Routing Table Report 00:00 GMT Thu 07 Apr, 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: 356762
Prefixes after maximum aggregation: 161236
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 174263
Total ASes present in the Internet Routing Table: 37216
Prefixes per ASN: 9.59
Origin-only ASes present in the Internet Routing Table: 31216
Origin ASes announcing only one prefix: 14993
Transit ASes present in the Internet Routing Table: 5034
Transit-only ASes present in the Internet Routing Table: 118
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 24
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 2816
Unregistered ASNs in the Routing Table: 266
Number of 32-bit ASNs allocated by the RIRs: 1260
Number of 32-bit ASNs visible in the Routing Table: 966
Prefixes from 32-bit ASNs in the Routing Table: 2162
Special use prefixes present in the Routing Table: 75
Prefixes being announced from unallocated address space: 201
Number of addresses announced to Internet: 2407422392
Equivalent to 143 /8s, 126 /16s and 89 /24s
Percentage of available address space announced: 65.0
Percentage of allocated address space announced: 65.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 90.2
Total number of prefixes smaller than registry allocations: 147683
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85584
Total APNIC prefixes after maximum aggregation: 28814
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 82657
Unique aggregates announced from the APNIC address blocks: 36754
APNIC Region origin ASes present in the Internet Routing Table: 4371
APNIC Prefixes per ASN: 18.91
APNIC Region origin ASes announcing only one prefix: 1220
APNIC Region transit ASes present in the Internet Routing Table: 695
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 47
Number of APNIC addresses announced to Internet: 605590977
Equivalent to 36 /8s, 24 /16s and 149 /24s
Percentage of available APNIC address space announced: 76.8
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: 141894
Total ARIN prefixes after maximum aggregation: 72901
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 114089
Unique aggregates announced from the ARIN address blocks: 45013
ARIN Region origin ASes present in the Internet Routing Table: 14321
ARIN Prefixes per ASN: 7.97
ARIN Region origin ASes announcing only one prefix: 5459
ARIN Region transit ASes present in the Internet Routing Table: 1455
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 11
Number of ARIN addresses announced to Internet: 797760024
Equivalent to 47 /8s, 140 /16s and 218 /24s
Percentage of available ARIN address space announced: 63.4
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: 86710
Total RIPE prefixes after maximum aggregation: 47825
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 79154
Unique aggregates announced from the RIPE address blocks: 50256
RIPE Region origin ASes present in the Internet Routing Table: 15508
RIPE Prefixes per ASN: 5.10
RIPE Region origin ASes announcing only one prefix: 7752
RIPE Region transit ASes present in the Internet Routing Table: 2457
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 23
Number of RIPE region 32-bit ASNs visible in the Routing Table: 714
Number of RIPE addresses announced to Internet: 466058428
Equivalent to 27 /8s, 199 /16s and 124 /24s
Percentage of available RIPE address space announced: 75.1
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: 32395
Total LACNIC prefixes after maximum aggregation: 7447
LACNIC Deaggregation factor: 4.35
Prefixes being announced from the LACNIC address blocks: 31347
Unique aggregates announced from the LACNIC address blocks: 16297
LACNIC Region origin ASes present in the Internet Routing Table: 1434
LACNIC Prefixes per ASN: 21.86
LACNIC Region origin ASes announcing only one prefix: 430
LACNIC Region transit ASes present in the Internet Routing Table: 257
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 189
Number of LACNIC addresses announced to Internet: 81840268
Equivalent to 4 /8s, 224 /16s and 200 /24s
Percentage of available LACNIC address space announced: 54.2
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: 7678
Total AfriNIC prefixes after maximum aggregation: 1830
AfriNIC Deaggregation factor: 4.20
Prefixes being announced from the AfriNIC address blocks: 6032
Unique aggregates announced from the AfriNIC address blocks: 1858
AfriNIC Region origin ASes present in the Internet Routing Table: 442
AfriNIC Prefixes per ASN: 13.65
AfriNIC Region origin ASes announcing only one prefix: 132
AfriNIC Region transit ASes present in the Internet Routing Table: 99
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 19
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 22706944
Equivalent to 1 /8s, 90 /16s and 123 /24s
Percentage of available AfriNIC address space announced: 33.8
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 1875 9507 605 Korea Telecom (KIX)
7545 1544 301 84 TPG Internet Pty Ltd
17974 1449 472 34 PT TELEKOMUNIKASI INDONESIA
4755 1437 378 165 Videsh Sanchar Nigam Ltd. Aut
24560 1137 322 204 Bharti Airtel Ltd.
9583 1055 77 494 Sify Limited
9829 971 841 55 BSNL National Internet Backbo
17488 956 162 97 Hathway IP Over Cable Interne
4808 951 2021 274 CNCGROUP IP network: China169
18101 935 116 139 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 3666 3838 262 bellsouth.net, inc.
4323 2534 1106 394 Time Warner Telecom
1785 1793 681 131 AppliedTheory Corporation
18566 1606 331 195 Covad Communications
6478 1605 305 34 AT&T Worldnet Services
20115 1586 1554 641 Charter Communications
19262 1489 4940 299 Verizon Global Networks
7018 1360 6929 886 AT&T WorldNet Services
22773 1292 2865 84 Cox Communications, Inc.
2386 1279 536 923 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 1010 796 169 KPNQwest Backbone AS
9116 544 326 31 Goldenlines main autonomous s
6830 515 1780 318 UPC Distribution Services
3292 508 2013 391 TDC Tele Danmark
34984 495 97 188 Tellcom Iletisim Hizmetleri
29049 469 34 35 AzerSat LLC.
20940 459 130 347 Akamai Technologies European
8866 447 134 26 Bulgarian Telecommunication C
8402 413 320 32 Corbina telecom
3320 412 7604 358 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 1408 262 153 TVCABLE BOGOTA
28573 1271 972 86 Types of queries are: POCs, o
8151 1240 2661 369 Uninet S.A. de C.V.
6503 1112 354 73 AVANTEL, S.A.
7303 924 465 147 Telecom Argentina Stet-France
14420 645 52 89 Types of queries are: POCs, o
22047 567 310 15 Types of queries are: POCs, o
3816 515 225 97 COLOMBIA TELECOMUNICACIONES S
27947 490 53 54 Telconet S.A
11172 488 99 82 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 838 445 11 TEDATA
24863 776 147 39 LINKdotNET AS number
15475 426 90 8 Nile Online
36992 293 287 13 Etisalat MISR
3741 266 985 227 The Internet Solution
6713 231 215 12 Itissalat Al-MAGHRIB
24835 231 78 10 RAYA Telecom - Egypt
33776 227 13 5 Starcomms Nigeria Limited
29571 191 17 11 Ci Telecom Autonomous system
16637 151 441 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 3666 3838 262 bellsouth.net, inc.
4323 2534 1106 394 Time Warner Telecom
23456 2162 612 1160 >>UNKNOWN<<
4766 1875 9507 605 Korea Telecom (KIX)
1785 1793 681 131 AppliedTheory Corporation
18566 1606 331 195 Covad Communications
6478 1605 305 34 AT&T Worldnet Services
20115 1586 1554 641 Charter Communications
7545 1544 301 84 TPG Internet Pty Ltd
19262 1489 4940 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 2534 2140 Time Warner Telecom
1785 1793 1662 AppliedTheory Corporation
6478 1605 1571 AT&T Worldnet Services
7545 1544 1460 TPG Internet Pty Ltd
17974 1449 1415 PT TELEKOMUNIKASI INDONESIA
18566 1606 1411 Covad Communications
4755 1437 1272 Videsh Sanchar Nigam Ltd. Aut
4766 1875 1270 Korea Telecom (KIX)
10620 1408 1255 TVCABLE BOGOTA
11492 1268 1253 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
44559 UNALLOCATED 2.56.0.0/16 29632 The NetAssist autono
44559 UNALLOCATED 2.57.0.0/16 29632 The NetAssist autono
44559 UNALLOCATED 2.58.0.0/16 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
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
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
1.3.0.0/16 38639 NTT Communications Corporatio
2.56.0.0/16 44559 >>UNKNOWN<<
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
31.0.0.0/15 8374 Polkomtel S.A.
31.2.0.0/17 8374 Polkomtel S.A.
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 /9:12 /10:26 /11:76 /12:220
/13:448 /14:777 /15:1405 /16:11690 /17:5960 /18:9747
/19:19616 /20:25602 /21:25732 /22:34045 /23:32739 /24:186066
/25:364 /26:345 /27:166 /28:174 /29:197 /30:651
/31:58 /32:626
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2260 3666 bellsouth.net, inc.
18566 1585 1606 Covad Communications
6478 1559 1605 AT&T Worldnet Services
4323 1357 2534 Time Warner Telecom
10620 1298 1408 TVCABLE BOGOTA
11492 1217 1268 Cable One
23456 1131 2162 >>UNKNOWN<<
7011 1068 1168 Citizens Utilities
1785 1057 1793 AppliedTheory Corporation
6503 896 1112 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:296 2:76 4:18 5:1 8:351 12:2009
13:1 14:433 15:15 16:3 17:8 20:9
23:5 24:1599 27:711 31:213 32:126 33:3
34:2 37:1 38:752 39:1 40:101 41:2383
42:1 44:3 46:801 47:4 49:172 50:215
52:13 55:3 56:2 57:40 58:851 59:488
60:387 61:1162 62:1018 63:1931 64:3905 65:2337
66:4330 67:1836 68:1254 69:3040 70:747 71:349
72:1931 73:3 74:2389 75:299 76:345 77:892
78:694 79:476 80:1105 81:830 82:522 83:472
84:668 85:1053 86:605 87:795 88:346 89:1621
90:175 91:3672 92:496 93:1064 94:1280 95:787
96:461 97:252 98:830 99:35 101:61 106:2
107:4 108:78 109:951 110:530 111:680 112:328
113:386 114:518 115:705 116:946 117:672 118:766
119:1130 120:288 121:715 122:1617 123:1056 124:1274
125:1252 128:266 129:177 130:172 131:565 132:101
133:20 134:219 135:49 136:213 137:142 138:302
139:117 140:483 141:173 142:380 143:387 144:480
145:52 146:442 147:213 148:629 149:263 150:169
151:187 152:298 153:180 154:3 155:390 156:187
157:354 158:132 159:381 160:317 161:241 162:276
163:166 164:489 165:368 166:504 167:417 168:721
169:155 170:778 171:75 172:2 173:1277 174:537
175:351 177:75 178:818 180:810 181:5 182:418
183:199 184:322 185:1 186:1122 187:916 188:940
189:1041 190:4818 192:5806 193:4825 194:3516 195:3080
196:1218 197:17 198:3596 199:3899 200:5563 201:1497
202:8383 203:8461 204:4131 205:2324 206:2670 207:3008
208:3935 209:3511 210:2728 211:1365 212:2032 213:1767
214:735 215:66 216:4888 217:1648 218:559 219:384
220:1196 221:481 222:312 223:117
End of report
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