Routing Table Report 08:00 +10GMT Mon 07 Nov, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 375132
Prefixes after maximum aggregation: 164672
Deaggregation factor: 2.28
Unique aggregates announced to Internet: 187235
Total ASes present in the Internet Routing Table: 37477
Prefixes per ASN: 10.01
Origin-only ASes present in the Internet Routing Table: 32332
Origin ASes announcing only one prefix: 15481
Transit ASes present in the Internet Routing Table: 5145
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: 2352
Unregistered ASNs in the Routing Table: 925
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: 3671
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 85
Number of addresses announced to Internet: 2507317248
Equivalent to 149 /8s, 114 /16s and 160 /24s
Percentage of available address space announced: 67.6
Percentage of allocated address space announced: 67.6
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: 156915
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89854
Total APNIC prefixes after maximum aggregation: 29750
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 87241
Unique aggregates announced from the APNIC address blocks: 38294
APNIC Region origin ASes present in the Internet Routing Table: 4553
APNIC Prefixes per ASN: 19.16
APNIC Region origin ASes announcing only one prefix: 1289
APNIC Region transit ASes present in the Internet Routing Table: 693
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: 629322496
Equivalent to 37 /8s, 130 /16s and 179 /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: 144685
Total ARIN prefixes after maximum aggregation: 74034
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 116910
Unique aggregates announced from the ARIN address blocks: 48483
ARIN Region origin ASes present in the Internet Routing Table: 14658
ARIN Prefixes per ASN: 7.98
ARIN Region origin ASes announcing only one prefix: 5621
ARIN Region transit ASes present in the Internet Routing Table: 1492
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: 804751872
Equivalent to 47 /8s, 247 /16s and 138 /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: 92260
Total RIPE prefixes after maximum aggregation: 50982
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 84689
Unique aggregates announced from the RIPE address blocks: 54496
RIPE Region origin ASes present in the Internet Routing Table: 16077
RIPE Prefixes per ASN: 5.27
RIPE Region origin ASes announcing only one prefix: 7972
RIPE Region transit ASes present in the Internet Routing Table: 2514
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: 491597568
Equivalent to 29 /8s, 77 /16s and 47 /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: 35400
Total LACNIC prefixes after maximum aggregation: 7810
LACNIC Deaggregation factor: 4.53
Prefixes being announced from the LACNIC address blocks: 34971
Unique aggregates announced from the LACNIC address blocks: 18542
LACNIC Region origin ASes present in the Internet Routing Table: 1525
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: 268
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: 92855808
Equivalent to 5 /8s, 136 /16s and 222 /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: 8573
Total AfriNIC prefixes after maximum aggregation: 2020
AfriNIC Deaggregation factor: 4.24
Prefixes being announced from the AfriNIC address blocks: 6655
Unique aggregates announced from the AfriNIC address blocks: 1987
AfriNIC Region origin ASes present in the Internet Routing Table: 491
AfriNIC Prefixes per ASN: 13.55
AfriNIC Region origin ASes announcing only one prefix: 153
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: 27587328
Equivalent to 1 /8s, 164 /16s and 243 /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 1611 303 85 TPG Internet Pty Ltd
17974 1596 511 36 PT Telekomunikasi Indonesia
4755 1533 377 174 TATA Communications formerly
9829 1166 989 28 National Internet Backbone
9583 1098 81 502 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 2371 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 1404 253 671 Mediacom Communications Corp
19262 1395 4728 400 Verizon Online LLC
7018 1322 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 1513 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 507 8169 387 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 1474 1043 79 Types of queries are: POCs, o
8151 1290 2918 343 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 525 102 98 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 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 2371 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 1611 303 85 TPG Internet Pty Ltd
17974 1596 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 2371 2160 Windstream Communications Inc
18566 2094 1918 Covad Communications Co.
1785 1847 1725 PaeTec Communications, Inc.
17974 1596 1560 PT Telekomunikasi Indonesia
10620 1699 1543 Types of queries are: POCs, o
7545 1611 1526 TPG Internet Pty Ltd
8402 1513 1499 Corbina telecom
28573 1474 1395 Types of queries are: POCs, o
22773 1488 1385 Cox Communications Inc.
4755 1533 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 /17:6040 /18:10038
/19:20056 /20:27530 /21:27607 /22:36879 /23:34923 /24:196482
/25:12 /26:21 /27:22 /28:154 /29:126 /30:63
/31:0 /32:129
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 2023 2371 Windstream Communications Inc
10620 1594 1699 Types of queries are: POCs, o
8402 1488 1513 Corbina telecom
30036 1364 1404 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)
----------------------------------------------
1:417 2:479 4:15 5:1 6:3 8:357
12:1952 13:1 14:529 15:11 16:3 17:7
20:9 23:58 24:1677 27:1023 31:664 32:60
33:2 34:2 36:4 38:751 40:110 41:2720
42:56 44:3 46:1024 47:3 49:296 50:445
52:13 55:7 56:2 57:43 58:860 59:491
60:358 61:1027 62:1096 63:1959 64:4022 65:2300
66:4261 67:2004 68:1163 69:3182 70:879 71:385
72:1804 74:2603 75:388 76:316 77:963 78:874
79:468 80:1125 81:832 82:524 83:526 84:618
85:1151 86:408 87:978 88:357 89:1601 90:237
91:4254 92:535 93:1538 94:1300 95:1107 96:422
97:286 98:936 99:37 101:106 103:428 106:8
107:84 108:72 109:1148 110:636 111:795 112:348
113:466 114:608 115:684 116:864 117:696 118:869
119:1222 120:342 121:678 122:1560 123:1011 124:1294
125:1302 128:212 129:181 130:158 131:622 132:142
133:21 134:213 135:54 136:210 137:139 138:285
139:120 140:459 141:316 142:370 143:409 144:488
145:64 146:455 147:223 148:616 149:266 150:158
151:194 152:444 153:178 154:6 155:384 156:205
157:328 158:154 159:418 160:329 161:204 162:368
163:163 164:507 165:367 166:540 167:441 168:813
169:144 170:880 171:87 172:4 173:1709 174:677
175:401 176:299 177:372 178:1084 180:1132 181:38
182:639 183:213 184:388 185:1 186:1329 187:772
188:1058 189:1146 190:5153 192:5882 193:5050 194:3556
195:3126 196:1251 197:168 198:3576 199:4164 200:5437
201:1691 202:8252 203:8388 204:4241 205:2351 206:2586
207:2752 208:4031 209:3554 210:2642 211:1448 212:2102
213:1782 214:807 215:95 216:4892 217:1601 218:557
219:337 220:1212 221:501 222:296 223:261
End of report
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