Routing Table Report 08:00 +10GMT Thu 26 Jan, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 387169
Prefixes after maximum aggregation: 167008
Deaggregation factor: 2.32
Unique aggregates announced to Internet: 191312
Total ASes present in the Internet Routing Table: 37877
Prefixes per ASN: 10.22
Origin-only ASes present in the Internet Routing Table: 32639
Origin ASes announcing only one prefix: 15515
Transit ASes present in the Internet Routing Table: 5238
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: 1070
Unregistered ASNs in the Routing Table: 184
Number of 32-bit ASNs allocated by the RIRs: 2213
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4551
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 119
Number of addresses announced to Internet: 2529216256
Equivalent to 150 /8s, 192 /16s and 199 /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: 162450
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92096
Total APNIC prefixes after maximum aggregation: 30114
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 89390
Unique aggregates announced from the APNIC address blocks: 39014
APNIC Region origin ASes present in the Internet Routing Table: 4582
APNIC Prefixes per ASN: 19.51
APNIC Region origin ASes announcing only one prefix: 1254
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: 634460928
Equivalent to 37 /8s, 209 /16s and 27 /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: 146531
Total ARIN prefixes after maximum aggregation: 74746
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118801
Unique aggregates announced from the ARIN address blocks: 49129
ARIN Region origin ASes present in the Internet Routing Table: 14809
ARIN Prefixes per ASN: 8.02
ARIN Region origin ASes announcing only one prefix: 5676
ARIN Region transit ASes present in the Internet Routing Table: 1498
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: 805116928
Equivalent to 47 /8s, 253 /16s and 28 /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: 97636
Total RIPE prefixes after maximum aggregation: 52044
RIPE Deaggregation factor: 1.88
Prefixes being announced from the RIPE address blocks: 89603
Unique aggregates announced from the RIPE address blocks: 55776
RIPE Region origin ASes present in the Internet Routing Table: 16266
RIPE Prefixes per ASN: 5.51
RIPE Region origin ASes announcing only one prefix: 7989
RIPE Region transit ASes present in the Internet Routing Table: 2572
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: 498119680
Equivalent to 29 /8s, 176 /16s and 180 /24s
Percentage of available RIPE address space announced: 80.2
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: 36704
Total LACNIC prefixes after maximum aggregation: 7950
LACNIC Deaggregation factor: 4.62
Prefixes being announced from the LACNIC address blocks: 36470
Unique aggregates announced from the LACNIC address blocks: 19363
LACNIC Region origin ASes present in the Internet Routing Table: 1554
LACNIC Prefixes per ASN: 23.47
LACNIC Region origin ASes announcing only one prefix: 441
LACNIC Region transit ASes present in the Internet Routing Table: 277
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: 95732224
Equivalent to 5 /8s, 180 /16s and 194 /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: 8939
Total AfriNIC prefixes after maximum aggregation: 2082
AfriNIC Deaggregation factor: 4.29
Prefixes being announced from the AfriNIC address blocks: 6983
Unique aggregates announced from the AfriNIC address blocks: 2144
AfriNIC Region origin ASes present in the Internet Routing Table: 503
AfriNIC Prefixes per ASN: 13.88
AfriNIC Region origin ASes announcing only one prefix: 155
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: 30871808
Equivalent to 1 /8s, 215 /16s and 17 /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 1634 503 36 PT Telekomunikasi Indonesia
4755 1510 385 156 TATA Communications formerly
9829 1163 989 28 National Internet Backbone
9583 1119 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 948 131 155 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 1042 212 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
1785 1865 679 121 PaeTec Communications, Inc.
20115 1627 1554 624 Charter Communications
4323 1606 1078 384 tw telecom holdings, inc.
22773 1519 2910 109 Cox Communications Inc.
30036 1442 252 735 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 1635 480 15 Corbina telecom
2118 1241 99 14 EUnet/RELCOM Autonomous Syste
15557 1095 2161 64 NEUF CEGETEL (formerly LDCOM
6830 644 1927 413 UPC Broadband
34984 638 188 171 BILISIM TELEKOM
20940 587 192 463 Akamai Technologies European
8551 577 360 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 1616 1068 77 Types of queries are: POCs, o
8151 1316 2972 336 Uninet S.A. de C.V.
7303 1256 756 179 Telecom Argentina S.A.
27947 622 73 97 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
11172 541 101 107 Alestra, S. de R.L. de C.V.
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 1200 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 165 664 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 1042 212 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
4766 1906 11097 664 Korea Telecom (KIX)
1785 1865 679 121 PaeTec Communications, Inc.
10620 1729 322 168 Types of queries are: POCs, o
7545 1640 303 87 TPG Internet Pty Ltd
8402 1635 480 15 Corbina telecom
17974 1634 503 36 PT Telekomunikasi Indonesia
20115 1627 1554 624 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 3259 3047 Windstream Communications Inc
18566 2094 1917 Covad Communications Co.
1785 1865 1744 PaeTec Communications, Inc.
8402 1635 1620 Corbina telecom
17974 1634 1598 PT Telekomunikasi Indonesia
10620 1729 1561 Types of queries are: POCs, o
7545 1640 1553 TPG Internet Pty Ltd
28573 1616 1539 Types of queries are: POCs, o
22773 1519 1410 Cox Communications Inc.
4755 1510 1354 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
37.48.64.0/18 16265 LeaseWeb AS Macro
37.52.0.0/14 6849 JSC UKRTELECOM,
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 /16:12091 /17:6147 /18:10194
/19:20294 /20:27969 /21:28757 /22:38817 /23:36448 /24:202802
/25:11 /26:21 /27:19 /28:152 /29:135 /30:65
/31:0 /32:140
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2865 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 1614 1635 Corbina telecom
30036 1401 1442 Mediacom Communications Corp
11492 1117 1154 CABLE ONE, INC.
1785 1064 1865 PaeTec Communications, Inc.
15557 1046 1095 NEUF CEGETEL (formerly LDCOM
7011 1033 1150 Frontier Communications of Am
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:502 2:454 4:14 5:1 6:3 8:378
12:1957 13:1 14:585 15:11 16:3 17:6
20:9 23:119 24:1719 27:1181 31:878 32:60
33:2 34:2 36:8 37:104 38:789 40:114
41:3142 42:86 44:3 46:1257 47:3 49:320
50:514 52:13 54:1 55:5 56:3 57:37
58:908 59:483 60:342 61:1076 62:918 63:1972
64:4099 65:2284 66:4397 67:2025 68:1153 69:3148
70:913 71:431 72:1798 74:2655 75:445 76:320
77:962 78:896 79:509 80:1205 81:872 82:562
83:528 84:587 85:1153 86:745 87:908 88:342
89:1529 90:257 91:4459 92:533 93:1540 94:1300
95:1103 96:409 97:301 98:779 99:38 100:20
101:130 103:670 106:3 107:135 108:129 109:1461
110:690 111:834 112:406 113:524 114:597 115:735
116:857 117:709 118:901 119:1231 120:354 121:646
122:1579 123:1057 124:1301 125:1308 128:493 129:182
130:204 131:587 132:154 133:21 134:224 135:59
136:211 137:150 138:290 139:144 140:459 141:259
142:360 143:403 144:513 145:68 146:480 147:226
148:625 149:270 150:158 151:193 152:444 153:170
154:6 155:407 156:207 157:336 158:154 159:435
160:332 161:220 162:335 163:178 164:527 165:393
166:560 167:457 168:768 169:146 170:835 171:110
172:4 173:1779 174:565 175:415 176:374 177:467
178:1225 180:1220 181:43 182:686 183:269 184:439
185:1 186:1522 187:832 188:968 189:1164 190:5355
192:5932 193:5479 194:4214 195:3386 196:1265 197:171
198:3544 199:4289 200:5493 201:1691 202:8219 203:8501
204:4268 205:2407 206:2656 207:2736 208:4010 209:3530
210:2673 211:1446 212:1990 213:1829 214:840 215:93
216:4951 217:1475 218:543 219:336 220:1215 221:542
222:297 223:255
End of report
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