Routing Table Report 08:00 +10GMT Mon 20 Jun, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 355383
Prefixes after maximum aggregation: 161423
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 178138
Total ASes present in the Internet Routing Table: 36590
Prefixes per ASN: 9.71
Origin-only ASes present in the Internet Routing Table: 31586
Origin ASes announcing only one prefix: 15207
Transit ASes present in the Internet Routing Table: 5004
Transit-only ASes present in the Internet Routing Table: 114
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: 2204
Unregistered ASNs in the Routing Table: 531
Number of 32-bit ASNs allocated by the RIRs: 1467
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2670
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 135
Number of addresses announced to Internet: 2489737728
Equivalent to 148 /8s, 102 /16s and 98 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.0
Total number of prefixes smaller than registry allocations: 146576
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85523
Total APNIC prefixes after maximum aggregation: 28812
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 82870
Unique aggregates announced from the APNIC address blocks: 36239
APNIC Region origin ASes present in the Internet Routing Table: 4434
APNIC Prefixes per ASN: 18.69
APNIC Region origin ASes announcing only one prefix: 1261
APNIC Region transit ASes present in the Internet Routing Table: 672
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: 620786432
Equivalent to 37 /8s, 0 /16s and 115 /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: 139666
Total ARIN prefixes after maximum aggregation: 71423
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 111932
Unique aggregates announced from the ARIN address blocks: 46243
ARIN Region origin ASes present in the Internet Routing Table: 14361
ARIN Prefixes per ASN: 7.79
ARIN Region origin ASes announcing only one prefix: 5501
ARIN Region transit ASes present in the Internet Routing Table: 1457
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 24
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 801931008
Equivalent to 47 /8s, 204 /16s and 127 /24s
Percentage of available ARIN address space announced: 63.7
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: 86107
Total RIPE prefixes after maximum aggregation: 48767
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 79542
Unique aggregates announced from the RIPE address blocks: 52475
RIPE Region origin ASes present in the Internet Routing Table: 15718
RIPE Prefixes per ASN: 5.06
RIPE Region origin ASes announcing only one prefix: 7862
RIPE Region transit ASes present in the Internet Routing Table: 2450
Average RIPE Region AS path length visible: 3.5
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: 477132032
Equivalent to 28 /8s, 112 /16s and 117 /24s
Percentage of available RIPE address space announced: 76.9
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: 32422
Total LACNIC prefixes after maximum aggregation: 7419
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 31825
Unique aggregates announced from the LACNIC address blocks: 16862
LACNIC Region origin ASes present in the Internet Routing Table: 1452
LACNIC Prefixes per ASN: 21.92
LACNIC Region origin ASes announcing only one prefix: 439
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: 84839680
Equivalent to 5 /8s, 14 /16s and 141 /24s
Percentage of available LACNIC address space announced: 56.2
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: 8269
Total AfriNIC prefixes after maximum aggregation: 2007
AfriNIC Deaggregation factor: 4.12
Prefixes being announced from the AfriNIC address blocks: 6420
Unique aggregates announced from the AfriNIC address blocks: 1964
AfriNIC Region origin ASes present in the Internet Routing Table: 462
AfriNIC Prefixes per ASN: 13.90
AfriNIC Region origin ASes announcing only one prefix: 144
AfriNIC Region transit ASes present in the Internet Routing Table: 104
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: 24249088
Equivalent to 1 /8s, 114 /16s and 3 /24s
Percentage of available AfriNIC address space announced: 36.1
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 1899 9492 620 Korea Telecom (KIX)
17974 1570 458 44 PT Telekomunikasi Indonesia
7545 1536 301 85 TPG Internet Pty Ltd
4755 1475 374 165 TATA Communications formerly
24560 1153 336 187 Bharti Airtel Ltd., Telemedia
7552 1143 1064 7 Vietel Corporation
9583 1079 80 510 Sify Limited
9829 1046 883 59 National Internet Backbone
4808 952 2007 279 CNCGROUP IP network China169
17488 947 182 100 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 3625 3819 257 BellSouth.net Inc.
18566 1912 365 236 Covad Communications Co.
1785 1799 681 122 PaeTec Communications, Inc.
4323 1659 1097 398 tw telecom holdings, inc.
6478 1641 298 276 AT&T Services, Inc.
20115 1524 1527 637 Charter Communications
19262 1493 4936 308 Verizon Online LLC
7029 1409 1030 205 Alltel Information Services,
7018 1374 7088 901 AT&T Services, Inc.
22773 1338 2897 85 Cox Communications 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
9116 540 326 31 Goldenlines main autonomous s
34984 524 107 182 BILISIM TELEKOM
6830 512 1780 320 UPC Broadband
3292 466 2078 399 TDC Data Networks
20940 463 135 355 Akamai Technologies European
29049 449 33 46 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 436 593 7 France Telecom Espana SA
3320 420 8151 367 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 1529 280 157 Types of queries are: POCs, o
8151 1248 2710 357 Uninet S.A. de C.V.
28573 1242 993 78 Types of queries are: POCs, o
7303 967 506 158 Telecom Argentina S.A.
6503 732 354 74 Axtel, S.A.B. de C.V.
14420 683 55 82 CORPORACION NACIONAL DE TELEC
22047 572 322 17 Types of queries are: POCs, o
3816 532 229 98 Types of queries are: POCs, o
7738 516 986 31 Telecomunicacoes da Bahia S.A
11172 494 100 85 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 793 147 35 LINKdotNET AS number
8452 790 445 11 TEDATA
15475 524 74 8 Nile Online
36992 304 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 215 12 11 Starcomms Nigeria Limited
24835 211 78 10 RAYA Telecom - Egypt
29571 192 17 11 Ci Telecom Autonomous system
16637 150 441 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 3625 3819 257 BellSouth.net Inc.
23456 2670 660 1451 32-bit ASN transition
18566 1912 365 236 Covad Communications Co.
4766 1899 9492 620 Korea Telecom (KIX)
1785 1799 681 122 PaeTec Communications, Inc.
4323 1659 1097 398 tw telecom holdings, inc.
6478 1641 298 276 AT&T Services, Inc.
17974 1570 458 44 PT Telekomunikasi Indonesia
7545 1536 301 85 TPG Internet Pty Ltd
10620 1529 280 157 Types of queries are: POCs, o
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 1799 1677 PaeTec Communications, Inc.
18566 1912 1676 Covad Communications Co.
17974 1570 1526 PT Telekomunikasi Indonesia
7545 1536 1451 TPG Internet Pty Ltd
10620 1529 1372 Types of queries are: POCs, o
6478 1641 1365 AT&T Services, Inc.
4755 1475 1310 TATA Communications formerly
4766 1899 1279 Korea Telecom (KIX)
4323 1659 1261 tw telecom holdings, inc.
22773 1338 1253 Cox Communications 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
27.0.128.0/17 7514 Media EXchange, Inc.
41.190.32.0/23 31856 CABSAS
41.190.34.0/23 31856 CABSAS
41.190.36.0/23 31856 CABSAS
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 /8:23 /9:12 /10:28 /11:81 /12:231
/13:462 /14:799 /15:1394 /16:11918 /17:5815 /18:9728
/19:19456 /20:26054 /21:25929 /22:34167 /23:32933 /24:185847
/25:13 /26:18 /27:26 /28:160 /29:104 /30:58
/31:0 /32:127
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2227 3625 BellSouth.net Inc.
18566 1869 1912 Covad Communications Co.
6478 1604 1641 AT&T Services, Inc.
10620 1419 1529 Types of queries are: POCs, o
23456 1327 2670 32-bit ASN transition
7029 1089 1409 Alltel Information Services,
11492 1087 1133 CABLE ONE, INC.
7011 1060 1160 Frontier Communications of Am
1785 1050 1799 PaeTec Communications, Inc.
22773 855 1338 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:286 2:39 4:16 5:1 6:3 8:335
12:1973 13:1 14:445 15:15 16:3 17:8
20:10 23:11 24:1648 27:790 31:444 32:59
33:4 34:2 37:1 38:730 40:103 41:2519
42:2 44:3 46:975 47:3 49:188 50:415
52:13 54:2 55:4 56:2 57:30 58:801
59:468 60:385 61:1019 62:1049 63:1930 64:3917
65:2272 66:3849 67:1891 68:1082 69:3039 70:720
71:376 72:1886 74:2375 75:318 76:337 77:877
78:705 79:465 80:1108 81:849 82:498 83:457
84:670 85:1083 86:550 87:758 88:334 89:1520
90:208 91:3851 92:530 93:1040 94:1299 95:836
96:441 97:249 98:877 99:36 101:64 103:77
106:10 107:14 108:71 109:1002 110:607 111:702
112:293 113:398 114:541 115:661 116:951 117:674
118:789 119:1136 120:309 121:645 122:1624 123:938
124:1260 125:1223 128:209 129:168 130:159 131:574
132:102 133:21 134:206 135:48 136:214 137:135
138:300 139:112 140:460 141:238 142:387 143:406
144:486 145:54 146:441 147:211 148:590 149:246
150:164 151:190 152:329 153:180 154:3 155:398
156:192 157:323 158:138 159:382 160:315 161:200
162:310 163:152 164:502 165:350 166:533 167:424
168:734 169:154 170:829 171:77 172:1 173:1621
174:602 175:361 176:135 177:159 178:999 180:885
181:19 182:468 183:222 184:302 185:1 186:1241
187:720 188:860 189:906 190:4896 192:5807 193:4961
194:3485 195:3036 196:1229 197:24 198:3536 199:3913
200:5443 201:1497 202:8087 203:8311 204:4114 205:2319
206:2596 207:2742 208:3928 209:3436 210:2642 211:1423
212:2115 213:1726 214:761 215:69 216:4903 217:1639
218:535 219:362 220:1195 221:475 222:311 223:156
End of report
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