Routing Table Report 08:00 +10GMT Wed 09 Nov, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 375691
Prefixes after maximum aggregation: 164675
Deaggregation factor: 2.28
Unique aggregates announced to Internet: 187387
Total ASes present in the Internet Routing Table: 37513
Prefixes per ASN: 10.01
Origin-only ASes present in the Internet Routing Table: 32362
Origin ASes announcing only one prefix: 15487
Transit ASes present in the Internet Routing Table: 5151
Transit-only ASes present in the Internet Routing Table: 131
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: 2364
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: 3693
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 87
Number of addresses announced to Internet: 2507617024
Equivalent to 149 /8s, 119 /16s and 51 /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: 157243
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89988
Total APNIC prefixes after maximum aggregation: 29761
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 87384
Unique aggregates announced from the APNIC address blocks: 38339
APNIC Region origin ASes present in the Internet Routing Table: 4555
APNIC Prefixes per ASN: 19.18
APNIC Region origin ASes announcing only one prefix: 1283
APNIC Region transit ASes present in the Internet Routing Table: 695
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: 629315072
Equivalent to 37 /8s, 130 /16s and 150 /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: 144981
Total ARIN prefixes after maximum aggregation: 73966
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 117179
Unique aggregates announced from the ARIN address blocks: 48462
ARIN Region origin ASes present in the Internet Routing Table: 14672
ARIN Prefixes per ASN: 7.99
ARIN Region origin ASes announcing only one prefix: 5631
ARIN Region transit ASes present in the Internet Routing Table: 1496
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: 804732416
Equivalent to 47 /8s, 247 /16s and 62 /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: 92236
Total RIPE prefixes after maximum aggregation: 50996
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 84624
Unique aggregates announced from the RIPE address blocks: 54552
RIPE Region origin ASes present in the Internet Routing Table: 16084
RIPE Prefixes per ASN: 5.26
RIPE Region origin ASes announcing only one prefix: 7971
RIPE Region transit ASes present in the Internet Routing Table: 2515
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: 491671808
Equivalent to 29 /8s, 78 /16s and 81 /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: 35556
Total LACNIC prefixes after maximum aggregation: 7846
LACNIC Deaggregation factor: 4.53
Prefixes being announced from the LACNIC address blocks: 35128
Unique aggregates announced from the LACNIC address blocks: 18588
LACNIC Region origin ASes present in the Internet Routing Table: 1532
LACNIC Prefixes per ASN: 22.93
LACNIC Region origin ASes announcing only one prefix: 446
LACNIC Region transit ASes present in the Internet Routing Table: 267
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: 92921088
Equivalent to 5 /8s, 137 /16s and 221 /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: 8540
Total AfriNIC prefixes after maximum aggregation: 2029
AfriNIC Deaggregation factor: 4.21
Prefixes being announced from the AfriNIC address blocks: 6626
Unique aggregates announced from the AfriNIC address blocks: 1992
AfriNIC Region origin ASes present in the Internet Routing Table: 494
AfriNIC Prefixes per ASN: 13.41
AfriNIC Region origin ASes announcing only one prefix: 156
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: 27609088
Equivalent to 1 /8s, 165 /16s and 72 /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 1615 303 88 TPG Internet Pty Ltd
17974 1595 511 36 PT Telekomunikasi Indonesia
4755 1531 377 172 TATA Communications formerly
9829 1161 989 28 National Internet Backbone
9583 1095 81 495 Sify Limited
7552 987 1062 11 Vietel Corporation
4808 977 2009 279 CNCGROUP IP network China169
24560 964 343 218 Bharti Airtel Ltd., Telemedia
18101 955 135 150 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 3545 3815 222 BellSouth.net Inc.
7029 2923 1042 211 Windstream Communications Inc
18566 2094 382 176 Covad Communications Co.
1785 1848 680 122 PaeTec Communications, Inc.
4323 1621 1093 388 tw telecom holdings, inc.
20115 1595 1547 621 Charter Communications
22773 1489 2909 103 Cox Communications Inc.
30036 1406 254 667 Mediacom Communications Corp
19262 1395 4728 400 Verizon Online LLC
7018 1322 7063 870 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 1453 416 14 Corbina telecom
6830 648 1927 412 UPC Broadband
34984 595 110 183 BILISIM TELEKOM
20940 551 182 433 Akamai Technologies European
12479 548 629 52 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 460 133 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 1479 1043 79 Types of queries are: POCs, o
8151 1298 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 523 102 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 454 74 8 Nile Online
36992 286 415 21 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 217 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 3545 3815 222 BellSouth.net Inc.
7029 2923 1042 211 Windstream Communications Inc
18566 2094 382 176 Covad Communications Co.
4766 1950 11121 665 Korea Telecom (KIX)
1785 1848 680 122 PaeTec Communications, Inc.
10620 1699 314 156 Types of queries are: POCs, o
4323 1621 1093 388 tw telecom holdings, inc.
7545 1615 303 88 TPG Internet Pty Ltd
17974 1595 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 2923 2712 Windstream Communications Inc
18566 2094 1918 Covad Communications Co.
1785 1848 1726 PaeTec Communications, Inc.
17974 1595 1559 PT Telekomunikasi Indonesia
10620 1699 1543 Types of queries are: POCs, o
7545 1615 1527 TPG Internet Pty Ltd
8402 1453 1439 Corbina telecom
28573 1479 1400 Types of queries are: POCs, o
22773 1489 1386 Cox Communications Inc.
4755 1531 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 /15:1418 /16:11983 /17:6041 /18:10026
/19:20056 /20:27588 /21:27611 /22:37111 /23:35002 /24:196670
/25:12 /26:21 /27:22 /28:157 /29:127 /30:63
/31:0 /32:134
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2539 2923 Windstream Communications Inc
6389 2184 3545 BellSouth.net Inc.
18566 2044 2094 Covad Communications Co.
10620 1594 1699 Types of queries are: POCs, o
8402 1429 1453 Corbina telecom
30036 1366 1406 Mediacom Communications Corp
11492 1117 1154 CABLE ONE, INC.
1785 1057 1848 PaeTec Communications, Inc.
7011 1051 1168 Frontier Communications of Am
22773 951 1489 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:408 2:474 4:15 5:1 6:3 8:356
12:1957 13:1 14:530 15:11 16:3 17:7
20:9 23:58 24:1675 27:1025 31:670 32:60
33:2 34:2 36:4 38:751 40:110 41:2683
42:59 44:3 46:1028 47:3 49:295 50:446
52:13 55:9 56:2 57:43 58:865 59:491
60:358 61:1027 62:1094 63:1957 64:4032 65:2303
66:4303 67:2022 68:1171 69:3140 70:903 71:385
72:1809 74:2629 75:425 76:316 77:877 78:863
79:469 80:1123 81:839 82:523 83:528 84:619
85:1151 86:408 87:930 88:356 89:1589 90:237
91:4257 92:539 93:1535 94:1301 95:1090 96:422
97:286 98:937 99:37 101:107 103:443 106:8
107:88 108:72 109:1165 110:642 111:802 112:353
113:465 114:603 115:684 116:865 117:696 118:871
119:1221 120:343 121:676 122:1567 123:1005 124:1294
125:1302 128:211 129:180 130:158 131:622 132:141
133:21 134:212 135:54 136:204 137:139 138:287
139:120 140:466 141:317 142:370 143:410 144:490
145:64 146:461 147:221 148:616 149:271 150:158
151:194 152:445 153:178 154:6 155:382 156:205
157:329 158:155 159:418 160:331 161:205 162:368
163:164 164:507 165:367 166:540 167:443 168:809
169:144 170:878 171:87 172:4 173:1732 174:699
175:405 176:294 177:375 178:1087 180:1133 181:34
182:642 183:222 184:389 185:1 186:1398 187:776
188:1013 189:1152 190:5194 192:5890 193:5048 194:3553
195:3108 196:1250 197:171 198:3572 199:4158 200:5456
201:1693 202:8263 203:8425 204:4244 205:2357 206:2581
207:2753 208:4020 209:3561 210:2643 211:1449 212:2086
213:1796 214:808 215:95 216:4897 217:1590 218:556
219:337 220:1215 221:501 222:296 223:266
End of report
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