Routing Table Report 08:00 +10GMT Wed 11 Apr, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 398290
Prefixes after maximum aggregation: 170011
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 196309
Total ASes present in the Internet Routing Table: 38320
Prefixes per ASN: 10.39
Origin-only ASes present in the Internet Routing Table: 33030
Origin ASes announcing only one prefix: 15491
Transit ASes present in the Internet Routing Table: 5290
Transit-only ASes present in the Internet Routing Table: 130
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: 1495
Unregistered ASNs in the Routing Table: 399
Number of 32-bit ASNs allocated by the RIRs: 2348
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 5346
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 1475
Number of addresses announced to Internet: 2551767552
Equivalent to 152 /8s, 24 /16s and 226 /24s
Percentage of available address space announced: 68.8
Percentage of allocated address space announced: 68.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.1
Total number of prefixes smaller than registry allocations: 167691
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93780
Total APNIC prefixes after maximum aggregation: 30810
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 91197
Unique aggregates announced from the APNIC address blocks: 39426
APNIC Region origin ASes present in the Internet Routing Table: 4634
APNIC Prefixes per ASN: 19.68
APNIC Region origin ASes announcing only one prefix: 1266
APNIC Region transit ASes present in the Internet Routing Table: 703
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 16
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 642848256
Equivalent to 38 /8s, 81 /16s and 22 /24s
Percentage of available APNIC address space announced: 81.5
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: 148051
Total ARIN prefixes after maximum aggregation: 75406
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119557
Unique aggregates announced from the ARIN address blocks: 49953
ARIN Region origin ASes present in the Internet Routing Table: 14889
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5673
ARIN Region transit ASes present in the Internet Routing Table: 1501
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: 805857280
Equivalent to 48 /8s, 8 /16s and 104 /24s
Percentage of available ARIN address space announced: 64.0
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: 101298
Total RIPE prefixes after maximum aggregation: 53291
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 92498
Unique aggregates announced from the RIPE address blocks: 57220
RIPE Region origin ASes present in the Internet Routing Table: 16354
RIPE Prefixes per ASN: 5.66
RIPE Region origin ASes announcing only one prefix: 7956
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: 24
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 502359808
Equivalent to 29 /8s, 241 /16s and 103 /24s
Percentage of available RIPE address space announced: 80.9
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: 39788
Total LACNIC prefixes after maximum aggregation: 8095
LACNIC Deaggregation factor: 4.92
Prefixes being announced from the LACNIC address blocks: 39535
Unique aggregates announced from the LACNIC address blocks: 19799
LACNIC Region origin ASes present in the Internet Routing Table: 1564
LACNIC Prefixes per ASN: 25.28
LACNIC Region origin ASes announcing only one prefix: 433
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: 98868736
Equivalent to 5 /8s, 228 /16s and 158 /24s
Percentage of available LACNIC address space announced: 65.5
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: 8904
Total AfriNIC prefixes after maximum aggregation: 2108
AfriNIC Deaggregation factor: 4.22
Prefixes being announced from the AfriNIC address blocks: 6971
Unique aggregates announced from the AfriNIC address blocks: 2117
AfriNIC Region origin ASes present in the Internet Routing Table: 524
AfriNIC Prefixes per ASN: 13.30
AfriNIC Region origin ASes announcing only one prefix: 163
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: 31509760
Equivalent to 1 /8s, 224 /16s and 205 /24s
Percentage of available AfriNIC address space announced: 47.0
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 1924 11110 696 Korea Telecom (KIX)
17974 1706 503 63 PT Telekomunikasi Indonesia
7545 1652 301 86 TPG Internet Pty Ltd
4755 1578 387 164 TATA Communications formerly
9583 1240 94 538 Sify Limited
9829 1234 1041 30 National Internet Backbone
7552 1106 1062 11 Vietel Corporation
24560 1021 385 167 Bharti Airtel Ltd., Telemedia
4808 990 1947 285 CNCGROUP IP network China169
18101 947 131 160 Reliance Infocom Ltd Internet
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 3432 3807 196 BellSouth.net Inc.
7029 3418 1016 169 Windstream Communications Inc
18566 1979 382 171 Covad Communications Co.
1785 1895 680 128 PaeTec Communications, Inc.
20115 1640 1563 618 Charter Communications
4323 1594 1059 380 tw telecom holdings, inc.
22773 1573 2910 111 Cox Communications Inc.
30036 1441 263 760 Mediacom Communications Corp
7018 1285 9807 835 AT&T Services, Inc.
11492 1185 216 365 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 1665 544 16 Corbina telecom
2118 1279 97 14 EUnet/RELCOM Autonomous Syste
34984 680 188 176 BILISIM TELEKOM
31148 679 37 9 FreeNet ISP
12479 650 657 60 France Telecom Espana SA
6830 640 1943 411 UPC Broadband
20940 616 199 486 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
3320 533 8442 399 Deutsche Telekom AG
8551 508 360 81 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 1799 327 161 Types of queries are: POCs, o
28573 1772 1106 60 Types of queries are: POCs, o
6503 1522 418 66 Axtel, S.A.B. de C.V.
8151 1363 2999 343 Uninet S.A. de C.V.
7303 1353 827 189 Telecom Argentina S.A.
26615 903 697 32 Tim Celular S.A.
27947 663 74 99 Telconet S.A
11172 639 107 74 Alestra, S. de R.L. de C.V.
22047 584 326 15 Types of queries are: POCs, o
3816 573 242 100 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 1312 958 13 TEDATA
24863 845 274 32 LINKdotNET AS number
6713 492 649 18 Itissalat Al-MAGHRIB
3741 266 921 224 The Internet Solution
12258 197 28 62 Vodacom Internet Company
33776 187 12 21 Starcomms Nigeria Limited
24835 178 80 8 RAYA Telecom - Egypt
15706 168 32 6 Sudatel Internet Exchange Aut
16637 163 666 86 MTN Network Solutions
29571 161 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 3432 3807 196 BellSouth.net Inc.
7029 3418 1016 169 Windstream Communications Inc
18566 1979 382 171 Covad Communications Co.
4766 1924 11110 696 Korea Telecom (KIX)
1785 1895 680 128 PaeTec Communications, Inc.
10620 1799 327 161 Types of queries are: POCs, o
28573 1772 1106 60 Types of queries are: POCs, o
17974 1706 503 63 PT Telekomunikasi Indonesia
8402 1665 544 16 Corbina telecom
7545 1652 301 86 TPG Internet Pty Ltd
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 3418 3249 Windstream Communications Inc
18566 1979 1808 Covad Communications Co.
1785 1895 1767 PaeTec Communications, Inc.
28573 1772 1712 Types of queries are: POCs, o
8402 1665 1649 Corbina telecom
17974 1706 1643 PT Telekomunikasi Indonesia
10620 1799 1638 Types of queries are: POCs, o
7545 1652 1566 TPG Internet Pty Ltd
22773 1573 1462 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
54601 UNALLOCATED 8.14.101.0/24 6461 AboveNet Communicati
54603 UNALLOCATED 8.18.203.0/24 14743 Internap Network Ser
54439 UNALLOCATED 8.25.174.0/24 3356 Level 3 Communicatio
54470 UNALLOCATED 8.30.171.0/24 3356 Level 3 Communicatio
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,
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
23.27.0.0/20 54500 EGIHosting
23.27.16.0/20 54500 EGIHosting
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
/13:459 /14:829 /15:1477 /16:12136 /17:6253 /18:10401
/19:20604 /20:28683 /21:29497 /22:39969 /23:37410 /24:209634
/25:11 /26:21 /27:20 /28:155 /29:144 /30:69
/31:0 /32:141
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3060 3418 Windstream Communications Inc
6389 2149 3432 BellSouth.net Inc.
18566 1934 1979 Covad Communications Co.
10620 1692 1799 Types of queries are: POCs, o
8402 1642 1665 Corbina telecom
30036 1381 1441 Mediacom Communications Corp
6503 1281 1522 Axtel, S.A.B. de C.V.
11492 1148 1185 CABLE ONE, INC.
8452 1120 1312 TEDATA
1785 1067 1895 PaeTec Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:530 2:677 4:14 6:3 8:396 12:1965
13:1 14:596 15:12 16:3 17:7 20:8
23:157 24:1764 27:1263 31:996 32:52 33:2
34:2 36:8 37:325 38:788 40:119 41:3080
42:130 44:3 46:1468 47:3 49:346 50:533
52:13 54:7 55:9 56:3 57:28 58:916
59:511 60:276 61:1162 62:972 63:1988 64:4103
65:2252 66:4431 67:2035 68:1148 69:3144 70:907
71:470 72:1812 74:2597 75:495 76:316 77:964
78:999 79:490 80:1202 81:900 82:670 83:546
84:490 85:1197 86:413 87:922 88:351 89:1639
90:297 91:4692 92:519 93:1390 94:1471 95:1116
96:355 97:319 98:891 99:34 100:7 101:164
103:948 106:104 107:182 108:204 109:1298 110:740
111:896 112:436 113:577 114:617 115:846 116:874
117:704 118:904 119:1178 120:341 121:787 122:1627
123:1104 124:1304 125:1251 128:522 129:184 130:250
131:594 132:165 133:21 134:234 135:62 136:210
137:173 138:354 139:145 140:466 141:244 142:367
143:397 144:516 145:66 146:482 147:273 148:743
149:298 150:152 151:176 152:461 153:172 154:6
155:445 156:213 157:335 158:175 159:451 160:341
161:235 162:347 163:179 164:567 165:389 166:561
167:464 168:813 169:126 170:844 171:127 172:4
173:1725 174:577 175:415 176:478 177:651 178:1315
180:1166 181:73 182:766 183:286 184:452 185:1
186:2184 187:1011 188:1188 189:1803 190:5417 192:5954
193:5538 194:4588 195:3567 196:1265 197:126 198:3574
199:4440 200:5701 201:1908 202:8246 203:8498 204:4267
205:2463 206:2655 207:2713 208:4041 209:3567 210:2678
211:1453 212:1999 213:1912 214:883 215:107 216:5054
217:1541 218:528 219:340 220:1220 221:537 222:292
223:316
End of report
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