Routing Table Report 08:00 +10GMT Fri 30 Sep, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 368910
Prefixes after maximum aggregation: 166586
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 185138
Total ASes present in the Internet Routing Table: 37297
Prefixes per ASN: 9.89
Origin-only ASes present in the Internet Routing Table: 32194
Origin ASes announcing only one prefix: 15478
Transit ASes present in the Internet Routing Table: 5103
Transit-only ASes present in the Internet Routing Table: 127
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 31
Max AS path prepend of ASN (51310) 23
Prefixes from unregistered ASNs in the Routing Table: 2220
Unregistered ASNs in the Routing Table: 870
Number of 32-bit ASNs allocated by the RIRs: 1796
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3328
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 96
Number of addresses announced to Internet: 2498527232
Equivalent to 148 /8s, 236 /16s and 128 /24s
Percentage of available address space announced: 67.4
Percentage of allocated address space announced: 67.4
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.4
Total number of prefixes smaller than registry allocations: 152990
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89086
Total APNIC prefixes after maximum aggregation: 29455
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 86548
Unique aggregates announced from the APNIC address blocks: 38007
APNIC Region origin ASes present in the Internet Routing Table: 4522
APNIC Prefixes per ASN: 19.14
APNIC Region origin ASes announcing only one prefix: 1269
APNIC Region transit ASes present in the Internet Routing Table: 680
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 627776512
Equivalent to 37 /8s, 107 /16s and 28 /24s
Percentage of available APNIC address space announced: 79.6
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: 142686
Total ARIN prefixes after maximum aggregation: 73426
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 115164
Unique aggregates announced from the ARIN address blocks: 48107
ARIN Region origin ASes present in the Internet Routing Table: 14617
ARIN Prefixes per ASN: 7.88
ARIN Region origin ASes announcing only one prefix: 5641
ARIN Region transit ASes present in the Internet Routing Table: 1489
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: 805075456
Equivalent to 47 /8s, 252 /16s and 122 /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: 90122
Total RIPE prefixes after maximum aggregation: 50291
RIPE Deaggregation factor: 1.79
Prefixes being announced from the RIPE address blocks: 82818
Unique aggregates announced from the RIPE address blocks: 54093
RIPE Region origin ASes present in the Internet Routing Table: 15982
RIPE Prefixes per ASN: 5.18
RIPE Region origin ASes announcing only one prefix: 7969
RIPE Region transit ASes present in the Internet Routing Table: 2503
Average RIPE Region AS path length visible: 3.4
Max RIPE Region AS path length visible: 31
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 489893632
Equivalent to 29 /8s, 51 /16s and 47 /24s
Percentage of available RIPE address space announced: 78.9
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: 34428
Total LACNIC prefixes after maximum aggregation: 7730
LACNIC Deaggregation factor: 4.45
Prefixes being announced from the LACNIC address blocks: 33899
Unique aggregates announced from the LACNIC address blocks: 17953
LACNIC Region origin ASes present in the Internet Routing Table: 1514
LACNIC Prefixes per ASN: 22.39
LACNIC Region origin ASes announcing only one prefix: 447
LACNIC Region transit ASes present in the Internet Routing Table: 265
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 89519360
Equivalent to 5 /8s, 85 /16s and 245 /24s
Percentage of available LACNIC address space announced: 59.3
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: 8547
Total AfriNIC prefixes after maximum aggregation: 2003
AfriNIC Deaggregation factor: 4.27
Prefixes being announced from the AfriNIC address blocks: 6602
Unique aggregates announced from the AfriNIC address blocks: 1952
AfriNIC Region origin ASes present in the Internet Routing Table: 486
AfriNIC Prefixes per ASN: 13.58
AfriNIC Region origin ASes announcing only one prefix: 152
AfriNIC Region transit ASes present in the Internet Routing Table: 103
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: 27681024
Equivalent to 1 /8s, 166 /16s and 97 /24s
Percentage of available AfriNIC address space announced: 41.2
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 1944 11040 655 Korea Telecom (KIX)
17974 1709 519 33 PT Telekomunikasi Indonesia
7545 1604 303 86 TPG Internet Pty Ltd
4755 1539 638 175 TATA Communications formerly
24560 1184 346 190 Bharti Airtel Ltd., Telemedia
9829 1158 989 28 National Internet Backbone
9583 1086 80 502 Sify Limited
18101 954 166 144 Reliance Infocom Ltd Internet
7552 942 1062 11 Vietel Corporation
4808 936 2003 269 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 3558 3817 226 BellSouth.net Inc.
18566 1913 365 237 Covad Communications Co.
1785 1831 680 123 PaeTec Communications, Inc.
7029 1750 1033 206 Windstream Communications Inc
4323 1625 1098 392 tw telecom holdings, inc.
20115 1594 1542 635 Charter Communications
22773 1455 2907 100 Cox Communications Inc.
30036 1405 261 669 Mediacom Communications Corp
19262 1394 4728 400 Verizon Online LLC
7018 1350 7084 883 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 1062 352 13 Corbina telecom
34984 576 108 179 BILISIM TELEKOM
6830 555 1873 332 UPC Broadband
9116 540 326 31 Goldenlines main autonomous s
20940 522 176 410 Akamai Technologies European
3320 501 8169 383 Deutsche Telekom AG
3292 480 2082 409 TDC Data Networks
12479 474 593 7 France Telecom Espana SA
8866 459 133 26 Bulgarian Telecommunication C
29049 423 31 55 AzerSat LLC.
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 1681 310 155 Types of queries are: POCs, o
28573 1356 1013 70 Types of queries are: POCs, o
8151 1268 2804 339 Uninet S.A. de C.V.
7303 1163 683 175 Telecom Argentina S.A.
14420 742 58 87 CORPORACION NACIONAL DE TELEC
22047 581 322 17 Types of queries are: POCs, o
27947 564 72 79 Telconet S.A
6503 563 450 70 Axtel, S.A.B. de C.V.
3816 537 232 99 Types of queries are: POCs, o
11172 519 101 93 Alestra, S. de R.L. 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
24863 810 147 35 LINKdotNET AS number
8452 663 445 11 TEDATA
15475 449 74 8 Nile Online
36992 292 415 14 Etisalat MISR
3741 274 938 229 The Internet Solution
15706 244 32 6 Sudatel Internet Exchange Aut
6713 242 519 14 Itissalat Al-MAGHRIB
33776 239 13 8 Starcomms Nigeria Limited
12258 199 28 59 Vodacom Internet Company
29571 192 17 11 Ci Telecom Autonomous system
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 3558 3817 226 BellSouth.net Inc.
4766 1944 11040 655 Korea Telecom (KIX)
18566 1913 365 237 Covad Communications Co.
1785 1831 680 123 PaeTec Communications, Inc.
7029 1750 1033 206 Windstream Communications Inc
17974 1709 519 33 PT Telekomunikasi Indonesia
10620 1681 310 155 Types of queries are: POCs, o
4323 1625 1098 392 tw telecom holdings, inc.
7545 1604 303 86 TPG Internet Pty Ltd
20115 1594 1542 635 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
1785 1831 1708 PaeTec Communications, Inc.
18566 1913 1676 Covad Communications Co.
17974 1709 1676 PT Telekomunikasi Indonesia
7029 1750 1544 Windstream Communications Inc
10620 1681 1526 Types of queries are: POCs, o
7545 1604 1518 TPG Internet Pty Ltd
4755 1539 1364 TATA Communications formerly
22773 1455 1355 Cox Communications Inc.
4766 1944 1289 Korea Telecom (KIX)
28573 1356 1286 Types of queries are: POCs, o
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.
26973 UNALLOCATED 12.39.152.0/24 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
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
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV
62.61.221.0/24 24974 Tachyon Europe BV
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 /12:235
/13:464 /14:803 /15:1419 /16:11963 /17:5972 /18:10000
/19:19927 /20:26973 /21:27078 /22:36472 /23:34512 /24:192423
/25:12 /26:20 /27:24 /28:156 /29:125 /30:59
/31:0 /32:133
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2194 3558 BellSouth.net Inc.
18566 1869 1913 Covad Communications Co.
10620 1576 1681 Types of queries are: POCs, o
7029 1430 1750 Windstream Communications Inc
30036 1362 1405 Mediacom Communications Corp
11492 1113 1150 CABLE ONE, INC.
1785 1053 1831 PaeTec Communications, Inc.
7011 1052 1173 Frontier Communications of Am
8402 1009 1062 Corbina telecom
22773 944 1455 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:381 2:314 4:15 5:1 6:3 8:353
12:1955 13:1 14:520 15:13 16:3 17:7
20:10 23:35 24:1682 27:957 31:563 32:59
33:4 34:2 36:4 38:742 40:108 41:2633
42:49 44:3 46:991 47:3 49:262 50:429
52:13 55:2 56:2 57:36 58:830 59:489
60:362 61:1014 62:1100 63:1927 64:4020 65:2303
66:3972 67:1955 68:1112 69:3186 70:810 71:377
72:1856 74:2453 75:348 76:340 77:879 78:813
79:489 80:1125 81:854 82:508 83:592 84:622
85:1115 86:415 87:882 88:353 89:1573 90:268
91:4138 92:529 93:1308 94:1288 95:899 96:432
97:277 98:916 99:37 101:84 103:326 106:70
107:55 108:75 109:1029 110:628 111:792 112:314
113:429 114:562 115:670 116:863 117:678 118:857
119:1188 120:331 121:666 122:1597 123:1003 124:1297
125:1334 128:206 129:162 130:159 131:577 132:104
133:21 134:206 135:54 136:211 137:136 138:288
139:118 140:474 141:290 142:370 143:412 144:484
145:63 146:466 147:215 148:619 149:261 150:146
151:193 152:444 153:177 154:5 155:386 156:204
157:330 158:150 159:396 160:322 161:195 162:333
163:167 164:507 165:373 166:536 167:432 168:732
169:145 170:863 171:84 172:1 173:1642 174:647
175:409 176:215 177:287 178:1016 180:1081 181:37
182:615 183:209 184:368 185:1 186:1475 187:674
188:923 189:843 190:5149 192:5863 193:5012 194:3528
195:3074 196:1249 197:176 198:3571 199:4096 200:5448
201:1636 202:8277 203:8353 204:4184 205:2336 206:2590
207:2755 208:4065 209:3437 210:2625 211:1453 212:2090
213:1778 214:784 215:74 216:4868 217:1610 218:553
219:331 220:1186 221:494 222:292 223:258
End of report
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