Routing Table Report 08:00 +10GMT Thu 01 Mar, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 392708
Prefixes after maximum aggregation: 168265
Deaggregation factor: 2.33
Unique aggregates announced to Internet: 193935
Total ASes present in the Internet Routing Table: 38053
Prefixes per ASN: 10.32
Origin-only ASes present in the Internet Routing Table: 32782
Origin ASes announcing only one prefix: 15523
Transit ASes present in the Internet Routing Table: 5271
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: 1135
Unregistered ASNs in the Routing Table: 197
Number of 32-bit ASNs allocated by the RIRs: 2299
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4859
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 394
Number of addresses announced to Internet: 2540308480
Equivalent to 151 /8s, 106 /16s and 8 /24s
Percentage of available address space announced: 68.5
Percentage of allocated address space announced: 68.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.0
Total number of prefixes smaller than registry allocations: 165430
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92898
Total APNIC prefixes after maximum aggregation: 30446
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 90228
Unique aggregates announced from the APNIC address blocks: 39381
APNIC Region origin ASes present in the Internet Routing Table: 4607
APNIC Prefixes per ASN: 19.58
APNIC Region origin ASes announcing only one prefix: 1252
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: 16
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 641056768
Equivalent to 38 /8s, 53 /16s and 192 /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: 147190
Total ARIN prefixes after maximum aggregation: 74894
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 119254
Unique aggregates announced from the ARIN address blocks: 49665
ARIN Region origin ASes present in the Internet Routing Table: 14849
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5667
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: 18
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 805341440
Equivalent to 48 /8s, 0 /16s and 137 /24s
Percentage of available ARIN address space announced: 64.0
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: 100071
Total RIPE prefixes after maximum aggregation: 52751
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 91634
Unique aggregates announced from the RIPE address blocks: 56737
RIPE Region origin ASes present in the Internet Routing Table: 16332
RIPE Prefixes per ASN: 5.61
RIPE Region origin ASes announcing only one prefix: 8006
RIPE Region transit ASes present in the Internet Routing Table: 2583
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: 501122560
Equivalent to 29 /8s, 222 /16s and 134 /24s
Percentage of available RIPE address space announced: 80.7
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: 38215
Total LACNIC prefixes after maximum aggregation: 7982
LACNIC Deaggregation factor: 4.79
Prefixes being announced from the LACNIC address blocks: 38064
Unique aggregates announced from the LACNIC address blocks: 19678
LACNIC Region origin ASes present in the Internet Routing Table: 1561
LACNIC Prefixes per ASN: 24.38
LACNIC Region origin ASes announcing only one prefix: 437
LACNIC Region transit ASes present in the Internet Routing Table: 279
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 97616896
Equivalent to 5 /8s, 209 /16s and 132 /24s
Percentage of available LACNIC address space announced: 64.6
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: 8772
Total AfriNIC prefixes after maximum aggregation: 2093
AfriNIC Deaggregation factor: 4.19
Prefixes being announced from the AfriNIC address blocks: 6807
Unique aggregates announced from the AfriNIC address blocks: 2090
AfriNIC Region origin ASes present in the Internet Routing Table: 510
AfriNIC Prefixes per ASN: 13.35
AfriNIC Region origin ASes announcing only one prefix: 161
AfriNIC Region transit ASes present in the Internet Routing Table: 119
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: 31480064
Equivalent to 1 /8s, 224 /16s and 89 /24s
Percentage of available AfriNIC address space announced: 46.9
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 1924 11104 679 Korea Telecom (KIX)
17974 1648 503 37 PT Telekomunikasi Indonesia
7545 1642 303 87 TPG Internet Pty Ltd
4755 1544 386 160 TATA Communications formerly
9829 1178 997 29 National Internet Backbone
9583 1131 83 481 Sify Limited
7552 1101 1062 11 Vietel Corporation
24560 1006 385 167 Bharti Airtel Ltd., Telemedia
4808 978 1946 279 CNCGROUP IP network China169
18101 950 130 155 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 3447 1040 172 Windstream Communications Inc
6389 3431 3807 200 BellSouth.net Inc.
18566 2092 382 177 Covad Communications Co.
1785 1875 680 125 PaeTec Communications, Inc.
20115 1631 1550 635 Charter Communications
4323 1608 1075 383 tw telecom holdings, inc.
22773 1537 2910 110 Cox Communications Inc.
30036 1423 255 736 Mediacom Communications Corp
19262 1390 4704 399 Verizon Online LLC
7018 1305 6995 855 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 1662 480 15 Corbina telecom
2118 1398 97 13 EUnet/RELCOM Autonomous Syste
15557 1088 2184 60 NEUF CEGETEL (formerly LDCOM
34984 655 187 171 BILISIM TELEKOM
6830 640 1926 411 UPC Broadband
20940 621 202 481 Akamai Technologies European
12479 606 644 55 France Telecom Espana SA
8551 600 360 81 Bezeq International
9116 541 326 32 Goldenlines main autonomous s
31148 541 37 9 FreeNet ISP
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 1754 324 173 Types of queries are: POCs, o
28573 1668 1088 69 Types of queries are: POCs, o
8151 1344 2994 342 Uninet S.A. de C.V.
7303 1328 822 186 Telecom Argentina S.A.
26615 897 672 33 Tim Celular S.A.
27947 643 68 109 Telconet S.A
11172 636 107 73 Alestra, S. de R.L. de C.V.
22047 581 322 17 Types of queries are: POCs, o
6503 565 418 67 Axtel, S.A.B. de C.V.
3816 563 240 89 Types of queries are: POCs, o
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 1258 958 13 TEDATA
24863 831 274 34 LINKdotNET AS number
6713 491 649 18 Itissalat Al-MAGHRIB
3741 277 923 228 The Internet Solution
15706 227 32 6 Sudatel Internet Exchange Aut
29571 211 16 10 Ci Telecom Autonomous system
12258 197 28 62 Vodacom Internet Company
24835 194 80 8 RAYA Telecom - Egypt
33776 168 12 19 Starcomms Nigeria Limited
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
7029 3447 1040 172 Windstream Communications Inc
6389 3431 3807 200 BellSouth.net Inc.
18566 2092 382 177 Covad Communications Co.
4766 1924 11104 679 Korea Telecom (KIX)
1785 1875 680 125 PaeTec Communications, Inc.
10620 1754 324 173 Types of queries are: POCs, o
28573 1668 1088 69 Types of queries are: POCs, o
8402 1662 480 15 Corbina telecom
17974 1648 503 37 PT Telekomunikasi Indonesia
7545 1642 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 3431 3231 BellSouth.net Inc.
18566 2092 1915 Covad Communications Co.
1785 1875 1750 PaeTec Communications, Inc.
8402 1662 1647 Corbina telecom
17974 1648 1611 PT Telekomunikasi Indonesia
28573 1668 1599 Types of queries are: POCs, o
10620 1754 1581 Types of queries are: POCs, o
7545 1642 1555 TPG Internet Pty Ltd
22773 1537 1427 Cox Communications Inc.
2118 1398 1385 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 18779 Guru.com
23.27.0.0/16 18779 Guru.com
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 /12:234
/13:458 /14:814 /15:1468 /16:12113 /17:6210 /18:10332
/19:20485 /20:28308 /21:29007 /22:39306 /23:36778 /24:206537
/25:11 /26:21 /27:18 /28:146 /29:131 /30:61
/31:0 /32:129
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3085 3447 Windstream Communications Inc
6389 2105 3431 BellSouth.net Inc.
18566 2041 2092 Covad Communications Co.
10620 1651 1754 Types of queries are: POCs, o
8402 1641 1662 Corbina telecom
30036 1373 1423 Mediacom Communications Corp
11492 1123 1160 CABLE ONE, INC.
8452 1066 1258 TEDATA
1785 1064 1875 PaeTec Communications, Inc.
7011 1040 1156 Frontier Communications of Am
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:522 2:671 4:14 6:3 8:390 12:1964
13:1 14:599 15:11 16:3 17:7 20:8
23:136 24:1732 27:1204 31:950 32:60 33:2
34:2 36:9 37:212 38:773 40:116 41:3005
42:120 44:3 46:1384 47:3 49:333 50:511
52:13 54:4 55:7 56:3 57:35 58:927
59:486 60:340 61:1095 62:961 63:2004 64:4100
65:2277 66:4455 67:2048 68:1170 69:3161 70:912
71:409 72:1790 74:2645 75:468 76:319 77:972
78:962 79:486 80:1221 81:886 82:632 83:539
84:588 85:1155 86:734 87:914 88:332 89:1574
90:284 91:4523 92:513 93:1369 94:1373 95:1099
96:416 97:317 98:817 99:38 100:5 101:151
103:841 106:44 107:166 108:178 109:1520 110:722
111:856 112:423 113:535 114:608 115:785 116:859
117:705 118:900 119:1247 120:363 121:701 122:1585
123:1078 124:1303 125:1319 128:499 129:182 130:258
131:587 132:155 133:21 134:223 135:62 136:210
137:181 138:267 139:144 140:462 141:263 142:372
143:378 144:501 145:69 146:477 147:255 148:713
149:299 150:155 151:198 152:443 153:171 154:6
155:415 156:210 157:338 158:164 159:445 160:318
161:227 162:339 163:177 164:525 165:395 166:558
167:458 168:766 169:147 170:839 171:118 172:4
173:1730 174:598 175:421 176:513 177:535 178:1285
180:1182 181:68 182:732 183:283 184:434 185:1
186:2065 187:857 188:1077 189:1207 190:5458 192:5942
193:5561 194:4348 195:3396 196:1268 197:167 198:3581
199:4374 200:5633 201:1735 202:8168 203:8578 204:4282
205:2410 206:2653 207:2719 208:4049 209:3524 210:2691
211:1451 212:2018 213:1864 214:823 215:98 216:5006
217:1509 218:534 219:329 220:1227 221:547 222:297
223:300
End of report
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