Routing Table Report 08:00 +10GMT Sat 04 Feb, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 389521
Prefixes after maximum aggregation: 167472
Deaggregation factor: 2.33
Unique aggregates announced to Internet: 191943
Total ASes present in the Internet Routing Table: 37923
Prefixes per ASN: 10.27
Origin-only ASes present in the Internet Routing Table: 32669
Origin ASes announcing only one prefix: 15526
Transit ASes present in the Internet Routing Table: 5254
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: 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: 2257
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4682
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 120
Number of addresses announced to Internet: 2529690624
Equivalent to 150 /8s, 200 /16s and 4 /24s
Percentage of available address space announced: 68.3
Percentage of allocated address space announced: 68.3
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: 163977
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92073
Total APNIC prefixes after maximum aggregation: 30183
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 89389
Unique aggregates announced from the APNIC address blocks: 39091
APNIC Region origin ASes present in the Internet Routing Table: 4588
APNIC Prefixes per ASN: 19.48
APNIC Region origin ASes announcing only one prefix: 1253
APNIC Region transit ASes present in the Internet Routing Table: 699
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: 635577856
Equivalent to 37 /8s, 226 /16s and 38 /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: 146909
Total ARIN prefixes after maximum aggregation: 74916
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119132
Unique aggregates announced from the ARIN address blocks: 49275
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: 5673
ARIN Region transit ASes present in the Internet Routing Table: 1499
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: 804337664
Equivalent to 47 /8s, 241 /16s and 56 /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: 98450
Total RIPE prefixes after maximum aggregation: 52262
RIPE Deaggregation factor: 1.88
Prefixes being announced from the RIPE address blocks: 90301
Unique aggregates announced from the RIPE address blocks: 55954
RIPE Region origin ASes present in the Internet Routing Table: 16284
RIPE Prefixes per ASN: 5.55
RIPE Region origin ASes announcing only one prefix: 8002
RIPE Region transit ASes present in the Internet Routing Table: 2583
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 22
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 498613504
Equivalent to 29 /8s, 184 /16s and 61 /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: 37696
Total LACNIC prefixes after maximum aggregation: 7962
LACNIC Deaggregation factor: 4.73
Prefixes being announced from the LACNIC address blocks: 37476
Unique aggregates announced from the LACNIC address blocks: 19457
LACNIC Region origin ASes present in the Internet Routing Table: 1558
LACNIC Prefixes per ASN: 24.05
LACNIC Region origin ASes announcing only one prefix: 440
LACNIC Region transit ASes present in the Internet Routing Table: 286
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: 95971840
Equivalent to 5 /8s, 184 /16s and 106 /24s
Percentage of available LACNIC address space announced: 63.6
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: 9002
Total AfriNIC prefixes after maximum aggregation: 2077
AfriNIC Deaggregation factor: 4.33
Prefixes being announced from the AfriNIC address blocks: 7031
Unique aggregates announced from the AfriNIC address blocks: 2139
AfriNIC Region origin ASes present in the Internet Routing Table: 507
AfriNIC Prefixes per ASN: 13.87
AfriNIC Region origin ASes announcing only one prefix: 158
AfriNIC Region transit ASes present in the Internet Routing Table: 114
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: 30865408
Equivalent to 1 /8s, 214 /16s and 248 /24s
Percentage of available AfriNIC address space announced: 46.0
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 1641 303 87 TPG Internet Pty Ltd
17974 1631 503 36 PT Telekomunikasi Indonesia
4755 1515 385 157 TATA Communications formerly
9829 1167 989 28 National Internet Backbone
9583 1123 82 483 Sify Limited
7552 1095 1062 11 Vietel Corporation
24560 1010 384 167 Bharti Airtel Ltd., Telemedia
4808 984 1947 279 CNCGROUP IP network China169
18101 935 131 156 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 3445 3807 202 BellSouth.net Inc.
7029 3255 1043 213 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
1785 1867 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 1435 253 741 Mediacom Communications Corp
19262 1385 4683 400 Verizon Online LLC
7018 1314 7040 859 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 1609 480 15 Corbina telecom
2118 1391 99 14 EUnet/RELCOM Autonomous Syste
15557 1096 2161 64 NEUF CEGETEL (formerly LDCOM
6830 642 1927 412 UPC Broadband
34984 642 188 171 BILISIM TELEKOM
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 532 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 1626 1085 69 Types of queries are: POCs, o
8151 1315 2976 341 Uninet S.A. de C.V.
7303 1260 757 180 Telecom Argentina S.A.
26615 885 624 33 Tim Celular S.A.
11172 698 111 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 1213 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
29571 214 17 12 Ci Telecom Autonomous system
12258 197 28 62 Vodacom Internet Company
24835 193 80 8 RAYA Telecom - Egypt
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 3445 3807 202 BellSouth.net Inc.
7029 3255 1043 213 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
4766 1912 11098 670 Korea Telecom (KIX)
1785 1867 680 124 PaeTec Communications, Inc.
10620 1735 323 170 Types of queries are: POCs, o
7545 1641 303 87 TPG Internet Pty Ltd
17974 1631 503 36 PT Telekomunikasi Indonesia
20115 1626 1552 627 Charter Communications
28573 1626 1085 69 Types of queries are: POCs, o
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 3255 3042 Windstream Communications Inc
18566 2094 1917 Covad Communications Co.
1785 1867 1743 PaeTec Communications, Inc.
17974 1631 1595 PT Telekomunikasi Indonesia
8402 1609 1594 Corbina telecom
10620 1735 1565 Types of queries are: POCs, o
28573 1626 1557 Types of queries are: POCs, o
7545 1641 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
14.192.8.0/22 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
14.192.28.0/22 45464 Room 201, TGU Bldg
37.77.128.0/21 8492 Siris
37.77.152.0/21 44176 Jarsat s.c. Jaroslaw i Elzbie
37.77.176.0/21 16082 Spitfire Digital Networks Aut
37.77.208.0/20 28929 Tiziano D'Inca' - AS
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 /10:27 /11:80 /12:232
/13:458 /14:815 /15:1463 /16:12093 /17:6156 /18:10230
/19:20371 /20:28042 /21:28812 /22:39034 /23:36561 /24:204566
/25:11 /26:21 /27:20 /28:154 /29:136 /30:66
/31:0 /32:141
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2867 3255 Windstream Communications Inc
6389 2114 3445 BellSouth.net Inc.
18566 2043 2094 Covad Communications Co.
10620 1629 1735 Types of queries are: POCs, o
8402 1588 1609 Corbina telecom
30036 1394 1435 Mediacom Communications Corp
11492 1117 1154 CABLE ONE, INC.
1785 1063 1867 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)
----------------------------------------------
1:497 2:451 4:14 5:1 6:3 8:378
12:1953 13:1 14:589 15:11 16:3 17:6
20:9 23:127 24:1721 27:1179 31:898 32:60
33:2 34:2 36:9 37:161 38:784 40:114
41:3177 42:92 44:3 46:1278 47:3 49:307
50:514 52:13 54:2 55:6 56:3 57:37
58:912 59:481 60:341 61:1086 62:928 63:1996
64:4121 65:2286 66:4409 67:2043 68:1166 69:3148
70:913 71:409 72:1795 74:2644 75:451 76:323
77:960 78:902 79:495 80:1222 81:876 82:567
83:537 84:581 85:1163 86:753 87:910 88:341
89:1538 90:253 91:4470 92:540 93:1539 94:1339
95:1108 96:412 97:310 98:812 99:38 100:20
101:139 103:724 106:3 107:143 108:144 109:1466
110:685 111:835 112:415 113:523 114:596 115:739
116:846 117:705 118:904 119:1237 120:354 121:647
122:1588 123:1063 124:1300 125:1312 128:495 129:181
130:207 131:587 132:163 133:21 134:221 135:59
136:212 137:150 138:285 139:144 140:463 141:260
142:360 143:397 144:506 145:70 146:478 147:230
148:701 149:273 150:161 151:196 152:444 153:170
154:6 155:413 156:208 157:335 158:156 159:439
160:329 161:226 162:338 163:179 164:528 165:399
166:556 167:456 168:760 169:145 170:833 171:111
172:4 173:1759 174:591 175:414 176:464 177:478
178:1246 180:1175 181:64 182:692 183:277 184:429
185:1 186:2026 187:855 188:1031 189:1171 190:5410
192:5939 193:5528 194:4330 195:3385 196:1275 197:180
198:3569 199:4324 200:5601 201:1722 202:8189 203:8499
204:4269 205:2426 206:2660 207:2747 208:4046 209:3532
210:2673 211:1446 212:1989 213:1836 214:851 215:91
216:4953 217:1473 218:540 219:336 220:1211 221:542
222:294 223:258
End of report
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