Routing Table Report 08:00 +10GMT Fri 02 Sep, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 363568
Prefixes after maximum aggregation: 165069
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 183016
Total ASes present in the Internet Routing Table: 37105
Prefixes per ASN: 9.80
Origin-only ASes present in the Internet Routing Table: 32011
Origin ASes announcing only one prefix: 15402
Transit ASes present in the Internet Routing Table: 5094
Transit-only ASes present in the Internet Routing Table: 128
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 36
Max AS path prepend of ASN (22394) 33
Prefixes from unregistered ASNs in the Routing Table: 2556
Unregistered ASNs in the Routing Table: 754
Number of 32-bit ASNs allocated by the RIRs: 1698
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3166
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 106
Number of addresses announced to Internet: 2487363584
Equivalent to 148 /8s, 66 /16s and 40 /24s
Percentage of available address space announced: 67.1
Percentage of allocated address space announced: 67.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.2
Total number of prefixes smaller than registry allocations: 150228
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 87976
Total APNIC prefixes after maximum aggregation: 29241
APNIC Deaggregation factor: 3.01
Prefixes being announced from the APNIC address blocks: 85444
Unique aggregates announced from the APNIC address blocks: 38005
APNIC Region origin ASes present in the Internet Routing Table: 4494
APNIC Prefixes per ASN: 19.01
APNIC Region origin ASes announcing only one prefix: 1258
APNIC Region transit ASes present in the Internet Routing Table: 679
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: 624028672
Equivalent to 37 /8s, 49 /16s and 236 /24s
Percentage of available APNIC address space announced: 79.1
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: 141490
Total ARIN prefixes after maximum aggregation: 72848
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113754
Unique aggregates announced from the ARIN address blocks: 47169
ARIN Region origin ASes present in the Internet Routing Table: 14545
ARIN Prefixes per ASN: 7.82
ARIN Region origin ASes announcing only one prefix: 5604
ARIN Region transit ASes present in the Internet Routing Table: 1466
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 36
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 804150272
Equivalent to 47 /8s, 238 /16s and 92 /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: 88309
Total RIPE prefixes after maximum aggregation: 49827
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 81421
Unique aggregates announced from the RIPE address blocks: 53637
RIPE Region origin ASes present in the Internet Routing Table: 15912
RIPE Prefixes per ASN: 5.12
RIPE Region origin ASes announcing only one prefix: 7937
RIPE Region transit ASes present in the Internet Routing Table: 2507
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 35
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 488315136
Equivalent to 29 /8s, 27 /16s and 25 /24s
Percentage of available RIPE address space announced: 78.7
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: 33629
Total LACNIC prefixes after maximum aggregation: 7595
LACNIC Deaggregation factor: 4.43
Prefixes being announced from the LACNIC address blocks: 33063
Unique aggregates announced from the LACNIC address blocks: 17437
LACNIC Region origin ASes present in the Internet Routing Table: 1499
LACNIC Prefixes per ASN: 22.06
LACNIC Region origin ASes announcing only one prefix: 449
LACNIC Region transit ASes present in the Internet Routing Table: 263
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 87588352
Equivalent to 5 /8s, 56 /16s and 126 /24s
Percentage of available LACNIC address space announced: 58.0
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: 8297
Total AfriNIC prefixes after maximum aggregation: 2066
AfriNIC Deaggregation factor: 4.02
Prefixes being announced from the AfriNIC address blocks: 6404
Unique aggregates announced from the AfriNIC address blocks: 1987
AfriNIC Region origin ASes present in the Internet Routing Table: 479
AfriNIC Prefixes per ASN: 13.37
AfriNIC Region origin ASes announcing only one prefix: 154
AfriNIC Region transit ASes present in the Internet Routing Table: 104
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: 26794752
Equivalent to 1 /8s, 152 /16s and 219 /24s
Percentage of available AfriNIC address space announced: 39.9
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 1942 11038 647 Korea Telecom (KIX)
17974 1638 516 31 PT Telekomunikasi Indonesia
7545 1573 301 82 TPG Internet Pty Ltd
4755 1528 374 165 TATA Communications formerly
24560 1195 337 187 Bharti Airtel Ltd., Telemedia
9829 1153 989 28 National Internet Backbone
9583 1073 79 503 Sify Limited
17488 1030 192 150 Hathway IP Over Cable Interne
7552 992 1062 11 Vietel Corporation
18101 951 118 139 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 3561 3817 226 BellSouth.net Inc.
18566 1911 364 236 Covad Communications Co.
1785 1824 680 122 PaeTec Communications, Inc.
4323 1624 1101 396 tw telecom holdings, inc.
7029 1615 1033 208 Windstream Communications Inc
20115 1587 1539 631 Charter Communications
22773 1450 2905 98 Cox Communications Inc.
19262 1392 4716 399 Verizon Online LLC
7018 1351 7085 887 AT&T Services, Inc.
2386 1223 515 881 AT&T Data Communications Serv
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
34984 541 107 182 BILISIM TELEKOM
9116 540 326 31 Goldenlines main autonomous s
6830 522 1811 321 UPC Broadband
20940 487 145 381 Akamai Technologies European
3292 470 2079 404 TDC Data Networks
12479 463 593 7 France Telecom Espana SA
8866 459 133 26 Bulgarian Telecommunication C
3320 429 8152 373 Deutsche Telekom AG
29049 424 31 55 AzerSat LLC.
8551 405 355 38 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 1628 298 154 Types of queries are: POCs, o
28573 1273 1003 71 Types of queries are: POCs, o
8151 1269 2761 346 Uninet S.A. de C.V.
7303 1049 578 164 Telecom Argentina S.A.
14420 715 57 88 CORPORACION NACIONAL DE TELEC
6503 579 450 69 Axtel, S.A.B. de C.V.
22047 579 322 17 Types of queries are: POCs, o
27947 549 56 77 Telconet S.A
3816 534 232 97 Types of queries are: POCs, o
7738 515 986 31 Telecomunicacoes da Bahia S.A
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 807 147 41 LINKdotNET AS number
8452 627 445 11 TEDATA
15475 512 74 8 Nile Online
36992 301 415 14 Etisalat MISR
3741 266 937 227 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
15706 219 32 6 Sudatel Internet Exchange Aut
33776 207 13 14 Starcomms Nigeria Limited
12258 195 28 62 Vodacom Internet Company
24835 181 70 12 RAYA Telecom - Egypt
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 3561 3817 226 BellSouth.net Inc.
23456 3166 750 1703 32-bit ASN transition
4766 1942 11038 647 Korea Telecom (KIX)
18566 1911 364 236 Covad Communications Co.
1785 1824 680 122 PaeTec Communications, Inc.
17974 1638 516 31 PT Telekomunikasi Indonesia
10620 1628 298 154 Types of queries are: POCs, o
4323 1624 1101 396 tw telecom holdings, inc.
7029 1615 1033 208 Windstream Communications Inc
20115 1587 1539 631 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
1785 1824 1702 PaeTec Communications, Inc.
18566 1911 1675 Covad Communications Co.
17974 1638 1607 PT Telekomunikasi Indonesia
7545 1573 1491 TPG Internet Pty Ltd
10620 1628 1474 Types of queries are: POCs, o
23456 3166 1463 32-bit ASN transition
7029 1615 1407 Windstream Communications Inc
4755 1528 1363 TATA Communications formerly
22773 1450 1352 Cox Communications Inc.
4766 1942 1295 Korea Telecom (KIX)
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.
26973 UNALLOCATED 12.39.152.0/24 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
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 65535 Internet Assigned Numbers Aut
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 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
46.18.104.0/21 23456 32-bit ASN transition
50.117.0.0/17 18779 Guru.com
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 /12:233
/13:461 /14:794 /15:1404 /16:11901 /17:5918 /18:9929
/19:19699 /20:26609 /21:26654 /22:35432 /23:34021 /24:189854
/25:12 /26:20 /27:23 /28:157 /29:115 /30:60
/31:0 /32:132
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2196 3561 BellSouth.net Inc.
18566 1867 1911 Covad Communications Co.
23456 1550 3166 32-bit ASN transition
10620 1523 1628 Types of queries are: POCs, o
7029 1298 1615 Windstream Communications Inc
11492 1107 1153 CABLE ONE, INC.
1785 1053 1824 PaeTec Communications, Inc.
7011 1031 1154 Frontier Communications of Am
22773 941 1450 Cox Communications Inc.
30036 926 954 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:362 2:46 4:15 5:1 6:3 8:343
12:1946 13:1 14:524 15:13 16:3 17:5
20:10 23:31 24:1675 27:926 31:515 32:59
33:3 34:2 36:4 38:729 40:107 41:2409
42:53 44:3 46:1070 47:3 49:222 50:413
52:13 54:2 55:4 56:2 57:34 58:820
59:488 60:374 61:1013 62:1097 63:1934 64:3980
65:2302 66:3924 67:1932 68:1104 69:3124 70:777
71:374 72:1858 74:2415 75:327 76:338 77:865
78:704 79:460 80:1116 81:832 82:499 83:480
84:683 85:1084 86:503 87:861 88:334 89:1537
90:224 91:4055 92:524 93:1140 94:1379 95:880
96:411 97:271 98:925 99:37 101:74 103:245
106:79 107:39 108:75 109:1019 110:632 111:741
112:300 113:405 114:553 115:685 116:976 117:660
118:845 119:1173 120:331 121:659 122:1609 123:986
124:1284 125:1268 128:210 129:171 130:160 131:577
132:110 133:21 134:206 135:53 136:211 137:132
138:293 139:114 140:469 141:286 142:368 143:424
144:484 145:60 146:457 147:223 148:615 149:249
150:146 151:190 152:439 153:179 154:5 155:398
156:198 157:323 158:141 159:383 160:318 161:198
162:332 163:157 164:513 165:364 166:537 167:435
168:742 169:146 170:845 171:84 172:1 173:1639
174:620 175:388 176:155 177:240 178:1013 180:1001
181:25 182:594 183:238 184:341 185:1 186:1390
187:684 188:935 189:885 190:5125 192:5877 193:4995
194:3519 195:3049 196:1232 197:144 198:3499 199:4042
200:5438 201:1483 202:8207 203:8383 204:4170 205:2302
206:2589 207:2765 208:4021 209:3406 210:2609 211:1452
212:2105 213:1764 214:756 215:76 216:4819 217:1619
218:539 219:339 220:1184 221:500 222:302 223:254
End of report
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