Routing Table Report 08:00 +10GMT Tue 22 Nov, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 376931
Prefixes after maximum aggregation: 165038
Deaggregation factor: 2.28
Unique aggregates announced to Internet: 187838
Total ASes present in the Internet Routing Table: 37560
Prefixes per ASN: 10.04
Origin-only ASes present in the Internet Routing Table: 32399
Origin ASes announcing only one prefix: 15482
Transit ASes present in the Internet Routing Table: 5161
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: 2482
Unregistered ASNs in the Routing Table: 965
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: 3836
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 83
Number of addresses announced to Internet: 2508789760
Equivalent to 149 /8s, 137 /16s and 24 /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: 157965
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90192
Total APNIC prefixes after maximum aggregation: 29867
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 87596
Unique aggregates announced from the APNIC address blocks: 38590
APNIC Region origin ASes present in the Internet Routing Table: 4564
APNIC Prefixes per ASN: 19.19
APNIC Region origin ASes announcing only one prefix: 1281
APNIC Region transit ASes present in the Internet Routing Table: 698
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: 629868800
Equivalent to 37 /8s, 139 /16s and 9 /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: 144726
Total ARIN prefixes after maximum aggregation: 74033
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 117212
Unique aggregates announced from the ARIN address blocks: 48570
ARIN Region origin ASes present in the Internet Routing Table: 14674
ARIN Prefixes per ASN: 7.99
ARIN Region origin ASes announcing only one prefix: 5617
ARIN Region transit ASes present in the Internet Routing Table: 1499
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: 803281664
Equivalent to 47 /8s, 225 /16s and 27 /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: 93046
Total RIPE prefixes after maximum aggregation: 51155
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 85230
Unique aggregates announced from the RIPE address blocks: 54415
RIPE Region origin ASes present in the Internet Routing Table: 16117
RIPE Prefixes per ASN: 5.29
RIPE Region origin ASes announcing only one prefix: 7983
RIPE Region transit ASes present in the Internet Routing Table: 2520
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: 492541952
Equivalent to 29 /8s, 91 /16s and 152 /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: 35798
Total LACNIC prefixes after maximum aggregation: 7863
LACNIC Deaggregation factor: 4.55
Prefixes being announced from the LACNIC address blocks: 35397
Unique aggregates announced from the LACNIC address blocks: 18654
LACNIC Region origin ASes present in the Internet Routing Table: 1534
LACNIC Prefixes per ASN: 23.07
LACNIC Region origin ASes announcing only one prefix: 444
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: 93079296
Equivalent to 5 /8s, 140 /16s and 71 /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: 8636
Total AfriNIC prefixes after maximum aggregation: 2047
AfriNIC Deaggregation factor: 4.22
Prefixes being announced from the AfriNIC address blocks: 6699
Unique aggregates announced from the AfriNIC address blocks: 2039
AfriNIC Region origin ASes present in the Internet Routing Table: 502
AfriNIC Prefixes per ASN: 13.34
AfriNIC Region origin ASes announcing only one prefix: 157
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: 27779328
Equivalent to 1 /8s, 167 /16s and 225 /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 1954 11102 665 Korea Telecom (KIX)
7545 1624 303 87 TPG Internet Pty Ltd
17974 1573 511 36 PT Telekomunikasi Indonesia
4755 1504 376 168 TATA Communications formerly
9829 1165 989 28 National Internet Backbone
9583 1094 80 494 Sify Limited
7552 983 1062 11 Vietel Corporation
4808 977 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 1613 1094 390 tw telecom holdings, inc.
20115 1597 1546 624 Charter Communications
22773 1500 2909 104 Cox Communications Inc.
30036 1431 257 672 Mediacom Communications Corp
19262 1387 4683 401 Verizon Online LLC
7018 1318 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 1595 416 14 Corbina telecom
6830 645 1927 411 UPC Broadband
34984 603 114 188 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 483 596 9 France Telecom Espana SA
3292 482 2106 410 TDC Data Networks
8866 461 133 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 1499 1045 71 Types of queries are: POCs, o
8151 1313 2953 340 Uninet S.A. de C.V.
7303 1238 751 173 Telecom Argentina S.A.
27947 597 72 87 Telconet S.A
22047 581 322 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 543 235 97 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 663 446 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 217 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 1954 11102 665 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 1613 1094 390 tw telecom holdings, inc.
20115 1597 1546 624 Charter Communications
8402 1595 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 1595 1581 Corbina telecom
7545 1624 1537 TPG Internet Pty Ltd
17974 1573 1537 PT Telekomunikasi Indonesia
10620 1695 1519 Types of queries are: POCs, o
28573 1499 1428 Types of queries are: POCs, o
22773 1500 1396 Cox Communications Inc.
4755 1504 1336 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 /16:11978 /17:6065 /18:10086
/19:20107 /20:27654 /21:27811 /22:37626 /23:35203 /24:196795
/25:11 /26:21 /27:20 /28:154 /29:131 /30:63
/31:0 /32:136
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 1571 1595 Corbina telecom
30036 1391 1431 Mediacom Communications Corp
11492 1116 1153 CABLE ONE, INC.
1785 1058 1851 PaeTec Communications, Inc.
7011 1050 1167 Frontier Communications of Am
22773 960 1500 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:416 2:486 4:15 5:1 6:3 8:358
12:1958 13:1 14:544 15:11 16:3 17:7
20:9 23:70 24:1684 27:1023 31:704 32:60
33:2 34:2 36:4 38:761 40:109 41:2711
42:64 44:3 46:1061 47:3 49:292 50:454
52:13 55:7 56:2 57:45 58:871 59:481
60:356 61:1051 62:1098 63:1960 64:4052 65:2293
66:4329 67:2014 68:1166 69:3146 70:903 71:383
72:1819 74:2642 75:432 76:320 77:892 78:893
79:456 80:1137 81:839 82:518 83:524 84:621
85:1151 86:411 87:909 88:354 89:1601 90:235
91:4283 92:538 93:1441 94:1313 95:1121 96:423
97:285 98:761 99:37 101:117 103:496 106:1
107:95 108:83 109:1191 110:651 111:800 112:355
113:475 114:612 115:685 116:855 117:692 118:882
119:1206 120:316 121:652 122:1563 123:1020 124:1294
125:1300 128:261 129:176 130:170 131:629 132:147
133:21 134:221 135:54 136:209 137:143 138:285
139:120 140:465 141:249 142:369 143:403 144:495
145:65 146:468 147:218 148:611 149:267 150:157
151:191 152:446 153:172 154:6 155:390 156:205
157:326 158:156 159:427 160:332 161:204 162:368
163:165 164:514 165:366 166:540 167:448 168:820
169:145 170:823 171:87 172:4 173:1749 174:577
175:408 176:324 177:391 178:1119 180:1171 181:39
182:649 183:235 184:396 185:1 186:1417 187:776
188:978 189:1159 190:5185 192:5883 193:5053 194:3551
195:3110 196:1263 197:167 198:3562 199:4176 200:5453
201:1705 202:8265 203:8436 204:4228 205:2370 206:2568
207:2762 208:4015 209:3552 210:2651 211:1441 212:2032
213:1813 214:784 215:96 216:4888 217:1607 218:549
219:333 220:1215 221:493 222:298 223:278
End of report
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