Routing Table Report 08:00 +10GMT Sat 10 Sep, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 363919
Prefixes after maximum aggregation: 165635
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 183976
Total ASes present in the Internet Routing Table: 37154
Prefixes per ASN: 9.79
Origin-only ASes present in the Internet Routing Table: 32064
Origin ASes announcing only one prefix: 15426
Transit ASes present in the Internet Routing Table: 5090
Transit-only ASes present in the Internet Routing Table: 129
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 43
Max AS path prepend of ASN (50137) 41
Prefixes from unregistered ASNs in the Routing Table: 2570
Unregistered ASNs in the Routing Table: 779
Number of 32-bit ASNs allocated by the RIRs: 1711
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3209
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 101
Number of addresses announced to Internet: 2491386624
Equivalent to 148 /8s, 127 /16s and 139 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.2
Total number of prefixes smaller than registry allocations: 150099
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 88309
Total APNIC prefixes after maximum aggregation: 29281
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 85772
Unique aggregates announced from the APNIC address blocks: 37932
APNIC Region origin ASes present in the Internet Routing Table: 4496
APNIC Prefixes per ASN: 19.08
APNIC Region origin ASes announcing only one prefix: 1253
APNIC Region transit ASes present in the Internet Routing Table: 686
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: 625005824
Equivalent to 37 /8s, 64 /16s and 213 /24s
Percentage of available APNIC address space announced: 79.3
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: 141719
Total ARIN prefixes after maximum aggregation: 73183
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113897
Unique aggregates announced from the ARIN address blocks: 47956
ARIN Region origin ASes present in the Internet Routing Table: 14564
ARIN Prefixes per ASN: 7.82
ARIN Region origin ASes announcing only one prefix: 5623
ARIN Region transit ASes present in the Internet Routing Table: 1473
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 36
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 804631296
Equivalent to 47 /8s, 245 /16s and 179 /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: 88278
Total RIPE prefixes after maximum aggregation: 49935
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 81348
Unique aggregates announced from the RIPE address blocks: 53805
RIPE Region origin ASes present in the Internet Routing Table: 15935
RIPE Prefixes per ASN: 5.10
RIPE Region origin ASes announcing only one prefix: 7950
RIPE Region transit ASes present in the Internet Routing Table: 2501
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 43
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 488695040
Equivalent to 29 /8s, 32 /16s and 229 /24s
Percentage of available RIPE address space announced: 78.7
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: 33688
Total LACNIC prefixes after maximum aggregation: 7635
LACNIC Deaggregation factor: 4.41
Prefixes being announced from the LACNIC address blocks: 33174
Unique aggregates announced from the LACNIC address blocks: 17489
LACNIC Region origin ASes present in the Internet Routing Table: 1504
LACNIC Prefixes per ASN: 22.06
LACNIC Region origin ASes announcing only one prefix: 450
LACNIC Region transit ASes present in the Internet Routing Table: 259
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: 88406784
Equivalent to 5 /8s, 68 /16s and 251 /24s
Percentage of available LACNIC address space announced: 58.5
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: 8020
Total AfriNIC prefixes after maximum aggregation: 2046
AfriNIC Deaggregation factor: 3.92
Prefixes being announced from the AfriNIC address blocks: 6162
Unique aggregates announced from the AfriNIC address blocks: 1984
AfriNIC Region origin ASes present in the Internet Routing Table: 477
AfriNIC Prefixes per ASN: 12.92
AfriNIC Region origin ASes announcing only one prefix: 150
AfriNIC Region transit ASes present in the Internet Routing Table: 102
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: 27253760
Equivalent to 1 /8s, 159 /16s and 220 /24s
Percentage of available AfriNIC address space announced: 40.6
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 1943 11039 648 Korea Telecom (KIX)
17974 1679 516 31 PT Telekomunikasi Indonesia
7545 1577 301 82 TPG Internet Pty Ltd
4755 1540 374 166 TATA Communications formerly
24560 1177 336 193 Bharti Airtel Ltd., Telemedia
9829 1152 989 28 National Internet Backbone
9583 1079 80 503 Sify Limited
7552 1000 1062 11 Vietel Corporation
4808 956 1996 271 CNCGROUP IP network China169
18101 950 118 139 Reliance Infocom Ltd Internet
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 3563 3817 227 BellSouth.net Inc.
18566 1910 364 235 Covad Communications Co.
1785 1825 680 122 PaeTec Communications, Inc.
4323 1626 1101 396 tw telecom holdings, inc.
20115 1590 1540 634 Charter Communications
7029 1517 1033 209 Windstream Communications Inc
22773 1449 2905 98 Cox Communications Inc.
19262 1393 4724 399 Verizon Online LLC
7018 1344 7084 884 AT&T Services, Inc.
30036 1326 243 686 Mediacom Communications Corp
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
34984 544 107 178 BILISIM TELEKOM
9116 540 326 31 Goldenlines main autonomous s
6830 525 1811 322 UPC Broadband
20940 501 155 389 Akamai Technologies European
3292 472 2080 406 TDC Data Networks
12479 468 594 8 France Telecom Espana SA
8866 460 134 27 Bulgarian Telecommunication C
3320 430 8152 374 Deutsche Telekom AG
29049 424 31 55 AzerSat LLC.
8551 405 355 38 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 1661 305 161 Types of queries are: POCs, o
28573 1293 1003 71 Types of queries are: POCs, o
8151 1267 2782 348 Uninet S.A. de C.V.
7303 1051 578 166 Telecom Argentina S.A.
14420 715 57 88 CORPORACION NACIONAL DE TELEC
22047 579 322 17 Types of queries are: POCs, o
6503 570 450 69 Axtel, S.A.B. de C.V.
27947 554 56 77 Telconet S.A
3816 537 232 99 Types of queries are: POCs, o
7738 515 986 31 Telecomunicacoes da Bahia S.A
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 764 147 41 LINKdotNET AS number
8452 550 445 11 TEDATA
15475 512 74 8 Nile Online
36992 300 415 14 Etisalat MISR
3741 267 938 228 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
15706 219 32 6 Sudatel Internet Exchange Aut
33776 204 13 14 Starcomms Nigeria Limited
12258 194 28 63 Vodacom Internet Company
24835 179 70 11 RAYA Telecom - Egypt
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 3563 3817 227 BellSouth.net Inc.
23456 3209 763 1734 32-bit ASN transition
4766 1943 11039 648 Korea Telecom (KIX)
18566 1910 364 235 Covad Communications Co.
1785 1825 680 122 PaeTec Communications, Inc.
17974 1679 516 31 PT Telekomunikasi Indonesia
10620 1661 305 161 Types of queries are: POCs, o
4323 1626 1101 396 tw telecom holdings, inc.
20115 1590 1540 634 Charter Communications
7545 1577 301 82 TPG Internet Pty Ltd
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 1825 1703 PaeTec Communications, Inc.
18566 1910 1675 Covad Communications Co.
17974 1679 1648 PT Telekomunikasi Indonesia
10620 1661 1500 Types of queries are: POCs, o
7545 1577 1495 TPG Internet Pty Ltd
23456 3209 1475 32-bit ASN transition
4755 1540 1374 TATA Communications formerly
22773 1449 1351 Cox Communications Inc.
7029 1517 1308 Windstream Communications Inc
4766 1943 1295 Korea Telecom (KIX)
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 65535 Internet Assigned Numbers Aut
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<<
46.18.104.0/21 23456 32-bit ASN transition
62.61.220.0/24 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
/13:463 /14:797 /15:1408 /16:11911 /17:5930 /18:9961
/19:19795 /20:26711 /21:26773 /22:35628 /23:34251 /24:189403
/25:12 /26:20 /27:23 /28:159 /29:112 /30:60
/31:0 /32:127
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2199 3563 BellSouth.net Inc.
18566 1867 1910 Covad Communications Co.
10620 1556 1661 Types of queries are: POCs, o
23456 1552 3209 32-bit ASN transition
30036 1289 1326 Mediacom Communications Corp
7029 1229 1517 Windstream Communications Inc
11492 1100 1138 CABLE ONE, INC.
7011 1058 1183 Frontier Communications of Am
1785 1052 1825 PaeTec Communications, Inc.
22773 940 1449 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:369 2:50 4:15 5:1 6:3 8:346
12:1945 13:1 14:519 15:13 16:3 17:5
20:10 23:31 24:1665 27:926 31:516 32:59
33:3 34:2 36:4 38:732 40:107 41:2266
42:41 44:3 46:972 47:3 49:232 50:412
52:13 54:2 55:6 56:2 57:34 58:817
59:492 60:329 61:1008 62:1087 63:1935 64:3990
65:2301 66:3916 67:1944 68:1109 69:3165 70:779
71:377 72:1855 74:2429 75:324 76:338 77:867
78:666 79:464 80:1124 81:844 82:508 83:490
84:686 85:1087 86:418 87:864 88:346 89:1539
90:232 91:4067 92:524 93:1130 94:1341 95:801
96:419 97:272 98:913 99:37 100:1 101:75
103:264 106:71 107:43 108:76 109:1013 110:634
111:737 112:311 113:421 114:551 115:687 116:897
117:658 118:835 119:1172 120:332 121:668 122:1597
123:1002 124:1280 125:1308 128:210 129:174 130:160
131:578 132:111 133:21 134:207 135:52 136:210
137:131 138:293 139:107 140:471 141:289 142:371
143:412 144:490 145:60 146:460 147:215 148:610
149:249 150:146 151:189 152:442 153:179 154:5
155:393 156:198 157:323 158:143 159:391 160:321
161:198 162:332 163:156 164:512 165:369 166:536
167:432 168:737 169:144 170:847 171:84 172:1
173:1642 174:631 175:391 176:166 177:246 178:1005
180:1009 181:26 182:595 183:229 184:353 185:1
186:1406 187:672 188:940 189:865 190:5119 192:5870
193:4999 194:3521 195:3049 196:1205 197:148 198:3530
199:4063 200:5439 201:1476 202:8191 203:8374 204:4170
205:2305 206:2590 207:2753 208:4004 209:3417 210:2585
211:1456 212:2101 213:1743 214:771 215:75 216:4813
217:1599 218:541 219:340 220:1185 221:499 222:303
223:255
End of report
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