Routing Table Report 08:00 +10GMT Sun 05 Feb, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 389340
Prefixes after maximum aggregation: 167425
Deaggregation factor: 2.33
Unique aggregates announced to Internet: 191797
Total ASes present in the Internet Routing Table: 37921
Prefixes per ASN: 10.27
Origin-only ASes present in the Internet Routing Table: 32666
Origin ASes announcing only one prefix: 15527
Transit ASes present in the Internet Routing Table: 5255
Transit-only ASes present in the Internet Routing Table: 128
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 1057
Unregistered ASNs in the Routing Table: 182
Number of 32-bit ASNs allocated by the RIRs: 2265
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4686
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 119
Number of addresses announced to Internet: 2528784128
Equivalent to 150 /8s, 186 /16s and 47 /24s
Percentage of available address space announced: 68.2
Percentage of allocated address space announced: 68.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.0
Total number of prefixes smaller than registry allocations: 163815
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92099
Total APNIC prefixes after maximum aggregation: 30182
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 89402
Unique aggregates announced from the APNIC address blocks: 39112
APNIC Region origin ASes present in the Internet Routing Table: 4589
APNIC Prefixes per ASN: 19.48
APNIC Region origin ASes announcing only one prefix: 1254
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: 16
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 635595008
Equivalent to 37 /8s, 226 /16s and 105 /24s
Percentage of available APNIC address space announced: 80.6
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: 146855
Total ARIN prefixes after maximum aggregation: 74906
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119106
Unique aggregates announced from the ARIN address blocks: 49264
ARIN Region origin ASes present in the Internet Routing Table: 14817
ARIN Prefixes per ASN: 8.04
ARIN Region origin ASes announcing only one prefix: 5675
ARIN Region transit ASes present in the Internet Routing Table: 1500
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 804335872
Equivalent to 47 /8s, 241 /16s and 49 /24s
Percentage of available ARIN address space announced: 63.9
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: 98365
Total RIPE prefixes after maximum aggregation: 52253
RIPE Deaggregation factor: 1.88
Prefixes being announced from the RIPE address blocks: 90228
Unique aggregates announced from the RIPE address blocks: 55879
RIPE Region origin ASes present in the Internet Routing Table: 16282
RIPE Prefixes per ASN: 5.54
RIPE Region origin ASes announcing only one prefix: 7999
RIPE Region transit ASes present in the Internet Routing Table: 2582
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 24
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 498640384
Equivalent to 29 /8s, 184 /16s and 166 /24s
Percentage of available RIPE address space announced: 80.3
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: 37667
Total LACNIC prefixes after maximum aggregation: 7933
LACNIC Deaggregation factor: 4.75
Prefixes being announced from the LACNIC address blocks: 37442
Unique aggregates announced from the LACNIC address blocks: 19443
LACNIC Region origin ASes present in the Internet Routing Table: 1556
LACNIC Prefixes per ASN: 24.06
LACNIC Region origin ASes announcing only one prefix: 440
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: 95919616
Equivalent to 5 /8s, 183 /16s and 158 /24s
Percentage of available LACNIC address space announced: 63.5
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: 8966
Total AfriNIC prefixes after maximum aggregation: 2079
AfriNIC Deaggregation factor: 4.31
Prefixes being announced from the AfriNIC address blocks: 7000
Unique aggregates announced from the AfriNIC address blocks: 2141
AfriNIC Region origin ASes present in the Internet Routing Table: 507
AfriNIC Prefixes per ASN: 13.81
AfriNIC Region origin ASes announcing only one prefix: 159
AfriNIC Region transit ASes present in the Internet Routing Table: 116
Average AfriNIC Region AS path length visible: 3.3
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: 30833408
Equivalent to 1 /8s, 214 /16s and 123 /24s
Percentage of available AfriNIC address space announced: 45.9
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 1912 11098 670 Korea Telecom (KIX)
7545 1640 303 86 TPG Internet Pty Ltd
17974 1639 503 36 PT Telekomunikasi Indonesia
4755 1515 385 157 TATA Communications formerly
9829 1169 989 28 National Internet Backbone
9583 1123 82 483 Sify Limited
7552 1095 1062 11 Vietel Corporation
24560 1014 385 167 Bharti Airtel Ltd., Telemedia
4808 982 1947 278 CNCGROUP IP network China169
18101 952 131 156 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 3444 3807 202 BellSouth.net Inc.
7029 3258 1043 213 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
1785 1868 680 124 PaeTec Communications, Inc.
20115 1626 1552 627 Charter Communications
4323 1608 1078 384 tw telecom holdings, inc.
22773 1498 2910 109 Cox Communications Inc.
30036 1428 253 750 Mediacom Communications Corp
19262 1384 4683 400 Verizon Online LLC
7018 1312 7040 857 AT&T Services, 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 1602 480 15 Corbina telecom
2118 1391 99 14 EUnet/RELCOM Autonomous Syste
15557 1096 2161 64 NEUF CEGETEL (formerly LDCOM
34984 644 188 171 BILISIM TELEKOM
6830 642 1927 412 UPC Broadband
20940 596 194 469 Akamai Technologies European
8551 576 360 81 Bezeq International
12479 557 642 54 France Telecom Espana SA
9116 541 326 32 Goldenlines main autonomous s
31148 536 37 9 FreeNet ISP
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 1735 323 170 Types of queries are: POCs, o
28573 1630 1085 69 Types of queries are: POCs, o
8151 1316 2976 338 Uninet S.A. de C.V.
7303 1260 757 180 Telecom Argentina S.A.
26615 814 616 33 Tim Celular S.A.
11172 699 111 76 Alestra, S. de R.L. de C.V.
27947 627 73 99 Telconet S.A
22047 581 322 17 Types of queries are: POCs, o
3816 552 238 91 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 1214 958 13 TEDATA
24863 831 155 40 LINKdotNET AS number
6713 485 649 18 Itissalat Al-MAGHRIB
3741 280 939 229 The Internet Solution
15706 238 32 6 Sudatel Internet Exchange Aut
33776 237 13 13 Starcomms Nigeria Limited
12258 197 28 62 Vodacom Internet Company
24835 193 80 8 RAYA Telecom - Egypt
29571 189 17 11 Ci Telecom Autonomous system
16637 160 664 85 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
6389 3444 3807 202 BellSouth.net Inc.
7029 3258 1043 213 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
4766 1912 11098 670 Korea Telecom (KIX)
1785 1868 680 124 PaeTec Communications, Inc.
10620 1735 323 170 Types of queries are: POCs, o
7545 1640 303 86 TPG Internet Pty Ltd
17974 1639 503 36 PT Telekomunikasi Indonesia
28573 1630 1085 69 Types of queries are: POCs, o
20115 1626 1552 627 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 3258 3045 Windstream Communications Inc
18566 2094 1917 Covad Communications Co.
1785 1868 1744 PaeTec Communications, Inc.
17974 1639 1603 PT Telekomunikasi Indonesia
8402 1602 1587 Corbina telecom
10620 1735 1565 Types of queries are: POCs, o
28573 1630 1561 Types of queries are: POCs, o
7545 1640 1554 TPG Internet Pty Ltd
22773 1498 1389 Cox Communications Inc.
2118 1391 1377 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
23.26.0.0/16 11798 Ace Data Centers, Inc.
37.77.176.0/21 16082 Spitfire Digital Networks Aut
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 /10:27 /11:80 /12:231
/13:458 /14:815 /15:1463 /16:12100 /17:6159 /18:10228
/19:20373 /20:28062 /21:28799 /22:39024 /23:36545 /24:204402
/25:11 /26:21 /27:19 /28:153 /29:133 /30:65
/31:0 /32:140
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2870 3258 Windstream Communications Inc
6389 2113 3444 BellSouth.net Inc.
18566 2043 2094 Covad Communications Co.
10620 1629 1735 Types of queries are: POCs, o
8402 1581 1602 Corbina telecom
30036 1386 1428 Mediacom Communications Corp
11492 1117 1154 CABLE ONE, INC.
1785 1064 1868 PaeTec Communications, Inc.
15557 1046 1096 NEUF CEGETEL (formerly LDCOM
7011 1033 1149 Frontier Communications of Am
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:496 2:450 4:14 5:1 6:3 8:379
12:1952 13:1 14:584 15:11 16:3 17:6
20:9 23:127 24:1721 27:1181 31:893 32:60
33:2 34:2 36:9 37:162 38:783 40:114
41:3164 42:91 44:3 46:1278 47:3 49:322
50:514 52:13 54:2 55:7 56:3 57:37
58:915 59:484 60:341 61:1085 62:928 63:1996
64:4121 65:2284 66:4407 67:2045 68:1166 69:3147
70:914 71:410 72:1794 74:2637 75:452 76:323
77:963 78:898 79:505 80:1221 81:865 82:567
83:537 84:582 85:1157 86:752 87:907 88:341
89:1539 90:253 91:4443 92:540 93:1541 94:1339
95:1094 96:412 97:310 98:804 99:38 100:20
101:139 103:727 106:3 107:143 108:145 109:1465
110:685 111:839 112:391 113:523 114:596 115:740
116:849 117:705 118:903 119:1236 120:354 121:647
122:1572 123:1069 124:1302 125:1312 128:494 129:181
130:208 131:586 132:163 133:21 134:221 135:59
136:212 137:150 138:285 139:144 140:461 141:260
142:360 143:395 144:510 145:70 146:479 147:228
148:702 149:273 150:161 151:196 152:444 153:170
154:6 155:406 156:208 157:335 158:156 159:440
160:328 161:226 162:338 163:178 164:528 165:395
166:556 167:456 168:760 169:146 170:829 171:108
172:2 173:1751 174:593 175:414 176:464 177:475
178:1247 180:1175 181:64 182:692 183:277 184:430
185:1 186:1959 187:849 188:1042 189:1177 190:5436
192:5932 193:5527 194:4328 195:3386 196:1274 197:180
198:3566 199:4324 200:5603 201:1730 202:8180 203:8498
204:4266 205:2423 206:2659 207:2745 208:4047 209:3532
210:2674 211:1446 212:1992 213:1832 214:848 215:92
216:4952 217:1467 218:539 219:337 220:1222 221:542
222:297 223:260
End of report
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