Routing Table Report 00:00 GMT Wed 16 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: 355114
Prefixes after maximum aggregation: 159310
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 173074
Total ASes present in the Internet Routing Table: 36103
Prefixes per ASN: 9.84
Origin-only ASes present in the Internet Routing Table: 31192
Origin ASes announcing only one prefix: 14929
Transit ASes present in the Internet Routing Table: 4911
Transit-only ASes present in the Internet Routing Table: 124
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 31
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 494
Unregistered ASNs in the Routing Table: 220
Number of 32-bit ASNs allocated by the RIRs: 1199
Prefixes from 32-bit ASNs in the Routing Table: 2
Special use prefixes present in the Routing Table: 74
Prefixes being announced from unallocated address space: 201
Number of addresses announced to Internet: 2384649547
Equivalent to 142 /8s, 34 /16s and 221 /24s
Percentage of available address space announced: 64.3
Percentage of allocated address space announced: 64.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 89.2
Total number of prefixes smaller than registry allocations: 146819
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85582
Total APNIC prefixes after maximum aggregation: 28605
APNIC Deaggregation factor: 2.99
Prefixes being announced from the APNIC address blocks: 82519
Unique aggregates announced from the APNIC address blocks: 36386
APNIC Region origin ASes present in the Internet Routing Table: 4339
APNIC Prefixes per ASN: 19.02
APNIC Region origin ASes announcing only one prefix: 1223
APNIC Region transit ASes present in the Internet Routing Table: 674
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 596119745
Equivalent to 35 /8s, 136 /16s and 16 /24s
Percentage of available APNIC address space announced: 75.6
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: 143561
Total ARIN prefixes after maximum aggregation: 73809
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 113760
Unique aggregates announced from the ARIN address blocks: 44941
ARIN Region origin ASes present in the Internet Routing Table: 14266
ARIN Prefixes per ASN: 7.97
ARIN Region origin ASes announcing only one prefix: 5405
ARIN Region transit ASes present in the Internet Routing Table: 1449
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 796611096
Equivalent to 47 /8s, 123 /16s and 82 /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: 86014
Total RIPE prefixes after maximum aggregation: 47582
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 78538
Unique aggregates announced from the RIPE address blocks: 49877
RIPE Region origin ASes present in the Internet Routing Table: 15449
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7740
RIPE Region transit ASes present in the Internet Routing Table: 2376
Average RIPE Region AS path length visible: 3.8
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 464710732
Equivalent to 27 /8s, 178 /16s and 236 /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: 32190
Total LACNIC prefixes after maximum aggregation: 7397
LACNIC Deaggregation factor: 4.35
Prefixes being announced from the LACNIC address blocks: 31111
Unique aggregates announced from the LACNIC address blocks: 16115
LACNIC Region origin ASes present in the Internet Routing Table: 1434
LACNIC Prefixes per ASN: 21.70
LACNIC Region origin ASes announcing only one prefix: 433
LACNIC Region transit ASes present in the Internet Routing Table: 257
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 81461132
Equivalent to 4 /8s, 218 /16s and 255 /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: 7505
Total AfriNIC prefixes after maximum aggregation: 1813
AfriNIC Deaggregation factor: 4.14
Prefixes being announced from the AfriNIC address blocks: 5887
Unique aggregates announced from the AfriNIC address blocks: 1803
AfriNIC Region origin ASes present in the Internet Routing Table: 434
AfriNIC Prefixes per ASN: 13.56
AfriNIC Region origin ASes announcing only one prefix: 128
AfriNIC Region transit ASes present in the Internet Routing Table: 96
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 22044672
Equivalent to 1 /8s, 80 /16s and 96 /24s
Percentage of available AfriNIC address space announced: 32.8
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 1864 9500 588 Korea Telecom (KIX)
7545 1558 301 86 TPG Internet Pty Ltd
4755 1467 649 154 Videsh Sanchar Nigam Ltd. Aut
17974 1411 468 29 PT TELEKOMUNIKASI INDONESIA
24560 1129 324 186 Bharti Airtel Ltd.
9583 1047 77 487 Sify Limited
9829 1004 868 53 BSNL National Internet Backbo
4808 1002 2082 284 CNCGROUP IP network: China169
17488 961 162 96 Hathway IP Over Cable Interne
18101 934 117 141 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 3676 3839 259 bellsouth.net, inc.
4323 2585 1109 402 Time Warner Telecom
19262 1831 4953 283 Verizon Global Networks
1785 1794 681 130 AppliedTheory Corporation
20115 1579 1538 649 Charter Communications
6478 1546 299 73 AT&T Worldnet Services
18566 1524 326 180 Covad Communications
7018 1369 6739 891 AT&T WorldNet Services
11492 1318 237 64 Cable One
2386 1292 537 931 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 1007 795 164 KPNQwest Backbone AS
9116 545 328 32 Goldenlines main autonomous s
6830 516 1780 318 UPC Distribution Services
3292 505 1996 390 TDC Tele Danmark
9198 470 267 15 Kazakhtelecom Corporate Sales
34984 451 95 201 Tellcom Iletisim Hizmetleri
8866 445 133 24 Bulgarian Telecommunication C
8402 431 320 32 Corbina telecom
20940 414 97 319 Akamai Technologies European
3320 405 7604 351 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 1392 259 163 TVCABLE BOGOTA
28573 1238 965 82 Types of queries are: POCs, o
8151 1235 2683 367 Uninet S.A. de C.V.
6503 1175 354 74 AVANTEL, S.A.
7303 921 464 147 Telecom Argentina Stet-France
14420 635 52 88 Types of queries are: POCs, o
22047 544 310 15 Types of queries are: POCs, o
3816 515 225 96 COLOMBIA TELECOMUNICACIONES S
11172 489 99 83 Alestra
7738 479 922 30 Telecomunicacoes da Bahia 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 795 445 11 TEDATA
24863 773 147 39 LINKdotNET AS number
15475 423 90 8 Nile Online
36992 295 271 14 Etisalat MISR
3741 266 987 228 The Internet Solution
33776 230 13 5 Starcomms Nigeria Limited
24835 225 78 10 RAYA Telecom - Egypt
6713 204 199 11 Itissalat Al-MAGHRIB
29571 192 17 11 Ci Telecom Autonomous system
16637 142 422 85 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 3676 3839 259 bellsouth.net, inc.
4323 2585 1109 402 Time Warner Telecom
4766 1864 9500 588 Korea Telecom (KIX)
19262 1831 4953 283 Verizon Global Networks
1785 1794 681 130 AppliedTheory Corporation
20115 1579 1538 649 Charter Communications
7545 1558 301 86 TPG Internet Pty Ltd
6478 1546 299 73 AT&T Worldnet Services
18566 1524 326 180 Covad Communications
4755 1467 649 154 Videsh Sanchar Nigam Ltd. Aut
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 2585 2183 Time Warner Telecom
1785 1794 1664 AppliedTheory Corporation
19262 1831 1548 Verizon Global Networks
6478 1546 1473 AT&T Worldnet Services
7545 1558 1472 TPG Internet Pty Ltd
17974 1411 1382 PT TELEKOMUNIKASI INDONESIA
18566 1524 1344 Covad Communications
4755 1467 1313 Videsh Sanchar Nigam Ltd. Aut
4766 1864 1276 Korea Telecom (KIX)
11492 1318 1254 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 7018 AT&T WorldNet Servic
13746 UNALLOCATED 12.24.56.0/24 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 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 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
31.185.0.0/21 48573 LLC NFS Telecom
41.57.192.0/18 22750 BCSNET
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>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 /8:19 /9:11 /10:26 /11:74 /12:217
/13:447 /14:772 /15:1396 /16:11668 /17:5913 /18:9679
/19:19559 /20:25379 /21:25657 /22:33938 /23:32599 /24:185179
/25:361 /26:347 /27:162 /28:178 /29:187 /30:660
/31:54 /32:632
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2267 3676 bellsouth.net, inc.
18566 1503 1524 Covad Communications
6478 1500 1546 AT&T Worldnet Services
4323 1394 2585 Time Warner Telecom
10620 1283 1392 TVCABLE BOGOTA
11492 1275 1318 Cable One
7011 1062 1162 Citizens Utilities
1785 1057 1794 AppliedTheory Corporation
6503 953 1175 AVANTEL, S.A.
19262 941 1831 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:269 2:92 4:18 5:1 8:342 12:2029
13:1 14:430 15:15 16:3 17:8 20:10
23:3 24:1556 27:637 31:2 32:127 33:4
34:2 37:1 38:717 39:1 40:101 41:2282
44:3 46:730 47:4 49:163 50:201 52:13
55:2 56:2 57:43 58:863 59:497 60:387
61:1145 62:1032 63:1932 64:3895 65:2354 66:4356
67:1799 68:1231 69:3001 70:748 71:406 72:2030
73:3 74:2407 75:297 76:351 77:854 78:702
79:467 80:1111 81:824 82:527 83:479 84:658
85:1066 86:580 87:794 88:359 89:1604 90:174
91:3648 92:498 93:1052 94:1239 95:803 96:471
97:251 98:807 99:34 101:48 106:1 107:4
108:129 109:915 110:477 111:717 112:322 113:374
114:497 115:715 116:985 117:676 118:720 119:1046
120:261 121:757 122:1615 123:1038 124:1317 125:1267
128:266 129:172 130:171 131:561 132:100 133:20
134:218 135:49 136:213 137:145 138:299 139:120
140:487 141:203 142:378 143:384 144:475 145:52
146:434 147:220 148:629 149:265 150:161 151:229
152:298 153:180 154:3 155:375 156:182 157:349
158:131 159:372 160:313 161:212 162:277 163:161
164:491 165:369 166:499 167:410 168:725 169:159
170:758 171:69 172:2 173:1275 174:521 175:327
177:43 178:809 180:818 181:4 182:388 183:245
184:315 185:1 186:1048 187:861 188:929 189:1031
190:4706 192:5801 193:4813 194:3541 195:3094 196:1200
197:6 198:3592 199:3862 200:5594 201:1588 202:8468
203:8504 204:4108 205:2306 206:2658 207:3048 208:3938
209:3486 210:2695 211:1353 212:2000 213:1764 214:755
215:66 216:4883 217:1655 218:557 219:382 220:1203
221:478 222:346 223:99
End of report
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