Routing Table Report 00:00 GMT Sat 23 Jul, 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: 370746
Prefixes after maximum aggregation: 166980
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 180738
Total ASes present in the Internet Routing Table: 38308
Prefixes per ASN: 9.68
Origin-only ASes present in the Internet Routing Table: 31808
Origin ASes announcing only one prefix: 15256
Transit ASes present in the Internet Routing Table: 5216
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: 39
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 4041
Unregistered ASNs in the Routing Table: 579
Number of 32-bit ASNs allocated by the RIRs: 1585
Number of 32-bit ASNs visible in the Routing Table: 1284
Prefixes from 32-bit ASNs in the Routing Table: 2961
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 121
Number of addresses announced to Internet: 2485093191
Equivalent to 148 /8s, 31 /16s and 131 /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: 91.1
Total number of prefixes smaller than registry allocations: 154416
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89280
Total APNIC prefixes after maximum aggregation: 29225
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 85966
Unique aggregates announced from the APNIC address blocks: 37461
APNIC Region origin ASes present in the Internet Routing Table: 4506
APNIC Prefixes per ASN: 19.08
APNIC Region origin ASes announcing only one prefix: 1263
APNIC Region transit ASes present in the Internet Routing Table: 707
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: 62
Number of APNIC addresses announced to Internet: 622355457
Equivalent to 37 /8s, 24 /16s and 100 /24s
Percentage of available APNIC address space announced: 78.9
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
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: 145426
Total ARIN prefixes after maximum aggregation: 75138
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 116937
Unique aggregates announced from the ARIN address blocks: 46584
ARIN Region origin ASes present in the Internet Routing Table: 14525
ARIN Prefixes per ASN: 8.05
ARIN Region origin ASes announcing only one prefix: 5560
ARIN Region transit ASes present in the Internet Routing Table: 1515
Average ARIN Region AS path length visible: 3.9
Max ARIN Region AS path length visible: 35
Number of ARIN region 32-bit ASNs visible in the Routing Table: 13
Number of ARIN addresses announced to Internet: 802794648
Equivalent to 47 /8s, 217 /16s and 172 /24s
Percentage of available ARIN address space announced: 63.8
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: 90005
Total RIPE prefixes after maximum aggregation: 49694
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 82645
Unique aggregates announced from the RIPE address blocks: 52757
RIPE Region origin ASes present in the Internet Routing Table: 15840
RIPE Prefixes per ASN: 5.22
RIPE Region origin ASes announcing only one prefix: 7839
RIPE Region transit ASes present in the Internet Routing Table: 2530
Average RIPE Region AS path length visible: 4.1
Max RIPE Region AS path length visible: 39
Number of RIPE region 32-bit ASNs visible in the Routing Table: 933
Number of RIPE addresses announced to Internet: 484655756
Equivalent to 28 /8s, 227 /16s and 66 /24s
Percentage of available RIPE address space announced: 78.1
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: 34344
Total LACNIC prefixes after maximum aggregation: 7682
LACNIC Deaggregation factor: 4.47
Prefixes being announced from the LACNIC address blocks: 33481
Unique aggregates announced from the LACNIC address blocks: 17110
LACNIC Region origin ASes present in the Internet Routing Table: 1490
LACNIC Prefixes per ASN: 22.47
LACNIC Region origin ASes announcing only one prefix: 443
LACNIC Region transit ASes present in the Internet Routing Table: 273
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: 272
Number of LACNIC addresses announced to Internet: 86450952
Equivalent to 5 /8s, 39 /16s and 35 /24s
Percentage of available LACNIC address space announced: 57.3
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: 8438
Total AfriNIC prefixes after maximum aggregation: 1978
AfriNIC Deaggregation factor: 4.27
Prefixes being announced from the AfriNIC address blocks: 6539
Unique aggregates announced from the AfriNIC address blocks: 2001
AfriNIC Region origin ASes present in the Internet Routing Table: 474
AfriNIC Prefixes per ASN: 13.80
AfriNIC Region origin ASes announcing only one prefix: 151
AfriNIC Region transit ASes present in the Internet Routing Table: 105
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: 24454400
Equivalent to 1 /8s, 117 /16s and 37 /24s
Percentage of available AfriNIC address space announced: 36.4
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 1911 11052 634 Korea Telecom (KIX)
17974 1795 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1554 301 85 TPG Internet Pty Ltd
4755 1506 375 170 Videsh Sanchar Nigam Ltd. Aut
7552 1298 1064 7 Vietel Corporation
24560 1157 336 187 Bharti Airtel Ltd.
9829 1108 923 47 BSNL National Internet Backbo
9583 1070 79 506 Sify Limited
4808 1018 2057 287 CNCGROUP IP network: China169
17488 982 187 107 Hathway IP Over Cable Interne
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 3614 3818 238 bellsouth.net, inc.
18566 1957 372 223 Covad Communications
1785 1812 681 123 AppliedTheory Corporation
4323 1614 1098 401 Time Warner Telecom
20115 1590 1538 623 Charter Communications
19262 1412 4760 392 Verizon Global Networks
7029 1389 1031 207 Windstream Communications Inc
7018 1374 7085 901 AT&T WorldNet Services
22773 1353 2897 89 Cox Communications, Inc.
2386 1259 521 907 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 1030 797 186 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 534 106 185 Tellcom Iletisim Hizmetleri
3292 521 2078 403 TDC Tele Danmark
6830 514 1788 317 UPC Distribution Services
20940 467 133 360 Akamai Technologies European
8866 454 133 25 Bulgarian Telecommunication C
12479 454 593 7 Uni2 Autonomous System
29049 432 32 47 AzerSat LLC.
3320 423 8151 369 Deutsche Telekom AG
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 1559 287 163 TVCABLE BOGOTA
8151 1427 2728 353 Uninet S.A. de C.V.
28573 1277 995 78 Types of queries are: POCs, o
7303 1013 514 178 Telecom Argentina Stet-France
6503 764 354 75 AVANTEL, S.A.
14420 700 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 532 232 97 COLOMBIA TELECOMUNICACIONES S
27947 522 54 48 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
8452 817 445 11 TEDATA
24863 793 147 41 LINKdotNET AS number
15475 512 74 8 Nile Online
36992 317 415 15 Etisalat MISR
16637 302 441 87 Johnnic e-Ventures
3741 265 937 226 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 226 13 5 Starcomms Nigeria Limited
24835 161 78 10 RAYA Telecom - Egypt
15706 158 32 6 Sudatel Internet Exchange Aut
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 3614 3818 238 bellsouth.net, inc.
23456 2961 715 1588 >>UNKNOWN<<
18566 1957 372 223 Covad Communications
4766 1911 11052 634 Korea Telecom (KIX)
1785 1812 681 123 AppliedTheory Corporation
17974 1795 516 31 PT TELEKOMUNIKASI INDONESIA
4323 1614 1098 401 Time Warner Telecom
20115 1590 1538 623 Charter Communications
10620 1559 287 163 TVCABLE BOGOTA
7545 1554 301 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 1795 1764 PT TELEKOMUNIKASI INDONESIA
18566 1957 1734 Covad Communications
1785 1812 1689 AppliedTheory Corporation
7545 1554 1469 TPG Internet Pty Ltd
10620 1559 1396 TVCABLE BOGOTA
23456 2961 1373 >>UNKNOWN<<
4755 1506 1336 Videsh Sanchar Nigam Ltd. Aut
7552 1298 1291 Vietel Corporation
4766 1911 1277 Korea Telecom (KIX)
22773 1353 1264 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 1239 Sprint
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<<
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 /8:21 /9:12 /10:27 /11:80 /12:232
/13:465 /14:804 /15:1428 /16:12156 /17:6143 /18:10125
/19:20073 /20:27333 /21:26824 /22:35395 /23:34507 /24:192118
/25:394 /26:353 /27:183 /28:366 /29:278 /30:702
/31:63 /32:664
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2234 3614 bellsouth.net, inc.
18566 1907 1957 Covad Communications
23456 1470 2961 >>UNKNOWN<<
10620 1454 1559 TVCABLE BOGOTA
11492 1096 1142 Cable One
7029 1073 1389 Windstream Communications Inc
7011 1056 1158 Citizens Utilities
1785 1054 1812 AppliedTheory Corporation
6478 997 1025 AT&T Worldnet Services
286 891 1030 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:331 2:67 4:20 5:1 6:3 8:341
12:1968 13:1 14:490 15:15 16:3 17:5
20:10 23:14 24:1685 27:844 31:507 32:135
33:4 34:2 36:4 38:732 40:104 41:2615
42:35 44:3 46:1050 47:3 49:198 50:383
52:13 54:2 55:7 56:2 57:45 58:862
59:482 60:385 61:1184 62:1056 63:1956 64:4045
65:2301 66:3926 67:1920 68:1287 69:3174 70:823
71:373 72:1898 73:1 74:2483 75:345 76:338
77:894 78:710 79:485 80:1122 81:881 82:516
83:472 84:704 85:1081 86:537 87:784 88:339
89:1575 90:224 91:3983 92:527 93:1072 94:1367
95:916 96:424 97:263 98:929 99:37 101:77
103:142 106:73 107:24 108:81 109:1027 110:619
111:715 112:305 113:415 114:563 115:685 116:1000
117:690 118:862 119:1173 120:315 121:693 122:1608
123:975 124:1304 125:1280 128:247 129:172 130:170
131:582 132:113 133:21 134:215 135:52 136:215
137:138 138:300 139:129 140:478 141:253 142:406
143:416 144:477 145:54 146:455 147:229 148:675
149:249 150:159 151:189 152:338 153:182 154:5
155:397 156:198 157:352 158:140 159:455 160:315
161:204 162:310 163:166 164:506 165:397 166:534
167:435 168:740 169:154 170:849 171:80 172:1
173:1631 174:626 175:384 176:144 177:169 178:1017
180:915 181:24 182:512 183:234 184:345 185:1
186:1310 187:780 188:898 189:947 190:5006 192:5941
193:5019 194:3578 195:3189 196:1214 197:42 198:3590
199:3990 200:5580 201:1477 202:8426 203:8449 204:4236
205:2353 206:2733 207:2820 208:4114 209:3522 210:2685
211:1454 212:2144 213:1804 214:762 215:70 216:5011
217:1667 218:547 219:351 220:1230 221:496 222:360
223:220
End of report
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