Routing Table Report 00:00 GMT Wed 31 Aug, 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: 373094
Prefixes after maximum aggregation: 168166
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 178407
Total ASes present in the Internet Routing Table: 38641
Prefixes per ASN: 9.66
Origin-only ASes present in the Internet Routing Table: 32171
Origin ASes announcing only one prefix: 15403
Transit ASes present in the Internet Routing Table: 5101
Transit-only ASes present in the Internet Routing Table: 135
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 37
Max AS path prepend of ASN (22394) 33
Prefixes from unregistered ASNs in the Routing Table: 4373
Unregistered ASNs in the Routing Table: 671
Number of 32-bit ASNs allocated by the RIRs: 1685
Number of 32-bit ASNs visible in the Routing Table: 1369
Prefixes from 32-bit ASNs in the Routing Table: 3184
Special use prefixes present in the Routing Table: 79
Prefixes being announced from unallocated address space: 113
Number of addresses announced to Internet: 2303713551
Equivalent to 137 /8s, 79 /16s and 225 /24s
Percentage of available address space announced: 62.2
Percentage of allocated address space announced: 62.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.2
Total number of prefixes smaller than registry allocations: 154879
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90520
Total APNIC prefixes after maximum aggregation: 29462
APNIC Deaggregation factor: 3.07
Prefixes being announced from the APNIC address blocks: 87115
Unique aggregates announced from the APNIC address blocks: 36665
APNIC Region origin ASes present in the Internet Routing Table: 4536
APNIC Prefixes per ASN: 19.21
APNIC Region origin ASes announcing only one prefix: 1264
APNIC Region transit ASes present in the Internet Routing Table: 692
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 17
Number of APNIC region 32-bit ASNs visible in the Routing Table: 77
Number of APNIC addresses announced to Internet: 609608448
Equivalent to 36 /8s, 85 /16s and 227 /24s
Percentage of available APNIC address space announced: 77.3
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: 146092
Total ARIN prefixes after maximum aggregation: 75385
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 117706
Unique aggregates announced from the ARIN address blocks: 44710
ARIN Region origin ASes present in the Internet Routing Table: 14626
ARIN Prefixes per ASN: 8.05
ARIN Region origin ASes announcing only one prefix: 5607
ARIN Region transit ASes present in the Internet Routing Table: 1499
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 37
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 666697240
Equivalent to 39 /8s, 188 /16s and 254 /24s
Percentage of available ARIN address space announced: 53.0
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: 89889
Total RIPE prefixes after maximum aggregation: 50019
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 82225
Unique aggregates announced from the RIPE address blocks: 52510
RIPE Region origin ASes present in the Internet Routing Table: 15938
RIPE Prefixes per ASN: 5.16
RIPE Region origin ASes announcing only one prefix: 7933
RIPE Region transit ASes present in the Internet Routing Table: 2453
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 22
Number of RIPE region 32-bit ASNs visible in the Routing Table: 979
Number of RIPE addresses announced to Internet: 473574092
Equivalent to 28 /8s, 58 /16s and 42 /24s
Percentage of available RIPE address space announced: 76.3
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: 34839
Total LACNIC prefixes after maximum aggregation: 7742
LACNIC Deaggregation factor: 4.50
Prefixes being announced from the LACNIC address blocks: 34040
Unique aggregates announced from the LACNIC address blocks: 17509
LACNIC Region origin ASes present in the Internet Routing Table: 1510
LACNIC Prefixes per ASN: 22.54
LACNIC Region origin ASes announcing only one prefix: 449
LACNIC Region transit ASes present in the Internet Routing Table: 276
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 297
Number of LACNIC addresses announced to Internet: 87824136
Equivalent to 5 /8s, 60 /16s and 23 /24s
Percentage of available LACNIC address space announced: 58.2
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: 8365
Total AfriNIC prefixes after maximum aggregation: 2072
AfriNIC Deaggregation factor: 4.04
Prefixes being announced from the AfriNIC address blocks: 6461
Unique aggregates announced from the AfriNIC address blocks: 2027
AfriNIC Region origin ASes present in the Internet Routing Table: 479
AfriNIC Prefixes per ASN: 13.49
AfriNIC Region origin ASes announcing only one prefix: 150
AfriNIC Region transit ASes present in the Internet Routing Table: 108
Average AfriNIC Region AS path length visible: 3.9
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: 26791680
Equivalent to 1 /8s, 152 /16s and 207 /24s
Percentage of available AfriNIC address space announced: 39.9
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
17974 1980 516 31 PT TELEKOMUNIKASI INDONESIA
4766 1942 11038 647 Korea Telecom (KIX)
7545 1573 301 83 TPG Internet Pty Ltd
4755 1534 634 166 Videsh Sanchar Nigam Ltd. Aut
24560 1198 336 189 Bharti Airtel Ltd.
9829 1153 989 28 BSNL National Internet Backbo
9583 1073 79 503 Sify Limited
17488 1036 191 149 Hathway IP Over Cable Interne
4808 1033 2076 297 CNCGROUP IP network: China169
7552 1000 1062 11 Vietel Corporation
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 3578 3817 228 bellsouth.net, inc.
18566 1912 364 240 Covad Communications
1785 1825 681 123 AppliedTheory Corporation
7029 1618 1033 208 Windstream Communications Inc
4323 1615 1101 396 Time Warner Telecom
20115 1589 1539 632 Charter Communications
22773 1443 2903 96 Cox Communications, Inc.
19262 1404 4776 397 Verizon Global Networks
7018 1339 7051 878 AT&T WorldNet Services
2386 1212 514 873 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 1045 800 193 KPNQwest Backbone AS
34984 541 107 182 Tellcom Iletisim Hizmetleri
9116 540 326 31 Goldenlines main autonomous s
6830 524 1811 321 UPC Distribution Services
3292 522 2080 405 TDC Tele Danmark
20940 497 148 387 Akamai Technologies European
12479 463 593 7 Uni2 Autonomous System
8866 459 133 26 Bulgarian Telecommunication C
29049 424 31 55 AzerSat LLC.
3320 423 8149 369 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 1626 297 153 TVCABLE BOGOTA
8151 1441 2759 348 Uninet S.A. de C.V.
28573 1272 998 69 Types of queries are: POCs, o
7303 1056 578 170 Telecom Argentina Stet-France
14420 711 56 87 Types of queries are: POCs, o
6503 603 450 70 AVANTEL, S.A.
22047 578 322 17 Types of queries are: POCs, o
27947 573 56 78 Telconet S.A
10481 548 430 20 Prima S.A.
3816 534 232 97 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 809 147 42 LINKdotNET AS number
8452 626 445 11 TEDATA
15475 512 74 8 Nile Online
36992 302 415 14 Etisalat MISR
3741 266 937 227 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
15706 219 32 6 Sudatel Internet Exchange Aut
33776 199 12 21 Starcomms Nigeria Limited
12258 195 28 62 YEBO-AS
24835 177 70 12 RAYA Telecom - Egypt
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 3578 3817 228 bellsouth.net, inc.
23456 3184 749 1700 >>UNKNOWN<<
17974 1980 516 31 PT TELEKOMUNIKASI INDONESIA
4766 1942 11038 647 Korea Telecom (KIX)
18566 1912 364 240 Covad Communications
1785 1825 681 123 AppliedTheory Corporation
10620 1626 297 153 TVCABLE BOGOTA
7029 1618 1033 208 Windstream Communications Inc
4323 1615 1101 396 Time Warner Telecom
20115 1589 1539 632 Charter Communications
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 1980 1949 PT TELEKOMUNIKASI INDONESIA
1785 1825 1702 AppliedTheory Corporation
18566 1912 1672 Covad Communications
7545 1573 1490 TPG Internet Pty Ltd
23456 3184 1484 >>UNKNOWN<<
10620 1626 1473 TVCABLE BOGOTA
7029 1618 1410 Windstream Communications Inc
4755 1534 1368 Videsh Sanchar Nigam Ltd. Aut
22773 1443 1347 Cox Communications, Inc.
4766 1942 1295 Korea Telecom (KIX)
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<<
46.18.104.0/21 23456 >>UNKNOWN<<
62.61.220.0/24 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 /8:20 /9:12 /10:27 /11:81 /12:233
/13:461 /14:805 /15:1444 /16:12061 /17:6196 /18:10251
/19:20085 /20:27706 /21:27175 /22:36082 /23:34988 /24:193724
/25:78 /26:86 /27:113 /28:286 /29:106 /30:511
/31:71 /32:492
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2210 3578 bellsouth.net, inc.
18566 1868 1912 Covad Communications
23456 1568 3184 >>UNKNOWN<<
10620 1521 1626 TVCABLE BOGOTA
7029 1302 1618 Windstream Communications Inc
11492 1105 1151 Cable One
7011 1057 1182 Citizens Utilities
1785 1053 1825 AppliedTheory Corporation
22773 937 1443 Cox Communications, Inc.
30036 930 958 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:360 2:46 4:19 5:1 6:3 8:345
12:1959 13:1 14:558 15:13 16:3 17:5
20:10 23:31 24:1681 27:911 31:516 32:149
33:4 34:2 36:4 38:737 40:107 41:2469
42:53 44:3 46:1077 47:3 49:222 50:424
52:13 54:2 55:6 56:2 57:45 58:865
59:501 60:376 61:1176 62:1110 63:1962 64:4059
65:2309 66:3973 67:1960 68:1288 69:3235 70:825
71:374 72:1876 73:1 74:2464 75:342 76:346
77:867 78:703 79:484 80:1126 81:833 82:511
83:482 84:699 85:1088 86:519 87:862 88:343
89:1561 90:231 91:4065 92:528 93:1138 94:1350
95:885 96:422 97:269 98:940 99:37 101:88
103:247 106:79 107:38 108:83 109:1025 110:649
111:744 112:315 113:417 114:603 115:691 116:1012
117:666 118:887 119:1214 120:330 121:704 122:1618
123:1025 124:1321 125:1290 128:248 129:181 130:166
131:580 132:118 133:21 134:215 135:50 136:213
137:135 138:293 139:129 140:489 141:286 142:390
143:429 144:486 145:61 146:461 147:247 148:688
149:249 150:155 151:190 152:442 153:179 154:5
155:398 156:201 157:355 158:141 159:458 160:318
161:207 162:334 163:167 164:514 165:396 166:539
167:437 168:748 169:151 170:846 171:84 172:1
173:1659 174:639 175:399 176:156 177:251 178:1013
180:1017 181:26 182:610 183:243 184:347 185:1
186:1398 187:693 188:936 189:880 190:5142 192:5954
193:5006 194:3544 195:3072 196:1243 197:143 198:3600
199:4097 200:5509 201:1523 202:8430 203:8477 204:4248
205:2339 206:2736 207:2846 208:4149 209:3520 210:2707
211:1465 212:2133 213:1775 214:759 215:76 216:4912
217:1618 218:556 219:349 220:1195 221:516 222:352
223:249
End of report
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