Routing Table Report 08:00 +10GMT Mon 03 Oct, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 369313
Prefixes after maximum aggregation: 166746
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 185104
Total ASes present in the Internet Routing Table: 37303
Prefixes per ASN: 9.90
Origin-only ASes present in the Internet Routing Table: 32208
Origin ASes announcing only one prefix: 15471
Transit ASes present in the Internet Routing Table: 5095
Transit-only ASes present in the Internet Routing Table: 125
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 31
Max AS path prepend of ASN (51310) 23
Prefixes from unregistered ASNs in the Routing Table: 2262
Unregistered ASNs in the Routing Table: 882
Number of 32-bit ASNs allocated by the RIRs: 1810
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3365
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 93
Number of addresses announced to Internet: 2498731520
Equivalent to 148 /8s, 239 /16s and 158 /24s
Percentage of available address space announced: 67.4
Percentage of allocated address space announced: 67.4
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: 153717
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 88747
Total APNIC prefixes after maximum aggregation: 29486
APNIC Deaggregation factor: 3.01
Prefixes being announced from the APNIC address blocks: 86166
Unique aggregates announced from the APNIC address blocks: 37953
APNIC Region origin ASes present in the Internet Routing Table: 4518
APNIC Prefixes per ASN: 19.07
APNIC Region origin ASes announcing only one prefix: 1267
APNIC Region transit ASes present in the Internet Routing Table: 683
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: 627759360
Equivalent to 37 /8s, 106 /16s and 217 /24s
Percentage of available APNIC address space announced: 79.6
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: 142794
Total ARIN prefixes after maximum aggregation: 73477
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 115228
Unique aggregates announced from the ARIN address blocks: 48049
ARIN Region origin ASes present in the Internet Routing Table: 14619
ARIN Prefixes per ASN: 7.88
ARIN Region origin ASes announcing only one prefix: 5639
ARIN Region transit ASes present in the Internet Routing Table: 1491
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: 804652288
Equivalent to 47 /8s, 246 /16s and 5 /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: 90629
Total RIPE prefixes after maximum aggregation: 50369
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 83304
Unique aggregates announced from the RIPE address blocks: 54104
RIPE Region origin ASes present in the Internet Routing Table: 15994
RIPE Prefixes per ASN: 5.21
RIPE Region origin ASes announcing only one prefix: 7961
RIPE Region transit ASes present in the Internet Routing Table: 2494
Average RIPE Region AS path length visible: 3.4
Max RIPE Region AS path length visible: 31
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 490035200
Equivalent to 29 /8s, 53 /16s and 88 /24s
Percentage of available RIPE address space announced: 78.9
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: 34512
Total LACNIC prefixes after maximum aggregation: 7721
LACNIC Deaggregation factor: 4.47
Prefixes being announced from the LACNIC address blocks: 34015
Unique aggregates announced from the LACNIC address blocks: 18008
LACNIC Region origin ASes present in the Internet Routing Table: 1519
LACNIC Prefixes per ASN: 22.39
LACNIC Region origin ASes announcing only one prefix: 449
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: 89644544
Equivalent to 5 /8s, 87 /16s and 222 /24s
Percentage of available LACNIC address space announced: 59.4
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: 8572
Total AfriNIC prefixes after maximum aggregation: 2000
AfriNIC Deaggregation factor: 4.29
Prefixes being announced from the AfriNIC address blocks: 6634
Unique aggregates announced from the AfriNIC address blocks: 1932
AfriNIC Region origin ASes present in the Internet Routing Table: 481
AfriNIC Prefixes per ASN: 13.79
AfriNIC Region origin ASes announcing only one prefix: 155
AfriNIC Region transit ASes present in the Internet Routing Table: 101
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: 27670016
Equivalent to 1 /8s, 166 /16s and 54 /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 1945 11040 656 Korea Telecom (KIX)
7545 1604 303 86 TPG Internet Pty Ltd
4755 1535 638 175 TATA Communications formerly
17974 1517 519 33 PT Telekomunikasi Indonesia
24560 1177 345 208 Bharti Airtel Ltd., Telemedia
9829 1158 989 28 National Internet Backbone
9583 1087 80 503 Sify Limited
4808 959 2003 270 CNCGROUP IP network China169
18101 954 165 143 Reliance Infocom Ltd Internet
7552 948 1062 11 Vietel Corporation
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 3557 3817 226 BellSouth.net Inc.
18566 1913 365 237 Covad Communications Co.
7029 1863 1033 207 Windstream Communications Inc
1785 1833 681 124 PaeTec Communications, Inc.
4323 1628 1098 392 tw telecom holdings, inc.
20115 1594 1542 635 Charter Communications
22773 1456 2907 100 Cox Communications Inc.
19262 1394 4728 400 Verizon Online LLC
30036 1389 252 667 Mediacom Communications Corp
7018 1351 7084 883 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 1397 352 13 Corbina telecom
34984 576 108 179 BILISIM TELEKOM
6830 556 1873 333 UPC Broadband
9116 540 326 31 Goldenlines main autonomous s
20940 531 178 409 Akamai Technologies European
3320 500 8169 383 Deutsche Telekom AG
3292 479 2082 409 TDC Data Networks
12479 475 593 7 France Telecom Espana SA
8866 458 133 26 Bulgarian Telecommunication C
29049 423 31 55 AzerSat LLC.
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 1681 310 155 Types of queries are: POCs, o
28573 1359 1013 70 Types of queries are: POCs, o
8151 1267 2804 340 Uninet S.A. de C.V.
7303 1163 683 175 Telecom Argentina S.A.
14420 742 58 87 CORPORACION NACIONAL DE TELEC
22047 581 322 17 Types of queries are: POCs, o
27947 564 72 79 Telconet S.A
6503 562 450 70 Axtel, S.A.B. de C.V.
3816 537 232 99 Types of queries are: POCs, o
11172 521 101 95 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 813 147 35 LINKdotNET AS number
8452 727 445 11 TEDATA
15475 450 74 8 Nile Online
36992 289 415 14 Etisalat MISR
3741 276 938 229 The Internet Solution
15706 244 32 6 Sudatel Internet Exchange Aut
6713 242 519 14 Itissalat Al-MAGHRIB
33776 239 13 8 Starcomms Nigeria Limited
12258 199 28 59 Vodacom Internet Company
29571 192 17 11 Ci Telecom Autonomous system
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 3557 3817 226 BellSouth.net Inc.
4766 1945 11040 656 Korea Telecom (KIX)
18566 1913 365 237 Covad Communications Co.
7029 1863 1033 207 Windstream Communications Inc
1785 1833 681 124 PaeTec Communications, Inc.
10620 1681 310 155 Types of queries are: POCs, o
4323 1628 1098 392 tw telecom holdings, inc.
7545 1604 303 86 TPG Internet Pty Ltd
20115 1594 1542 635 Charter Communications
4755 1535 638 175 TATA Communications formerly
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 1833 1709 PaeTec Communications, Inc.
18566 1913 1676 Covad Communications Co.
7029 1863 1656 Windstream Communications Inc
10620 1681 1526 Types of queries are: POCs, o
7545 1604 1518 TPG Internet Pty Ltd
17974 1517 1484 PT Telekomunikasi Indonesia
8402 1397 1384 Corbina telecom
4755 1535 1360 TATA Communications formerly
22773 1456 1356 Cox Communications Inc.
4766 1945 1289 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.
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 /12:236
/13:464 /14:802 /15:1419 /16:11957 /17:5970 /18:9986
/19:19926 /20:27013 /21:27071 /22:36381 /23:34474 /24:192959
/25:12 /26:20 /27:24 /28:154 /29:122 /30:59
/31:0 /32:124
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2193 3557 BellSouth.net Inc.
18566 1869 1913 Covad Communications Co.
10620 1576 1681 Types of queries are: POCs, o
7029 1542 1863 Windstream Communications Inc
8402 1374 1397 Corbina telecom
30036 1351 1389 Mediacom Communications Corp
11492 1113 1150 CABLE ONE, INC.
1785 1054 1833 PaeTec Communications, Inc.
7011 1052 1173 Frontier Communications of Am
22773 945 1456 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:378 2:471 4:15 5:1 6:3 8:351
12:1951 13:1 14:519 15:13 16:3 17:7
20:10 23:36 24:1683 27:958 31:571 32:60
33:4 34:2 36:4 38:743 40:108 41:2690
42:48 44:3 46:989 47:3 49:263 50:431
52:13 55:3 56:2 57:37 58:832 59:486
60:362 61:1018 62:1101 63:1927 64:4026 65:2304
66:3980 67:1952 68:1095 69:3200 70:825 71:377
72:1847 74:2463 75:355 76:340 77:882 78:875
79:488 80:1127 81:851 82:508 83:605 84:623
85:1115 86:413 87:882 88:353 89:1604 90:268
91:4155 92:531 93:1370 94:1319 95:981 96:435
97:277 98:908 99:37 101:85 103:331 106:70
107:59 108:47 109:1032 110:628 111:791 112:313
113:430 114:541 115:667 116:850 117:676 118:850
119:1185 120:332 121:660 122:1593 123:1017 124:1286
125:1328 128:206 129:172 130:159 131:577 132:104
133:21 134:206 135:54 136:212 137:136 138:288
139:119 140:473 141:291 142:370 143:409 144:482
145:63 146:465 147:215 148:618 149:263 150:146
151:193 152:444 153:177 154:5 155:386 156:204
157:330 158:150 159:397 160:322 161:196 162:333
163:168 164:507 165:373 166:536 167:434 168:734
169:145 170:865 171:85 172:1 173:1649 174:650
175:413 176:262 177:290 178:1045 180:1001 181:37
182:616 183:211 184:381 185:1 186:1493 187:677
188:924 189:874 190:5168 192:5873 193:5011 194:3526
195:3080 196:1255 197:173 198:3570 199:4090 200:5450
201:1640 202:8281 203:8344 204:4188 205:2336 206:2587
207:2756 208:4026 209:3441 210:2623 211:1455 212:2059
213:1776 214:782 215:90 216:4869 217:1603 218:551
219:333 220:1186 221:486 222:293 223:258
End of report
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