Routing Table Report 08:00 +10GMT Fri 18 Nov, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 376298
Prefixes after maximum aggregation: 165009
Deaggregation factor: 2.28
Unique aggregates announced to Internet: 187621
Total ASes present in the Internet Routing Table: 37550
Prefixes per ASN: 10.02
Origin-only ASes present in the Internet Routing Table: 32381
Origin ASes announcing only one prefix: 15485
Transit ASes present in the Internet Routing Table: 5169
Transit-only ASes present in the Internet Routing Table: 132
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: 2471
Unregistered ASNs in the Routing Table: 968
Number of 32-bit ASNs allocated by the RIRs: 1963
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3802
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 84
Number of addresses announced to Internet: 2508480768
Equivalent to 149 /8s, 132 /16s and 97 /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: 157623
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90118
Total APNIC prefixes after maximum aggregation: 29852
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 87507
Unique aggregates announced from the APNIC address blocks: 38411
APNIC Region origin ASes present in the Internet Routing Table: 4563
APNIC Prefixes per ASN: 19.18
APNIC Region origin ASes announcing only one prefix: 1285
APNIC Region transit ASes present in the Internet Routing Table: 693
Average APNIC Region AS path length visible: 3.9
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: 629959168
Equivalent to 37 /8s, 140 /16s and 106 /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: 144743
Total ARIN prefixes after maximum aggregation: 74072
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 117131
Unique aggregates announced from the ARIN address blocks: 48550
ARIN Region origin ASes present in the Internet Routing Table: 14674
ARIN Prefixes per ASN: 7.98
ARIN Region origin ASes announcing only one prefix: 5621
ARIN Region transit ASes present in the Internet Routing Table: 1500
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: 803178240
Equivalent to 47 /8s, 223 /16s and 135 /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: 92648
Total RIPE prefixes after maximum aggregation: 51117
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 84889
Unique aggregates announced from the RIPE address blocks: 54399
RIPE Region origin ASes present in the Internet Routing Table: 16107
RIPE Prefixes per ASN: 5.27
RIPE Region origin ASes announcing only one prefix: 7979
RIPE Region transit ASes present in the Internet Routing Table: 2527
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: 492247808
Equivalent to 29 /8s, 87 /16s and 27 /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: 35700
Total LACNIC prefixes after maximum aggregation: 7849
LACNIC Deaggregation factor: 4.55
Prefixes being announced from the LACNIC address blocks: 35310
Unique aggregates announced from the LACNIC address blocks: 18611
LACNIC Region origin ASes present in the Internet Routing Table: 1533
LACNIC Prefixes per ASN: 23.03
LACNIC Region origin ASes announcing only one prefix: 443
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: 93086976
Equivalent to 5 /8s, 140 /16s and 101 /24s
Percentage of available LACNIC address space announced: 61.6
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: 8591
Total AfriNIC prefixes after maximum aggregation: 2046
AfriNIC Deaggregation factor: 4.20
Prefixes being announced from the AfriNIC address blocks: 6669
Unique aggregates announced from the AfriNIC address blocks: 2041
AfriNIC Region origin ASes present in the Internet Routing Table: 498
AfriNIC Prefixes per ASN: 13.39
AfriNIC Region origin ASes announcing only one prefix: 157
AfriNIC Region transit ASes present in the Internet Routing Table: 107
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: 27762432
Equivalent to 1 /8s, 167 /16s and 159 /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 1950 11101 661 Korea Telecom (KIX)
7545 1624 303 87 TPG Internet Pty Ltd
17974 1595 511 36 PT Telekomunikasi Indonesia
4755 1518 378 170 TATA Communications formerly
9829 1166 989 28 National Internet Backbone
9583 1094 80 494 Sify Limited
7552 987 1062 11 Vietel Corporation
4808 986 2001 281 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 3540 3814 220 BellSouth.net Inc.
7029 2953 1042 212 Windstream Communications Inc
18566 2093 382 176 Covad Communications Co.
1785 1851 680 121 PaeTec Communications, Inc.
4323 1613 1093 388 tw telecom holdings, inc.
20115 1595 1546 624 Charter Communications
22773 1498 2909 103 Cox Communications Inc.
30036 1423 256 668 Mediacom Communications Corp
19262 1387 4683 401 Verizon Online LLC
7018 1323 7063 869 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 1362 416 14 Corbina telecom
6830 645 1927 411 UPC Broadband
34984 599 112 187 BILISIM TELEKOM
20940 554 182 436 Akamai Technologies European
9116 541 326 31 Goldenlines main autonomous s
3320 511 8168 388 Deutsche Telekom AG
12479 483 596 9 France Telecom Espana SA
3292 482 2106 410 TDC Data Networks
8866 460 133 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 1706 316 157 Types of queries are: POCs, o
28573 1494 1044 70 Types of queries are: POCs, o
8151 1313 2951 342 Uninet S.A. de C.V.
7303 1238 751 173 Telecom Argentina S.A.
27947 588 72 86 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 774 146 33 LINKdotNET AS number
8452 685 446 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 196 28 61 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 3540 3814 220 BellSouth.net Inc.
7029 2953 1042 212 Windstream Communications Inc
18566 2093 382 176 Covad Communications Co.
4766 1950 11101 661 Korea Telecom (KIX)
1785 1851 680 121 PaeTec Communications, Inc.
10620 1706 316 157 Types of queries are: POCs, o
7545 1624 303 87 TPG Internet Pty Ltd
4323 1613 1093 388 tw telecom holdings, inc.
17974 1595 511 36 PT Telekomunikasi Indonesia
20115 1595 1546 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 2953 2741 Windstream Communications Inc
18566 2093 1917 Covad Communications Co.
1785 1851 1730 PaeTec Communications, Inc.
17974 1595 1559 PT Telekomunikasi Indonesia
10620 1706 1549 Types of queries are: POCs, o
7545 1624 1537 TPG Internet Pty Ltd
28573 1494 1424 Types of queries are: POCs, o
22773 1498 1395 Cox Communications Inc.
4755 1518 1348 TATA Communications formerly
8402 1362 1348 Corbina telecom
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
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV
62.61.221.0/24 24974 Tachyon Europe BV
64.21.192.0/20 11610 Internet Nebraska Corporation
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 /15:1420 /16:11969 /17:6065 /18:10082
/19:20103 /20:27636 /21:27767 /22:37549 /23:35099 /24:196426
/25:12 /26:21 /27:22 /28:155 /29:131 /30:63
/31:0 /32:131
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2566 2953 Windstream Communications Inc
6389 2181 3540 BellSouth.net Inc.
18566 2043 2093 Covad Communications Co.
10620 1601 1706 Types of queries are: POCs, o
30036 1383 1423 Mediacom Communications Corp
8402 1338 1362 Corbina telecom
11492 1117 1154 CABLE ONE, INC.
1785 1058 1851 PaeTec Communications, Inc.
7011 1050 1167 Frontier Communications of Am
22773 958 1498 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:411 2:451 4:15 5:1 6:3 8:356
12:1963 13:1 14:544 15:11 16:3 17:7
20:9 23:63 24:1681 27:1029 31:695 32:60
33:2 34:2 36:4 38:757 40:109 41:2693
42:61 44:3 46:1047 47:3 49:291 50:452
52:13 55:6 56:2 57:44 58:872 59:486
60:356 61:1038 62:1099 63:1960 64:4051 65:2298
66:4326 67:2014 68:1169 69:3146 70:902 71:389
72:1812 74:2641 75:428 76:320 77:891 78:869
79:488 80:1132 81:838 82:519 83:520 84:621
85:1156 86:412 87:910 88:355 89:1580 90:235
91:4265 92:539 93:1418 94:1310 95:1058 96:425
97:285 98:797 99:37 101:114 103:477 106:1
107:93 108:81 109:1185 110:646 111:800 112:351
113:479 114:580 115:682 116:857 117:694 118:877
119:1218 120:351 121:652 122:1569 123:1020 124:1296
125:1298 128:213 129:176 130:170 131:629 132:147
133:21 134:221 135:54 136:210 137:143 138:288
139:120 140:466 141:251 142:371 143:408 144:487
145:65 146:468 147:220 148:605 149:262 150:157
151:194 152:445 153:172 154:6 155:389 156:205
157:325 158:157 159:425 160:329 161:205 162:371
163:165 164:508 165:367 166:540 167:446 168:818
169:144 170:879 171:87 172:4 173:1744 174:593
175:406 176:287 177:388 178:1113 180:1139 181:39
182:644 183:231 184:395 185:1 186:1411 187:773
188:975 189:1158 190:5174 192:5896 193:5055 194:3547
195:3103 196:1261 197:167 198:3570 199:4176 200:5450
201:1702 202:8255 203:8433 204:4231 205:2363 206:2504
207:2745 208:4019 209:3551 210:2644 211:1454 212:2017
213:1811 214:814 215:97 216:4883 217:1609 218:562
219:331 220:1217 221:503 222:298 223:274
End of report
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