Routing Table Report 00:00 GMT Mon 14 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: 354954
Prefixes after maximum aggregation: 159231
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 173060
Total ASes present in the Internet Routing Table: 36091
Prefixes per ASN: 9.83
Origin-only ASes present in the Internet Routing Table: 31177
Origin ASes announcing only one prefix: 14927
Transit ASes present in the Internet Routing Table: 4914
Transit-only ASes present in the Internet Routing Table: 118
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 31
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 488
Unregistered ASNs in the Routing Table: 215
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: 253
Number of addresses announced to Internet: 2469044043
Equivalent to 147 /8s, 42 /16s and 159 /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: 146856
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85404
Total APNIC prefixes after maximum aggregation: 28618
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 82307
Unique aggregates announced from the APNIC address blocks: 36331
APNIC Region origin ASes present in the Internet Routing Table: 4333
APNIC Prefixes per ASN: 19.00
APNIC Region origin ASes announcing only one prefix: 1215
APNIC Region transit ASes present in the Internet Routing Table: 682
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 595763393
Equivalent to 35 /8s, 130 /16s and 160 /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: 143463
Total ARIN prefixes after maximum aggregation: 73761
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113732
Unique aggregates announced from the ARIN address blocks: 44930
ARIN Region origin ASes present in the Internet Routing Table: 14264
ARIN Prefixes per ASN: 7.97
ARIN Region origin ASes announcing only one prefix: 5402
ARIN Region transit ASes present in the Internet Routing Table: 1457
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 796466456
Equivalent to 47 /8s, 121 /16s and 29 /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: 85995
Total RIPE prefixes after maximum aggregation: 47523
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 78490
Unique aggregates announced from the RIPE address blocks: 49822
RIPE Region origin ASes present in the Internet Routing Table: 15447
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7749
RIPE Region transit ASes present in the Internet Routing Table: 2367
Average RIPE Region AS path length visible: 3.8
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 481436236
Equivalent to 28 /8s, 178 /16s and 34 /24s
Percentage of available RIPE address space announced: 77.6
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: 32290
Total LACNIC prefixes after maximum aggregation: 7400
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 31184
Unique aggregates announced from the LACNIC address blocks: 16135
LACNIC Region origin ASes present in the Internet Routing Table: 1437
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: 260
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 81412236
Equivalent to 4 /8s, 218 /16s and 64 /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: 7539
Total AfriNIC prefixes after maximum aggregation: 1825
AfriNIC Deaggregation factor: 4.13
Prefixes being announced from the AfriNIC address blocks: 5918
Unique aggregates announced from the AfriNIC address blocks: 1853
AfriNIC Region origin ASes present in the Internet Routing Table: 435
AfriNIC Prefixes per ASN: 13.60
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: 4.3
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 22067968
Equivalent to 1 /8s, 80 /16s and 187 /24s
Percentage of available AfriNIC address space announced: 32.9
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 1858 9500 588 Korea Telecom (KIX)
7545 1575 301 84 TPG Internet Pty Ltd
4755 1464 393 153 Videsh Sanchar Nigam Ltd. Aut
17974 1399 468 29 PT TELEKOMUNIKASI INDONESIA
24560 1122 324 186 Bharti Airtel Ltd.
9583 1046 76 486 Sify Limited
9829 1005 868 53 BSNL National Internet Backbo
4808 995 2068 281 CNCGROUP IP network: China169
17488 960 162 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 3677 3839 259 bellsouth.net, inc.
4323 2583 1109 403 Time Warner Telecom
19262 1831 4953 283 Verizon Global Networks
1785 1794 681 131 AppliedTheory Corporation
20115 1577 1537 650 Charter Communications
6478 1545 299 72 AT&T Worldnet Services
18566 1524 326 180 Covad Communications
7018 1368 6738 890 AT&T WorldNet Services
11492 1313 237 64 Cable One
2386 1293 537 932 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 1011 796 165 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 450 95 201 Tellcom Iletisim Hizmetleri
8866 445 133 24 Bulgarian Telecommunication C
8402 425 320 32 Corbina telecom
20940 414 97 319 Akamai Technologies European
3320 407 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 1384 258 163 TVCABLE BOGOTA
8151 1364 2681 364 Uninet S.A. de C.V.
28573 1237 963 83 Types of queries are: POCs, o
6503 1184 354 74 AVANTEL, S.A.
7303 919 464 148 Telecom Argentina Stet-France
14420 634 51 88 Types of queries are: POCs, o
22047 541 310 15 Types of queries are: POCs, o
3816 513 224 99 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 794 445 11 TEDATA
24863 773 147 39 LINKdotNET AS number
15475 423 90 8 Nile Online
36992 299 271 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 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 3677 3839 259 bellsouth.net, inc.
4323 2583 1109 403 Time Warner Telecom
4766 1858 9500 588 Korea Telecom (KIX)
19262 1831 4953 283 Verizon Global Networks
1785 1794 681 131 AppliedTheory Corporation
20115 1577 1537 650 Charter Communications
7545 1575 301 84 TPG Internet Pty Ltd
6478 1545 299 72 AT&T Worldnet Services
18566 1524 326 180 Covad Communications
4755 1464 393 153 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 2583 2180 Time Warner Telecom
1785 1794 1663 AppliedTheory Corporation
19262 1831 1548 Verizon Global Networks
7545 1575 1491 TPG Internet Pty Ltd
6478 1545 1473 AT&T Worldnet Services
17974 1399 1370 PT TELEKOMUNIKASI INDONESIA
18566 1524 1344 Covad Communications
4755 1464 1311 Videsh Sanchar Nigam Ltd. Aut
4766 1858 1270 Korea Telecom (KIX)
11492 1313 1249 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
/13:447 /14:773 /15:1398 /16:11682 /17:5905 /18:9665
/19:19548 /20:25333 /21:25630 /22:33927 /23:32560 /24:185012
/25:367 /26:348 /27:170 /28:305 /29:189 /30:663
/31:54 /32:626
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2268 3677 bellsouth.net, inc.
18566 1503 1524 Covad Communications
6478 1499 1545 AT&T Worldnet Services
4323 1391 2583 Time Warner Telecom
10620 1275 1384 TVCABLE BOGOTA
11492 1270 1313 Cable One
7011 1064 1164 Citizens Utilities
1785 1055 1794 AppliedTheory Corporation
6503 961 1184 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)
----------------------------------------------
1:271 2:79 4:18 5:1 8:343 12:2028
13:1 14:429 15:15 16:3 17:8 20:9
23:3 24:1531 27:612 31:2 32:127 33:4
34:2 36:2 37:1 38:715 39:1 40:101
41:2315 42:13 44:3 46:714 47:4 49:164
50:201 52:13 55:2 56:2 57:43 58:859
59:497 60:386 61:1138 62:1031 63:1929 64:3890
65:2356 66:4356 67:1799 68:1231 69:2997 70:748
71:405 72:2040 73:3 74:2411 75:297 76:351
77:852 78:700 79:459 80:1111 81:824 82:528
83:472 84:657 85:1065 86:572 87:785 88:354
89:1613 90:175 91:3631 92:490 93:1051 94:1238
95:799 96:471 97:251 98:826 99:34 101:63
106:1 107:4 108:129 109:914 110:472 111:715
112:319 113:378 114:498 115:710 116:976 117:674
118:714 119:1035 120:261 121:756 122:1615 123:1039
124:1319 125:1264 128:236 129:171 130:171 131:560
132:109 133:20 134:218 135:49 136:212 137:145
138:299 139:122 140:487 141:203 142:378 143:377
144:488 145:52 146:407 147:215 148:637 149:263
150:159 151:229 152:298 153:180 154:3 155:369
156:179 157:345 158:131 159:373 160:312 161:212
162:277 163:160 164:488 165:369 166:498 167:410
168:728 169:159 170:757 171:69 172:2 173:1276
174:535 175:324 177:35 178:808 180:813 181:4
182:388 183:243 184:298 186:1048 187:837 188:931
189:1032 190:4710 192:5801 193:4819 194:3540 195:3093
196:1215 197:4 198:3594 199:3878 200:5593 201:1591
202:8470 203:8499 204:4111 205:2313 206:2665 207:3054
208:3932 209:3485 210:2695 211:1352 212:1997 213:1774
214:760 215:63 216:4867 217:1663 218:557 219:381
220:1202 221:474 222:344 223:100
End of report
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