Routing Table Report 08:00 +10GMT Wed 22 Jun, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 355685
Prefixes after maximum aggregation: 161559
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 178613
Total ASes present in the Internet Routing Table: 36611
Prefixes per ASN: 9.72
Origin-only ASes present in the Internet Routing Table: 31596
Origin ASes announcing only one prefix: 15207
Transit ASes present in the Internet Routing Table: 5015
Transit-only ASes present in the Internet Routing Table: 116
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: 2223
Unregistered ASNs in the Routing Table: 536
Number of 32-bit ASNs allocated by the RIRs: 1470
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2687
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 139
Number of addresses announced to Internet: 2491613952
Equivalent to 148 /8s, 131 /16s and 3 /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: 146649
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85487
Total APNIC prefixes after maximum aggregation: 28808
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 82915
Unique aggregates announced from the APNIC address blocks: 36283
APNIC Region origin ASes present in the Internet Routing Table: 4441
APNIC Prefixes per ASN: 18.67
APNIC Region origin ASes announcing only one prefix: 1263
APNIC Region transit ASes present in the Internet Routing Table: 668
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: 620954880
Equivalent to 37 /8s, 3 /16s and 5 /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: 139798
Total ARIN prefixes after maximum aggregation: 71453
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 112029
Unique aggregates announced from the ARIN address blocks: 46530
ARIN Region origin ASes present in the Internet Routing Table: 14361
ARIN Prefixes per ASN: 7.80
ARIN Region origin ASes announcing only one prefix: 5498
ARIN Region transit ASes present in the Internet Routing Table: 1456
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: 802319104
Equivalent to 47 /8s, 210 /16s and 107 /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: 86222
Total RIPE prefixes after maximum aggregation: 48821
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 79663
Unique aggregates announced from the RIPE address blocks: 52552
RIPE Region origin ASes present in the Internet Routing Table: 15726
RIPE Prefixes per ASN: 5.07
RIPE Region origin ASes announcing only one prefix: 7863
RIPE Region transit ASes present in the Internet Routing Table: 2459
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: 478134528
Equivalent to 28 /8s, 127 /16s and 193 /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: 32460
Total LACNIC prefixes after maximum aggregation: 7461
LACNIC Deaggregation factor: 4.35
Prefixes being announced from the LACNIC address blocks: 31874
Unique aggregates announced from the LACNIC address blocks: 16902
LACNIC Region origin ASes present in the Internet Routing Table: 1458
LACNIC Prefixes per ASN: 21.86
LACNIC Region origin ASes announcing only one prefix: 443
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: 84897792
Equivalent to 5 /8s, 15 /16s and 112 /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: 8302
Total AfriNIC prefixes after maximum aggregation: 2003
AfriNIC Deaggregation factor: 4.14
Prefixes being announced from the AfriNIC address blocks: 6435
Unique aggregates announced from the AfriNIC address blocks: 1957
AfriNIC Region origin ASes present in the Internet Routing Table: 460
AfriNIC Prefixes per ASN: 13.99
AfriNIC Region origin ASes announcing only one prefix: 140
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: 24336896
Equivalent to 1 /8s, 115 /16s and 90 /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 1558 450 42 PT Telekomunikasi Indonesia
7545 1536 301 85 TPG Internet Pty Ltd
4755 1476 374 165 TATA Communications formerly
24560 1153 336 187 Bharti Airtel Ltd., Telemedia
9583 1079 80 510 Sify Limited
7552 1054 1064 7 Vietel Corporation
9829 1046 883 59 National Internet Backbone
4808 953 2008 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 3626 3819 251 BellSouth.net Inc.
18566 1912 365 236 Covad Communications Co.
1785 1800 681 122 PaeTec Communications, Inc.
4323 1659 1097 398 tw telecom holdings, inc.
6478 1641 298 276 AT&T Services, Inc.
20115 1516 1527 636 Charter Communications
19262 1492 4920 307 Verizon Online LLC
7029 1409 1030 206 Alltel Information Services,
7018 1375 7087 902 AT&T Services, Inc.
22773 1340 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 525 107 182 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 446 134 26 Bulgarian Telecommunication C
12479 435 593 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 1251 2712 358 Uninet S.A. de C.V.
28573 1251 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 531 229 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 794 147 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 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 251 BellSouth.net Inc.
23456 2687 666 1460 32-bit ASN transition
18566 1912 365 236 Covad Communications Co.
4766 1900 9492 622 Korea Telecom (KIX)
1785 1800 681 122 PaeTec Communications, Inc.
4323 1659 1097 398 tw telecom holdings, inc.
6478 1641 298 276 AT&T Services, Inc.
17974 1558 450 42 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 1800 1678 PaeTec Communications, Inc.
18566 1912 1676 Covad Communications Co.
17974 1558 1516 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 1476 1311 TATA Communications formerly
4766 1900 1278 Korea Telecom (KIX)
4323 1659 1261 tw telecom holdings, inc.
22773 1340 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.
31.132.80.0/20 50704 Benefic Consult SRL
31.132.192.0/21 50704 Benefic Consult SRL
41.190.32.0/23 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 /14:797 /15:1395 /16:11932 /17:5826 /18:9719
/19:19468 /20:26002 /21:25987 /22:34150 /23:32983 /24:186082
/25:13 /26:18 /27:26 /28:161 /29:103 /30:58
/31:0 /32:129
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2228 3626 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 1320 2687 32-bit ASN transition
7029 1088 1409 Alltel Information Services,
11492 1087 1133 CABLE ONE, INC.
1785 1050 1800 PaeTec Communications, Inc.
7011 1026 1125 Frontier Communications of Am
22773 855 1340 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 2:48 4:16 5:1 6:3 8:335
12:1973 13:1 14:448 15:15 16:3 17:8
20:10 23:11 24:1647 27:789 31:467 32:59
33:4 34:2 37:1 38:733 40:103 41:2507
42:2 44:3 46:970 47:3 49:192 50:415
52:13 54:2 55:3 56:2 57:31 58:792
59:469 60:384 61:1020 62:1055 63:1933 64:3914
65:2286 66:3851 67:1895 68:1084 69:3043 70:751
71:375 72:1887 74:2365 75:317 76:338 77:874
78:705 79:468 80:1112 81:840 82:498 83:458
84:670 85:1076 86:552 87:759 88:332 89:1527
90:209 91:3860 92:533 93:1041 94:1295 95:839
96:438 97:250 98:880 99:36 101:66 103:81
106:10 107:14 108:71 109:1005 110:609 111:701
112:293 113:401 114:540 115:654 116:948 117:672
118:805 119:1135 120:309 121:645 122:1625 123:946
124:1262 125:1224 128:209 129:166 130:161 131:573
132:103 133:21 134:206 135:48 136:214 137:134
138:300 139:112 140:461 141:238 142:387 143:420
144:490 145:54 146:445 147:212 148:592 149:246
150:164 151:190 152:330 153:180 154:3 155:398
156:192 157:323 158:138 159:384 160:314 161:200
162:308 163:152 164:504 165:350 166:533 167:429
168:735 169:153 170:837 171:77 172:1 173:1620
174:605 175:357 176:138 177:171 178:995 180:883
181:19 182:466 183:222 184:302 185:1 186:1244
187:733 188:865 189:903 190:4880 192:5810 193:4957
194:3492 195:3039 196:1224 197:40 198:3542 199:3918
200:5459 201:1497 202:8093 203:8323 204:4117 205:2318
206:2597 207:2741 208:3935 209:3431 210:2637 211:1422
212:2111 213:1730 214:772 215:69 216:4902 217:1641
218:535 219:358 220:1196 221:475 222:310 223:158
End of report
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