Routing Table Report 00:00 GMT Thu 29 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: 378854
Prefixes after maximum aggregation: 169540
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 180177
Total ASes present in the Internet Routing Table: 38938
Prefixes per ASN: 9.73
Origin-only ASes present in the Internet Routing Table: 32231
Origin ASes announcing only one prefix: 15493
Transit ASes present in the Internet Routing Table: 5258
Transit-only ASes present in the Internet Routing Table: 142
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 32
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 4785
Unregistered ASNs in the Routing Table: 802
Number of 32-bit ASNs allocated by the RIRs: 1786
Number of 32-bit ASNs visible in the Routing Table: 1449
Prefixes from 32-bit ASNs in the Routing Table: 3320
Special use prefixes present in the Routing Table: 82
Prefixes being announced from unallocated address space: 100
Number of addresses announced to Internet: 2310818966
Equivalent to 137 /8s, 188 /16s and 76 /24s
Percentage of available address space announced: 62.3
Percentage of allocated address space announced: 62.3
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: 157402
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92349
Total APNIC prefixes after maximum aggregation: 29554
APNIC Deaggregation factor: 3.12
Prefixes being announced from the APNIC address blocks: 88909
Unique aggregates announced from the APNIC address blocks: 36853
APNIC Region origin ASes present in the Internet Routing Table: 4554
APNIC Prefixes per ASN: 19.52
APNIC Region origin ASes announcing only one prefix: 1267
APNIC Region transit ASes present in the Internet Routing Table: 717
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 23
Number of APNIC region 32-bit ASNs visible in the Routing Table: 88
Number of APNIC addresses announced to Internet: 611142656
Equivalent to 36 /8s, 109 /16s and 76 /24s
Percentage of available APNIC address space announced: 77.5
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: 147324
Total ARIN prefixes after maximum aggregation: 75938
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 119088
Unique aggregates announced from the ARIN address blocks: 45321
ARIN Region origin ASes present in the Internet Routing Table: 14704
ARIN Prefixes per ASN: 8.10
ARIN Region origin ASes announcing only one prefix: 5640
ARIN Region transit ASes present in the Internet Routing Table: 1554
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: 667527068
Equivalent to 39 /8s, 201 /16s and 167 /24s
Percentage of available ARIN address space announced: 53.1
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: 91533
Total RIPE prefixes after maximum aggregation: 50516
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 83401
Unique aggregates announced from the RIPE address blocks: 52895
RIPE Region origin ASes present in the Internet Routing Table: 16018
RIPE Prefixes per ASN: 5.21
RIPE Region origin ASes announcing only one prefix: 7977
RIPE Region transit ASes present in the Internet Routing Table: 2531
Average RIPE Region AS path length visible: 4.5
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1028
Number of RIPE addresses announced to Internet: 474567116
Equivalent to 28 /8s, 73 /16s and 81 /24s
Percentage of available RIPE address space announced: 76.4
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: 35561
Total LACNIC prefixes after maximum aggregation: 7848
LACNIC Deaggregation factor: 4.53
Prefixes being announced from the LACNIC address blocks: 34833
Unique aggregates announced from the LACNIC address blocks: 17971
LACNIC Region origin ASes present in the Internet Routing Table: 1533
LACNIC Prefixes per ASN: 22.72
LACNIC Region origin ASes announcing only one prefix: 454
LACNIC Region transit ASes present in the Internet Routing Table: 278
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: 317
Number of LACNIC addresses announced to Internet: 89298184
Equivalent to 5 /8s, 82 /16s and 149 /24s
Percentage of available LACNIC address space announced: 59.1
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: 8575
Total AfriNIC prefixes after maximum aggregation: 2010
AfriNIC Deaggregation factor: 4.27
Prefixes being announced from the AfriNIC address blocks: 6637
Unique aggregates announced from the AfriNIC address blocks: 1959
AfriNIC Region origin ASes present in the Internet Routing Table: 490
AfriNIC Prefixes per ASN: 13.54
AfriNIC Region origin ASes announcing only one prefix: 155
AfriNIC Region transit ASes present in the Internet Routing Table: 107
Average AfriNIC Region AS path length visible: 4.3
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: 27355904
Equivalent to 1 /8s, 161 /16s and 107 /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 2017 519 33 PT TELEKOMUNIKASI INDONESIA
4766 1939 11040 650 Korea Telecom (KIX)
7545 1604 303 86 TPG Internet Pty Ltd
4755 1539 378 173 Videsh Sanchar Nigam Ltd. Aut
7552 1392 1064 7 Vietel Corporation
24560 1183 346 189 Bharti Airtel Ltd.
9829 1158 989 28 BSNL National Internet Backbo
4808 1090 2124 311 CNCGROUP IP network: China169
9583 1086 80 502 Sify Limited
18101 951 118 141 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 3560 3817 225 bellsouth.net, inc.
18566 1915 366 239 Covad Communications
1785 1829 680 124 AppliedTheory Corporation
7029 1732 1018 219 Windstream Communications Inc
4323 1624 1098 391 Time Warner Telecom
20115 1595 1543 636 Charter Communications
22773 1460 2907 99 Cox Communications, Inc.
30036 1406 261 670 Mediacom Communications Corp
19262 1394 4728 400 Verizon Global Networks
7018 1341 7051 872 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
8402 1070 352 13 Corbina telecom
286 1064 824 199 KPNQwest Backbone AS
34984 575 108 179 Tellcom Iletisim Hizmetleri
20940 542 182 418 Akamai Technologies European
9116 540 326 31 Goldenlines main autonomous s
6830 533 1813 324 UPC Distribution Services
3292 529 2082 408 TDC Tele Danmark
3320 501 8169 383 Deutsche Telekom AG
12479 475 593 7 Uni2 Autonomous System
8866 458 133 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 1681 310 155 TVCABLE BOGOTA
8151 1446 2798 352 Uninet S.A. de C.V.
28573 1358 1013 70 Types of queries are: POCs, o
7303 1163 682 174 Telecom Argentina Stet-France
14420 736 58 88 Types of queries are: POCs, o
6503 588 450 71 AVANTEL, S.A.
27947 584 55 82 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 813 147 37 LINKdotNET AS number
8452 689 445 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
29571 192 17 11 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 3560 3817 225 bellsouth.net, inc.
17974 2017 519 33 PT TELEKOMUNIKASI INDONESIA
4766 1939 11040 650 Korea Telecom (KIX)
18566 1915 366 239 Covad Communications
1785 1829 680 124 AppliedTheory Corporation
7029 1732 1018 219 Windstream Communications Inc
10620 1681 310 155 TVCABLE BOGOTA
4323 1624 1098 391 Time Warner Telecom
7545 1604 303 86 TPG Internet Pty Ltd
20115 1595 1543 636 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 2017 1984 PT TELEKOMUNIKASI INDONESIA
1785 1829 1705 AppliedTheory Corporation
18566 1915 1676 Covad Communications
23456 3320 1526 >>UNKNOWN<<
10620 1681 1526 TVCABLE BOGOTA
7545 1604 1518 TPG Internet Pty Ltd
7029 1732 1513 Windstream Communications Inc
7552 1392 1385 Vietel Corporation
4755 1539 1366 Videsh Sanchar Nigam Ltd. Aut
22773 1460 1361 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<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 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 /8:20 /9:12 /10:27 /11:81 /12:234
/13:463 /14:809 /15:1456 /16:12116 /17:6247 /18:10339
/19:20340 /20:28215 /21:27696 /22:37155 /23:35413 /24:196445
/25:73 /26:88 /27:115 /28:286 /29:101 /30:557
/31:73 /32:493
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2197 3560 bellsouth.net, inc.
18566 1870 1915 Covad Communications
10620 1576 1681 TVCABLE BOGOTA
7029 1421 1732 Windstream Communications Inc
30036 1363 1406 Mediacom Communications Corp
11492 1115 1153 Cable One
7011 1054 1175 Citizens Utilities
1785 1053 1829 AppliedTheory Corporation
8402 1017 1070 Corbina telecom
22773 949 1460 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:385 2:322 4:19 5:1 6:3 8:357
12:1960 13:1 14:533 15:13 16:3 17:7
20:10 23:35 24:1692 27:948 31:558 32:149
33:4 34:2 36:4 38:751 40:108 41:2667
42:49 44:3 46:997 47:3 49:262 50:430
52:13 54:2 55:3 56:2 57:47 58:880
59:493 60:363 61:1181 62:1099 63:1959 64:4096
65:2306 66:4019 67:1980 68:1298 69:3310 70:861
71:377 72:1890 73:1 74:2508 75:361 76:349
77:876 78:816 79:490 80:1127 81:853 82:514
83:556 84:629 85:1093 86:417 87:882 88:357
89:1597 90:268 91:4142 92:534 93:1310 94:1291
95:928 96:441 97:277 98:933 99:37 101:208
103:325 106:70 107:53 108:80 109:1042 110:672
111:790 112:322 113:453 114:570 115:697 116:903
117:706 118:905 119:1207 120:282 121:700 122:1611
123:1012 124:1335 125:1394 128:245 129:181 130:164
131:581 132:115 133:21 134:215 135:54 136:213
137:139 138:288 139:133 140:496 141:291 142:391
143:419 144:483 145:63 146:472 147:226 148:686
149:262 150:152 151:193 152:446 153:177 154:6
155:388 156:207 157:362 158:146 159:465 160:323
161:205 162:336 163:177 164:508 165:383 166:539
167:433 168:741 169:148 170:866 171:84 172:1
173:1658 174:654 175:413 176:217 177:306 178:1033
180:1097 181:37 182:632 183:212 184:369 185:1
186:1468 187:670 188:931 189:861 190:5172 192:5945
193:5032 194:3553 195:3093 196:1260 197:176 198:3671
199:4143 200:5522 201:1641 202:8583 203:8563 204:4261
205:2380 206:2736 207:2830 208:4167 209:3549 210:2730
211:1559 212:2097 213:1774 214:781 215:75 216:4953
217:1607 218:556 219:339 220:1229 221:501 222:342
223:263
End of report
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