Routing Table Report 08:00 +10GMT Sat 25 Jun, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 356076
Prefixes after maximum aggregation: 162126
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 178702
Total ASes present in the Internet Routing Table: 36638
Prefixes per ASN: 9.72
Origin-only ASes present in the Internet Routing Table: 31610
Origin ASes announcing only one prefix: 15231
Transit ASes present in the Internet Routing Table: 5028
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: 2239
Unregistered ASNs in the Routing Table: 548
Number of 32-bit ASNs allocated by the RIRs: 1493
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2721
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 137
Number of addresses announced to Internet: 2492521472
Equivalent to 148 /8s, 144 /16s and 220 /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: 146832
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85344
Total APNIC prefixes after maximum aggregation: 28851
APNIC Deaggregation factor: 2.96
Prefixes being announced from the APNIC address blocks: 83061
Unique aggregates announced from the APNIC address blocks: 36282
APNIC Region origin ASes present in the Internet Routing Table: 4442
APNIC Prefixes per ASN: 18.70
APNIC Region origin ASes announcing only one prefix: 1263
APNIC Region transit ASes present in the Internet Routing Table: 677
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: 621147136
Equivalent to 37 /8s, 5 /16s and 244 /24s
Percentage of available APNIC address space announced: 78.8
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: 139998
Total ARIN prefixes after maximum aggregation: 71892
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 112254
Unique aggregates announced from the ARIN address blocks: 46498
ARIN Region origin ASes present in the Internet Routing Table: 14361
ARIN Prefixes per ASN: 7.82
ARIN Region origin ASes announcing only one prefix: 5500
ARIN Region transit ASes present in the Internet Routing Table: 1452
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: 802463488
Equivalent to 47 /8s, 212 /16s and 159 /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: 86529
Total RIPE prefixes after maximum aggregation: 48896
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 79894
Unique aggregates announced from the RIPE address blocks: 52621
RIPE Region origin ASes present in the Internet Routing Table: 15747
RIPE Prefixes per ASN: 5.07
RIPE Region origin ASes announcing only one prefix: 7881
RIPE Region transit ASes present in the Internet Routing Table: 2470
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: 478256896
Equivalent to 28 /8s, 129 /16s and 159 /24s
Percentage of available RIPE address space announced: 77.0
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: 32406
Total LACNIC prefixes after maximum aggregation: 7445
LACNIC Deaggregation factor: 4.35
Prefixes being announced from the LACNIC address blocks: 31819
Unique aggregates announced from the LACNIC address blocks: 16897
LACNIC Region origin ASes present in the Internet Routing Table: 1458
LACNIC Prefixes per ASN: 21.82
LACNIC Region origin ASes announcing only one prefix: 446
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: 85542656
Equivalent to 5 /8s, 25 /16s and 71 /24s
Percentage of available LACNIC address space announced: 56.7
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: 8345
Total AfriNIC prefixes after maximum aggregation: 2011
AfriNIC Deaggregation factor: 4.15
Prefixes being announced from the AfriNIC address blocks: 6496
Unique aggregates announced from the AfriNIC address blocks: 1981
AfriNIC Region origin ASes present in the Internet Routing Table: 462
AfriNIC Prefixes per ASN: 14.06
AfriNIC Region origin ASes announcing only one prefix: 141
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: 24311808
Equivalent to 1 /8s, 114 /16s and 248 /24s
Percentage of available AfriNIC address space announced: 36.2
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 1901 9492 623 Korea Telecom (KIX)
17974 1562 460 45 PT Telekomunikasi Indonesia
7545 1540 301 83 TPG Internet Pty Ltd
4755 1476 374 166 TATA Communications formerly
24560 1153 336 187 Bharti Airtel Ltd., Telemedia
9583 1079 80 510 Sify Limited
9829 1043 886 64 National Internet Backbone
17488 955 183 104 Hathway IP Over Cable Interne
4808 952 2008 279 CNCGROUP IP network China169
18101 933 116 139 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 3626 3819 250 BellSouth.net Inc.
18566 1912 365 240 Covad Communications Co.
1785 1800 681 122 PaeTec Communications, Inc.
4323 1661 1097 399 tw telecom holdings, inc.
20115 1586 1531 635 Charter Communications
6478 1499 276 522 AT&T Services, Inc.
19262 1451 4805 372 Verizon Online LLC
7029 1407 1031 207 Alltel Information Services,
7018 1373 7086 905 AT&T Services, Inc.
22773 1345 2897 87 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 530 107 183 BILISIM TELEKOM
6830 514 1780 320 UPC Broadband
3292 469 2080 404 TDC Data Networks
20940 468 137 360 Akamai Technologies European
8866 445 134 26 Bulgarian Telecommunication C
29049 444 33 45 AzerSat LLC.
12479 436 593 7 France Telecom Espana SA
3320 419 8151 366 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 1532 281 157 Types of queries are: POCs, o
8151 1252 2718 359 Uninet S.A. de C.V.
28573 1252 993 78 Types of queries are: POCs, o
7303 969 506 159 Telecom Argentina S.A.
6503 731 354 74 Axtel, S.A.B. de C.V.
14420 683 55 82 CORPORACION NACIONAL DE TELEC
22047 576 322 17 Types of queries are: POCs, o
3816 530 231 93 Types of queries are: POCs, o
7738 516 986 31 Telecomunicacoes da Bahia S.A
11172 495 100 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 795 147 35 LINKdotNET AS number
8452 789 445 11 TEDATA
15475 525 74 8 Nile Online
36992 318 415 14 Etisalat MISR
3741 261 937 223 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 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 3626 3819 250 BellSouth.net Inc.
23456 2721 659 1468 32-bit ASN transition
18566 1912 365 240 Covad Communications Co.
4766 1901 9492 623 Korea Telecom (KIX)
1785 1800 681 122 PaeTec Communications, Inc.
4323 1661 1097 399 tw telecom holdings, inc.
20115 1586 1531 635 Charter Communications
17974 1562 460 45 PT Telekomunikasi Indonesia
7545 1540 301 83 TPG Internet Pty Ltd
10620 1532 281 157 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 1800 1678 PaeTec Communications, Inc.
18566 1912 1672 Covad Communications Co.
17974 1562 1517 PT Telekomunikasi Indonesia
7545 1540 1457 TPG Internet Pty Ltd
10620 1532 1375 Types of queries are: POCs, o
4755 1476 1310 TATA Communications formerly
4766 1901 1278 Korea Telecom (KIX)
4323 1661 1262 tw telecom holdings, inc.
22773 1345 1258 Cox Communications Inc.
23456 2721 1253 32-bit ASN transition
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
/13:461 /14:799 /15:1395 /16:11930 /17:5836 /18:9675
/19:19503 /20:25805 /21:26005 /22:34256 /23:33078 /24:186447
/25:13 /26:18 /27:26 /28:160 /29:102 /30:59
/31:0 /32:133
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2229 3626 BellSouth.net Inc.
18566 1868 1912 Covad Communications Co.
6478 1466 1499 AT&T Services, Inc.
10620 1427 1532 Types of queries are: POCs, o
23456 1342 2721 32-bit ASN transition
11492 1087 1133 CABLE ONE, INC.
7029 1086 1407 Alltel Information Services,
7011 1058 1159 Frontier Communications of Am
1785 1050 1800 PaeTec Communications, Inc.
22773 860 1345 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:295 2:42 4:16 5:1 6:3 8:336
12:1976 13:1 14:444 15:15 16:3 17:8
20:10 23:12 24:1653 27:804 31:479 32:59
33:4 34:2 37:1 38:734 39:3 40:103
41:2549 42:2 44:3 46:982 47:3 49:196
50:413 52:13 54:2 55:3 56:2 57:31
58:810 59:469 60:384 61:1023 62:1054 63:1933
64:3920 65:2286 66:3870 67:1902 68:1080 69:3046
70:754 71:388 72:1888 74:2377 75:318 76:339
77:883 78:713 79:473 80:1108 81:838 82:493
83:459 84:670 85:1079 86:551 87:761 88:334
89:1524 90:209 91:3872 92:536 93:1049 94:1319
95:837 96:440 97:253 98:881 99:36 101:71
103:89 106:10 107:16 108:70 109:1009 110:611
111:696 112:294 113:400 114:543 115:659 116:936
117:664 118:810 119:1132 120:311 121:646 122:1626
123:946 124:1267 125:1211 128:209 129:166 130:161
131:574 132:104 133:21 134:206 135:48 136:212
137:135 138:300 139:112 140:459 141:239 142:387
143:420 144:486 145:54 146:445 147:213 148:589
149:247 150:161 151:190 152:330 153:180 154:3
155:398 156:192 157:321 158:138 159:385 160:312
161:200 162:307 163:152 164:506 165:352 166:534
167:433 168:734 169:156 170:842 171:78 172:1
173:1618 174:607 175:358 176:139 177:151 178:1005
180:887 181:19 182:471 183:222 184:306 185:1
186:1229 187:732 188:875 189:913 190:4868 192:5820
193:4972 194:3484 195:3041 196:1227 197:41 198:3533
199:3926 200:5448 201:1500 202:8120 203:8336 204:4127
205:2319 206:2597 207:2737 208:3945 209:3446 210:2632
211:1451 212:2114 213:1739 214:769 215:69 216:4908
217:1635 218:537 219:358 220:1200 221:474 222:311
223:159
End of report
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