Routing Table Report 00:00 GMT Mon 22 Aug, 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: 372009
Prefixes after maximum aggregation: 167777
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 182708
Total ASes present in the Internet Routing Table: 38579
Prefixes per ASN: 9.64
Origin-only ASes present in the Internet Routing Table: 31996
Origin ASes announcing only one prefix: 15380
Transit ASes present in the Internet Routing Table: 5246
Transit-only ASes present in the Internet Routing Table: 148
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 4234
Unregistered ASNs in the Routing Table: 646
Number of 32-bit ASNs allocated by the RIRs: 1668
Number of 32-bit ASNs visible in the Routing Table: 1337
Prefixes from 32-bit ASNs in the Routing Table: 3091
Special use prefixes present in the Routing Table: 79
Prefixes being announced from unallocated address space: 110
Number of addresses announced to Internet: 2470459151
Equivalent to 147 /8s, 64 /16s and 55 /24s
Percentage of available address space announced: 66.7
Percentage of allocated address space announced: 66.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.2
Total number of prefixes smaller than registry allocations: 154437
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90203
Total APNIC prefixes after maximum aggregation: 29349
APNIC Deaggregation factor: 3.07
Prefixes being announced from the APNIC address blocks: 86819
Unique aggregates announced from the APNIC address blocks: 37739
APNIC Region origin ASes present in the Internet Routing Table: 4528
APNIC Prefixes per ASN: 19.17
APNIC Region origin ASes announcing only one prefix: 1258
APNIC Region transit ASes present in the Internet Routing Table: 716
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: 73
Number of APNIC addresses announced to Internet: 624543488
Equivalent to 37 /8s, 57 /16s and 199 /24s
Percentage of available APNIC address space announced: 79.2
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: 145739
Total ARIN prefixes after maximum aggregation: 75370
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 117286
Unique aggregates announced from the ARIN address blocks: 47083
ARIN Region origin ASes present in the Internet Routing Table: 14620
ARIN Prefixes per ASN: 8.02
ARIN Region origin ASes announcing only one prefix: 5607
ARIN Region transit ASes present in the Internet Routing Table: 1527
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 803861272
Equivalent to 47 /8s, 233 /16s and 243 /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: 89758
Total RIPE prefixes after maximum aggregation: 49890
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 82161
Unique aggregates announced from the RIPE address blocks: 53511
RIPE Region origin ASes present in the Internet Routing Table: 15913
RIPE Prefixes per ASN: 5.16
RIPE Region origin ASes announcing only one prefix: 7915
RIPE Region transit ASes present in the Internet Routing Table: 2534
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: 960
Number of RIPE addresses announced to Internet: 488372428
Equivalent to 29 /8s, 27 /16s and 248 /24s
Percentage of available RIPE address space announced: 78.7
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: 34624
Total LACNIC prefixes after maximum aggregation: 7686
LACNIC Deaggregation factor: 4.50
Prefixes being announced from the LACNIC address blocks: 33810
Unique aggregates announced from the LACNIC address blocks: 17351
LACNIC Region origin ASes present in the Internet Routing Table: 1501
LACNIC Prefixes per ASN: 22.52
LACNIC Region origin ASes announcing only one prefix: 444
LACNIC Region transit ASes present in the Internet Routing Table: 278
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 20
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 288
Number of LACNIC addresses announced to Internet: 87658760
Equivalent to 5 /8s, 57 /16s and 145 /24s
Percentage of available LACNIC address space announced: 58.1
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: 8388
Total AfriNIC prefixes after maximum aggregation: 2080
AfriNIC Deaggregation factor: 4.03
Prefixes being announced from the AfriNIC address blocks: 6472
Unique aggregates announced from the AfriNIC address blocks: 2084
AfriNIC Region origin ASes present in the Internet Routing Table: 484
AfriNIC Prefixes per ASN: 13.37
AfriNIC Region origin ASes announcing only one prefix: 156
AfriNIC Region transit ASes present in the Internet Routing Table: 102
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: 26899712
Equivalent to 1 /8s, 154 /16s and 117 /24s
Percentage of available AfriNIC address space announced: 40.1
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 1935 11054 645 Korea Telecom (KIX)
17974 1812 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1574 301 84 TPG Internet Pty Ltd
4755 1529 374 164 Videsh Sanchar Nigam Ltd. Aut
7552 1412 1064 7 Vietel Corporation
24560 1198 336 189 Bharti Airtel Ltd.
9829 1153 989 28 BSNL National Internet Backbo
9583 1076 79 496 Sify Limited
17488 1019 188 139 Hathway IP Over Cable Interne
4808 1011 2056 288 CNCGROUP IP network: China169
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 3584 3817 228 bellsouth.net, inc.
18566 1912 364 240 Covad Communications
1785 1820 681 124 AppliedTheory Corporation
7029 1616 1029 208 Windstream Communications Inc
4323 1613 1101 397 Time Warner Telecom
20115 1586 1537 630 Charter Communications
22773 1438 2903 97 Cox Communications, Inc.
19262 1405 4778 395 Verizon Global Networks
7018 1361 7084 891 AT&T WorldNet Services
2386 1232 516 892 AT&T Data Communications Serv
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 1039 798 193 KPNQwest Backbone AS
34984 541 107 183 Tellcom Iletisim Hizmetleri
9116 540 326 31 Goldenlines main autonomous s
3292 520 2080 404 TDC Tele Danmark
6830 513 1788 317 UPC Distribution Services
20940 480 137 372 Akamai Technologies European
8866 457 133 25 Bulgarian Telecommunication C
12479 456 593 7 Uni2 Autonomous System
3320 424 8151 370 Deutsche Telekom AG
29049 423 31 57 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 1591 294 163 TVCABLE BOGOTA
8151 1435 2751 353 Uninet S.A. de C.V.
28573 1259 996 67 Types of queries are: POCs, o
7303 1064 578 176 Telecom Argentina Stet-France
6503 749 450 76 AVANTEL, S.A.
14420 705 56 85 Types of queries are: POCs, o
22047 578 322 17 Types of queries are: POCs, o
10481 548 430 20 Prima S.A.
3816 534 232 97 COLOMBIA TELECOMUNICACIONES S
27947 528 53 54 Telconet S.A
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 809 145 58 LINKdotNET AS number
8452 670 445 11 TEDATA
15475 512 74 8 Nile Online
36992 302 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 244 519 14 Itissalat Al-MAGHRIB
33776 226 13 8 Starcomms Nigeria Limited
15706 219 32 6 Sudatel Internet Exchange Aut
12258 195 28 62 YEBO-AS
24835 179 78 10 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 3584 3817 228 bellsouth.net, inc.
23456 3091 736 1658 >>UNKNOWN<<
4766 1935 11054 645 Korea Telecom (KIX)
18566 1912 364 240 Covad Communications
1785 1820 681 124 AppliedTheory Corporation
17974 1812 516 31 PT TELEKOMUNIKASI INDONESIA
7029 1616 1029 208 Windstream Communications Inc
4323 1613 1101 397 Time Warner Telecom
10620 1591 294 163 TVCABLE BOGOTA
20115 1586 1537 630 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 1812 1781 PT TELEKOMUNIKASI INDONESIA
1785 1820 1696 AppliedTheory Corporation
18566 1912 1672 Covad Communications
7545 1574 1490 TPG Internet Pty Ltd
23456 3091 1433 >>UNKNOWN<<
10620 1591 1428 TVCABLE BOGOTA
7029 1616 1408 Windstream Communications Inc
7552 1412 1405 Vietel Corporation
4755 1529 1365 Videsh Sanchar Nigam Ltd. Aut
22773 1438 1341 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 /12:233
/13:460 /14:803 /15:1446 /16:12054 /17:6171 /18:10243
/19:20069 /20:27725 /21:27076 /22:35919 /23:34779 /24:193080
/25:77 /26:86 /27:113 /28:292 /29:123 /30:537
/31:92 /32:491
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2215 3584 bellsouth.net, inc.
18566 1868 1912 Covad Communications
23456 1521 3091 >>UNKNOWN<<
10620 1486 1591 TVCABLE BOGOTA
7029 1301 1616 Windstream Communications Inc
11492 1102 1148 Cable One
7011 1057 1160 Citizens Utilities
1785 1052 1820 AppliedTheory Corporation
22773 933 1438 Cox Communications, Inc.
30036 912 936 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:360 2:47 4:19 5:1 6:3 8:345
12:1959 13:1 14:518 15:15 16:3 17:5
20:10 23:27 24:1688 27:880 31:515 32:149
33:4 34:2 36:4 38:735 40:107 41:2513
42:45 44:3 46:1063 47:3 49:219 50:411
52:13 54:2 55:8 56:2 57:45 58:863
59:501 60:376 61:1180 62:1095 63:1957 64:4053
65:2303 66:3972 67:1951 68:1287 69:3205 70:825
71:372 72:1877 73:1 74:2486 75:341 76:347
77:865 78:711 79:489 80:1134 81:833 82:508
83:482 84:695 85:1084 86:514 87:847 88:341
89:1557 90:224 91:4054 92:526 93:1147 94:1353
95:876 96:423 97:267 98:940 99:37 101:79
103:217 106:69 107:32 108:81 109:1018 110:643
111:729 112:306 113:408 114:560 115:698 116:1013
117:680 118:875 119:1191 120:316 121:706 122:1592
123:985 124:1316 125:1320 128:246 129:179 130:171
131:579 132:118 133:21 134:214 135:53 136:204
137:137 138:295 139:129 140:487 141:277 142:390
143:448 144:488 145:58 146:463 147:228 148:689
149:252 150:202 151:190 152:441 153:185 154:5
155:401 156:200 157:331 158:134 159:458 160:320
161:207 162:329 163:166 164:516 165:397 166:535
167:434 168:746 169:154 170:846 171:82 172:1
173:1670 174:627 175:394 176:154 177:221 178:999
180:940 181:26 182:534 183:242 184:339 185:1
186:1370 187:743 188:936 189:928 190:5127 192:5953
193:5000 194:3552 195:3123 196:1239 197:127 198:3596
199:4060 200:5517 201:1488 202:8417 203:8475 204:4254
205:2355 206:2732 207:2811 208:4127 209:3507 210:2693
211:1464 212:2134 213:1780 214:764 215:70 216:4888
217:1608 218:545 219:355 220:1218 221:513 222:358
223:243
End of report
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