Routing Table Report 08:00 +10GMT Mon 17 Oct, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 371588
Prefixes after maximum aggregation: 167368
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 184985
Total ASes present in the Internet Routing Table: 37391
Prefixes per ASN: 9.94
Origin-only ASes present in the Internet Routing Table: 32289
Origin ASes announcing only one prefix: 15497
Transit ASes present in the Internet Routing Table: 5102
Transit-only ASes present in the Internet Routing Table: 122
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: 2211
Unregistered ASNs in the Routing Table: 871
Number of 32-bit ASNs allocated by the RIRs: 1866
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3465
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 87
Number of addresses announced to Internet: 2500984064
Equivalent to 149 /8s, 17 /16s and 253 /24s
Percentage of available address space announced: 67.5
Percentage of allocated address space announced: 67.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.5
Total number of prefixes smaller than registry allocations: 154825
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89512
Total APNIC prefixes after maximum aggregation: 29600
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 86909
Unique aggregates announced from the APNIC address blocks: 37959
APNIC Region origin ASes present in the Internet Routing Table: 4536
APNIC Prefixes per ASN: 19.16
APNIC Region origin ASes announcing only one prefix: 1273
APNIC Region transit ASes present in the Internet Routing Table: 685
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: 628048896
Equivalent to 37 /8s, 111 /16s and 68 /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: 144049
Total ARIN prefixes after maximum aggregation: 73677
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 116374
Unique aggregates announced from the ARIN address blocks: 47898
ARIN Region origin ASes present in the Internet Routing Table: 14650
ARIN Prefixes per ASN: 7.94
ARIN Region origin ASes announcing only one prefix: 5651
ARIN Region transit ASes present in the Internet Routing Table: 1486
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: 804610304
Equivalent to 47 /8s, 245 /16s and 97 /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: 90983
Total RIPE prefixes after maximum aggregation: 50518
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 83658
Unique aggregates announced from the RIPE address blocks: 54101
RIPE Region origin ASes present in the Internet Routing Table: 16027
RIPE Prefixes per ASN: 5.22
RIPE Region origin ASes announcing only one prefix: 7972
RIPE Region transit ASes present in the Internet Routing Table: 2499
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: 490787584
Equivalent to 29 /8s, 64 /16s and 211 /24s
Percentage of available RIPE address space announced: 79.1
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: 34389
Total LACNIC prefixes after maximum aggregation: 7748
LACNIC Deaggregation factor: 4.44
Prefixes being announced from the LACNIC address blocks: 33965
Unique aggregates announced from the LACNIC address blocks: 17844
LACNIC Region origin ASes present in the Internet Routing Table: 1527
LACNIC Prefixes per ASN: 22.24
LACNIC Region origin ASes announcing only one prefix: 451
LACNIC Region transit ASes present in the Internet Routing Table: 264
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: 90753536
Equivalent to 5 /8s, 104 /16s and 202 /24s
Percentage of available LACNIC address space announced: 60.1
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: 8504
Total AfriNIC prefixes after maximum aggregation: 2020
AfriNIC Deaggregation factor: 4.21
Prefixes being announced from the AfriNIC address blocks: 6573
Unique aggregates announced from the AfriNIC address blocks: 1971
AfriNIC Region origin ASes present in the Internet Routing Table: 483
AfriNIC Prefixes per ASN: 13.61
AfriNIC Region origin ASes announcing only one prefix: 150
AfriNIC Region transit ASes present in the Internet Routing Table: 104
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: 27805184
Equivalent to 1 /8s, 168 /16s and 70 /24s
Percentage of available AfriNIC address space announced: 41.4
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 1934 11055 653 Korea Telecom (KIX)
17974 1772 512 38 PT Telekomunikasi Indonesia
7545 1609 303 86 TPG Internet Pty Ltd
4755 1524 379 172 TATA Communications formerly
9829 1165 989 28 National Internet Backbone
9583 1087 80 503 Sify Limited
24560 1018 342 229 Bharti Airtel Ltd., Telemedia
7552 983 1062 11 Vietel Corporation
18101 954 165 143 Reliance Infocom Ltd Internet
4808 936 1990 258 CNCGROUP IP network China169
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 2151 1041 209 Windstream Communications Inc
18566 2097 382 176 Covad Communications Co.
1785 1839 680 121 PaeTec Communications, Inc.
4323 1630 1099 392 tw telecom holdings, inc.
20115 1590 1541 635 Charter Communications
22773 1460 2907 100 Cox Communications Inc.
19262 1395 4728 400 Verizon Online LLC
30036 1390 250 672 Mediacom Communications Corp
7018 1352 7113 858 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 1452 352 13 Corbina telecom
6830 652 1927 415 UPC Broadband
34984 581 108 179 BILISIM TELEKOM
20940 547 183 421 Akamai Technologies European
9116 540 326 31 Goldenlines main autonomous s
3320 502 8169 384 Deutsche Telekom AG
3292 484 2082 410 TDC Data Networks
12479 481 593 7 France Telecom Espana SA
8866 459 133 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 1368 1015 68 Types of queries are: POCs, o
8151 1275 2841 340 Uninet S.A. de C.V.
7303 1164 683 175 Telecom Argentina S.A.
22047 580 322 17 Types of queries are: POCs, o
27947 568 72 79 Telconet S.A
6503 560 450 70 Axtel, S.A.B. de C.V.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 540 233 96 Types of queries are: POCs, o
11172 521 101 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 797 146 33 LINKdotNET AS number
8452 656 446 12 TEDATA
15475 454 74 8 Nile Online
36992 300 415 21 Etisalat MISR
3741 279 938 230 The Internet Solution
15706 244 32 6 Sudatel Internet Exchange Aut
6713 242 519 14 Itissalat Al-MAGHRIB
29571 217 17 13 Ci Telecom Autonomous system
33776 207 13 14 Starcomms Nigeria Limited
12258 199 28 59 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 2151 1041 209 Windstream Communications Inc
18566 2097 382 176 Covad Communications Co.
4766 1934 11055 653 Korea Telecom (KIX)
1785 1839 680 121 PaeTec Communications, Inc.
17974 1772 512 38 PT Telekomunikasi Indonesia
10620 1681 310 155 Types of queries are: POCs, o
4323 1630 1099 392 tw telecom holdings, inc.
7545 1609 303 86 TPG Internet Pty Ltd
20115 1590 1541 635 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 2151 1942 Windstream Communications Inc
18566 2097 1921 Covad Communications Co.
17974 1772 1734 PT Telekomunikasi Indonesia
1785 1839 1718 PaeTec Communications, Inc.
10620 1681 1526 Types of queries are: POCs, o
7545 1609 1523 TPG Internet Pty Ltd
8402 1452 1439 Corbina telecom
22773 1460 1360 Cox Communications Inc.
4755 1524 1352 TATA Communications formerly
28573 1368 1300 Types of queries are: POCs, o
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
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 /12:236
/13:464 /14:806 /15:1420 /16:11951 /17:6012 /18:10001
/19:20035 /20:27191 /21:27209 /22:36596 /23:34694 /24:194317
/25:12 /26:20 /27:22 /28:151 /29:127 /30:61
/31:0 /32:123
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2186 3548 BellSouth.net Inc.
18566 2047 2097 Covad Communications Co.
7029 1823 2151 Windstream Communications Inc
10620 1576 1681 Types of queries are: POCs, o
8402 1429 1452 Corbina telecom
30036 1352 1390 Mediacom Communications Corp
11492 1114 1151 CABLE ONE, INC.
1785 1056 1839 PaeTec Communications, Inc.
7011 1048 1166 Frontier Communications of Am
22773 948 1460 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:400 2:477 4:15 5:1 6:3 8:355
12:1955 13:1 14:528 15:11 16:3 17:7
20:9 23:58 24:1679 27:960 31:594 32:60
33:4 34:2 36:4 38:747 40:109 41:2647
42:50 44:3 46:995 47:3 49:263 50:444
52:13 55:6 56:2 57:35 58:832 59:486
60:360 61:1011 62:1093 63:1922 64:4064 65:2305
66:4251 67:1964 68:1149 69:3224 70:879 71:377
72:1865 74:2575 75:377 76:345 77:885 78:863
79:482 80:1125 81:825 82:505 83:534 84:637
85:1118 86:406 87:891 88:356 89:1593 90:269
91:4195 92:526 93:1520 94:1301 95:1029 96:432
97:283 98:910 99:37 101:94 103:367 106:70
107:68 108:56 109:1052 110:638 111:785 112:320
113:460 114:596 115:669 116:869 117:686 118:854
119:1224 120:337 121:676 122:1556 123:1019 124:1302
125:1331 128:208 129:171 130:158 131:583 132:136
133:21 134:209 135:54 136:211 137:136 138:290
139:117 140:465 141:293 142:364 143:422 144:488
145:63 146:466 147:214 148:612 149:257 150:160
151:192 152:446 153:178 154:6 155:387 156:200
157:328 158:152 159:407 160:323 161:204 162:336
163:164 164:505 165:365 166:537 167:437 168:730
169:143 170:872 171:85 172:4 173:1693 174:668
175:421 176:277 177:323 178:1052 180:1098 181:36
182:624 183:204 184:371 185:1 186:1279 187:690
188:930 189:857 190:5074 192:5864 193:5026 194:3549
195:3098 196:1246 197:172 198:3575 199:4114 200:5435
201:1649 202:8278 203:8374 204:4218 205:2335 206:2587
207:2751 208:4050 209:3562 210:2621 211:1446 212:2081
213:1771 214:713 215:82 216:4959 217:1614 218:553
219:329 220:1202 221:499 222:320 223:274
End of report
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