Routing Table Report 08:00 +10GMT Tue 31 Jan, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 388185
Prefixes after maximum aggregation: 167227
Deaggregation factor: 2.32
Unique aggregates announced to Internet: 191594
Total ASes present in the Internet Routing Table: 37896
Prefixes per ASN: 10.24
Origin-only ASes present in the Internet Routing Table: 32642
Origin ASes announcing only one prefix: 15522
Transit ASes present in the Internet Routing Table: 5254
Transit-only ASes present in the Internet Routing Table: 123
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 1058
Unregistered ASNs in the Routing Table: 184
Number of 32-bit ASNs allocated by the RIRs: 2237
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4609
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 114
Number of addresses announced to Internet: 2528981760
Equivalent to 150 /8s, 189 /16s and 51 /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: 163009
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92200
Total APNIC prefixes after maximum aggregation: 30140
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 89491
Unique aggregates announced from the APNIC address blocks: 39077
APNIC Region origin ASes present in the Internet Routing Table: 4590
APNIC Prefixes per ASN: 19.50
APNIC Region origin ASes announcing only one prefix: 1258
APNIC Region transit ASes present in the Internet Routing Table: 703
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: 634824960
Equivalent to 37 /8s, 214 /16s and 169 /24s
Percentage of available APNIC address space announced: 80.5
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: 146746
Total ARIN prefixes after maximum aggregation: 74791
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119006
Unique aggregates announced from the ARIN address blocks: 49106
ARIN Region origin ASes present in the Internet Routing Table: 14795
ARIN Prefixes per ASN: 8.04
ARIN Region origin ASes announcing only one prefix: 5663
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: 804368896
Equivalent to 47 /8s, 241 /16s and 178 /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: 97916
Total RIPE prefixes after maximum aggregation: 52169
RIPE Deaggregation factor: 1.88
Prefixes being announced from the RIPE address blocks: 89804
Unique aggregates announced from the RIPE address blocks: 55965
RIPE Region origin ASes present in the Internet Routing Table: 16284
RIPE Prefixes per ASN: 5.51
RIPE Region origin ASes announcing only one prefix: 8004
RIPE Region transit ASes present in the Internet Routing Table: 2585
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 498516736
Equivalent to 29 /8s, 182 /16s and 195 /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: 37005
Total LACNIC prefixes after maximum aggregation: 7972
LACNIC Deaggregation factor: 4.64
Prefixes being announced from the LACNIC address blocks: 36774
Unique aggregates announced from the LACNIC address blocks: 19369
LACNIC Region origin ASes present in the Internet Routing Table: 1557
LACNIC Prefixes per ASN: 23.62
LACNIC Region origin ASes announcing only one prefix: 441
LACNIC Region transit ASes present in the Internet Routing Table: 282
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 22
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 95848704
Equivalent to 5 /8s, 182 /16s and 137 /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: 8999
Total AfriNIC prefixes after maximum aggregation: 2083
AfriNIC Deaggregation factor: 4.32
Prefixes being announced from the AfriNIC address blocks: 7041
Unique aggregates announced from the AfriNIC address blocks: 2154
AfriNIC Region origin ASes present in the Internet Routing Table: 505
AfriNIC Prefixes per ASN: 13.94
AfriNIC Region origin ASes announcing only one prefix: 156
AfriNIC Region transit ASes present in the Internet Routing Table: 115
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: 30881536
Equivalent to 1 /8s, 215 /16s and 55 /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 1913 11098 670 Korea Telecom (KIX)
7545 1640 303 87 TPG Internet Pty Ltd
17974 1634 503 35 PT Telekomunikasi Indonesia
4755 1513 385 156 TATA Communications formerly
9829 1166 989 28 National Internet Backbone
9583 1118 81 483 Sify Limited
7552 1115 1062 11 Vietel Corporation
24560 1014 385 167 Bharti Airtel Ltd., Telemedia
4808 982 1947 278 CNCGROUP IP network China169
18101 950 131 156 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 3260 1043 213 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
1785 1867 680 124 PaeTec Communications, Inc.
20115 1623 1552 628 Charter Communications
4323 1604 1078 382 tw telecom holdings, inc.
22773 1520 2910 109 Cox Communications Inc.
19262 1385 4683 400 Verizon Online LLC
30036 1335 233 743 Mediacom Communications Corp
7018 1313 7042 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 1631 480 15 Corbina telecom
2118 1241 99 14 EUnet/RELCOM Autonomous Syste
15557 1095 2161 64 NEUF CEGETEL (formerly LDCOM
6830 642 1927 412 UPC Broadband
34984 640 188 171 BILISIM TELEKOM
20940 595 194 468 Akamai Technologies European
8551 574 360 81 Bezeq International
12479 555 641 56 France Telecom Espana SA
9116 541 326 32 Goldenlines main autonomous s
3320 531 8162 397 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 1724 321 175 Types of queries are: POCs, o
28573 1630 1085 71 Types of queries are: POCs, o
8151 1315 2972 341 Uninet S.A. de C.V.
7303 1257 756 179 Telecom Argentina S.A.
11172 688 111 72 Alestra, S. de R.L. de C.V.
27947 627 73 99 Telconet S.A
22047 582 322 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
6503 528 434 69 Axtel, S.A.B. de C.V.
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 1238 958 13 TEDATA
24863 830 155 40 LINKdotNET AS number
6713 487 649 18 Itissalat Al-MAGHRIB
3741 280 939 229 The Internet Solution
15706 238 32 6 Sudatel Internet Exchange Aut
33776 232 12 18 Starcomms Nigeria Limited
29571 214 17 12 Ci Telecom Autonomous system
12258 197 28 62 Vodacom Internet Company
24835 190 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 3260 1043 213 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
4766 1913 11098 670 Korea Telecom (KIX)
1785 1867 680 124 PaeTec Communications, Inc.
10620 1724 321 175 Types of queries are: POCs, o
7545 1640 303 87 TPG Internet Pty Ltd
17974 1634 503 35 PT Telekomunikasi Indonesia
8402 1631 480 15 Corbina telecom
28573 1630 1085 71 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 3260 3047 Windstream Communications Inc
18566 2094 1917 Covad Communications Co.
1785 1867 1743 PaeTec Communications, Inc.
8402 1631 1616 Corbina telecom
17974 1634 1599 PT Telekomunikasi Indonesia
28573 1630 1559 Types of queries are: POCs, o
7545 1640 1553 TPG Internet Pty Ltd
10620 1724 1549 Types of queries are: POCs, o
22773 1520 1411 Cox Communications Inc.
4755 1513 1357 TATA Communications formerly
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
41.222.79.0/24 36938 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV
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 /14:816 /15:1461 /16:12094 /17:6142 /18:10210
/19:20343 /20:28027 /21:28796 /22:38979 /23:36510 /24:203428
/25:11 /26:21 /27:20 /28:153 /29:136 /30:66
/31:0 /32:143
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2872 3260 Windstream Communications Inc
6389 2114 3445 BellSouth.net Inc.
18566 2043 2094 Covad Communications Co.
10620 1619 1724 Types of queries are: POCs, o
8402 1610 1631 Corbina telecom
30036 1300 1335 Mediacom Communications Corp
11492 1117 1154 CABLE ONE, INC.
1785 1063 1867 PaeTec Communications, Inc.
15557 1046 1095 NEUF CEGETEL (formerly LDCOM
8452 1041 1238 TEDATA
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:510 2:450 4:14 5:1 6:3 8:377
12:1954 13:1 14:586 15:11 16:3 17:6
20:9 23:121 24:1720 27:1182 31:877 32:60
33:2 34:2 36:8 37:115 38:784 40:114
41:3186 42:88 44:3 46:1268 47:3 49:320
50:508 52:13 54:2 55:6 56:3 57:37
58:910 59:482 60:342 61:1086 62:922 63:1987
64:4121 65:2286 66:4412 67:2048 68:1167 69:3154
70:913 71:431 72:1801 74:2640 75:452 76:321
77:971 78:909 79:494 80:1208 81:874 82:565
83:530 84:578 85:1159 86:748 87:911 88:342
89:1530 90:258 91:4470 92:536 93:1543 94:1332
95:1102 96:409 97:297 98:799 99:38 100:20
101:131 103:691 106:3 107:140 108:128 109:1462
110:684 111:835 112:412 113:526 114:597 115:739
116:856 117:705 118:901 119:1233 120:354 121:651
122:1587 123:1059 124:1304 125:1312 128:504 129:181
130:206 131:586 132:154 133:21 134:224 135:59
136:211 137:149 138:285 139:144 140:462 141:259
142:360 143:394 144:505 145:68 146:481 147:228
148:674 149:270 150:159 151:194 152:444 153:170
154:6 155:413 156:207 157:336 158:156 159:437
160:330 161:221 162:338 163:178 164:528 165:393
166:563 167:457 168:761 169:146 170:834 171:116
172:4 173:1735 174:577 175:414 176:379 177:477
178:1239 180:1168 181:44 182:690 183:276 184:442
185:1 186:1518 187:828 188:980 189:1181 190:5392
192:5931 193:5488 194:4218 195:3386 196:1273 197:180
198:3561 199:4306 200:5601 201:1715 202:8192 203:8511
204:4265 205:2418 206:2656 207:2736 208:4054 209:3534
210:2671 211:1449 212:1986 213:1826 214:842 215:91
216:4958 217:1470 218:542 219:337 220:1222 221:542
222:297 223:258
End of report
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