Routing Table Report 00:00 GMT Wed 09 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: 353980
Prefixes after maximum aggregation: 158981
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 172693
Total ASes present in the Internet Routing Table: 36042
Prefixes per ASN: 9.82
Origin-only ASes present in the Internet Routing Table: 31060
Origin ASes announcing only one prefix: 14891
Transit ASes present in the Internet Routing Table: 4982
Transit-only ASes present in the Internet Routing Table: 119
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 26
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 460
Unregistered ASNs in the Routing Table: 197
Number of 32-bit ASNs allocated by the RIRs: 1179
Prefixes from 32-bit ASNs in the Routing Table: 3
Special use prefixes present in the Routing Table: 74
Prefixes being announced from unallocated address space: 262
Number of addresses announced to Internet: 2468107532
Equivalent to 147 /8s, 28 /16s and 85 /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: 146362
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85127
Total APNIC prefixes after maximum aggregation: 28603
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 82030
Unique aggregates announced from the APNIC address blocks: 36324
APNIC Region origin ASes present in the Internet Routing Table: 4337
APNIC Prefixes per ASN: 18.91
APNIC Region origin ASes announcing only one prefix: 1214
APNIC Region transit ASes present in the Internet Routing Table: 685
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 595614145
Equivalent to 35 /8s, 128 /16s and 89 /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: 143156
Total ARIN prefixes after maximum aggregation: 73651
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113468
Unique aggregates announced from the ARIN address blocks: 44906
ARIN Region origin ASes present in the Internet Routing Table: 14242
ARIN Prefixes per ASN: 7.97
ARIN Region origin ASes announcing only one prefix: 5388
ARIN Region transit ASes present in the Internet Routing Table: 1449
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 796406168
Equivalent to 47 /8s, 120 /16s and 49 /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: 85747
Total RIPE prefixes after maximum aggregation: 47377
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 78192
Unique aggregates announced from the RIPE address blocks: 49452
RIPE Region origin ASes present in the Internet Routing Table: 15413
RIPE Prefixes per ASN: 5.07
RIPE Region origin ASes announcing only one prefix: 7728
RIPE Region transit ASes present in the Internet Routing Table: 2419
Average RIPE Region AS path length visible: 4.1
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 480993165
Equivalent to 28 /8s, 171 /16s and 95 /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: 32150
Total LACNIC prefixes after maximum aggregation: 7432
LACNIC Deaggregation factor: 4.33
Prefixes being announced from the LACNIC address blocks: 30977
Unique aggregates announced from the LACNIC address blocks: 16134
LACNIC Region origin ASes present in the Internet Routing Table: 1440
LACNIC Prefixes per ASN: 21.51
LACNIC Region origin ASes announcing only one prefix: 433
LACNIC Region transit ASes present in the Internet Routing Table: 266
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 81358476
Equivalent to 4 /8s, 217 /16s and 110 /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: 7546
Total AfriNIC prefixes after maximum aggregation: 1811
AfriNIC Deaggregation factor: 4.17
Prefixes being announced from the AfriNIC address blocks: 5925
Unique aggregates announced from the AfriNIC address blocks: 1866
AfriNIC Region origin ASes present in the Internet Routing Table: 433
AfriNIC Prefixes per ASN: 13.68
AfriNIC Region origin ASes announcing only one prefix: 128
AfriNIC Region transit ASes present in the Internet Routing Table: 98
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 21897216
Equivalent to 1 /8s, 78 /16s and 32 /24s
Percentage of available AfriNIC address space announced: 32.6
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 1867 9501 591 Korea Telecom (KIX)
7545 1582 301 83 TPG Internet Pty Ltd
4755 1423 633 164 Videsh Sanchar Nigam Ltd. Aut
17974 1407 475 29 PT TELEKOMUNIKASI INDONESIA
24560 1125 324 186 Bharti Airtel Ltd.
9583 1045 77 488 Sify Limited
4808 1008 2104 288 CNCGROUP IP network: China169
9829 1001 867 52 BSNL National Internet Backbo
17488 957 162 103 Hathway IP Over Cable Interne
18101 933 117 141 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 3681 3839 260 bellsouth.net, inc.
4323 2578 1125 403 Time Warner Telecom
19262 1830 4953 283 Verizon Global Networks
1785 1794 697 132 AppliedTheory Corporation
20115 1577 1537 650 Charter Communications
6478 1532 298 91 AT&T Worldnet Services
18566 1524 326 180 Covad Communications
7018 1378 6748 901 AT&T WorldNet Services
2386 1297 538 937 AT&T Data Communications Serv
11492 1292 236 68 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 1005 761 160 KPNQwest Backbone AS
9116 545 328 32 Goldenlines main autonomous s
6830 517 1780 319 UPC Distribution Services
3292 505 1996 390 TDC Tele Danmark
9198 470 267 15 Kazakhtelecom Corporate Sales
34984 466 98 146 Tellcom Iletisim Hizmetleri
8866 443 133 23 Bulgarian Telecommunication C
20940 420 99 323 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 1368 2683 364 Uninet S.A. de C.V.
28573 1239 964 84 Types of queries are: POCs, o
6503 1178 354 74 AVANTEL, S.A.
7303 911 464 146 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 514 225 101 COLOMBIA TELECOMUNICACIONES S
7738 479 922 30 Telecomunicacoes da Bahia S.A
27947 471 53 50 Telconet 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 783 445 11 TEDATA
24863 770 147 39 LINKdotNET AS number
15475 446 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 144 422 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 3681 3839 260 bellsouth.net, inc.
4323 2578 1125 403 Time Warner Telecom
4766 1867 9501 591 Korea Telecom (KIX)
19262 1830 4953 283 Verizon Global Networks
1785 1794 697 132 AppliedTheory Corporation
7545 1582 301 83 TPG Internet Pty Ltd
20115 1577 1537 650 Charter Communications
6478 1532 298 91 AT&T Worldnet Services
18566 1524 326 180 Covad Communications
4755 1423 633 164 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 2578 2175 Time Warner Telecom
1785 1794 1662 AppliedTheory Corporation
19262 1830 1547 Verizon Global Networks
7545 1582 1499 TPG Internet Pty Ltd
6478 1532 1441 AT&T Worldnet Services
17974 1407 1378 PT TELEKOMUNIKASI INDONESIA
18566 1524 1344 Covad Communications
4766 1867 1276 Korea Telecom (KIX)
4755 1423 1259 Videsh Sanchar Nigam Ltd. Aut
11492 1292 1224 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
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 /16:11688 /17:5886 /18:9653
/19:19508 /20:25311 /21:25515 /22:33883 /23:32468 /24:184425
/25:382 /26:348 /27:171 /28:305 /29:181 /30:624
/31:52 /32:610
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2270 3681 bellsouth.net, inc.
18566 1502 1524 Covad Communications
6478 1486 1532 AT&T Worldnet Services
4323 1386 2578 Time Warner Telecom
10620 1275 1384 TVCABLE BOGOTA
11492 1249 1292 Cable One
1785 1055 1794 AppliedTheory Corporation
7011 1055 1156 Citizens Utilities
6503 959 1178 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)
----------------------------------------------
1:263 2:62 4:18 5:1 8:341 12:2031
13:1 14:428 15:15 16:3 17:8 20:9
23:1 24:1520 27:605 31:4 32:127 33:4
34:2 36:2 37:1 38:711 39:1 40:101
41:2299 42:13 44:3 46:711 47:4 49:164
50:184 52:13 55:3 56:2 57:43 58:869
59:480 60:384 61:1112 62:1037 63:1932 64:3882
65:2352 66:4345 67:1805 68:1222 69:2985 70:745
71:412 72:2037 73:3 74:2401 75:305 76:349
77:854 78:700 79:445 80:1099 81:808 82:534
83:474 84:658 85:1063 86:574 87:785 88:362
89:1599 90:171 91:3586 92:499 93:1067 94:1248
95:789 96:471 97:252 98:817 99:34 101:51
106:1 107:4 108:129 109:914 110:478 111:720
112:320 113:391 114:509 115:668 116:971 117:679
118:689 119:1045 120:260 121:704 122:1623 123:1045
124:1311 125:1260 128:267 129:170 130:171 131:561
132:108 133:20 134:221 135:49 136:211 137:146
138:301 139:131 140:487 141:203 142:376 143:382
144:490 145:51 146:435 147:204 148:641 149:265
150:168 151:230 152:298 153:180 154:3 155:377
156:179 157:346 158:131 159:371 160:311 161:211
162:278 163:160 164:487 165:360 166:501 167:410
168:722 169:159 170:758 171:69 172:2 173:1263
174:525 175:326 177:35 178:796 180:814 181:4
182:403 183:243 184:291 186:1040 187:812 188:915
189:1032 190:4593 192:5807 193:4818 194:3540 195:3080
196:1201 197:4 198:3593 199:3863 200:5582 201:1596
202:8433 203:8477 204:4107 205:2313 206:2664 207:3070
208:3910 209:3490 210:2657 211:1355 212:1969 213:1780
214:759 215:63 216:4866 217:1662 218:554 219:374
220:1206 221:478 222:343 223:102
End of report
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