Routing Table Report 00:00 GMT Tue 20 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: 376300
Prefixes after maximum aggregation: 168979
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 185040
Total ASes present in the Internet Routing Table: 38816
Prefixes per ASN: 9.69
Origin-only ASes present in the Internet Routing Table: 32202
Origin ASes announcing only one prefix: 15468
Transit ASes present in the Internet Routing Table: 5199
Transit-only ASes present in the Internet Routing Table: 137
Average AS path length visible in the Internet Routing Table: 3.8
Max AS path length visible: 25
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 4603
Unregistered ASNs in the Routing Table: 755
Number of 32-bit ASNs allocated by the RIRs: 1750
Number of 32-bit ASNs visible in the Routing Table: 1415
Prefixes from 32-bit ASNs in the Routing Table: 3263
Special use prefixes present in the Routing Table: 83
Prefixes being announced from unallocated address space: 99
Number of addresses announced to Internet: 2478694807
Equivalent to 147 /8s, 189 /16s and 225 /24s
Percentage of available address space announced: 66.9
Percentage of allocated address space announced: 66.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.3
Total number of prefixes smaller than registry allocations: 155851
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 91887
Total APNIC prefixes after maximum aggregation: 29545
APNIC Deaggregation factor: 3.11
Prefixes being announced from the APNIC address blocks: 88520
Unique aggregates announced from the APNIC address blocks: 38151
APNIC Region origin ASes present in the Internet Routing Table: 4551
APNIC Prefixes per ASN: 19.45
APNIC Region origin ASes announcing only one prefix: 1266
APNIC Region transit ASes present in the Internet Routing Table: 717
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 22
Number of APNIC region 32-bit ASNs visible in the Routing Table: 88
Number of APNIC addresses announced to Internet: 627636480
Equivalent to 37 /8s, 104 /16s and 249 /24s
Percentage of available APNIC address space announced: 79.6
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: 146778
Total ARIN prefixes after maximum aggregation: 75712
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 118408
Unique aggregates announced from the ARIN address blocks: 47925
ARIN Region origin ASes present in the Internet Routing Table: 14665
ARIN Prefixes per ASN: 8.07
ARIN Region origin ASes announcing only one prefix: 5632
ARIN Region transit ASes present in the Internet Routing Table: 1510
Average ARIN Region AS path length visible: 3.5
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: 804891804
Equivalent to 47 /8s, 249 /16s and 172 /24s
Percentage of available ARIN address space announced: 64.0
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: 90255
Total RIPE prefixes after maximum aggregation: 50287
RIPE Deaggregation factor: 1.79
Prefixes being announced from the RIPE address blocks: 82412
Unique aggregates announced from the RIPE address blocks: 53972
RIPE Region origin ASes present in the Internet Routing Table: 15985
RIPE Prefixes per ASN: 5.16
RIPE Region origin ASes announcing only one prefix: 7960
RIPE Region transit ASes present in the Internet Routing Table: 2517
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 25
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1006
Number of RIPE addresses announced to Internet: 489540556
Equivalent to 29 /8s, 45 /16s and 203 /24s
Percentage of available RIPE address space announced: 78.9
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: 35451
Total LACNIC prefixes after maximum aggregation: 7786
LACNIC Deaggregation factor: 4.55
Prefixes being announced from the LACNIC address blocks: 34653
Unique aggregates announced from the LACNIC address blocks: 17859
LACNIC Region origin ASes present in the Internet Routing Table: 1527
LACNIC Prefixes per ASN: 22.69
LACNIC Region origin ASes announcing only one prefix: 455
LACNIC Region transit ASes present in the Internet Routing Table: 275
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 306
Number of LACNIC addresses announced to Internet: 89134088
Equivalent to 5 /8s, 80 /16s and 20 /24s
Percentage of available LACNIC address space announced: 59.0
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: 8469
Total AfriNIC prefixes after maximum aggregation: 2049
AfriNIC Deaggregation factor: 4.13
Prefixes being announced from the AfriNIC address blocks: 6540
Unique aggregates announced from the AfriNIC address blocks: 2145
AfriNIC Region origin ASes present in the Internet Routing Table: 488
AfriNIC Prefixes per ASN: 13.40
AfriNIC Region origin ASes announcing only one prefix: 155
AfriNIC Region transit ASes present in the Internet Routing Table: 104
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 3
Number of AfriNIC addresses announced to Internet: 27239680
Equivalent to 1 /8s, 159 /16s and 165 /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 2002 516 31 PT TELEKOMUNIKASI INDONESIA
4766 1946 11064 651 Korea Telecom (KIX)
7545 1594 303 85 TPG Internet Pty Ltd
4755 1552 639 169 Videsh Sanchar Nigam Ltd. Aut
7552 1416 1064 7 Vietel Corporation
24560 1182 337 194 Bharti Airtel Ltd.
9829 1158 989 28 BSNL National Internet Backbo
9583 1084 80 503 Sify Limited
4808 1046 2076 295 CNCGROUP IP network: China169
18101 951 118 140 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 3561 3817 226 bellsouth.net, inc.
18566 1912 364 237 Covad Communications
1785 1825 680 122 AppliedTheory Corporation
4323 1623 1101 393 Time Warner Telecom
7029 1604 1012 194 Windstream Communications Inc
20115 1594 1542 634 Charter Communications
22773 1456 2907 99 Cox Communications, Inc.
30036 1428 264 679 Mediacom Communications Corp
19262 1394 4724 399 Verizon Global Networks
7018 1337 7067 876 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
286 1071 824 200 KPNQwest Backbone AS
34984 561 108 180 Tellcom Iletisim Hizmetleri
9116 540 326 31 Goldenlines main autonomous s
20940 528 172 410 Akamai Technologies European
6830 526 1811 323 UPC Distribution Services
3292 524 2081 405 TDC Tele Danmark
12479 472 594 8 Uni2 Autonomous System
8866 461 133 26 Bulgarian Telecommunication C
3320 436 8153 377 Deutsche Telekom AG
29049 423 31 56 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 1679 309 156 TVCABLE BOGOTA
8151 1448 2783 354 Uninet S.A. de C.V.
28573 1343 1012 69 Types of queries are: POCs, o
7303 1156 678 170 Telecom Argentina Stet-France
14420 734 58 88 Types of queries are: POCs, o
6503 591 450 70 AVANTEL, S.A.
27947 580 56 78 Telconet S.A
22047 579 322 17 Types of queries are: POCs, o
10481 548 430 20 Prima S.A.
3816 532 232 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 43 LINKdotNET AS number
8452 698 445 11 TEDATA
15475 449 74 8 Nile Online
36992 293 415 14 Etisalat MISR
3741 274 938 229 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
33776 239 13 8 Starcomms Nigeria Limited
15706 219 32 6 Sudatel Internet Exchange Aut
12258 199 28 59 YEBO-AS
29571 192 14 33 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 3561 3817 226 bellsouth.net, inc.
23456 3263 771 1757 >>UNKNOWN<<
17974 2002 516 31 PT TELEKOMUNIKASI INDONESIA
4766 1946 11064 651 Korea Telecom (KIX)
18566 1912 364 237 Covad Communications
1785 1825 680 122 AppliedTheory Corporation
10620 1679 309 156 TVCABLE BOGOTA
4323 1623 1101 393 Time Warner Telecom
7029 1604 1012 194 Windstream Communications Inc
7545 1594 303 85 TPG Internet Pty Ltd
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 2002 1971 PT TELEKOMUNIKASI INDONESIA
1785 1825 1703 AppliedTheory Corporation
18566 1912 1675 Covad Communications
10620 1679 1523 TVCABLE BOGOTA
7545 1594 1509 TPG Internet Pty Ltd
23456 3263 1506 >>UNKNOWN<<
7029 1604 1410 Windstream Communications Inc
7552 1416 1409 Vietel Corporation
4755 1552 1383 Videsh Sanchar Nigam Ltd. Aut
22773 1456 1357 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 1239 Sprint
26973 UNALLOCATED 12.39.155.0/24 1239 Sprint
26973 UNALLOCATED 12.39.159.0/24 1239 Sprint
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 /8:19 /9:12 /10:27 /11:81 /12:235
/13:464 /14:808 /15:1449 /16:12087 /17:6228 /18:10309
/19:20287 /20:28173 /21:27542 /22:36685 /23:35337 /24:194747
/25:75 /26:88 /27:123 /28:292 /29:105 /30:552
/31:73 /32:502
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2198 3561 bellsouth.net, inc.
18566 1868 1912 Covad Communications
10620 1574 1679 TVCABLE BOGOTA
23456 1565 3263 >>UNKNOWN<<
30036 1386 1428 Mediacom Communications Corp
7029 1308 1604 Windstream Communications Inc
11492 1114 1152 Cable One
7011 1058 1183 Citizens Utilities
1785 1052 1825 AppliedTheory Corporation
22773 945 1456 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:372 2:56 4:19 5:1 6:3 8:352
12:1959 13:1 14:542 15:13 16:3 17:5
20:10 23:34 24:1683 27:940 31:531 32:149
33:4 34:2 36:4 38:745 40:108 41:2586
42:48 44:3 46:989 47:3 49:250 50:422
52:13 54:2 55:6 56:2 57:45 58:879
59:492 60:376 61:1181 62:1095 63:1962 64:4092
65:2298 66:3970 67:1979 68:1276 69:3299 70:829
71:377 72:1889 73:1 74:2488 75:339 76:346
77:871 78:667 79:483 80:1125 81:845 82:518
83:504 84:644 85:1090 86:417 87:873 88:354
89:1553 90:234 91:4113 92:529 93:1154 94:1327
95:795 96:440 97:272 98:945 99:37 101:209
103:305 106:94 107:48 108:84 109:1026 110:675
111:784 112:312 113:445 114:568 115:693 116:918
117:700 118:897 119:1178 120:338 121:703 122:1605
123:1021 124:1358 125:1396 128:245 129:181 130:165
131:578 132:120 133:21 134:216 135:53 136:212
137:137 138:288 139:121 140:493 141:286 142:392
143:406 144:483 145:60 146:468 147:225 148:689
149:251 150:153 151:190 152:452 153:177 154:6
155:394 156:201 157:357 158:144 159:462 160:325
161:207 162:336 163:178 164:508 165:404 166:538
167:434 168:746 169:147 170:859 171:84 172:4
173:1657 174:637 175:407 176:177 177:258 178:1001
180:1072 181:26 182:627 183:238 184:374 185:1
186:1453 187:675 188:939 189:874 190:5149 192:5942
193:5021 194:3546 195:3088 196:1257 197:143 198:3596
199:4128 200:5525 201:1639 202:8561 203:8496 204:4253
205:2357 206:2738 207:2841 208:4161 209:3544 210:2718
211:1470 212:2135 213:1781 214:783 215:76 216:4910
217:1614 218:555 219:334 220:1229 221:515 222:343
223:267
End of report
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