Routing Table Report 08:00 +10GMT Tue 03 May, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 351179
Prefixes after maximum aggregation: 159186
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 175759
Total ASes present in the Internet Routing Table: 36250
Prefixes per ASN: 9.69
Origin-only ASes present in the Internet Routing Table: 31343
Origin ASes announcing only one prefix: 15074
Transit ASes present in the Internet Routing Table: 4907
Transit-only ASes present in the Internet Routing Table: 118
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 27
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 1945
Unregistered ASNs in the Routing Table: 387
Number of 32-bit ASNs allocated by the RIRs: 1321
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2306
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 145
Number of addresses announced to Internet: 2438078720
Equivalent to 145 /8s, 82 /16s and 33 /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: 90.6
Total number of prefixes smaller than registry allocations: 144490
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 84869
Total APNIC prefixes after maximum aggregation: 28580
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 82130
Unique aggregates announced from the APNIC address blocks: 36883
APNIC Region origin ASes present in the Internet Routing Table: 4373
APNIC Prefixes per ASN: 18.78
APNIC Region origin ASes announcing only one prefix: 1239
APNIC Region transit ASes present in the Internet Routing Table: 669
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: 610860544
Equivalent to 36 /8s, 104 /16s and 254 /24s
Percentage of available APNIC address space announced: 77.5
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: 138884
Total ARIN prefixes after maximum aggregation: 70802
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 111532
Unique aggregates announced from the ARIN address blocks: 45224
ARIN Region origin ASes present in the Internet Routing Table: 14268
ARIN Prefixes per ASN: 7.82
ARIN Region origin ASes announcing only one prefix: 5463
ARIN Region transit ASes present in the Internet Routing Table: 1415
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: 799693312
Equivalent to 47 /8s, 170 /16s and 90 /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: 84534
Total RIPE prefixes after maximum aggregation: 47951
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 77687
Unique aggregates announced from the RIPE address blocks: 51156
RIPE Region origin ASes present in the Internet Routing Table: 15558
RIPE Prefixes per ASN: 4.99
RIPE Region origin ASes announcing only one prefix: 7802
RIPE Region transit ASes present in the Internet Routing Table: 2416
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: 467677696
Equivalent to 27 /8s, 224 /16s and 50 /24s
Percentage of available RIPE address space announced: 75.3
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: 32162
Total LACNIC prefixes after maximum aggregation: 7383
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 31333
Unique aggregates announced from the LACNIC address blocks: 16550
LACNIC Region origin ASes present in the Internet Routing Table: 1434
LACNIC Prefixes per ASN: 21.85
LACNIC Region origin ASes announcing only one prefix: 432
LACNIC Region transit ASes present in the Internet Routing Table: 250
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: 82940416
Equivalent to 4 /8s, 241 /16s and 146 /24s
Percentage of available LACNIC address space announced: 54.9
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: 7752
Total AfriNIC prefixes after maximum aggregation: 1854
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6107
Unique aggregates announced from the AfriNIC address blocks: 1912
AfriNIC Region origin ASes present in the Internet Routing Table: 448
AfriNIC Prefixes per ASN: 13.63
AfriNIC Region origin ASes announcing only one prefix: 138
AfriNIC Region transit ASes present in the Internet Routing Table: 95
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 23374592
Equivalent to 1 /8s, 100 /16s and 171 /24s
Percentage of available AfriNIC address space announced: 34.8
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 1874 9482 602 Korea Telecom (KIX)
17974 1513 470 34 PT Telekomunikasi Indonesia
7545 1488 301 83 TPG Internet Pty Ltd
4755 1458 634 166 TATA Communications formerly
7552 1210 1064 7 Vietel Corporation
24560 1152 336 184 Bharti Airtel Ltd., Telemedia
9583 1057 78 493 Sify Limited
9829 1001 872 54 National Internet Backbone
4808 948 2020 277 CNCGROUP IP network China169
17488 943 165 100 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 2603 1102 397 tw telecom holdings, inc.
1785 1788 681 127 PaeTec Communications, Inc.
18566 1737 340 231 Covad Communications Co.
6478 1658 311 46 AT&T Services, Inc.
20115 1536 1552 639 Charter Communications
19262 1481 4920 328 Verizon Online LLC
7018 1365 6943 897 AT&T Services, Inc.
22773 1299 2865 84 Cox Communications Inc.
2386 1266 519 909 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 508 106 185 BILISIM TELEKOM
3292 457 1997 391 TDC Data Networks
29049 450 33 48 AzerSat LLC.
20940 446 131 341 Akamai Technologies European
8866 445 133 26 Bulgarian Telecommunication C
3320 422 7609 367 Deutsche Telekom AG
12479 408 577 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 1448 268 160 Types of queries are: POCs, o
28573 1259 986 92 Types of queries are: POCs, o
8151 1229 2671 359 Uninet S.A. de C.V.
7303 904 466 137 Telecom Argentina S.A.
6503 852 354 74 Axtel, S.A.B. de C.V.
14420 665 53 91 CORPORACION NACIONAL DE TELEC
22047 564 310 15 Types of queries are: POCs, o
3816 518 226 98 Types of queries are: POCs, o
14117 492 46 43 Telefonica del Sur S.A.
11172 486 99 81 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
8452 882 445 11 TEDATA
24863 777 147 35 LINKdotNET AS number
15475 429 90 8 Nile Online
36992 295 415 13 Etisalat MISR
3741 267 985 227 The Internet Solution
6713 240 215 13 Itissalat Al-MAGHRIB
33776 221 12 9 Starcomms Nigeria Limited
24835 207 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 2603 1102 397 tw telecom holdings, inc.
23456 2306 661 1261 32-bit ASN transition
4766 1874 9482 602 Korea Telecom (KIX)
1785 1788 681 127 PaeTec Communications, Inc.
18566 1737 340 231 Covad Communications Co.
6478 1658 311 46 AT&T Services, Inc.
20115 1536 1552 639 Charter Communications
17974 1513 470 34 PT Telekomunikasi Indonesia
7545 1488 301 83 TPG Internet Pty Ltd
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 2603 2206 tw telecom holdings, inc.
1785 1788 1661 PaeTec Communications, Inc.
6478 1658 1612 AT&T Services, Inc.
18566 1737 1506 Covad Communications Co.
17974 1513 1479 PT Telekomunikasi Indonesia
7545 1488 1405 TPG Internet Pty Ltd
4755 1458 1292 TATA Communications formerly
10620 1448 1288 Types of queries are: POCs, o
4766 1874 1272 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
31.208.0.0/16 29518 Bredband2 AB
31.209.0.0/18 29518 Bredband2 AB
31.209.80.0/20 50629 LWLcom GmbH
41.222.79.0/24 36938 >>UNKNOWN<<
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 /11:77 /12:221
/13:459 /14:789 /15:1386 /16:11641 /17:5753 /18:9578
/19:19290 /20:25626 /21:25631 /22:33676 /23:32401 /24:184128
/25:11 /26:17 /27:23 /28:158 /29:93 /30:52
/31:0 /32:108
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2247 3647 BellSouth.net Inc.
18566 1711 1737 Covad Communications Co.
6478 1612 1658 AT&T Services, Inc.
10620 1338 1448 Types of queries are: POCs, o
4323 1307 2603 tw telecom holdings, inc.
11492 1208 1259 CABLE ONE, INC.
23456 1161 2306 32-bit ASN transition
1785 1054 1788 PaeTec Communications, Inc.
7011 1036 1135 Frontier Communications of Am
22773 843 1299 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 2:53 4:14 5:1 6:3 8:351
12:1983 13:1 14:439 15:15 16:3 17:8
20:10 23:5 24:1615 27:725 31:237 32:55
33:3 34:2 37:1 38:761 40:101 41:2449
42:5 44:3 46:885 47:4 49:170 50:376
52:13 55:5 56:2 57:29 58:791 59:479
60:368 61:1090 62:1001 63:1924 64:3915 65:2315
66:4342 67:1867 68:1079 69:2965 70:696 71:346
72:1891 73:1 74:2344 75:302 76:338 77:836
78:691 79:463 80:1095 81:817 82:498 83:452
84:649 85:1076 86:562 87:761 88:323 89:1591
90:183 91:3719 92:505 93:1051 94:1267 95:797
96:473 97:255 98:830 99:35 101:61 103:5
106:1 107:8 108:83 109:946 110:552 111:700
112:313 113:396 114:523 115:677 116:936 117:680
118:778 119:1128 120:304 121:650 122:1615 123:1060
124:1249 125:1207 128:209 129:158 130:166 131:561
132:101 133:19 134:209 135:49 136:211 137:139
138:302 139:111 140:455 141:238 142:384 143:399
144:485 145:52 146:437 147:201 148:582 149:242
150:163 151:187 152:307 153:179 154:2 155:395
156:187 157:324 158:132 159:376 160:313 161:204
162:277 163:154 164:494 165:333 166:510 167:427
168:720 169:152 170:777 171:76 172:1 173:1537
174:537 175:349 177:82 178:857 180:810 181:16
182:423 183:204 184:256 185:1 186:1146 187:810
188:987 189:972 190:4828 192:5739 193:4844 194:3468
195:2972 196:1206 197:16 198:3510 199:3884 200:5499
201:1502 202:8115 203:8290 204:4062 205:2295 206:2651
207:2960 208:3944 209:3455 210:2653 211:1382 212:1993
213:1701 214:728 215:67 216:4853 217:1645 218:551
219:372 220:1195 221:468 222:306 223:142
End of report
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