641 75:446 76:321 77:935
78:895 79:495 80:1187 81:861 82:542 83:533
84:586 85:1165 86:753 87:911 88:350 89:1593
90:261 91:4410 92:533 93:1527 94:1356 95:1054
96:395 97:296 98:788 99:38 100:18 101:128
103:616 106:9 107:131 108:105 109:1426 110:682
111:830 112:400 113:509 114:599 115:735 116:849
117:703 118:895 119:1224 120:384 121:643 122:1585
123:1047 124:1302 125:1303 128:469 129:184 130:188
131:584 132:154 133:21 134:217 135:57 136:211
137:148 138:286 139:143 140:465 141:261 142:362
143:389 144:500 145:68 146:471 147:224 148:615
149:276 150:158 151:193 152:441 153:166 154:6
155:410 156:207 157:336 158:155 159:438 160:343
161:205 162:334 163:178 164:511 165:395 166:558
167:455 168:753 169:146 170:828 171:101 172:4
173:1778 174:600 175:418 176:344 177:447 178:1172
180:1195 181:43 182:672 183:264 184:431 185:1
186:1496 187:812 188:1032 189:1160 190:5254 192:5943
193:5459 194:3937 195:3303 196:1265 197:91 198:3573
199:4236 200:5504 201:1693 202:8206 203:8512 204:4264
205:2410 206:2616 207:2735 208:4007 209:3529 210:2672
211:1465 212:1988 213:1817 214:835 215:92 216:4914
217:1475 218:558 219:332 220:1215 221:544 222:298
223:251
End of report
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