Routing Table Report 08:00 +10GMT Tue 08 Nov, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 374961
Prefixes after maximum aggregation: 164739
Deaggregation factor: 2.28
Unique aggregates announced to Internet: 187244
Total ASes present in the Internet Routing Table: 37491
Prefixes per ASN: 10.00
Origin-only ASes present in the Internet Routing Table: 32342
Origin ASes announcing only one prefix: 15477
Transit ASes present in the Internet Routing Table: 5149
Transit-only ASes present in the Internet Routing Table: 128
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: 2361
Unregistered ASNs in the Routing Table: 928
Number of 32-bit ASNs allocated by the RIRs: 1933
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3687
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 84
Number of addresses announced to Internet: 2507465216
Equivalent to 149 /8s, 116 /16s and 226 /24s
Percentage of available address space announced: 67.7
Percentage of allocated address space announced: 67.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.6
Total number of prefixes smaller than registry allocations: 156729
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89889
Total APNIC prefixes after maximum aggregation: 29776
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 87290
Unique aggregates announced from the APNIC address blocks: 38335
APNIC Region origin ASes present in the Internet Routing Table: 4554
APNIC Prefixes per ASN: 19.17
APNIC Region origin ASes announcing only one prefix: 1285
APNIC Region transit ASes present in the Internet Routing Table: 694
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 629326080
Equivalent to 37 /8s, 130 /16s and 193 /24s
Percentage of available APNIC address space announced: 79.8
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: 144663
Total ARIN prefixes after maximum aggregation: 74034
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 116879
Unique aggregates announced from the ARIN address blocks: 48493
ARIN Region origin ASes present in the Internet Routing Table: 14669
ARIN Prefixes per ASN: 7.97
ARIN Region origin ASes announcing only one prefix: 5629
ARIN Region transit ASes present in the Internet Routing Table: 1491
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 804748288
Equivalent to 47 /8s, 247 /16s and 124 /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: 92082
Total RIPE prefixes after maximum aggregation: 51000
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 84542
Unique aggregates announced from the RIPE address blocks: 54481
RIPE Region origin ASes present in the Internet Routing Table: 16078
RIPE Prefixes per ASN: 5.26
RIPE Region origin ASes announcing only one prefix: 7967
RIPE Region transit ASes present in the Internet Routing Table: 2517
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: 491657472
Equivalent to 29 /8s, 78 /16s and 25 /24s
Percentage of available RIPE address space announced: 79.2
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: 35388
Total LACNIC prefixes after maximum aggregation: 7835
LACNIC Deaggregation factor: 4.52
Prefixes being announced from the LACNIC address blocks: 34971
Unique aggregates announced from the LACNIC address blocks: 18525
LACNIC Region origin ASes present in the Internet Routing Table: 1526
LACNIC Prefixes per ASN: 22.92
LACNIC Region origin ASes announcing only one prefix: 444
LACNIC Region transit ASes present in the Internet Routing Table: 269
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 92831232
Equivalent to 5 /8s, 136 /16s and 126 /24s
Percentage of available LACNIC address space announced: 61.5
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: 8552
Total AfriNIC prefixes after maximum aggregation: 2017
AfriNIC Deaggregation factor: 4.24
Prefixes being announced from the AfriNIC address blocks: 6658
Unique aggregates announced from the AfriNIC address blocks: 1993
AfriNIC Region origin ASes present in the Internet Routing Table: 491
AfriNIC Prefixes per ASN: 13.56
AfriNIC Region origin ASes announcing only one prefix: 152
AfriNIC Region transit ASes present in the Internet Routing Table: 108
Average AfriNIC Region AS path length visible: 3.3
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: 27597568
Equivalent to 1 /8s, 165 /16s and 27 /24s
Percentage of available AfriNIC address space announced: 41.1
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 1950 11121 665 Korea Telecom (KIX)
7545 1613 303 87 TPG Internet Pty Ltd
17974 1604 511 36 PT Telekomunikasi Indonesia
4755 1534 378 175 TATA Communications formerly
9829 1160 989 28 National Internet Backbone
9583 1093 80 501 Sify Limited
7552 987 1062 11 Vietel Corporation
4808 973 2009 278 CNCGROUP IP network China169
24560 964 343 218 Bharti Airtel Ltd., Telemedia
18101 954 135 150 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 3548 3815 222 BellSouth.net Inc.
7029 2373 1042 211 Windstream Communications Inc
18566 2094 382 176 Covad Communications Co.
1785 1847 680 122 PaeTec Communications, Inc.
4323 1621 1093 388 tw telecom holdings, inc.
20115 1595 1547 621 Charter Communications
22773 1488 2909 103 Cox Communications Inc.
30036 1405 254 668 Mediacom Communications Corp
19262 1395 4728 400 Verizon Online LLC
7018 1321 7063 869 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 1573 416 14 Corbina telecom
6830 647 1927 412 UPC Broadband
34984 595 110 183 BILISIM TELEKOM
20940 551 182 433 Akamai Technologies European
12479 547 628 51 France Telecom Espana SA
9116 541 326 31 Goldenlines main autonomous s
3320 506 8168 390 Deutsche Telekom AG
3292 483 2074 408 TDC Data Networks
8866 462 133 26 Bulgarian Telecommunication C
31148 406 22 114 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 1699 314 156 Types of queries are: POCs, o
28573 1475 1043 79 Types of queries are: POCs, o
8151 1290 2918 341 Uninet S.A. de C.V.
7303 1236 751 171 Telecom Argentina S.A.
22047 580 322 17 Types of queries are: POCs, o
27947 580 72 85 Telconet S.A
6503 555 434 69 Axtel, S.A.B. de C.V.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 540 233 95 Types of queries are: POCs, o
11172 524 102 97 Alestra, S. de R.L. 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
24863 797 146 33 LINKdotNET AS number
8452 658 446 12 TEDATA
15475 455 74 8 Nile Online
36992 284 415 20 Etisalat MISR
3741 281 939 230 The Internet Solution
15706 240 32 6 Sudatel Internet Exchange Aut
33776 239 13 8 Starcomms Nigeria Limited
6713 235 519 14 Itissalat Al-MAGHRIB
29571 218 17 13 Ci Telecom Autonomous system
12258 197 28 58 Vodacom Internet Company
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 3548 3815 222 BellSouth.net Inc.
7029 2373 1042 211 Windstream Communications Inc
18566 2094 382 176 Covad Communications Co.
4766 1950 11121 665 Korea Telecom (KIX)
1785 1847 680 122 PaeTec Communications, Inc.
10620 1699 314 156 Types of queries are: POCs, o
4323 1621 1093 388 tw telecom holdings, inc.
7545 1613 303 87 TPG Internet Pty Ltd
17974 1604 511 36 PT Telekomunikasi Indonesia
20115 1595 1547 621 Charter Communications
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 2373 2162 Windstream Communications Inc
18566 2094 1918 Covad Communications Co.
1785 1847 1725 PaeTec Communications, Inc.
17974 1604 1568 PT Telekomunikasi Indonesia
8402 1573 1559 Corbina telecom
10620 1699 1543 Types of queries are: POCs, o
7545 1613 1526 TPG Internet Pty Ltd
28573 1475 1396 Types of queries are: POCs, o
22773 1488 1385 Cox Communications Inc.
4755 1534 1359 TATA Communications formerly
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
128.0.0.0/16 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
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
41.222.79.0/24 37345 MEDALLION Communications
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV
62.61.221.0/24 24974 Tachyon Europe BV
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 /10:27 /11:81 /12:237
/13:465 /14:807 /15:1417 /16:11983 /17:6041 /18:10026
/19:20053 /20:27525 /21:27621 /22:36887 /23:34919 /24:196302
/25:12 /26:21 /27:22 /28:158 /29:126 /30:63
/31:0 /32:136
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2187 3548 BellSouth.net Inc.
18566 2044 2094 Covad Communications Co.
7029 2025 2373 Windstream Communications Inc
10620 1594 1699 Types of queries are: POCs, o
8402 1548 1573 Corbina telecom
30036 1365 1405 Mediacom Communications Corp
11492 1117 1154 CABLE ONE, INC.
1785 1057 1847 PaeTec Communications, Inc.
7011 1051 1169 Frontier Communications of Am
22773 950 1488 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:409 2:488 4:15 5:1 6:3 8:356
12:1955 13:1 14:530 15:11 16:3 17:7
20:9 23:58 24:1678 27:1023 31:663 32:60
33:2 34:2 36:4 38:752 40:110 41:2717
42:59 44:3 46:1025 47:3 49:295 50:440
52:13 55:7 56:2 57:43 58:866 59:491
60:358 61:1025 62:1090 63:1958 64:4013 65:2297
66:4248 67:1999 68:1163 69:3181 70:879 71:385
72:1804 74:2603 75:388 76:316 77:879 78:880
79:468 80:1126 81:830 82:520 83:528 84:620
85:1151 86:407 87:932 88:357 89:1596 90:237
91:4249 92:534 93:1550 94:1293 95:1126 96:422
97:286 98:938 99:37 101:107 103:438 106:8
107:86 108:72 109:1167 110:639 111:795 112:351
113:463 114:608 115:684 116:862 117:696 118:870
119:1222 120:343 121:676 122:1565 123:1011 124:1294
125:1302 128:212 129:180 130:158 131:623 132:141
133:21 134:213 135:54 136:210 137:139 138:286
139:120 140:465 141:315 142:370 143:408 144:487
145:64 146:460 147:221 148:617 149:271 150:158
151:194 152:445 153:178 154:6 155:383 156:205
157:329 158:155 159:418 160:330 161:205 162:367
163:164 164:507 165:367 166:540 167:441 168:809
169:144 170:880 171:87 172:4 173:1711 174:677
175:404 176:317 177:372 178:1071 180:1138 181:38
182:640 183:218 184:389 185:1 186:1329 187:773
188:1012 189:1147 190:5123 192:5884 193:5044 194:3549
195:3112 196:1229 197:171 198:3573 199:4174 200:5436
201:1697 202:8254 203:8400 204:4242 205:2355 206:2585
207:2752 208:4023 209:3552 210:2642 211:1448 212:2098
213:1780 214:804 215:94 216:4892 217:1596 218:556
219:337 220:1214 221:501 222:296 223:265
End of report
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