Routing Table Report 08:00 +10GMT Fri 06 Apr, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 397584
Prefixes after maximum aggregation: 169802
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 196021
Total ASes present in the Internet Routing Table: 38276
Prefixes per ASN: 10.39
Origin-only ASes present in the Internet Routing Table: 32999
Origin ASes announcing only one prefix: 15497
Transit ASes present in the Internet Routing Table: 5277
Transit-only ASes present in the Internet Routing Table: 123
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: 1458
Unregistered ASNs in the Routing Table: 381
Number of 32-bit ASNs allocated by the RIRs: 2347
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 5346
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 1389
Number of addresses announced to Internet: 2551538176
Equivalent to 152 /8s, 21 /16s and 98 /24s
Percentage of available address space announced: 68.8
Percentage of allocated address space announced: 68.8
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: 167561
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93223
Total APNIC prefixes after maximum aggregation: 30755
APNIC Deaggregation factor: 3.03
Prefixes being announced from the APNIC address blocks: 90625
Unique aggregates announced from the APNIC address blocks: 39315
APNIC Region origin ASes present in the Internet Routing Table: 4630
APNIC Prefixes per ASN: 19.57
APNIC Region origin ASes announcing only one prefix: 1262
APNIC Region transit ASes present in the Internet Routing Table: 702
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: 642729472
Equivalent to 38 /8s, 79 /16s and 70 /24s
Percentage of available APNIC address space announced: 81.5
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: 148140
Total ARIN prefixes after maximum aggregation: 75342
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 119744
Unique aggregates announced from the ARIN address blocks: 49959
ARIN Region origin ASes present in the Internet Routing Table: 14888
ARIN Prefixes per ASN: 8.04
ARIN Region origin ASes announcing only one prefix: 5680
ARIN Region transit ASes present in the Internet Routing Table: 1509
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: 805797888
Equivalent to 48 /8s, 7 /16s and 128 /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: 101179
Total RIPE prefixes after maximum aggregation: 53229
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 92427
Unique aggregates announced from the RIPE address blocks: 57151
RIPE Region origin ASes present in the Internet Routing Table: 16343
RIPE Prefixes per ASN: 5.66
RIPE Region origin ASes announcing only one prefix: 7958
RIPE Region transit ASes present in the Internet Routing Table: 2592
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: 502229248
Equivalent to 29 /8s, 239 /16s and 105 /24s
Percentage of available RIPE address space announced: 80.9
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: 39756
Total LACNIC prefixes after maximum aggregation: 8098
LACNIC Deaggregation factor: 4.91
Prefixes being announced from the LACNIC address blocks: 39506
Unique aggregates announced from the LACNIC address blocks: 19791
LACNIC Region origin ASes present in the Internet Routing Table: 1561
LACNIC Prefixes per ASN: 25.31
LACNIC Region origin ASes announcing only one prefix: 435
LACNIC Region transit ASes present in the Internet Routing Table: 285
Average LACNIC Region AS path length visible: 3.9
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: 98713600
Equivalent to 5 /8s, 226 /16s and 64 /24s
Percentage of available LACNIC address space announced: 65.4
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: 8865
Total AfriNIC prefixes after maximum aggregation: 2104
AfriNIC Deaggregation factor: 4.21
Prefixes being announced from the AfriNIC address blocks: 6938
Unique aggregates announced from the AfriNIC address blocks: 2163
AfriNIC Region origin ASes present in the Internet Routing Table: 523
AfriNIC Prefixes per ASN: 13.27
AfriNIC Region origin ASes announcing only one prefix: 162
AfriNIC Region transit ASes present in the Internet Routing Table: 115
Average AfriNIC Region AS path length visible: 3.5
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: 31526912
Equivalent to 1 /8s, 225 /16s and 16 /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 1913 11107 684 Korea Telecom (KIX)
17974 1667 503 63 PT Telekomunikasi Indonesia
7545 1652 301 86 TPG Internet Pty Ltd
4755 1556 385 156 TATA Communications formerly
9829 1235 1041 30 National Internet Backbone
9583 1234 94 539 Sify Limited
7552 1101 1062 11 Vietel Corporation
24560 1019 385 167 Bharti Airtel Ltd., Telemedia
4808 989 1947 284 CNCGROUP IP network China169
18101 948 131 159 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
6389 3433 3807 197 BellSouth.net Inc.
7029 3416 1016 169 Windstream Communications Inc
18566 2093 383 179 Covad Communications Co.
1785 1895 680 128 PaeTec Communications, Inc.
20115 1636 1561 616 Charter Communications
4323 1595 1075 381 tw telecom holdings, inc.
22773 1567 2910 111 Cox Communications Inc.
30036 1457 264 741 Mediacom Communications Corp
7018 1286 9807 836 AT&T Services, Inc.
11492 1185 216 365 CABLE ONE, 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 544 16 Corbina telecom
2118 1394 97 14 EUnet/RELCOM Autonomous Syste
31148 679 37 9 FreeNet ISP
34984 675 188 172 BILISIM TELEKOM
12479 652 658 57 France Telecom Espana SA
6830 641 1943 412 UPC Broadband
20940 635 205 499 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
3320 533 8442 399 Deutsche Telekom AG
8551 505 360 81 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 1795 327 163 Types of queries are: POCs, o
28573 1768 1105 61 Types of queries are: POCs, o
6503 1521 418 65 Axtel, S.A.B. de C.V.
7303 1353 827 189 Telecom Argentina S.A.
8151 1345 2979 347 Uninet S.A. de C.V.
26615 904 701 29 Tim Celular S.A.
27947 664 74 101 Telconet S.A
11172 638 107 74 Alestra, S. de R.L. de C.V.
22047 584 326 15 Types of queries are: POCs, o
3816 573 242 100 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 1306 958 13 TEDATA
24863 846 274 32 LINKdotNET AS number
6713 493 649 18 Itissalat Al-MAGHRIB
3741 266 921 224 The Internet Solution
33776 198 12 21 Starcomms Nigeria Limited
12258 197 28 62 Vodacom Internet Company
24835 178 80 8 RAYA Telecom - Egypt
15706 168 32 6 Sudatel Internet Exchange Aut
16637 161 666 85 MTN Network Solutions
29571 160 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
6389 3433 3807 197 BellSouth.net Inc.
7029 3416 1016 169 Windstream Communications Inc
18566 2093 383 179 Covad Communications Co.
4766 1913 11107 684 Korea Telecom (KIX)
1785 1895 680 128 PaeTec Communications, Inc.
10620 1795 327 163 Types of queries are: POCs, o
28573 1768 1105 61 Types of queries are: POCs, o
17974 1667 503 63 PT Telekomunikasi Indonesia
8402 1662 544 16 Corbina telecom
7545 1652 301 86 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
7029 3416 3247 Windstream Communications Inc
18566 2093 1914 Covad Communications Co.
1785 1895 1767 PaeTec Communications, Inc.
28573 1768 1707 Types of queries are: POCs, o
8402 1662 1646 Corbina telecom
10620 1795 1632 Types of queries are: POCs, o
17974 1667 1604 PT Telekomunikasi Indonesia
7545 1652 1566 TPG Internet Pty Ltd
22773 1567 1456 Cox Communications Inc.
6503 1521 1456 Axtel, S.A.B. de C.V.
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
54439 UNALLOCATED 8.25.174.0/24 3356 Level 3 Communicatio
54470 UNALLOCATED 8.30.171.0/24 3356 Level 3 Communicatio
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.
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
23.27.16.0/20 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
/13:459 /14:831 /15:1483 /16:12133 /17:6246 /18:10404
/19:20600 /20:28646 /21:29473 /22:39882 /23:37225 /24:209275
/25:11 /26:21 /27:20 /28:151 /29:142 /30:69
/31:0 /32:136
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3058 3416 Windstream Communications Inc
6389 2149 3433 BellSouth.net Inc.
18566 2042 2093 Covad Communications Co.
10620 1690 1795 Types of queries are: POCs, o
8402 1639 1662 Corbina telecom
30036 1397 1457 Mediacom Communications Corp
6503 1281 1521 Axtel, S.A.B. de C.V.
11492 1148 1185 CABLE ONE, INC.
8452 1115 1306 TEDATA
1785 1067 1895 PaeTec Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:530 2:670 4:14 6:3 8:396 12:1997
13:1 14:596 15:12 16:3 17:7 20:8
23:159 24:1763 27:1261 31:986 32:53 33:2
34:2 36:8 37:320 38:781 40:120 41:3104
42:129 44:3 46:1470 47:3 49:347 50:536
52:13 54:7 55:9 56:3 57:28 58:913
59:486 60:277 61:1091 62:972 63:1993 64:4145
65:2260 66:4487 67:2019 68:1150 69:3173 70:907
71:466 72:1833 74:2591 75:493 76:313 77:964
78:1003 79:493 80:1207 81:899 82:666 83:539
84:491 85:1184 86:411 87:911 88:351 89:1630
90:297 91:4680 92:519 93:1371 94:1476 95:1127
96:373 97:318 98:877 99:37 100:6 101:163
103:928 106:73 107:180 108:210 109:1268 110:740
111:905 112:434 113:570 114:620 115:788 116:886
117:702 118:902 119:1179 120:339 121:673 122:1628
123:1100 124:1282 125:1247 128:525 129:186 130:251
131:593 132:165 133:21 134:233 135:62 136:211
137:174 138:354 139:144 140:468 141:243 142:368
143:393 144:508 145:66 146:476 147:241 148:746
149:299 150:148 151:176 152:460 153:172 154:6
155:445 156:213 157:335 158:175 159:452 160:341
161:230 162:344 163:179 164:567 165:389 166:561
167:464 168:814 169:126 170:845 171:126 172:4
173:1733 174:573 175:418 176:461 177:639 178:1316
180:1170 181:73 182:762 183:284 184:451 185:1
186:2171 187:1027 188:1184 189:1789 190:5439 192:5949
193:5606 194:4590 195:3594 196:1266 197:125 198:3578
199:4443 200:5691 201:1900 202:8208 203:8455 204:4267
205:2452 206:2654 207:2720 208:4054 209:3560 210:2668
211:1450 212:2008 213:1902 214:886 215:107 216:5054
217:1522 218:527 219:319 220:1223 221:536 222:294
223:317
End of report
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