Routing Table Report 08:00 +10GMT Mon 19 Mar, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 394473
Prefixes after maximum aggregation: 168911
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 194590
Total ASes present in the Internet Routing Table: 38156
Prefixes per ASN: 10.34
Origin-only ASes present in the Internet Routing Table: 32914
Origin ASes announcing only one prefix: 15515
Transit ASes present in the Internet Routing Table: 5242
Transit-only ASes present in the Internet Routing Table: 121
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: 1298
Unregistered ASNs in the Routing Table: 290
Number of 32-bit ASNs allocated by the RIRs: 2322
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 5017
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 697
Number of addresses announced to Internet: 2544315136
Equivalent to 151 /8s, 167 /16s and 43 /24s
Percentage of available address space announced: 68.6
Percentage of allocated address space announced: 68.6
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: 166021
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92707
Total APNIC prefixes after maximum aggregation: 30507
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 90085
Unique aggregates announced from the APNIC address blocks: 39191
APNIC Region origin ASes present in the Internet Routing Table: 4624
APNIC Prefixes per ASN: 19.48
APNIC Region origin ASes announcing only one prefix: 1258
APNIC Region transit ASes present in the Internet Routing Table: 697
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 17
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 640699904
Equivalent to 38 /8s, 48 /16s and 78 /24s
Percentage of available APNIC address space announced: 81.3
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: 147606
Total ARIN prefixes after maximum aggregation: 75221
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119401
Unique aggregates announced from the ARIN address blocks: 49818
ARIN Region origin ASes present in the Internet Routing Table: 14876
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5668
ARIN Region transit ASes present in the Internet Routing Table: 1504
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: 806620928
Equivalent to 48 /8s, 20 /16s and 15 /24s
Percentage of available ARIN address space announced: 64.1
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: 101114
Total RIPE prefixes after maximum aggregation: 52927
RIPE Deaggregation factor: 1.91
Prefixes being announced from the RIPE address blocks: 92654
Unique aggregates announced from the RIPE address blocks: 57026
RIPE Region origin ASes present in the Internet Routing Table: 16337
RIPE Prefixes per ASN: 5.67
RIPE Region origin ASes announcing only one prefix: 7984
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: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 501971200
Equivalent to 29 /8s, 235 /16s and 121 /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: 38442
Total LACNIC prefixes after maximum aggregation: 8005
LACNIC Deaggregation factor: 4.80
Prefixes being announced from the LACNIC address blocks: 38369
Unique aggregates announced from the LACNIC address blocks: 19662
LACNIC Region origin ASes present in the Internet Routing Table: 1563
LACNIC Prefixes per ASN: 24.55
LACNIC Region origin ASes announcing only one prefix: 438
LACNIC Region transit ASes present in the Internet Routing Table: 284
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: 98460160
Equivalent to 5 /8s, 222 /16s and 98 /24s
Percentage of available LACNIC address space announced: 65.2
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: 8676
Total AfriNIC prefixes after maximum aggregation: 2091
AfriNIC Deaggregation factor: 4.15
Prefixes being announced from the AfriNIC address blocks: 6825
Unique aggregates announced from the AfriNIC address blocks: 2174
AfriNIC Region origin ASes present in the Internet Routing Table: 518
AfriNIC Prefixes per ASN: 13.18
AfriNIC Region origin ASes announcing only one prefix: 167
AfriNIC Region transit ASes present in the Internet Routing Table: 116
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: 31471616
Equivalent to 1 /8s, 224 /16s and 56 /24s
Percentage of available AfriNIC address space announced: 46.9
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 1938 11107 685 Korea Telecom (KIX)
17974 1663 503 36 PT Telekomunikasi Indonesia
7545 1648 303 88 TPG Internet Pty Ltd
4755 1551 386 160 TATA Communications formerly
9583 1200 91 510 Sify Limited
9829 1189 1001 30 National Internet Backbone
7552 1105 1062 11 Vietel Corporation
24560 1013 384 166 Bharti Airtel Ltd., Telemedia
4808 982 1946 281 CNCGROUP IP network China169
18101 948 131 160 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
7029 3413 1032 171 Windstream Communications Inc
6389 3375 3807 198 BellSouth.net Inc.
18566 2094 383 179 Covad Communications Co.
1785 1884 680 126 PaeTec Communications, Inc.
20115 1630 1558 628 Charter Communications
4323 1599 1076 382 tw telecom holdings, inc.
22773 1546 2910 111 Cox Communications Inc.
30036 1397 252 743 Mediacom Communications Corp
7018 1283 9809 842 AT&T Services, Inc.
11492 1164 212 415 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 1693 544 16 Corbina telecom
2118 1427 97 13 EUnet/RELCOM Autonomous Syste
15557 1089 2247 55 NEUF CEGETEL (formerly LDCOM
34984 663 188 171 BILISIM TELEKOM
6830 640 1943 411 UPC Broadband
12479 634 653 67 France Telecom Espana SA
20940 617 200 487 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
31148 539 37 9 FreeNet ISP
3320 533 8442 399 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 1801 329 130 Types of queries are: POCs, o
28573 1699 1094 58 Types of queries are: POCs, o
8151 1334 2995 338 Uninet S.A. de C.V.
7303 1331 823 185 Telecom Argentina S.A.
26615 899 672 33 Tim Celular S.A.
27947 657 68 108 Telconet S.A
11172 637 107 74 Alestra, S. de R.L. de C.V.
22047 584 326 15 Types of queries are: POCs, o
3816 563 240 89 Types of queries are: POCs, o
7738 550 1050 31 Telecomunicacoes da Bahia S.A
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 1256 958 13 TEDATA
24863 841 274 34 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 271 923 228 The Internet Solution
15706 227 32 6 Sudatel Internet Exchange Aut
12258 197 28 62 Vodacom Internet Company
24835 182 80 8 RAYA Telecom - Egypt
36923 157 20 4 Swift Networks Limited
29571 155 15 16 Ci Telecom Autonomous system
16637 148 641 79 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
7029 3413 1032 171 Windstream Communications Inc
6389 3375 3807 198 BellSouth.net Inc.
18566 2094 383 179 Covad Communications Co.
4766 1938 11107 685 Korea Telecom (KIX)
1785 1884 680 126 PaeTec Communications, Inc.
10620 1801 329 130 Types of queries are: POCs, o
28573 1699 1094 58 Types of queries are: POCs, o
8402 1693 544 16 Corbina telecom
17974 1663 503 36 PT Telekomunikasi Indonesia
7545 1648 303 88 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
6389 3375 3177 BellSouth.net Inc.
18566 2094 1915 Covad Communications Co.
1785 1884 1758 PaeTec Communications, Inc.
8402 1693 1677 Corbina telecom
10620 1801 1671 Types of queries are: POCs, o
28573 1699 1641 Types of queries are: POCs, o
17974 1663 1627 PT Telekomunikasi Indonesia
7545 1648 1560 TPG Internet Pty Ltd
22773 1546 1435 Cox Communications Inc.
2118 1427 1414 EUnet/RELCOM Autonomous Syste
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
54439 UNALLOCATED 8.25.174.0/24 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,
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.
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
/13:458 /14:819 /15:1474 /16:12134 /17:6230 /18:10355
/19:20507 /20:28493 /21:29215 /22:39460 /23:36968 /24:207439
/25:11 /26:21 /27:19 /28:151 /29:139 /30:68
/31:0 /32:135
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3052 3413 Windstream Communications Inc
6389 2089 3375 BellSouth.net Inc.
18566 2043 2094 Covad Communications Co.
10620 1698 1801 Types of queries are: POCs, o
8402 1670 1693 Corbina telecom
30036 1346 1397 Mediacom Communications Corp
11492 1127 1164 CABLE ONE, INC.
8452 1068 1256 TEDATA
1785 1065 1884 PaeTec Communications, Inc.
7011 1037 1150 Frontier Communications of Am
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:530 2:751 4:14 6:3 8:394 12:1973
13:1 14:591 15:11 16:3 17:7 20:8
23:144 24:1748 27:1236 31:947 32:57 33:2
34:2 36:8 37:281 38:769 40:122 41:2986
42:128 44:3 46:1419 47:3 49:339 50:515
52:13 54:5 55:6 56:3 57:34 58:907
59:487 60:274 61:1083 62:979 63:2011 64:4143
65:2283 66:4494 67:2001 68:1158 69:3167 70:898
71:389 72:1780 74:2586 75:489 76:319 77:962
78:976 79:491 80:1203 81:891 82:634 83:553
84:585 85:1187 86:735 87:912 88:334 89:1568
90:288 91:4605 92:517 93:1451 94:1391 95:1109
96:369 97:316 98:819 99:38 100:6 101:146
103:876 106:63 107:173 108:202 109:1530 110:727
111:876 112:429 113:543 114:626 115:765 116:839
117:703 118:903 119:1185 120:334 121:669 122:1587
123:1085 124:1298 125:1272 128:510 129:181 130:257
131:590 132:162 133:21 134:231 135:63 136:210
137:183 138:275 139:144 140:467 141:240 142:373
143:412 144:494 145:69 146:482 147:243 148:703
149:299 150:151 151:176 152:453 153:171 154:6
155:443 156:209 157:335 158:163 159:448 160:326
161:228 162:340 163:176 164:529 165:396 166:562
167:462 168:796 169:147 170:840 171:121 172:4
173:1716 174:597 175:422 176:417 177:567 178:1287
180:1120 181:73 182:765 183:276 184:442 185:1
186:2131 187:847 188:1061 189:1209 190:5550 192:5949
193:5599 194:4562 195:3639 196:1246 197:176 198:3575
199:4422 200:5647 201:1643 202:8161 203:8499 204:4273
205:2450 206:2648 207:2728 208:4061 209:3572 210:2686
211:1438 212:1987 213:1899 214:856 215:104 216:5023
217:1522 218:524 219:335 220:1225 221:536 222:296
223:311
End of report
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