Routing Table Report 08:00 +10GMT Mon 16 Apr, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 398968
Prefixes after maximum aggregation: 170267
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 196762
Total ASes present in the Internet Routing Table: 38337
Prefixes per ASN: 10.41
Origin-only ASes present in the Internet Routing Table: 33039
Origin ASes announcing only one prefix: 15628
Transit ASes present in the Internet Routing Table: 5298
Transit-only ASes present in the Internet Routing Table: 131
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 29
Max AS path prepend of ASN (51742) 24
Prefixes from unregistered ASNs in the Routing Table: 1198
Unregistered ASNs in the Routing Table: 219
Number of 32-bit ASNs allocated by the RIRs: 2582
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 5445
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 112
Number of addresses announced to Internet: 2554108928
Equivalent to 152 /8s, 60 /16s and 156 /24s
Percentage of available address space announced: 68.9
Percentage of allocated address space announced: 68.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.3
Total number of prefixes smaller than registry allocations: 168704
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93840
Total APNIC prefixes after maximum aggregation: 30839
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 91289
Unique aggregates announced from the APNIC address blocks: 39552
APNIC Region origin ASes present in the Internet Routing Table: 4628
APNIC Prefixes per ASN: 19.73
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: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 643105792
Equivalent to 38 /8s, 85 /16s and 4 /24s
Percentage of available APNIC address space announced: 81.6
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: 148297
Total ARIN prefixes after maximum aggregation: 75584
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119878
Unique aggregates announced from the ARIN address blocks: 50161
ARIN Region origin ASes present in the Internet Routing Table: 14969
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5722
ARIN Region transit ASes present in the Internet Routing Table: 1513
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 29
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 807089408
Equivalent to 48 /8s, 27 /16s and 53 /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: 101678
Total RIPE prefixes after maximum aggregation: 53523
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 93615
Unique aggregates announced from the RIPE address blocks: 58036
RIPE Region origin ASes present in the Internet Routing Table: 16467
RIPE Prefixes per ASN: 5.69
RIPE Region origin ASes announcing only one prefix: 8042
RIPE Region transit ASes present in the Internet Routing Table: 2600
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: 509303552
Equivalent to 30 /8s, 91 /16s and 91 /24s
Percentage of available RIPE address space announced: 82.0
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: 39904
Total LACNIC prefixes after maximum aggregation: 8123
LACNIC Deaggregation factor: 4.91
Prefixes being announced from the LACNIC address blocks: 39903
Unique aggregates announced from the LACNIC address blocks: 20142
LACNIC Region origin ASes present in the Internet Routing Table: 1573
LACNIC Prefixes per ASN: 25.37
LACNIC Region origin ASes announcing only one prefix: 439
LACNIC Region transit ASes present in the Internet Routing Table: 289
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: 99181568
Equivalent to 5 /8s, 233 /16s and 100 /24s
Percentage of available LACNIC address space announced: 65.7
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: 9000
Total AfriNIC prefixes after maximum aggregation: 2129
AfriNIC Deaggregation factor: 4.23
Prefixes being announced from the AfriNIC address blocks: 7079
Unique aggregates announced from the AfriNIC address blocks: 2166
AfriNIC Region origin ASes present in the Internet Routing Table: 530
AfriNIC Prefixes per ASN: 13.36
AfriNIC Region origin ASes announcing only one prefix: 164
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: 31670784
Equivalent to 1 /8s, 227 /16s and 66 /24s
Percentage of available AfriNIC address space announced: 47.2
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 1924 11110 696 Korea Telecom (KIX)
17974 1718 503 63 PT Telekomunikasi Indonesia
7545 1658 301 88 TPG Internet Pty Ltd
4755 1575 387 163 TATA Communications formerly
9583 1242 94 539 Sify Limited
9829 1234 1041 30 National Internet Backbone
7552 1105 1062 11 Vietel Corporation
24560 1021 385 167 Bharti Airtel Ltd., Telemedia
4808 981 1946 285 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
6389 3429 3807 196 BellSouth.net Inc.
7029 3419 1016 169 Windstream Communications Inc
18566 2092 382 179 Covad Communications Co.
1785 1903 680 129 PaeTec Communications, Inc.
20115 1642 1565 619 Charter Communications
4323 1596 1060 381 tw telecom holdings, inc.
22773 1575 2910 111 Cox Communications Inc.
30036 1428 260 749 Mediacom Communications Corp
7018 1285 9807 834 AT&T Services, Inc.
11492 1186 216 364 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 1633 544 16 Corbina telecom
2118 1304 97 14 EUnet/RELCOM Autonomous Syste
31148 679 37 9 FreeNet ISP
34984 678 188 175 BILISIM TELEKOM
12479 653 661 62 France Telecom Espana SA
6830 640 1943 411 UPC Broadband
20940 625 203 493 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
3320 533 8442 399 Deutsche Telekom AG
2578 501 33 7 Demos, Moscow, Russia
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 1803 326 174 Types of queries are: POCs, o
28573 1776 1107 59 Types of queries are: POCs, o
6503 1522 418 66 Axtel, S.A.B. de C.V.
7303 1357 827 190 Telecom Argentina S.A.
8151 1348 3001 342 Uninet S.A. de C.V.
26615 903 697 32 Tim Celular S.A.
27947 666 74 99 Telconet S.A
11172 639 107 74 Alestra, S. de R.L. de C.V.
22047 582 326 15 Types of queries are: POCs, o
3816 575 242 100 Types of queries are: POCs, o
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 1302 958 13 TEDATA
24863 845 274 32 LINKdotNET AS number
6713 491 649 18 Itissalat Al-MAGHRIB
3741 265 921 223 The Internet Solution
12258 197 28 62 Vodacom Internet Company
33776 195 12 24 Starcomms Nigeria Limited
24835 179 80 8 RAYA Telecom - Egypt
15706 169 32 6 Sudatel Internet Exchange Aut
16637 161 666 86 MTN Network Solutions
29571 158 15 15 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
6389 3429 3807 196 BellSouth.net Inc.
7029 3419 1016 169 Windstream Communications Inc
18566 2092 382 179 Covad Communications Co.
4766 1924 11110 696 Korea Telecom (KIX)
1785 1903 680 129 PaeTec Communications, Inc.
10620 1803 326 174 Types of queries are: POCs, o
28573 1776 1107 59 Types of queries are: POCs, o
17974 1718 503 63 PT Telekomunikasi Indonesia
7545 1658 301 88 TPG Internet Pty Ltd
20115 1642 1565 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 3419 3250 Windstream Communications Inc
18566 2092 1913 Covad Communications Co.
1785 1903 1774 PaeTec Communications, Inc.
28573 1776 1717 Types of queries are: POCs, o
17974 1718 1655 PT Telekomunikasi Indonesia
10620 1803 1629 Types of queries are: POCs, o
8402 1633 1617 Corbina telecom
7545 1658 1570 TPG Internet Pty Ltd
22773 1575 1464 Cox Communications Inc.
6503 1522 1456 Axtel, S.A.B. de C.V.
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
27.112.114.0/24 23884 Proimage Engineering and Comm
41.222.79.0/24 36938 >>UNKNOWN<<
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
/13:460 /14:830 /15:1479 /16:12156 /17:6251 /18:10430
/19:20614 /20:28685 /21:29541 /22:39983 /23:37459 /24:210154
/25:11 /26:20 /27:20 /28:154 /29:140 /30:68
/31:0 /32:136
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3059 3419 Windstream Communications Inc
6389 2146 3429 BellSouth.net Inc.
18566 2041 2092 Covad Communications Co.
10620 1695 1803 Types of queries are: POCs, o
8402 1610 1633 Corbina telecom
30036 1374 1428 Mediacom Communications Corp
6503 1281 1522 Axtel, S.A.B. de C.V.
11492 1149 1186 CABLE ONE, INC.
8452 1110 1302 TEDATA
1785 1069 1903 PaeTec Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:529 2:674 4:14 6:3 8:402 12:1966
13:1 14:592 15:12 16:3 17:7 20:8
23:157 24:1764 27:1262 31:997 32:52 33:1
34:2 36:8 37:345 38:789 40:120 41:3178
42:134 44:3 46:1473 47:3 49:379 50:535
52:13 54:7 55:9 56:3 57:28 58:913
59:513 60:277 61:1158 62:979 63:1986 64:4137
65:2251 66:4485 67:2026 68:1150 69:3150 70:906
71:476 72:1817 74:2592 75:495 76:317 77:962
78:1000 79:485 80:1213 81:900 82:666 83:547
84:488 85:1198 86:413 87:927 88:351 89:1631
90:297 91:4717 92:521 93:1354 94:1469 95:1131
96:355 97:319 98:904 99:34 100:7 101:169
103:961 106:104 107:185 108:210 109:1305 110:728
111:915 112:441 113:578 114:616 115:841 116:874
117:698 118:899 119:1178 120:347 121:787 122:1632
123:1089 124:1304 125:1262 128:523 129:188 130:247
131:586 132:165 133:21 134:232 135:62 136:208
137:174 138:355 139:146 140:462 141:243 142:369
143:387 144:511 145:69 146:489 147:278 148:744
149:300 150:152 151:176 152:462 153:172 154:6
155:445 156:212 157:335 158:175 159:450 160:335
161:235 162:348 163:180 164:567 165:394 166:570
167:464 168:812 169:126 170:857 171:127 172:2
173:1742 174:587 175:418 176:488 177:660 178:1328
180:1155 181:73 182:772 183:285 184:452 185:1
186:2197 187:1029 188:1191 189:1790 190:5504 192:5958
193:5552 194:4636 195:3578 196:1259 197:121 198:3582
199:4449 200:5700 201:1922 202:8257 203:8499 204:4267
205:2467 206:2642 207:2708 208:4039 209:3562 210:2677
211:1452 212:2004 213:1908 214:830 215:103 216:5065
217:1537 218:528 219:336 220:1222 221:538 222:290
223:320
End of report
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