Routing Table Report 08:00 +10GMT Mon 21 Nov, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 376552
Prefixes after maximum aggregation: 165002
Deaggregation factor: 2.28
Unique aggregates announced to Internet: 187755
Total ASes present in the Internet Routing Table: 37566
Prefixes per ASN: 10.02
Origin-only ASes present in the Internet Routing Table: 32414
Origin ASes announcing only one prefix: 15492
Transit ASes present in the Internet Routing Table: 5152
Transit-only ASes present in the Internet Routing Table: 126
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: 2475
Unregistered ASNs in the Routing Table: 968
Number of 32-bit ASNs allocated by the RIRs: 1972
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3829
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 83
Number of addresses announced to Internet: 2508690432
Equivalent to 149 /8s, 135 /16s and 148 /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: 157801
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90055
Total APNIC prefixes after maximum aggregation: 29850
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 87459
Unique aggregates announced from the APNIC address blocks: 38490
APNIC Region origin ASes present in the Internet Routing Table: 4561
APNIC Prefixes per ASN: 19.18
APNIC Region origin ASes announcing only one prefix: 1281
APNIC Region transit ASes present in the Internet Routing Table: 696
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: 629967872
Equivalent to 37 /8s, 140 /16s and 140 /24s
Percentage of available APNIC address space announced: 79.9
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: 144607
Total ARIN prefixes after maximum aggregation: 74049
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 117085
Unique aggregates announced from the ARIN address blocks: 48558
ARIN Region origin ASes present in the Internet Routing Table: 14680
ARIN Prefixes per ASN: 7.98
ARIN Region origin ASes announcing only one prefix: 5618
ARIN Region transit ASes present in the Internet Routing Table: 1498
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: 803211520
Equivalent to 47 /8s, 224 /16s and 9 /24s
Percentage of available ARIN address space announced: 63.8
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: 92941
Total RIPE prefixes after maximum aggregation: 51151
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 85154
Unique aggregates announced from the RIPE address blocks: 54456
RIPE Region origin ASes present in the Internet Routing Table: 16123
RIPE Prefixes per ASN: 5.28
RIPE Region origin ASes announcing only one prefix: 7997
RIPE Region transit ASes present in the Internet Routing Table: 2511
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: 492491520
Equivalent to 29 /8s, 90 /16s and 211 /24s
Percentage of available RIPE address space announced: 79.3
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: 35769
Total LACNIC prefixes after maximum aggregation: 7837
LACNIC Deaggregation factor: 4.56
Prefixes being announced from the LACNIC address blocks: 35372
Unique aggregates announced from the LACNIC address blocks: 18643
LACNIC Region origin ASes present in the Internet Routing Table: 1536
LACNIC Prefixes per ASN: 23.03
LACNIC Region origin ASes announcing only one prefix: 445
LACNIC Region transit ASes present in the Internet Routing Table: 270
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: 93122816
Equivalent to 5 /8s, 140 /16s and 241 /24s
Percentage of available LACNIC address space announced: 61.7
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: 8656
Total AfriNIC prefixes after maximum aggregation: 2042
AfriNIC Deaggregation factor: 4.24
Prefixes being announced from the AfriNIC address blocks: 6726
Unique aggregates announced from the AfriNIC address blocks: 2049
AfriNIC Region origin ASes present in the Internet Routing Table: 497
AfriNIC Prefixes per ASN: 13.53
AfriNIC Region origin ASes announcing only one prefix: 151
AfriNIC Region transit ASes present in the Internet Routing Table: 109
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: 27778560
Equivalent to 1 /8s, 167 /16s and 222 /24s
Percentage of available AfriNIC address space announced: 41.4
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 1951 11101 662 Korea Telecom (KIX)
7545 1624 303 87 TPG Internet Pty Ltd
17974 1574 511 36 PT Telekomunikasi Indonesia
4755 1518 377 169 TATA Communications formerly
9829 1166 989 28 National Internet Backbone
9583 1095 81 495 Sify Limited
7552 987 1062 11 Vietel Corporation
4808 982 1979 277 CNCGROUP IP network China169
24560 965 343 218 Bharti Airtel Ltd., Telemedia
18101 953 119 148 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 3486 3814 220 BellSouth.net Inc.
7029 2942 1042 212 Windstream Communications Inc
18566 2093 382 176 Covad Communications Co.
1785 1851 680 121 PaeTec Communications, Inc.
4323 1614 1094 390 tw telecom holdings, inc.
20115 1597 1546 624 Charter Communications
22773 1499 2909 103 Cox Communications Inc.
30036 1428 256 670 Mediacom Communications Corp
19262 1387 4683 401 Verizon Online LLC
7018 1321 7063 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 1574 416 14 Corbina telecom
6830 645 1927 411 UPC Broadband
34984 600 112 187 BILISIM TELEKOM
20940 555 183 437 Akamai Technologies European
9116 541 326 31 Goldenlines main autonomous s
3320 511 8168 388 Deutsche Telekom AG
12479 484 596 9 France Telecom Espana SA
3292 482 2106 410 TDC Data Networks
8866 462 133 26 Bulgarian Telecommunication C
8551 416 367 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 1695 314 176 Types of queries are: POCs, o
28573 1493 1044 70 Types of queries are: POCs, o
8151 1314 2953 340 Uninet S.A. de C.V.
7303 1238 751 173 Telecom Argentina S.A.
27947 597 72 87 Telconet S.A
22047 580 322 17 Types of queries are: POCs, o
7738 553 1050 31 Telecomunicacoes da Bahia S.A
6503 546 434 69 Axtel, S.A.B. de C.V.
3816 542 234 96 Types of queries are: POCs, o
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
24863 775 146 33 LINKdotNET AS number
8452 668 446 12 TEDATA
15475 455 74 8 Nile Online
36992 283 415 21 Etisalat MISR
3741 281 939 230 The Internet Solution
15706 242 32 6 Sudatel Internet Exchange Aut
6713 235 519 14 Itissalat Al-MAGHRIB
29571 218 17 13 Ci Telecom Autonomous system
33776 212 13 14 Starcomms Nigeria Limited
12258 197 28 58 Vodacom Internet Company
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 3486 3814 220 BellSouth.net Inc.
7029 2942 1042 212 Windstream Communications Inc
18566 2093 382 176 Covad Communications Co.
4766 1951 11101 662 Korea Telecom (KIX)
1785 1851 680 121 PaeTec Communications, Inc.
10620 1695 314 176 Types of queries are: POCs, o
7545 1624 303 87 TPG Internet Pty Ltd
4323 1614 1094 390 tw telecom holdings, inc.
20115 1597 1546 624 Charter Communications
8402 1574 416 14 Corbina telecom
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 1851 1730 PaeTec Communications, Inc.
8402 1574 1560 Corbina telecom
17974 1574 1538 PT Telekomunikasi Indonesia
7545 1624 1537 TPG Internet Pty Ltd
10620 1695 1519 Types of queries are: POCs, o
28573 1493 1423 Types of queries are: POCs, o
22773 1499 1396 Cox Communications Inc.
4755 1518 1349 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
128.0.0.0/16 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 /14:805 /15:1423 /16:11969 /17:6070 /18:10095
/19:20109 /20:27642 /21:27797 /22:37571 /23:35167 /24:196528
/25:12 /26:21 /27:22 /28:155 /29:132 /30:63
/31:0 /32:129
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2555 2942 Windstream Communications Inc
6389 2127 3486 BellSouth.net Inc.
18566 2043 2093 Covad Communications Co.
10620 1590 1695 Types of queries are: POCs, o
8402 1550 1574 Corbina telecom
30036 1388 1428 Mediacom Communications Corp
11492 1117 1154 CABLE ONE, INC.
1785 1058 1851 PaeTec Communications, Inc.
7011 1049 1166 Frontier Communications of Am
22773 959 1499 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:420 2:485 4:15 5:1 6:3 8:357
12:1959 13:1 14:542 15:11 16:3 17:7
20:9 23:63 24:1681 27:1022 31:701 32:60
33:1 34:2 36:4 38:760 40:109 41:2742
42:61 44:3 46:1056 47:3 49:292 50:453
52:13 55:7 56:2 57:45 58:870 59:486
60:356 61:1053 62:1098 63:1958 64:4043 65:2300
66:4328 67:2014 68:1171 69:3113 70:902 71:383
72:1801 74:2640 75:431 76:320 77:891 78:887
79:452 80:1137 81:839 82:518 83:523 84:619
85:1152 86:407 87:909 88:357 89:1597 90:235
91:4278 92:538 93:1445 94:1313 95:1107 96:423
97:285 98:793 99:37 101:117 103:494 106:1
107:95 108:80 109:1189 110:649 111:802 112:353
113:479 114:583 115:684 116:854 117:690 118:879
119:1215 120:316 121:651 122:1569 123:1015 124:1295
125:1291 128:243 129:176 130:170 131:631 132:147
133:21 134:220 135:54 136:209 137:143 138:285
139:120 140:465 141:249 142:369 143:398 144:494
145:65 146:466 147:218 148:610 149:263 150:156
151:192 152:447 153:172 154:6 155:390 156:205
157:326 158:156 159:425 160:329 161:205 162:368
163:164 164:514 165:367 166:541 167:444 168:819
169:145 170:826 171:87 172:4 173:1750 174:589
175:409 176:325 177:392 178:1117 180:1144 181:39
182:646 183:232 184:396 185:1 186:1404 187:774
188:975 189:1158 190:5186 192:5892 193:5052 194:3548
195:3110 196:1258 197:167 198:3564 199:4169 200:5459
201:1706 202:8263 203:8432 204:4239 205:2377 206:2501
207:2763 208:4019 209:3541 210:2642 211:1439 212:2029
213:1807 214:801 215:97 216:4836 217:1609 218:549
219:333 220:1217 221:490 222:299 223:276
End of report
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