Routing Table Report 08:00 +10GMT Wed 28 Dec, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 381550
Prefixes after maximum aggregation: 166229
Deaggregation factor: 2.30
Unique aggregates announced to Internet: 189760
Total ASes present in the Internet Routing Table: 37728
Prefixes per ASN: 10.11
Origin-only ASes present in the Internet Routing Table: 32513
Origin ASes announcing only one prefix: 15524
Transit ASes present in the Internet Routing Table: 5215
Transit-only ASes present in the Internet Routing Table: 123
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: 2733
Unregistered ASNs in the Routing Table: 1094
Number of 32-bit ASNs allocated by the RIRs: 2135
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4238
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 108
Number of addresses announced to Internet: 2521097472
Equivalent to 150 /8s, 68 /16s and 229 /24s
Percentage of available address space announced: 68.0
Percentage of allocated address space announced: 68.0
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: 160042
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90891
Total APNIC prefixes after maximum aggregation: 30029
APNIC Deaggregation factor: 3.03
Prefixes being announced from the APNIC address blocks: 88247
Unique aggregates announced from the APNIC address blocks: 38681
APNIC Region origin ASes present in the Internet Routing Table: 4569
APNIC Prefixes per ASN: 19.31
APNIC Region origin ASes announcing only one prefix: 1270
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: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 631770112
Equivalent to 37 /8s, 168 /16s and 12 /24s
Percentage of available APNIC address space announced: 80.1
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: 145463
Total ARIN prefixes after maximum aggregation: 74463
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 117860
Unique aggregates announced from the ARIN address blocks: 48812
ARIN Region origin ASes present in the Internet Routing Table: 14748
ARIN Prefixes per ASN: 7.99
ARIN Region origin ASes announcing only one prefix: 5661
ARIN Region transit ASes present in the Internet Routing Table: 1491
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: 804644864
Equivalent to 47 /8s, 245 /16s and 232 /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: 95427
Total RIPE prefixes after maximum aggregation: 51684
RIPE Deaggregation factor: 1.85
Prefixes being announced from the RIPE address blocks: 87457
Unique aggregates announced from the RIPE address blocks: 55396
RIPE Region origin ASes present in the Internet Routing Table: 16206
RIPE Prefixes per ASN: 5.40
RIPE Region origin ASes announcing only one prefix: 7985
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: 494948096
Equivalent to 29 /8s, 128 /16s and 79 /24s
Percentage of available RIPE address space announced: 79.7
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: 36300
Total LACNIC prefixes after maximum aggregation: 7917
LACNIC Deaggregation factor: 4.59
Prefixes being announced from the LACNIC address blocks: 35966
Unique aggregates announced from the LACNIC address blocks: 18958
LACNIC Region origin ASes present in the Internet Routing Table: 1544
LACNIC Prefixes per ASN: 23.29
LACNIC Region origin ASes announcing only one prefix: 452
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: 95056640
Equivalent to 5 /8s, 170 /16s and 115 /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: 8528
Total AfriNIC prefixes after maximum aggregation: 2065
AfriNIC Deaggregation factor: 4.13
Prefixes being announced from the AfriNIC address blocks: 6609
Unique aggregates announced from the AfriNIC address blocks: 2089
AfriNIC Region origin ASes present in the Internet Routing Table: 497
AfriNIC Prefixes per ASN: 13.30
AfriNIC Region origin ASes announcing only one prefix: 156
AfriNIC Region transit ASes present in the Internet Routing Table: 113
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: 30777344
Equivalent to 1 /8s, 213 /16s and 160 /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 1932 11099 663 Korea Telecom (KIX)
17974 1628 503 38 PT Telekomunikasi Indonesia
7545 1626 303 86 TPG Internet Pty Ltd
4755 1500 385 157 TATA Communications formerly
9829 1168 989 28 National Internet Backbone
9583 1110 81 494 Sify Limited
7552 1105 1062 11 Vietel Corporation
24560 1004 383 163 Bharti Airtel Ltd., Telemedia
18101 975 131 157 Reliance Infocom Ltd Internet
4808 960 1948 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 3472 3814 220 BellSouth.net Inc.
7029 2949 1042 213 Windstream Communications Inc
18566 2094 383 177 Covad Communications Co.
1785 1862 680 121 PaeTec Communications, Inc.
4323 1622 1081 386 tw telecom holdings, inc.
20115 1611 1549 622 Charter Communications
22773 1514 2909 107 Cox Communications Inc.
30036 1467 260 686 Mediacom Communications Corp
19262 1388 4683 401 Verizon Online LLC
7018 1309 7045 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 1444 480 15 Corbina telecom
15557 1092 2161 64 NEUF CEGETEL (formerly LDCOM
2118 672 99 14 EUnet/RELCOM Autonomous Syste
6830 648 1928 413 UPC Broadband
34984 630 132 197 BILISIM TELEKOM
20940 554 178 443 Akamai Technologies European
8551 552 367 39 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 1556 1064 75 Types of queries are: POCs, o
8151 1315 2962 345 Uninet S.A. de C.V.
7303 1252 754 175 Telecom Argentina S.A.
27947 608 73 94 Telconet S.A
22047 582 322 17 Types of queries are: POCs, o
7738 551 1050 31 Telecomunicacoes da Bahia S.A
3816 549 237 90 Types of queries are: POCs, o
11172 531 102 98 Alestra, S. de R.L. de C.V.
6503 526 434 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 1038 958 13 TEDATA
24863 787 146 33 LINKdotNET AS number
3741 280 939 229 The Internet Solution
6713 248 647 17 Itissalat Al-MAGHRIB
15706 242 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 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 3472 3814 220 BellSouth.net Inc.
7029 2949 1042 213 Windstream Communications Inc
18566 2094 383 177 Covad Communications Co.
4766 1932 11099 663 Korea Telecom (KIX)
1785 1862 680 121 PaeTec Communications, Inc.
10620 1721 319 159 Types of queries are: POCs, o
17974 1628 503 38 PT Telekomunikasi Indonesia
7545 1626 303 86 TPG Internet Pty Ltd
4323 1622 1081 386 tw telecom holdings, inc.
20115 1611 1549 622 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 2094 1917 Covad Communications Co.
1785 1862 1741 PaeTec Communications, Inc.
17974 1628 1590 PT Telekomunikasi Indonesia
10620 1721 1562 Types of queries are: POCs, o
7545 1626 1540 TPG Internet Pty Ltd
28573 1556 1481 Types of queries are: POCs, o
8402 1444 1429 Corbina telecom
22773 1514 1407 Cox Communications Inc.
4755 1500 1343 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 /12:238
/13:465 /14:811 /15:1445 /16:12030 /17:6096 /18:10138
/19:20250 /20:27959 /21:28185 /22:38118 /23:35543 /24:199590
/25:11 /26:21 /27:20 /28:154 /29:133 /30:67
/31:0 /32:136
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2561 2949 Windstream Communications Inc
6389 2116 3472 BellSouth.net Inc.
18566 2043 2094 Covad Communications Co.
10620 1616 1721 Types of queries are: POCs, o
30036 1427 1467 Mediacom Communications Corp
8402 1423 1444 Corbina telecom
11492 1114 1151 CABLE ONE, INC.
1785 1063 1862 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)
----------------------------------------------
1:461 2:398 4:15 5:1 6:3 8:366
12:1945 13:1 14:567 15:11 16:3 17:7
20:9 23:79 24:1709 27:1113 31:818 32:62
33:2 34:2 36:4 37:9 38:770 40:114
41:3010 42:80 44:3 46:1144 47:3 49:279
50:471 52:13 55:6 56:2 57:38 58:879
59:479 60:335 61:1067 62:937 63:1964 64:4110
65:2302 66:4362 67:1986 68:1165 69:3132 70:922
71:410 72:1788 74:2643 75:431 76:320 77:929
78:867 79:492 80:1185 81:839 82:534 83:533
84:576 85:1160 86:753 87:905 88:361 89:1585
90:260 91:4376 92:524 93:1502 94:1341 95:1035
96:393 97:288 98:764 99:38 100:2 101:131
103:567 106:10 107:118 108:100 109:1421 110:675
111:822 112:421 113:490 114:589 115:679 116:853
117:687 118:870 119:1225 120:356 121:646 122:1583
123:1029 124:1297 125:1272 128:460 129:181 130:181
131:585 132:155 133:21 134:217 135:54 136:204
137:148 138:285 139:125 140:465 141:255 142:362
143:387 144:496 145:67 146:470 147:222 148:612
149:268 150:158 151:192 152:442 153:169 154:6
155:392 156:207 157:334 158:153 159:432 160:356
161:204 162:330 163:177 164:518 165:392 166:544
167:455 168:811 169:145 170:828 171:96 172:4
173:1809 174:589 175:408 176:316 177:426 178:1148
180:1208 181:39 182:664 183:261 184:413 185:1
186:1423 187:782 188:1004 189:1174 190:5303 192:5930
193:5437 194:3793 195:3180 196:1269 197:174 198:3569
199:4191 200:5467 201:1684 202:8281 203:8404 204:4269
205:2396 206:2592 207:2747 208:3999 209:3530 210:2673
211:1448 212:1973 213:1805 214:801 215:93 216:4878
217:1472 218:559 219:330 220:1222 221:509 222:297
223:252
End of report
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