Routing Table Report 08:00 +10GMT Tue 15 Nov, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 376031
Prefixes after maximum aggregation: 164822
Deaggregation factor: 2.28
Unique aggregates announced to Internet: 187231
Total ASes present in the Internet Routing Table: 37546
Prefixes per ASN: 10.02
Origin-only ASes present in the Internet Routing Table: 32395
Origin ASes announcing only one prefix: 15504
Transit ASes present in the Internet Routing Table: 5151
Transit-only ASes present in the Internet Routing Table: 130
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: 2425
Unregistered ASNs in the Routing Table: 955
Number of 32-bit ASNs allocated by the RIRs: 1947
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: 85
Number of addresses announced to Internet: 2507505664
Equivalent to 149 /8s, 117 /16s and 128 /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: 157493
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90069
Total APNIC prefixes after maximum aggregation: 29811
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 87450
Unique aggregates announced from the APNIC address blocks: 38294
APNIC Region origin ASes present in the Internet Routing Table: 4562
APNIC Prefixes per ASN: 19.17
APNIC Region origin ASes announcing only one prefix: 1288
APNIC Region transit ASes present in the Internet Routing Table: 692
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: 629582080
Equivalent to 37 /8s, 134 /16s and 169 /24s
Percentage of available APNIC address space announced: 79.8
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: 145053
Total ARIN prefixes after maximum aggregation: 74005
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 117478
Unique aggregates announced from the ARIN address blocks: 48483
ARIN Region origin ASes present in the Internet Routing Table: 14680
ARIN Prefixes per ASN: 8.00
ARIN Region origin ASes announcing only one prefix: 5630
ARIN Region transit ASes present in the Internet Routing Table: 1495
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: 804028928
Equivalent to 47 /8s, 236 /16s and 130 /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: 92250
Total RIPE prefixes after maximum aggregation: 51049
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 84510
Unique aggregates announced from the RIPE address blocks: 54315
RIPE Region origin ASes present in the Internet Routing Table: 16104
RIPE Prefixes per ASN: 5.25
RIPE Region origin ASes announcing only one prefix: 7987
RIPE Region transit ASes present in the Internet Routing Table: 2519
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: 491845888
Equivalent to 29 /8s, 80 /16s and 249 /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: 35669
Total LACNIC prefixes after maximum aggregation: 7842
LACNIC Deaggregation factor: 4.55
Prefixes being announced from the LACNIC address blocks: 35264
Unique aggregates announced from the LACNIC address blocks: 18598
LACNIC Region origin ASes present in the Internet Routing Table: 1532
LACNIC Prefixes per ASN: 23.02
LACNIC Region origin ASes announcing only one prefix: 445
LACNIC Region transit ASes present in the Internet Routing Table: 268
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: 92902656
Equivalent to 5 /8s, 137 /16s and 149 /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: 8576
Total AfriNIC prefixes after maximum aggregation: 2040
AfriNIC Deaggregation factor: 4.20
Prefixes being announced from the AfriNIC address blocks: 6654
Unique aggregates announced from the AfriNIC address blocks: 2009
AfriNIC Region origin ASes present in the Internet Routing Table: 495
AfriNIC Prefixes per ASN: 13.44
AfriNIC Region origin ASes announcing only one prefix: 154
AfriNIC Region transit ASes present in the Internet Routing Table: 108
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: 27616768
Equivalent to 1 /8s, 165 /16s and 102 /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 1948 11105 662 Korea Telecom (KIX)
7545 1624 303 88 TPG Internet Pty Ltd
17974 1591 511 36 PT Telekomunikasi Indonesia
4755 1515 378 170 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 954 119 149 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 2952 1042 212 Windstream Communications Inc
18566 2093 382 176 Covad Communications Co.
1785 1851 680 122 PaeTec Communications, Inc.
4323 1622 1093 388 tw telecom holdings, inc.
20115 1595 1545 624 Charter Communications
22773 1495 2909 103 Cox Communications Inc.
30036 1419 256 670 Mediacom Communications Corp
19262 1395 4728 400 Verizon Online LLC
7018 1317 7063 865 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 1380 416 14 Corbina telecom
6830 645 1927 411 UPC Broadband
34984 597 111 185 BILISIM TELEKOM
20940 553 182 435 Akamai Technologies European
9116 541 326 31 Goldenlines main autonomous s
3320 512 8168 389 Deutsche Telekom AG
12479 480 596 9 France Telecom Espana SA
3292 479 2074 407 TDC Data Networks
8866 460 133 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 1482 1043 79 Types of queries are: POCs, o
8151 1306 2918 342 Uninet S.A. de C.V.
7303 1238 751 173 Telecom Argentina S.A.
27947 586 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 774 146 33 LINKdotNET AS number
8452 682 446 12 TEDATA
15475 454 74 8 Nile Online
36992 282 415 20 Etisalat MISR
3741 281 939 230 The Internet Solution
15706 241 32 6 Sudatel Internet Exchange Aut
33776 239 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
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 2952 1042 212 Windstream Communications Inc
18566 2093 382 176 Covad Communications Co.
4766 1948 11105 662 Korea Telecom (KIX)
1785 1851 680 122 PaeTec Communications, Inc.
10620 1706 316 157 Types of queries are: POCs, o
7545 1624 303 88 TPG Internet Pty Ltd
4323 1622 1093 388 tw telecom holdings, inc.
20115 1595 1545 624 Charter Communications
17974 1591 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 2952 2740 Windstream Communications Inc
18566 2093 1917 Covad Communications Co.
1785 1851 1729 PaeTec Communications, Inc.
17974 1591 1555 PT Telekomunikasi Indonesia
10620 1706 1549 Types of queries are: POCs, o
7545 1624 1536 TPG Internet Pty Ltd
28573 1482 1403 Types of queries are: POCs, o
22773 1495 1392 Cox Communications Inc.
8402 1380 1366 Corbina telecom
4755 1515 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 /14:805 /15:1418 /16:11975 /17:6048 /18:10054
/19:20075 /20:27573 /21:27690 /22:37402 /23:35043 /24:196580
/25:12 /26:21 /27:22 /28:152 /29:128 /30:60
/31:0 /32:131
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2566 2952 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 1379 1419 Mediacom Communications Corp
8402 1356 1380 Corbina telecom
11492 1117 1154 CABLE ONE, INC.
1785 1058 1851 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)
----------------------------------------------
1:409 2:446 4:15 5:1 6:3 8:357
12:1966 13:1 14:540 15:11 16:3 17:7
20:9 23:63 24:1678 27:1029 31:694 32:60
33:2 34:2 36:4 38:754 40:110 41:2716
42:60 44:3 46:1044 47:3 49:296 50:451
52:13 55:5 56:2 57:43 58:860 59:487
60:356 61:1030 62:1092 63:1968 64:4039 65:2298
66:4310 67:2016 68:1174 69:3140 70:903 71:389
72:1820 74:2629 75:430 76:319 77:889 78:863
79:488 80:1136 81:829 82:515 83:518 84:621
85:1155 86:409 87:900 88:354 89:1589 90:236
91:4256 92:535 93:1419 94:1296 95:1065 96:422
97:285 98:943 99:37 101:114 103:460 106:7
107:91 108:78 109:1191 110:648 111:803 112:349
113:466 114:609 115:680 116:854 117:698 118:877
119:1222 120:347 121:654 122:1568 123:1022 124:1296
125:1296 128:212 129:176 130:158 131:628 132:145
133:21 134:215 135:54 136:211 137:143 138:285
139:119 140:464 141:252 142:371 143:402 144:490
145:64 146:462 147:219 148:614 149:266 150:157
151:194 152:447 153:172 154:6 155:389 156:205
157:329 158:154 159:421 160:332 161:205 162:371
163:164 164:507 165:367 166:543 167:444 168:814
169:144 170:880 171:87 172:4 173:1744 174:700
175:405 176:294 177:369 178:1094 180:1141 181:38
182:642 183:231 184:395 185:1 186:1408 187:781
188:960 189:1154 190:5187 192:5887 193:5057 194:3547
195:3107 196:1262 197:168 198:3567 199:4179 200:5441
201:1701 202:8253 203:8429 204:4238 205:2357 206:2580
207:2747 208:4017 209:3561 210:2641 211:1452 212:2014
213:1805 214:812 215:96 216:4903 217:1583 218:560
219:333 220:1216 221:502 222:296 223:268
End of report
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