Routing Table Report 08:00 +10GMT Thu 13 Oct, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 371126
Prefixes after maximum aggregation: 167345
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 185446
Total ASes present in the Internet Routing Table: 37370
Prefixes per ASN: 9.93
Origin-only ASes present in the Internet Routing Table: 32244
Origin ASes announcing only one prefix: 15490
Transit ASes present in the Internet Routing Table: 5126
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: 27
Max AS path prepend of ASN (51310) 25
Prefixes from unregistered ASNs in the Routing Table: 2178
Unregistered ASNs in the Routing Table: 856
Number of 32-bit ASNs allocated by the RIRs: 1847
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3422
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 89
Number of addresses announced to Internet: 2500696832
Equivalent to 149 /8s, 13 /16s and 155 /24s
Percentage of available address space announced: 67.5
Percentage of allocated address space announced: 67.5
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: 154543
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89354
Total APNIC prefixes after maximum aggregation: 29593
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 86760
Unique aggregates announced from the APNIC address blocks: 37993
APNIC Region origin ASes present in the Internet Routing Table: 4533
APNIC Prefixes per ASN: 19.14
APNIC Region origin ASes announcing only one prefix: 1273
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: 628162560
Equivalent to 37 /8s, 113 /16s and 0 /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: 143191
Total ARIN prefixes after maximum aggregation: 73653
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 115626
Unique aggregates announced from the ARIN address blocks: 48099
ARIN Region origin ASes present in the Internet Routing Table: 14646
ARIN Prefixes per ASN: 7.89
ARIN Region origin ASes announcing only one prefix: 5648
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: 804702720
Equivalent to 47 /8s, 246 /16s and 202 /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: 90780
Total RIPE prefixes after maximum aggregation: 50534
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 83368
Unique aggregates announced from the RIPE address blocks: 54230
RIPE Region origin ASes present in the Internet Routing Table: 16005
RIPE Prefixes per ASN: 5.21
RIPE Region origin ASes announcing only one prefix: 7964
RIPE Region transit ASes present in the Internet Routing Table: 2505
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: 490629376
Equivalent to 29 /8s, 62 /16s and 105 /24s
Percentage of available RIPE address space announced: 79.0
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: 35352
Total LACNIC prefixes after maximum aggregation: 7760
LACNIC Deaggregation factor: 4.56
Prefixes being announced from the LACNIC address blocks: 34871
Unique aggregates announced from the LACNIC address blocks: 17974
LACNIC Region origin ASes present in the Internet Routing Table: 1526
LACNIC Prefixes per ASN: 22.85
LACNIC Region origin ASes announcing only one prefix: 451
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: 90678528
Equivalent to 5 /8s, 103 /16s and 165 /24s
Percentage of available LACNIC address space announced: 60.1
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: 8335
Total AfriNIC prefixes after maximum aggregation: 2017
AfriNIC Deaggregation factor: 4.13
Prefixes being announced from the AfriNIC address blocks: 6412
Unique aggregates announced from the AfriNIC address blocks: 1963
AfriNIC Region origin ASes present in the Internet Routing Table: 488
AfriNIC Prefixes per ASN: 13.14
AfriNIC Region origin ASes announcing only one prefix: 154
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: 27546624
Equivalent to 1 /8s, 164 /16s and 84 /24s
Percentage of available AfriNIC address space announced: 41.0
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 1932 11055 653 Korea Telecom (KIX)
17974 1653 512 38 PT Telekomunikasi Indonesia
7545 1609 303 87 TPG Internet Pty Ltd
4755 1531 379 173 TATA Communications formerly
9829 1165 989 28 National Internet Backbone
24560 1100 342 225 Bharti Airtel Ltd., Telemedia
9583 1087 80 503 Sify Limited
7552 990 1062 11 Vietel Corporation
4808 966 2007 274 CNCGROUP IP network China169
18101 954 165 143 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 3551 3815 222 BellSouth.net Inc.
18566 1956 368 225 Covad Communications Co.
7029 1902 1042 210 Windstream Communications Inc
1785 1839 680 121 PaeTec Communications, Inc.
4323 1630 1099 393 tw telecom holdings, inc.
20115 1590 1541 635 Charter Communications
22773 1459 2907 100 Cox Communications Inc.
19262 1395 4728 400 Verizon Online LLC
30036 1384 250 675 Mediacom Communications Corp
7018 1346 7067 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 1465 352 13 Corbina telecom
6830 652 1927 415 UPC Broadband
34984 579 108 179 BILISIM TELEKOM
20940 548 185 422 Akamai Technologies European
9116 540 326 31 Goldenlines main autonomous s
3320 503 8169 385 Deutsche Telekom AG
3292 484 2082 410 TDC Data Networks
12479 482 593 7 France Telecom Espana SA
8866 459 133 26 Bulgarian Telecommunication C
29049 424 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 1680 310 154 Types of queries are: POCs, o
28573 1369 1015 68 Types of queries are: POCs, o
8151 1272 2824 342 Uninet S.A. de C.V.
7303 1164 683 175 Telecom Argentina S.A.
27925 714 98 11 Entel PCS Telecomunicaciones
14420 636 59 87 CORPORACION NACIONAL DE TELEC
22047 579 322 17 Types of queries are: POCs, o
27947 566 72 79 Telconet S.A
6503 561 450 70 Axtel, S.A.B. de C.V.
7738 553 1050 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 788 146 33 LINKdotNET AS number
8452 504 446 12 TEDATA
15475 444 74 8 Nile Online
36992 298 415 19 Etisalat MISR
3741 278 938 230 The Internet Solution
15706 244 32 6 Sudatel Internet Exchange Aut
6713 242 519 14 Itissalat Al-MAGHRIB
29571 217 17 13 Ci Telecom Autonomous system
33776 207 13 14 Starcomms Nigeria Limited
12258 199 28 59 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 3551 3815 222 BellSouth.net Inc.
18566 1956 368 225 Covad Communications Co.
4766 1932 11055 653 Korea Telecom (KIX)
7029 1902 1042 210 Windstream Communications Inc
1785 1839 680 121 PaeTec Communications, Inc.
10620 1680 310 154 Types of queries are: POCs, o
17974 1653 512 38 PT Telekomunikasi Indonesia
4323 1630 1099 393 tw telecom holdings, inc.
7545 1609 303 87 TPG Internet Pty Ltd
20115 1590 1541 635 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
18566 1956 1731 Covad Communications Co.
1785 1839 1718 PaeTec Communications, Inc.
7029 1902 1692 Windstream Communications Inc
17974 1653 1615 PT Telekomunikasi Indonesia
10620 1680 1526 Types of queries are: POCs, o
7545 1609 1522 TPG Internet Pty Ltd
8402 1465 1452 Corbina telecom
22773 1459 1359 Cox Communications Inc.
4755 1531 1358 TATA Communications formerly
28573 1369 1301 Types of queries are: POCs, o
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 /14:804 /15:1420 /16:11953 /17:5998 /18:10000
/19:19998 /20:27190 /21:27214 /22:36461 /23:34541 /24:194186
/25:12 /26:20 /27:22 /28:153 /29:127 /30:59
/31:0 /32:128
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2189 3551 BellSouth.net Inc.
18566 1913 1956 Covad Communications Co.
7029 1579 1902 Windstream Communications Inc
10620 1575 1680 Types of queries are: POCs, o
8402 1442 1465 Corbina telecom
30036 1346 1384 Mediacom Communications Corp
11492 1115 1152 CABLE ONE, INC.
1785 1056 1839 PaeTec Communications, Inc.
7011 1048 1166 Frontier Communications of Am
22773 947 1459 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:389 2:481 4:15 5:1 6:3 8:355
12:1949 13:1 14:529 15:11 16:3 17:7
20:9 23:57 24:1679 27:960 31:578 32:60
33:4 34:2 36:4 38:747 40:108 41:2521
42:50 44:3 46:987 47:3 49:269 50:445
52:13 55:5 56:2 57:36 58:842 59:487
60:360 61:1015 62:1093 63:1927 64:4012 65:2288
66:4042 67:1962 68:1099 69:3191 70:833 71:377
72:1858 74:2507 75:361 76:341 77:883 78:867
79:481 80:1124 81:825 82:506 83:538 84:638
85:1118 86:405 87:874 88:355 89:1600 90:268
91:4176 92:528 93:1388 94:1299 95:1020 96:431
97:281 98:907 99:37 101:90 103:356 106:70
107:64 108:54 109:1045 110:637 111:790 112:313
113:461 114:564 115:669 116:862 117:687 118:857
119:1221 120:336 121:675 122:1577 123:1020 124:1304
125:1327 128:207 129:171 130:160 131:584 132:112
133:21 134:210 135:54 136:211 137:136 138:289
139:117 140:471 141:293 142:369 143:425 144:491
145:63 146:466 147:216 148:616 149:265 150:148
151:193 152:446 153:178 154:6 155:385 156:204
157:329 158:152 159:399 160:319 161:199 162:334
163:164 164:505 165:363 166:536 167:435 168:741
169:143 170:870 171:85 172:4 173:1671 174:661
175:406 176:279 177:321 178:1053 180:1099 181:36
182:621 183:205 184:367 185:1 186:2089 187:667
188:928 189:847 190:5256 192:5867 193:5016 194:3530
195:3095 196:1239 197:185 198:3571 199:4105 200:5427
201:1651 202:8261 203:8356 204:4231 205:2350 206:2585
207:2760 208:4045 209:3458 210:2624 211:1446 212:2065
213:1767 214:788 215:88 216:4913 217:1611 218:553
219:331 220:1202 221:498 222:293 223:274
End of report