Routing Table Report 00:00 GMT Mon 26 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: 378271
Prefixes after maximum aggregation: 169441
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 185263
Total ASes present in the Internet Routing Table: 38898
Prefixes per ASN: 9.72
Origin-only ASes present in the Internet Routing Table: 32222
Origin ASes announcing only one prefix: 15492
Transit ASes present in the Internet Routing Table: 5243
Transit-only ASes present in the Internet Routing Table: 143
Average AS path length visible in the Internet Routing Table: 4.1
Max AS path length visible: 32
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 4671
Unregistered ASNs in the Routing Table: 782
Number of 32-bit ASNs allocated by the RIRs: 1771
Number of 32-bit ASNs visible in the Routing Table: 1433
Prefixes from 32-bit ASNs in the Routing Table: 3286
Special use prefixes present in the Routing Table: 82
Prefixes being announced from unallocated address space: 96
Number of addresses announced to Internet: 2480798358
Equivalent to 147 /8s, 221 /16s and 250 /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: 91.4
Total number of prefixes smaller than registry allocations: 157241
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92013
Total APNIC prefixes after maximum aggregation: 29592
APNIC Deaggregation factor: 3.11
Prefixes being announced from the APNIC address blocks: 88632
Unique aggregates announced from the APNIC address blocks: 38162
APNIC Region origin ASes present in the Internet Routing Table: 4553
APNIC Prefixes per ASN: 19.47
APNIC Region origin ASes announcing only one prefix: 1263
APNIC Region transit ASes present in the Internet Routing Table: 721
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 22
Number of APNIC region 32-bit ASNs visible in the Routing Table: 89
Number of APNIC addresses announced to Internet: 628060672
Equivalent to 37 /8s, 111 /16s and 114 /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: 147269
Total ARIN prefixes after maximum aggregation: 75905
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 119037
Unique aggregates announced from the ARIN address blocks: 47958
ARIN Region origin ASes present in the Internet Routing Table: 14707
ARIN Prefixes per ASN: 8.09
ARIN Region origin ASes announcing only one prefix: 5659
ARIN Region transit ASes present in the Internet Routing Table: 1552
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 805086876
Equivalent to 47 /8s, 252 /16s and 166 /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: 91433
Total RIPE prefixes after maximum aggregation: 50466
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 83305
Unique aggregates announced from the RIPE address blocks: 54106
RIPE Region origin ASes present in the Internet Routing Table: 15998
RIPE Prefixes per ASN: 5.21
RIPE Region origin ASes announcing only one prefix: 7965
RIPE Region transit ASes present in the Internet Routing Table: 2528
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1017
Number of RIPE addresses announced to Internet: 490086092
Equivalent to 29 /8s, 54 /16s and 30 /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: 35562
Total LACNIC prefixes after maximum aggregation: 7819
LACNIC Deaggregation factor: 4.55
Prefixes being announced from the LACNIC address blocks: 34775
Unique aggregates announced from the LACNIC address blocks: 17907
LACNIC Region origin ASes present in the Internet Routing Table: 1529
LACNIC Prefixes per ASN: 22.74
LACNIC Region origin ASes announcing only one prefix: 452
LACNIC Region transit ASes present in the Internet Routing Table: 272
Average LACNIC Region AS path length visible: 4.7
Max LACNIC Region AS path length visible: 20
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 311
Number of LACNIC addresses announced to Internet: 89330184
Equivalent to 5 /8s, 83 /16s and 18 /24s
Percentage of available LACNIC address space announced: 59.2
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: 8512
Total AfriNIC prefixes after maximum aggregation: 2013
AfriNIC Deaggregation factor: 4.23
Prefixes being announced from the AfriNIC address blocks: 6597
Unique aggregates announced from the AfriNIC address blocks: 2001
AfriNIC Region origin ASes present in the Internet Routing Table: 487
AfriNIC Prefixes per ASN: 13.55
AfriNIC Region origin ASes announcing only one prefix: 153
AfriNIC Region transit ASes present in the Internet Routing Table: 104
Average AfriNIC Region AS path length visible: 3.8
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: 27393280
Equivalent to 1 /8s, 161 /16s and 253 /24s
Percentage of available AfriNIC address space announced: 40.8
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 1994 519 33 PT TELEKOMUNIKASI INDONESIA
4766 1939 11056 650 Korea Telecom (KIX)
7545 1602 303 86 TPG Internet Pty Ltd
4755 1536 634 171 Videsh Sanchar Nigam Ltd. Aut
7552 1393 1064 7 Vietel Corporation
24560 1181 337 193 Bharti Airtel Ltd.
9829 1158 989 28 BSNL National Internet Backbo
4808 1090 2119 310 CNCGROUP IP network: China169
9583 1090 80 504 Sify Limited
18101 952 118 141 Reliance Infocom Ltd Internet
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 3559 3817 229 bellsouth.net, inc.
18566 1915 366 239 Covad Communications
1785 1827 680 124 AppliedTheory Corporation
7029 1723 1018 218 Windstream Communications Inc
4323 1624 1098 391 Time Warner Telecom
20115 1596 1543 633 Charter Communications
22773 1458 2907 99 Cox Communications, Inc.
30036 1420 264 677 Mediacom Communications Corp
19262 1396 4728 400 Verizon Global Networks
7018 1339 7051 873 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 1064 824 199 KPNQwest Backbone AS
8402 997 352 13 Corbina telecom
34984 566 108 181 Tellcom Iletisim Hizmetleri
20940 548 184 423 Akamai Technologies European
9116 540 326 31 Goldenlines main autonomous s
6830 534 1813 325 UPC Distribution Services
3292 528 2082 407 TDC Tele Danmark
3320 493 8167 381 Deutsche Telekom AG
12479 475 594 8 Uni2 Autonomous System
8866 461 133 26 Bulgarian Telecommunication C
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 1680 309 155 TVCABLE BOGOTA
8151 1451 2803 347 Uninet S.A. de C.V.
28573 1359 1013 70 Types of queries are: POCs, o
7303 1162 681 173 Telecom Argentina Stet-France
14420 736 58 88 Types of queries are: POCs, o
6503 590 450 70 AVANTEL, S.A.
27947 584 56 75 Telconet S.A
22047 580 322 17 Types of queries are: POCs, o
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 812 147 43 LINKdotNET AS number
8452 713 445 11 TEDATA
15475 450 74 8 Nile Online
36992 292 415 14 Etisalat MISR
3741 274 938 229 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 YEBO-AS
24835 190 80 8 RAYA Telecom - Egypt
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 3559 3817 229 bellsouth.net, inc.
23456 3286 777 1780 >>UNKNOWN<<
17974 1994 519 33 PT TELEKOMUNIKASI INDONESIA
4766 1939 11056 650 Korea Telecom (KIX)
18566 1915 366 239 Covad Communications
1785 1827 680 124 AppliedTheory Corporation
7029 1723 1018 218 Windstream Communications Inc
10620 1680 309 155 TVCABLE BOGOTA
4323 1624 1098 391 Time Warner Telecom
7545 1602 303 86 TPG Internet Pty Ltd
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 1994 1961 PT TELEKOMUNIKASI INDONESIA
1785 1827 1703 AppliedTheory Corporation
18566 1915 1676 Covad Communications
10620 1680 1525 TVCABLE BOGOTA
7545 1602 1516 TPG Internet Pty Ltd
23456 3286 1506 >>UNKNOWN<<
7029 1723 1505 Windstream Communications Inc
7552 1393 1386 Vietel Corporation
4755 1536 1365 Videsh Sanchar Nigam Ltd. Aut
22773 1458 1359 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 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
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<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
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 /15:1453 /16:12106 /17:6250 /18:10332
/19:20360 /20:28226 /21:27586 /22:36982 /23:35440 /24:196086
/25:74 /26:88 /27:122 /28:294 /29:102 /30:556
/31:73 /32:495
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2196 3559 bellsouth.net, inc.
18566 1870 1915 Covad Communications
10620 1575 1680 TVCABLE BOGOTA
23456 1570 3286 >>UNKNOWN<<
7029 1412 1723 Windstream Communications Inc
30036 1377 1420 Mediacom Communications Corp
11492 1114 1152 Cable One
7011 1057 1182 Citizens Utilities
1785 1053 1827 AppliedTheory Corporation
22773 947 1458 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:384 2:301 4:19 5:1 6:3 8:353
12:1958 13:1 14:544 15:13 16:3 17:7
20:9 23:35 24:1687 27:939 31:549 32:149
33:4 34:2 36:4 38:747 40:108 41:2607
42:48 44:3 46:995 47:3 49:258 50:426
52:13 54:2 55:4 56:2 57:46 58:883
59:493 60:376 61:1184 62:1100 63:1964 64:4098
65:2307 66:4011 67:1990 68:1293 69:3308 70:860
71:377 72:1886 73:1 74:2507 75:361 76:349
77:871 78:807 79:490 80:1129 81:841 82:518
83:524 84:639 85:1089 86:417 87:879 88:357
89:1604 90:267 91:4119 92:533 93:1307 94:1329
95:916 96:440 97:276 98:947 99:37 101:210
103:319 106:70 107:52 108:81 109:1035 110:675
111:791 112:324 113:450 114:571 115:696 116:908
117:701 118:901 119:1187 120:334 121:699 122:1610
123:1009 124:1342 125:1394 128:245 129:181 130:165
131:583 132:122 133:21 134:216 135:54 136:212
137:139 138:289 139:131 140:494 141:287 142:390
143:410 144:489 145:58 146:472 147:226 148:691
149:259 150:153 151:191 152:446 153:177 154:6
155:394 156:205 157:360 158:146 159:462 160:324
161:207 162:340 163:177 164:507 165:402 166:537
167:434 168:749 169:147 170:861 171:83 172:1
173:1661 174:657 175:411 176:210 177:278 178:1015
180:1089 181:30 182:631 183:222 184:366 185:1
186:1465 187:669 188:945 189:854 190:5176 192:5944
193:5027 194:3557 195:3080 196:1247 197:176 198:3608
199:4132 200:5518 201:1638 202:8568 203:8496 204:4259
205:2370 206:2741 207:2841 208:4162 209:3544 210:2733
211:1471 212:2136 213:1784 214:779 215:76 216:4939
217:1612 218:563 219:341 220:1231 221:514 222:343
223:263
End of report
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