Routing Table Report 08:00 +10GMT Sat 10 Mar, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 393456
Prefixes after maximum aggregation: 168687
Deaggregation factor: 2.33
Unique aggregates announced to Internet: 194629
Total ASes present in the Internet Routing Table: 38113
Prefixes per ASN: 10.32
Origin-only ASes present in the Internet Routing Table: 32841
Origin ASes announcing only one prefix: 15507
Transit ASes present in the Internet Routing Table: 5272
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: 26
Max AS path prepend of ASN (51742) 24
Prefixes from unregistered ASNs in the Routing Table: 1273
Unregistered ASNs in the Routing Table: 261
Number of 32-bit ASNs allocated by the RIRs: 2313
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4934
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 570
Number of addresses announced to Internet: 2543112960
Equivalent to 151 /8s, 148 /16s and 211 /24s
Percentage of available address space announced: 68.6
Percentage of allocated address space announced: 68.6
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.1
Total number of prefixes smaller than registry allocations: 165537
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92733
Total APNIC prefixes after maximum aggregation: 30468
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 90139
Unique aggregates announced from the APNIC address blocks: 39402
APNIC Region origin ASes present in the Internet Routing Table: 4620
APNIC Prefixes per ASN: 19.51
APNIC Region origin ASes announcing only one prefix: 1258
APNIC Region transit ASes present in the Internet Routing Table: 703
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 17
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 640707328
Equivalent to 38 /8s, 48 /16s and 107 /24s
Percentage of available APNIC address space announced: 81.3
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: 147271
Total ARIN prefixes after maximum aggregation: 75157
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119096
Unique aggregates announced from the ARIN address blocks: 49789
ARIN Region origin ASes present in the Internet Routing Table: 14863
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5657
ARIN Region transit ASes present in the Internet Routing Table: 1512
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 16
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 806427392
Equivalent to 48 /8s, 17 /16s and 27 /24s
Percentage of available ARIN address space announced: 64.1
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: 100658
Total RIPE prefixes after maximum aggregation: 52819
RIPE Deaggregation factor: 1.91
Prefixes being announced from the RIPE address blocks: 92252
Unique aggregates announced from the RIPE address blocks: 56938
RIPE Region origin ASes present in the Internet Routing Table: 16329
RIPE Prefixes per ASN: 5.65
RIPE Region origin ASes announcing only one prefix: 7994
RIPE Region transit ASes present in the Internet Routing Table: 2579
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 501553408
Equivalent to 29 /8s, 229 /16s and 25 /24s
Percentage of available RIPE address space announced: 80.8
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: 38287
Total LACNIC prefixes after maximum aggregation: 8029
LACNIC Deaggregation factor: 4.77
Prefixes being announced from the LACNIC address blocks: 38163
Unique aggregates announced from the LACNIC address blocks: 19725
LACNIC Region origin ASes present in the Internet Routing Table: 1564
LACNIC Prefixes per ASN: 24.40
LACNIC Region origin ASes announcing only one prefix: 437
LACNIC Region transit ASes present in the Internet Routing Table: 277
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 98120192
Equivalent to 5 /8s, 217 /16s and 50 /24s
Percentage of available LACNIC address space announced: 65.0
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: 8691
Total AfriNIC prefixes after maximum aggregation: 2090
AfriNIC Deaggregation factor: 4.16
Prefixes being announced from the AfriNIC address blocks: 6803
Unique aggregates announced from the AfriNIC address blocks: 2159
AfriNIC Region origin ASes present in the Internet Routing Table: 515
AfriNIC Prefixes per ASN: 13.21
AfriNIC Region origin ASes announcing only one prefix: 161
AfriNIC Region transit ASes present in the Internet Routing Table: 117
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: 31544320
Equivalent to 1 /8s, 225 /16s and 84 /24s
Percentage of available AfriNIC address space announced: 47.0
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 1932 11106 682 Korea Telecom (KIX)
17974 1655 503 37 PT Telekomunikasi Indonesia
7545 1643 303 87 TPG Internet Pty Ltd
4755 1554 386 161 TATA Communications formerly
9583 1247 95 533 Sify Limited
9829 1111 1000 30 National Internet Backbone
7552 1101 1062 11 Vietel Corporation
24560 1003 383 166 Bharti Airtel Ltd., Telemedia
4808 978 1946 280 CNCGROUP IP network China169
18101 951 131 156 Reliance Infocom Ltd Internet
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
7029 3450 1040 172 Windstream Communications Inc
6389 3405 3807 199 BellSouth.net Inc.
18566 2092 382 177 Covad Communications Co.
1785 1883 680 127 PaeTec Communications, Inc.
20115 1634 1555 634 Charter Communications
4323 1603 1075 382 tw telecom holdings, inc.
22773 1543 2910 111 Cox Communications Inc.
30036 1418 258 757 Mediacom Communications Corp
7018 1287 9809 848 AT&T Services, Inc.
2386 1163 493 860 AT&T Data Communications Serv
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 1679 544 16 Corbina telecom
2118 1421 97 13 EUnet/RELCOM Autonomous Syste
15557 1087 2184 60 NEUF CEGETEL (formerly LDCOM
34984 657 188 170 BILISIM TELEKOM
6830 640 1927 411 UPC Broadband
12479 640 648 54 France Telecom Espana SA
20940 630 205 489 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
31148 540 37 9 FreeNet ISP
3320 532 8442 398 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 1761 326 160 Types of queries are: POCs, o
28573 1686 1092 57 Types of queries are: POCs, o
8151 1344 2994 340 Uninet S.A. de C.V.
7303 1324 822 181 Telecom Argentina S.A.
26615 900 676 30 Tim Celular S.A.
27947 655 68 110 Telconet S.A
11172 636 107 73 Alestra, S. de R.L. de C.V.
22047 582 322 17 Types of queries are: POCs, o
3816 561 240 89 Types of queries are: POCs, o
6503 561 418 66 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 1250 958 13 TEDATA
24863 831 274 34 LINKdotNET AS number
6713 488 649 18 Itissalat Al-MAGHRIB
3741 277 923 228 The Internet Solution
15706 227 32 6 Sudatel Internet Exchange Aut
12258 197 28 62 Vodacom Internet Company
24835 182 80 8 RAYA Telecom - Egypt
33776 161 12 16 Starcomms Nigeria Limited
36923 157 20 4 Swift Networks Limited
29571 156 15 16 Ci Telecom Autonomous system
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
7029 3450 1040 172 Windstream Communications Inc
6389 3405 3807 199 BellSouth.net Inc.
18566 2092 382 177 Covad Communications Co.
4766 1932 11106 682 Korea Telecom (KIX)
1785 1883 680 127 PaeTec Communications, Inc.
10620 1761 326 160 Types of queries are: POCs, o
28573 1686 1092 57 Types of queries are: POCs, o
8402 1679 544 16 Corbina telecom
17974 1655 503 37 PT Telekomunikasi Indonesia
7545 1643 303 87 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6389 3405 3206 BellSouth.net Inc.
18566 2092 1915 Covad Communications Co.
1785 1883 1756 PaeTec Communications, Inc.
8402 1679 1663 Corbina telecom
28573 1686 1629 Types of queries are: POCs, o
17974 1655 1618 PT Telekomunikasi Indonesia
10620 1761 1601 Types of queries are: POCs, o
7545 1643 1556 TPG Internet Pty Ltd
22773 1543 1432 Cox Communications Inc.
2118 1421 1408 EUnet/RELCOM Autonomous Syste
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
23.27.0.0/20 54500 EGIHosting
23.27.0.0/16 54500 EGIHosting
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 /10:28 /11:81 /12:236
/13:458 /14:816 /15:1475 /16:12127 /17:6214 /18:10356
/19:20459 /20:28330 /21:29062 /22:39468 /23:36832 /24:206926
/25:11 /26:21 /27:20 /28:154 /29:139 /30:67
/31:0 /32:144
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3088 3450 Windstream Communications Inc
6389 2102 3405 BellSouth.net Inc.
18566 2041 2092 Covad Communications Co.
10620 1658 1761 Types of queries are: POCs, o
8402 1657 1679 Corbina telecom
30036 1367 1418 Mediacom Communications Corp
11492 1125 1162 CABLE ONE, INC.
1785 1064 1883 PaeTec Communications, Inc.
8452 1060 1250 TEDATA
7011 1042 1157 Frontier Communications of Am
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:521 2:668 4:14 6:3 8:392 12:1960
13:1 14:599 15:12 16:3 17:7 20:8
23:142 24:1744 27:1226 31:951 32:57 33:2
34:2 36:9 37:237 38:772 40:117 41:2997
42:123 44:3 46:1403 47:3 49:337 50:513
52:13 54:5 55:11 56:3 57:36 58:909
59:486 60:280 61:1078 62:975 63:2007 64:4103
65:2278 66:4453 67:2017 68:1157 69:3161 70:883
71:312 72:1783 74:2557 75:469 76:320 77:972
78:956 79:481 80:1207 81:887 82:635 83:537
84:606 85:1187 86:734 87:915 88:334 89:1566
90:285 91:4554 92:515 93:1382 94:1372 95:1111
96:371 97:316 98:831 99:38 100:5 101:145
103:880 106:63 107:171 108:195 109:1533 110:726
111:859 112:427 113:534 114:608 115:767 116:858
117:705 118:909 119:1246 120:328 121:663 122:1581
123:1072 124:1303 125:1337 128:505 129:183 130:256
131:588 132:158 133:21 134:226 135:62 136:210
137:182 138:275 139:144 140:465 141:236 142:372
143:410 144:495 145:68 146:486 147:244 148:705
149:299 150:155 151:176 152:446 153:171 154:6
155:446 156:209 157:338 158:162 159:445 160:326
161:227 162:341 163:176 164:514 165:394 166:563
167:461 168:804 169:147 170:848 171:117 172:4
173:1716 174:608 175:421 176:542 177:532 178:1286
180:1188 181:67 182:756 183:285 184:442 185:1
186:2099 187:854 188:1053 189:1206 190:5464 192:5949
193:5577 194:4408 195:3608 196:1261 197:168 198:3586
199:4399 200:5640 201:1768 202:8171 203:8585 204:4280
205:2427 206:2663 207:2721 208:4038 209:3549 210:2685
211:1439 212:1971 213:1881 214:867 215:101 216:5016
217:1528 218:524 219:328 220:1225 221:539 222:297
223:312
End of report
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