Routing Table Report 08:00 +10GMT Fri 30 Dec, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 382458
Prefixes after maximum aggregation: 166390
Deaggregation factor: 2.30
Unique aggregates announced to Internet: 190025
Total ASes present in the Internet Routing Table: 37749
Prefixes per ASN: 10.13
Origin-only ASes present in the Internet Routing Table: 32533
Origin ASes announcing only one prefix: 15529
Transit ASes present in the Internet Routing Table: 5216
Transit-only ASes present in the Internet Routing Table: 125
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: 2734
Unregistered ASNs in the Routing Table: 1094
Number of 32-bit ASNs allocated by the RIRs: 2139
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4325
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 120
Number of addresses announced to Internet: 2522583296
Equivalent to 150 /8s, 91 /16s and 145 /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: 91.8
Total number of prefixes smaller than registry allocations: 160372
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 91298
Total APNIC prefixes after maximum aggregation: 30055
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 88654
Unique aggregates announced from the APNIC address blocks: 38771
APNIC Region origin ASes present in the Internet Routing Table: 4570
APNIC Prefixes per ASN: 19.40
APNIC Region origin ASes announcing only one prefix: 1267
APNIC Region transit ASes present in the Internet Routing Table: 708
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: 632445696
Equivalent to 37 /8s, 178 /16s and 91 /24s
Percentage of available APNIC address space announced: 80.2
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: 145553
Total ARIN prefixes after maximum aggregation: 74509
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 117945
Unique aggregates announced from the ARIN address blocks: 48878
ARIN Region origin ASes present in the Internet Routing Table: 14752
ARIN Prefixes per ASN: 8.00
ARIN Region origin ASes announcing only one prefix: 5661
ARIN Region transit ASes present in the Internet Routing Table: 1490
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: 804669952
Equivalent to 47 /8s, 246 /16s and 74 /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: 95620
Total RIPE prefixes after maximum aggregation: 51755
RIPE Deaggregation factor: 1.85
Prefixes being announced from the RIPE address blocks: 87615
Unique aggregates announced from the RIPE address blocks: 55378
RIPE Region origin ASes present in the Internet Routing Table: 16212
RIPE Prefixes per ASN: 5.40
RIPE Region origin ASes announcing only one prefix: 7990
RIPE Region transit ASes present in the Internet Routing Table: 2564
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: 495341568
Equivalent to 29 /8s, 134 /16s and 80 /24s
Percentage of available RIPE address space announced: 79.8
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: 36394
Total LACNIC prefixes after maximum aggregation: 7929
LACNIC Deaggregation factor: 4.59
Prefixes being announced from the LACNIC address blocks: 36105
Unique aggregates announced from the LACNIC address blocks: 19037
LACNIC Region origin ASes present in the Internet Routing Table: 1545
LACNIC Prefixes per ASN: 23.37
LACNIC Region origin ASes announcing only one prefix: 451
LACNIC Region transit ASes present in the Internet Routing Table: 272
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: 95123968
Equivalent to 5 /8s, 171 /16s and 122 /24s
Percentage of available LACNIC address space announced: 63.0
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: 8564
Total AfriNIC prefixes after maximum aggregation: 2069
AfriNIC Deaggregation factor: 4.14
Prefixes being announced from the AfriNIC address blocks: 6635
Unique aggregates announced from the AfriNIC address blocks: 2094
AfriNIC Region origin ASes present in the Internet Routing Table: 503
AfriNIC Prefixes per ASN: 13.19
AfriNIC Region origin ASes announcing only one prefix: 160
AfriNIC Region transit ASes present in the Internet Routing Table: 113
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: 30861312
Equivalent to 1 /8s, 214 /16s and 232 /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 1933 11099 660 Korea Telecom (KIX)
17974 1629 503 37 PT Telekomunikasi Indonesia
7545 1626 303 86 TPG Internet Pty Ltd
4755 1499 385 157 TATA Communications formerly
9583 1168 88 521 Sify Limited
9829 1167 989 28 National Internet Backbone
7552 1103 1062 11 Vietel Corporation
24560 1004 383 163 Bharti Airtel Ltd., Telemedia
18101 976 131 157 Reliance Infocom Ltd Internet
4808 956 1945 273 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 3473 3814 221 BellSouth.net Inc.
7029 2949 1042 213 Windstream Communications Inc
18566 2095 383 177 Covad Communications Co.
1785 1863 680 121 PaeTec Communications, Inc.
4323 1622 1081 386 tw telecom holdings, inc.
20115 1613 1550 623 Charter Communications
22773 1515 2909 107 Cox Communications Inc.
30036 1470 261 689 Mediacom Communications Corp
19262 1388 4683 401 Verizon Online LLC
7018 1314 7047 867 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 1461 480 15 Corbina telecom
15557 1092 2161 64 NEUF CEGETEL (formerly LDCOM
2118 672 99 14 EUnet/RELCOM Autonomous Syste
6830 642 1928 413 UPC Broadband
34984 633 132 197 BILISIM TELEKOM
8551 554 364 61 Bezeq International
12479 548 636 53 France Telecom Espana SA
20940 547 176 440 Akamai Technologies European
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 1561 1064 75 Types of queries are: POCs, o
8151 1315 2962 345 Uninet S.A. de C.V.
7303 1254 755 176 Telecom Argentina S.A.
27947 611 73 95 Telconet S.A
22047 582 322 17 Types of queries are: POCs, o
3816 551 237 91 Types of queries are: POCs, o
7738 551 1050 31 Telecomunicacoes da Bahia S.A
11172 531 102 98 Alestra, S. de R.L. de C.V.
6503 527 434 67 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 1039 958 13 TEDATA
24863 789 146 33 LINKdotNET AS number
3741 280 939 229 The Internet Solution
6713 249 647 17 Itissalat Al-MAGHRIB
15706 242 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
29571 216 17 13 Ci Telecom Autonomous system
12258 196 28 61 Vodacom Internet Company
24835 189 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 3473 3814 221 BellSouth.net Inc.
7029 2949 1042 213 Windstream Communications Inc
18566 2095 383 177 Covad Communications Co.
4766 1933 11099 660 Korea Telecom (KIX)
1785 1863 680 121 PaeTec Communications, Inc.
10620 1721 319 159 Types of queries are: POCs, o
17974 1629 503 37 PT Telekomunikasi Indonesia
7545 1626 303 86 TPG Internet Pty Ltd
4323 1622 1081 386 tw telecom holdings, inc.
20115 1613 1550 623 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 2949 2736 Windstream Communications Inc
18566 2095 1918 Covad Communications Co.
1785 1863 1742 PaeTec Communications, Inc.
17974 1629 1592 PT Telekomunikasi Indonesia
10620 1721 1562 Types of queries are: POCs, o
7545 1626 1540 TPG Internet Pty Ltd
28573 1561 1486 Types of queries are: POCs, o
8402 1461 1446 Corbina telecom
22773 1515 1408 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
37.26.200.0/21 28748 AlphaCron Datensysteme AS
37.26.208.0/20 57660 >>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 /12:238
/13:465 /14:812 /15:1446 /16:12044 /17:6106 /18:10172
/19:20268 /20:27984 /21:28253 /22:38345 /23:35663 /24:199980
/25:11 /26:21 /27:20 /28:154 /29:134 /30:67
/31:0 /32:135
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2561 2949 Windstream Communications Inc
6389 2117 3473 BellSouth.net Inc.
18566 2044 2095 Covad Communications Co.
10620 1616 1721 Types of queries are: POCs, o
8402 1440 1461 Corbina telecom
30036 1430 1470 Mediacom Communications Corp
11492 1115 1152 CABLE ONE, INC.
1785 1063 1863 PaeTec Communications, Inc.
7011 1051 1168 Frontier Communications of Am
15557 1042 1092 NEUF CEGETEL (formerly LDCOM
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:468 2:401 4:15 5:1 6:3 8:366
12:1946 13:1 14:570 15:11 16:3 17:7
20:9 23:81 24:1708 27:1115 31:822 32:62
33:2 34:2 36:4 37:9 38:770 40:114
41:3026 42:82 44:3 46:1148 47:3 49:296
50:471 52:13 55:6 56:2 57:38 58:881
59:483 60:340 61:1071 62:937 63:1964 64:4106
65:2303 66:4362 67:1987 68:1165 69:3131 70:922
71:410 72:1785 74:2643 75:431 76:320 77:933
78:868 79:490 80:1190 81:839 82:535 83:532
84:576 85:1167 86:753 87:903 88:361 89:1585
90:261 91:4377 92:532 93:1508 94:1346 95:1033
96:391 97:288 98:771 99:38 100:2 101:125
103:584 106:10 107:120 108:101 109:1425 110:673
111:826 112:421 113:507 114:593 115:691 116:853
117:699 118:891 119:1214 120:358 121:643 122:1581
123:1033 124:1298 125:1298 128:472 129:181 130:182
131:584 132:155 133:21 134:217 135:54 136:204
137:148 138:285 139:125 140:465 141:256 142:364
143:386 144:499 145:67 146:471 147:222 148:613
149:270 150:158 151:192 152:442 153:169 154:6
155:397 156:207 157:334 158:154 159:433 160:349
161:204 162:331 163:178 164:518 165:392 166:543
167:455 168:807 169:145 170:830 171:95 172:4
173:1811 174:588 175:413 176:318 177:435 178:1151
180:1208 181:39 182:666 183:264 184:425 185:1
186:1469 187:800 188:1008 189:1177 190:5309 192:5939
193:5444 194:3792 195:3178 196:1262 197:175 198:3567
199:4195 200:5467 201:1682 202:8304 203:8429 204:4266
205:2401 206:2598 207:2747 208:3985 209:3538 210:2680
211:1446 212:1950 213:1803 214:804 215:93 216:4886
217:1473 218:558 219:331 220:1224 221:507 222:297
223:251
End of report
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