Routing Table Report 00:00 GMT Tue 27 Sep, 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: 378191
Prefixes after maximum aggregation: 169400
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 185225
Total ASes present in the Internet Routing Table: 38883
Prefixes per ASN: 9.73
Origin-only ASes present in the Internet Routing Table: 32221
Origin ASes announcing only one prefix: 15484
Transit ASes present in the Internet Routing Table: 5232
Transit-only ASes present in the Internet Routing Table: 145
Average AS path length visible in the Internet Routing Table: 4.1
Max AS path length visible: 32
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 4679
Unregistered ASNs in the Routing Table: 784
Number of 32-bit ASNs allocated by the RIRs: 1771
Number of 32-bit ASNs visible in the Routing Table: 1430
Prefixes from 32-bit ASNs in the Routing Table: 3286
Special use prefixes present in the Routing Table: 82
Prefixes being announced from unallocated address space: 96
Number of addresses announced to Internet: 2481115286
Equivalent to 147 /8s, 226 /16s and 208 /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: 91.4
Total number of prefixes smaller than registry allocations: 157108
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92036
Total APNIC prefixes after maximum aggregation: 29579
APNIC Deaggregation factor: 3.11
Prefixes being announced from the APNIC address blocks: 88657
Unique aggregates announced from the APNIC address blocks: 38155
APNIC Region origin ASes present in the Internet Routing Table: 4549
APNIC Prefixes per ASN: 19.49
APNIC Region origin ASes announcing only one prefix: 1262
APNIC Region transit ASes present in the Internet Routing Table: 716
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 23
Number of APNIC region 32-bit ASNs visible in the Routing Table: 89
Number of APNIC addresses announced to Internet: 628192768
Equivalent to 37 /8s, 113 /16s and 118 /24s
Percentage of available APNIC address space announced: 79.7
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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: 147270
Total ARIN prefixes after maximum aggregation: 75885
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 119053
Unique aggregates announced from the ARIN address blocks: 47979
ARIN Region origin ASes present in the Internet Routing Table: 14703
ARIN Prefixes per ASN: 8.10
ARIN Region origin ASes announcing only one prefix: 5654
ARIN Region transit ASes present in the Internet Routing Table: 1548
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 805076636
Equivalent to 47 /8s, 252 /16s and 126 /24s
Percentage of available ARIN address space announced: 64.0
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: 91349
Total RIPE prefixes after maximum aggregation: 50463
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 83265
Unique aggregates announced from the RIPE address blocks: 54046
RIPE Region origin ASes present in the Internet Routing Table: 15990
RIPE Prefixes per ASN: 5.21
RIPE Region origin ASes announcing only one prefix: 7963
RIPE Region transit ASes present in the Internet Routing Table: 2522
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1014
Number of RIPE addresses announced to Internet: 490158284
Equivalent to 29 /8s, 55 /16s and 56 /24s
Percentage of available RIPE address space announced: 79.0
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: 35523
Total LACNIC prefixes after maximum aggregation: 7821
LACNIC Deaggregation factor: 4.54
Prefixes being announced from the LACNIC address blocks: 34731
Unique aggregates announced from the LACNIC address blocks: 17914
LACNIC Region origin ASes present in the Internet Routing Table: 1530
LACNIC Prefixes per ASN: 22.70
LACNIC Region origin ASes announcing only one prefix: 451
LACNIC Region transit ASes present in the Internet Routing Table: 273
Average LACNIC Region AS path length visible: 4.7
Max LACNIC Region AS path length visible: 20
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 311
Number of LACNIC addresses announced to Internet: 89335048
Equivalent to 5 /8s, 83 /16s and 37 /24s
Percentage of available LACNIC address space announced: 59.2
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: 8530
Total AfriNIC prefixes after maximum aggregation: 2012
AfriNIC Deaggregation factor: 4.24
Prefixes being announced from the AfriNIC address blocks: 6605
Unique aggregates announced from the AfriNIC address blocks: 2002
AfriNIC Region origin ASes present in the Internet Routing Table: 488
AfriNIC Prefixes per ASN: 13.53
AfriNIC Region origin ASes announcing only one prefix: 154
AfriNIC Region transit ASes present in the Internet Routing Table: 105
Average AfriNIC Region AS path length visible: 3.8
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: 27394304
Equivalent to 1 /8s, 162 /16s and 1 /24s
Percentage of available AfriNIC address space announced: 40.8
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
17974 2007 519 33 PT TELEKOMUNIKASI INDONESIA
4766 1939 11056 650 Korea Telecom (KIX)
7545 1604 303 86 TPG Internet Pty Ltd
4755 1537 634 171 Videsh Sanchar Nigam Ltd. Aut
7552 1392 1064 7 Vietel Corporation
24560 1181 337 193 Bharti Airtel Ltd.
9829 1159 989 28 BSNL National Internet Backbo
4808 1091 2123 311 CNCGROUP IP network: China169
9583 1086 80 502 Sify Limited
18101 954 118 142 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 3561 3817 226 bellsouth.net, inc.
18566 1915 366 239 Covad Communications
1785 1827 680 124 AppliedTheory Corporation
7029 1724 1018 218 Windstream Communications Inc
4323 1624 1098 391 Time Warner Telecom
20115 1596 1543 633 Charter Communications
22773 1458 2907 99 Cox Communications, Inc.
30036 1420 264 677 Mediacom Communications Corp
19262 1395 4728 400 Verizon Global Networks
7018 1335 7048 866 AT&T WorldNet Services
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 1062 824 199 KPNQwest Backbone AS
8402 1036 352 13 Corbina telecom
34984 572 108 182 Tellcom Iletisim Hizmetleri
20940 548 184 423 Akamai Technologies European
9116 540 326 31 Goldenlines main autonomous s
6830 534 1813 325 UPC Distribution Services
3292 528 2082 407 TDC Tele Danmark
3320 493 8167 381 Deutsche Telekom AG
12479 474 594 8 Uni2 Autonomous System
8866 461 133 26 Bulgarian Telecommunication C
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 1661 307 160 TVCABLE BOGOTA
8151 1458 2815 350 Uninet S.A. de C.V.
28573 1369 1013 70 Types of queries are: POCs, o
7303 1162 681 173 Telecom Argentina Stet-France
14420 736 58 88 Types of queries are: POCs, o
6503 591 450 70 AVANTEL, S.A.
27947 584 56 75 Telconet S.A
22047 580 322 17 Types of queries are: POCs, o
10481 548 430 20 Prima S.A.
3816 535 232 98 COLOMBIA TELECOMUNICACIONES S
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 812 147 43 LINKdotNET AS number
8452 713 445 11 TEDATA
15475 450 74 8 Nile Online
36992 290 415 14 Etisalat MISR
3741 274 938 229 The Internet Solution
15706 244 32 6 Sudatel Internet Exchange Aut
6713 242 519 14 Itissalat Al-MAGHRIB
33776 239 13 8 Starcomms Nigeria Limited
12258 199 28 59 YEBO-AS
29571 191 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 3561 3817 226 bellsouth.net, inc.
23456 3286 776 1777 >>UNKNOWN<<
17974 2007 519 33 PT TELEKOMUNIKASI INDONESIA
4766 1939 11056 650 Korea Telecom (KIX)
18566 1915 366 239 Covad Communications
1785 1827 680 124 AppliedTheory Corporation
7029 1724 1018 218 Windstream Communications Inc
10620 1661 307 160 TVCABLE BOGOTA
4323 1624 1098 391 Time Warner Telecom
7545 1604 303 86 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
17974 2007 1974 PT TELEKOMUNIKASI INDONESIA
1785 1827 1703 AppliedTheory Corporation
18566 1915 1676 Covad Communications
7545 1604 1518 TPG Internet Pty Ltd
23456 3286 1509 >>UNKNOWN<<
7029 1724 1506 Windstream Communications Inc
10620 1661 1501 TVCABLE BOGOTA
7552 1392 1385 Vietel Corporation
4755 1537 1366 Videsh Sanchar Nigam Ltd. Aut
22773 1458 1359 Cox Communications, Inc.
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 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
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 /8:19 /9:12 /10:27 /11:81 /12:235
/13:464 /14:808 /15:1452 /16:12109 /17:6247 /18:10333
/19:20369 /20:28224 /21:27603 /22:36979 /23:35424 /24:196001
/25:74 /26:88 /27:122 /28:296 /29:102 /30:554
/31:73 /32:495
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2197 3561 bellsouth.net, inc.
18566 1870 1915 Covad Communications
23456 1564 3286 #
10620 1556 1661 TVCABLE BOGOTA
7029 1413 1724 Windstream Communications Inc
30036 1377 1420 Mediacom Communications Corp
11492 1114 1152 Cable One
7011 1058 1183 Citizens Utilities
1785 1053 1827 AppliedTheory Corporation
8402 983 1036 Corbina telecom
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:384 2:315 4:19 5:1 6:3 8:353
12:1962 13:1 14:549 15:13 16:3 17:8
20:9 23:35 24:1690 27:944 31:542 32:149
33:4 34:2 36:4 38:748 40:108 41:2606
42:48 44:3 46:992 47:3 49:262 50:425
52:13 54:2 55:4 56:2 57:47 58:880
59:493 60:377 61:1180 62:1099 63:1963 64:4098
65:2309 66:4010 67:1991 68:1293 69:3309 70:860
71:377 72:1886 73:1 74:2512 75:361 76:349
77:875 78:814 79:492 80:1122 81:846 82:516
83:524 84:638 85:1087 86:417 87:879 88:357
89:1599 90:267 91:4116 92:533 93:1293 94:1294
95:924 96:439 97:276 98:947 99:37 101:210
103:316 106:85 107:53 108:81 109:1038 110:673
111:790 112:322 113:476 114:570 115:695 116:909
117:706 118:900 119:1211 120:334 121:699 122:1612
123:1013 124:1343 125:1395 128:245 129:181 130:166
131:583 132:124 133:21 134:216 135:54 136:213
137:137 138:288 139:131 140:494 141:288 142:391
143:408 144:487 145:61 146:472 147:226 148:693
149:257 150:152 151:191 152:445 153:177 154:6
155:395 156:205 157:360 158:145 159:463 160:324
161:205 162:340 163:176 164:507 165:402 166:536
167:434 168:747 169:147 170:862 171:83 172:1
173:1662 174:657 175:412 176:217 177:285 178:1028
180:1035 181:30 182:630 183:223 184:367 185:1
186:1466 187:670 188:925 189:851 190:5121 192:5938
193:5027 194:3547 195:3101 196:1253 197:176 198:3607
199:4141 200:5523 201:1639 202:8555 203:8501 204:4260
205:2370 206:2735 207:2832 208:4162 209:3542 210:2726
211:1464 212:2107 213:1784 214:775 215:75 216:4951
217:1611 218:566 219:344 220:1230 221:510 222:344
223:262
End of report
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