Routing Table Report 08:00 +10GMT Tue 10 Jan, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 383766
Prefixes after maximum aggregation: 166640
Deaggregation factor: 2.30
Unique aggregates announced to Internet: 190835
Total ASes present in the Internet Routing Table: 37801
Prefixes per ASN: 10.15
Origin-only ASes present in the Internet Routing Table: 32562
Origin ASes announcing only one prefix: 15527
Transit ASes present in the Internet Routing Table: 5239
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: 24
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 2827
Unregistered ASNs in the Routing Table: 1107
Number of 32-bit ASNs allocated by the RIRs: 2166
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4376
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 118
Number of addresses announced to Internet: 2524785664
Equivalent to 150 /8s, 125 /16s and 44 /24s
Percentage of available address space announced: 68.1
Percentage of allocated address space announced: 68.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.9
Total number of prefixes smaller than registry allocations: 160910
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 91674
Total APNIC prefixes after maximum aggregation: 30131
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 89006
Unique aggregates announced from the APNIC address blocks: 38923
APNIC Region origin ASes present in the Internet Routing Table: 4581
APNIC Prefixes per ASN: 19.43
APNIC Region origin ASes announcing only one prefix: 1261
APNIC Region transit ASes present in the Internet Routing Table: 704
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: 633275136
Equivalent to 37 /8s, 191 /16s and 3 /24s
Percentage of available APNIC address space announced: 80.3
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: 146003
Total ARIN prefixes after maximum aggregation: 74518
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118312
Unique aggregates announced from the ARIN address blocks: 49034
ARIN Region origin ASes present in the Internet Routing Table: 14774
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5666
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: 804909568
Equivalent to 47 /8s, 249 /16s and 242 /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: 96283
Total RIPE prefixes after maximum aggregation: 51921
RIPE Deaggregation factor: 1.85
Prefixes being announced from the RIPE address blocks: 88215
Unique aggregates announced from the RIPE address blocks: 55713
RIPE Region origin ASes present in the Internet Routing Table: 16224
RIPE Prefixes per ASN: 5.44
RIPE Region origin ASes announcing only one prefix: 7990
RIPE Region transit ASes present in the Internet Routing Table: 2567
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: 496535040
Equivalent to 29 /8s, 152 /16s and 134 /24s
Percentage of available RIPE address space announced: 80.0
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: 36348
Total LACNIC prefixes after maximum aggregation: 7950
LACNIC Deaggregation factor: 4.57
Prefixes being announced from the LACNIC address blocks: 36090
Unique aggregates announced from the LACNIC address blocks: 19178
LACNIC Region origin ASes present in the Internet Routing Table: 1549
LACNIC Prefixes per ASN: 23.30
LACNIC Region origin ASes announcing only one prefix: 449
LACNIC Region transit ASes present in the Internet Routing Table: 281
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 95220480
Equivalent to 5 /8s, 172 /16s and 243 /24s
Percentage of available LACNIC address space announced: 63.1
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: 8376
Total AfriNIC prefixes after maximum aggregation: 2047
AfriNIC Deaggregation factor: 4.09
Prefixes being announced from the AfriNIC address blocks: 6427
Unique aggregates announced from the AfriNIC address blocks: 2030
AfriNIC Region origin ASes present in the Internet Routing Table: 505
AfriNIC Prefixes per ASN: 12.73
AfriNIC Region origin ASes announcing only one prefix: 161
AfriNIC Region transit ASes present in the Internet Routing Table: 117
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: 30765312
Equivalent to 1 /8s, 213 /16s and 113 /24s
Percentage of available AfriNIC address space announced: 45.8
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 1910 11097 658 Korea Telecom (KIX)
17974 1630 503 37 PT Telekomunikasi Indonesia
7545 1627 303 86 TPG Internet Pty Ltd
4755 1499 385 157 TATA Communications formerly
9829 1158 989 28 National Internet Backbone
9583 1113 81 497 Sify Limited
7552 1098 1062 11 Vietel Corporation
24560 1010 384 167 Bharti Airtel Ltd., Telemedia
18101 976 131 156 Reliance Infocom Ltd Internet
4808 971 1945 274 CNCGROUP IP network China169
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 3476 3814 218 BellSouth.net Inc.
7029 3256 1042 213 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
1785 1866 680 122 PaeTec Communications, Inc.
20115 1616 1552 619 Charter Communications
4323 1607 1080 385 tw telecom holdings, inc.
22773 1517 2909 107 Cox Communications Inc.
30036 1484 263 690 Mediacom Communications Corp
19262 1388 4683 401 Verizon Online LLC
7018 1311 7046 863 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 1571 480 15 Corbina telecom
15557 1096 2161 64 NEUF CEGETEL (formerly LDCOM
2118 672 99 14 EUnet/RELCOM Autonomous Syste
6830 645 1928 414 UPC Broadband
34984 635 132 197 BILISIM TELEKOM
20940 563 183 451 Akamai Technologies European
8551 554 360 81 Bezeq International
12479 547 636 53 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 1721 319 159 Types of queries are: POCs, o
28573 1564 1065 77 Types of queries are: POCs, o
8151 1321 2978 338 Uninet S.A. de C.V.
7303 1254 756 179 Telecom Argentina S.A.
27947 611 73 95 Telconet S.A
22047 582 322 17 Types of queries are: POCs, o
7738 551 1050 31 Telecomunicacoes da Bahia S.A
3816 550 237 91 Types of queries are: POCs, o
11172 535 102 101 Alestra, S. de R.L. de C.V.
6503 527 434 68 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 1025 958 13 TEDATA
24863 791 146 33 LINKdotNET AS number
3741 280 939 229 The Internet Solution
6713 250 649 18 Itissalat Al-MAGHRIB
15706 240 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
29571 217 17 13 Ci Telecom Autonomous system
12258 196 28 61 Vodacom Internet Company
24835 188 80 8 RAYA Telecom - Egypt
16637 157 664 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 3476 3814 218 BellSouth.net Inc.
7029 3256 1042 213 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
4766 1910 11097 658 Korea Telecom (KIX)
1785 1866 680 122 PaeTec Communications, Inc.
10620 1721 319 159 Types of queries are: POCs, o
17974 1630 503 37 PT Telekomunikasi Indonesia
7545 1627 303 86 TPG Internet Pty Ltd
20115 1616 1552 619 Charter Communications
4323 1607 1080 385 tw telecom holdings, inc.
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 3256 3043 Windstream Communications Inc
18566 2094 1917 Covad Communications Co.
1785 1866 1744 PaeTec Communications, Inc.
17974 1630 1593 PT Telekomunikasi Indonesia
10620 1721 1562 Types of queries are: POCs, o
8402 1571 1556 Corbina telecom
7545 1627 1541 TPG Internet Pty Ltd
28573 1564 1487 Types of queries are: POCs, o
22773 1517 1410 Cox Communications Inc.
4755 1499 1342 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 /11:81 /12:237
/13:466 /14:813 /15:1451 /16:12064 /17:6130 /18:10168
/19:20294 /20:27964 /21:28322 /22:38477 /23:35834 /24:200861
/25:11 /26:21 /27:20 /28:152 /29:135 /30:67
/31:0 /32:139
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2860 3256 Windstream Communications Inc
6389 2120 3476 BellSouth.net Inc.
18566 2043 2094 Covad Communications Co.
10620 1616 1721 Types of queries are: POCs, o
8402 1550 1571 Corbina telecom
30036 1443 1484 Mediacom Communications Corp
11492 1115 1152 CABLE ONE, INC.
1785 1065 1866 PaeTec Communications, Inc.
7011 1051 1168 Frontier Communications of Am
15557 1046 1096 NEUF CEGETEL (formerly LDCOM
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:490 2:431 4:15 5:1 6:3 8:367
12:1947 13:1 14:576 15:11 16:3 17:7
20:9 23:86 24:1710 27:1165 31:869 32:62
33:2 34:2 36:8 37:77 38:790 40:114
41:2840 42:85 44:3 45:1 46:1180 47:3
49:315 50:501 52:13 55:7 56:2 57:37
58:896 59:480 60:340 61:1066 62:941 63:1962
64:4092 65:2300 66:4358 67:1994 68:1166 69:3134
70:919 71:425 72:1787 74:2641 75:446 76:321
77:930 78:893 79:495 80:1188 81:861 82:544
83:532 84:584 85:1168 86:753 87:912 88:349
89:1583 90:261 91:4405 92:533 93:1532 94:1339
95:1052 96:397 97:296 98:788 99:38 100:18
101:125 103:614 106:9 107:128 108:105 109:1424
110:681 111:830 112:401 113:506 114:603 115:740
116:852 117:704 118:894 119:1214 120:387 121:647
122:1584 123:1049 124:1302 125:1303 128:503 129:184
130:184 131:584 132:154 133:21 134:217 135:57
136:211 137:148 138:285 139:143 140:464 141:259
142:362 143:389 144:500 145:67 146:470 147:223
148:615 149:275 150:159 151:193 152:442 153:169
154:6 155:408 156:207 157:336 158:155 159:438
160:343 161:204 162:334 163:178 164:522 165:395
166:558 167:455 168:826 169:146 170:829 171:99
172:4 173:1792 174:598 175:419 176:337 177:446
178:1172 180:1216 181:43 182:674 183:267 184:426
185:1 186:1499 187:815 188:1016 189:1157 190:5260
192:5941 193:5460 194:3792 195:3188 196:1260 197:173
198:3575 199:4232 200:5484 201:1635 202:8228 203:8510
204:4264 205:2408 206:2621 207:2735 208:4005 209:3509
210:2675 211:1459 212:1985 213:1816 214:827 215:93
216:4904 217:1471 218:558 219:331 220:1214 221:547
222:297 223:251
End of report
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