Routing Table Report 08:00 +10GMT Thu 05 Jan, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 383011
Prefixes after maximum aggregation: 166573
Deaggregation factor: 2.30
Unique aggregates announced to Internet: 190543
Total ASes present in the Internet Routing Table: 37773
Prefixes per ASN: 10.14
Origin-only ASes present in the Internet Routing Table: 32545
Origin ASes announcing only one prefix: 15525
Transit ASes present in the Internet Routing Table: 5228
Transit-only ASes present in the Internet Routing Table: 125
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: 2905
Unregistered ASNs in the Routing Table: 1108
Number of 32-bit ASNs allocated by the RIRs: 2155
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4334
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 116
Number of addresses announced to Internet: 2523088128
Equivalent to 150 /8s, 99 /16s and 69 /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: 160655
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 91378
Total APNIC prefixes after maximum aggregation: 30060
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 88731
Unique aggregates announced from the APNIC address blocks: 38840
APNIC Region origin ASes present in the Internet Routing Table: 4573
APNIC Prefixes per ASN: 19.40
APNIC Region origin ASes announcing only one prefix: 1261
APNIC Region transit ASes present in the Internet Routing Table: 700
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: 632370944
Equivalent to 37 /8s, 177 /16s and 55 /24s
Percentage of available APNIC address space announced: 80.2
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: 145585
Total ARIN prefixes after maximum aggregation: 74543
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 118044
Unique aggregates announced from the ARIN address blocks: 48956
ARIN Region origin ASes present in the Internet Routing Table: 14760
ARIN Prefixes per ASN: 8.00
ARIN Region origin ASes announcing only one prefix: 5666
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: 804790272
Equivalent to 47 /8s, 248 /16s and 32 /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: 95867
Total RIPE prefixes after maximum aggregation: 51893
RIPE Deaggregation factor: 1.85
Prefixes being announced from the RIPE address blocks: 87864
Unique aggregates announced from the RIPE address blocks: 55630
RIPE Region origin ASes present in the Internet Routing Table: 16225
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: 2567
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: 495805440
Equivalent to 29 /8s, 141 /16s and 100 /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: 36491
Total LACNIC prefixes after maximum aggregation: 7943
LACNIC Deaggregation factor: 4.59
Prefixes being announced from the LACNIC address blocks: 36201
Unique aggregates announced from the LACNIC address blocks: 19172
LACNIC Region origin ASes present in the Internet Routing Table: 1549
LACNIC Prefixes per ASN: 23.37
LACNIC Region origin ASes announcing only one prefix: 450
LACNIC Region transit ASes present in the Internet Routing Table: 274
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: 95187968
Equivalent to 5 /8s, 172 /16s and 116 /24s
Percentage of available LACNIC address space announced: 63.0
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: 8551
Total AfriNIC prefixes after maximum aggregation: 2060
AfriNIC Deaggregation factor: 4.15
Prefixes being announced from the AfriNIC address blocks: 6607
Unique aggregates announced from the AfriNIC address blocks: 2050
AfriNIC Region origin ASes present in the Internet Routing Table: 499
AfriNIC Prefixes per ASN: 13.24
AfriNIC Region origin ASes announcing only one prefix: 156
AfriNIC Region transit ASes present in the Internet Routing Table: 113
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: 30790912
Equivalent to 1 /8s, 213 /16s and 213 /24s
Percentage of available AfriNIC address space announced: 45.9
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 1898 11097 655 Korea Telecom (KIX)
17974 1629 503 37 PT Telekomunikasi Indonesia
7545 1626 303 85 TPG Internet Pty Ltd
4755 1499 385 157 TATA Communications formerly
9829 1170 989 28 National Internet Backbone
9583 1111 81 496 Sify Limited
7552 1100 1062 11 Vietel Corporation
24560 1006 383 163 Bharti Airtel Ltd., Telemedia
18101 976 131 157 Reliance Infocom Ltd Internet
4808 971 1945 274 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 3476 3814 218 BellSouth.net Inc.
7029 2963 1042 213 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
1785 1865 680 121 PaeTec Communications, Inc.
4323 1621 1081 386 tw telecom holdings, inc.
20115 1615 1551 619 Charter Communications
22773 1517 2909 107 Cox Communications Inc.
30036 1479 263 688 Mediacom Communications Corp
19262 1388 4683 401 Verizon Online LLC
7018 1313 7047 866 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 1482 480 15 Corbina telecom
15557 1092 2161 64 NEUF CEGETEL (formerly LDCOM
2118 672 99 14 EUnet/RELCOM Autonomous Syste
6830 643 1928 414 UPC Broadband
34984 635 132 197 BILISIM TELEKOM
20940 555 178 444 Akamai Technologies European
12479 552 636 53 France Telecom Espana SA
9116 541 326 32 Goldenlines main autonomous s
3320 530 8161 396 Deutsche Telekom AG
8551 506 360 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 1721 319 159 Types of queries are: POCs, o
28573 1562 1064 76 Types of queries are: POCs, o
8151 1317 2968 342 Uninet S.A. de C.V.
7303 1253 755 177 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 1039 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 2963 1042 213 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
4766 1898 11097 655 Korea Telecom (KIX)
1785 1865 680 121 PaeTec Communications, Inc.
10620 1721 319 159 Types of queries are: POCs, o
17974 1629 503 37 PT Telekomunikasi Indonesia
7545 1626 303 85 TPG Internet Pty Ltd
4323 1621 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 2963 2750 Windstream Communications Inc
18566 2094 1917 Covad Communications Co.
1785 1865 1744 PaeTec Communications, Inc.
17974 1629 1592 PT Telekomunikasi Indonesia
10620 1721 1562 Types of queries are: POCs, o
7545 1626 1541 TPG Internet Pty Ltd
28573 1562 1486 Types of queries are: POCs, o
8402 1482 1467 Corbina telecom
22773 1517 1410 Cox Communications Inc.
4755 1499 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
37.34.56.0/21 20857 TransIP BV
41.222.79.0/24 37345 MEDALLION Communications
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
/13:465 /14:813 /15:1448 /16:12044 /17:6113 /18:10165
/19:20283 /20:27925 /21:28270 /22:38388 /23:35615 /24:200561
/25:11 /26:21 /27:20 /28:154 /29:134 /30:67
/31:0 /32:136
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2575 2963 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 1461 1482 Corbina telecom
30036 1438 1479 Mediacom Communications Corp
11492 1115 1152 CABLE ONE, INC.
1785 1065 1865 PaeTec Communications, Inc.
7011 1051 1168 Frontier Communications of Am
15557 1042 1092 NEUF CEGETEL (formerly LDCOM
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:492 2:405 4:15 5:1 6:3 8:367
12:1946 13:1 14:576 15:11 16:3 17:7
20:9 23:85 24:1712 27:1163 31:833 32:62
33:2 34:2 36:4 37:13 38:788 40:114
41:3017 42:85 44:3 46:1161 47:3 49:296
50:500 52:13 55:5 56:2 57:37 58:895
59:479 60:339 61:1074 62:939 63:1964 64:4098
65:2300 66:4357 67:1995 68:1164 69:3142 70:921
71:411 72:1785 74:2645 75:432 76:321 77:921
78:882 79:499 80:1176 81:848 82:535 83:532
84:578 85:1167 86:754 87:912 88:349 89:1582
90:261 91:4401 92:534 93:1513 94:1339 95:1034
96:396 97:293 98:784 99:38 100:18 101:125
103:596 106:9 107:120 108:101 109:1423 110:680
111:837 112:409 113:495 114:595 115:710 116:854
117:698 118:892 119:1220 120:363 121:642 122:1584
123:1049 124:1303 125:1301 128:491 129:183 130:184
131:584 132:155 133:21 134:217 135:54 136:211
137:148 138:285 139:127 140:464 141:257 142:364
143:392 144:499 145:67 146:467 147:223 148:611
149:275 150:158 151:192 152:441 153:169 154:6
155:400 156:206 157:334 158:155 159:435 160:343
161:204 162:333 163:178 164:518 165:396 166:544
167:455 168:810 169:145 170:828 171:95 172:4
173:1789 174:586 175:414 176:333 177:447 178:1168
180:1214 181:43 182:673 183:264 184:421 185:1
186:1474 187:812 188:1007 189:1172 190:5323 192:5947
193:5449 194:3791 195:3192 196:1268 197:175 198:3569
199:4201 200:5500 201:1685 202:8287 203:8470 204:4263
205:2402 206:2620 207:2733 208:3997 209:3516 210:2668
211:1446 212:1983 213:1814 214:820 215:93 216:4884
217:1479 218:559 219:333 220:1210 221:543 222:297
223:249
End of report
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