Routing Table Report 00:00 GMT Tue 28 Jun, 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: 366780
Prefixes after maximum aggregation: 165499
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 178715
Total ASes present in the Internet Routing Table: 38050
Prefixes per ASN: 9.64
Origin-only ASes present in the Internet Routing Table: 31703
Origin ASes announcing only one prefix: 15182
Transit ASes present in the Internet Routing Table: 5148
Transit-only ASes present in the Internet Routing Table: 134
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 28
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 3740
Unregistered ASNs in the Routing Table: 489
Number of 32-bit ASNs allocated by the RIRs: 1500
Number of 32-bit ASNs visible in the Routing Table: 1199
Prefixes from 32-bit ASNs in the Routing Table: 2772
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 133
Number of addresses announced to Internet: 2494294975
Equivalent to 148 /8s, 171 /16s and 235 /24s
Percentage of available address space announced: 67.3
Percentage of allocated address space announced: 67.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.0
Total number of prefixes smaller than registry allocations: 152518
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 87880
Total APNIC prefixes after maximum aggregation: 29089
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 84729
Unique aggregates announced from the APNIC address blocks: 36216
APNIC Region origin ASes present in the Internet Routing Table: 4477
APNIC Prefixes per ASN: 18.93
APNIC Region origin ASes announcing only one prefix: 1260
APNIC Region transit ASes present in the Internet Routing Table: 705
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 52
Number of APNIC addresses announced to Internet: 622718913
Equivalent to 37 /8s, 29 /16s and 239 /24s
Percentage of available APNIC address space announced: 79.0
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: 144384
Total ARIN prefixes after maximum aggregation: 74450
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 116063
Unique aggregates announced from the ARIN address blocks: 46553
ARIN Region origin ASes present in the Internet Routing Table: 14460
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5515
ARIN Region transit ASes present in the Internet Routing Table: 1493
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 24
Number of ARIN region 32-bit ASNs visible in the Routing Table: 13
Number of ARIN addresses announced to Internet: 819314704
Equivalent to 48 /8s, 213 /16s and 192 /24s
Percentage of available ARIN address space announced: 65.1
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: 89330
Total RIPE prefixes after maximum aggregation: 49306
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 81934
Unique aggregates announced from the RIPE address blocks: 52411
RIPE Region origin ASes present in the Internet Routing Table: 15793
RIPE Prefixes per ASN: 5.19
RIPE Region origin ASes announcing only one prefix: 7823
RIPE Region transit ASes present in the Internet Routing Table: 2501
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 883
Number of RIPE addresses announced to Internet: 479079372
Equivalent to 28 /8s, 142 /16s and 43 /24s
Percentage of available RIPE address space announced: 77.2
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: 33672
Total LACNIC prefixes after maximum aggregation: 7602
LACNIC Deaggregation factor: 4.43
Prefixes being announced from the LACNIC address blocks: 32747
Unique aggregates announced from the LACNIC address blocks: 16937
LACNIC Region origin ASes present in the Internet Routing Table: 1472
LACNIC Prefixes per ASN: 22.25
LACNIC Region origin ASes announcing only one prefix: 441
LACNIC Region transit ASes present in the Internet Routing Table: 265
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: 247
Number of LACNIC addresses announced to Internet: 85660936
Equivalent to 5 /8s, 27 /16s and 21 /24s
Percentage of available LACNIC address space announced: 56.7
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: 8439
Total AfriNIC prefixes after maximum aggregation: 1966
AfriNIC Deaggregation factor: 4.29
Prefixes being announced from the AfriNIC address blocks: 6496
Unique aggregates announced from the AfriNIC address blocks: 1984
AfriNIC Region origin ASes present in the Internet Routing Table: 465
AfriNIC Prefixes per ASN: 13.97
AfriNIC Region origin ASes announcing only one prefix: 143
AfriNIC Region transit ASes present in the Internet Routing Table: 102
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: 24300800
Equivalent to 1 /8s, 114 /16s and 205 /24s
Percentage of available AfriNIC address space announced: 36.2
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 1901 9492 623 Korea Telecom (KIX)
17974 1854 469 43 PT TELEKOMUNIKASI INDONESIA
7545 1541 301 84 TPG Internet Pty Ltd
4755 1488 375 166 Videsh Sanchar Nigam Ltd. Aut
24560 1153 336 187 Bharti Airtel Ltd.
9583 1073 79 505 Sify Limited
9829 1052 888 54 BSNL National Internet Backbo
4808 1032 2087 298 CNCGROUP IP network: China169
17488 973 185 103 Hathway IP Over Cable Interne
18101 931 116 139 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 3626 3819 247 bellsouth.net, inc.
18566 1957 372 223 Covad Communications
1785 1798 681 122 AppliedTheory Corporation
4323 1661 1097 399 Time Warner Telecom
20115 1589 1531 634 Charter Communications
6478 1499 276 522 AT&T Worldnet Services
19262 1452 4806 372 Verizon Global Networks
7029 1386 971 208 Windstream Communications Inc
7018 1379 7086 907 AT&T WorldNet Services
22773 1346 2897 87 Cox Communications, Inc.
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 1040 798 192 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 530 106 185 Tellcom Iletisim Hizmetleri
3292 523 2080 405 TDC Tele Danmark
6830 516 1780 320 UPC Distribution Services
20940 474 138 364 Akamai Technologies European
8866 445 134 26 Bulgarian Telecommunication C
29049 444 33 45 AzerSat LLC.
12479 438 593 7 Uni2 Autonomous System
3320 417 8151 365 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 1532 281 157 TVCABLE BOGOTA
8151 1432 2722 362 Uninet S.A. de C.V.
28573 1266 993 78 Types of queries are: POCs, o
7303 991 506 170 Telecom Argentina Stet-France
6503 751 354 75 AVANTEL, S.A.
14420 684 55 83 Types of queries are: POCs, o
22047 576 322 17 Types of queries are: POCs, o
3816 533 231 93 COLOMBIA TELECOMUNICACIONES S
27947 522 54 52 Telconet S.A
7738 516 986 31 Telecomunicacoes da Bahia 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 797 147 37 LINKdotNET AS number
8452 793 445 11 TEDATA
15475 524 74 8 Nile Online
36992 313 415 14 Etisalat MISR
16637 295 441 87 Johnnic e-Ventures
3741 261 937 223 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 215 12 11 Starcomms Nigeria Limited
24835 211 78 10 RAYA Telecom - Egypt
29571 192 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 3626 3819 247 bellsouth.net, inc.
23456 2772 679 1496 >>UNKNOWN<<
18566 1957 372 223 Covad Communications
4766 1901 9492 623 Korea Telecom (KIX)
17974 1854 469 43 PT TELEKOMUNIKASI INDONESIA
1785 1798 681 122 AppliedTheory Corporation
4323 1661 1097 399 Time Warner Telecom
20115 1589 1531 634 Charter Communications
7545 1541 301 84 TPG Internet Pty Ltd
10620 1532 281 157 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
17974 1854 1811 PT TELEKOMUNIKASI INDONESIA
18566 1957 1734 Covad Communications
1785 1798 1676 AppliedTheory Corporation
7545 1541 1457 TPG Internet Pty Ltd
10620 1532 1375 TVCABLE BOGOTA
4755 1488 1322 Videsh Sanchar Nigam Ltd. Aut
4766 1901 1278 Korea Telecom (KIX)
23456 2772 1276 >>UNKNOWN<<
4323 1661 1262 Time Warner Telecom
22773 1346 1259 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 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
27.0.128.0/17 7514 Media Exchange, Inc.
41.190.32.0/23 31856 CABSAS
41.190.34.0/23 31856 CABSAS
41.190.36.0/23 31856 CABSAS
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 /8:23 /9:12 /10:28 /11:81 /12:231
/13:458 /14:807 /15:1425 /16:12085 /17:6125 /18:10043
/19:19938 /20:26762 /21:26568 /22:34962 /23:34037 /24:190207
/25:390 /26:365 /27:185 /28:355 /29:282 /30:694
/31:67 /32:650
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2230 3626 bellsouth.net, inc.
18566 1907 1957 Covad Communications
6478 1466 1499 AT&T Worldnet Services
10620 1427 1532 TVCABLE BOGOTA
23456 1363 2772 >>UNKNOWN<<
11492 1091 1137 Cable One
7029 1082 1386 Windstream Communications Inc
7011 1056 1157 Citizens Utilities
1785 1051 1798 AppliedTheory Corporation
286 898 1040 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:314 2:71 4:20 5:1 6:3 8:336
12:1982 13:1 14:465 15:15 16:3 17:8
20:10 23:12 24:1672 27:803 31:479 32:128
33:4 34:2 37:1 38:739 39:3 40:103
41:2563 42:5 44:3 46:969 47:3 49:197
50:413 52:13 54:2 55:3 56:2 57:42
58:869 59:468 60:386 61:1182 62:1058 63:1954
64:3973 65:2287 66:3908 67:1936 68:1259 69:3133
70:802 71:392 72:1921 73:2 74:2437 75:333
76:346 77:933 78:711 79:484 80:1105 81:843
82:511 83:468 84:679 85:1080 86:534 87:778
88:341 89:1562 90:209 91:3894 92:539 93:1079
94:1346 95:858 96:447 97:254 98:902 99:36
101:76 103:90 106:9 107:16 108:80 109:1020
110:614 111:708 112:307 113:406 114:548 115:670
116:978 117:670 118:859 119:1139 120:313 121:690
122:1616 123:963 124:1299 125:1243 128:248 129:175
130:168 131:574 132:111 133:21 134:215 135:48
136:215 137:136 138:300 139:125 140:480 141:239
142:406 143:404 144:483 145:54 146:452 147:226
148:661 149:247 150:165 151:190 152:332 153:180
154:4 155:399 156:195 157:352 158:138 159:453
160:314 161:210 162:310 163:165 164:506 165:372
166:534 167:431 168:739 169:159 170:842 171:78
172:1 173:1649 174:611 175:375 176:138 177:156
178:996 180:897 181:18 182:488 183:223 184:388
185:1 186:1264 187:729 188:896 189:930 190:4902
192:5917 193:4993 194:3546 195:3168 196:1230 197:41
198:3601 199:3968 200:5553 201:1507 202:8346 203:8429
204:4211 205:2349 206:2756 207:2816 208:3966 209:3482
210:2686 211:1462 212:2156 213:1780 214:769 215:70
216:4956 217:1648 218:552 219:365 220:1204 221:493
222:361 223:165
End of report
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