Routing Table Report 00:00 GMT Sun 18 Sep, 2011
NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/rviews/
Analysis Summary
----------------
BGP routing table entries examined: 376086
Prefixes after maximum aggregation: 168929
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 184906
Total ASes present in the Internet Routing Table: 38816
Prefixes per ASN: 9.69
Origin-only ASes present in the Internet Routing Table: 32198
Origin ASes announcing only one prefix: 15473
Transit ASes present in the Internet Routing Table: 5204
Transit-only ASes present in the Internet Routing Table: 135
Average AS path length visible in the Internet Routing Table: 3.8
Max AS path length visible: 36
Max AS path prepend of ASN (22394) 33
Prefixes from unregistered ASNs in the Routing Table: 4600
Unregistered ASNs in the Routing Table: 748
Number of 32-bit ASNs allocated by the RIRs: 1745
Number of 32-bit ASNs visible in the Routing Table: 1414
Prefixes from 32-bit ASNs in the Routing Table: 3268
Special use prefixes present in the Routing Table: 83
Prefixes being announced from unallocated address space: 109
Number of addresses announced to Internet: 2478426519
Equivalent to 147 /8s, 185 /16s and 201 /24s
Percentage of available address space announced: 66.9
Percentage of allocated address space announced: 66.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.3
Total number of prefixes smaller than registry allocations: 155771
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 91889
Total APNIC prefixes after maximum aggregation: 29536
APNIC Deaggregation factor: 3.11
Prefixes being announced from the APNIC address blocks: 88527
Unique aggregates announced from the APNIC address blocks: 38198
APNIC Region origin ASes present in the Internet Routing Table: 4551
APNIC Prefixes per ASN: 19.45
APNIC Region origin ASes announcing only one prefix: 1265
APNIC Region transit ASes present in the Internet Routing Table: 722
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 87
Number of APNIC addresses announced to Internet: 627706880
Equivalent to 37 /8s, 106 /16s and 12 /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: 146673
Total ARIN prefixes after maximum aggregation: 75686
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 118312
Unique aggregates announced from the ARIN address blocks: 47898
ARIN Region origin ASes present in the Internet Routing Table: 14668
ARIN Prefixes per ASN: 8.07
ARIN Region origin ASes announcing only one prefix: 5637
ARIN Region transit ASes present in the Internet Routing Table: 1506
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 36
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 804885916
Equivalent to 47 /8s, 249 /16s and 149 /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: 90175
Total RIPE prefixes after maximum aggregation: 50273
RIPE Deaggregation factor: 1.79
Prefixes being announced from the RIPE address blocks: 82370
Unique aggregates announced from the RIPE address blocks: 53951
RIPE Region origin ASes present in the Internet Routing Table: 15985
RIPE Prefixes per ASN: 5.15
RIPE Region origin ASes announcing only one prefix: 7958
RIPE Region transit ASes present in the Internet Routing Table: 2525
Average RIPE Region AS path length visible: 3.8
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1004
Number of RIPE addresses announced to Internet: 489471436
Equivalent to 29 /8s, 44 /16s and 189 /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: 35392
Total LACNIC prefixes after maximum aggregation: 7805
LACNIC Deaggregation factor: 4.53
Prefixes being announced from the LACNIC address blocks: 34573
Unique aggregates announced from the LACNIC address blocks: 17830
LACNIC Region origin ASes present in the Internet Routing Table: 1529
LACNIC Prefixes per ASN: 22.61
LACNIC Region origin ASes announcing only one prefix: 457
LACNIC Region transit ASes present in the Internet Routing Table: 276
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 307
Number of LACNIC addresses announced to Internet: 89118984
Equivalent to 5 /8s, 79 /16s and 217 /24s
Percentage of available LACNIC address space announced: 59.0
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: 8506
Total AfriNIC prefixes after maximum aggregation: 2035
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6579
Unique aggregates announced from the AfriNIC address blocks: 2033
AfriNIC Region origin ASes present in the Internet Routing Table: 486
AfriNIC Prefixes per ASN: 13.54
AfriNIC Region origin ASes announcing only one prefix: 156
AfriNIC Region transit ASes present in the Internet Routing Table: 105
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 27212032
Equivalent to 1 /8s, 159 /16s and 57 /24s
Percentage of available AfriNIC address space announced: 40.5
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
17974 2005 516 31 PT TELEKOMUNIKASI INDONESIA
4766 1945 11063 650 Korea Telecom (KIX)
7545 1594 303 85 TPG Internet Pty Ltd
4755 1545 639 169 Videsh Sanchar Nigam Ltd. Aut
7552 1415 1064 7 Vietel Corporation
24560 1182 337 194 Bharti Airtel Ltd.
9829 1158 989 28 BSNL National Internet Backbo
9583 1083 80 507 Sify Limited
4808 1046 2076 295 CNCGROUP IP network: China169
17488 981 190 159 Hathway IP Over Cable Interne
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3564 3817 227 bellsouth.net, inc.
18566 1912 364 237 Covad Communications
1785 1825 680 122 AppliedTheory Corporation
7029 1642 1037 207 Windstream Communications Inc
4323 1624 1101 393 Time Warner Telecom
20115 1595 1542 634 Charter Communications
22773 1456 2907 99 Cox Communications, Inc.
30036 1423 263 688 Mediacom Communications Corp
19262 1394 4724 399 Verizon Global Networks
7018 1340 7068 880 AT&T WorldNet Services
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
286 1073 825 202 KPNQwest Backbone AS
34984 558 107 178 Tellcom Iletisim Hizmetleri
9116 540 326 31 Goldenlines main autonomous s
6830 526 1811 323 UPC Distribution Services
3292 524 2081 405 TDC Tele Danmark
20940 522 167 406 Akamai Technologies European
12479 472 594 8 Uni2 Autonomous System
8866 461 133 26 Bulgarian Telecommunication C
3320 432 8152 376 Deutsche Telekom AG
29049 424 31 55 AzerSat LLC.
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1675 308 159 TVCABLE BOGOTA
8151 1444 2783 354 Uninet S.A. de C.V.
28573 1342 1012 68 Types of queries are: POCs, o
7303 1156 678 170 Telecom Argentina Stet-France
14420 732 58 93 Types of queries are: POCs, o
6503 589 450 69 AVANTEL, S.A.
22047 579 322 17 Types of queries are: POCs, o
27947 579 56 77 Telconet S.A
10481 548 430 20 Prima S.A.
3816 535 232 98 COLOMBIA TELECOMUNICACIONES S
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 813 147 43 LINKdotNET AS number
8452 698 445 11 TEDATA
15475 512 74 8 Nile Online
36992 309 417 15 Etisalat MISR
3741 274 938 229 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
33776 239 13 8 Starcomms Nigeria Limited
15706 219 32 6 Sudatel Internet Exchange Aut
12258 199 28 59 YEBO-AS
29571 198 17 13 Ci Telecom Autonomous system
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3564 3817 227 bellsouth.net, inc.
23456 3268 771 1754 >>UNKNOWN<<
17974 2005 516 31 PT TELEKOMUNIKASI INDONESIA
4766 1945 11063 650 Korea Telecom (KIX)
18566 1912 364 237 Covad Communications
1785 1825 680 122 AppliedTheory Corporation
10620 1675 308 159 TVCABLE BOGOTA
7029 1642 1037 207 Windstream Communications Inc
4323 1624 1101 393 Time Warner Telecom
20115 1595 1542 634 Charter Communications
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
17974 2005 1974 PT TELEKOMUNIKASI INDONESIA
1785 1825 1703 AppliedTheory Corporation
18566 1912 1675 Covad Communications
10620 1675 1516 TVCABLE BOGOTA
23456 3268 1514 >>UNKNOWN<<
7545 1594 1509 TPG Internet Pty Ltd
7029 1642 1435 Windstream Communications Inc
7552 1415 1408 Vietel Corporation
4755 1545 1376 Videsh Sanchar Nigam Ltd. Aut
22773 1456 1357 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
26973 UNALLOCATED 12.39.152.0/24 1239 Sprint
26973 UNALLOCATED 12.39.154.0/23 1239 Sprint
26973 UNALLOCATED 12.39.155.0/24 1239 Sprint
26973 UNALLOCATED 12.39.159.0/24 1239 Sprint
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.244.56/29 286 KPNQwest Backbone AS
10.29.245.1/32 286 KPNQwest Backbone AS
10.29.245.2/32 286 KPNQwest Backbone AS
10.29.245.15/32 286 KPNQwest Backbone AS
10.29.245.19/32 286 KPNQwest Backbone AS
10.29.245.20/32 286 KPNQwest Backbone AS
10.29.245.21/32 286 KPNQwest Backbone AS
10.29.245.22/32 286 KPNQwest Backbone AS
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/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 >>UNKNOWN<<
50.115.160.0/20 32097 WholeSale Internet
Complete listing at http://thyme.rand.apnic.net/rviews/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 /8:19 /9:12 /10:27 /11:81 /12:235
/13:464 /14:808 /15:1448 /16:12076 /17:6223 /18:10291
/19:20297 /20:28153 /21:27485 /22:36617 /23:35287 /24:194754
/25:76 /26:89 /27:120 /28:289 /29:105 /30:554
/31:73 /32:503
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2200 3564 bellsouth.net, inc.
18566 1868 1912 Covad Communications
23456 1576 3268 >>UNKNOWN<<
10620 1570 1675 TVCABLE BOGOTA
30036 1381 1423 Mediacom Communications Corp
7029 1326 1642 Windstream Communications Inc
11492 1114 1152 Cable One
7011 1058 1183 Citizens Utilities
1785 1052 1825 AppliedTheory Corporation
22773 945 1456 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:373 2:52 4:19 5:1 6:3 8:352
12:1955 13:1 14:540 15:13 16:3 17:5
20:10 23:34 24:1682 27:943 31:535 32:149
33:4 34:2 36:4 38:744 40:108 41:2577
42:48 44:3 46:988 47:3 49:251 50:419
52:13 54:2 55:5 56:2 57:45 58:874
59:499 60:376 61:1179 62:1098 63:1962 64:4092
65:2298 66:3972 67:1976 68:1276 69:3293 70:829
71:377 72:1888 73:1 74:2490 75:339 76:347
77:871 78:668 79:482 80:1122 81:843 82:518
83:504 84:702 85:1090 86:417 87:874 88:354
89:1548 90:234 91:4108 92:527 93:1155 94:1334
95:790 96:440 97:272 98:945 99:37 101:207
103:302 106:94 107:45 108:82 109:1025 110:669
111:785 112:321 113:443 114:570 115:691 116:950
117:700 118:896 119:1195 120:338 121:701 122:1605
123:1018 124:1357 125:1396 128:245 129:181 130:165
131:572 132:120 133:21 134:216 135:53 136:206
137:137 138:294 139:121 140:492 141:288 142:392
143:402 144:482 145:58 146:468 147:225 148:688
149:251 150:153 151:190 152:452 153:177 154:6
155:391 156:201 157:357 158:144 159:461 160:327
161:207 162:335 163:176 164:508 165:403 166:538
167:434 168:745 169:147 170:859 171:84 172:4
173:1656 174:633 175:404 176:178 177:252 178:999
180:1077 181:26 182:625 183:238 184:357 185:1
186:1454 187:673 188:939 189:873 190:5172 192:5944
193:5020 194:3548 195:3080 196:1252 197:142 198:3599
199:4121 200:5518 201:1634 202:8554 203:8507 204:4256
205:2356 206:2737 207:2842 208:4159 209:3544 210:2716
211:1473 212:2137 213:1780 214:780 215:76 216:4909
217:1616 218:554 219:334 220:1229 221:515 222:343
223:267
End of report
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