Routing Table Report 08:00 +10GMT Sun 08 May, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 351509
Prefixes after maximum aggregation: 159257
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 176014
Total ASes present in the Internet Routing Table: 36290
Prefixes per ASN: 9.69
Origin-only ASes present in the Internet Routing Table: 31367
Origin ASes announcing only one prefix: 15099
Transit ASes present in the Internet Routing Table: 4923
Transit-only ASes present in the Internet Routing Table: 117
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 27
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 1973
Unregistered ASNs in the Routing Table: 398
Number of 32-bit ASNs allocated by the RIRs: 1335
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2384
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 149
Number of addresses announced to Internet: 2440248832
Equivalent to 145 /8s, 115 /16s and 62 /24s
Percentage of available address space announced: 65.8
Percentage of allocated address space announced: 65.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 90.7
Total number of prefixes smaller than registry allocations: 144555
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85020
Total APNIC prefixes after maximum aggregation: 28582
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 82249
Unique aggregates announced from the APNIC address blocks: 36825
APNIC Region origin ASes present in the Internet Routing Table: 4383
APNIC Prefixes per ASN: 18.77
APNIC Region origin ASes announcing only one prefix: 1244
APNIC Region transit ASes present in the Internet Routing Table: 670
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: 612328448
Equivalent to 36 /8s, 127 /16s and 100 /24s
Percentage of available APNIC address space announced: 77.7
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: 139023
Total ARIN prefixes after maximum aggregation: 70758
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 111712
Unique aggregates announced from the ARIN address blocks: 45329
ARIN Region origin ASes present in the Internet Routing Table: 14287
ARIN Prefixes per ASN: 7.82
ARIN Region origin ASes announcing only one prefix: 5481
ARIN Region transit ASes present in the Internet Routing Table: 1428
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: 799937792
Equivalent to 47 /8s, 174 /16s and 21 /24s
Percentage of available ARIN address space announced: 63.6
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: 84400
Total RIPE prefixes after maximum aggregation: 48008
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 77823
Unique aggregates announced from the RIPE address blocks: 51241
RIPE Region origin ASes present in the Internet Routing Table: 15569
RIPE Prefixes per ASN: 5.00
RIPE Region origin ASes announcing only one prefix: 7803
RIPE Region transit ASes present in the Internet Routing Table: 2418
Average RIPE Region AS path length visible: 3.6
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: 468211712
Equivalent to 27 /8s, 232 /16s and 88 /24s
Percentage of available RIPE address space announced: 75.4
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: 32224
Total LACNIC prefixes after maximum aggregation: 7378
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 31421
Unique aggregates announced from the LACNIC address blocks: 16630
LACNIC Region origin ASes present in the Internet Routing Table: 1436
LACNIC Prefixes per ASN: 21.88
LACNIC Region origin ASes announcing only one prefix: 437
LACNIC Region transit ASes present in the Internet Routing Table: 251
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: 83123968
Equivalent to 4 /8s, 244 /16s and 95 /24s
Percentage of available LACNIC address space announced: 55.1
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: 7784
Total AfriNIC prefixes after maximum aggregation: 1863
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6133
Unique aggregates announced from the AfriNIC address blocks: 1906
AfriNIC Region origin ASes present in the Internet Routing Table: 447
AfriNIC Prefixes per ASN: 13.72
AfriNIC Region origin ASes announcing only one prefix: 134
AfriNIC Region transit ASes present in the Internet Routing Table: 97
Average AfriNIC Region AS path length visible: 3.5
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: 23042304
Equivalent to 1 /8s, 95 /16s and 153 /24s
Percentage of available AfriNIC address space announced: 34.3
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 1890 9485 612 Korea Telecom (KIX)
7545 1566 301 87 TPG Internet Pty Ltd
17974 1500 470 34 PT Telekomunikasi Indonesia
4755 1458 634 166 TATA Communications formerly
7552 1203 1064 7 Vietel Corporation
24560 1151 336 184 Bharti Airtel Ltd., Telemedia
9583 1058 78 493 Sify Limited
9829 1039 874 51 National Internet Backbone
4808 950 2017 277 CNCGROUP IP network China169
17488 936 164 100 Hathway IP Over Cable Interne
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 3647 3822 256 BellSouth.net Inc.
4323 2581 1104 400 tw telecom holdings, inc.
1785 1788 681 127 PaeTec Communications, Inc.
18566 1732 346 226 Covad Communications Co.
6478 1668 313 51 AT&T Services, Inc.
20115 1531 1536 636 Charter Communications
19262 1496 4949 298 Verizon Online LLC
7018 1370 6960 897 AT&T Services, Inc.
22773 1328 2897 87 Cox Communications Inc.
2386 1266 536 908 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 30 Goldenlines main autonomous s
6830 517 1780 320 UPC Broadband
34984 508 106 184 BILISIM TELEKOM
3292 457 1997 391 TDC Data Networks
20940 450 132 345 Akamai Technologies European
8866 444 134 26 Bulgarian Telecommunication C
29049 443 33 43 AzerSat LLC.
3320 422 7609 367 Deutsche Telekom AG
12479 417 577 6 France Telecom Espana SA
8551 407 356 39 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 1458 270 155 Types of queries are: POCs, o
28573 1280 990 89 Types of queries are: POCs, o
8151 1235 2681 356 Uninet S.A. de C.V.
7303 906 469 138 Telecom Argentina S.A.
6503 792 354 74 Axtel, S.A.B. de C.V.
14420 665 53 91 CORPORACION NACIONAL DE TELEC
22047 557 310 15 Types of queries are: POCs, o
3816 518 226 98 Types of queries are: POCs, o
11172 493 100 83 Alestra, S. de R.L. de C.V.
14117 492 47 44 Telefonica del Sur 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
8452 877 445 11 TEDATA
24863 779 147 35 LINKdotNET AS number
15475 428 90 8 Nile Online
36992 287 331 17 Etisalat MISR
3741 266 985 226 The Internet Solution
6713 240 215 13 Itissalat Al-MAGHRIB
33776 213 12 11 Starcomms Nigeria Limited
24835 209 78 10 RAYA Telecom - Egypt
29571 161 17 11 Ci Telecom Autonomous system
16637 148 441 86 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 3647 3822 256 BellSouth.net Inc.
4323 2581 1104 400 tw telecom holdings, inc.
23456 2384 672 1287 32-bit ASN transition
4766 1890 9485 612 Korea Telecom (KIX)
1785 1788 681 127 PaeTec Communications, Inc.
18566 1732 346 226 Covad Communications Co.
6478 1668 313 51 AT&T Services, Inc.
7545 1566 301 87 TPG Internet Pty Ltd
20115 1531 1536 636 Charter Communications
17974 1500 470 34 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
4323 2581 2181 tw telecom holdings, inc.
1785 1788 1661 PaeTec Communications, Inc.
6478 1668 1617 AT&T Services, Inc.
18566 1732 1506 Covad Communications Co.
7545 1566 1479 TPG Internet Pty Ltd
17974 1500 1466 PT Telekomunikasi Indonesia
10620 1458 1303 Types of queries are: POCs, o
4755 1458 1292 TATA Communications formerly
4766 1890 1278 Korea Telecom (KIX)
11492 1259 1244 CABLE ONE, 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
31.210.248.0/21 35706 Net at Once
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
45.127.0.0/16 13767 DataBank Holdings, Ltd.
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 /10:28 /11:78 /12:223
/13:458 /14:789 /15:1390 /16:11658 /17:5760 /18:9623
/19:19351 /20:25626 /21:25707 /22:33792 /23:32440 /24:184089
/25:11 /26:17 /27:24 /28:158 /29:93 /30:49
/31:0 /32:112
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2247 3647 BellSouth.net Inc.
18566 1700 1732 Covad Communications Co.
6478 1622 1668 AT&T Services, Inc.
10620 1348 1458 Types of queries are: POCs, o
4323 1287 2581 tw telecom holdings, inc.
11492 1208 1259 CABLE ONE, INC.
23456 1182 2384 32-bit ASN transition
7011 1062 1162 Frontier Communications of Am
1785 1054 1788 PaeTec Communications, Inc.
22773 845 1328 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:263 2:55 4:14 5:1 6:3 8:353
12:1990 13:1 14:442 15:15 16:3 17:8
20:10 23:6 24:1623 27:734 31:304 32:55
33:3 34:2 37:1 38:760 40:101 41:2480
42:4 44:3 46:908 47:4 49:172 50:388
52:13 55:3 56:2 57:28 58:794 59:477
60:385 61:1066 62:996 63:1918 64:3900 65:2304
66:4305 67:1873 68:1079 69:2969 70:698 71:347
72:1884 73:1 74:2333 75:302 76:338 77:851
78:687 79:463 80:1077 81:814 82:499 83:447
84:632 85:1074 86:575 87:753 88:326 89:1591
90:192 91:3713 92:510 93:1063 94:1269 95:803
96:478 97:255 98:840 99:35 101:61 103:9
107:6 108:85 109:947 110:580 111:702 112:311
113:396 114:533 115:649 116:928 117:676 118:778
119:1093 120:303 121:650 122:1616 123:1064 124:1248
125:1206 128:207 129:158 130:159 131:556 132:100
133:19 134:210 135:49 136:211 137:140 138:302
139:110 140:458 141:238 142:384 143:397 144:483
145:50 146:430 147:206 148:579 149:242 150:163
151:187 152:310 153:179 154:2 155:390 156:186
157:323 158:130 159:376 160:314 161:197 162:278
163:154 164:498 165:347 166:513 167:426 168:708
169:152 170:782 171:76 172:1 173:1542 174:547
175:357 177:118 178:859 180:810 181:19 182:426
183:208 184:260 185:1 186:1152 187:796 188:847
189:939 190:4834 192:5739 193:4843 194:3465 195:2971
196:1205 197:16 198:3509 199:3889 200:5501 201:1502
202:8111 203:8315 204:4062 205:2295 206:2643 207:2965
208:3950 209:3451 210:2633 211:1366 212:1976 213:1723
214:725 215:65 216:4866 217:1661 218:554 219:369
220:1199 221:462 222:310 223:144
End of report
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