Routing Table Report 08:00 +10GMT Wed 25 Apr, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 399785
Prefixes after maximum aggregation: 170779
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 197787
Total ASes present in the Internet Routing Table: 38402
Prefixes per ASN: 10.41
Origin-only ASes present in the Internet Routing Table: 33104
Origin ASes announcing only one prefix: 15642
Transit ASes present in the Internet Routing Table: 5298
Transit-only ASes present in the Internet Routing Table: 123
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 26
Max AS path prepend of ASN (51742) 24
Prefixes from unregistered ASNs in the Routing Table: 1207
Unregistered ASNs in the Routing Table: 222
Number of 32-bit ASNs allocated by the RIRs: 2620
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 5609
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 116
Number of addresses announced to Internet: 2556431360
Equivalent to 152 /8s, 96 /16s and 12 /24s
Percentage of available address space announced: 69.0
Percentage of allocated address space announced: 69.1
Percentage of available address space allocated: 99.9
Percentage of address space in use by end-sites: 92.4
Total number of prefixes smaller than registry allocations: 169190
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93517
Total APNIC prefixes after maximum aggregation: 30836
APNIC Deaggregation factor: 3.03
Prefixes being announced from the APNIC address blocks: 91026
Unique aggregates announced from the APNIC address blocks: 39855
APNIC Region origin ASes present in the Internet Routing Table: 4641
APNIC Prefixes per ASN: 19.61
APNIC Region origin ASes announcing only one prefix: 1262
APNIC Region transit ASes present in the Internet Routing Table: 709
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: 643910912
Equivalent to 38 /8s, 97 /16s and 77 /24s
Percentage of available APNIC address space announced: 81.7
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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: 148858
Total ARIN prefixes after maximum aggregation: 75878
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 120264
Unique aggregates announced from the ARIN address blocks: 50384
ARIN Region origin ASes present in the Internet Routing Table: 14998
ARIN Prefixes per ASN: 8.02
ARIN Region origin ASes announcing only one prefix: 5731
ARIN Region transit ASes present in the Internet Routing Table: 1516
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 16
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 807248128
Equivalent to 48 /8s, 29 /16s and 161 /24s
Percentage of available ARIN address space announced: 64.4
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: 101916
Total RIPE prefixes after maximum aggregation: 53722
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 93897
Unique aggregates announced from the RIPE address blocks: 58269
RIPE Region origin ASes present in the Internet Routing Table: 16487
RIPE Prefixes per ASN: 5.70
RIPE Region origin ASes announcing only one prefix: 8036
RIPE Region transit ASes present in the Internet Routing Table: 2596
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 510241024
Equivalent to 30 /8s, 105 /16s and 169 /24s
Percentage of available RIPE address space announced: 82.2
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: 40055
Total LACNIC prefixes after maximum aggregation: 8145
LACNIC Deaggregation factor: 4.92
Prefixes being announced from the LACNIC address blocks: 40083
Unique aggregates announced from the LACNIC address blocks: 20258
LACNIC Region origin ASes present in the Internet Routing Table: 1581
LACNIC Prefixes per ASN: 25.35
LACNIC Region origin ASes announcing only one prefix: 446
LACNIC Region transit ASes present in the Internet Routing Table: 287
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 99270656
Equivalent to 5 /8s, 234 /16s and 192 /24s
Percentage of available LACNIC address space announced: 65.7
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: 9009
Total AfriNIC prefixes after maximum aggregation: 2128
AfriNIC Deaggregation factor: 4.23
Prefixes being announced from the AfriNIC address blocks: 7086
Unique aggregates announced from the AfriNIC address blocks: 2194
AfriNIC Region origin ASes present in the Internet Routing Table: 532
AfriNIC Prefixes per ASN: 13.32
AfriNIC Region origin ASes announcing only one prefix: 167
AfriNIC Region transit ASes present in the Internet Routing Table: 115
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: 31785984
Equivalent to 1 /8s, 229 /16s and 4 /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 1927 11104 694 Korea Telecom (KIX)
17974 1721 506 65 PT Telekomunikasi Indonesia
7545 1671 301 88 TPG Internet Pty Ltd
4755 1556 384 154 TATA Communications formerly
9829 1248 1069 30 National Internet Backbone
9583 1144 85 489 Sify Limited
7552 1100 1062 11 Vietel Corporation
24560 1015 385 167 Bharti Airtel Ltd., Telemedia
4808 958 1938 287 CNCGROUP IP network China169
9498 949 291 64 BHARTI Airtel Ltd.
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 3428 3807 196 BellSouth.net Inc.
7029 3402 1016 169 Windstream Communications Inc
18566 2092 382 179 Covad Communications Co.
1785 1906 680 129 PaeTec Communications, Inc.
20115 1639 1566 619 Charter Communications
4323 1601 1060 384 tw telecom holdings, inc.
22773 1578 2910 113 Cox Communications Inc.
30036 1412 258 763 Mediacom Communications Corp
7018 1268 9808 827 AT&T Services, Inc.
11492 1186 216 364 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 1662 544 16 Corbina telecom
2118 1304 97 14 EUnet/RELCOM Autonomous Syste
34984 681 188 174 BILISIM TELEKOM
31148 680 37 9 FreeNet ISP
6830 653 2215 424 UPC Broadband
12479 642 666 62 France Telecom Espana SA
20940 635 205 501 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
3320 531 8441 397 Deutsche Telekom AG
8551 503 360 80 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 1829 329 172 Types of queries are: POCs, o
28573 1790 1107 59 Types of queries are: POCs, o
6503 1522 418 66 Axtel, S.A.B. de C.V.
7303 1362 829 187 Telecom Argentina S.A.
8151 1335 2981 336 Uninet S.A. de C.V.
26615 902 697 32 Tim Celular S.A.
27947 661 74 98 Telconet S.A
11172 641 107 74 Alestra, S. de R.L. de C.V.
22047 582 326 15 Types of queries are: POCs, o
3816 575 242 100 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 1303 958 13 TEDATA
24863 838 274 32 LINKdotNET AS number
6713 493 649 18 Itissalat Al-MAGHRIB
3741 265 921 223 The Internet Solution
12258 197 28 62 Vodacom Internet Company
33776 197 12 21 Starcomms Nigeria Limited
24835 179 80 8 RAYA Telecom - Egypt
15706 169 32 6 Sudatel Internet Exchange Aut
16637 164 666 86 MTN Network Solutions
29571 159 15 15 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 3428 3807 196 BellSouth.net Inc.
7029 3402 1016 169 Windstream Communications Inc
18566 2092 382 179 Covad Communications Co.
4766 1927 11104 694 Korea Telecom (KIX)
1785 1906 680 129 PaeTec Communications, Inc.
10620 1829 329 172 Types of queries are: POCs, o
28573 1790 1107 59 Types of queries are: POCs, o
17974 1721 506 65 PT Telekomunikasi Indonesia
7545 1671 301 88 TPG Internet Pty Ltd
8402 1662 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 3402 3233 Windstream Communications Inc
18566 2092 1913 Covad Communications Co.
1785 1906 1777 PaeTec Communications, Inc.
28573 1790 1731 Types of queries are: POCs, o
10620 1829 1657 Types of queries are: POCs, o
17974 1721 1656 PT Telekomunikasi Indonesia
8402 1662 1646 Corbina telecom
7545 1671 1583 TPG Internet Pty Ltd
22773 1578 1465 Cox Communications Inc.
6503 1522 1456 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.
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.
25639 UNALLOCATED 12.41.169.0/24 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
5.1.0.0/19 21219 PRIVATE JOINT STOCK COMPANY "
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
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 /9:12 /10:28 /11:81 /12:236
/13:460 /14:827 /15:1482 /16:12183 /17:6211 /18:10438
/19:20612 /20:28792 /21:29672 /22:40022 /23:37558 /24:210591
/25:11 /26:21 /27:20 /28:154 /29:145 /30:71
/31:0 /32:138
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3042 3402 Windstream Communications Inc
6389 2145 3428 BellSouth.net Inc.
18566 2041 2092 Covad Communications Co.
10620 1706 1829 Types of queries are: POCs, o
8402 1639 1662 Corbina telecom
30036 1358 1412 Mediacom Communications Corp
6503 1281 1522 Axtel, S.A.B. de C.V.
11492 1149 1186 CABLE ONE, INC.
8452 1103 1303 TEDATA
1785 1071 1906 PaeTec Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:536 2:708 4:14 6:3 8:404 12:1977
13:1 14:602 15:12 16:3 17:7 20:23
23:166 24:1765 27:1265 31:975 32:52 33:2
34:2 36:8 37:415 38:795 40:118 41:3179
42:135 44:3 46:1489 47:3 49:395 50:534
52:13 54:8 55:12 56:3 57:28 58:914
59:486 60:247 61:1083 62:989 63:1987 64:4158
65:2251 66:4477 67:2034 68:1166 69:3185 70:901
71:484 72:1820 74:2596 75:494 76:319 77:942
78:1005 79:481 80:1196 81:899 82:673 83:547
84:476 85:1200 86:420 87:928 88:345 89:1628
90:291 91:4753 92:523 93:1371 94:1503 95:1145
96:355 97:315 98:905 99:34 100:7 101:165
103:1005 106:102 107:191 108:217 109:1286 110:739
111:915 112:444 113:583 114:638 115:792 116:872
117:704 118:908 119:1179 120:348 121:666 122:1634
123:1077 124:1297 125:1234 128:503 129:188 130:248
131:621 132:173 133:22 134:233 135:62 136:213
137:173 138:355 139:146 140:465 141:243 142:383
143:397 144:522 145:74 146:494 147:280 148:746
149:303 150:151 151:175 152:463 153:171 154:8
155:416 156:212 157:334 158:177 159:454 160:331
161:237 162:345 163:181 164:573 165:402 166:571
167:468 168:814 169:127 170:860 171:127 172:2
173:1753 174:574 175:423 176:439 177:665 178:1333
180:1179 181:81 182:792 183:288 184:458 185:1
186:2228 187:1045 188:1213 189:1777 190:5513 192:5966
193:5542 194:4649 195:3588 196:1267 197:131 198:3605
199:4490 200:5709 201:1924 202:8254 203:8489 204:4249
205:2464 206:2660 207:2725 208:4055 209:3606 210:2660
211:1452 212:1986 213:1917 214:849 215:102 216:5105
217:1536 218:529 219:312 220:1225 221:537 222:295
223:324
End of report
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