Routing Table Report 00:00 GMT Tue 22 Mar, 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: 355019
Prefixes after maximum aggregation: 160379
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 173255
Total ASes present in the Internet Routing Table: 36106
Prefixes per ASN: 9.83
Origin-only ASes present in the Internet Routing Table: 31255
Origin ASes announcing only one prefix: 14926
Transit ASes present in the Internet Routing Table: 4851
Transit-only ASes present in the Internet Routing Table: 108
Average AS path length visible in the Internet Routing Table: 3.8
Max AS path length visible: 22
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 2461
Unregistered ASNs in the Routing Table: 227
Number of 32-bit ASNs allocated by the RIRs: 1213
Prefixes from 32-bit ASNs in the Routing Table: 1965
Special use prefixes present in the Routing Table: 74
Prefixes being announced from unallocated address space: 201
Number of addresses announced to Internet: 2389465931
Equivalent to 142 /8s, 108 /16s and 91 /24s
Percentage of available address space announced: 64.5
Percentage of allocated address space announced: 64.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 89.6
Total number of prefixes smaller than registry allocations: 146519
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85725
Total APNIC prefixes after maximum aggregation: 28642
APNIC Deaggregation factor: 2.99
Prefixes being announced from the APNIC address blocks: 82702
Unique aggregates announced from the APNIC address blocks: 36523
APNIC Region origin ASes present in the Internet Routing Table: 4348
APNIC Prefixes per ASN: 19.02
APNIC Region origin ASes announcing only one prefix: 1226
APNIC Region transit ASes present in the Internet Routing Table: 670
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 599975873
Equivalent to 35 /8s, 194 /16s and 231 /24s
Percentage of available APNIC address space announced: 76.1
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: 141352
Total ARIN prefixes after maximum aggregation: 72751
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113502
Unique aggregates announced from the ARIN address blocks: 45056
ARIN Region origin ASes present in the Internet Routing Table: 14270
ARIN Prefixes per ASN: 7.95
ARIN Region origin ASes announcing only one prefix: 5401
ARIN Region transit ASes present in the Internet Routing Table: 1421
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 797092888
Equivalent to 47 /8s, 130 /16s and 172 /24s
Percentage of available ARIN address space announced: 63.3
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: 85989
Total RIPE prefixes after maximum aggregation: 47564
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 78498
Unique aggregates announced from the RIPE address blocks: 49769
RIPE Region origin ASes present in the Internet Routing Table: 15456
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7737
RIPE Region transit ASes present in the Internet Routing Table: 2360
Average RIPE Region AS path length visible: 3.8
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 465055564
Equivalent to 27 /8s, 184 /16s and 47 /24s
Percentage of available RIPE address space announced: 74.9
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: 32257
Total LACNIC prefixes after maximum aggregation: 7381
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 31183
Unique aggregates announced from the LACNIC address blocks: 16167
LACNIC Region origin ASes present in the Internet Routing Table: 1434
LACNIC Prefixes per ASN: 21.75
LACNIC Region origin ASes announcing only one prefix: 435
LACNIC Region transit ASes present in the Internet Routing Table: 259
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 81459084
Equivalent to 4 /8s, 218 /16s and 247 /24s
Percentage of available LACNIC address space announced: 53.9
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: 7491
Total AfriNIC prefixes after maximum aggregation: 1804
AfriNIC Deaggregation factor: 4.15
Prefixes being announced from the AfriNIC address blocks: 5885
Unique aggregates announced from the AfriNIC address blocks: 1805
AfriNIC Region origin ASes present in the Internet Routing Table: 435
AfriNIC Prefixes per ASN: 13.53
AfriNIC Region origin ASes announcing only one prefix: 127
AfriNIC Region transit ASes present in the Internet Routing Table: 94
Average AfriNIC Region AS path length visible: 3.6
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 22138624
Equivalent to 1 /8s, 81 /16s and 207 /24s
Percentage of available AfriNIC address space announced: 33.0
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 1869 9500 593 Korea Telecom (KIX)
7545 1550 301 84 TPG Internet Pty Ltd
4755 1479 653 160 Videsh Sanchar Nigam Ltd. Aut
17974 1445 472 35 PT TELEKOMUNIKASI INDONESIA
24560 1134 324 187 Bharti Airtel Ltd.
9583 1052 77 494 Sify Limited
9829 1000 868 53 BSNL National Internet Backbo
17488 952 162 96 Hathway IP Over Cable Interne
18101 935 116 139 Reliance Infocom Ltd Internet
4808 920 1999 267 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 3673 3822 257 bellsouth.net, inc.
4323 2571 1109 404 Time Warner Telecom
1785 1793 681 129 AppliedTheory Corporation
18566 1607 331 195 Covad Communications
20115 1575 1540 645 Charter Communications
6478 1555 300 48 AT&T Worldnet Services
19262 1488 4923 299 Verizon Global Networks
7018 1367 6739 888 AT&T WorldNet Services
11492 1315 236 64 Cable One
22773 1286 2865 80 Cox Communications, Inc.
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 1005 795 166 KPNQwest Backbone AS
9116 545 328 32 Goldenlines main autonomous s
6830 516 1780 318 UPC Distribution Services
3292 508 2013 392 TDC Tele Danmark
9198 472 267 15 Kazakhtelecom Corporate Sales
34984 455 95 205 Tellcom Iletisim Hizmetleri
8866 444 133 24 Bulgarian Telecommunication C
20940 419 100 322 Akamai Technologies European
8402 412 320 32 Corbina telecom
3320 405 7604 353 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 1394 260 159 TVCABLE BOGOTA
28573 1246 965 82 Types of queries are: POCs, o
8151 1237 2680 372 Uninet S.A. de C.V.
6503 1176 354 74 AVANTEL, S.A.
7303 924 465 147 Telecom Argentina Stet-France
14420 638 52 91 Types of queries are: POCs, o
22047 544 310 15 Types of queries are: POCs, o
3816 516 225 96 COLOMBIA TELECOMUNICACIONES S
13489 493 213 106 Orbitel S.A. E.S.P.
11172 487 99 81 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 800 445 11 TEDATA
24863 774 147 40 LINKdotNET AS number
15475 424 90 8 Nile Online
36992 292 271 14 Etisalat MISR
3741 266 987 228 The Internet Solution
24835 232 78 10 RAYA Telecom - Egypt
33776 230 13 5 Starcomms Nigeria Limited
6713 207 199 11 Itissalat Al-MAGHRIB
29571 192 17 11 Ci Telecom Autonomous system
16637 152 441 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 3673 3822 257 bellsouth.net, inc.
4323 2571 1109 404 Time Warner Telecom
23456 1965 477 1070 >>UNKNOWN<<
4766 1869 9500 593 Korea Telecom (KIX)
1785 1793 681 129 AppliedTheory Corporation
18566 1607 331 195 Covad Communications
20115 1575 1540 645 Charter Communications
6478 1555 300 48 AT&T Worldnet Services
7545 1550 301 84 TPG Internet Pty Ltd
19262 1488 4923 299 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2571 2167 Time Warner Telecom
1785 1793 1664 AppliedTheory Corporation
6478 1555 1507 AT&T Worldnet Services
7545 1550 1466 TPG Internet Pty Ltd
18566 1607 1412 Covad Communications
17974 1445 1410 PT TELEKOMUNIKASI INDONESIA
4755 1479 1319 Videsh Sanchar Nigam Ltd. Aut
4766 1869 1276 Korea Telecom (KIX)
11492 1315 1251 Cable One
10620 1394 1235 TVCABLE BOGOTA
Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
44559 UNALLOCATED 2.57.0.0/16 29632 The NetAssist autono
44559 UNALLOCATED 2.59.0.0/16 29632 The NetAssist autono
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
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
41.57.192.0/18 22750 BCSNET
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
45.127.0.0/16 13767 NetworkTwo Communications Gro
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 /9:11 /10:26 /11:75 /12:218
/13:447 /14:771 /15:1399 /16:11686 /17:5926 /18:9710
/19:19539 /20:25408 /21:25571 /22:33969 /23:32601 /24:185077
/25:363 /26:338 /27:158 /28:176 /29:188 /30:661
/31:53 /32:628
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2267 3673 bellsouth.net, inc.
18566 1586 1607 Covad Communications
6478 1509 1555 AT&T Worldnet Services
4323 1380 2571 Time Warner Telecom
10620 1285 1394 TVCABLE BOGOTA
11492 1272 1315 Cable One
23456 1087 1965 >>UNKNOWN<<
7011 1062 1162 Citizens Utilities
1785 1057 1793 AppliedTheory Corporation
6503 955 1176 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:275 2:72 4:18 5:1 8:344 12:2027
13:1 14:425 15:15 16:3 17:8 20:9
23:3 24:1578 27:683 31:6 32:127 33:3
34:2 37:1 38:748 39:1 40:101 41:2276
44:3 46:725 47:4 49:162 50:110 52:13
55:2 56:2 57:37 58:870 59:495 60:386
61:1164 62:1033 63:1928 64:3896 65:2356 66:4380
67:1805 68:1257 69:3001 70:743 71:363 72:1929
73:3 74:2380 75:297 76:353 77:855 78:704
79:468 80:1099 81:815 82:525 83:475 84:660
85:1053 86:532 87:792 88:359 89:1589 90:174
91:3659 92:510 93:1054 94:1249 95:802 96:448
97:252 98:812 99:34 101:49 106:1 107:4
108:72 109:926 110:520 111:704 112:319 113:379
114:506 115:714 116:977 117:675 118:723 119:1084
120:261 121:769 122:1611 123:1044 124:1337 125:1248
128:266 129:174 130:172 131:562 132:100 133:20
134:217 135:49 136:212 137:146 138:300 139:127
140:484 141:173 142:379 143:389 144:478 145:52
146:437 147:203 148:613 149:265 150:161 151:187
152:298 153:180 154:3 155:388 156:184 157:348
158:132 159:372 160:313 161:209 162:278 163:165
164:494 165:369 166:499 167:413 168:721 169:159
170:783 171:69 172:2 173:1267 174:525 175:333
177:42 178:823 180:790 181:4 182:400 183:240
184:308 185:1 186:1071 187:875 188:922 189:1016
190:4756 192:5801 193:4814 194:3545 195:3091 196:1197
197:15 198:3582 199:3890 200:5540 201:1587 202:8549
203:8484 204:4117 205:2321 206:2663 207:3026 208:3919
209:3492 210:2701 211:1356 212:2005 213:1765 214:754
215:66 216:4897 217:1655 218:558 219:380 220:1202
221:474 222:346 223:100
End of report
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