Routing Table Report 08:00 +10GMT Sat 16 Jul, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 358142
Prefixes after maximum aggregation: 163345
Deaggregation factor: 2.19
Unique aggregates announced to Internet: 180612
Total ASes present in the Internet Routing Table: 36767
Prefixes per ASN: 9.74
Origin-only ASes present in the Internet Routing Table: 31713
Origin ASes announcing only one prefix: 15265
Transit ASes present in the Internet Routing Table: 5054
Transit-only ASes present in the Internet Routing Table: 121
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 37
Max AS path prepend of ASN (22394) 27
Prefixes from unregistered ASNs in the Routing Table: 2305
Unregistered ASNs in the Routing Table: 614
Number of 32-bit ASNs allocated by the RIRs: 1559
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2908
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 122
Number of addresses announced to Internet: 2493539584
Equivalent to 148 /8s, 160 /16s and 101 /24s
Percentage of available address space announced: 67.3
Percentage of allocated address space announced: 67.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.1
Total number of prefixes smaller than registry allocations: 147846
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 86118
Total APNIC prefixes after maximum aggregation: 28970
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 83765
Unique aggregates announced from the APNIC address blocks: 37483
APNIC Region origin ASes present in the Internet Routing Table: 4465
APNIC Prefixes per ASN: 18.76
APNIC Region origin ASes announcing only one prefix: 1265
APNIC Region transit ASes present in the Internet Routing Table: 677
Average APNIC Region AS path length visible: 4.1
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: 620315648
Equivalent to 36 /8s, 249 /16s and 68 /24s
Percentage of available APNIC address space announced: 78.7
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
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: 140287
Total ARIN prefixes after maximum aggregation: 72445
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 112520
Unique aggregates announced from the ARIN address blocks: 46672
ARIN Region origin ASes present in the Internet Routing Table: 14400
ARIN Prefixes per ASN: 7.81
ARIN Region origin ASes announcing only one prefix: 5516
ARIN Region transit ASes present in the Internet Routing Table: 1455
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 30
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 802438144
Equivalent to 47 /8s, 212 /16s and 60 /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: 87050
Total RIPE prefixes after maximum aggregation: 49233
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 80357
Unique aggregates announced from the RIPE address blocks: 52847
RIPE Region origin ASes present in the Internet Routing Table: 15794
RIPE Prefixes per ASN: 5.09
RIPE Region origin ASes announcing only one prefix: 7888
RIPE Region transit ASes present in the Internet Routing Table: 2482
Average RIPE Region AS path length visible: 3.6
Max RIPE Region AS path length visible: 37
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 479507712
Equivalent to 28 /8s, 148 /16s and 181 /24s
Percentage of available RIPE address space announced: 77.2
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: 32831
Total LACNIC prefixes after maximum aggregation: 7488
LACNIC Deaggregation factor: 4.38
Prefixes being announced from the LACNIC address blocks: 32294
Unique aggregates announced from the LACNIC address blocks: 17065
LACNIC Region origin ASes present in the Internet Routing Table: 1468
LACNIC Prefixes per ASN: 22.00
LACNIC Region origin ASes announcing only one prefix: 446
LACNIC Region transit ASes present in the Internet Routing Table: 258
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: 86031872
Equivalent to 5 /8s, 32 /16s and 190 /24s
Percentage of available LACNIC address space announced: 57.0
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: 8249
Total AfriNIC prefixes after maximum aggregation: 2000
AfriNIC Deaggregation factor: 4.12
Prefixes being announced from the AfriNIC address blocks: 6453
Unique aggregates announced from the AfriNIC address blocks: 1991
AfriNIC Region origin ASes present in the Internet Routing Table: 470
AfriNIC Prefixes per ASN: 13.73
AfriNIC Region origin ASes announcing only one prefix: 150
AfriNIC Region transit ASes present in the Internet Routing Table: 102
Average AfriNIC Region AS path length visible: 3.4
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: 24387328
Equivalent to 1 /8s, 116 /16s and 31 /24s
Percentage of available AfriNIC address space announced: 36.3
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 1909 11036 632 Korea Telecom (KIX)
7545 1552 301 84 TPG Internet Pty Ltd
17974 1543 456 45 PT Telekomunikasi Indonesia
4755 1500 375 168 TATA Communications formerly
24560 1155 336 187 Bharti Airtel Ltd., Telemedia
9829 1106 923 47 National Internet Backbone
9583 1064 78 504 Sify Limited
17488 964 187 106 Hathway IP Over Cable Interne
4808 946 2003 274 CNCGROUP IP network China169
18101 932 116 139 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 3598 3819 242 BellSouth.net Inc.
18566 1912 365 240 Covad Communications Co.
1785 1809 681 121 PaeTec Communications, Inc.
4323 1657 1098 401 tw telecom holdings, inc.
20115 1639 1534 627 Charter Communications
19262 1410 4744 390 Verizon Online LLC
7029 1389 1031 209 Windstream Communications Inc
7018 1376 7102 902 AT&T Services, Inc.
22773 1350 2897 88 Cox Communications Inc.
2386 1261 521 907 AT&T Data Communications Serv
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
9116 540 326 31 Goldenlines main autonomous s
34984 535 106 184 BILISIM TELEKOM
6830 509 1780 315 UPC Broadband
3292 468 2078 403 TDC Data Networks
20940 459 131 355 Akamai Technologies European
12479 457 593 7 France Telecom Espana SA
8866 449 133 25 Bulgarian Telecommunication C
29049 432 32 47 AzerSat LLC.
3320 422 8151 368 Deutsche Telekom AG
8551 405 355 38 Bezeq International
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 1557 286 164 Types of queries are: POCs, o
28573 1262 995 77 Types of queries are: POCs, o
8151 1254 2728 350 Uninet S.A. de C.V.
7303 985 511 164 Telecom Argentina S.A.
6503 737 354 74 Axtel, S.A.B. de C.V.
14420 690 55 84 CORPORACION NACIONAL DE TELEC
22047 578 322 17 Types of queries are: POCs, o
3816 534 230 96 Types of queries are: POCs, o
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 498 54 48 Telconet S.A
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 792 147 34 LINKdotNET AS number
8452 777 445 11 TEDATA
15475 513 74 8 Nile Online
36992 314 415 14 Etisalat MISR
3741 261 937 223 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 227 13 5 Starcomms Nigeria Limited
24835 175 78 10 RAYA Telecom - Egypt
29571 158 17 11 Ci Telecom Autonomous system
16637 149 441 87 MTN Network Solutions
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 3598 3819 242 BellSouth.net Inc.
23456 2908 706 1561 32-bit ASN transition
18566 1912 365 240 Covad Communications Co.
4766 1909 11036 632 Korea Telecom (KIX)
1785 1809 681 121 PaeTec Communications, Inc.
4323 1657 1098 401 tw telecom holdings, inc.
20115 1639 1534 627 Charter Communications
10620 1557 286 164 Types of queries are: POCs, o
7545 1552 301 84 TPG Internet Pty Ltd
17974 1543 456 45 PT Telekomunikasi Indonesia
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
1785 1809 1688 PaeTec Communications, Inc.
18566 1912 1672 Covad Communications Co.
17974 1543 1498 PT Telekomunikasi Indonesia
7545 1552 1468 TPG Internet Pty Ltd
10620 1557 1393 Types of queries are: POCs, o
23456 2908 1347 32-bit ASN transition
4755 1500 1332 TATA Communications formerly
4766 1909 1277 Korea Telecom (KIX)
22773 1350 1262 Cox Communications Inc.
4323 1657 1256 tw telecom holdings, inc.
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.
26973 UNALLOCATED 12.39.152.0/24 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 65535 Internet Assigned Numbers Aut
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
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV
62.61.221.0/24 24974 Tachyon Europe BV
64.21.192.0/20 11610 Internet Nebraska Corporation
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 /8:21 /9:12 /10:26 /11:80 /12:232
/13:464 /14:793 /15:1396 /16:11971 /17:5859 /18:9756
/19:19581 /20:25897 /21:26122 /22:34597 /23:33311 /24:187509
/25:13 /26:21 /27:25 /28:160 /29:106 /30:59
/31:0 /32:131
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2214 3598 BellSouth.net Inc.
18566 1868 1912 Covad Communications Co.
10620 1452 1557 Types of queries are: POCs, o
23456 1425 2908 32-bit ASN transition
7029 1069 1389 Windstream Communications Inc
11492 1063 1109 CABLE ONE, INC.
7011 1056 1158 Frontier Communications of Am
6478 1055 1084 AT&T Services, Inc.
1785 1053 1809 PaeTec Communications, Inc.
22773 864 1350 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:326 2:44 4:16 5:1 6:3 8:337
12:1965 13:1 14:478 15:15 16:3 17:5
20:10 23:14 24:1657 27:820 31:500 32:59
33:4 34:2 36:4 38:741 40:104 41:2555
42:32 44:3 46:1036 47:3 49:201 50:471
52:13 54:2 55:5 56:2 57:34 58:819
59:474 60:384 61:1018 62:1037 63:1926 64:3932
65:2295 66:3878 67:1869 68:1100 69:3042 70:753
71:392 72:1883 74:2381 75:318 76:340 77:886
78:710 79:466 80:1115 81:843 82:504 83:457
84:691 85:1064 86:522 87:766 88:337 89:1530
90:224 91:3964 92:521 93:1050 94:1340 95:861
96:411 97:261 98:891 99:37 101:72 103:143
106:10 107:22 108:70 109:1014 110:605 111:711
112:298 113:402 114:552 115:667 116:958 117:666
118:822 119:1144 120:312 121:653 122:1603 123:964
124:1264 125:1229 128:207 129:165 130:163 131:572
132:103 133:21 134:205 135:48 136:214 137:134
138:297 139:114 140:461 141:244 142:387 143:414
144:479 145:64 146:447 147:211 148:612 149:247
150:153 151:189 152:340 153:182 154:3 155:397
156:196 157:323 158:138 159:386 160:309 161:193
162:304 163:153 164:499 165:365 166:530 167:433
168:731 169:151 170:846 171:78 172:1 173:1618
174:608 175:363 176:143 177:171 178:1002 180:888
181:23 182:479 183:231 184:343 185:1 186:1284
187:728 188:894 189:943 190:4958 192:5850 193:4987
194:3520 195:3052 196:1213 197:43 198:3527 199:3930
200:5490 201:1483 202:8189 203:8352 204:4158 205:2306
206:2582 207:2737 208:3961 209:3421 210:2591 211:1443
212:2114 213:1771 214:772 215:69 216:4909 217:1632
218:532 219:347 220:1195 221:480 222:312 223:216
End of report
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