Routing Table Report 08:00 +10GMT Wed 16 Nov, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 375969
Prefixes after maximum aggregation: 164951
Deaggregation factor: 2.28
Unique aggregates announced to Internet: 187489
Total ASes present in the Internet Routing Table: 37549
Prefixes per ASN: 10.01
Origin-only ASes present in the Internet Routing Table: 32384
Origin ASes announcing only one prefix: 15505
Transit ASes present in the Internet Routing Table: 5165
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: 2452
Unregistered ASNs in the Routing Table: 962
Number of 32-bit ASNs allocated by the RIRs: 1948
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3773
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 89
Number of addresses announced to Internet: 2507453440
Equivalent to 149 /8s, 116 /16s and 180 /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: 157502
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90014
Total APNIC prefixes after maximum aggregation: 29868
APNIC Deaggregation factor: 3.01
Prefixes being announced from the APNIC address blocks: 87383
Unique aggregates announced from the APNIC address blocks: 38425
APNIC Region origin ASes present in the Internet Routing Table: 4562
APNIC Prefixes per ASN: 19.15
APNIC Region origin ASes announcing only one prefix: 1288
APNIC Region transit ASes present in the Internet Routing Table: 692
Average APNIC Region AS path length visible: 3.9
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: 629695488
Equivalent to 37 /8s, 136 /16s and 100 /24s
Percentage of available APNIC address space announced: 79.9
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: 144814
Total ARIN prefixes after maximum aggregation: 74063
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 117212
Unique aggregates announced from the ARIN address blocks: 48480
ARIN Region origin ASes present in the Internet Routing Table: 14680
ARIN Prefixes per ASN: 7.98
ARIN Region origin ASes announcing only one prefix: 5629
ARIN Region transit ASes present in the Internet Routing Table: 1500
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: 803130112
Equivalent to 47 /8s, 222 /16s and 203 /24s
Percentage of available ARIN address space announced: 63.8
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: 92446
Total RIPE prefixes after maximum aggregation: 51051
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 84699
Unique aggregates announced from the RIPE address blocks: 54365
RIPE Region origin ASes present in the Internet Routing Table: 16105
RIPE Prefixes per ASN: 5.26
RIPE Region origin ASes announcing only one prefix: 7987
RIPE Region transit ASes present in the Internet Routing Table: 2529
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 22
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 491906560
Equivalent to 29 /8s, 81 /16s and 230 /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: 35696
Total LACNIC prefixes after maximum aggregation: 7851
LACNIC Deaggregation factor: 4.55
Prefixes being announced from the LACNIC address blocks: 35302
Unique aggregates announced from the LACNIC address blocks: 18613
LACNIC Region origin ASes present in the Internet Routing Table: 1535
LACNIC Prefixes per ASN: 23.00
LACNIC Region origin ASes announcing only one prefix: 447
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: 93053952
Equivalent to 5 /8s, 139 /16s and 228 /24s
Percentage of available LACNIC address space announced: 61.6
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: 8553
Total AfriNIC prefixes after maximum aggregation: 2043
AfriNIC Deaggregation factor: 4.19
Prefixes being announced from the AfriNIC address blocks: 6634
Unique aggregates announced from the AfriNIC address blocks: 2026
AfriNIC Region origin ASes present in the Internet Routing Table: 493
AfriNIC Prefixes per ASN: 13.46
AfriNIC Region origin ASes announcing only one prefix: 154
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: 27641344
Equivalent to 1 /8s, 165 /16s and 198 /24s
Percentage of available AfriNIC address space announced: 41.2
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 1948 11105 662 Korea Telecom (KIX)
7545 1625 303 88 TPG Internet Pty Ltd
17974 1594 511 36 PT Telekomunikasi Indonesia
4755 1515 378 170 TATA Communications formerly
9829 1166 989 28 National Internet Backbone
9583 1116 83 512 Sify Limited
7552 987 1062 11 Vietel Corporation
4808 978 2001 281 CNCGROUP IP network China169
24560 964 343 218 Bharti Airtel Ltd., Telemedia
18101 953 119 148 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 3542 3814 219 BellSouth.net Inc.
7029 2952 1042 212 Windstream Communications Inc
18566 2093 382 176 Covad Communications Co.
1785 1851 680 122 PaeTec Communications, Inc.
4323 1613 1093 388 tw telecom holdings, inc.
20115 1594 1545 625 Charter Communications
22773 1495 2909 103 Cox Communications Inc.
30036 1420 256 668 Mediacom Communications Corp
19262 1395 4728 400 Verizon Online LLC
7018 1321 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 1354 416 14 Corbina telecom
6830 645 1927 411 UPC Broadband
34984 599 112 187 BILISIM TELEKOM
20940 553 182 435 Akamai Technologies European
9116 541 326 31 Goldenlines main autonomous s
3320 512 8168 389 Deutsche Telekom AG
3292 480 2106 408 TDC Data Networks
12479 480 596 9 France Telecom Espana SA
8866 460 133 26 Bulgarian Telecommunication C
31148 408 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 1706 316 157 Types of queries are: POCs, o
28573 1482 1043 79 Types of queries are: POCs, o
8151 1293 2929 345 Uninet S.A. de C.V.
7303 1238 751 173 Telecom Argentina S.A.
27947 588 72 86 Telconet S.A
22047 580 322 17 Types of queries are: POCs, o
6503 555 434 69 Axtel, S.A.B. de C.V.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 542 234 96 Types of queries are: POCs, o
11172 524 101 96 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 751 146 33 LINKdotNET AS number
8452 685 446 12 TEDATA
15475 454 74 8 Nile Online
36992 283 415 21 Etisalat MISR
3741 281 939 230 The Internet Solution
15706 242 32 6 Sudatel Internet Exchange Aut
6713 235 519 14 Itissalat Al-MAGHRIB
29571 218 17 13 Ci Telecom Autonomous system
33776 212 13 14 Starcomms Nigeria Limited
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 3542 3814 219 BellSouth.net Inc.
7029 2952 1042 212 Windstream Communications Inc
18566 2093 382 176 Covad Communications Co.
4766 1948 11105 662 Korea Telecom (KIX)
1785 1851 680 122 PaeTec Communications, Inc.
10620 1706 316 157 Types of queries are: POCs, o
7545 1625 303 88 TPG Internet Pty Ltd
4323 1613 1093 388 tw telecom holdings, inc.
17974 1594 511 36 PT Telekomunikasi Indonesia
20115 1594 1545 625 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 2952 2740 Windstream Communications Inc
18566 2093 1917 Covad Communications Co.
1785 1851 1729 PaeTec Communications, Inc.
17974 1594 1558 PT Telekomunikasi Indonesia
10620 1706 1549 Types of queries are: POCs, o
7545 1625 1537 TPG Internet Pty Ltd
28573 1482 1403 Types of queries are: POCs, o
22773 1495 1392 Cox Communications Inc.
4755 1515 1345 TATA Communications formerly
8402 1354 1340 Corbina telecom
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 /14:805 /15:1419 /16:11965 /17:6052 /18:10064
/19:20078 /20:27595 /21:27709 /22:37507 /23:35059 /24:196361
/25:12 /26:21 /27:21 /28:150 /29:126 /30:59
/31:0 /32:124
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2566 2952 Windstream Communications Inc
6389 2182 3542 BellSouth.net Inc.
18566 2043 2093 Covad Communications Co.
10620 1601 1706 Types of queries are: POCs, o
30036 1380 1420 Mediacom Communications Corp
8402 1330 1354 Corbina telecom
11492 1117 1154 CABLE ONE, INC.
1785 1058 1851 PaeTec Communications, Inc.
7011 1051 1168 Frontier Communications of Am
22773 957 1495 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:411 2:449 4:15 5:1 6:3 8:355
12:1965 13:1 14:541 15:11 16:3 17:7
20:9 23:63 24:1677 27:1030 31:695 32:60
33:2 34:2 36:4 38:754 40:110 41:2699
42:60 44:3 46:1043 47:3 49:291 50:452
52:13 55:5 56:2 57:43 58:870 59:485
60:352 61:1031 62:1087 63:1960 64:4044 65:2298
66:4311 67:2018 68:1176 69:3141 70:903 71:389
72:1820 74:2631 75:430 76:319 77:890 78:869
79:489 80:1131 81:837 82:515 83:520 84:619
85:1156 86:409 87:905 88:355 89:1589 90:236
91:4255 92:536 93:1415 94:1309 95:1043 96:424
97:285 98:825 99:37 101:112 103:469 106:7
107:93 108:80 109:1181 110:649 111:797 112:349
113:466 114:608 115:680 116:853 117:692 118:877
119:1220 120:345 121:652 122:1574 123:1014 124:1294
125:1294 128:219 129:176 130:162 131:628 132:147
133:21 134:219 135:54 136:211 137:143 138:287
139:119 140:467 141:252 142:370 143:410 144:494
145:65 146:463 147:219 148:608 149:266 150:157
151:194 152:447 153:172 154:6 155:389 156:205
157:330 158:155 159:423 160:332 161:205 162:371
163:164 164:507 165:367 166:540 167:444 168:816
169:146 170:880 171:87 172:4 173:1746 174:599
175:405 176:288 177:377 178:1109 180:1140 181:39
182:642 183:230 184:396 185:1 186:1412 187:783
188:965 189:1154 190:5196 192:5892 193:5057 194:3542
195:3106 196:1256 197:162 198:3564 199:4182 200:5456
201:1695 202:8229 203:8430 204:4228 205:2359 206:2569
207:2743 208:4020 209:3556 210:2640 211:1453 212:2014
213:1805 214:812 215:97 216:4889 217:1597 218:560
219:333 220:1217 221:501 222:297 223:275
End of report
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