Routing Table Report 08:00 +10GMT Mon 14 Nov, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 375802
Prefixes after maximum aggregation: 164679
Deaggregation factor: 2.28
Unique aggregates announced to Internet: 187585
Total ASes present in the Internet Routing Table: 37532
Prefixes per ASN: 10.01
Origin-only ASes present in the Internet Routing Table: 32383
Origin ASes announcing only one prefix: 15494
Transit ASes present in the Internet Routing Table: 5149
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: 30
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 2427
Unregistered ASNs in the Routing Table: 952
Number of 32-bit ASNs allocated by the RIRs: 1946
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3728
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 83
Number of addresses announced to Internet: 2507974912
Equivalent to 149 /8s, 124 /16s and 169 /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: 157516
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89882
Total APNIC prefixes after maximum aggregation: 29713
APNIC Deaggregation factor: 3.03
Prefixes being announced from the APNIC address blocks: 87273
Unique aggregates announced from the APNIC address blocks: 38415
APNIC Region origin ASes present in the Internet Routing Table: 4554
APNIC Prefixes per ASN: 19.16
APNIC Region origin ASes announcing only one prefix: 1284
APNIC Region transit ASes present in the Internet Routing Table: 690
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: 629656064
Equivalent to 37 /8s, 135 /16s and 202 /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: 145008
Total ARIN prefixes after maximum aggregation: 73981
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 117292
Unique aggregates announced from the ARIN address blocks: 48458
ARIN Region origin ASes present in the Internet Routing Table: 14680
ARIN Prefixes per ASN: 7.99
ARIN Region origin ASes announcing only one prefix: 5629
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: 804283392
Equivalent to 47 /8s, 240 /16s and 100 /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: 92295
Total RIPE prefixes after maximum aggregation: 50996
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 84754
Unique aggregates announced from the RIPE address blocks: 54570
RIPE Region origin ASes present in the Internet Routing Table: 16099
RIPE Prefixes per ASN: 5.26
RIPE Region origin ASes announcing only one prefix: 7979
RIPE Region transit ASes present in the Internet Routing Table: 2515
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 491906560
Equivalent to 29 /8s, 81 /16s and 230 /24s
Percentage of available RIPE address space announced: 79.2
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: 35603
Total LACNIC prefixes after maximum aggregation: 7861
LACNIC Deaggregation factor: 4.53
Prefixes being announced from the LACNIC address blocks: 35196
Unique aggregates announced from the LACNIC address blocks: 18583
LACNIC Region origin ASes present in the Internet Routing Table: 1533
LACNIC Prefixes per ASN: 22.96
LACNIC Region origin ASes announcing only one prefix: 447
LACNIC Region transit ASes present in the Internet Routing Table: 269
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: 92849408
Equivalent to 5 /8s, 136 /16s and 197 /24s
Percentage of available LACNIC address space announced: 61.5
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: 8588
Total AfriNIC prefixes after maximum aggregation: 2053
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6681
Unique aggregates announced from the AfriNIC address blocks: 2024
AfriNIC Region origin ASes present in the Internet Routing Table: 497
AfriNIC Prefixes per ASN: 13.44
AfriNIC Region origin ASes announcing only one prefix: 155
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: 27687168
Equivalent to 1 /8s, 166 /16s and 121 /24s
Percentage of available AfriNIC address space announced: 41.3
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 1948 11105 662 Korea Telecom (KIX)
7545 1624 303 88 TPG Internet Pty Ltd
17974 1597 511 36 PT Telekomunikasi Indonesia
4755 1516 378 171 TATA Communications formerly
9829 1166 989 28 National Internet Backbone
9583 1116 83 512 Sify Limited
7552 987 1062 11 Vietel Corporation
4808 976 2001 279 CNCGROUP IP network China169
24560 964 343 218 Bharti Airtel Ltd., Telemedia
18101 953 119 149 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 3543 3814 220 BellSouth.net Inc.
7029 2950 1042 212 Windstream Communications Inc
18566 2093 382 176 Covad Communications Co.
1785 1850 680 122 PaeTec Communications, Inc.
4323 1621 1093 388 tw telecom holdings, inc.
20115 1594 1545 624 Charter Communications
22773 1495 2909 103 Cox Communications Inc.
30036 1417 255 670 Mediacom Communications Corp
19262 1395 4728 400 Verizon Online LLC
7018 1318 7063 866 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 1374 416 14 Corbina telecom
6830 645 1927 411 UPC Broadband
34984 595 110 183 BILISIM TELEKOM
20940 552 182 434 Akamai Technologies European
9116 541 326 31 Goldenlines main autonomous s
3320 504 8168 389 Deutsche Telekom AG
3292 480 2074 408 TDC Data Networks
12479 480 596 9 France Telecom Espana SA
8866 462 133 26 Bulgarian Telecommunication C
31148 408 22 114 FreeNet ISP
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 1706 316 157 Types of queries are: POCs, o
28573 1450 1034 97 Types of queries are: POCs, o
8151 1305 2918 343 Uninet S.A. de C.V.
7303 1238 751 173 Telecom Argentina S.A.
27947 584 72 85 Telconet S.A
22047 580 322 17 Types of queries are: POCs, o
6503 555 434 69 Axtel, S.A.B. de C.V.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 542 234 96 Types of queries are: POCs, o
11172 524 101 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 785 146 33 LINKdotNET AS number
8452 704 446 12 TEDATA
15475 454 74 8 Nile Online
3741 281 939 230 The Internet Solution
36992 279 415 21 Etisalat MISR
15706 241 32 6 Sudatel Internet Exchange Aut
6713 235 519 14 Itissalat Al-MAGHRIB
33776 225 13 10 Starcomms Nigeria Limited
29571 218 17 13 Ci Telecom Autonomous system
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 3543 3814 220 BellSouth.net Inc.
7029 2950 1042 212 Windstream Communications Inc
18566 2093 382 176 Covad Communications Co.
4766 1948 11105 662 Korea Telecom (KIX)
1785 1850 680 122 PaeTec Communications, Inc.
10620 1706 316 157 Types of queries are: POCs, o
7545 1624 303 88 TPG Internet Pty Ltd
4323 1621 1093 388 tw telecom holdings, inc.
17974 1597 511 36 PT Telekomunikasi Indonesia
20115 1594 1545 624 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 2950 2738 Windstream Communications Inc
18566 2093 1917 Covad Communications Co.
1785 1850 1728 PaeTec Communications, Inc.
17974 1597 1561 PT Telekomunikasi Indonesia
10620 1706 1549 Types of queries are: POCs, o
7545 1624 1536 TPG Internet Pty Ltd
22773 1495 1392 Cox Communications Inc.
8402 1374 1360 Corbina telecom
28573 1450 1353 Types of queries are: POCs, o
4755 1516 1345 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 /14:806 /15:1418 /16:11976 /17:6046 /18:10052
/19:20077 /20:27569 /21:27650 /22:37251 /23:35062 /24:196517
/25:12 /26:21 /27:22 /28:155 /29:129 /30:63
/31:0 /32:134
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2564 2950 Windstream Communications Inc
6389 2183 3543 BellSouth.net Inc.
18566 2043 2093 Covad Communications Co.
10620 1601 1706 Types of queries are: POCs, o
30036 1377 1417 Mediacom Communications Corp
8402 1350 1374 Corbina telecom
11492 1099 1136 CABLE ONE, INC.
1785 1057 1850 PaeTec Communications, Inc.
7011 1051 1168 Frontier Communications of Am
22773 957 1495 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:408 2:441 4:15 5:1 6:3 8:356
12:1966 13:1 14:538 15:11 16:3 17:7
20:9 23:63 24:1675 27:1027 31:690 32:60
33:2 34:2 36:4 38:753 40:110 41:2713
42:60 44:3 46:1040 47:3 49:296 50:451
52:13 55:8 56:2 57:43 58:870 59:487
60:360 61:1030 62:1091 63:1966 64:4040 65:2301
66:4310 67:2016 68:1174 69:3140 70:903 71:388
72:1820 74:2627 75:430 76:319 77:877 78:867
79:479 80:1135 81:837 82:519 83:520 84:622
85:1153 86:409 87:932 88:355 89:1586 90:236
91:4249 92:536 93:1523 94:1304 95:1068 96:422
97:285 98:943 99:37 101:112 103:456 106:7
107:91 108:78 109:1183 110:647 111:803 112:353
113:463 114:608 115:679 116:858 117:695 118:877
119:1220 120:233 121:654 122:1568 123:1013 124:1296
125:1302 128:211 129:166 130:158 131:624 132:143
133:21 134:212 135:54 136:211 137:140 138:287
139:119 140:466 141:252 142:371 143:403 144:490
145:64 146:466 147:219 148:615 149:266 150:156
151:194 152:445 153:172 154:6 155:390 156:205
157:329 158:154 159:421 160:332 161:205 162:371
163:163 164:507 165:367 166:543 167:444 168:813
169:144 170:881 171:87 172:4 173:1742 174:703
175:404 176:292 177:367 178:1098 180:1140 181:38
182:640 183:228 184:393 185:1 186:1401 187:779
188:961 189:1163 190:5197 192:5880 193:5053 194:3547
195:3105 196:1248 197:165 198:3570 199:4172 200:5450
201:1697 202:8256 203:8429 204:4240 205:2360 206:2582
207:2745 208:4016 209:3562 210:2650 211:1408 212:2094
213:1808 214:777 215:96 216:4904 217:1600 218:536
219:339 220:1216 221:471 222:296 223:268
End of report
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