Routing Table Report 08:00 +10GMT Fri 27 Jan, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 387724
Prefixes after maximum aggregation: 167116
Deaggregation factor: 2.32
Unique aggregates announced to Internet: 191469
Total ASes present in the Internet Routing Table: 37899
Prefixes per ASN: 10.23
Origin-only ASes present in the Internet Routing Table: 32654
Origin ASes announcing only one prefix: 15527
Transit ASes present in the Internet Routing Table: 5245
Transit-only ASes present in the Internet Routing Table: 121
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: 1071
Unregistered ASNs in the Routing Table: 185
Number of 32-bit ASNs allocated by the RIRs: 2217
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4569
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 121
Number of addresses announced to Internet: 2529683200
Equivalent to 150 /8s, 199 /16s and 231 /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: 162741
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92119
Total APNIC prefixes after maximum aggregation: 30142
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 89412
Unique aggregates announced from the APNIC address blocks: 39105
APNIC Region origin ASes present in the Internet Routing Table: 4590
APNIC Prefixes per ASN: 19.48
APNIC Region origin ASes announcing only one prefix: 1258
APNIC Region transit ASes present in the Internet Routing Table: 706
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: 634769152
Equivalent to 37 /8s, 213 /16s and 207 /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: 146619
Total ARIN prefixes after maximum aggregation: 74770
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118855
Unique aggregates announced from the ARIN address blocks: 49168
ARIN Region origin ASes present in the Internet Routing Table: 14810
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5674
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: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 805069056
Equivalent to 47 /8s, 252 /16s and 97 /24s
Percentage of available ARIN address space announced: 64.0
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: 97756
Total RIPE prefixes after maximum aggregation: 52118
RIPE Deaggregation factor: 1.88
Prefixes being announced from the RIPE address blocks: 89711
Unique aggregates announced from the RIPE address blocks: 55836
RIPE Region origin ASes present in the Internet Routing Table: 16274
RIPE Prefixes per ASN: 5.51
RIPE Region origin ASes announcing only one prefix: 7993
RIPE Region transit ASes present in the Internet Routing Table: 2574
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: 498517504
Equivalent to 29 /8s, 182 /16s and 198 /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: 36999
Total LACNIC prefixes after maximum aggregation: 7930
LACNIC Deaggregation factor: 4.67
Prefixes being announced from the LACNIC address blocks: 36742
Unique aggregates announced from the LACNIC address blocks: 19337
LACNIC Region origin ASes present in the Internet Routing Table: 1556
LACNIC Prefixes per ASN: 23.61
LACNIC Region origin ASes announcing only one prefix: 443
LACNIC Region transit ASes present in the Internet Routing Table: 278
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: 95736576
Equivalent to 5 /8s, 180 /16s and 211 /24s
Percentage of available LACNIC address space announced: 63.4
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: 8943
Total AfriNIC prefixes after maximum aggregation: 2084
AfriNIC Deaggregation factor: 4.29
Prefixes being announced from the AfriNIC address blocks: 6987
Unique aggregates announced from the AfriNIC address blocks: 2144
AfriNIC Region origin ASes present in the Internet Routing Table: 506
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: 117
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: 30896384
Equivalent to 1 /8s, 215 /16s and 113 /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 1906 11097 664 Korea Telecom (KIX)
7545 1640 303 87 TPG Internet Pty Ltd
17974 1633 503 35 PT Telekomunikasi Indonesia
4755 1512 385 157 TATA Communications formerly
9829 1167 989 28 National Internet Backbone
9583 1118 81 483 Sify Limited
7552 1117 1062 11 Vietel Corporation
24560 1015 385 167 Bharti Airtel Ltd., Telemedia
4808 980 1947 277 CNCGROUP IP network China169
18101 947 130 155 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 3446 3807 202 BellSouth.net Inc.
7029 3259 1043 213 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
1785 1865 680 122 PaeTec Communications, Inc.
20115 1623 1552 628 Charter Communications
4323 1607 1078 384 tw telecom holdings, inc.
22773 1519 2910 109 Cox Communications Inc.
30036 1450 254 731 Mediacom Communications Corp
19262 1385 4683 400 Verizon Online LLC
7018 1312 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 1627 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 639 188 171 BILISIM TELEKOM
20940 587 192 463 Akamai Technologies European
8551 576 360 81 Bezeq International
12479 555 641 56 France Telecom Espana SA
9116 541 326 32 Goldenlines main autonomous s
31148 524 36 8 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 1729 322 168 Types of queries are: POCs, o
28573 1630 1069 71 Types of queries are: POCs, o
8151 1321 2973 337 Uninet S.A. de C.V.
7303 1256 756 179 Telecom Argentina S.A.
11172 689 111 73 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 553 238 92 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 1204 958 13 TEDATA
24863 830 155 41 LINKdotNET AS number
6713 488 649 18 Itissalat Al-MAGHRIB
3741 280 939 229 The Internet Solution
15706 242 32 6 Sudatel Internet Exchange Aut
33776 232 12 18 Starcomms Nigeria Limited
29571 215 17 12 Ci Telecom Autonomous system
12258 197 28 62 Vodacom Internet Company
24835 190 80 8 RAYA Telecom - Egypt
16637 163 664 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 3446 3807 202 BellSouth.net Inc.
7029 3259 1043 213 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
4766 1906 11097 664 Korea Telecom (KIX)
1785 1865 680 122 PaeTec Communications, Inc.
10620 1729 322 168 Types of queries are: POCs, o
7545 1640 303 87 TPG Internet Pty Ltd
17974 1633 503 35 PT Telekomunikasi Indonesia
28573 1630 1069 71 Types of queries are: POCs, o
8402 1627 480 15 Corbina telecom
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 3259 3046 Windstream Communications Inc
18566 2094 1917 Covad Communications Co.
1785 1865 1743 PaeTec Communications, Inc.
8402 1627 1612 Corbina telecom
17974 1633 1598 PT Telekomunikasi Indonesia
10620 1729 1561 Types of queries are: POCs, o
28573 1630 1559 Types of queries are: POCs, o
7545 1640 1553 TPG Internet Pty Ltd
22773 1519 1410 Cox Communications Inc.
4755 1512 1355 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
37.49.160.0/20 12688 CJSC "Baikal-TransTeleCom"
37.49.176.0/21 12688 CJSC "Baikal-TransTeleCom"
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 /12:233
/13:459 /14:816 /15:1460 /16:12095 /17:6152 /18:10197
/19:20319 /20:28033 /21:28782 /22:38843 /23:36474 /24:203173
/25:11 /26:21 /27:20 /28:153 /29:137 /30:65
/31:0 /32:142
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2864 3259 Windstream Communications Inc
6389 2115 3446 BellSouth.net Inc.
18566 2043 2094 Covad Communications Co.
10620 1624 1729 Types of queries are: POCs, o
8402 1606 1627 Corbina telecom
30036 1409 1450 Mediacom Communications Corp
11492 1117 1154 CABLE ONE, INC.
1785 1063 1865 PaeTec Communications, Inc.
15557 1046 1095 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)
----------------------------------------------
1:505 2:446 4:14 5:1 6:3 8:379
12:1957 13:1 14:585 15:11 16:3 17:6
20:9 23:120 24:1719 27:1184 31:873 32:60
33:2 34:2 36:8 37:104 38:789 40:114
41:3131 42:87 44:3 46:1259 47:3 49:320
50:515 52:13 54:1 55:6 56:3 57:37
58:905 59:482 60:343 61:1069 62:922 63:1972
64:4103 65:2283 66:4396 67:2034 68:1151 69:3148
70:913 71:431 72:1800 74:2648 75:445 76:321
77:966 78:902 79:505 80:1208 81:874 82:563
83:530 84:586 85:1150 86:755 87:909 88:342
89:1531 90:257 91:4467 92:536 93:1543 94:1315
95:1108 96:409 97:306 98:787 99:38 100:20
101:130 103:679 106:3 107:135 108:129 109:1463
110:689 111:833 112:410 113:525 114:605 115:738
116:856 117:704 118:896 119:1233 120:354 121:652
122:1581 123:1057 124:1304 125:1308 128:484 129:182
130:204 131:587 132:154 133:21 134:224 135:59
136:211 137:150 138:290 139:144 140:462 141:259
142:360 143:406 144:512 145:68 146:483 147:226
148:671 149:270 150:159 151:192 152:444 153:170
154:6 155:414 156:207 157:336 158:154 159:436
160:333 161:220 162:336 163:178 164:528 165:393
166:560 167:458 168:761 169:146 170:832 171:111
172:4 173:1782 174:569 175:415 176:385 177:468
178:1232 180:1222 181:43 182:690 183:273 184:440
185:1 186:1517 187:833 188:963 189:1181 190:5376
192:5937 193:5482 194:4215 195:3388 196:1269 197:171
198:3542 199:4283 200:5609 201:1718 202:8205 203:8471
204:4272 205:2420 206:2662 207:2739 208:4021 209:3532
210:2677 211:1446 212:1995 213:1831 214:846 215:94
216:4954 217:1475 218:544 219:336 220:1217 221:542
222:297 223:258
End of report
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