Routing Table Report 08:00 +10GMT Wed 28 Sep, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 368403
Prefixes after maximum aggregation: 166486
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 180509
Total ASes present in the Internet Routing Table: 37313
Prefixes per ASN: 9.87
Origin-only ASes present in the Internet Routing Table: 32201
Origin ASes announcing only one prefix: 15493
Transit ASes present in the Internet Routing Table: 5112
Transit-only ASes present in the Internet Routing Table: 128
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 31
Max AS path prepend of ASN (51310) 23
Prefixes from unregistered ASNs in the Routing Table: 2703
Unregistered ASNs in the Routing Table: 867
Number of 32-bit ASNs allocated by the RIRs: 1774
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3302
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 94
Number of addresses announced to Internet: 2498490112
Equivalent to 148 /8s, 235 /16s and 239 /24s
Percentage of available address space announced: 67.4
Percentage of allocated address space announced: 67.4
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.4
Total number of prefixes smaller than registry allocations: 152734
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89029
Total APNIC prefixes after maximum aggregation: 29431
APNIC Deaggregation factor: 3.03
Prefixes being announced from the APNIC address blocks: 86488
Unique aggregates announced from the APNIC address blocks: 38129
APNIC Region origin ASes present in the Internet Routing Table: 4524
APNIC Prefixes per ASN: 19.12
APNIC Region origin ASes announcing only one prefix: 1268
APNIC Region transit ASes present in the Internet Routing Table: 683
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: 627619584
Equivalent to 37 /8s, 104 /16s and 183 /24s
Percentage of available APNIC address space announced: 79.6
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: 142560
Total ARIN prefixes after maximum aggregation: 73379
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 114987
Unique aggregates announced from the ARIN address blocks: 43329
ARIN Region origin ASes present in the Internet Routing Table: 14616
ARIN Prefixes per ASN: 7.87
ARIN Region origin ASes announcing only one prefix: 5643
ARIN Region transit ASes present in the Internet Routing Table: 1489
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: 806119424
Equivalent to 48 /8s, 12 /16s and 104 /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: 89995
Total RIPE prefixes after maximum aggregation: 50266
RIPE Deaggregation factor: 1.79
Prefixes being announced from the RIPE address blocks: 82695
Unique aggregates announced from the RIPE address blocks: 54061
RIPE Region origin ASes present in the Internet Routing Table: 15993
RIPE Prefixes per ASN: 5.17
RIPE Region origin ASes announcing only one prefix: 7978
RIPE Region transit ASes present in the Internet Routing Table: 2505
Average RIPE Region AS path length visible: 3.4
Max RIPE Region AS path length visible: 31
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 489826816
Equivalent to 29 /8s, 50 /16s and 42 /24s
Percentage of available RIPE address space announced: 78.9
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: 34348
Total LACNIC prefixes after maximum aggregation: 7730
LACNIC Deaggregation factor: 4.44
Prefixes being announced from the LACNIC address blocks: 33804
Unique aggregates announced from the LACNIC address blocks: 17997
LACNIC Region origin ASes present in the Internet Routing Table: 1515
LACNIC Prefixes per ASN: 22.31
LACNIC Region origin ASes announcing only one prefix: 450
LACNIC Region transit ASes present in the Internet Routing Table: 266
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 89092352
Equivalent to 5 /8s, 79 /16s and 113 /24s
Percentage of available LACNIC address space announced: 59.0
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: 8463
Total AfriNIC prefixes after maximum aggregation: 2011
AfriNIC Deaggregation factor: 4.21
Prefixes being announced from the AfriNIC address blocks: 6563
Unique aggregates announced from the AfriNIC address blocks: 1995
AfriNIC Region origin ASes present in the Internet Routing Table: 488
AfriNIC Prefixes per ASN: 13.45
AfriNIC Region origin ASes announcing only one prefix: 154
AfriNIC Region transit ASes present in the Internet Routing Table: 105
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: 27352320
Equivalent to 1 /8s, 161 /16s and 93 /24s
Percentage of available AfriNIC address space announced: 40.8
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 1938 11040 649 Korea Telecom (KIX)
17974 1702 519 33 PT Telekomunikasi Indonesia
7545 1604 303 86 TPG Internet Pty Ltd
4755 1540 638 175 TATA Communications formerly
24560 1181 337 193 Bharti Airtel Ltd., Telemedia
9829 1159 989 28 National Internet Backbone
9583 1086 80 502 Sify Limited
7552 988 1062 11 Vietel Corporation
4808 958 2003 270 CNCGROUP IP network China169
18101 953 118 142 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 3562 3817 227 BellSouth.net Inc.
18566 1913 365 237 Covad Communications Co.
1785 1831 680 123 PaeTec Communications, Inc.
7029 1750 1033 206 Windstream Communications Inc
4323 1624 1098 392 tw telecom holdings, inc.
20115 1595 1543 636 Charter Communications
22773 1458 2907 99 Cox Communications Inc.
30036 1412 262 673 Mediacom Communications Corp
19262 1394 4728 400 Verizon Online LLC
7018 1351 7084 881 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 1055 352 13 Corbina telecom
34984 573 108 177 BILISIM TELEKOM
9116 540 326 31 Goldenlines main autonomous s
6830 532 1813 325 UPC Broadband
20940 531 178 409 Akamai Technologies European
3320 501 8169 383 Deutsche Telekom AG
3292 479 2082 409 TDC Data Networks
12479 474 594 8 France Telecom Espana SA
8866 460 133 26 Bulgarian Telecommunication C
29049 424 31 55 AzerSat LLC.
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 1681 310 155 Types of queries are: POCs, o
28573 1355 1013 70 Types of queries are: POCs, o
8151 1279 2786 346 Uninet S.A. de C.V.
7303 1163 682 174 Telecom Argentina S.A.
14420 736 58 88 CORPORACION NACIONAL DE TELEC
22047 580 322 17 Types of queries are: POCs, o
6503 563 450 69 Axtel, S.A.B. de C.V.
27947 562 56 77 Telconet S.A
3816 537 232 99 Types of queries are: POCs, o
11172 518 102 94 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 808 147 41 LINKdotNET AS number
8452 711 445 11 TEDATA
15475 450 74 8 Nile Online
36992 292 415 14 Etisalat MISR
3741 274 938 229 The Internet Solution
15706 244 32 6 Sudatel Internet Exchange Aut
6713 242 519 14 Itissalat Al-MAGHRIB
33776 239 13 8 Starcomms Nigeria Limited
12258 199 28 59 Vodacom Internet Company
29571 192 17 11 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 3562 3817 227 BellSouth.net Inc.
23456 3302 785 1791 32-bit ASN transition
4766 1938 11040 649 Korea Telecom (KIX)
18566 1913 365 237 Covad Communications Co.
1785 1831 680 123 PaeTec Communications, Inc.
7029 1750 1033 206 Windstream Communications Inc
17974 1702 519 33 PT Telekomunikasi Indonesia
10620 1681 310 155 Types of queries are: POCs, o
4323 1624 1098 392 tw telecom holdings, inc.
7545 1604 303 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
1785 1831 1708 PaeTec Communications, Inc.
18566 1913 1676 Covad Communications Co.
17974 1702 1669 PT Telekomunikasi Indonesia
7029 1750 1544 Windstream Communications Inc
10620 1681 1526 Types of queries are: POCs, o
7545 1604 1518 TPG Internet Pty Ltd
23456 3302 1511 32-bit ASN transition
4755 1540 1365 TATA Communications formerly
22773 1458 1359 Cox Communications Inc.
4766 1938 1289 Korea Telecom (KIX)
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.
26973 UNALLOCATED 12.39.152.0/24 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
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 65535 Internet Assigned Numbers Aut
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 36938 >>UNKNOWN<<
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 /8:22 /9:12 /10:27 /11:81 /12:236
/13:464 /14:798 /15:1418 /16:11958 /17:5962 /18:9985
/19:19926 /20:26952 /21:27022 /22:36330 /23:34523 /24:192165
/25:12 /26:20 /27:23 /28:156 /29:121 /30:58
/31:0 /32:132
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2197 3562 BellSouth.net Inc.
18566 1869 1913 Covad Communications Co.
10620 1576 1681 Types of queries are: POCs, o
23456 1572 3302 32-bit ASN transition
7029 1430 1750 Windstream Communications Inc
30036 1369 1412 Mediacom Communications Corp
11492 1113 1150 CABLE ONE, INC.
7011 1060 1185 Frontier Communications of Am
1785 1053 1831 PaeTec Communications, Inc.
8402 1002 1055 Corbina telecom
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:382 2:316 4:15 5:1 6:3 8:350
12:1960 13:1 14:523 15:13 16:3 17:7
20:9 23:35 24:1682 27:936 31:553 32:59
33:4 34:2 36:4 38:740 40:108 41:2593
42:49 44:3 46:986 47:3 49:262 50:426
52:13 54:2 55:3 56:2 57:36 58:830
59:490 60:361 61:1015 62:1092 63:1932 64:4021
65:2300 66:3955 67:1941 68:1111 69:3187 70:812
71:377 72:1853 74:2454 75:348 76:340 77:872
78:811 79:491 80:1126 81:850 82:507 83:555
84:621 85:1088 86:415 87:881 88:353 89:1598
90:268 91:4134 92:534 93:1304 94:1290 95:901
96:430 97:276 98:908 99:37 101:83 103:324
106:70 107:53 108:76 109:1033 110:636 111:785
112:315 113:426 114:558 115:668 116:866 117:678
118:858 119:1195 120:333 121:666 122:1601 123:1004
124:1300 125:1333 128:206 129:172 130:159 131:580
132:107 133:21 134:206 135:54 136:211 137:135
138:288 139:118 140:473 141:289 142:370 143:410
144:485 145:59 146:466 147:215 148:619 149:260
150:146 151:193 152:444 153:177 154:5 155:388
156:204 157:330 158:146 159:394 160:321 161:195
162:337 163:167 164:507 165:371 166:536 167:432
168:741 169:145 170:864 171:83 172:1 173:1642
174:646 175:401 176:215 177:285 178:1026 180:1074
181:37 182:615 183:219 184:367 185:1 186:1465
187:671 188:924 189:844 190:5147 192:5868 193:5017
194:3526 195:3072 196:1231 197:176 198:3544 199:4087
200:5444 201:1630 202:8263 203:8358 204:4188 205:2320
206:2589 207:2751 208:4029 209:3430 210:2633 211:1458
212:2102 213:1774 214:778 215:75 216:4869 217:1611
218:552 219:333 220:1189 221:493 222:294 223:258
End of report
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