Routing Table Report 00:00 GMT Mon 12 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: 375088
Prefixes after maximum aggregation: 168528
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 178991
Total ASes present in the Internet Routing Table: 38737
Prefixes per ASN: 9.68
Origin-only ASes present in the Internet Routing Table: 32191
Origin ASes announcing only one prefix: 15442
Transit ASes present in the Internet Routing Table: 5147
Transit-only ASes present in the Internet Routing Table: 130
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 36
Max AS path prepend of ASN (22394) 33
Prefixes from unregistered ASNs in the Routing Table: 4446
Unregistered ASNs in the Routing Table: 710
Number of 32-bit ASNs allocated by the RIRs: 1720
Number of 32-bit ASNs visible in the Routing Table: 1399
Prefixes from 32-bit ASNs in the Routing Table: 3208
Special use prefixes present in the Routing Table: 82
Prefixes being announced from unallocated address space: 102
Number of addresses announced to Internet: 2307183510
Equivalent to 137 /8s, 132 /16s and 211 /24s
Percentage of available address space announced: 62.2
Percentage of allocated address space announced: 62.2
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: 155311
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 91743
Total APNIC prefixes after maximum aggregation: 29474
APNIC Deaggregation factor: 3.11
Prefixes being announced from the APNIC address blocks: 88358
Unique aggregates announced from the APNIC address blocks: 36837
APNIC Region origin ASes present in the Internet Routing Table: 4545
APNIC Prefixes per ASN: 19.44
APNIC Region origin ASes announcing only one prefix: 1262
APNIC Region transit ASes present in the Internet Routing Table: 712
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 83
Number of APNIC addresses announced to Internet: 610044672
Equivalent to 36 /8s, 92 /16s and 139 /24s
Percentage of available APNIC address space announced: 77.4
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: 146629
Total ARIN prefixes after maximum aggregation: 75481
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 118103
Unique aggregates announced from the ARIN address blocks: 44787
ARIN Region origin ASes present in the Internet Routing Table: 14653
ARIN Prefixes per ASN: 8.06
ARIN Region origin ASes announcing only one prefix: 5622
ARIN Region transit ASes present in the Internet Routing Table: 1509
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 36
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 667329692
Equivalent to 39 /8s, 198 /16s and 164 /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: 89951
Total RIPE prefixes after maximum aggregation: 50160
RIPE Deaggregation factor: 1.79
Prefixes being announced from the RIPE address blocks: 82204
Unique aggregates announced from the RIPE address blocks: 52684
RIPE Region origin ASes present in the Internet Routing Table: 15959
RIPE Prefixes per ASN: 5.15
RIPE Region origin ASes announcing only one prefix: 7948
RIPE Region transit ASes present in the Internet Routing Table: 2476
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 24
Number of RIPE region 32-bit ASNs visible in the Routing Table: 996
Number of RIPE addresses announced to Internet: 473941964
Equivalent to 28 /8s, 63 /16s and 199 /24s
Percentage of available RIPE address space announced: 76.3
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: 35047
Total LACNIC prefixes after maximum aggregation: 7779
LACNIC Deaggregation factor: 4.51
Prefixes being announced from the LACNIC address blocks: 34287
Unique aggregates announced from the LACNIC address blocks: 17703
LACNIC Region origin ASes present in the Internet Routing Table: 1522
LACNIC Prefixes per ASN: 22.53
LACNIC Region origin ASes announcing only one prefix: 455
LACNIC Region transit ASes present in the Internet Routing Table: 274
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 304
Number of LACNIC addresses announced to Internet: 88357128
Equivalent to 5 /8s, 68 /16s and 57 /24s
Percentage of available LACNIC address space announced: 58.5
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: 8313
Total AfriNIC prefixes after maximum aggregation: 2056
AfriNIC Deaggregation factor: 4.04
Prefixes being announced from the AfriNIC address blocks: 6424
Unique aggregates announced from the AfriNIC address blocks: 2017
AfriNIC Region origin ASes present in the Internet Routing Table: 481
AfriNIC Prefixes per ASN: 13.36
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: 4.0
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: 27244032
Equivalent to 1 /8s, 159 /16s and 182 /24s
Percentage of available AfriNIC address space announced: 40.6
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
17974 1983 516 31 PT TELEKOMUNIKASI INDONESIA
4766 1943 11039 648 Korea Telecom (KIX)
7545 1585 301 83 TPG Internet Pty Ltd
4755 1543 638 168 Videsh Sanchar Nigam Ltd. Aut
7552 1415 1064 7 Vietel Corporation
24560 1178 336 193 Bharti Airtel Ltd.
9829 1149 989 28 BSNL National Internet Backbo
9583 1079 80 503 Sify Limited
17488 1004 192 158 Hathway IP Over Cable Interne
18101 949 118 139 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 3566 3817 226 bellsouth.net, inc.
18566 1912 364 237 Covad Communications
1785 1822 680 123 AppliedTheory Corporation
7029 1627 1037 210 Windstream Communications Inc
4323 1622 1101 394 Time Warner Telecom
20115 1592 1541 632 Charter Communications
22773 1452 2907 99 Cox Communications, Inc.
19262 1395 4724 399 Verizon Global Networks
7018 1339 7068 877 AT&T WorldNet Services
30036 1328 244 688 Mediacom Communications Corp
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 1068 824 198 KPNQwest Backbone AS
34984 544 107 178 Tellcom Iletisim Hizmetleri
9116 540 326 31 Goldenlines main autonomous s
6830 527 1811 322 UPC Distribution Services
3292 524 2080 404 TDC Tele Danmark
20940 506 156 393 Akamai Technologies European
12479 468 594 8 Uni2 Autonomous System
8866 460 133 26 Bulgarian Telecommunication C
3320 431 8152 375 Deutsche Telekom AG
29049 424 31 55 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 1661 305 161 TVCABLE BOGOTA
8151 1437 2766 353 Uninet S.A. de C.V.
28573 1299 1003 71 Types of queries are: POCs, o
7303 1051 578 166 Telecom Argentina Stet-France
14420 715 57 88 Types of queries are: POCs, o
6503 591 450 70 AVANTEL, S.A.
22047 579 322 17 Types of queries are: POCs, o
27947 578 56 77 Telconet S.A
10481 548 430 20 Prima S.A.
3816 538 232 99 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 754 147 42 LINKdotNET AS number
8452 639 445 11 TEDATA
15475 512 74 8 Nile Online
36992 301 415 14 Etisalat MISR
3741 267 938 228 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
15706 219 32 6 Sudatel Internet Exchange Aut
33776 204 13 14 Starcomms Nigeria Limited
12258 194 28 63 YEBO-AS
29571 191 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 3566 3817 226 bellsouth.net, inc.
23456 3208 761 1746 >>UNKNOWN<<
17974 1983 516 31 PT TELEKOMUNIKASI INDONESIA
4766 1943 11039 648 Korea Telecom (KIX)
18566 1912 364 237 Covad Communications
1785 1822 680 123 AppliedTheory Corporation
10620 1661 305 161 TVCABLE BOGOTA
7029 1627 1037 210 Windstream Communications Inc
4323 1622 1101 394 Time Warner Telecom
20115 1592 1541 632 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 1983 1952 PT TELEKOMUNIKASI INDONESIA
1785 1822 1699 AppliedTheory Corporation
18566 1912 1675 Covad Communications
7545 1585 1502 TPG Internet Pty Ltd
10620 1661 1500 TVCABLE BOGOTA
23456 3208 1462 >>UNKNOWN<<
7029 1627 1417 Windstream Communications Inc
7552 1415 1408 Vietel Corporation
4755 1543 1375 Videsh Sanchar Nigam Ltd. Aut
22773 1452 1353 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 /8:20 /9:12 /10:27 /11:81 /12:234
/13:463 /14:806 /15:1448 /16:12079 /17:6214 /18:10307
/19:20269 /20:27978 /21:27416 /22:36455 /23:35196 /24:194280
/25:78 /26:89 /27:123 /28:284 /29:106 /30:552
/31:72 /32:499
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2203 3566 bellsouth.net, inc.
18566 1868 1912 Covad Communications
23456 1565 3208 >>UNKNOWN<<
10620 1556 1661 TVCABLE BOGOTA
7029 1309 1627 Windstream Communications Inc
30036 1291 1328 Mediacom Communications Corp
11492 1111 1157 Cable One
7011 1058 1183 Citizens Utilities
1785 1051 1822 AppliedTheory Corporation
22773 941 1452 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:374 2:50 4:19 5:1 6:3 8:350
12:1954 13:1 14:533 15:13 16:3 17:5
20:10 23:32 24:1674 27:941 31:518 32:149
33:3 34:2 36:2 38:740 40:107 41:2514
42:43 44:3 46:982 47:3 49:238 50:413
52:13 54:2 55:6 56:2 57:44 58:875
59:494 60:376 61:1175 62:1094 63:1964 64:4076
65:2304 66:3971 67:1984 68:1277 69:3277 70:828
71:377 72:1887 73:1 74:2479 75:340 76:347
77:870 78:669 79:485 80:1129 81:844 82:514
83:497 84:702 85:1093 86:419 87:867 88:351
89:1554 90:232 91:4085 92:522 93:1136 94:1343
95:801 96:425 97:271 98:942 99:37 100:1
101:205 103:282 106:71 107:42 108:82 109:1024
110:670 111:747 112:319 113:442 114:565 115:719
116:944 117:699 118:892 119:1193 120:336 121:702
122:1608 123:1015 124:1348 125:1403 128:253 129:184
130:166 131:582 132:119 133:21 134:216 135:52
136:206 137:138 138:294 139:129 140:493 141:289
142:392 143:411 144:491 145:61 146:466 147:226
148:686 149:250 150:153 151:189 152:444 153:179
154:6 155:393 156:202 157:355 158:143 159:458
160:323 161:207 162:333 163:173 164:513 165:401
166:538 167:433 168:742 169:146 170:849 171:84
172:1 173:1663 174:637 175:402 176:173 177:246
178:1005 180:1034 181:24 182:612 183:234 184:357
185:1 186:1419 187:678 188:939 189:867 190:5154
192:5961 193:5009 194:3544 195:3073 196:1237 197:147
198:3601 199:4121 200:5525 201:1634 202:8517 203:8527
204:4253 205:2348 206:2743 207:2839 208:4153 209:3546
210:2713 211:1467 212:2139 213:1772 214:769 215:76
216:4903 217:1601 218:554 219:347 220:1227 221:516
222:353 223:260
End of report
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