Routing Table Report 08:00 +10GMT Wed 07 Mar, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 393247
Prefixes after maximum aggregation: 168623
Deaggregation factor: 2.33
Unique aggregates announced to Internet: 194336
Total ASes present in the Internet Routing Table: 38084
Prefixes per ASN: 10.33
Origin-only ASes present in the Internet Routing Table: 32815
Origin ASes announcing only one prefix: 15522
Transit ASes present in the Internet Routing Table: 5269
Transit-only ASes present in the Internet Routing Table: 129
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: 1148
Unregistered ASNs in the Routing Table: 210
Number of 32-bit ASNs allocated by the RIRs: 2310
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4908
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 492
Number of addresses announced to Internet: 2543000320
Equivalent to 151 /8s, 147 /16s and 27 /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: 165751
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92792
Total APNIC prefixes after maximum aggregation: 30541
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 90187
Unique aggregates announced from the APNIC address blocks: 39441
APNIC Region origin ASes present in the Internet Routing Table: 4615
APNIC Prefixes per ASN: 19.54
APNIC Region origin ASes announcing only one prefix: 1256
APNIC Region transit ASes present in the Internet Routing Table: 704
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: 640597504
Equivalent to 38 /8s, 46 /16s and 190 /24s
Percentage of available APNIC address space announced: 81.2
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: 147557
Total ARIN prefixes after maximum aggregation: 75127
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119360
Unique aggregates announced from the ARIN address blocks: 49720
ARIN Region origin ASes present in the Internet Routing Table: 14863
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5671
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: 16
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 806610944
Equivalent to 48 /8s, 19 /16s and 232 /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: 100414
Total RIPE prefixes after maximum aggregation: 52764
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 91904
Unique aggregates announced from the RIPE address blocks: 56786
RIPE Region origin ASes present in the Internet Routing Table: 16322
RIPE Prefixes per ASN: 5.63
RIPE Region origin ASes announcing only one prefix: 7993
RIPE Region transit ASes present in the Internet Routing Table: 2578
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 23
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 501614848
Equivalent to 29 /8s, 230 /16s and 9 /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: 38108
Total LACNIC prefixes after maximum aggregation: 7983
LACNIC Deaggregation factor: 4.77
Prefixes being announced from the LACNIC address blocks: 38013
Unique aggregates announced from the LACNIC address blocks: 19681
LACNIC Region origin ASes present in the Internet Routing Table: 1564
LACNIC Prefixes per ASN: 24.30
LACNIC Region origin ASes announcing only one prefix: 439
LACNIC Region transit ASes present in the Internet Routing Table: 274
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: 97916160
Equivalent to 5 /8s, 214 /16s and 21 /24s
Percentage of available LACNIC address space announced: 64.8
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: 8714
Total AfriNIC prefixes after maximum aggregation: 2096
AfriNIC Deaggregation factor: 4.16
Prefixes being announced from the AfriNIC address blocks: 6826
Unique aggregates announced from the AfriNIC address blocks: 2159
AfriNIC Region origin ASes present in the Internet Routing Table: 516
AfriNIC Prefixes per ASN: 13.23
AfriNIC Region origin ASes announcing only one prefix: 163
AfriNIC Region transit ASes present in the Internet Routing Table: 118
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: 31560704
Equivalent to 1 /8s, 225 /16s and 148 /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 1925 11104 676 Korea Telecom (KIX)
17974 1652 503 36 PT Telekomunikasi Indonesia
7545 1644 303 88 TPG Internet Pty Ltd
4755 1551 386 160 TATA Communications formerly
9583 1199 91 509 Sify Limited
9829 1183 997 29 National Internet Backbone
7552 1101 1062 11 Vietel Corporation
24560 1003 383 166 Bharti Airtel Ltd., Telemedia
4808 979 1948 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 3451 1040 172 Windstream Communications Inc
6389 3413 3807 199 BellSouth.net Inc.
18566 2091 382 177 Covad Communications Co.
1785 1880 680 127 PaeTec Communications, Inc.
20115 1633 1555 633 Charter Communications
4323 1606 1075 382 tw telecom holdings, inc.
22773 1541 2910 110 Cox Communications Inc.
30036 1414 258 756 Mediacom Communications Corp
19262 1388 4703 398 Verizon Online LLC
7018 1293 9809 851 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 1658 544 16 Corbina telecom
2118 1421 97 13 EUnet/RELCOM Autonomous Syste
15557 1089 2184 60 NEUF CEGETEL (formerly LDCOM
34984 657 188 170 BILISIM TELEKOM
6830 639 1926 410 UPC Broadband
12479 637 645 55 France Telecom Espana SA
20940 623 202 483 Akamai Technologies European
8551 602 360 81 Bezeq International
9116 541 326 32 Goldenlines main autonomous s
31148 540 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 1761 325 169 Types of queries are: POCs, o
28573 1668 1089 55 Types of queries are: POCs, o
8151 1343 2994 339 Uninet S.A. de C.V.
7303 1328 822 186 Telecom Argentina S.A.
26615 898 672 33 Tim Celular S.A.
27947 655 68 110 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 562 418 67 Axtel, S.A.B. de C.V.
3816 559 240 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 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
33776 186 12 19 Starcomms Nigeria Limited
24835 181 80 8 RAYA Telecom - Egypt
36923 157 20 4 Swift Networks Limited
29571 153 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 3451 1040 172 Windstream Communications Inc
6389 3413 3807 199 BellSouth.net Inc.
18566 2091 382 177 Covad Communications Co.
4766 1925 11104 676 Korea Telecom (KIX)
1785 1880 680 127 PaeTec Communications, Inc.
10620 1761 325 169 Types of queries are: POCs, o
28573 1668 1089 55 Types of queries are: POCs, o
8402 1658 544 16 Corbina telecom
17974 1652 503 36 PT Telekomunikasi Indonesia
7545 1644 303 88 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 3413 3214 BellSouth.net Inc.
18566 2091 1914 Covad Communications Co.
1785 1880 1753 PaeTec Communications, Inc.
8402 1658 1642 Corbina telecom
17974 1652 1616 PT Telekomunikasi Indonesia
28573 1668 1613 Types of queries are: POCs, o
10620 1761 1592 Types of queries are: POCs, o
7545 1644 1556 TPG Internet Pty Ltd
22773 1541 1431 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 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 /12:236
/13:458 /14:815 /15:1474 /16:12127 /17:6207 /18:10356
/19:20475 /20:28351 /21:28957 /22:39476 /23:36828 /24:206793
/25:11 /26:21 /27:20 /28:154 /29:138 /30:66
/31:0 /32:143
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3089 3451 Windstream Communications Inc
6389 2103 3413 BellSouth.net Inc.
18566 2040 2091 Covad Communications Co.
10620 1658 1761 Types of queries are: POCs, o
8402 1636 1658 Corbina telecom
30036 1363 1414 Mediacom Communications Corp
11492 1124 1161 CABLE ONE, INC.
1785 1064 1880 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 2:673 4:14 6:3 8:392 12:1969
13:1 14:600 15:12 16:3 17:7 20:8
23:140 24:1739 27:1209 31:976 32:57 33:2
34:2 36:9 37:225 38:774 40:117 41:2991
42:121 44:3 46:1387 47:3 49:332 50:513
52:13 54:5 55:10 56:3 57:36 58:914
59:486 60:280 61:1077 62:976 63:2007 64:4092
65:2277 66:4456 67:2031 68:1163 69:3169 70:909
71:409 72:1791 74:2646 75:470 76:321 77:969
78:952 79:475 80:1215 81:886 82:642 83:539
84:589 85:1166 86:732 87:915 88:334 89:1563
90:285 91:4544 92:515 93:1377 94:1371 95:1094
96:416 97:315 98:822 99:38 100:5 101:145
103:858 106:63 107:167 108:205 109:1529 110:729
111:858 112:419 113:530 114:604 115:780 116:858
117:702 118:905 119:1247 120:370 121:655 122:1580
123:1076 124:1303 125:1335 128:495 129:182 130:258
131:588 132:156 133:21 134:225 135:62 136:210
137:182 138:271 139:144 140:463 141:265 142:374
143:408 144:507 145:69 146:481 147:243 148:705
149:299 150:155 151:198 152:446 153:171 154:6
155:444 156:210 157:336 158:162 159:445 160:323
161:227 162:341 163:177 164:526 165:394 166:562
167:461 168:807 169:147 170:839 171:119 172:4
173:1707 174:605 175:420 176:524 177:538 178:1281
180:1184 181:66 182:753 183:281 184:440 185:1
186:2096 187:841 188:1051 189:1204 190:5458 192:5951
193:5569 194:4360 195:3399 196:1262 197:169 198:3586
199:4398 200:5627 201:1739 202:8172 203:8585 204:4277
205:2429 206:2660 207:2730 208:4041 209:3544 210:2688
211:1452 212:1990 213:1878 214:842 215:101 216:5011
217:1517 218:532 219:329 220:1223 221:548 222:296
223:309
End of report