Routing Table Report 08:00 +10GMT Sat 09 Jun, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 405592
Prefixes after maximum aggregation: 172811
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 201511
Total ASes present in the Internet Routing Table: 38635
Prefixes per ASN: 10.50
Origin-only ASes present in the Internet Routing Table: 33323
Origin ASes announcing only one prefix: 15704
Transit ASes present in the Internet Routing Table: 5312
Transit-only ASes present in the Internet Routing Table: 119
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN ( 36992) 22
Prefixes from unregistered ASNs in the Routing Table: 1175
Unregistered ASNs in the Routing Table: 228
Number of 32-bit ASNs allocated by the RIRs: 2815
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 6208
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 161
Number of addresses announced to Internet: 2581083904
Equivalent to 153 /8s, 216 /16s and 55 /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: 166744
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 94844
Total APNIC prefixes after maximum aggregation: 31097
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 92341
Unique aggregates announced from the APNIC address blocks: 40358
APNIC Region origin ASes present in the Internet Routing Table: 4663
APNIC Prefixes per ASN: 19.80
APNIC Region origin ASes announcing only one prefix: 1282
APNIC Region transit ASes present in the Internet Routing Table: 716
Average APNIC Region AS path length visible: 4.1
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: 646428160
Equivalent to 38 /8s, 135 /16s and 182 /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: 150294
Total ARIN prefixes after maximum aggregation: 76637
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 120935
Unique aggregates announced from the ARIN address blocks: 51351
ARIN Region origin ASes present in the Internet Routing Table: 15097
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5750
ARIN Region transit ASes present in the Internet Routing Table: 1520
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: 816468736
Equivalent to 48 /8s, 170 /16s and 83 /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: 102794
Total RIPE prefixes after maximum aggregation: 54696
RIPE Deaggregation factor: 1.88
Prefixes being announced from the RIPE address blocks: 94863
Unique aggregates announced from the RIPE address blocks: 59758
RIPE Region origin ASes present in the Internet Routing Table: 16588
RIPE Prefixes per ASN: 5.72
RIPE Region origin ASes announcing only one prefix: 8067
RIPE Region transit ASes present in the Internet Routing Table: 2592
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 22
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 515498496
Equivalent to 30 /8s, 185 /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: 41261
Total LACNIC prefixes after maximum aggregation: 8157
LACNIC Deaggregation factor: 5.06
Prefixes being announced from the LACNIC address blocks: 41620
Unique aggregates announced from the LACNIC address blocks: 20617
LACNIC Region origin ASes present in the Internet Routing Table: 1589
LACNIC Prefixes per ASN: 26.19
LACNIC Region origin ASes announcing only one prefix: 440
LACNIC Region transit ASes present in the Internet Routing Table: 298
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: 101927680
Equivalent to 6 /8s, 19 /16s and 75 /24s
Percentage of available LACNIC address space announced: 67.5
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: 9354
Total AfriNIC prefixes after maximum aggregation: 2160
AfriNIC Deaggregation factor: 4.33
Prefixes being announced from the AfriNIC address blocks: 7407
Unique aggregates announced from the AfriNIC address blocks: 2192
AfriNIC Region origin ASes present in the Internet Routing Table: 543
AfriNIC Prefixes per ASN: 13.64
AfriNIC Region origin ASes announcing only one prefix: 165
AfriNIC Region transit ASes present in the Internet Routing Table: 121
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: 31834624
Equivalent to 1 /8s, 229 /16s and 194 /24s
Percentage of available AfriNIC address space announced: 47.4
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 1566 384 152 TATA Communications formerly
9829 1300 1085 28 National Internet Backbone
9583 1175 87 502 Sify Limited
7552 1132 1062 11 Vietel Corporation
24560 1028 385 163 Bharti Airtel Ltd., Telemedia
9498 965 291 64 BHARTI Airtel Ltd.
4808 950 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 3409 3791 192 BellSouth.net Inc.
7029 3289 1016 171 Windstream Communications Inc
18566 2092 382 181 Covad Communications Co.
1785 1918 681 131 PaeTec Communications, Inc.
20115 1646 1570 616 Charter Communications
22773 1643 2911 121 Cox Communications Inc.
4323 1570 1059 384 tw telecom holdings, inc.
30036 1425 265 753 Mediacom Communications Corp
7018 1233 10062 832 AT&T Services, Inc.
11492 1189 216 356 CABLE ONE, 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
8402 1650 544 16 Corbina telecom
2118 1226 97 14 EUnet/RELCOM Autonomous Syste
12479 714 699 84 France Telecom Espana SA
34984 705 188 171 BILISIM TELEKOM
31148 684 37 9 FreeNet ISP
6830 655 2217 424 UPC Broadband
20940 650 215 519 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 1932 342 205 Types of queries are: POCs, o
28573 1923 1184 48 Types of queries are: POCs, o
6503 1524 418 67 Axtel, S.A.B. de C.V.
7303 1437 901 193 Telecom Argentina S.A.
8151 1351 3065 332 Uninet S.A. de C.V.
26615 903 760 32 Tim Celular S.A.
27947 676 73 94 Telconet S.A
11172 646 107 74 Alestra, S. de R.L. de C.V.
3816 587 247 89 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 1374 958 13 TEDATA
24863 838 274 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
16637 159 664 88 MTN Network Solutions
29571 157 15 16 Ci Telecom Autonomous system
36923 157 20 4 Swift Networks Limited
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 3409 3791 192 BellSouth.net Inc.
7029 3289 1016 171 Windstream Communications Inc
18566 2092 382 181 Covad Communications Co.
4766 1982 11104 732 Korea Telecom (KIX)
10620 1932 342 205 Types of queries are: POCs, o
28573 1923 1184 48 Types of queries are: POCs, o
1785 1918 681 131 PaeTec Communications, Inc.
17974 1841 530 81 PT Telekomunikasi Indonesia
7545 1679 301 86 TPG Internet Pty Ltd
8402 1650 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 3289 3118 Windstream Communications Inc
18566 2092 1911 Covad Communications Co.
28573 1923 1875 Types of queries are: POCs, o
1785 1918 1787 PaeTec Communications, Inc.
17974 1841 1760 PT Telekomunikasi Indonesia
10620 1932 1727 Types of queries are: POCs, o
8402 1650 1634 Corbina telecom
7545 1679 1593 TPG Internet Pty Ltd
22773 1643 1522 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
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
27.112.114.0/24 23884 Proimage Engineering and Comm
41.188.64.0/18 29544 Mauritanian Telecommunication
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 /14:830 /15:1502 /16:12243 /17:6269 /18:10525
/19:20644 /20:29386 /21:30702 /22:40200 /23:38075 /24:213803
/25:11 /26:21 /27:20 /28:151 /29:149 /30:81
/31:0 /32:141
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2930 3289 Windstream Communications Inc
6389 2128 3409 BellSouth.net Inc.
18566 2041 2092 Covad Communications Co.
8402 1628 1650 Corbina telecom
30036 1365 1425 Mediacom Communications Corp
6503 1213 1524 Axtel, S.A.B. de C.V.
8452 1174 1374 TEDATA
11492 1152 1189 CABLE ONE, INC.
22773 1088 1643 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)
----------------------------------------------
1:553 2:698 3:1 4:13 5:51 6:3
8:425 12:1977 13:1 14:611 15:12 16:3
17:5 20:23 23:178 24:1773 27:1303 31:998
32:51 33:2 34:2 36:8 37:682 38:807
40:125 41:3248 42:135 44:3 46:1425 47:2
49:398 50:556 52:13 54:12 55:6 56:1
57:27 58:910 59:491 60:253 61:1105 62:980
63:2001 64:4226 65:2246 66:4442 67:2030 68:1157
69:3170 70:949 71:508 72:1824 74:2591 75:471
76:327 77:947 78:965 79:453 80:1222 81:937
82:669 83:543 84:488 85:1179 86:441 87:909
88:334 89:1726 90:293 91:4920 92:558 93:1373
94:1550 95:1206 96:362 97:315 98:901 99:35
100:8 101:257 103:1107 106:95 107:186 108:312
109:1322 110:762 111:919 112:407 113:600 114:622
115:838 116:933 117:702 118:910 119:1198 120:351
121:677 122:1632 123:1099 124:1323 125:1258 128:524
129:196 130:242 131:629 132:282 133:22 134:232
135:61 136:213 137:236 138:358 139:183 140:467
141:251 142:398 143:368 144:526 145:72 146:502
147:292 148:754 149:311 150:156 151:179 152:466
153:174 154:13 155:462 156:218 157:336 158:186
159:504 160:345 161:240 162:346 163:179 164:630
165:401 166:591 167:471 168:858 169:126 170:878
171:136 172:4 173:1765 174:605 175:425 176:541
177:811 178:1337 180:1221 181:91 182:1028 183:227
184:528 185:1 186:2316 187:1120 188:1307 189:1831
190:5585 192:5952 193:5520 194:4530 195:3388 196:1224
197:151 198:3615 199:4718 200:5790 201:1946 202:8327
203:8478 204:4268 205:2485 206:2683 207:2728 208:4005
209:3590 210:2694 211:1521 212:2029 213:1931 214:873
215:97 216:5072 217:1551 218:539 219:306 220:1230
221:552 222:287 223:310
End of report