Routing Table Report 08:00 +10GMT Sat 17 Mar, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 394456
Prefixes after maximum aggregation: 168799
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 194627
Total ASes present in the Internet Routing Table: 38154
Prefixes per ASN: 10.34
Origin-only ASes present in the Internet Routing Table: 32898
Origin ASes announcing only one prefix: 15506
Transit ASes present in the Internet Routing Table: 5256
Transit-only ASes present in the Internet Routing Table: 123
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: 1295
Unregistered ASNs in the Routing Table: 286
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: 4999
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 689
Number of addresses announced to Internet: 2544691712
Equivalent to 151 /8s, 172 /16s and 234 /24s
Percentage of available address space announced: 68.7
Percentage of allocated address space announced: 68.7
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: 166026
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92719
Total APNIC prefixes after maximum aggregation: 30491
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 90119
Unique aggregates announced from the APNIC address blocks: 39235
APNIC Region origin ASes present in the Internet Routing Table: 4624
APNIC Prefixes per ASN: 19.49
APNIC Region origin ASes announcing only one prefix: 1255
APNIC Region transit ASes present in the Internet Routing Table: 702
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: 640640256
Equivalent to 38 /8s, 47 /16s and 101 /24s
Percentage of available APNIC address space announced: 81.2
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: 147489
Total ARIN prefixes after maximum aggregation: 75126
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119304
Unique aggregates announced from the ARIN address blocks: 49813
ARIN Region origin ASes present in the Internet Routing Table: 14873
ARIN Prefixes per ASN: 8.02
ARIN Region origin ASes announcing only one prefix: 5665
ARIN Region transit ASes present in the Internet Routing Table: 1508
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: 806587136
Equivalent to 48 /8s, 19 /16s and 139 /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: 101201
Total RIPE prefixes after maximum aggregation: 52930
RIPE Deaggregation factor: 1.91
Prefixes being announced from the RIPE address blocks: 92732
Unique aggregates announced from the RIPE address blocks: 57056
RIPE Region origin ASes present in the Internet Routing Table: 16339
RIPE Prefixes per ASN: 5.68
RIPE Region origin ASes announcing only one prefix: 7986
RIPE Region transit ASes present in the Internet Routing Table: 2575
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: 502130688
Equivalent to 29 /8s, 237 /16s and 232 /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: 38371
Total LACNIC prefixes after maximum aggregation: 7995
LACNIC Deaggregation factor: 4.80
Prefixes being announced from the LACNIC address blocks: 38272
Unique aggregates announced from the LACNIC address blocks: 19631
LACNIC Region origin ASes present in the Internet Routing Table: 1563
LACNIC Prefixes per ASN: 24.49
LACNIC Region origin ASes announcing only one prefix: 438
LACNIC Region transit ASes present in the Internet Routing Table: 283
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: 98415104
Equivalent to 5 /8s, 221 /16s and 178 /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: 8756
Total AfriNIC prefixes after maximum aggregation: 2102
AfriNIC Deaggregation factor: 4.17
Prefixes being announced from the AfriNIC address blocks: 6852
Unique aggregates announced from the AfriNIC address blocks: 2170
AfriNIC Region origin ASes present in the Internet Routing Table: 520
AfriNIC Prefixes per ASN: 13.18
AfriNIC Region origin ASes announcing only one prefix: 162
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: 31488768
Equivalent to 1 /8s, 224 /16s and 123 /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 1933 11106 682 Korea Telecom (KIX)
17974 1664 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 1009 384 166 Bharti Airtel Ltd., Telemedia
4808 982 1946 281 CNCGROUP IP network China169
18101 949 131 160 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 3410 1032 171 Windstream Communications Inc
6389 3376 3807 199 BellSouth.net Inc.
18566 2092 382 177 Covad Communications Co.
1785 1884 680 126 PaeTec Communications, Inc.
20115 1630 1558 628 Charter Communications
4323 1600 1076 383 tw telecom holdings, inc.
22773 1546 2910 111 Cox Communications Inc.
30036 1395 252 746 Mediacom Communications Corp
7018 1283 9809 843 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 1670 544 16 Corbina telecom
2118 1427 97 13 EUnet/RELCOM Autonomous Syste
15557 1089 2247 55 NEUF CEGETEL (formerly LDCOM
34984 664 188 171 BILISIM TELEKOM
6830 641 1943 412 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 531 8441 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 1792 328 136 Types of queries are: POCs, o
28573 1719 1094 58 Types of queries are: POCs, o
8151 1338 2996 340 Uninet S.A. de C.V.
7303 1331 823 185 Telecom Argentina S.A.
26615 900 676 30 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 1258 958 13 TEDATA
24863 839 274 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
33776 158 12 25 Starcomms Nigeria Limited
36923 157 20 4 Swift Networks Limited
29571 153 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
7029 3410 1032 171 Windstream Communications Inc
6389 3376 3807 199 BellSouth.net Inc.
18566 2092 382 177 Covad Communications Co.
4766 1933 11106 682 Korea Telecom (KIX)
1785 1884 680 126 PaeTec Communications, Inc.
10620 1792 328 136 Types of queries are: POCs, o
28573 1719 1094 58 Types of queries are: POCs, o
8402 1670 544 16 Corbina telecom
17974 1664 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 3376 3177 BellSouth.net Inc.
18566 2092 1915 Covad Communications Co.
1785 1884 1758 PaeTec Communications, Inc.
28573 1719 1661 Types of queries are: POCs, o
10620 1792 1656 Types of queries are: POCs, o
8402 1670 1654 Corbina telecom
17974 1664 1628 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
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
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 /16:12136 /17:6225 /18:10356
/19:20511 /20:28493 /21:29210 /22:39549 /23:36965 /24:207325
/25:11 /26:21 /27:19 /28:154 /29:141 /30:69
/31:0 /32:143
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3049 3410 Windstream Communications Inc
6389 2090 3376 BellSouth.net Inc.
18566 2041 2092 Covad Communications Co.
10620 1689 1792 Types of queries are: POCs, o
8402 1647 1670 Corbina telecom
30036 1344 1395 Mediacom Communications Corp
11492 1127 1164 CABLE ONE, INC.
8452 1068 1258 TEDATA
1785 1065 1884 PaeTec Communications, Inc.
7011 1038 1152 Frontier Communications of Am
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:529 2:740 4:14 6:3 8:394 12:1971
13:1 14:594 15:11 16:3 17:7 20:8
23:144 24:1747 27:1234 31:978 32:57 33:2
34:2 36:8 37:266 38:771 40:122 41:3000
42:128 44:3 46:1421 47:3 49:339 50:516
52:13 54:5 55:8 56:3 57:36 58:907
59:487 60:274 61:1080 62:976 63:2012 64:4143
65:2282 66:4476 67:2001 68:1158 69:3168 70:898
71:389 72:1780 74:2582 75:489 76:319 77:965
78:977 79:492 80:1218 81:890 82:638 83:546
84:598 85:1187 86:734 87:912 88:335 89:1567
90:288 91:4598 92:517 93:1438 94:1393 95:1109
96:369 97:316 98:817 99:38 100:6 101:146
103:884 106:63 107:173 108:202 109:1533 110:730
111:879 112:428 113:546 114:608 115:768 116:845
117:703 118:905 119:1183 120:334 121:665 122:1586
123:1088 124:1298 125:1271 128:511 129:181 130:257
131:592 132:162 133:21 134:229 135:63 136:210
137:182 138:275 139:143 140:467 141:241 142:371
143:412 144:497 145:69 146:484 147:241 148:704
149:299 150:151 151:176 152:453 153:171 154:6
155:446 156:210 157:335 158:163 159:448 160:329
161:228 162:338 163:176 164:529 165:394 166:561
167:462 168:797 169:147 170:843 171:121 172:4
173:1714 174:595 175:422 176:416 177:570 178:1287
180:1121 181:73 182:768 183:284 184:442 185:1
186:2113 187:830 188:1060 189:1206 190:5506 192:5954
193:5595 194:4564 195:3637 196:1260 197:169 198:3572
199:4408 200:5642 201:1644 202:8174 203:8498 204:4262
205:2442 206:2632 207:2727 208:4065 209:3553 210:2685
211:1438 212:1990 213:1879 214:855 215:104 216:5027
217:1525 218:524 219:335 220:1227 221:536 222:296
223:311
End of report
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