Routing Table Report 00:00 GMT Mon 31 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: 382963
Prefixes after maximum aggregation: 167275
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 180995
Total ASes present in the Internet Routing Table: 39174
Prefixes per ASN: 9.78
Origin-only ASes present in the Internet Routing Table: 32339
Origin ASes announcing only one prefix: 15487
Transit ASes present in the Internet Routing Table: 5272
Transit-only ASes present in the Internet Routing Table: 140
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 25
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 5228
Unregistered ASNs in the Routing Table: 858
Number of 32-bit ASNs allocated by the RIRs: 1917
Number of 32-bit ASNs visible in the Routing Table: 1563
Prefixes from 32-bit ASNs in the Routing Table: 3626
Special use prefixes present in the Routing Table: 84
Prefixes being announced from unallocated address space: 86
Number of addresses announced to Internet: 2319730833
Equivalent to 138 /8s, 68 /16s and 72 /24s
Percentage of available address space announced: 62.6
Percentage of allocated address space announced: 62.6
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: 159967
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92733
Total APNIC prefixes after maximum aggregation: 29838
APNIC Deaggregation factor: 3.11
Prefixes being announced from the APNIC address blocks: 89287
Unique aggregates announced from the APNIC address blocks: 36803
APNIC Region origin ASes present in the Internet Routing Table: 4578
APNIC Prefixes per ASN: 19.50
APNIC Region origin ASes announcing only one prefix: 1276
APNIC Region transit ASes present in the Internet Routing Table: 722
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 96
Number of APNIC addresses announced to Internet: 613286400
Equivalent to 36 /8s, 142 /16s and 2 /24s
Percentage of available APNIC address space announced: 77.8
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: 148437
Total ARIN prefixes after maximum aggregation: 76402
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 120140
Unique aggregates announced from the ARIN address blocks: 45563
ARIN Region origin ASes present in the Internet Routing Table: 14722
ARIN Prefixes per ASN: 8.16
ARIN Region origin ASes announcing only one prefix: 5626
ARIN Region transit ASes present in the Internet Routing Table: 1546
Average ARIN Region AS path length visible: 3.8
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: 666998040
Equivalent to 39 /8s, 193 /16s and 149 /24s
Percentage of available ARIN address space announced: 53.0
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: 93210
Total RIPE prefixes after maximum aggregation: 50986
RIPE Deaggregation factor: 1.83
Prefixes being announced from the RIPE address blocks: 84966
Unique aggregates announced from the RIPE address blocks: 53004
RIPE Region origin ASes present in the Internet Routing Table: 16091
RIPE Prefixes per ASN: 5.28
RIPE Region origin ASes announcing only one prefix: 7978
RIPE Region transit ASes present in the Internet Routing Table: 2536
Average RIPE Region AS path length visible: 4.5
Max RIPE Region AS path length visible: 24
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1096
Number of RIPE addresses announced to Internet: 475856068
Equivalent to 28 /8s, 92 /16s and 252 /24s
Percentage of available RIPE address space announced: 76.7
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: 36015
Total LACNIC prefixes after maximum aggregation: 7932
LACNIC Deaggregation factor: 4.54
Prefixes being announced from the LACNIC address blocks: 35458
Unique aggregates announced from the LACNIC address blocks: 18142
LACNIC Region origin ASes present in the Internet Routing Table: 1541
LACNIC Prefixes per ASN: 23.01
LACNIC Region origin ASes announcing only one prefix: 450
LACNIC Region transit ASes present in the Internet Routing Table: 282
Average LACNIC Region AS path length visible: 4.7
Max LACNIC Region AS path length visible: 25
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 355
Number of LACNIC addresses announced to Internet: 92621568
Equivalent to 5 /8s, 133 /16s and 75 /24s
Percentage of available LACNIC address space announced: 61.3
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: 8765
Total AfriNIC prefixes after maximum aggregation: 2041
AfriNIC Deaggregation factor: 4.29
Prefixes being announced from the AfriNIC address blocks: 6856
Unique aggregates announced from the AfriNIC address blocks: 1986
AfriNIC Region origin ASes present in the Internet Routing Table: 495
AfriNIC Prefixes per ASN: 13.85
AfriNIC Region origin ASes announcing only one prefix: 157
AfriNIC Region transit ASes present in the Internet Routing Table: 111
Average AfriNIC Region AS path length visible: 4.2
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: 27907328
Equivalent to 1 /8s, 169 /16s and 213 /24s
Percentage of available AfriNIC address space announced: 41.6
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 1941 11088 658 Korea Telecom (KIX)
17974 1868 519 33 PT TELEKOMUNIKASI INDONESIA
7545 1610 303 86 TPG Internet Pty Ltd
4755 1532 377 171 Videsh Sanchar Nigam Ltd. Aut
7552 1393 1064 8 Vietel Corporation
9829 1165 989 28 BSNL National Internet Backbo
4808 1107 2119 316 CNCGROUP IP network: China169
9583 1091 80 499 Sify Limited
24560 964 342 218 Bharti Airtel Ltd.
18101 954 166 150 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 3543 3814 220 bellsouth.net, inc.
7029 2361 1041 206 Windstream Communications Inc
18566 2096 383 177 Covad Communications
1785 1843 680 122 AppliedTheory Corporation
4323 1623 1093 388 Time Warner Telecom
20115 1590 1544 623 Charter Communications
22773 1459 2907 100 Cox Communications, Inc.
19262 1395 4728 400 Verizon Global Networks
30036 1395 253 668 Mediacom Communications Corp
7018 1315 7046 859 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 1503 352 13 Corbina telecom
286 1080 827 201 KPNQwest Backbone AS
6830 654 1927 415 UPC Distribution Services
34984 590 108 180 Tellcom Iletisim Hizmetleri
3292 580 2074 410 TDC Tele Danmark
20940 553 185 425 Akamai Technologies European
9116 540 326 31 Goldenlines main autonomous s
3320 506 8169 386 Deutsche Telekom AG
12479 479 596 9 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 1699 314 156 TVCABLE BOGOTA
8151 1457 2908 346 Uninet S.A. de C.V.
28573 1456 1040 72 Types of queries are: POCs, o
7303 1231 748 177 Telecom Argentina Stet-France
27947 601 72 84 Telconet S.A
22047 580 322 17 Types of queries are: POCs, o
6503 578 434 70 AVANTEL, S.A.
7738 552 1050 31 Telecomunicacoes da Bahia S.A
10481 548 430 20 Prima S.A.
3816 537 233 95 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
8452 849 446 12 TEDATA
24863 800 146 34 LINKdotNET AS number
15475 441 74 8 Nile Online
36992 297 415 20 Etisalat MISR
3741 280 939 229 The Internet Solution
6713 244 519 14 Itissalat Al-MAGHRIB
15706 240 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
29571 219 18 14 Ci Telecom Autonomous system
12258 197 28 58 YEBO-AS
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 3543 3814 220 bellsouth.net, inc.
7029 2361 1041 206 Windstream Communications Inc
18566 2096 383 177 Covad Communications
4766 1941 11088 658 Korea Telecom (KIX)
17974 1868 519 33 PT TELEKOMUNIKASI INDONESIA
1785 1843 680 122 AppliedTheory Corporation
10620 1699 314 156 TVCABLE BOGOTA
4323 1623 1093 388 Time Warner Telecom
7545 1610 303 86 TPG Internet Pty Ltd
20115 1590 1544 623 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
7029 2361 2155 Windstream Communications Inc
18566 2096 1919 Covad Communications
17974 1868 1835 PT TELEKOMUNIKASI INDONESIA
1785 1843 1721 AppliedTheory Corporation
10620 1699 1543 TVCABLE BOGOTA
7545 1610 1524 TPG Internet Pty Ltd
8402 1503 1490 Corbina telecom
7552 1393 1385 Vietel Corporation
28573 1456 1384 Types of queries are: POCs, o
4755 1532 1361 Videsh Sanchar Nigam Ltd. Aut
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 37345 MEDALLION Communications
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 /12:236
/13:465 /14:814 /15:1457 /16:12144 /17:6323 /18:10418
/19:20491 /20:28691 /21:27909 /22:37517 /23:35716 /24:198989
/25:54 /26:70 /27:104 /28:274 /29:104 /30:482
/31:53 /32:512
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2183 3543 bellsouth.net, inc.
18566 2045 2096 Covad Communications
7029 2017 2361 Windstream Communications Inc
10620 1594 1699 TVCABLE BOGOTA
8402 1480 1503 Corbina telecom
30036 1356 1395 Mediacom Communications Corp
11492 1118 1156 Cable One
1785 1056 1843 AppliedTheory Corporation
7011 1050 1168 Citizens Utilities
22773 947 1459 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:416 2:492 4:19 5:1 6:3 8:361
12:1949 13:1 14:543 15:11 16:3 17:7
20:9 23:60 24:1686 27:973 31:652 32:146
33:2 34:2 36:4 38:759 39:1 40:110
41:2856 42:53 44:3 46:1019 47:3 49:296
50:443 52:13 55:5 56:2 57:50 58:887
59:490 60:364 61:1178 62:1097 63:1972 64:4080
65:2307 66:4300 67:2018 68:1328 69:3309 70:928
71:383 72:1831 73:1 74:2659 75:405 76:326
77:880 78:873 79:475 80:1142 81:844 82:532
83:532 84:627 85:1132 86:411 87:893 88:359
89:1628 90:237 91:4255 92:531 93:1541 94:1307
95:1087 96:438 97:284 98:936 99:37 101:220
103:410 106:70 107:78 108:76 109:1060 110:666
111:780 112:334 113:486 114:620 115:710 116:910
117:721 118:915 119:1264 120:339 121:713 122:1570
123:1022 124:1354 125:1362 128:244 129:192 130:162
131:628 132:148 133:21 134:221 135:51 136:213
137:140 138:286 139:136 140:483 141:311 142:392
143:422 144:495 145:64 146:463 147:228 148:691
149:267 150:166 151:194 152:446 153:178 154:7
155:389 156:208 157:329 158:154 159:484 160:328
161:214 162:371 163:173 164:511 165:386 166:538
167:434 168:739 169:147 170:880 171:86 172:4
173:1735 174:680 175:434 176:282 177:365 178:1089
180:1131 181:36 182:659 183:221 184:383 185:1
186:1298 187:710 188:955 189:871 190:5151 192:5940
193:5059 194:3583 195:3138 196:1250 197:167 198:3626
199:4178 200:5517 201:1696 202:8562 203:8486 204:4299
205:2367 206:2699 207:2836 208:4035 209:3605 210:2730
211:1465 212:2134 213:1789 214:798 215:95 216:4929
217:1606 218:569 219:343 220:1255 221:515 222:344
223:272
End of report
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