Routing Table Report 00:00 GMT Tue 08 Nov, 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: 384295
Prefixes after maximum aggregation: 167894
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 187475
Total ASes present in the Internet Routing Table: 39250
Prefixes per ASN: 9.79
Origin-only ASes present in the Internet Routing Table: 32315
Origin ASes announcing only one prefix: 15486
Transit ASes present in the Internet Routing Table: 5335
Transit-only ASes present in the Internet Routing Table: 138
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 28
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 5338
Unregistered ASNs in the Routing Table: 875
Number of 32-bit ASNs allocated by the RIRs: 1933
Number of 32-bit ASNs visible in the Routing Table: 1600
Prefixes from 32-bit ASNs in the Routing Table: 3689
Special use prefixes present in the Routing Table: 85
Prefixes being announced from unallocated address space: 86
Number of addresses announced to Internet: 2490684194
Equivalent to 148 /8s, 116 /16s and 211 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.6
Total number of prefixes smaller than registry allocations: 160910
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92869
Total APNIC prefixes after maximum aggregation: 29984
APNIC Deaggregation factor: 3.10
Prefixes being announced from the APNIC address blocks: 89364
Unique aggregates announced from the APNIC address blocks: 38270
APNIC Region origin ASes present in the Internet Routing Table: 4585
APNIC Prefixes per ASN: 19.49
APNIC Region origin ASes announcing only one prefix: 1276
APNIC Region transit ASes present in the Internet Routing Table: 720
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 102
Number of APNIC addresses announced to Internet: 629959936
Equivalent to 37 /8s, 140 /16s and 109 /24s
Percentage of available APNIC address space announced: 79.9
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: 148609
Total ARIN prefixes after maximum aggregation: 76588
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 120346
Unique aggregates announced from the ARIN address blocks: 48503
ARIN Region origin ASes present in the Internet Routing Table: 14746
ARIN Prefixes per ASN: 8.16
ARIN Region origin ASes announcing only one prefix: 5636
ARIN Region transit ASes present in the Internet Routing Table: 1556
Average ARIN Region AS path length visible: 3.9
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: 804780040
Equivalent to 47 /8s, 247 /16s and 248 /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: 93761
Total RIPE prefixes after maximum aggregation: 51208
RIPE Deaggregation factor: 1.83
Prefixes being announced from the RIPE address blocks: 85358
Unique aggregates announced from the RIPE address blocks: 54538
RIPE Region origin ASes present in the Internet Routing Table: 16100
RIPE Prefixes per ASN: 5.30
RIPE Region origin ASes announcing only one prefix: 7971
RIPE Region transit ASes present in the Internet Routing Table: 2561
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1112
Number of RIPE addresses announced to Internet: 491993804
Equivalent to 29 /8s, 83 /16s and 58 /24s
Percentage of available RIPE address space announced: 79.3
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: 36559
Total LACNIC prefixes after maximum aggregation: 7994
LACNIC Deaggregation factor: 4.57
Prefixes being announced from the LACNIC address blocks: 35903
Unique aggregates announced from the LACNIC address blocks: 18568
LACNIC Region origin ASes present in the Internet Routing Table: 1542
LACNIC Prefixes per ASN: 23.28
LACNIC Region origin ASes announcing only one prefix: 448
LACNIC Region transit ASes present in the Internet Routing Table: 290
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 370
Number of LACNIC addresses announced to Internet: 92874504
Equivalent to 5 /8s, 137 /16s and 39 /24s
Percentage of available LACNIC address space announced: 61.5
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: 8596
Total AfriNIC prefixes after maximum aggregation: 2044
AfriNIC Deaggregation factor: 4.21
Prefixes being announced from the AfriNIC address blocks: 6657
Unique aggregates announced from the AfriNIC address blocks: 1999
AfriNIC Region origin ASes present in the Internet Routing Table: 495
AfriNIC Prefixes per ASN: 13.45
AfriNIC Region origin ASes announcing only one prefix: 155
AfriNIC Region transit ASes present in the Internet Routing Table: 116
Average AfriNIC Region AS path length visible: 4.4
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: 27602944
Equivalent to 1 /8s, 165 /16s and 48 /24s
Percentage of available AfriNIC address space announced: 41.1
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 1950 11121 665 Korea Telecom (KIX)
17974 1636 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1612 303 86 TPG Internet Pty Ltd
4755 1542 377 172 Videsh Sanchar Nigam Ltd. Aut
7552 1394 1064 7 Vietel Corporation
9829 1161 989 28 BSNL National Internet Backbo
9583 1094 80 502 Sify Limited
4808 1042 2032 290 CNCGROUP IP network: China169
17488 965 187 207 Hathway IP Over Cable Interne
24560 964 343 218 Bharti Airtel Ltd.
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 3547 3815 221 bellsouth.net, inc.
7029 2364 1042 211 Windstream Communications Inc
18566 2094 382 176 Covad Communications
1785 1845 680 123 AppliedTheory Corporation
4323 1622 1077 387 Time Warner Telecom
20115 1595 1547 621 Charter Communications
22773 1489 2909 103 Cox Communications, Inc.
30036 1406 254 669 Mediacom Communications Corp
19262 1396 4728 401 Verizon Global Networks
7018 1316 7030 864 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
8402 1581 416 14 Corbina telecom
286 1084 827 204 KPNQwest Backbone AS
6830 649 1927 412 UPC Distribution Services
34984 596 110 184 Tellcom Iletisim Hizmetleri
20940 566 189 444 Akamai Technologies European
12479 547 628 51 Uni2 Autonomous System
9116 541 326 31 Goldenlines main autonomous s
3292 534 2074 408 TDC Tele Danmark
3320 503 8168 387 Deutsche Telekom AG
8866 462 133 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 1699 314 156 TVCABLE BOGOTA
28573 1475 1043 79 Types of queries are: POCs, o
8151 1461 2916 344 Uninet S.A. de C.V.
7303 1236 751 171 Telecom Argentina Stet-France
27947 602 72 84 Telconet S.A
22047 580 322 17 Types of queries are: POCs, o
6503 576 434 69 AVANTEL, S.A.
7738 551 1050 31 Telecomunicacoes da Bahia S.A
10481 547 429 25 Prima S.A.
3816 541 233 96 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 801 146 36 LINKdotNET AS number
8452 658 446 12 TEDATA
15475 443 74 8 Nile Online
36992 285 415 21 Etisalat MISR
3741 282 939 231 The Internet Solution
15706 240 32 6 Sudatel Internet Exchange Aut
33776 239 13 8 Starcomms Nigeria Limited
6713 235 519 14 Itissalat Al-MAGHRIB
29571 219 18 14 Ci Telecom Autonomous system
12258 197 28 58 YEBO-AS
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 3547 3815 221 bellsouth.net, inc.
7029 2364 1042 211 Windstream Communications Inc
18566 2094 382 176 Covad Communications
4766 1950 11121 665 Korea Telecom (KIX)
1785 1845 680 123 AppliedTheory Corporation
10620 1699 314 156 TVCABLE BOGOTA
17974 1636 511 36 PT TELEKOMUNIKASI INDONESIA
4323 1622 1077 387 Time Warner Telecom
7545 1612 303 86 TPG Internet Pty Ltd
20115 1595 1547 621 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
7029 2364 2153 Windstream Communications Inc
18566 2094 1918 Covad Communications
1785 1845 1722 AppliedTheory Corporation
17974 1636 1600 PT TELEKOMUNIKASI INDONESIA
8402 1581 1567 Corbina telecom
10620 1699 1543 TVCABLE BOGOTA
7545 1612 1526 TPG Internet Pty Ltd
28573 1475 1396 Types of queries are: POCs, o
7552 1394 1387 Vietel Corporation
22773 1489 1386 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
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
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
32873 UNALLOCATED 12.46.100.0/23 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
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 37345 MEDALLION Communications
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 /8:20 /9:12 /10:27 /11:81 /12:236
/13:465 /14:815 /15:1452 /16:12169 /17:6326 /18:10440
/19:20502 /20:28722 /21:28076 /22:37556 /23:35697 /24:199994
/25:67 /26:86 /27:116 /28:287 /29:115 /30:501
/31:53 /32:480
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2187 3547 bellsouth.net, inc.
18566 2044 2094 Covad Communications
7029 2015 2364 Windstream Communications Inc
10620 1594 1699 TVCABLE BOGOTA
8402 1557 1581 Corbina telecom
30036 1366 1406 Mediacom Communications Corp
11492 1117 1154 Cable One
1785 1057 1845 AppliedTheory Corporation
7011 1051 1169 Citizens Utilities
22773 951 1489 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:413 2:490 4:19 5:1 6:3 8:360
12:1958 13:1 14:543 15:11 16:3 17:7
20:9 23:58 24:1686 27:1027 31:672 32:150
33:2 34:2 36:4 38:758 39:1 40:110
41:2721 42:57 44:3 46:1033 47:3 49:298
50:449 52:13 55:6 56:2 57:57 58:917
59:496 60:362 61:1139 62:1094 63:1983 64:4066
65:2302 66:4297 67:2031 68:1345 69:3292 70:930
71:385 72:1834 73:1 74:2658 75:401 76:325
77:881 78:882 79:474 80:1131 81:834 82:532
83:531 84:628 85:1152 86:409 87:932 88:361
89:1611 90:237 91:4264 92:537 93:1554 94:1305
95:1131 96:431 97:286 98:946 99:37 101:227
103:443 106:8 107:85 108:76 109:1177 110:666
111:799 112:359 113:484 114:624 115:716 116:909
117:723 118:894 119:1267 120:345 121:713 122:1579
123:1018 124:1351 125:1356 128:247 129:191 130:165
131:627 132:148 133:21 134:222 135:54 136:212
137:142 138:286 139:133 140:488 141:316 142:389
143:410 144:491 145:64 146:468 147:231 148:690
149:272 150:165 151:194 152:447 153:178 154:7
155:383 156:208 157:362 158:155 159:487 160:331
161:215 162:371 163:174 164:511 165:387 166:540
167:441 168:820 169:146 170:880 171:87 172:4
173:1729 174:684 175:431 176:318 177:372 178:1095
180:1149 181:37 182:657 183:226 184:389 185:1
186:1332 187:773 188:1021 189:1148 190:5183 192:5956
193:5063 194:3577 195:3132 196:1275 197:171 198:3636
199:4218 200:5515 201:1702 202:8551 203:8491 204:4320
205:2380 206:2697 207:2826 208:4043 209:3608 210:2743
211:1467 212:2125 213:1785 214:808 215:94 216:4929
217:1601 218:569 219:343 220:1261 221:517 222:324
223:269
End of report
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