Routing Table Report 00:00 GMT Tue 04 Oct, 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: 379406
Prefixes after maximum aggregation: 169795
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 185195
Total ASes present in the Internet Routing Table: 38929
Prefixes per ASN: 9.75
Origin-only ASes present in the Internet Routing Table: 32248
Origin ASes announcing only one prefix: 15464
Transit ASes present in the Internet Routing Table: 5219
Transit-only ASes present in the Internet Routing Table: 138
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 32
Max AS path prepend of ASN (51310) 23
Prefixes from unregistered ASNs in the Routing Table: 4881
Unregistered ASNs in the Routing Table: 809
Number of 32-bit ASNs allocated by the RIRs: 1810
Number of 32-bit ASNs visible in the Routing Table: 1462
Prefixes from 32-bit ASNs in the Routing Table: 3381
Special use prefixes present in the Routing Table: 82
Prefixes being announced from unallocated address space: 94
Number of addresses announced to Internet: 2482603282
Equivalent to 147 /8s, 249 /16s and 133 /24s
Percentage of available address space announced: 67.0
Percentage of allocated address space announced: 67.0
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: 158047
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92184
Total APNIC prefixes after maximum aggregation: 29640
APNIC Deaggregation factor: 3.11
Prefixes being announced from the APNIC address blocks: 88760
Unique aggregates announced from the APNIC address blocks: 37955
APNIC Region origin ASes present in the Internet Routing Table: 4558
APNIC Prefixes per ASN: 19.47
APNIC Region origin ASes announcing only one prefix: 1274
APNIC Region transit ASes present in the Internet Routing Table: 719
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 90
Number of APNIC addresses announced to Internet: 628433408
Equivalent to 37 /8s, 117 /16s and 34 /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: 147331
Total ARIN prefixes after maximum aggregation: 76073
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 119181
Unique aggregates announced from the ARIN address blocks: 47882
ARIN Region origin ASes present in the Internet Routing Table: 14704
ARIN Prefixes per ASN: 8.11
ARIN Region origin ASes announcing only one prefix: 5637
ARIN Region transit ASes present in the Internet Routing Table: 1534
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 804529176
Equivalent to 47 /8s, 244 /16s and 36 /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: 92129
Total RIPE prefixes after maximum aggregation: 50583
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 83975
Unique aggregates announced from the RIPE address blocks: 54170
RIPE Region origin ASes present in the Internet Routing Table: 16004
RIPE Prefixes per ASN: 5.25
RIPE Region origin ASes announcing only one prefix: 7949
RIPE Region transit ASes present in the Internet Routing Table: 2509
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1034
Number of RIPE addresses announced to Internet: 490714060
Equivalent to 29 /8s, 63 /16s and 179 /24s
Percentage of available RIPE address space announced: 79.1
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: 35601
Total LACNIC prefixes after maximum aggregation: 7790
LACNIC Deaggregation factor: 4.57
Prefixes being announced from the LACNIC address blocks: 34867
Unique aggregates announced from the LACNIC address blocks: 18026
LACNIC Region origin ASes present in the Internet Routing Table: 1531
LACNIC Prefixes per ASN: 22.77
LACNIC Region origin ASes announcing only one prefix: 451
LACNIC Region transit ASes present in the Internet Routing Table: 276
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 20
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 322
Number of LACNIC addresses announced to Internet: 89879048
Equivalent to 5 /8s, 91 /16s and 114 /24s
Percentage of available LACNIC address space announced: 59.5
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: 8588
Total AfriNIC prefixes after maximum aggregation: 2008
AfriNIC Deaggregation factor: 4.28
Prefixes being announced from the AfriNIC address blocks: 6660
Unique aggregates announced from the AfriNIC address blocks: 1925
AfriNIC Region origin ASes present in the Internet Routing Table: 485
AfriNIC Prefixes per ASN: 13.73
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: 4.1
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 27635712
Equivalent to 1 /8s, 165 /16s and 176 /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
17974 1963 519 33 PT TELEKOMUNIKASI INDONESIA
4766 1951 11073 662 Korea Telecom (KIX)
7545 1604 303 85 TPG Internet Pty Ltd
4755 1537 378 173 Videsh Sanchar Nigam Ltd. Aut
7552 1392 1064 7 Vietel Corporation
24560 1177 345 208 Bharti Airtel Ltd.
9829 1164 989 28 BSNL National Internet Backbo
9583 1087 80 503 Sify Limited
4808 1050 2079 297 CNCGROUP IP network: China169
18101 952 165 143 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 3555 3817 225 bellsouth.net, inc.
18566 1914 366 238 Covad Communications
7029 1859 1033 206 Windstream Communications Inc
1785 1831 680 125 AppliedTheory Corporation
4323 1628 1098 391 Time Warner Telecom
20115 1591 1541 634 Charter Communications
22773 1458 2907 100 Cox Communications, Inc.
19262 1394 4728 400 Verizon Global Networks
30036 1372 249 673 Mediacom Communications Corp
7018 1345 11164 877 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 1404 352 13 Corbina telecom
286 1073 825 200 KPNQwest Backbone AS
34984 574 108 181 Tellcom Iletisim Hizmetleri
6830 558 1873 333 UPC Distribution Services
9116 540 326 31 Goldenlines main autonomous s
20940 537 182 413 Akamai Technologies European
3292 529 2082 408 TDC Tele Danmark
3320 500 8169 383 Deutsche Telekom AG
12479 475 593 7 Uni2 Autonomous System
8866 459 133 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 2804 340 Uninet S.A. de C.V.
28573 1358 1013 70 Types of queries are: POCs, o
7303 1164 683 175 Telecom Argentina Stet-France
14420 742 58 87 Types of queries are: POCs, o
27947 588 72 79 Telconet S.A
6503 585 450 71 AVANTEL, S.A.
22047 581 322 17 Types of queries are: POCs, o
10481 548 430 20 Prima S.A.
3816 536 232 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 808 146 36 LINKdotNET AS number
8452 727 445 11 TEDATA
15475 445 74 8 Nile Online
36992 298 415 19 Etisalat MISR
3741 275 938 229 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 3555 3817 225 bellsouth.net, inc.
17974 1963 519 33 PT TELEKOMUNIKASI INDONESIA
4766 1951 11073 662 Korea Telecom (KIX)
18566 1914 366 238 Covad Communications
7029 1859 1033 206 Windstream Communications Inc
1785 1831 680 125 AppliedTheory Corporation
10620 1681 310 155 TVCABLE BOGOTA
4323 1628 1098 391 Time Warner Telecom
7545 1604 303 85 TPG Internet Pty Ltd
20115 1591 1541 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 1963 1930 PT TELEKOMUNIKASI INDONESIA
1785 1831 1706 AppliedTheory Corporation
18566 1914 1676 Covad Communications
7029 1859 1653 Windstream Communications Inc
10620 1681 1526 TVCABLE BOGOTA
7545 1604 1519 TPG Internet Pty Ltd
8402 1404 1391 Corbina telecom
7552 1392 1385 Vietel Corporation
4755 1537 1364 Videsh Sanchar Nigam Ltd. Aut
22773 1458 1358 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
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
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
32873 UNALLOCATED 12.46.100.0/23 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 /12:235
/13:464 /14:811 /15:1458 /16:12119 /17:6251 /18:10372
/19:20393 /20:28257 /21:27611 /22:37125 /23:35447 /24:197104
/25:66 /26:86 /27:112 /28:277 /29:72 /30:480
/31:52 /32:474
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2191 3555 bellsouth.net, inc.
18566 1870 1914 Covad Communications
10620 1576 1681 TVCABLE BOGOTA
7029 1542 1859 Windstream Communications Inc
8402 1381 1404 Corbina telecom
30036 1334 1372 Mediacom Communications Corp
11492 1104 1142 Cable One
1785 1054 1831 AppliedTheory Corporation
7011 1052 1173 Citizens Utilities
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 2:465 4:19 5:1 6:3 8:356
12:1956 14:535 15:13 16:3 17:7 20:10
23:37 24:1691 27:964 31:573 32:150 33:4
34:2 36:4 38:751 40:108 41:2695 42:49
44:3 46:992 47:3 49:264 50:434 52:13
55:5 56:2 57:48 58:888 59:492 60:365
61:1178 62:1108 63:1957 64:4100 65:2308 66:4033
67:1984 68:1278 69:3321 70:874 71:377 72:1879
73:1 74:2518 75:368 76:349 77:876 78:876
79:488 80:1134 81:855 82:511 83:605 84:628
85:1122 86:413 87:871 88:358 89:1615 90:268
91:4160 92:523 93:1376 94:1317 95:1014 96:444
97:278 98:923 99:37 101:210 103:342 106:70
107:59 108:51 109:1043 110:670 111:795 112:319
113:453 114:571 115:699 116:897 117:704 118:902
119:1209 120:335 121:699 122:1607 123:1024 124:1353
125:1389 128:245 129:182 130:166 131:580 132:112
133:21 134:215 135:54 136:214 137:139 138:288
139:135 140:495 141:292 142:391 143:421 144:489
145:64 146:473 147:225 148:694 149:264 150:152
151:193 152:446 153:177 154:6 155:387 156:207
157:361 158:150 159:466 160:324 161:206 162:336
163:179 164:511 165:405 166:538 167:434 168:742
169:148 170:865 171:85 172:1 173:1663 174:658
175:416 176:264 177:287 178:1049 180:1097 181:37
182:633 183:215 184:384 185:1 186:1496 187:673
188:927 189:858 190:5183 192:5944 193:5031 194:3556
195:3110 196:1257 197:156 198:3634 199:4142 200:5522
201:1647 202:8586 203:8493 204:4269 205:2380 206:2726
207:2836 208:4169 209:3546 210:2727 211:1467 212:2095
213:1790 214:782 215:90 216:4950 217:1610 218:564
219:339 220:1229 221:515 222:343 223:265
End of report
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