Routing Table Report 08:00 +10GMT Tue 17 Apr, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 399110
Prefixes after maximum aggregation: 170327
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 197042
Total ASes present in the Internet Routing Table: 38345
Prefixes per ASN: 10.41
Origin-only ASes present in the Internet Routing Table: 33047
Origin ASes announcing only one prefix: 15620
Transit ASes present in the Internet Routing Table: 5298
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: 29
Max AS path prepend of ASN (51742) 24
Prefixes from unregistered ASNs in the Routing Table: 1196
Unregistered ASNs in the Routing Table: 219
Number of 32-bit ASNs allocated by the RIRs: 2584
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 5503
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 116
Number of addresses announced to Internet: 2554495744
Equivalent to 152 /8s, 66 /16s and 131 /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: 168618
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93908
Total APNIC prefixes after maximum aggregation: 30861
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 91389
Unique aggregates announced from the APNIC address blocks: 39606
APNIC Region origin ASes present in the Internet Routing Table: 4631
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: 705
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: 643205376
Equivalent to 38 /8s, 86 /16s and 137 /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: 148419
Total ARIN prefixes after maximum aggregation: 75638
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119956
Unique aggregates announced from the ARIN address blocks: 50259
ARIN Region origin ASes present in the Internet Routing Table: 14977
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: 807149824
Equivalent to 48 /8s, 28 /16s and 33 /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: 101675
Total RIPE prefixes after maximum aggregation: 53528
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 93625
Unique aggregates announced from the RIPE address blocks: 58075
RIPE Region origin ASes present in the Internet Routing Table: 16472
RIPE Prefixes per ASN: 5.68
RIPE Region origin ASes announcing only one prefix: 8037
RIPE Region transit ASes present in the Internet Routing Table: 2598
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: 509306368
Equivalent to 30 /8s, 91 /16s and 102 /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: 39901
Total LACNIC prefixes after maximum aggregation: 8113
LACNIC Deaggregation factor: 4.92
Prefixes being announced from the LACNIC address blocks: 39925
Unique aggregates announced from the LACNIC address blocks: 20155
LACNIC Region origin ASes present in the Internet Routing Table: 1573
LACNIC Prefixes per ASN: 25.38
LACNIC Region origin ASes announcing only one prefix: 437
LACNIC Region transit ASes present in the Internet Routing Table: 288
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 24
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 99248640
Equivalent to 5 /8s, 234 /16s and 106 /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: 8885
Total AfriNIC prefixes after maximum aggregation: 2119
AfriNIC Deaggregation factor: 4.19
Prefixes being announced from the AfriNIC address blocks: 6963
Unique aggregates announced from the AfriNIC address blocks: 2188
AfriNIC Region origin ASes present in the Internet Routing Table: 526
AfriNIC Prefixes per ASN: 13.24
AfriNIC Region origin ASes announcing only one prefix: 163
AfriNIC Region transit ASes present in the Internet Routing Table: 115
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: 31653120
Equivalent to 1 /8s, 226 /16s and 253 /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 1913 11110 696 Korea Telecom (KIX)
17974 1717 503 63 PT Telekomunikasi Indonesia
7545 1662 301 87 TPG Internet Pty Ltd
4755 1575 387 163 TATA Communications formerly
9583 1242 94 539 Sify Limited
9829 1230 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 947 131 159 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 3420 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 1597 1060 381 tw telecom holdings, inc.
22773 1575 2910 111 Cox Communications Inc.
30036 1428 260 749 Mediacom Communications Corp
7018 1281 9807 830 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 1616 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 654 661 62 France Telecom Espana SA
6830 640 1943 411 UPC Broadband
20940 626 205 495 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
3320 533 8442 399 Deutsche Telekom AG
8551 503 360 81 Bezeq International
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 1809 327 176 Types of queries are: POCs, o
28573 1775 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 1350 3002 343 Uninet S.A. de C.V.
26615 901 689 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 574 242 100 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 1303 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 197 12 21 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 159 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 3420 1016 169 Windstream Communications Inc
18566 2092 382 179 Covad Communications Co.
4766 1913 11110 696 Korea Telecom (KIX)
1785 1903 680 129 PaeTec Communications, Inc.
10620 1809 327 176 Types of queries are: POCs, o
28573 1775 1107 59 Types of queries are: POCs, o
17974 1717 503 63 PT Telekomunikasi Indonesia
7545 1662 301 87 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 3420 3251 Windstream Communications Inc
18566 2092 1913 Covad Communications Co.
1785 1903 1774 PaeTec Communications, Inc.
28573 1775 1716 Types of queries are: POCs, o
17974 1717 1654 PT Telekomunikasi Indonesia
10620 1809 1633 Types of queries are: POCs, o
8402 1616 1600 Corbina telecom
7545 1662 1575 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
37.244.0.0/19 8649 ZeXoTeK IT-Services GmbH
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 /15:1480 /16:12150 /17:6245 /18:10426
/19:20628 /20:28720 /21:29564 /22:40028 /23:37468 /24:210173
/25:11 /26:21 /27:20 /28:155 /29:142 /30:70
/31:0 /32:142
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3060 3420 Windstream Communications Inc
6389 2146 3429 BellSouth.net Inc.
18566 2041 2092 Covad Communications Co.
10620 1695 1809 Types of queries are: POCs, o
8402 1593 1616 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 1111 1303 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)
----------------------------------------------
1:532 2:664 4:14 6:3 8:402 12:1967
13:1 14:591 15:12 16:3 17:7 20:8
23:161 24:1762 27:1258 31:998 32:52 33:2
34:2 36:8 37:349 38:791 40:120 41:3108
42:134 44:3 46:1489 47:3 49:379 50:535
52:13 54:7 55:10 56:3 57:28 58:912
59:511 60:277 61:1153 62:970 63:1986 64:4138
65:2250 66:4481 67:2028 68:1150 69:3151 70:907
71:476 72:1816 74:2597 75:495 76:319 77:967
78:1001 79:487 80:1212 81:900 82:662 83:549
84:489 85:1198 86:412 87:928 88:349 89:1634
90:297 91:4720 92:521 93:1330 94:1472 95:1116
96:355 97:319 98:899 99:34 100:7 101:170
103:977 106:104 107:185 108:210 109:1290 110:738
111:919 112:443 113:578 114:618 115:865 116:878
117:698 118:901 119:1182 120:346 121:787 122:1631
123:1087 124:1304 125:1262 128:514 129:188 130:246
131:589 132:165 133:21 134:233 135:62 136:210
137:174 138:355 139:146 140:464 141:244 142:369
143:399 144:514 145:69 146:484 147:285 148:745
149:299 150:152 151:176 152:461 153:172 154:6
155:446 156:212 157:335 158:175 159:450 160:336
161:235 162:348 163:180 164:567 165:394 166:570
167:464 168:813 169:126 170:859 171:127 172:2
173:1745 174:584 175:417 176:487 177:668 178:1331
180:1164 181:73 182:780 183:286 184:450 185:1
186:2201 187:1034 188:1187 189:1784 190:5482 192:5962
193:5555 194:4638 195:3577 196:1248 197:117 198:3583
199:4457 200:5698 201:1922 202:8263 203:8513 204:4266
205:2475 206:2659 207:2712 208:4046 209:3560 210:2668
211:1453 212:1987 213:1907 214:831 215:101 216:5071
217:1542 218:527 219:337 220:1225 221:537 222:294
223:320
End of report
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