Routing Table Report 08:00 +10GMT Wed 21 Dec, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 381203
Prefixes after maximum aggregation: 166044
Deaggregation factor: 2.30
Unique aggregates announced to Internet: 189225
Total ASes present in the Internet Routing Table: 37709
Prefixes per ASN: 10.11
Origin-only ASes present in the Internet Routing Table: 32487
Origin ASes announcing only one prefix: 15527
Transit ASes present in the Internet Routing Table: 5222
Transit-only ASes present in the Internet Routing Table: 127
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: 2672
Unregistered ASNs in the Routing Table: 1072
Number of 32-bit ASNs allocated by the RIRs: 2106
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4216
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 91
Number of addresses announced to Internet: 2520283136
Equivalent to 150 /8s, 56 /16s and 120 /24s
Percentage of available address space announced: 68.0
Percentage of allocated address space announced: 68.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.8
Total number of prefixes smaller than registry allocations: 159544
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90788
Total APNIC prefixes after maximum aggregation: 29979
APNIC Deaggregation factor: 3.03
Prefixes being announced from the APNIC address blocks: 88187
Unique aggregates announced from the APNIC address blocks: 38595
APNIC Region origin ASes present in the Internet Routing Table: 4563
APNIC Prefixes per ASN: 19.33
APNIC Region origin ASes announcing only one prefix: 1263
APNIC Region transit ASes present in the Internet Routing Table: 706
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: 631666944
Equivalent to 37 /8s, 166 /16s and 121 /24s
Percentage of available APNIC address space announced: 80.1
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: 145407
Total ARIN prefixes after maximum aggregation: 74396
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 117784
Unique aggregates announced from the ARIN address blocks: 48761
ARIN Region origin ASes present in the Internet Routing Table: 14735
ARIN Prefixes per ASN: 7.99
ARIN Region origin ASes announcing only one prefix: 5651
ARIN Region transit ASes present in the Internet Routing Table: 1495
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: 804605952
Equivalent to 47 /8s, 245 /16s and 80 /24s
Percentage of available ARIN address space announced: 63.9
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: 95430
Total RIPE prefixes after maximum aggregation: 51647
RIPE Deaggregation factor: 1.85
Prefixes being announced from the RIPE address blocks: 87572
Unique aggregates announced from the RIPE address blocks: 55144
RIPE Region origin ASes present in the Internet Routing Table: 16201
RIPE Prefixes per ASN: 5.41
RIPE Region origin ASes announcing only one prefix: 8006
RIPE Region transit ASes present in the Internet Routing Table: 2572
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: 494610688
Equivalent to 29 /8s, 123 /16s and 41 /24s
Percentage of available RIPE address space announced: 79.7
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: 36230
Total LACNIC prefixes after maximum aggregation: 7898
LACNIC Deaggregation factor: 4.59
Prefixes being announced from the LACNIC address blocks: 35889
Unique aggregates announced from the LACNIC address blocks: 18917
LACNIC Region origin ASes present in the Internet Routing Table: 1545
LACNIC Prefixes per ASN: 23.23
LACNIC Region origin ASes announcing only one prefix: 450
LACNIC Region transit ASes present in the Internet Routing Table: 272
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: 94958336
Equivalent to 5 /8s, 168 /16s and 243 /24s
Percentage of available LACNIC address space announced: 62.9
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: 8428
Total AfriNIC prefixes after maximum aggregation: 2055
AfriNIC Deaggregation factor: 4.10
Prefixes being announced from the AfriNIC address blocks: 6488
Unique aggregates announced from the AfriNIC address blocks: 2059
AfriNIC Region origin ASes present in the Internet Routing Table: 497
AfriNIC Prefixes per ASN: 13.05
AfriNIC Region origin ASes announcing only one prefix: 157
AfriNIC Region transit ASes present in the Internet Routing Table: 109
Average AfriNIC Region AS path length visible: 3.3
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: 30830848
Equivalent to 1 /8s, 214 /16s and 113 /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 1926 11099 661 Korea Telecom (KIX)
17974 1637 503 38 PT Telekomunikasi Indonesia
7545 1625 303 85 TPG Internet Pty Ltd
4755 1504 386 159 TATA Communications formerly
9829 1168 989 28 National Internet Backbone
9583 1101 81 494 Sify Limited
7552 1011 1062 11 Vietel Corporation
24560 996 385 167 Bharti Airtel Ltd., Telemedia
18101 969 130 156 Reliance Infocom Ltd Internet
4808 961 1949 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 220 BellSouth.net Inc.
7029 2951 1042 213 Windstream Communications Inc
18566 2094 383 177 Covad Communications Co.
1785 1860 681 122 PaeTec Communications, Inc.
4323 1618 1081 386 tw telecom holdings, inc.
20115 1604 1550 621 Charter Communications
22773 1511 2909 105 Cox Communications Inc.
30036 1463 260 682 Mediacom Communications Corp
19262 1388 4683 401 Verizon Online LLC
7018 1312 7045 865 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 1487 480 15 Corbina telecom
2118 1097 99 14 EUnet/RELCOM Autonomous Syste
15557 1092 2161 64 NEUF CEGETEL (formerly LDCOM
6830 648 1928 413 UPC Broadband
34984 625 132 196 BILISIM TELEKOM
20940 549 176 441 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
12479 537 630 48 France Telecom Espana SA
3320 531 8162 397 Deutsche Telekom AG
3292 481 2106 408 TDC Data Networks
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 1718 318 156 Types of queries are: POCs, o
28573 1566 1064 75 Types of queries are: POCs, o
8151 1314 2962 344 Uninet S.A. de C.V.
7303 1246 752 176 Telecom Argentina S.A.
27947 608 73 94 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 89 Types of queries are: POCs, o
11172 530 102 97 Alestra, S. de R.L. de C.V.
6503 528 434 69 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 1036 958 13 TEDATA
24863 786 146 33 LINKdotNET AS number
3741 281 939 230 The Internet Solution
6713 243 647 17 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 188 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 220 BellSouth.net Inc.
7029 2951 1042 213 Windstream Communications Inc
18566 2094 383 177 Covad Communications Co.
4766 1926 11099 661 Korea Telecom (KIX)
1785 1860 681 122 PaeTec Communications, Inc.
10620 1718 318 156 Types of queries are: POCs, o
17974 1637 503 38 PT Telekomunikasi Indonesia
7545 1625 303 85 TPG Internet Pty Ltd
4323 1618 1081 386 tw telecom holdings, inc.
20115 1604 1550 621 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 2951 2738 Windstream Communications Inc
18566 2094 1917 Covad Communications Co.
1785 1860 1738 PaeTec Communications, Inc.
17974 1637 1599 PT Telekomunikasi Indonesia
10620 1718 1562 Types of queries are: POCs, o
7545 1625 1540 TPG Internet Pty Ltd
28573 1566 1491 Types of queries are: POCs, o
8402 1487 1472 Corbina telecom
22773 1511 1406 Cox Communications Inc.
4755 1504 1345 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
37.17.0.0/17 42772 RIPE Network Coordination Cen
37.17.208.0/20 28878 Signet B.V.
37.17.232.0/21 13030 Init7 Global Backbone
37.17.240.0/21 35362 Best ISP
37.17.248.0/21 8473 Bahnhof Autonomous System
41.222.79.0/24 36938 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV
62.61.221.0/24 24974 Tachyon Europe BV
64.21.192.0/20 11610 Internet Nebraska Corporation
64.21.212.0/22 11610 Internet Nebraska Corporation
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 /14:812 /15:1445 /16:12009 /17:6103 /18:10144
/19:20220 /20:27840 /21:28132 /22:37944 /23:35510 /24:199655
/25:11 /26:21 /27:20 /28:154 /29:135 /30:67
/31:0 /32:138
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2563 2951 Windstream Communications Inc
6389 2120 3476 BellSouth.net Inc.
18566 2043 2094 Covad Communications Co.
10620 1613 1718 Types of queries are: POCs, o
8402 1466 1487 Corbina telecom
30036 1423 1463 Mediacom Communications Corp
11492 1115 1152 CABLE ONE, INC.
1785 1060 1860 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)
----------------------------------------------
1:470 2:403 4:15 5:1 6:3 8:360
12:1939 13:1 14:562 15:11 16:3 17:7
20:9 23:76 24:1711 27:1116 31:735 32:62
33:2 34:2 36:4 37:1 38:768 40:114
41:2994 42:77 44:3 46:1140 47:3 49:279
50:469 52:13 55:5 56:2 57:41 58:877
59:481 60:339 61:1070 62:932 63:1959 64:4090
65:2303 66:4362 67:2006 68:1169 69:3123 70:917
71:408 72:1785 74:2641 75:432 76:320 77:929
78:848 79:449 80:1173 81:848 82:539 83:532
84:572 85:1164 86:748 87:906 88:342 89:1577
90:247 91:4361 92:540 93:1516 94:1329 95:1034
96:392 97:287 98:780 99:38 100:1 101:129
103:564 106:10 107:114 108:100 109:1416 110:674
111:816 112:368 113:498 114:591 115:685 116:867
117:697 118:883 119:1226 120:353 121:644 122:1560
123:1021 124:1295 125:1296 128:472 129:181 130:178
131:583 132:154 133:21 134:216 135:54 136:211
137:148 138:286 139:122 140:467 141:255 142:365
143:385 144:498 145:67 146:466 147:223 148:612
149:267 150:157 151:192 152:443 153:170 154:6
155:400 156:207 157:332 158:155 159:430 160:341
161:204 162:360 163:176 164:518 165:395 166:543
167:457 168:804 169:145 170:829 171:95 172:4
173:1798 174:595 175:414 176:315 177:422 178:1133
180:1138 181:39 182:660 183:262 184:407 185:1
186:1411 187:776 188:956 189:1173 190:5266 192:5936
193:5193 194:4278 195:3362 196:1269 197:165 198:3566
199:4184 200:5445 201:1714 202:8263 203:8428 204:4266
205:2395 206:2576 207:2772 208:4004 209:3542 210:2675
211:1445 212:1984 213:1797 214:803 215:93 216:4892
217:1505 218:559 219:331 220:1222 221:509 222:296
223:252
End of report
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