Routing Table Report 00:00 GMT Fri 15 Jul, 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: 369262
Prefixes after maximum aggregation: 166604
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 180528
Total ASes present in the Internet Routing Table: 38231
Prefixes per ASN: 9.66
Origin-only ASes present in the Internet Routing Table: 31779
Origin ASes announcing only one prefix: 15220
Transit ASes present in the Internet Routing Table: 5188
Transit-only ASes present in the Internet Routing Table: 128
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 31
Max AS path prepend of ASN (22394) 27
Prefixes from unregistered ASNs in the Routing Table: 4020
Unregistered ASNs in the Routing Table: 556
Number of 32-bit ASNs allocated by the RIRs: 1551
Number of 32-bit ASNs visible in the Routing Table: 1264
Prefixes from 32-bit ASNs in the Routing Table: 2935
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 124
Number of addresses announced to Internet: 2478619463
Equivalent to 147 /8s, 188 /16s and 187 /24s
Percentage of available address space announced: 66.9
Percentage of allocated address space announced: 66.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.1
Total number of prefixes smaller than registry allocations: 153898
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 88145
Total APNIC prefixes after maximum aggregation: 29144
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 84995
Unique aggregates announced from the APNIC address blocks: 37401
APNIC Region origin ASes present in the Internet Routing Table: 4499
APNIC Prefixes per ASN: 18.89
APNIC Region origin ASes announcing only one prefix: 1263
APNIC Region transit ASes present in the Internet Routing Table: 706
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 60
Number of APNIC addresses announced to Internet: 621663681
Equivalent to 37 /8s, 13 /16s and 213 /24s
Percentage of available APNIC address space announced: 78.8
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: 145163
Total ARIN prefixes after maximum aggregation: 75029
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 116745
Unique aggregates announced from the ARIN address blocks: 46668
ARIN Region origin ASes present in the Internet Routing Table: 14492
ARIN Prefixes per ASN: 8.06
ARIN Region origin ASes announcing only one prefix: 5524
ARIN Region transit ASes present in the Internet Routing Table: 1494
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 31
Number of ARIN region 32-bit ASNs visible in the Routing Table: 13
Number of ARIN addresses announced to Internet: 803137944
Equivalent to 47 /8s, 222 /16s and 233 /24s
Percentage of available ARIN address space announced: 63.8
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: 90058
Total RIPE prefixes after maximum aggregation: 49603
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 82649
Unique aggregates announced from the RIPE address blocks: 52705
RIPE Region origin ASes present in the Internet Routing Table: 15843
RIPE Prefixes per ASN: 5.22
RIPE Region origin ASes announcing only one prefix: 7839
RIPE Region transit ASes present in the Internet Routing Table: 2531
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 25
Number of RIPE region 32-bit ASNs visible in the Routing Table: 923
Number of RIPE addresses announced to Internet: 479970764
Equivalent to 28 /8s, 155 /16s and 197 /24s
Percentage of available RIPE address space announced: 77.3
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: 34194
Total LACNIC prefixes after maximum aggregation: 7624
LACNIC Deaggregation factor: 4.49
Prefixes being announced from the LACNIC address blocks: 33283
Unique aggregates announced from the LACNIC address blocks: 17035
LACNIC Region origin ASes present in the Internet Routing Table: 1484
LACNIC Prefixes per ASN: 22.43
LACNIC Region origin ASes announcing only one prefix: 446
LACNIC Region transit ASes present in the Internet Routing Table: 265
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: 264
Number of LACNIC addresses announced to Internet: 85980680
Equivalent to 5 /8s, 31 /16s and 246 /24s
Percentage of available LACNIC address space announced: 56.9
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: 8444
Total AfriNIC prefixes after maximum aggregation: 1976
AfriNIC Deaggregation factor: 4.27
Prefixes being announced from the AfriNIC address blocks: 6523
Unique aggregates announced from the AfriNIC address blocks: 2002
AfriNIC Region origin ASes present in the Internet Routing Table: 471
AfriNIC Prefixes per ASN: 13.85
AfriNIC Region origin ASes announcing only one prefix: 148
AfriNIC Region transit ASes present in the Internet Routing Table: 106
Average AfriNIC Region AS path length visible: 4.3
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 24420864
Equivalent to 1 /8s, 116 /16s and 162 /24s
Percentage of available AfriNIC address space announced: 36.4
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 1911 11052 634 Korea Telecom (KIX)
7545 1553 301 85 TPG Internet Pty Ltd
17974 1548 456 43 PT TELEKOMUNIKASI INDONESIA
4755 1502 375 167 Videsh Sanchar Nigam Ltd. Aut
24560 1154 336 187 Bharti Airtel Ltd.
9829 1106 923 47 BSNL National Internet Backbo
9583 1064 78 504 Sify Limited
17488 980 186 110 Hathway IP Over Cable Interne
4808 953 2009 274 CNCGROUP IP network: China169
18101 932 116 139 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 3595 3818 241 bellsouth.net, inc.
18566 1957 372 223 Covad Communications
1785 1808 681 122 AppliedTheory Corporation
4323 1655 1098 401 Time Warner Telecom
20115 1594 1534 627 Charter Communications
19262 1428 4784 393 Verizon Global Networks
7018 1374 7085 900 AT&T WorldNet Services
7029 1368 975 210 Windstream Communications Inc
22773 1351 2897 88 Cox Communications, Inc.
2386 1262 521 907 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 1037 797 186 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 536 106 184 Tellcom Iletisim Hizmetleri
3292 522 2077 402 TDC Tele Danmark
6830 513 1780 317 UPC Distribution Services
20940 461 131 356 Akamai Technologies European
12479 458 593 7 Uni2 Autonomous System
8866 451 133 25 Bulgarian Telecommunication C
29049 432 32 47 AzerSat LLC.
3320 422 8151 368 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 1543 282 158 TVCABLE BOGOTA
8151 1463 2728 357 Uninet S.A. de C.V.
28573 1277 995 78 Types of queries are: POCs, o
7303 1009 512 177 Telecom Argentina Stet-France
6503 760 354 75 AVANTEL, S.A.
14420 690 55 84 Types of queries are: POCs, o
22047 576 322 17 Types of queries are: POCs, o
10481 548 430 20 Prima S.A.
3816 534 230 96 COLOMBIA TELECOMUNICACIONES S
27947 520 53 53 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
24863 795 147 36 LINKdotNET AS number
8452 780 445 11 TEDATA
15475 513 74 8 Nile Online
36992 315 415 14 Etisalat MISR
16637 294 441 87 Johnnic e-Ventures
3741 261 937 223 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 227 13 5 Starcomms Nigeria Limited
24835 211 78 10 RAYA Telecom - Egypt
29571 158 17 11 Ci Telecom Autonomous system
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 3595 3818 241 bellsouth.net, inc.
23456 2935 707 1567 >>UNKNOWN<<
18566 1957 372 223 Covad Communications
4766 1911 11052 634 Korea Telecom (KIX)
1785 1808 681 122 AppliedTheory Corporation
4323 1655 1098 401 Time Warner Telecom
20115 1594 1534 627 Charter Communications
7545 1553 301 85 TPG Internet Pty Ltd
17974 1548 456 43 PT TELEKOMUNIKASI INDONESIA
10620 1543 282 158 TVCABLE BOGOTA
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 1957 1734 Covad Communications
1785 1808 1686 AppliedTheory Corporation
17974 1548 1505 PT TELEKOMUNIKASI INDONESIA
7545 1553 1468 TPG Internet Pty Ltd
10620 1543 1385 TVCABLE BOGOTA
23456 2935 1368 >>UNKNOWN<<
4755 1502 1335 Videsh Sanchar Nigam Ltd. Aut
4766 1911 1277 Korea Telecom (KIX)
22773 1351 1263 Cox Communications, Inc.
4323 1655 1254 Time Warner Telecom
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
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
23502 UNALLOCATED 12.44.44.0/24 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
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
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 /8:21 /9:12 /10:26 /11:80 /12:232
/13:464 /14:801 /15:1424 /16:12118 /17:6136 /18:10125
/19:20042 /20:27060 /21:26760 /22:35191 /23:34253 /24:191508
/25:390 /26:351 /27:182 /28:369 /29:276 /30:702
/31:63 /32:676
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2212 3595 bellsouth.net, inc.
18566 1907 1957 Covad Communications
23456 1441 2935 >>UNKNOWN<<
10620 1438 1543 TVCABLE BOGOTA
11492 1097 1143 Cable One
7029 1063 1368 Windstream Communications Inc
7011 1055 1157 Citizens Utilities
6478 1054 1083 AT&T Worldnet Services
1785 1053 1808 AppliedTheory Corporation
286 898 1037 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:325 2:64 4:20 5:1 6:3 8:338
12:1972 13:1 14:488 15:15 16:3 17:5
20:10 23:14 24:1686 27:818 31:505 32:135
33:4 34:2 36:4 38:747 40:103 41:2567
42:32 44:3 46:1044 47:3 49:200 50:469
52:13 54:2 55:6 56:2 57:45 58:864
59:479 60:386 61:1124 62:1058 63:1958 64:4010
65:2301 66:3924 67:1907 68:1266 69:3156 70:799
71:389 72:1920 73:2 74:2436 75:329 76:349
77:926 78:717 79:479 80:1126 81:883 82:513
83:459 84:701 85:1084 86:542 87:782 88:341
89:1576 90:224 91:3976 92:529 93:1071 94:1370
95:911 96:416 97:259 98:927 99:37 101:77
103:132 106:10 107:22 108:79 109:1032 110:614
111:711 112:304 113:408 114:556 115:677 116:985
117:667 118:825 119:1163 120:314 121:695 122:1606
123:972 124:1304 125:1235 128:247 129:175 130:169
131:578 132:111 133:21 134:214 135:48 136:216
137:137 138:272 139:129 140:482 141:244 142:406
143:419 144:484 145:55 146:453 147:224 148:680
149:248 150:160 151:189 152:342 153:182 154:4
155:397 156:199 157:353 158:138 159:450 160:314
161:202 162:309 163:164 164:503 165:392 166:531
167:435 168:736 169:154 170:851 171:78 172:1
173:1636 174:612 175:374 176:143 177:170 178:1014
180:903 181:24 182:494 183:229 184:346 185:1
186:1286 187:735 188:898 189:943 190:4975 192:5929
193:5017 194:3589 195:3198 196:1252 197:43 198:3597
199:3981 200:5570 201:1491 202:8428 203:8436 204:4239
205:2352 206:2729 207:2822 208:4086 209:3541 210:2702
211:1456 212:2157 213:1822 214:780 215:69 216:4993
217:1643 218:545 219:362 220:1205 221:498 222:338
223:216
End of report
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