Routing Table Report 08:00 +10GMT Fri 04 Nov, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 374616
Prefixes after maximum aggregation: 164654
Deaggregation factor: 2.28
Unique aggregates announced to Internet: 187049
Total ASes present in the Internet Routing Table: 37508
Prefixes per ASN: 9.99
Origin-only ASes present in the Internet Routing Table: 32359
Origin ASes announcing only one prefix: 15509
Transit ASes present in the Internet Routing Table: 5149
Transit-only ASes present in the Internet Routing Table: 130
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 27
Max AS path prepend of ASN (51310) 25
Prefixes from unregistered ASNs in the Routing Table: 2344
Unregistered ASNs in the Routing Table: 926
Number of 32-bit ASNs allocated by the RIRs: 1923
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3677
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 87
Number of addresses announced to Internet: 2507098112
Equivalent to 149 /8s, 111 /16s and 72 /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: 156500
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89831
Total APNIC prefixes after maximum aggregation: 29749
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 87230
Unique aggregates announced from the APNIC address blocks: 38270
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: 1285
APNIC Region transit ASes present in the Internet Routing Table: 692
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: 629292800
Equivalent to 37 /8s, 130 /16s and 63 /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: 144611
Total ARIN prefixes after maximum aggregation: 73997
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 116841
Unique aggregates announced from the ARIN address blocks: 48398
ARIN Region origin ASes present in the Internet Routing Table: 14665
ARIN Prefixes per ASN: 7.97
ARIN Region origin ASes announcing only one prefix: 5632
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: 804676608
Equivalent to 47 /8s, 246 /16s and 100 /24s
Percentage of available ARIN address space announced: 63.9
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: 91956
Total RIPE prefixes after maximum aggregation: 50969
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 84453
Unique aggregates announced from the RIPE address blocks: 54477
RIPE Region origin ASes present in the Internet Routing Table: 16085
RIPE Prefixes per ASN: 5.25
RIPE Region origin ASes announcing only one prefix: 7984
RIPE Region transit ASes present in the Internet Routing Table: 2521
Average RIPE Region AS path length visible: 3.4
Max RIPE Region AS path length visible: 27
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 491671552
Equivalent to 29 /8s, 78 /16s and 80 /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: 35256
Total LACNIC prefixes after maximum aggregation: 7830
LACNIC Deaggregation factor: 4.50
Prefixes being announced from the LACNIC address blocks: 34817
Unique aggregates announced from the LACNIC address blocks: 18493
LACNIC Region origin ASes present in the Internet Routing Table: 1530
LACNIC Prefixes per ASN: 22.76
LACNIC Region origin ASes announcing only one prefix: 448
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: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 92705280
Equivalent to 5 /8s, 134 /16s and 146 /24s
Percentage of available LACNIC address space announced: 61.4
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: 8595
Total AfriNIC prefixes after maximum aggregation: 2033
AfriNIC Deaggregation factor: 4.23
Prefixes being announced from the AfriNIC address blocks: 6698
Unique aggregates announced from the AfriNIC address blocks: 1997
AfriNIC Region origin ASes present in the Internet Routing Table: 501
AfriNIC Prefixes per ASN: 13.37
AfriNIC Region origin ASes announcing only one prefix: 160
AfriNIC Region transit ASes present in the Internet Routing Table: 109
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: 27615488
Equivalent to 1 /8s, 165 /16s and 97 /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 11121 665 Korea Telecom (KIX)
7545 1611 303 87 TPG Internet Pty Ltd
17974 1601 511 36 PT Telekomunikasi Indonesia
4755 1533 377 174 TATA Communications formerly
9829 1166 989 28 National Internet Backbone
9583 1091 80 499 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 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 3541 3814 223 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 1623 1094 390 tw telecom holdings, inc.
20115 1595 1547 621 Charter Communications
22773 1458 2907 100 Cox Communications Inc.
30036 1400 253 669 Mediacom Communications Corp
19262 1395 4728 400 Verizon Online LLC
7018 1324 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 1370 416 14 Corbina telecom
6830 647 1927 412 UPC Broadband
34984 595 110 183 BILISIM TELEKOM
12479 547 628 51 France Telecom Espana SA
9116 541 326 31 Goldenlines main autonomous s
20940 537 178 421 Akamai Technologies European
3320 507 8169 387 Deutsche Telekom AG
3292 483 2074 408 TDC Data Networks
8866 460 133 26 Bulgarian Telecommunication C
31148 405 22 113 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 1442 1043 79 Types of queries are: POCs, o
8151 1290 2916 339 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 556 434 69 Axtel, S.A.B. de C.V.
7738 552 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 652 446 12 TEDATA
15475 454 74 8 Nile Online
36992 303 415 21 Etisalat MISR
3741 281 939 230 The Internet Solution
6713 244 519 14 Itissalat Al-MAGHRIB
15706 240 32 6 Sudatel Internet Exchange Aut
33776 239 13 8 Starcomms Nigeria Limited
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 3541 3814 223 BellSouth.net Inc.
7029 2371 1042 211 Windstream Communications Inc
18566 2094 382 176 Covad Communications Co.
4766 1948 11121 665 Korea Telecom (KIX)
1785 1847 680 122 PaeTec Communications, Inc.
10620 1699 314 156 Types of queries are: POCs, o
4323 1623 1094 390 tw telecom holdings, inc.
7545 1611 303 87 TPG Internet Pty Ltd
17974 1601 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 1601 1565 PT Telekomunikasi Indonesia
10620 1699 1543 Types of queries are: POCs, o
7545 1611 1524 TPG Internet Pty Ltd
28573 1442 1363 Types of queries are: POCs, o
4755 1533 1359 TATA Communications formerly
22773 1458 1358 Cox Communications Inc.
8402 1370 1356 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 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 /8:20 /9:12 /10:27 /11:81 /12:237
/13:465 /14:807 /15:1419 /16:11983 /17:6032 /18:10025
/19:20043 /20:27509 /21:27648 /22:36861 /23:34927 /24:195993
/25:12 /26:21 /27:22 /28:155 /29:125 /30:63
/31:0 /32:129
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2181 3541 BellSouth.net Inc.
18566 2044 2094 Covad Communications Co.
7029 2023 2371 Windstream Communications Inc
10620 1594 1699 Types of queries are: POCs, o
30036 1361 1400 Mediacom Communications Corp
8402 1345 1370 Corbina telecom
11492 1117 1154 CABLE ONE, INC.
1785 1057 1847 PaeTec Communications, Inc.
7011 1051 1169 Frontier Communications of Am
22773 946 1458 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:415 2:450 4:15 5:1 6:3 8:357
12:1954 13:1 14:531 15:11 16:3 17:7
20:9 23:59 24:1676 27:976 31:670 32:60
33:2 34:2 36:4 38:754 40:110 41:2716
42:55 44:3 46:1022 47:3 49:293 50:442
52:13 55:6 56:2 57:43 58:857 59:491
60:358 61:1024 62:1090 63:1961 64:4017 65:2302
66:4276 67:2007 68:1162 69:3182 70:878 71:384
72:1805 74:2600 75:388 76:316 77:881 78:865
79:478 80:1150 81:844 82:526 83:529 84:619
85:1151 86:407 87:931 88:357 89:1588 90:237
91:4254 92:536 93:1523 94:1304 95:1059 96:423
97:286 98:936 99:37 101:104 103:421 106:70
107:83 108:72 109:1158 110:640 111:795 112:334
113:464 114:608 115:681 116:864 117:696 118:867
119:1214 120:341 121:677 122:1557 123:1009 124:1294
125:1302 128:210 129:182 130:158 131:621 132:140
133:21 134:213 135:54 136:210 137:131 138:285
139:121 140:461 141:316 142:371 143:404 144:487
145:64 146:459 147:214 148:617 149:265 150:158
151:194 152:444 153:178 154:6 155:385 156:205
157:329 158:154 159:416 160:332 161:205 162:368
163:163 164:503 165:366 166:541 167:441 168:810
169:144 170:880 171:85 172:4 173:1705 174:679
175:402 176:271 177:369 178:1081 180:1134 181:38
182:640 183:213 184:387 185:1 186:1309 187:766
188:1002 189:1141 190:5067 192:5887 193:5046 194:3555
195:3111 196:1233 197:167 198:3572 199:4118 200:5438
201:1679 202:8284 203:8392 204:4237 205:2357 206:2587
207:2752 208:4029 209:3556 210:2640 211:1449 212:2097
213:1780 214:806 215:96 216:4897 217:1602 218:555
219:337 220:1214 221:501 222:296 223:265
End of report