Routing Table Report 08:00 +10GMT Sat 26 Nov, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 377094
Prefixes after maximum aggregation: 165242
Deaggregation factor: 2.28
Unique aggregates announced to Internet: 188100
Total ASes present in the Internet Routing Table: 37570
Prefixes per ASN: 10.04
Origin-only ASes present in the Internet Routing Table: 32389
Origin ASes announcing only one prefix: 15470
Transit ASes present in the Internet Routing Table: 5181
Transit-only ASes present in the Internet Routing Table: 128
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: 2514
Unregistered ASNs in the Routing Table: 975
Number of 32-bit ASNs allocated by the RIRs: 1995
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3904
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 84
Number of addresses announced to Internet: 2510989312
Equivalent to 149 /8s, 170 /16s and 168 /24s
Percentage of available address space announced: 67.7
Percentage of allocated address space announced: 67.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.6
Total number of prefixes smaller than registry allocations: 157823
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90312
Total APNIC prefixes after maximum aggregation: 29934
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 87718
Unique aggregates announced from the APNIC address blocks: 38663
APNIC Region origin ASes present in the Internet Routing Table: 4555
APNIC Prefixes per ASN: 19.26
APNIC Region origin ASes announcing only one prefix: 1268
APNIC Region transit ASes present in the Internet Routing Table: 698
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: 630501888
Equivalent to 37 /8s, 148 /16s and 178 /24s
Percentage of available APNIC address space announced: 80.0
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: 144788
Total ARIN prefixes after maximum aggregation: 74093
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 117330
Unique aggregates announced from the ARIN address blocks: 48607
ARIN Region origin ASes present in the Internet Routing Table: 14685
ARIN Prefixes per ASN: 7.99
ARIN Region origin ASes announcing only one prefix: 5618
ARIN Region transit ASes present in the Internet Routing Table: 1494
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: 803607808
Equivalent to 47 /8s, 230 /16s and 21 /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: 93138
Total RIPE prefixes after maximum aggregation: 51216
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 85294
Unique aggregates announced from the RIPE address blocks: 54478
RIPE Region origin ASes present in the Internet Routing Table: 16125
RIPE Prefixes per ASN: 5.29
RIPE Region origin ASes announcing only one prefix: 7985
RIPE Region transit ASes present in the Internet Routing Table: 2533
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: 492656384
Equivalent to 29 /8s, 93 /16s and 87 /24s
Percentage of available RIPE address space announced: 79.4
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: 35988
Total LACNIC prefixes after maximum aggregation: 7907
LACNIC Deaggregation factor: 4.55
Prefixes being announced from the LACNIC address blocks: 35545
Unique aggregates announced from the LACNIC address blocks: 18740
LACNIC Region origin ASes present in the Internet Routing Table: 1537
LACNIC Prefixes per ASN: 23.13
LACNIC Region origin ASes announcing only one prefix: 443
LACNIC Region transit ASes present in the Internet Routing Table: 271
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: 93551872
Equivalent to 5 /8s, 147 /16s and 125 /24s
Percentage of available LACNIC address space announced: 62.0
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: 8267
Total AfriNIC prefixes after maximum aggregation: 2018
AfriNIC Deaggregation factor: 4.10
Prefixes being announced from the AfriNIC address blocks: 6363
Unique aggregates announced from the AfriNIC address blocks: 2006
AfriNIC Region origin ASes present in the Internet Routing Table: 497
AfriNIC Prefixes per ASN: 12.80
AfriNIC Region origin ASes announcing only one prefix: 156
AfriNIC Region transit ASes present in the Internet Routing Table: 109
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: 27871488
Equivalent to 1 /8s, 169 /16s and 73 /24s
Percentage of available AfriNIC address space announced: 41.5
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 1954 11102 666 Korea Telecom (KIX)
7545 1623 303 86 TPG Internet Pty Ltd
17974 1572 511 36 PT Telekomunikasi Indonesia
4755 1501 376 168 TATA Communications formerly
9829 1166 989 28 National Internet Backbone
9583 1095 80 494 Sify Limited
24560 966 343 218 Bharti Airtel Ltd., Telemedia
18101 954 119 149 Reliance Infocom Ltd Internet
4808 940 1978 276 CNCGROUP IP network China169
7552 939 1062 11 Vietel Corporation
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 3479 3814 218 BellSouth.net Inc.
7029 2942 1042 212 Windstream Communications Inc
18566 2093 382 176 Covad Communications Co.
1785 1852 680 121 PaeTec Communications, Inc.
4323 1613 1094 390 tw telecom holdings, inc.
20115 1599 1546 624 Charter Communications
22773 1501 2909 104 Cox Communications Inc.
30036 1439 258 675 Mediacom Communications Corp
19262 1387 4683 401 Verizon Online LLC
7018 1322 7063 868 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 1555 480 15 Corbina telecom
6830 650 1927 412 UPC Broadband
34984 611 114 192 BILISIM TELEKOM
20940 558 186 440 Akamai Technologies European
9116 541 326 31 Goldenlines main autonomous s
3320 511 8168 388 Deutsche Telekom AG
12479 504 606 23 France Telecom Espana SA
3292 480 2106 408 TDC Data Networks
8866 462 133 26 Bulgarian Telecommunication C
8551 417 367 39 Bezeq International
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 1700 315 179 Types of queries are: POCs, o
28573 1509 1045 71 Types of queries are: POCs, o
8151 1313 2954 337 Uninet S.A. de C.V.
7303 1236 751 173 Telecom Argentina S.A.
27947 598 72 87 Telconet S.A
22047 581 322 17 Types of queries are: POCs, o
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 547 237 87 Types of queries are: POCs, o
6503 542 434 69 Axtel, S.A.B. de C.V.
11172 528 101 96 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
8452 902 446 12 TEDATA
24863 777 146 33 LINKdotNET AS number
3741 278 938 227 The Internet Solution
15706 242 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
6713 235 519 14 Itissalat Al-MAGHRIB
29571 218 17 13 Ci Telecom Autonomous system
12258 197 28 58 Vodacom Internet Company
24835 192 80 8 RAYA Telecom - Egypt
36923 157 20 4 Swift Networks Limited
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 3479 3814 218 BellSouth.net Inc.
7029 2942 1042 212 Windstream Communications Inc
18566 2093 382 176 Covad Communications Co.
4766 1954 11102 666 Korea Telecom (KIX)
1785 1852 680 121 PaeTec Communications, Inc.
10620 1700 315 179 Types of queries are: POCs, o
7545 1623 303 86 TPG Internet Pty Ltd
4323 1613 1094 390 tw telecom holdings, inc.
20115 1599 1546 624 Charter Communications
17974 1572 511 36 PT Telekomunikasi Indonesia
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 2942 2730 Windstream Communications Inc
18566 2093 1917 Covad Communications Co.
1785 1852 1731 PaeTec Communications, Inc.
8402 1555 1540 Corbina telecom
7545 1623 1537 TPG Internet Pty Ltd
17974 1572 1536 PT Telekomunikasi Indonesia
10620 1700 1521 Types of queries are: POCs, o
28573 1509 1438 Types of queries are: POCs, o
22773 1501 1397 Cox Communications Inc.
4755 1501 1333 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
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 37345 MEDALLION Communications
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 /12:237
/13:465 /14:807 /15:1430 /16:11982 /17:6069 /18:10104
/19:20106 /20:27631 /21:27837 /22:37700 /23:35288 /24:196762
/25:11 /26:21 /27:21 /28:154 /29:133 /30:63
/31:0 /32:133
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2555 2942 Windstream Communications Inc
6389 2122 3479 BellSouth.net Inc.
18566 2043 2093 Covad Communications Co.
10620 1595 1700 Types of queries are: POCs, o
8402 1530 1555 Corbina telecom
30036 1399 1439 Mediacom Communications Corp
11492 1118 1155 CABLE ONE, INC.
1785 1058 1852 PaeTec Communications, Inc.
7011 1050 1167 Frontier Communications of Am
22773 961 1501 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:421 2:481 4:15 5:1 6:3 8:358
12:1951 13:1 14:546 15:11 16:3 17:7
20:9 23:68 24:1690 27:1031 31:683 32:61
33:2 34:2 36:4 38:762 40:109 41:2860
42:64 44:3 46:1098 47:3 49:293 50:449
52:13 55:6 56:2 57:45 58:869 59:481
60:356 61:1064 62:920 63:1961 64:4057 65:2307
66:4334 67:2010 68:1172 69:3145 70:902 71:359
72:1814 74:2649 75:430 76:320 77:885 78:890
79:460 80:1131 81:840 82:525 83:522 84:470
85:1151 86:408 87:909 88:353 89:1600 90:246
91:4285 92:537 93:1418 94:1325 95:1115 96:391
97:285 98:773 99:37 101:125 103:502 106:7
107:97 108:86 109:1199 110:658 111:807 112:354
113:482 114:617 115:686 116:876 117:693 118:859
119:1224 120:348 121:652 122:1556 123:1021 124:1298
125:1302 128:235 129:176 130:170 131:629 132:147
133:21 134:216 135:54 136:204 137:142 138:285
139:120 140:468 141:249 142:362 143:398 144:495
145:66 146:470 147:218 148:619 149:274 150:156
151:191 152:447 153:172 154:6 155:394 156:205
157:329 158:156 159:427 160:332 161:205 162:362
163:165 164:514 165:383 166:540 167:448 168:821
169:144 170:826 171:87 172:4 173:1750 174:581
175:414 176:330 177:401 178:1127 180:1171 181:39
182:652 183:239 184:394 185:1 186:1463 187:785
188:988 189:1160 190:5201 192:5884 193:5056 194:3543
195:3110 196:1256 197:170 198:3563 199:4179 200:5455
201:1706 202:8265 203:8420 204:4236 205:2391 206:2569
207:2769 208:4016 209:3557 210:2665 211:1442 212:2028
213:1804 214:785 215:96 216:4897 217:1479 218:556
219:334 220:1215 221:503 222:298 223:277
End of report
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