Routing Table Report 00:00 GMT Tue 17 May, 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: 361419
Prefixes after maximum aggregation: 163155
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 176449
Total ASes present in the Internet Routing Table: 37589
Prefixes per ASN: 9.62
Origin-only ASes present in the Internet Routing Table: 31416
Origin ASes announcing only one prefix: 15048
Transit ASes present in the Internet Routing Table: 5094
Transit-only ASes present in the Internet Routing Table: 127
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 3197
Unregistered ASNs in the Routing Table: 356
Number of 32-bit ASNs allocated by the RIRs: 1357
Number of 32-bit ASNs visible in the Routing Table: 1079
Prefixes from 32-bit ASNs in the Routing Table: 2436
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 152
Number of addresses announced to Internet: 2429720775
Equivalent to 144 /8s, 210 /16s and 152 /24s
Percentage of available address space announced: 65.6
Percentage of allocated address space announced: 65.6
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 90.8
Total number of prefixes smaller than registry allocations: 149771
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 87439
Total APNIC prefixes after maximum aggregation: 28872
APNIC Deaggregation factor: 3.03
Prefixes being announced from the APNIC address blocks: 83876
Unique aggregates announced from the APNIC address blocks: 36635
APNIC Region origin ASes present in the Internet Routing Table: 4428
APNIC Prefixes per ASN: 18.94
APNIC Region origin ASes announcing only one prefix: 1240
APNIC Region transit ASes present in the Internet Routing Table: 693
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 47
Number of APNIC addresses announced to Internet: 614290625
Equivalent to 36 /8s, 157 /16s and 84 /24s
Percentage of available APNIC address space announced: 77.9
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: 143194
Total ARIN prefixes after maximum aggregation: 73613
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 115190
Unique aggregates announced from the ARIN address blocks: 45424
ARIN Region origin ASes present in the Internet Routing Table: 14377
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5472
ARIN Region transit ASes present in the Internet Routing Table: 1473
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 800095768
Equivalent to 47 /8s, 176 /16s and 126 /24s
Percentage of available ARIN address space announced: 63.6
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: 87369
Total RIPE prefixes after maximum aggregation: 48532
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 80071
Unique aggregates announced from the RIPE address blocks: 51512
RIPE Region origin ASes present in the Internet Routing Table: 15628
RIPE Prefixes per ASN: 5.12
RIPE Region origin ASes announcing only one prefix: 7770
RIPE Region transit ASes present in the Internet Routing Table: 2486
Average RIPE Region AS path length visible: 4.1
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 799
Number of RIPE addresses announced to Internet: 472582220
Equivalent to 28 /8s, 43 /16s and 8 /24s
Percentage of available RIPE address space announced: 76.1
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: 32831
Total LACNIC prefixes after maximum aggregation: 7516
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 31848
Unique aggregates announced from the LACNIC address blocks: 16703
LACNIC Region origin ASes present in the Internet Routing Table: 1452
LACNIC Prefixes per ASN: 21.93
LACNIC Region origin ASes announcing only one prefix: 430
LACNIC Region transit ASes present in the Internet Routing Table: 265
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 216
Number of LACNIC addresses announced to Internet: 83416584
Equivalent to 4 /8s, 248 /16s and 214 /24s
Percentage of available LACNIC address space announced: 55.2
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: 7845
Total AfriNIC prefixes after maximum aggregation: 1875
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6187
Unique aggregates announced from the AfriNIC address blocks: 1916
AfriNIC Region origin ASes present in the Internet Routing Table: 446
AfriNIC Prefixes per ASN: 13.87
AfriNIC Region origin ASes announcing only one prefix: 136
AfriNIC Region transit ASes present in the Internet Routing Table: 102
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 26
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 23121664
Equivalent to 1 /8s, 96 /16s and 207 /24s
Percentage of available AfriNIC address space announced: 34.5
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 1892 9485 612 Korea Telecom (KIX)
17974 1821 508 33 PT TELEKOMUNIKASI INDONESIA
7545 1554 301 86 TPG Internet Pty Ltd
4755 1463 374 165 Videsh Sanchar Nigam Ltd. Aut
24560 1149 336 184 Bharti Airtel Ltd.
7552 1105 1064 7 Vietel Corporation
9583 1080 80 511 Sify Limited
9829 1039 874 51 BSNL National Internet Backbo
4808 961 2026 278 CNCGROUP IP network: China169
17488 940 164 97 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 3644 3822 258 bellsouth.net, inc.
4323 1976 1097 397 Time Warner Telecom
18566 1822 357 232 Covad Communications
1785 1777 681 125 AppliedTheory Corporation
6478 1661 312 145 AT&T Worldnet Services
20115 1581 1542 629 Charter Communications
19262 1499 4949 299 Verizon Global Networks
7018 1374 7091 905 AT&T WorldNet Services
22773 1328 2897 86 Cox Communications, Inc.
11492 1279 240 15 Cable One
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 1019 798 176 KPNQwest Backbone AS
9116 539 326 30 Goldenlines main autonomous s
6830 519 1780 320 UPC Distribution Services
3292 516 1998 392 TDC Tele Danmark
34984 512 106 182 Tellcom Iletisim Hizmetleri
20940 462 134 354 Akamai Technologies European
8866 441 134 26 Bulgarian Telecommunication C
29049 439 32 45 AzerSat LLC.
12479 427 577 6 Uni2 Autonomous System
3320 421 8152 368 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 1477 272 152 TVCABLE BOGOTA
8151 1368 2683 358 Uninet S.A. de C.V.
28573 1315 990 86 Types of queries are: POCs, o
7303 929 470 150 Telecom Argentina Stet-France
6503 735 354 74 AVANTEL, S.A.
14420 667 54 91 Types of queries are: POCs, o
22047 555 310 15 Types of queries are: POCs, o
3816 522 227 99 COLOMBIA TELECOMUNICACIONES S
27947 497 53 46 Telconet S.A
11172 494 84 84 Alestra
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 894 445 11 TEDATA
24863 783 147 38 LINKdotNET AS number
15475 417 90 8 Nile Online
36992 288 331 17 Etisalat MISR
3741 268 985 228 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 217 12 11 Starcomms Nigeria Limited
24835 206 78 10 RAYA Telecom - Egypt
29571 162 17 11 Ci Telecom Autonomous system
16637 153 441 87 Johnnic e-Ventures
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 3644 3822 258 bellsouth.net, inc.
23456 2436 627 1326 >>UNKNOWN<<
4323 1976 1097 397 Time Warner Telecom
4766 1892 9485 612 Korea Telecom (KIX)
18566 1822 357 232 Covad Communications
17974 1821 508 33 PT TELEKOMUNIKASI INDONESIA
1785 1777 681 125 AppliedTheory Corporation
6478 1661 312 145 AT&T Worldnet Services
20115 1581 1542 629 Charter Communications
7545 1554 301 86 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 1821 1788 PT TELEKOMUNIKASI INDONESIA
1785 1777 1652 AppliedTheory Corporation
18566 1822 1590 Covad Communications
4323 1976 1579 Time Warner Telecom
6478 1661 1516 AT&T Worldnet Services
7545 1554 1468 TPG Internet Pty Ltd
10620 1477 1325 TVCABLE BOGOTA
4755 1463 1298 Videsh Sanchar Nigam Ltd. Aut
4766 1892 1280 Korea Telecom (KIX)
11492 1279 1264 Cable One
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 4323 Time Warner Telecom
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
27.0.128.0/17 7514 Media Exchange, Inc.
31.222.200.0/21 12327 IDEAR4BUSINESS INTERNATIONAL
41.79.32.0/22 14988 Botswana Telecommunications C
41.222.79.0/24 36938 >>UNKNOWN<<
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 /10:28 /11:80 /12:225
/13:460 /14:798 /15:1427 /16:11875 /17:6035 /18:10017
/19:19845 /20:26301 /21:26248 /22:34530 /23:33407 /24:187459
/25:371 /26:347 /27:169 /28:283 /29:177 /30:606
/31:65 /32:634
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2243 3644 bellsouth.net, inc.
18566 1784 1822 Covad Communications
6478 1616 1661 AT&T Worldnet Services
10620 1367 1477 TVCABLE BOGOTA
11492 1225 1279 Cable One
23456 1196 2436 >>UNKNOWN<<
7011 1062 1162 Citizens Utilities
1785 1050 1777 AppliedTheory Corporation
4323 887 1976 Time Warner Telecom
286 879 1019 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:265 2:66 4:18 5:1 6:3 8:354
12:1990 13:1 14:457 15:15 16:3 17:8
20:10 23:7 24:1652 27:747 31:336 32:126
33:4 34:2 37:1 38:739 40:101 41:2515
42:5 44:3 46:910 47:4 49:177 50:402
52:13 55:5 56:2 57:39 58:849 59:486
60:387 61:1257 62:992 63:1936 64:3948 65:2297
66:4168 67:1903 68:1268 69:3094 70:750 71:357
72:1916 73:3 74:2406 75:324 76:351 77:902
78:684 79:483 80:1104 81:824 82:509 83:456
84:647 85:1073 86:612 87:755 88:325 89:1596
90:202 91:3744 92:513 93:1074 94:1258 95:812
96:483 97:246 98:852 99:35 101:58 103:14
106:1 107:7 108:85 109:948 110:588 111:715
112:320 113:398 114:534 115:663 116:972 117:684
118:818 119:1117 120:306 121:681 122:1622 123:1079
124:1258 125:1221 128:260 129:170 130:163 131:571
132:110 133:19 134:218 135:49 136:214 137:143
138:305 139:119 140:481 141:238 142:406 143:404
144:486 145:53 146:443 147:219 148:591 149:243
150:172 151:187 152:308 153:178 154:3 155:396
156:194 157:353 158:132 159:387 160:317 161:207
162:279 163:163 164:500 165:370 166:510 167:430
168:726 169:154 170:794 171:77 172:1 173:1579
174:554 175:371 177:119 178:907 180:842 181:15
182:443 183:204 184:345 185:1 186:1168 187:754
188:857 189:908 190:4805 192:5822 193:4871 194:3523
195:3117 196:1220 197:17 198:3603 199:3903 200:5532
201:1498 202:8359 203:8477 204:4162 205:2333 206:2745
207:2917 208:3985 209:3435 210:2742 211:1420 212:2023
213:1775 214:735 215:72 216:4864 217:1637 218:569
219:362 220:1204 221:483 222:342 223:146
End of report
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