Routing Table Report 08:00 +10GMT Mon 23 Jan, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 386581
Prefixes after maximum aggregation: 166965
Deaggregation factor: 2.32
Unique aggregates announced to Internet: 191184
Total ASes present in the Internet Routing Table: 37870
Prefixes per ASN: 10.21
Origin-only ASes present in the Internet Routing Table: 32638
Origin ASes announcing only one prefix: 15529
Transit ASes present in the Internet Routing Table: 5232
Transit-only ASes present in the Internet Routing Table: 126
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: 2900
Unregistered ASNs in the Routing Table: 1158
Number of 32-bit ASNs allocated by the RIRs: 2208
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4517
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 117
Number of addresses announced to Internet: 2528596992
Equivalent to 150 /8s, 183 /16s and 84 /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: 162057
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92070
Total APNIC prefixes after maximum aggregation: 30120
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 89315
Unique aggregates announced from the APNIC address blocks: 39054
APNIC Region origin ASes present in the Internet Routing Table: 4585
APNIC Prefixes per ASN: 19.48
APNIC Region origin ASes announcing only one prefix: 1256
APNIC Region transit ASes present in the Internet Routing Table: 702
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 634771200
Equivalent to 37 /8s, 213 /16s and 215 /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: 146432
Total ARIN prefixes after maximum aggregation: 74715
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118686
Unique aggregates announced from the ARIN address blocks: 49119
ARIN Region origin ASes present in the Internet Routing Table: 14792
ARIN Prefixes per ASN: 8.02
ARIN Region origin ASes announcing only one prefix: 5669
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: 805085696
Equivalent to 47 /8s, 252 /16s and 162 /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: 97562
Total RIPE prefixes after maximum aggregation: 52041
RIPE Deaggregation factor: 1.87
Prefixes being announced from the RIPE address blocks: 89428
Unique aggregates announced from the RIPE address blocks: 55734
RIPE Region origin ASes present in the Internet Routing Table: 16265
RIPE Prefixes per ASN: 5.50
RIPE Region origin ASes announcing only one prefix: 7999
RIPE Region transit ASes present in the Internet Routing Table: 2563
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: 497774592
Equivalent to 29 /8s, 171 /16s and 112 /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: 36670
Total LACNIC prefixes after maximum aggregation: 7944
LACNIC Deaggregation factor: 4.62
Prefixes being announced from the LACNIC address blocks: 36448
Unique aggregates announced from the LACNIC address blocks: 19312
LACNIC Region origin ASes present in the Internet Routing Table: 1554
LACNIC Prefixes per ASN: 23.45
LACNIC Region origin ASes announcing only one prefix: 444
LACNIC Region transit ASes present in the Internet Routing Table: 276
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: 95491072
Equivalent to 5 /8s, 177 /16s and 20 /24s
Percentage of available LACNIC address space announced: 63.2
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: 8669
Total AfriNIC prefixes after maximum aggregation: 2074
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6724
Unique aggregates announced from the AfriNIC address blocks: 2080
AfriNIC Region origin ASes present in the Internet Routing Table: 507
AfriNIC Prefixes per ASN: 13.26
AfriNIC Region origin ASes announcing only one prefix: 161
AfriNIC Region transit ASes present in the Internet Routing Table: 119
Average AfriNIC Region AS path length visible: 3.4
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: 30804480
Equivalent to 1 /8s, 214 /16s and 10 /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 1911 11097 664 Korea Telecom (KIX)
7545 1635 303 86 TPG Internet Pty Ltd
17974 1635 503 36 PT Telekomunikasi Indonesia
4755 1510 385 156 TATA Communications formerly
9829 1162 989 28 National Internet Backbone
9583 1119 81 490 Sify Limited
7552 1117 1062 11 Vietel Corporation
24560 1011 384 167 Bharti Airtel Ltd., Telemedia
4808 980 1947 277 CNCGROUP IP network China169
18101 947 131 155 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 204 BellSouth.net Inc.
7029 3255 1042 211 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
1785 1866 679 120 PaeTec Communications, Inc.
20115 1619 1553 615 Charter Communications
4323 1608 1079 384 tw telecom holdings, inc.
22773 1486 2909 108 Cox Communications Inc.
30036 1473 262 719 Mediacom Communications Corp
19262 1385 4683 400 Verizon Online LLC
7018 1308 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 1640 480 15 Corbina telecom
2118 1241 99 14 EUnet/RELCOM Autonomous Syste
15557 1095 2161 64 NEUF CEGETEL (formerly LDCOM
6830 644 1928 413 UPC Broadband
34984 637 188 171 BILISIM TELEKOM
20940 579 189 462 Akamai Technologies European
8551 575 360 81 Bezeq International
12479 553 639 55 France Telecom Espana SA
9116 541 326 32 Goldenlines main autonomous s
31148 530 35 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 1723 321 167 Types of queries are: POCs, o
28573 1610 1068 77 Types of queries are: POCs, o
8151 1316 2980 333 Uninet S.A. de C.V.
7303 1256 756 179 Telecom Argentina S.A.
27947 621 73 96 Telconet S.A
22047 581 322 17 Types of queries are: POCs, o
3816 553 238 92 Types of queries are: POCs, o
7738 551 1050 31 Telecomunicacoes da Bahia S.A
11172 533 101 107 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 1054 958 13 TEDATA
24863 794 146 33 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 280 939 229 The Internet Solution
15706 243 32 6 Sudatel Internet Exchange Aut
33776 228 13 14 Starcomms Nigeria Limited
29571 215 17 12 Ci Telecom Autonomous system
12258 197 28 62 Vodacom Internet Company
24835 189 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 204 BellSouth.net Inc.
7029 3255 1042 211 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
4766 1911 11097 664 Korea Telecom (KIX)
1785 1866 679 120 PaeTec Communications, Inc.
10620 1723 321 167 Types of queries are: POCs, o
8402 1640 480 15 Corbina telecom
7545 1635 303 86 TPG Internet Pty Ltd
17974 1635 503 36 PT Telekomunikasi Indonesia
20115 1619 1553 615 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 3255 3044 Windstream Communications Inc
18566 2094 1917 Covad Communications Co.
1785 1866 1746 PaeTec Communications, Inc.
8402 1640 1625 Corbina telecom
17974 1635 1599 PT Telekomunikasi Indonesia
10620 1723 1556 Types of queries are: POCs, o
7545 1635 1549 TPG Internet Pty Ltd
28573 1610 1533 Types of queries are: POCs, o
22773 1486 1378 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
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>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 /12:233
/13:458 /14:815 /15:1459 /16:12080 /17:6142 /18:10170
/19:20304 /20:27980 /21:28748 /22:38720 /23:36399 /24:202434
/25:11 /26:19 /27:18 /28:145 /29:124 /30:59
/31:0 /32:124
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2861 3255 Windstream Communications Inc
6389 2116 3446 BellSouth.net Inc.
18566 2043 2094 Covad Communications Co.
8402 1619 1640 Corbina telecom
10620 1618 1723 Types of queries are: POCs, o
30036 1431 1473 Mediacom Communications Corp
11492 1116 1153 CABLE ONE, INC.
1785 1067 1866 PaeTec Communications, Inc.
15557 1046 1095 NEUF CEGETEL (formerly LDCOM
7011 1031 1148 Frontier Communications of Am
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:500 2:446 4:15 5:1 6:3 8:378
12:1958 13:1 14:578 15:11 16:3 17:6
20:8 23:117 24:1712 27:1172 31:873 32:60
33:2 34:2 36:8 37:101 38:789 40:114
41:2949 42:87 44:3 46:1249 47:3 49:320
50:517 52:13 54:1 55:6 56:3 57:37
58:905 59:482 60:342 61:1079 62:918 63:1971
64:4091 65:2288 66:4395 67:2007 68:1154 69:3143
70:917 71:428 72:1796 74:2653 75:445 76:320
77:966 78:905 79:509 80:1171 81:864 82:562
83:532 84:585 85:1154 86:749 87:907 88:339
89:1543 90:257 91:4438 92:532 93:1543 94:1320
95:1115 96:420 97:298 98:787 99:38 100:18
101:132 103:650 106:9 107:135 108:124 109:1460
110:685 111:823 112:416 113:524 114:603 115:737
116:853 117:708 118:898 119:1230 120:354 121:651
122:1586 123:1056 124:1303 125:1307 128:487 129:174
130:204 131:588 132:154 133:21 134:219 135:58
136:211 137:150 138:288 139:144 140:463 141:259
142:359 143:393 144:501 145:68 146:480 147:225
148:620 149:280 150:158 151:193 152:444 153:170
154:6 155:412 156:207 157:336 158:154 159:436
160:325 161:216 162:337 163:178 164:526 165:395
166:559 167:456 168:846 169:146 170:836 171:106
172:4 173:1768 174:584 175:415 176:366 177:459
178:1205 180:1227 181:43 182:682 183:274 184:396
185:1 186:1507 187:833 188:969 189:1164 190:5353
192:5944 193:5470 194:4206 195:3388 196:1256 197:172
198:3566 199:4282 200:5530 201:1683 202:8202 203:8500
204:4265 205:2411 206:2660 207:2735 208:4005 209:3527
210:2673 211:1440 212:1944 213:1826 214:837 215:94
216:4939 217:1475 218:543 219:336 220:1217 221:542
222:297 223:255
End of report
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