Routing Table Report 00:00 GMT Thu 10 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: 353810
Prefixes after maximum aggregation: 158947
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 172617
Total ASes present in the Internet Routing Table: 36029
Prefixes per ASN: 9.82
Origin-only ASes present in the Internet Routing Table: 31122
Origin ASes announcing only one prefix: 14903
Transit ASes present in the Internet Routing Table: 4907
Transit-only ASes present in the Internet Routing Table: 108
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 25
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 465
Unregistered ASNs in the Routing Table: 202
Number of 32-bit ASNs allocated by the RIRs: 1185
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: 262
Number of addresses announced to Internet: 2468212187
Equivalent to 147 /8s, 29 /16s and 237 /24s
Percentage of available address space announced: 66.6
Percentage of allocated address space announced: 66.6
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 89.1
Total number of prefixes smaller than registry allocations: 146217
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85070
Total APNIC prefixes after maximum aggregation: 28603
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 81955
Unique aggregates announced from the APNIC address blocks: 36267
APNIC Region origin ASes present in the Internet Routing Table: 4338
APNIC Prefixes per ASN: 18.89
APNIC Region origin ASes announcing only one prefix: 1217
APNIC Region transit ASes present in the Internet Routing Table: 670
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 595525057
Equivalent to 35 /8s, 126 /16s and 253 /24s
Percentage of available APNIC address space announced: 75.5
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: 143261
Total ARIN prefixes after maximum aggregation: 73678
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113542
Unique aggregates announced from the ARIN address blocks: 44937
ARIN Region origin ASes present in the Internet Routing Table: 14246
ARIN Prefixes per ASN: 7.97
ARIN Region origin ASes announcing only one prefix: 5385
ARIN Region transit ASes present in the Internet Routing Table: 1442
Average ARIN Region AS path length visible: 4.2
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 796423832
Equivalent to 47 /8s, 120 /16s and 118 /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: 85598
Total RIPE prefixes after maximum aggregation: 47313
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 78081
Unique aggregates announced from the RIPE address blocks: 49451
RIPE Region origin ASes present in the Internet Routing Table: 15410
RIPE Prefixes per ASN: 5.07
RIPE Region origin ASes announcing only one prefix: 7743
RIPE Region transit ASes present in the Internet Routing Table: 2394
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 481105500
Equivalent to 28 /8s, 173 /16s and 22 /24s
Percentage of available RIPE address space announced: 77.5
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: 32151
Total LACNIC prefixes after maximum aggregation: 7429
LACNIC Deaggregation factor: 4.33
Prefixes being announced from the LACNIC address blocks: 31004
Unique aggregates announced from the LACNIC address blocks: 16125
LACNIC Region origin ASes present in the Internet Routing Table: 1436
LACNIC Prefixes per ASN: 21.59
LACNIC Region origin ASes announcing only one prefix: 430
LACNIC Region transit ASes present in the Internet Routing Table: 258
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 81352076
Equivalent to 4 /8s, 217 /16s and 85 /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: 7476
Total AfriNIC prefixes after maximum aggregation: 1820
AfriNIC Deaggregation factor: 4.11
Prefixes being announced from the AfriNIC address blocks: 5848
Unique aggregates announced from the AfriNIC address blocks: 1820
AfriNIC Region origin ASes present in the Internet Routing Table: 434
AfriNIC Prefixes per ASN: 13.47
AfriNIC Region origin ASes announcing only one prefix: 128
AfriNIC Region transit ASes present in the Internet Routing Table: 93
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 19
Number of AfriNIC addresses announced to Internet: 21946880
Equivalent to 1 /8s, 78 /16s and 226 /24s
Percentage of available AfriNIC address space announced: 32.7
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 1862 9500 588 Korea Telecom (KIX)
7545 1576 301 83 TPG Internet Pty Ltd
4755 1424 637 165 Videsh Sanchar Nigam Ltd. Aut
17974 1407 459 29 PT TELEKOMUNIKASI INDONESIA
24560 1130 324 186 Bharti Airtel Ltd.
9583 1045 77 488 Sify Limited
9829 969 839 56 BSNL National Internet Backbo
17488 958 162 103 Hathway IP Over Cable Interne
4808 941 2029 271 CNCGROUP IP network: China169
18101 935 117 141 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 3680 3839 261 bellsouth.net, inc.
4323 2574 1125 400 Time Warner Telecom
19262 1830 4953 283 Verizon Global Networks
1785 1793 681 131 AppliedTheory Corporation
20115 1575 1537 650 Charter Communications
6478 1532 298 91 AT&T Worldnet Services
18566 1525 326 180 Covad Communications
7018 1368 6859 892 AT&T WorldNet Services
2386 1294 537 934 AT&T Data Communications Serv
11492 1294 236 69 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 1013 796 167 KPNQwest Backbone AS
9116 542 328 31 Goldenlines main autonomous s
6830 515 1780 317 UPC Distribution Services
3292 505 1996 390 TDC Tele Danmark
9198 470 267 15 Kazakhtelecom Corporate Sales
34984 465 98 145 Tellcom Iletisim Hizmetleri
8866 444 133 23 Bulgarian Telecommunication C
20940 413 97 316 Akamai Technologies European
8551 405 355 38 Bezeq International
3320 404 7604 352 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 1384 258 163 TVCABLE BOGOTA
8151 1373 2681 366 Uninet S.A. de C.V.
28573 1243 963 83 Types of queries are: POCs, o
6503 1183 354 74 AVANTEL, S.A.
7303 910 464 146 Telecom Argentina Stet-France
14420 644 56 93 Types of queries are: POCs, o
22047 541 310 15 Types of queries are: POCs, o
3816 517 225 96 COLOMBIA TELECOMUNICACIONES S
11172 490 100 84 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 784 445 11 TEDATA
24863 770 147 40 LINKdotNET AS number
15475 447 90 8 Nile Online
36992 300 271 14 Etisalat MISR
3741 266 987 228 The Internet Solution
33776 230 13 5 Starcomms Nigeria Limited
24835 228 78 10 RAYA Telecom - Egypt
6713 204 199 11 Itissalat Al-MAGHRIB
29571 192 17 11 Ci Telecom Autonomous system
16637 142 422 86 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 3680 3839 261 bellsouth.net, inc.
4323 2574 1125 400 Time Warner Telecom
4766 1862 9500 588 Korea Telecom (KIX)
19262 1830 4953 283 Verizon Global Networks
1785 1793 681 131 AppliedTheory Corporation
7545 1576 301 83 TPG Internet Pty Ltd
20115 1575 1537 650 Charter Communications
6478 1532 298 91 AT&T Worldnet Services
18566 1525 326 180 Covad Communications
4755 1424 637 165 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 2574 2174 Time Warner Telecom
1785 1793 1662 AppliedTheory Corporation
19262 1830 1547 Verizon Global Networks
7545 1576 1493 TPG Internet Pty Ltd
6478 1532 1441 AT&T Worldnet Services
17974 1407 1378 PT TELEKOMUNIKASI INDONESIA
18566 1525 1345 Covad Communications
4766 1862 1274 Korea Telecom (KIX)
4755 1424 1259 Videsh Sanchar Nigam Ltd. Aut
11492 1294 1225 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 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
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
1.5.0.0/16 38639 NTT Communications Corporatio
1.6.0.0/15 38639 NTT Communications Corporatio
1.8.0.0/16 38639 NTT Communications Corporatio
1.20.0.0/16 38639 NTT Communications Corporatio
1.32.0.0/16 38639 NTT Communications Corporatio
1.37.0.0/16 38639 NTT Communications Corporatio
1.187.0.0/16 38639 NTT Communications Corporatio
14.0.0.0/24 38639 NTT Communications Corporatio
14.0.1.0/24 38639 NTT Communications Corporatio
14.0.2.0/23 38639 NTT Communications Corporatio
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 /8:24 /9:11 /10:26 /11:74 /12:217
/13:446 /14:773 /15:1399 /16:11685 /17:5894 /18:9657
/19:19524 /20:25277 /21:25566 /22:33865 /23:32509 /24:184394
/25:377 /26:347 /27:155 /28:292 /29:157 /30:551
/31:51 /32:539
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2269 3680 bellsouth.net, inc.
18566 1503 1525 Covad Communications
6478 1486 1532 AT&T Worldnet Services
4323 1387 2574 Time Warner Telecom
10620 1275 1384 TVCABLE BOGOTA
11492 1251 1294 Cable One
7011 1058 1159 Citizens Utilities
1785 1055 1793 AppliedTheory Corporation
6503 961 1183 AVANTEL, S.A.
19262 941 1830 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:257 2:71 4:18 5:1 8:342 12:2031
13:1 14:425 15:15 16:3 17:8 20:9
23:3 24:1523 27:605 31:5 32:127 33:4
34:2 36:2 37:1 38:746 39:1 40:101
41:2277 42:13 44:3 46:712 47:4 49:164
50:194 52:13 55:2 56:2 57:43 58:863
59:480 60:386 61:1117 62:1043 63:1932 64:3892
65:2349 66:4347 67:1798 68:1222 69:2988 70:745
71:404 72:2039 73:3 74:2402 75:297 76:349
77:846 78:701 79:458 80:1100 81:805 82:530
83:474 84:656 85:1064 86:575 87:784 88:356
89:1593 90:171 91:3598 92:497 93:1062 94:1232
95:795 96:471 97:250 98:805 99:34 101:55
106:1 107:4 108:129 109:917 110:477 111:720
112:320 113:391 114:493 115:670 116:972 117:680
118:689 119:1041 120:261 121:700 122:1615 123:1044
124:1319 125:1260 128:267 129:170 130:171 131:559
132:109 133:20 134:222 135:49 136:211 137:146
138:301 139:124 140:485 141:203 142:377 143:381
144:491 145:51 146:435 147:204 148:644 149:265
150:169 151:230 152:298 153:180 154:3 155:377
156:179 157:346 158:131 159:371 160:311 161:211
162:277 163:160 164:487 165:370 166:496 167:410
168:727 169:160 170:758 171:69 172:2 173:1265
174:525 175:322 177:36 178:798 180:814 181:4
182:384 183:243 184:294 186:1042 187:816 188:915
189:1032 190:4580 192:5802 193:4810 194:3545 195:3092
196:1204 197:4 198:3594 199:3862 200:5567 201:1598
202:8439 203:8478 204:4106 205:2311 206:2662 207:3072
208:3916 209:3486 210:2656 211:1355 212:1967 213:1785
214:757 215:63 216:4868 217:1663 218:556 219:374
220:1203 221:478 222:343 223:102
End of report
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