Routing Table Report 08:00 +10GMT Sat 24 Mar, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 395774
Prefixes after maximum aggregation: 169315
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 195274
Total ASes present in the Internet Routing Table: 38207
Prefixes per ASN: 10.36
Origin-only ASes present in the Internet Routing Table: 32941
Origin ASes announcing only one prefix: 15499
Transit ASes present in the Internet Routing Table: 5266
Transit-only ASes present in the Internet Routing Table: 120
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: 1337
Unregistered ASNs in the Routing Table: 314
Number of 32-bit ASNs allocated by the RIRs: 2330
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 5160
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 887
Number of addresses announced to Internet: 2545048576
Equivalent to 151 /8s, 178 /16s and 92 /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: 166779
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92916
Total APNIC prefixes after maximum aggregation: 30635
APNIC Deaggregation factor: 3.03
Prefixes being announced from the APNIC address blocks: 90326
Unique aggregates announced from the APNIC address blocks: 39440
APNIC Region origin ASes present in the Internet Routing Table: 4629
APNIC Prefixes per ASN: 19.51
APNIC Region origin ASes announcing only one prefix: 1256
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: 17
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 641179904
Equivalent to 38 /8s, 55 /16s and 161 /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: 147709
Total ARIN prefixes after maximum aggregation: 75297
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119433
Unique aggregates announced from the ARIN address blocks: 49859
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: 5665
ARIN Region transit ASes present in the Internet Routing Table: 1507
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: 805058816
Equivalent to 47 /8s, 252 /16s and 57 /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: 101688
Total RIPE prefixes after maximum aggregation: 53065
RIPE Deaggregation factor: 1.92
Prefixes being announced from the RIPE address blocks: 93153
Unique aggregates announced from the RIPE address blocks: 57144
RIPE Region origin ASes present in the Internet Routing Table: 16354
RIPE Prefixes per ASN: 5.70
RIPE Region origin ASes announcing only one prefix: 7982
RIPE Region transit ASes present in the Internet Routing Table: 2592
Average RIPE Region AS path length visible: 3.6
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: 502034944
Equivalent to 29 /8s, 236 /16s and 114 /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: 38495
Total LACNIC prefixes after maximum aggregation: 8021
LACNIC Deaggregation factor: 4.80
Prefixes being announced from the LACNIC address blocks: 38436
Unique aggregates announced from the LACNIC address blocks: 19746
LACNIC Region origin ASes present in the Internet Routing Table: 1564
LACNIC Prefixes per ASN: 24.58
LACNIC Region origin ASes announcing only one prefix: 435
LACNIC Region transit ASes present in the Internet Routing Table: 285
Average LACNIC Region AS path length visible: 3.9
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: 98540032
Equivalent to 5 /8s, 223 /16s and 154 /24s
Percentage of available LACNIC address space announced: 65.3
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: 8846
Total AfriNIC prefixes after maximum aggregation: 2109
AfriNIC Deaggregation factor: 4.19
Prefixes being announced from the AfriNIC address blocks: 6909
Unique aggregates announced from the AfriNIC address blocks: 2181
AfriNIC Region origin ASes present in the Internet Routing Table: 521
AfriNIC Prefixes per ASN: 13.26
AfriNIC Region origin ASes announcing only one prefix: 161
AfriNIC Region transit ASes present in the Internet Routing Table: 115
Average AfriNIC Region AS path length visible: 3.5
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: 31440384
Equivalent to 1 /8s, 223 /16s and 190 /24s
Percentage of available AfriNIC address space announced: 46.8
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 1929 11106 679 Korea Telecom (KIX)
17974 1675 502 63 PT Telekomunikasi Indonesia
7545 1652 303 89 TPG Internet Pty Ltd
4755 1555 385 159 TATA Communications formerly
9583 1234 94 539 Sify Limited
9829 1207 1025 29 National Internet Backbone
7552 1110 1062 11 Vietel Corporation
24560 1012 384 166 Bharti Airtel Ltd., Telemedia
4808 982 1945 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 1016 168 Windstream Communications Inc
6389 3373 3807 199 BellSouth.net Inc.
18566 2094 383 179 Covad Communications Co.
1785 1888 680 128 PaeTec Communications, Inc.
20115 1633 1559 626 Charter Communications
4323 1600 1076 382 tw telecom holdings, inc.
22773 1546 2910 111 Cox Communications Inc.
30036 1401 253 743 Mediacom Communications Corp
7018 1286 9808 841 AT&T Services, Inc.
11492 1165 212 413 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 1625 544 16 Corbina telecom
2118 1427 97 13 EUnet/RELCOM Autonomous Syste
15557 1034 2247 55 NEUF CEGETEL (formerly LDCOM
31148 672 37 9 FreeNet ISP
34984 665 188 173 BILISIM TELEKOM
6830 641 1943 412 UPC Broadband
12479 640 653 56 France Telecom Espana SA
20940 622 202 488 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
3320 532 8442 398 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 1807 329 130 Types of queries are: POCs, o
28573 1703 1099 60 Types of queries are: POCs, o
7303 1351 826 190 Telecom Argentina S.A.
8151 1350 2998 348 Uninet S.A. de C.V.
26615 901 684 29 Tim Celular S.A.
27947 665 69 111 Telconet S.A
11172 638 107 74 Alestra, S. de R.L. de C.V.
22047 584 326 15 Types of queries are: POCs, o
3816 565 239 96 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 1261 958 13 TEDATA
24863 841 274 34 LINKdotNET AS number
6713 490 649 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 178 80 8 RAYA Telecom - Egypt
33776 168 12 20 Starcomms Nigeria Limited
16637 161 664 84 MTN Network Solutions
36923 157 20 4 Swift Networks Limited
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 1016 168 Windstream Communications Inc
6389 3373 3807 199 BellSouth.net Inc.
18566 2094 383 179 Covad Communications Co.
4766 1929 11106 679 Korea Telecom (KIX)
1785 1888 680 128 PaeTec Communications, Inc.
10620 1807 329 130 Types of queries are: POCs, o
28573 1703 1099 60 Types of queries are: POCs, o
17974 1675 502 63 PT Telekomunikasi Indonesia
7545 1652 303 89 TPG Internet Pty Ltd
20115 1633 1559 626 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
6389 3373 3174 BellSouth.net Inc.
18566 2094 1915 Covad Communications Co.
1785 1888 1760 PaeTec Communications, Inc.
10620 1807 1677 Types of queries are: POCs, o
28573 1703 1643 Types of queries are: POCs, o
17974 1675 1612 PT Telekomunikasi Indonesia
8402 1625 1609 Corbina telecom
7545 1652 1563 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 /12:235
/13:458 /14:822 /15:1476 /16:12129 /17:6228 /18:10372
/19:20531 /20:28547 /21:29299 /22:39624 /23:37078 /24:208279
/25:11 /26:20 /27:20 /28:154 /29:142 /30:68
/31:0 /32:140
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3053 3410 Windstream Communications Inc
6389 2088 3373 BellSouth.net Inc.
18566 2043 2094 Covad Communications Co.
10620 1704 1807 Types of queries are: POCs, o
8402 1602 1625 Corbina telecom
30036 1349 1401 Mediacom Communications Corp
11492 1128 1165 CABLE ONE, INC.
8452 1071 1261 TEDATA
1785 1067 1888 PaeTec Communications, Inc.
7011 1049 1163 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 2:682 4:14 6:3 8:391 12:1973
13:1 14:596 15:12 16:3 17:7 20:8
23:147 24:1749 27:1239 31:960 32:57 33:2
34:2 36:8 37:303 38:775 40:120 41:3025
42:129 44:3 46:1456 47:3 49:339 50:533
52:13 54:6 55:10 56:3 57:35 58:913
59:485 60:274 61:1083 62:979 63:1987 64:4170
65:2273 66:4487 67:2004 68:1146 69:3181 70:901
71:437 72:1802 74:2593 75:491 76:320 77:961
78:969 79:499 80:1235 81:907 82:664 83:552
84:617 85:1191 86:728 87:917 88:343 89:1617
90:296 91:4613 92:519 93:1470 94:1454 95:1145
96:370 97:316 98:825 99:38 100:6 101:150
103:905 106:63 107:177 108:207 109:1552 110:736
111:898 112:431 113:546 114:623 115:761 116:884
117:704 118:905 119:1178 120:336 121:671 122:1621
123:1088 124:1297 125:1256 128:504 129:183 130:254
131:592 132:165 133:21 134:232 135:63 136:210
137:191 138:275 139:144 140:468 141:240 142:370
143:398 144:496 145:69 146:485 147:243 148:701
149:294 150:149 151:176 152:456 153:171 154:6
155:444 156:210 157:335 158:163 159:449 160:325
161:231 162:340 163:176 164:543 165:392 166:561
167:464 168:802 169:147 170:844 171:123 172:2
173:1713 174:620 175:422 176:462 177:589 178:1290
180:1114 181:73 182:743 183:277 184:441 185:1
186:2134 187:864 188:1144 189:1181 190:5513 192:5954
193:5598 194:4566 195:3637 196:1263 197:181 198:3574
199:4427 200:5660 201:1655 202:8198 203:8496 204:4273
205:2440 206:2650 207:2733 208:4000 209:3585 210:2683
211:1442 212:1991 213:1908 214:869 215:104 216:5044
217:1534 218:522 219:329 220:1226 221:536 222:297
223:312
End of report
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