* BGP Routing Table Analysis Reports *
Routing Table Report 08:00 +10GMT Wed 06 Jun, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 405867
Prefixes after maximum aggregation: 172720
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 201327
Total ASes present in the Internet Routing Table: 38616
Prefixes per ASN: 10.51
Origin-only ASes present in the Internet Routing Table: 33309
Origin ASes announcing only one prefix: 15696
Transit ASes present in the Internet Routing Table: 5307
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: 25
Max AS path prepend of ASN ( 36992) 22
Prefixes from unregistered ASNs in the Routing Table: 1185
Unregistered ASNs in the Routing Table: 234
Number of 32-bit ASNs allocated by the RIRs: 2794
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 6150
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 119
Number of addresses announced to Internet: 2581147392
Equivalent to 153 /8s, 217 /16s and 47 /24s
Percentage of available address space announced: 69.6
Percentage of allocated address space announced: 69.7
Percentage of available address space allocated: 99.9
Percentage of address space in use by end-sites: 92.8
Total number of prefixes smaller than registry allocations: 167202
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 94646
Total APNIC prefixes after maximum aggregation: 30999
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 92132
Unique aggregates announced from the APNIC address blocks: 40173
APNIC Region origin ASes present in the Internet Routing Table: 4649
APNIC Prefixes per ASN: 19.82
APNIC Region origin ASes announcing only one prefix: 1268
APNIC Region transit ASes present in the Internet Routing Table: 715
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: 646439168
Equivalent to 38 /8s, 135 /16s and 225 /24s
Percentage of available APNIC address space announced: 82.0
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-133119
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: 150558
Total ARIN prefixes after maximum aggregation: 76662
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 121180
Unique aggregates announced from the ARIN address blocks: 51322
ARIN Region origin ASes present in the Internet Routing Table: 15092
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5745
ARIN Region transit ASes present in the Internet Routing Table: 1523
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 19
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 816750848
Equivalent to 48 /8s, 174 /16s and 161 /24s
Percentage of available ARIN address space announced: 65.1
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: 103075
Total RIPE prefixes after maximum aggregation: 54654
RIPE Deaggregation factor: 1.89
Prefixes being announced from the RIPE address blocks: 95145
Unique aggregates announced from the RIPE address blocks: 59686
RIPE Region origin ASes present in the Internet Routing Table: 16596
RIPE Prefixes per ASN: 5.73
RIPE Region origin ASes announcing only one prefix: 8075
RIPE Region transit ASes present in the Internet Routing Table: 2595
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 515301888
Equivalent to 30 /8s, 182 /16s and 226 /24s
Percentage of available RIPE address space announced: 83.0
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
59392-61439, 196608-199679
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: 41210
Total LACNIC prefixes after maximum aggregation: 8169
LACNIC Deaggregation factor: 5.04
Prefixes being announced from the LACNIC address blocks: 41545
Unique aggregates announced from the LACNIC address blocks: 20636
LACNIC Region origin ASes present in the Internet Routing Table: 1585
LACNIC Prefixes per ASN: 26.21
LACNIC Region origin ASes announcing only one prefix: 441
LACNIC Region transit ASes present in the Internet Routing Table: 293
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: 101802240
Equivalent to 6 /8s, 17 /16s and 97 /24s
Percentage of available LACNIC address space announced: 67.4
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: 9390
Total AfriNIC prefixes after maximum aggregation: 2167
AfriNIC Deaggregation factor: 4.33
Prefixes being announced from the AfriNIC address blocks: 7443
Unique aggregates announced from the AfriNIC address blocks: 2189
AfriNIC Region origin ASes present in the Internet Routing Table: 542
AfriNIC Prefixes per ASN: 13.73
AfriNIC Region origin ASes announcing only one prefix: 167
AfriNIC Region transit ASes present in the Internet Routing Table: 117
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: 31874560
Equivalent to 1 /8s, 230 /16s and 94 /24s
Percentage of available AfriNIC address space announced: 47.5
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 1982 11104 732 Korea Telecom (KIX)
17974 1841 530 81 PT Telekomunikasi Indonesia
7545 1679 301 86 TPG Internet Pty Ltd
4755 1553 384 152 TATA Communications formerly
9829 1304 1085 28 National Internet Backbone
9583 1174 87 501 Sify Limited
7552 1130 1062 11 Vietel Corporation
24560 1026 385 167 Bharti Airtel Ltd., Telemedia
9498 963 291 63 BHARTI Airtel Ltd.
4808 949 1938 283 CNCGROUP IP network China169
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 3411 3807 194 BellSouth.net Inc.
7029 3381 1016 171 Windstream Communications Inc
18566 2093 382 181 Covad Communications Co.
1785 1913 680 130 PaeTec Communications, Inc.
20115 1647 1570 616 Charter Communications
22773 1637 2911 121 Cox Communications Inc.
4323 1569 1058 383 tw telecom holdings, inc.
30036 1422 265 752 Mediacom Communications Corp
7018 1231 10064 832 AT&T Services, Inc.
7011 1188 317 681 Frontier Communications of Am
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
8402 1658 544 16 Corbina telecom
2118 1226 97 14 EUnet/RELCOM Autonomous Syste
34984 704 188 171 BILISIM TELEKOM
12479 696 683 72 France Telecom Espana SA
31148 684 37 9 FreeNet ISP
6830 652 2215 423 UPC Broadband
20940 652 218 518 Akamai Technologies European
9116 540 326 31 Goldenlines main autonomous s
8551 505 364 61 Bezeq International
3320 489 8442 402 Deutsche Telekom AG
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 1926 341 204 Types of queries are: POCs, o
28573 1926 1184 48 Types of queries are: POCs, o
6503 1524 418 67 Axtel, S.A.B. de C.V.
7303 1436 901 192 Telecom Argentina S.A.
8151 1339 3048 330 Uninet S.A. de C.V.
26615 902 760 32 Tim Celular S.A.
27947 669 73 94 Telconet S.A
11172 646 107 74 Alestra, S. de R.L. de C.V.
3816 587 246 94 Types of queries are: POCs, o
22047 583 326 15 Types of queries are: POCs, o
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 1414 958 13 TEDATA
24863 851 274 32 LINKdotNET AS number
6713 497 649 18 Itissalat Al-MAGHRIB
24835 321 80 8 RAYA Telecom - Egypt
3741 262 905 223 The Internet Solution
33776 210 12 21 Starcomms Nigeria Limited
12258 197 28 62 Vodacom Internet Company
15706 169 32 6 Sudatel Internet Exchange Aut
16637 160 666 87 MTN Network Solutions
29571 157 15 16 Ci Telecom Autonomous system
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 3411 3807 194 BellSouth.net Inc.
7029 3381 1016 171 Windstream Communications Inc
18566 2093 382 181 Covad Communications Co.
4766 1982 11104 732 Korea Telecom (KIX)
10620 1926 341 204 Types of queries are: POCs, o
28573 1926 1184 48 Types of queries are: POCs, o
1785 1913 680 130 PaeTec Communications, Inc.
17974 1841 530 81 PT Telekomunikasi Indonesia
7545 1679 301 86 TPG Internet Pty Ltd
8402 1658 544 16 Corbina telecom
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 3381 3210 Windstream Communications Inc
18566 2093 1912 Covad Communications Co.
28573 1926 1878 Types of queries are: POCs, o
1785 1913 1783 PaeTec Communications, Inc.
17974 1841 1760 PT Telekomunikasi Indonesia
10620 1926 1722 Types of queries are: POCs, o
8402 1658 1642 Corbina telecom
7545 1679 1593 TPG Internet Pty Ltd
22773 1637 1516 Cox Communications Inc.
6503 1524 1457 Axtel, S.A.B. de C.V.
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.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
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.
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T Services, Inc.
19577 UNALLOCATED 12.41.188.0/24 7832 WW/Precision Communi
13317 UNALLOCATED 12.44.10.0/24 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
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
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 0 *
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
5.57.192.0/21 12360 KEVAG Telekom GmbH
5.57.232.0/21 28775 Transtelecom Autonomous Syste
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
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 /8:20 /9:13 /10:29 /11:82 /12:236
/13:459 /14:831 /15:1499 /16:12249 /17:6279 /18:10536
/19:20684 /20:29358 /21:30655 /22:40277 /23:38080 /24:214013
/25:11 /26:20 /27:18 /28:151 /29:147 /30:79
/31:0 /32:141
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3021 3381 Windstream Communications Inc
6389 2129 3411 BellSouth.net Inc.
18566 2042 2093 Covad Communications Co.
8402 1636 1658 Corbina telecom
30036 1362 1422 Mediacom Communications Corp
8452 1215 1414 TEDATA
6503 1213 1524 Axtel, S.A.B. de C.V.
11492 1151 1188 CABLE ONE, INC.
22773 1082 1637 Cox Communications Inc.
7011 1073 1188 Frontier Communications of Am
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:554 2:706 3:1 4:13 5:48 6:3
8:423 12:1978 13:1 14:610 15:12 16:3
17:5 20:23 23:173 24:1773 27:1275 31:1010
32:51 33:2 34:2 36:9 37:664 38:806
40:122 41:3273 42:135 44:3 46:1435 47:3
49:435 50:552 52:13 54:12 55:13 56:3
57:27 58:898 59:492 60:253 61:1105 62:1008
63:2001 64:4248 65:2247 66:4456 67:2031 68:1156
69:3184 70:951 71:508 72:1823 74:2603 75:494
76:326 77:944 78:975 79:488 80:1226 81:939
82:667 83:543 84:492 85:1178 86:441 87:906
88:345 89:1725 90:293 91:4903 92:557 93:1380
94:1577 95:1180 96:358 97:314 98:900 99:35
100:7 101:255 103:1102 106:95 107:186 108:299
109:1365 110:749 111:913 112:405 113:599 114:614
115:831 116:928 117:703 118:908 119:1199 120:351
121:680 122:1630 123:1096 124:1321 125:1258 128:510
129:196 130:243 131:627 132:283 133:22 134:234
135:61 136:213 137:236 138:358 139:184 140:466
141:251 142:396 143:412 144:538 145:72 146:502
147:285 148:753 149:307 150:157 151:177 152:467
153:172 154:13 155:457 156:218 157:336 158:185
159:500 160:342 161:240 162:346 163:180 164:630
165:400 166:592 167:470 168:859 169:125 170:877
171:136 172:2 173:1766 174:612 175:424 176:546
177:809 178:1399 180:1218 181:88 182:1022 183:227
184:524 185:1 186:2312 187:1114 188:1317 189:1817
190:5537 192:5971 193:5512 194:4530 195:3382 196:1211
197:149 198:3620 199:4700 200:5797 201:1931 202:8318
203:8461 204:4264 205:2511 206:2685 207:2724 208:4052
209:3599 210:2695 211:1522 212:2049 213:1932 214:872
215:97 216:5070 217:1556 218:537 219:306 220:1234
221:554 222:286 223:308
End of report
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