Routing Table Report 08:00 +10GMT Thu 23 Jun, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 355869
Prefixes after maximum aggregation: 161596
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 178606
Total ASes present in the Internet Routing Table: 36620
Prefixes per ASN: 9.72
Origin-only ASes present in the Internet Routing Table: 31590
Origin ASes announcing only one prefix: 15218
Transit ASes present in the Internet Routing Table: 5030
Transit-only ASes present in the Internet Routing Table: 115
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: 2221
Unregistered ASNs in the Routing Table: 539
Number of 32-bit ASNs allocated by the RIRs: 1475
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2693
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 142
Number of addresses announced to Internet: 2493067776
Equivalent to 148 /8s, 153 /16s and 50 /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: 91.0
Total number of prefixes smaller than registry allocations: 146842
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85468
Total APNIC prefixes after maximum aggregation: 28819
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 82890
Unique aggregates announced from the APNIC address blocks: 36190
APNIC Region origin ASes present in the Internet Routing Table: 4441
APNIC Prefixes per ASN: 18.66
APNIC Region origin ASes announcing only one prefix: 1261
APNIC Region transit ASes present in the Internet Routing Table: 675
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: 621133312
Equivalent to 37 /8s, 5 /16s and 190 /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: 139933
Total ARIN prefixes after maximum aggregation: 71442
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 112147
Unique aggregates announced from the ARIN address blocks: 46532
ARIN Region origin ASes present in the Internet Routing Table: 14359
ARIN Prefixes per ASN: 7.81
ARIN Region origin ASes announcing only one prefix: 5499
ARIN Region transit ASes present in the Internet Routing Table: 1459
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: 802857728
Equivalent to 47 /8s, 218 /16s and 163 /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: 86305
Total RIPE prefixes after maximum aggregation: 48880
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 79736
Unique aggregates announced from the RIPE address blocks: 52606
RIPE Region origin ASes present in the Internet Routing Table: 15736
RIPE Prefixes per ASN: 5.07
RIPE Region origin ASes announcing only one prefix: 7872
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: 478226944
Equivalent to 28 /8s, 129 /16s and 42 /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: 32437
Total LACNIC prefixes after maximum aggregation: 7447
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 31847
Unique aggregates announced from the LACNIC address blocks: 16881
LACNIC Region origin ASes present in the Internet Routing Table: 1456
LACNIC Prefixes per ASN: 21.87
LACNIC Region origin ASes announcing only one prefix: 442
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: 85524736
Equivalent to 5 /8s, 25 /16s and 1 /24s
Percentage of available LACNIC address space announced: 56.6
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: 8306
Total AfriNIC prefixes after maximum aggregation: 1999
AfriNIC Deaggregation factor: 4.16
Prefixes being announced from the AfriNIC address blocks: 6464
Unique aggregates announced from the AfriNIC address blocks: 1970
AfriNIC Region origin ASes present in the Internet Routing Table: 464
AfriNIC Prefixes per ASN: 13.93
AfriNIC Region origin ASes announcing only one prefix: 144
AfriNIC Region transit ASes present in the Internet Routing Table: 102
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: 24341248
Equivalent to 1 /8s, 115 /16s and 107 /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 1900 9492 622 Korea Telecom (KIX)
17974 1566 459 44 PT Telekomunikasi Indonesia
7545 1541 301 85 TPG Internet Pty Ltd
4755 1478 374 166 TATA Communications formerly
24560 1153 336 187 Bharti Airtel Ltd., Telemedia
9583 1079 80 510 Sify Limited
7552 1061 1061 10 Vietel Corporation
9829 1034 878 68 National Internet Backbone
4808 952 2008 279 CNCGROUP IP network China169
17488 950 182 103 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 251 BellSouth.net Inc.
18566 1911 364 239 Covad Communications Co.
1785 1800 681 122 PaeTec Communications, Inc.
4323 1661 1097 399 tw telecom holdings, inc.
6478 1641 298 276 AT&T Services, Inc.
20115 1523 1527 633 Charter Communications
19262 1492 4920 307 Verizon Online LLC
7029 1408 1031 207 Alltel Information Services,
7018 1373 7087 902 AT&T Services, Inc.
22773 1341 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 528 107 182 BILISIM TELEKOM
6830 515 1780 321 UPC Broadband
3292 470 2080 405 TDC Data Networks
20940 466 137 358 Akamai Technologies European
29049 447 33 46 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 438 593 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 1524 280 156 Types of queries are: POCs, o
8151 1252 2716 356 Uninet S.A. de C.V.
28573 1252 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 573 322 17 Types of queries are: POCs, o
3816 531 229 98 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 794 147 35 LINKdotNET AS number
8452 790 445 11 TEDATA
15475 525 74 8 Nile Online
36992 309 415 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 3625 3819 251 BellSouth.net Inc.
23456 2693 665 1458 32-bit ASN transition
18566 1911 364 239 Covad Communications Co.
4766 1900 9492 622 Korea Telecom (KIX)
1785 1800 681 122 PaeTec Communications, Inc.
4323 1661 1097 399 tw telecom holdings, inc.
6478 1641 298 276 AT&T Services, Inc.
17974 1566 459 44 PT Telekomunikasi Indonesia
7545 1541 301 85 TPG Internet Pty Ltd
10620 1524 280 156 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 1911 1672 Covad Communications Co.
17974 1566 1522 PT Telekomunikasi Indonesia
7545 1541 1456 TPG Internet Pty Ltd
10620 1524 1368 Types of queries are: POCs, o
6478 1641 1365 AT&T Services, Inc.
4755 1478 1312 TATA Communications formerly
4766 1900 1278 Korea Telecom (KIX)
4323 1661 1262 tw telecom holdings, inc.
22773 1341 1254 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
/13:461 /14:799 /15:1395 /16:11945 /17:5837 /18:9725
/19:19495 /20:26009 /21:25993 /22:34198 /23:33036 /24:186095
/25:13 /26:18 /27:26 /28:160 /29:105 /30:58
/31:0 /32:126
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2227 3625 BellSouth.net Inc.
18566 1868 1911 Covad Communications Co.
6478 1604 1641 AT&T Services, Inc.
10620 1419 1524 Types of queries are: POCs, o
23456 1333 2693 32-bit ASN transition
11492 1089 1135 CABLE ONE, INC.
7029 1086 1408 Alltel Information Services,
7011 1060 1161 Frontier Communications of Am
1785 1050 1800 PaeTec Communications, Inc.
22773 856 1341 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:292 2:42 4:16 5:1 6:3 8:336
12:1973 13:1 14:448 15:15 16:3 17:8
20:10 23:11 24:1653 27:782 31:473 32:59
33:4 34:2 37:1 38:734 39:3 40:103
41:2535 42:2 44:3 46:968 47:3 49:191
50:415 52:13 54:2 55:4 56:2 57:31
58:792 59:469 60:384 61:1020 62:1051 63:1930
64:3915 65:2284 66:3868 67:1901 68:1083 69:3036
70:752 71:375 72:1887 74:2374 75:317 76:339
77:881 78:703 79:467 80:1112 81:843 82:499
83:459 84:669 85:1077 86:552 87:758 88:335
89:1528 90:210 91:3863 92:535 93:1049 94:1309
95:826 96:440 97:250 98:880 99:36 101:69
103:86 106:10 107:15 108:70 109:1008 110:608
111:694 112:293 113:391 114:542 115:649 116:948
117:667 118:810 119:1136 120:310 121:645 122:1625
123:940 124:1261 125:1224 128:209 129:166 130:161
131:574 132:104 133:21 134:206 135:45 136:213
137:135 138:300 139:112 140:462 141:238 142:387
143:418 144:486 145:54 146:443 147:212 148:591
149:246 150:164 151:190 152:331 153:180 154:3
155:398 156:192 157:323 158:138 159:383 160:315
161:200 162:307 163:152 164:506 165:351 166:533
167:433 168:735 169:156 170:837 171:77 172:1
173:1624 174:606 175:358 176:137 177:149 178:1004
180:885 181:19 182:470 183:223 184:306 185:1
186:1233 187:731 188:867 189:907 190:4871 192:5834
193:4967 194:3483 195:3038 196:1213 197:40 198:3542
199:3916 200:5458 201:1497 202:8091 203:8323 204:4119
205:2321 206:2594 207:2736 208:3933 209:3442 210:2637
211:1420 212:2111 213:1738 214:768 215:69 216:4908
217:1623 218:535 219:358 220:1157 221:475 222:310
223:159
End of report
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