Routing Table Report 08:00 +10GMT Mon 24 Oct, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 374396
Prefixes after maximum aggregation: 167950
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 185739
Total ASes present in the Internet Routing Table: 37463
Prefixes per ASN: 9.99
Origin-only ASes present in the Internet Routing Table: 32312
Origin ASes announcing only one prefix: 15534
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: 27
Max AS path prepend of ASN (51310) 25
Prefixes from unregistered ASNs in the Routing Table: 2238
Unregistered ASNs in the Routing Table: 894
Number of 32-bit ASNs allocated by the RIRs: 1888
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3534
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 87
Number of addresses announced to Internet: 2504200192
Equivalent to 149 /8s, 67 /16s and 16 /24s
Percentage of available address space announced: 67.6
Percentage of allocated address space announced: 67.6
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.5
Total number of prefixes smaller than registry allocations: 156941
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89383
Total APNIC prefixes after maximum aggregation: 29628
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 86800
Unique aggregates announced from the APNIC address blocks: 37990
APNIC Region origin ASes present in the Internet Routing Table: 4540
APNIC Prefixes per ASN: 19.12
APNIC Region origin ASes announcing only one prefix: 1281
APNIC Region transit ASes present in the Internet Routing Table: 691
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: 628640000
Equivalent to 37 /8s, 120 /16s and 73 /24s
Percentage of available APNIC address space announced: 79.7
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: 144234
Total ARIN prefixes after maximum aggregation: 73959
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 116477
Unique aggregates announced from the ARIN address blocks: 48228
ARIN Region origin ASes present in the Internet Routing Table: 14668
ARIN Prefixes per ASN: 7.94
ARIN Region origin ASes announcing only one prefix: 5656
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: 804778752
Equivalent to 47 /8s, 247 /16s and 243 /24s
Percentage of available ARIN address space announced: 64.0
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: 93316
Total RIPE prefixes after maximum aggregation: 50689
RIPE Deaggregation factor: 1.84
Prefixes being announced from the RIPE address blocks: 85925
Unique aggregates announced from the RIPE address blocks: 54155
RIPE Region origin ASes present in the Internet Routing Table: 16055
RIPE Prefixes per ASN: 5.35
RIPE Region origin ASes announcing only one prefix: 7990
RIPE Region transit ASes present in the Internet Routing Table: 2523
Average RIPE Region AS path length visible: 3.4
Max RIPE Region AS path length visible: 27
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 491105536
Equivalent to 29 /8s, 69 /16s and 173 /24s
Percentage of available RIPE address space announced: 79.1
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: 34695
Total LACNIC prefixes after maximum aggregation: 7796
LACNIC Deaggregation factor: 4.45
Prefixes being announced from the LACNIC address blocks: 34262
Unique aggregates announced from the LACNIC address blocks: 18081
LACNIC Region origin ASes present in the Internet Routing Table: 1529
LACNIC Prefixes per ASN: 22.41
LACNIC Region origin ASes announcing only one prefix: 447
LACNIC Region transit ASes present in the Internet Routing Table: 265
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: 91606272
Equivalent to 5 /8s, 117 /16s and 205 /24s
Percentage of available LACNIC address space announced: 60.7
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: 8549
Total AfriNIC prefixes after maximum aggregation: 2012
AfriNIC Deaggregation factor: 4.25
Prefixes being announced from the AfriNIC address blocks: 6645
Unique aggregates announced from the AfriNIC address blocks: 1984
AfriNIC Region origin ASes present in the Internet Routing Table: 496
AfriNIC Prefixes per ASN: 13.40
AfriNIC Region origin ASes announcing only one prefix: 160
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: 27856384
Equivalent to 1 /8s, 169 /16s and 14 /24s
Percentage of available AfriNIC address space announced: 41.5
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 1937 11087 656 Korea Telecom (KIX)
17974 1627 512 38 PT Telekomunikasi Indonesia
7545 1608 303 86 TPG Internet Pty Ltd
4755 1533 377 173 TATA Communications formerly
9829 1166 989 28 National Internet Backbone
9583 1089 80 498 Sify Limited
7552 983 1062 11 Vietel Corporation
4808 968 2007 274 CNCGROUP IP network China169
24560 966 343 220 Bharti Airtel Ltd., Telemedia
18101 954 166 149 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 3546 3815 221 BellSouth.net Inc.
7029 2319 1042 210 Windstream Communications Inc
18566 2097 382 176 Covad Communications Co.
1785 1843 680 122 PaeTec Communications, Inc.
4323 1628 1100 394 tw telecom holdings, inc.
20115 1593 1546 620 Charter Communications
22773 1461 2907 100 Cox Communications Inc.
30036 1414 254 672 Mediacom Communications Corp
19262 1395 4728 400 Verizon Online LLC
7018 1328 7063 871 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
3352 2203 2317 51 Internet Access Network of TD
8402 1487 352 13 Corbina telecom
6830 652 1927 415 UPC Broadband
34984 583 108 179 BILISIM TELEKOM
20940 549 182 423 Akamai Technologies European
9116 540 326 31 Goldenlines main autonomous s
3320 504 8169 384 Deutsche Telekom AG
3292 483 2080 410 TDC Data Networks
12479 479 593 7 France Telecom Espana SA
8866 459 133 26 Bulgarian Telecommunication C
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 1694 313 155 Types of queries are: POCs, o
28573 1425 1032 69 Types of queries are: POCs, o
8151 1286 2894 346 Uninet S.A. de C.V.
7303 1229 747 177 Telecom Argentina S.A.
22047 580 322 17 Types of queries are: POCs, o
27947 577 72 85 Telconet S.A
6503 558 450 70 Axtel, S.A.B. de C.V.
7738 552 1050 31 Telecomunicacoes da Bahia S.A
3816 540 233 96 Types of queries are: POCs, o
11172 521 101 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 800 146 33 LINKdotNET AS number
8452 651 446 12 TEDATA
15475 455 74 8 Nile Online
36992 299 415 20 Etisalat MISR
3741 280 939 229 The Internet Solution
6713 244 519 14 Itissalat Al-MAGHRIB
15706 240 32 6 Sudatel Internet Exchange Aut
29571 218 17 13 Ci Telecom Autonomous system
33776 208 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 3546 3815 221 BellSouth.net Inc.
7029 2319 1042 210 Windstream Communications Inc
3352 2203 2317 51 Internet Access Network of TD
18566 2097 382 176 Covad Communications Co.
4766 1937 11087 656 Korea Telecom (KIX)
1785 1843 680 122 PaeTec Communications, Inc.
10620 1694 313 155 Types of queries are: POCs, o
4323 1628 1100 394 tw telecom holdings, inc.
17974 1627 512 38 PT Telekomunikasi Indonesia
7545 1608 303 86 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3352 2203 2152 Internet Access Network of TD
7029 2319 2109 Windstream Communications Inc
18566 2097 1921 Covad Communications Co.
1785 1843 1721 PaeTec Communications, Inc.
17974 1627 1589 PT Telekomunikasi Indonesia
10620 1694 1539 Types of queries are: POCs, o
7545 1608 1522 TPG Internet Pty Ltd
8402 1487 1474 Corbina telecom
22773 1461 1361 Cox Communications Inc.
4755 1533 1360 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
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 36938 >>UNKNOWN<<
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
/13:464 /14:805 /15:1417 /16:11965 /17:6016 /18:9990
/19:20066 /20:27430 /21:27546 /22:36955 /23:35533 /24:195312
/25:12 /26:20 /27:22 /28:154 /29:124 /30:61
/31:0 /32:127
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2185 3546 BellSouth.net Inc.
18566 2047 2097 Covad Communications Co.
7029 1975 2319 Windstream Communications Inc
3352 1751 2203 Internet Access Network of TD
10620 1589 1694 Types of queries are: POCs, o
8402 1463 1487 Corbina telecom
30036 1375 1414 Mediacom Communications Corp
11492 1118 1155 CABLE ONE, INC.
1785 1057 1843 PaeTec Communications, Inc.
7011 1048 1166 Frontier Communications of Am
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:406 2:487 4:15 5:1 6:3 8:357
12:1955 13:1 14:528 15:11 16:3 17:7
20:9 23:58 24:1673 27:960 31:602 32:60
33:4 34:2 36:4 38:750 40:110 41:2689
42:51 44:3 46:997 47:3 49:294 50:440
52:13 55:6 56:2 57:36 58:834 59:491
60:359 61:1025 62:1084 63:1954 64:4014 65:2302
66:4271 67:1981 68:1147 69:3186 70:887 71:379
72:1804 74:2567 75:388 76:318 77:885 78:863
79:479 80:1588 81:939 82:504 83:576 84:622
85:1118 86:411 87:894 88:420 89:1598 90:237
91:4211 92:531 93:1538 94:1310 95:1062 96:431
97:284 98:920 99:37 101:92 103:383 106:70
107:73 108:72 109:1047 110:646 111:785 112:322
113:467 114:590 115:676 116:865 117:689 118:834
119:1197 120:337 121:680 122:1560 123:1008 124:1295
125:1305 128:209 129:176 130:159 131:589 132:136
133:21 134:211 135:54 136:211 137:137 138:284
139:119 140:460 141:296 142:371 143:429 144:489
145:63 146:470 147:215 148:618 149:266 150:159
151:192 152:445 153:178 154:6 155:388 156:205
157:330 158:153 159:410 160:324 161:204 162:337
163:163 164:505 165:368 166:536 167:438 168:734
169:144 170:872 171:85 172:4 173:1704 174:685
175:414 176:277 177:346 178:1063 180:1082 181:36
182:641 183:209 184:392 185:1 186:1291 187:693
188:937 189:873 190:5112 192:5879 193:5040 194:3559
195:3105 196:1230 197:165 198:3570 199:4133 200:5450
201:1679 202:8274 203:8367 204:4221 205:2341 206:2575
207:2761 208:4014 209:3544 210:2605 211:1453 212:2094
213:1801 214:777 215:95 216:4897 217:1617 218:557
219:337 220:1205 221:498 222:296 223:272
End of report
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