Routing Table Report 00:00 GMT Mon 21 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: 354802
Prefixes after maximum aggregation: 160272
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 173109
Total ASes present in the Internet Routing Table: 36105
Prefixes per ASN: 9.83
Origin-only ASes present in the Internet Routing Table: 31207
Origin ASes announcing only one prefix: 14932
Transit ASes present in the Internet Routing Table: 4898
Transit-only ASes present in the Internet Routing Table: 111
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 23
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 2493
Unregistered ASNs in the Routing Table: 230
Number of 32-bit ASNs allocated by the RIRs: 1213
Prefixes from 32-bit ASNs in the Routing Table: 1951
Special use prefixes present in the Routing Table: 74
Prefixes being announced from unallocated address space: 201
Number of addresses announced to Internet: 2388800587
Equivalent to 142 /8s, 98 /16s and 52 /24s
Percentage of available address space announced: 64.4
Percentage of allocated address space announced: 64.4
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 89.5
Total number of prefixes smaller than registry allocations: 146495
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85658
Total APNIC prefixes after maximum aggregation: 28603
APNIC Deaggregation factor: 2.99
Prefixes being announced from the APNIC address blocks: 82621
Unique aggregates announced from the APNIC address blocks: 36492
APNIC Region origin ASes present in the Internet Routing Table: 4342
APNIC Prefixes per ASN: 19.03
APNIC Region origin ASes announcing only one prefix: 1221
APNIC Region transit ASes present in the Internet Routing Table: 669
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 599473857
Equivalent to 35 /8s, 187 /16s and 62 /24s
Percentage of available APNIC address space announced: 76.0
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: 141209
Total ARIN prefixes after maximum aggregation: 72719
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113428
Unique aggregates announced from the ARIN address blocks: 45025
ARIN Region origin ASes present in the Internet Routing Table: 14280
ARIN Prefixes per ASN: 7.94
ARIN Region origin ASes announcing only one prefix: 5413
ARIN Region transit ASes present in the Internet Routing Table: 1442
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 797067544
Equivalent to 47 /8s, 130 /16s and 73 /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: 85975
Total RIPE prefixes after maximum aggregation: 47510
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 78503
Unique aggregates announced from the RIPE address blocks: 49743
RIPE Region origin ASes present in the Internet Routing Table: 15446
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7734
RIPE Region transit ASes present in the Internet Routing Table: 2383
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 465016396
Equivalent to 27 /8s, 183 /16s and 150 /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: 32282
Total LACNIC prefixes after maximum aggregation: 7401
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 31184
Unique aggregates announced from the LACNIC address blocks: 16163
LACNIC Region origin ASes present in the Internet Routing Table: 1436
LACNIC Prefixes per ASN: 21.72
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: 4.3
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 81494156
Equivalent to 4 /8s, 219 /16s and 128 /24s
Percentage of available LACNIC address space announced: 54.0
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: 7482
Total AfriNIC prefixes after maximum aggregation: 1802
AfriNIC Deaggregation factor: 4.15
Prefixes being announced from the AfriNIC address blocks: 5878
Unique aggregates announced from the AfriNIC address blocks: 1803
AfriNIC Region origin ASes present in the Internet Routing Table: 435
AfriNIC Prefixes per ASN: 13.51
AfriNIC Region origin ASes announcing only one prefix: 129
AfriNIC Region transit ASes present in the Internet Routing Table: 92
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 22138880
Equivalent to 1 /8s, 81 /16s and 208 /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 1553 301 84 TPG Internet Pty Ltd
4755 1477 653 159 Videsh Sanchar Nigam Ltd. Aut
17974 1433 472 34 PT TELEKOMUNIKASI INDONESIA
24560 1134 324 187 Bharti Airtel Ltd.
9583 1049 77 492 Sify Limited
9829 1002 868 53 BSNL National Internet Backbo
17488 952 162 96 Hathway IP Over Cable Interne
18101 935 117 140 Reliance Infocom Ltd Internet
4808 914 1993 263 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 3838 258 bellsouth.net, inc.
4323 2570 1109 403 Time Warner Telecom
1785 1795 681 131 AppliedTheory Corporation
18566 1607 331 195 Covad Communications
20115 1578 1540 645 Charter Communications
6478 1553 300 65 AT&T Worldnet Services
19262 1488 4923 299 Verizon Global Networks
7018 1368 6723 889 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 95 203 Tellcom Iletisim Hizmetleri
8866 444 133 24 Bulgarian Telecommunication C
8402 423 320 32 Corbina telecom
20940 416 98 319 Akamai Technologies European
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 1245 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 923 465 146 Telecom Argentina Stet-France
14420 636 52 91 Types of queries are: POCs, o
22047 543 310 15 Types of queries are: POCs, o
3816 514 225 97 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 790 445 11 TEDATA
24863 774 147 40 LINKdotNET AS number
15475 428 90 8 Nile Online
36992 297 271 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 3838 258 bellsouth.net, inc.
4323 2570 1109 403 Time Warner Telecom
23456 1951 476 1070 >>UNKNOWN<<
4766 1869 9500 593 Korea Telecom (KIX)
1785 1795 681 131 AppliedTheory Corporation
18566 1607 331 195 Covad Communications
20115 1578 1540 645 Charter Communications
6478 1553 300 65 AT&T Worldnet Services
7545 1553 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 2570 2167 Time Warner Telecom
1785 1795 1664 AppliedTheory Corporation
6478 1553 1488 AT&T Worldnet Services
7545 1553 1469 TPG Internet Pty Ltd
18566 1607 1412 Covad Communications
17974 1433 1399 PT TELEKOMUNIKASI INDONESIA
4755 1477 1318 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 /14:772 /15:1398 /16:11676 /17:5925 /18:9711
/19:19545 /20:25387 /21:25543 /22:33987 /23:32597 /24:184887
/25:367 /26:339 /27:159 /28:176 /29:189 /30:660
/31:54 /32:633
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 1507 1553 AT&T Worldnet Services
4323 1380 2570 Time Warner Telecom
10620 1285 1394 TVCABLE BOGOTA
11492 1272 1315 Cable One
23456 1079 1951 >>UNKNOWN<<
7011 1062 1162 Citizens Utilities
1785 1057 1795 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)
----------------------------------------------
1:272 2:83 4:18 5:1 8:344 12:2009
13:1 14:422 15:15 16:3 17:8 20:9
23:3 24:1574 27:684 31:4 32:127 33:3
34:2 37:1 38:716 39:1 40:101 41:2266
44:3 46:738 47:4 49:162 50:110 52:13
55:3 56:2 57:43 58:866 59:494 60:387
61:1151 62:1037 63:1928 64:3894 65:2354 66:4382
67:1799 68:1267 69:2993 70:745 71:365 72:1928
73:3 74:2381 75:298 76:353 77:852 78:703
79:468 80:1101 81:825 82:528 83:476 84:659
85:1054 86:522 87:790 88:359 89:1592 90:174
91:3661 92:505 93:1052 94:1248 95:800 96:448
97:251 98:807 99:34 101:49 106:1 107:4
108:72 109:918 110:518 111:701 112:319 113:378
114:506 115:712 116:976 117:675 118:723 119:1082
120:261 121:768 122:1611 123:1042 124:1320 125:1250
128:266 129:174 130:172 131:561 132:100 133:20
134:217 135:49 136:212 137:146 138:300 139:127
140:485 141:173 142:378 143:389 144:478 145:52
146:436 147:203 148:613 149:265 150:161 151:187
152:298 153:180 154:3 155:387 156:184 157:348
158:131 159:372 160:313 161:209 162:277 163:164
164:492 165:369 166:499 167:412 168:721 169:159
170:783 171:69 172:2 173:1266 174:525 175:334
177:44 178:814 180:789 181:4 182:396 183:241
184:308 185:1 186:1066 187:876 188:917 189:1030
190:4753 192:5778 193:4819 194:3544 195:3089 196:1194
197:15 198:3584 199:3879 200:5519 201:1589 202:8547
203:8487 204:4115 205:2314 206:2669 207:3028 208:3920
209:3489 210:2699 211:1354 212:1999 213:1765 214:752
215:66 216:4888 217:1659 218:557 219:382 220:1202
221:474 222:346 223:100
End of report
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