Routing Table Report 08:00 +10GMT Mon 09 Apr, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 397868
Prefixes after maximum aggregation: 169943
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 196239
Total ASes present in the Internet Routing Table: 38290
Prefixes per ASN: 10.39
Origin-only ASes present in the Internet Routing Table: 33015
Origin ASes announcing only one prefix: 15482
Transit ASes present in the Internet Routing Table: 5275
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: 1481
Unregistered ASNs in the Routing Table: 388
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: 5339
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 1420
Number of addresses announced to Internet: 2551222784
Equivalent to 152 /8s, 16 /16s and 146 /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: 167707
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93339
Total APNIC prefixes after maximum aggregation: 30806
APNIC Deaggregation factor: 3.03
Prefixes being announced from the APNIC address blocks: 90738
Unique aggregates announced from the APNIC address blocks: 39414
APNIC Region origin ASes present in the Internet Routing Table: 4631
APNIC Prefixes per ASN: 19.59
APNIC Region origin ASes announcing only one prefix: 1263
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: 16
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 642799104
Equivalent to 38 /8s, 80 /16s and 86 /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: 148146
Total ARIN prefixes after maximum aggregation: 75358
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 119722
Unique aggregates announced from the ARIN address blocks: 49968
ARIN Region origin ASes present in the Internet Routing Table: 14884
ARIN Prefixes per ASN: 8.04
ARIN Region origin ASes announcing only one prefix: 5672
ARIN Region transit ASes present in the Internet Routing Table: 1505
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: 805826560
Equivalent to 48 /8s, 7 /16s and 240 /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: 101337
Total RIPE prefixes after maximum aggregation: 53275
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 92599
Unique aggregates announced from the RIPE address blocks: 57213
RIPE Region origin ASes present in the Internet Routing Table: 16348
RIPE Prefixes per ASN: 5.66
RIPE Region origin ASes announcing only one prefix: 7953
RIPE Region transit ASes present in the Internet Routing Table: 2596
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: 502389248
Equivalent to 29 /8s, 241 /16s and 218 /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: 39695
Total LACNIC prefixes after maximum aggregation: 8103
LACNIC Deaggregation factor: 4.90
Prefixes being announced from the LACNIC address blocks: 39435
Unique aggregates announced from the LACNIC address blocks: 19799
LACNIC Region origin ASes present in the Internet Routing Table: 1562
LACNIC Prefixes per ASN: 25.25
LACNIC Region origin ASes announcing only one prefix: 434
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: 98687488
Equivalent to 5 /8s, 225 /16s and 218 /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: 8916
Total AfriNIC prefixes after maximum aggregation: 2111
AfriNIC Deaggregation factor: 4.22
Prefixes being announced from the AfriNIC address blocks: 6992
Unique aggregates announced from the AfriNIC address blocks: 2150
AfriNIC Region origin ASes present in the Internet Routing Table: 521
AfriNIC Prefixes per ASN: 13.42
AfriNIC Region origin ASes announcing only one prefix: 160
AfriNIC Region transit ASes present in the Internet Routing Table: 114
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: 31522816
Equivalent to 1 /8s, 225 /16s and 0 /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 1912 11107 684 Korea Telecom (KIX)
17974 1701 503 63 PT Telekomunikasi Indonesia
7545 1651 301 85 TPG Internet Pty Ltd
4755 1555 385 156 TATA Communications formerly
9583 1242 94 539 Sify Limited
9829 1235 1041 30 National Internet Backbone
7552 1106 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 3418 1016 169 Windstream Communications Inc
18566 2093 383 179 Covad Communications Co.
1785 1895 680 128 PaeTec Communications, Inc.
20115 1637 1561 617 Charter Communications
4323 1594 1059 380 tw telecom holdings, inc.
22773 1568 2910 111 Cox Communications Inc.
30036 1461 265 742 Mediacom Communications Corp
7018 1287 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 1706 544 16 Corbina telecom
2118 1394 97 14 EUnet/RELCOM Autonomous Syste
31148 679 37 9 FreeNet ISP
34984 676 188 173 BILISIM TELEKOM
12479 652 658 57 France Telecom Espana SA
6830 640 1943 411 UPC Broadband
20940 634 205 499 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
3320 533 8442 399 Deutsche Telekom AG
8551 506 360 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 1763 1105 61 Types of queries are: POCs, o
6503 1517 418 66 Axtel, S.A.B. de C.V.
7303 1352 826 188 Telecom Argentina S.A.
8151 1345 2979 347 Uninet S.A. de C.V.
26615 879 697 32 Tim Celular S.A.
27947 662 74 99 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 1311 958 13 TEDATA
24863 845 274 32 LINKdotNET AS number
6713 491 649 18 Itissalat Al-MAGHRIB
3741 266 921 224 The Internet Solution
33776 208 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 162 666 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 3418 1016 169 Windstream Communications Inc
18566 2093 383 179 Covad Communications Co.
4766 1912 11107 684 Korea Telecom (KIX)
1785 1895 680 128 PaeTec Communications, Inc.
10620 1795 327 163 Types of queries are: POCs, o
28573 1763 1105 61 Types of queries are: POCs, o
8402 1706 544 16 Corbina telecom
17974 1701 503 63 PT Telekomunikasi Indonesia
7545 1651 301 85 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 3418 3249 Windstream Communications Inc
18566 2093 1914 Covad Communications Co.
1785 1895 1767 PaeTec Communications, Inc.
28573 1763 1702 Types of queries are: POCs, o
8402 1706 1690 Corbina telecom
17974 1701 1638 PT Telekomunikasi Indonesia
10620 1795 1632 Types of queries are: POCs, o
7545 1651 1566 TPG Internet Pty Ltd
22773 1568 1457 Cox Communications Inc.
6503 1517 1451 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
54601 UNALLOCATED 8.14.101.0/24 6461 AboveNet Communicati
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.
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 /14:828 /15:1476 /16:12131 /17:6254 /18:10415
/19:20599 /20:28642 /21:29460 /22:39917 /23:37258 /24:209504
/25:11 /26:21 /27:20 /28:153 /29:141 /30:69
/31:0 /32:133
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3060 3418 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 1683 1706 Corbina telecom
30036 1401 1461 Mediacom Communications Corp
6503 1277 1517 Axtel, S.A.B. de C.V.
11492 1148 1185 CABLE ONE, INC.
8452 1120 1311 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 2:706 4:14 6:3 8:396 12:1997
13:1 14:593 15:12 16:3 17:7 20:8
23:158 24:1763 27:1262 31:991 32:53 33:2
34:2 36:8 37:318 38:783 40:120 41:3119
42:131 44:3 46:1465 47:3 49:347 50:537
52:12 54:7 55:8 56:3 57:28 58:915
59:486 60:276 61:1085 62:969 63:1993 64:4139
65:2259 66:4482 67:2019 68:1148 69:3168 70:907
71:468 72:1831 74:2600 75:494 76:314 77:962
78:1000 79:494 80:1210 81:900 82:668 83:546
84:491 85:1188 86:412 87:911 88:350 89:1637
90:297 91:4678 92:520 93:1390 94:1478 95:1136
96:374 97:318 98:889 99:37 100:6 101:161
103:931 106:73 107:181 108:201 109:1292 110:737
111:901 112:436 113:575 114:615 115:791 116:885
117:702 118:904 119:1178 120:340 121:672 122:1628
123:1101 124:1305 125:1252 128:515 129:186 130:251
131:591 132:165 133:21 134:233 135:62 136:211
137:173 138:354 139:144 140:468 141:243 142:368
143:393 144:508 145:64 146:481 147:272 148:746
149:298 150:150 151:176 152:460 153:172 154:6
155:445 156:213 157:335 158:175 159:450 160:341
161:232 162:347 163:179 164:567 165:389 166:561
167:464 168:814 169:126 170:845 171:127 172:4
173:1736 174:580 175:417 176:460 177:646 178:1319
180:1172 181:73 182:764 183:285 184:449 185:1
186:2151 187:1025 188:1183 189:1781 190:5449 192:5953
193:5612 194:4593 195:3597 196:1266 197:127 198:3574
199:4436 200:5696 201:1898 202:8230 203:8490 204:4261
205:2458 206:2655 207:2713 208:4044 209:3567 210:2667
211:1451 212:2006 213:1905 214:881 215:107 216:5061
217:1527 218:527 219:319 220:1223 221:536 222:293
223:316
End of report
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