Routing Table Report 08:00 +10GMT Sat 07 Jan, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 383210
Prefixes after maximum aggregation: 166566
Deaggregation factor: 2.30
Unique aggregates announced to Internet: 190652
Total ASes present in the Internet Routing Table: 37787
Prefixes per ASN: 10.14
Origin-only ASes present in the Internet Routing Table: 32556
Origin ASes announcing only one prefix: 15539
Transit ASes present in the Internet Routing Table: 5231
Transit-only ASes present in the Internet Routing Table: 126
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: 2818
Unregistered ASNs in the Routing Table: 1107
Number of 32-bit ASNs allocated by the RIRs: 2160
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4345
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 121
Number of addresses announced to Internet: 2523573248
Equivalent to 150 /8s, 106 /16s and 172 /24s
Percentage of available address space announced: 68.1
Percentage of allocated address space announced: 68.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.9
Total number of prefixes smaller than registry allocations: 160738
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 91472
Total APNIC prefixes after maximum aggregation: 30089
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 88818
Unique aggregates announced from the APNIC address blocks: 38835
APNIC Region origin ASes present in the Internet Routing Table: 4577
APNIC Prefixes per ASN: 19.41
APNIC Region origin ASes announcing only one prefix: 1265
APNIC Region transit ASes present in the Internet Routing Table: 701
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 633048832
Equivalent to 37 /8s, 187 /16s and 143 /24s
Percentage of available APNIC address space announced: 80.3
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: 145850
Total ARIN prefixes after maximum aggregation: 74488
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118170
Unique aggregates announced from the ARIN address blocks: 48984
ARIN Region origin ASes present in the Internet Routing Table: 14773
ARIN Prefixes per ASN: 8.00
ARIN Region origin ASes announcing only one prefix: 5668
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: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 804905216
Equivalent to 47 /8s, 249 /16s and 225 /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: 95902
Total RIPE prefixes after maximum aggregation: 51914
RIPE Deaggregation factor: 1.85
Prefixes being announced from the RIPE address blocks: 87897
Unique aggregates announced from the RIPE address blocks: 55666
RIPE Region origin ASes present in the Internet Routing Table: 16223
RIPE Prefixes per ASN: 5.42
RIPE Region origin ASes announcing only one prefix: 7992
RIPE Region transit ASes present in the Internet Routing Table: 2566
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: 496174080
Equivalent to 29 /8s, 147 /16s and 4 /24s
Percentage of available RIPE address space announced: 79.9
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: 36509
Total LACNIC prefixes after maximum aggregation: 7956
LACNIC Deaggregation factor: 4.59
Prefixes being announced from the LACNIC address blocks: 36229
Unique aggregates announced from the LACNIC address blocks: 19177
LACNIC Region origin ASes present in the Internet Routing Table: 1550
LACNIC Prefixes per ASN: 23.37
LACNIC Region origin ASes announcing only one prefix: 449
LACNIC Region transit ASes present in the Internet Routing Table: 279
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 95212544
Equivalent to 5 /8s, 172 /16s and 212 /24s
Percentage of available LACNIC address space announced: 63.1
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: 8425
Total AfriNIC prefixes after maximum aggregation: 2047
AfriNIC Deaggregation factor: 4.12
Prefixes being announced from the AfriNIC address blocks: 6476
Unique aggregates announced from the AfriNIC address blocks: 2063
AfriNIC Region origin ASes present in the Internet Routing Table: 497
AfriNIC Prefixes per ASN: 13.03
AfriNIC Region origin ASes announcing only one prefix: 165
AfriNIC Region transit ASes present in the Internet Routing Table: 111
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: 30070784
Equivalent to 1 /8s, 202 /16s and 216 /24s
Percentage of available AfriNIC address space announced: 44.8
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 1911 11097 658 Korea Telecom (KIX)
17974 1631 503 37 PT Telekomunikasi Indonesia
7545 1627 303 86 TPG Internet Pty Ltd
4755 1500 385 158 TATA Communications formerly
9829 1172 989 28 National Internet Backbone
9583 1111 81 496 Sify Limited
7552 1064 1062 11 Vietel Corporation
24560 986 381 164 Bharti Airtel Ltd., Telemedia
4808 971 1945 274 CNCGROUP IP network China169
18101 934 130 155 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 3476 3814 218 BellSouth.net Inc.
7029 3194 1042 213 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
1785 1867 681 122 PaeTec Communications, Inc.
4323 1620 1081 386 tw telecom holdings, inc.
20115 1615 1551 619 Charter Communications
22773 1517 2909 107 Cox Communications Inc.
30036 1483 263 690 Mediacom Communications Corp
19262 1388 4683 401 Verizon Online LLC
7018 1313 7047 864 AT&T Services, 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 1494 480 15 Corbina telecom
15557 1096 2161 64 NEUF CEGETEL (formerly LDCOM
2118 672 99 14 EUnet/RELCOM Autonomous Syste
6830 645 1928 414 UPC Broadband
34984 635 132 197 BILISIM TELEKOM
20940 563 183 451 Akamai Technologies European
8551 554 360 81 Bezeq International
12479 551 636 53 France Telecom Espana SA
9116 541 326 32 Goldenlines main autonomous s
3320 531 8162 397 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 1721 319 159 Types of queries are: POCs, o
28573 1565 1064 76 Types of queries are: POCs, o
8151 1319 2970 340 Uninet S.A. de C.V.
7303 1255 756 178 Telecom Argentina S.A.
27947 611 73 95 Telconet S.A
22047 582 322 17 Types of queries are: POCs, o
7738 551 1050 31 Telecomunicacoes da Bahia S.A
3816 550 237 91 Types of queries are: POCs, o
11172 534 102 100 Alestra, S. de R.L. de C.V.
6503 527 434 68 Axtel, S.A.B. 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
8452 1032 958 13 TEDATA
24863 790 146 33 LINKdotNET AS number
3741 280 939 229 The Internet Solution
6713 250 649 18 Itissalat Al-MAGHRIB
15706 242 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
29571 217 17 13 Ci Telecom Autonomous system
12258 196 28 61 Vodacom Internet Company
24835 191 80 8 RAYA Telecom - Egypt
16637 157 664 85 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 3476 3814 218 BellSouth.net Inc.
7029 3194 1042 213 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
4766 1911 11097 658 Korea Telecom (KIX)
1785 1867 681 122 PaeTec Communications, Inc.
10620 1721 319 159 Types of queries are: POCs, o
17974 1631 503 37 PT Telekomunikasi Indonesia
7545 1627 303 86 TPG Internet Pty Ltd
4323 1620 1081 386 tw telecom holdings, inc.
20115 1615 1551 619 Charter Communications
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 3194 2981 Windstream Communications Inc
18566 2094 1917 Covad Communications Co.
1785 1867 1745 PaeTec Communications, Inc.
17974 1631 1594 PT Telekomunikasi Indonesia
10620 1721 1562 Types of queries are: POCs, o
7545 1627 1541 TPG Internet Pty Ltd
28573 1565 1489 Types of queries are: POCs, o
8402 1494 1479 Corbina telecom
22773 1517 1410 Cox Communications Inc.
4755 1500 1342 TATA Communications formerly
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
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
37.35.8.0/21 8400 TELEKOM SRBIJA a.d.
37.35.64.0/21 33983 National IP network of ARTMOT
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 /10:27 /11:81 /12:238
/13:464 /14:812 /15:1449 /16:12054 /17:6116 /18:10146
/19:20284 /20:27921 /21:28278 /22:38445 /23:35738 /24:200581
/25:11 /26:21 /27:20 /28:154 /29:134 /30:67
/31:0 /32:137
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2806 3194 Windstream Communications Inc
6389 2120 3476 BellSouth.net Inc.
18566 2043 2094 Covad Communications Co.
10620 1616 1721 Types of queries are: POCs, o
8402 1473 1494 Corbina telecom
30036 1442 1483 Mediacom Communications Corp
11492 1114 1151 CABLE ONE, INC.
1785 1066 1867 PaeTec Communications, Inc.
7011 1051 1168 Frontier Communications of Am
15557 1046 1096 NEUF CEGETEL (formerly LDCOM
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:491 2:404 4:15 5:1 6:3 8:367
12:1948 13:1 14:577 15:11 16:3 17:7
20:9 23:86 24:1712 27:1164 31:831 32:62
33:2 34:2 36:4 37:15 38:788 40:114
41:2962 42:85 44:3 45:1 46:1161 47:3
49:297 50:501 52:13 55:6 56:2 57:37
58:897 59:480 60:340 61:1076 62:932 63:1962
64:4092 65:2301 66:4358 67:1988 68:1164 69:3145
70:919 71:419 72:1786 74:2644 75:442 76:321
77:921 78:885 79:489 80:1185 81:861 82:528
83:532 84:581 85:1167 86:752 87:912 88:349
89:1578 90:261 91:4403 92:534 93:1515 94:1335
95:1038 96:395 97:295 98:789 99:38 100:18
101:123 103:608 106:9 107:126 108:101 109:1422
110:682 111:831 112:400 113:494 114:598 115:718
116:856 117:705 118:887 119:1221 120:384 121:646
122:1584 123:1050 124:1302 125:1302 128:494 129:184
130:183 131:583 132:154 133:21 134:217 135:54
136:211 137:148 138:286 139:134 140:464 141:260
142:362 143:390 144:495 145:67 146:469 147:223
148:614 149:276 150:158 151:192 152:442 153:169
154:6 155:407 156:207 157:336 158:155 159:438
160:344 161:204 162:333 163:178 164:519 165:393
166:557 167:454 168:811 169:146 170:828 171:95
172:4 173:1785 174:586 175:417 176:332 177:448
178:1169 180:1217 181:43 182:676 183:264 184:421
185:1 186:1473 187:809 188:1006 189:1174 190:5302
192:5936 193:5459 194:3788 195:3194 196:1252 197:174
198:3568 199:4220 200:5500 201:1687 202:8284 203:8478
204:4265 205:2404 206:2622 207:2731 208:3997 209:3519
210:2676 211:1448 212:1981 213:1808 214:831 215:93
216:4880 217:1473 218:560 219:333 220:1173 221:547
222:297 223:251
End of report
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