Routing Table Report 00:00 GMT Thu 22 Dec, 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: 391158
Prefixes after maximum aggregation: 169493
Deaggregation factor: 2.31
Unique aggregates announced to Internet: 189542
Total ASes present in the Internet Routing Table: 39664
Prefixes per ASN: 9.86
Origin-only ASes present in the Internet Routing Table: 32580
Origin ASes announcing only one prefix: 15545
Transit ASes present in the Internet Routing Table: 5312
Transit-only ASes present in the Internet Routing Table: 139
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 30
Max AS path prepend of ASN (56677) 25
Prefixes from unregistered ASNs in the Routing Table: 6224
Unregistered ASNs in the Routing Table: 1030
Number of 32-bit ASNs allocated by the RIRs: 2110
Number of 32-bit ASNs visible in the Routing Table: 1772
Prefixes from 32-bit ASNs in the Routing Table: 4206
Special use prefixes present in the Routing Table: 88
Prefixes being announced from unallocated address space: 99
Number of addresses announced to Internet: 2514727142
Equivalent to 149 /8s, 227 /16s and 176 /24s
Percentage of available address space announced: 67.8
Percentage of allocated address space announced: 67.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.8
Total number of prefixes smaller than registry allocations: 163840
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93983
Total APNIC prefixes after maximum aggregation: 30264
APNIC Deaggregation factor: 3.11
Prefixes being announced from the APNIC address blocks: 90403
Unique aggregates announced from the APNIC address blocks: 38684
APNIC Region origin ASes present in the Internet Routing Table: 4602
APNIC Prefixes per ASN: 19.64
APNIC Region origin ASes announcing only one prefix: 1267
APNIC Region transit ASes present in the Internet Routing Table: 745
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 123
Number of APNIC addresses announced to Internet: 632088576
Equivalent to 37 /8s, 172 /16s and 232 /24s
Percentage of available APNIC address space announced: 80.2
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: 149369
Total ARIN prefixes after maximum aggregation: 77158
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 121268
Unique aggregates announced from the ARIN address blocks: 48789
ARIN Region origin ASes present in the Internet Routing Table: 14823
ARIN Prefixes per ASN: 8.18
ARIN Region origin ASes announcing only one prefix: 5660
ARIN Region transit ASes present in the Internet Routing Table: 1521
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 13
Number of ARIN addresses announced to Internet: 804598024
Equivalent to 47 /8s, 245 /16s and 49 /24s
Percentage of available ARIN address space announced: 63.9
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: 97439
Total RIPE prefixes after maximum aggregation: 51880
RIPE Deaggregation factor: 1.88
Prefixes being announced from the RIPE address blocks: 88728
Unique aggregates announced from the RIPE address blocks: 55206
RIPE Region origin ASes present in the Internet Routing Table: 16226
RIPE Prefixes per ASN: 5.47
RIPE Region origin ASes announcing only one prefix: 8007
RIPE Region transit ASes present in the Internet Routing Table: 2579
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1235
Number of RIPE addresses announced to Internet: 494894732
Equivalent to 29 /8s, 127 /16s and 126 /24s
Percentage of available RIPE address space announced: 79.7
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: 37365
Total LACNIC prefixes after maximum aggregation: 8037
LACNIC Deaggregation factor: 4.65
Prefixes being announced from the LACNIC address blocks: 36772
Unique aggregates announced from the LACNIC address blocks: 18897
LACNIC Region origin ASes present in the Internet Routing Table: 1557
LACNIC Prefixes per ASN: 23.62
LACNIC Region origin ASes announcing only one prefix: 450
LACNIC Region transit ASes present in the Internet Routing Table: 287
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 24
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 397
Number of LACNIC addresses announced to Internet: 94991112
Equivalent to 5 /8s, 169 /16s and 115 /24s
Percentage of available LACNIC address space announced: 62.9
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: 8569
Total AfriNIC prefixes after maximum aggregation: 2083
AfriNIC Deaggregation factor: 4.11
Prefixes being announced from the AfriNIC address blocks: 6609
Unique aggregates announced from the AfriNIC address blocks: 2084
AfriNIC Region origin ASes present in the Internet Routing Table: 503
AfriNIC Prefixes per ASN: 13.14
AfriNIC Region origin ASes announcing only one prefix: 161
AfriNIC Region transit ASes present in the Internet Routing Table: 114
Average AfriNIC Region AS path length visible: 4.2
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: 30864640
Equivalent to 1 /8s, 214 /16s and 245 /24s
Percentage of available AfriNIC address space announced: 46.0
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 1924 11097 660 Korea Telecom (KIX)
17974 1716 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1626 303 86 TPG Internet Pty Ltd
4755 1514 385 155 Videsh Sanchar Nigam Ltd. Aut
7552 1420 1064 7 Vietel Corporation
9829 1168 989 28 BSNL National Internet Backbo
9583 1100 81 496 Sify Limited
24560 1009 385 167 Bharti Airtel Ltd.
4808 984 1945 277 CNCGROUP IP network: China169
18101 970 130 157 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 3473 3814 220 bellsouth.net, inc.
7029 2752 1046 213 Windstream Communications Inc
18566 2094 383 177 Covad Communications
1785 1859 680 123 AppliedTheory Corporation
4323 1615 1081 385 Time Warner Telecom
20115 1607 1550 621 Charter Communications
22773 1515 2909 107 Cox Communications, Inc.
30036 1466 260 684 Mediacom Communications Corp
19262 1388 4683 401 Verizon Global Networks
7018 1308 7029 862 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 1573 480 15 Corbina telecom
2118 1319 99 14 EUnet/RELCOM Autonomous Syste
286 1096 806 197 KPNQwest Backbone AS
15557 1092 2161 64 LDCOM NETWORKS
6830 650 1928 414 UPC Distribution Services
34984 627 132 198 Tellcom Iletisim Hizmetleri
20940 555 178 445 Akamai Technologies European
12479 549 636 53 Uni2 Autonomous System
9116 541 326 32 Goldenlines main autonomous s
3292 531 2106 407 TDC Tele Danmark
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 1717 318 160 TVCABLE BOGOTA
28573 1566 1064 75 Types of queries are: POCs, o
8151 1496 2962 349 Uninet S.A. de C.V.
7303 1248 752 176 Telecom Argentina Stet-France
27947 632 73 94 Telconet S.A
22047 582 322 17 Types of queries are: POCs, o
7738 551 1050 31 Telecomunicacoes da Bahia S.A
3816 550 237 89 COLOMBIA TELECOMUNICACIONES S
10481 547 429 25 Prima S.A.
11172 529 102 97 Alestra
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
8452 1036 958 13 TEDATA
24863 784 146 34 LINKdotNET AS number
3741 280 939 229 The Internet Solution
6713 243 647 17 Itissalat Al-MAGHRIB
15706 242 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
29571 217 17 13 Ci Telecom Autonomous system
12258 196 28 61 YEBO-AS
24835 188 80 8 RAYA Telecom - Egypt
16637 157 664 85 Johnnic e-Ventures
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 3473 3814 220 bellsouth.net, inc.
7029 2752 1046 213 Windstream Communications Inc
18566 2094 383 177 Covad Communications
4766 1924 11097 660 Korea Telecom (KIX)
1785 1859 680 123 AppliedTheory Corporation
10620 1717 318 160 TVCABLE BOGOTA
17974 1716 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1626 303 86 TPG Internet Pty Ltd
4323 1615 1081 385 Time Warner Telecom
20115 1607 1550 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 2752 2539 Windstream Communications Inc
18566 2094 1917 Covad Communications
1785 1859 1736 AppliedTheory Corporation
17974 1716 1678 PT TELEKOMUNIKASI INDONESIA
8402 1573 1558 Corbina telecom
10620 1717 1557 TVCABLE BOGOTA
7545 1626 1540 TPG Internet Pty Ltd
28573 1566 1491 Types of queries are: POCs, o
7552 1420 1413 Vietel Corporation
22773 1515 1408 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
37.17.240.0/21 35362 Best ISP
37.17.248.0/21 8473 Bahnhof AB
37.18.128.0/21 57477 >>UNKNOWN<<
37.18.160.0/20 16347 FITECH-NANCY
37.19.8.0/21 49964 VERIXI
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
64.21.192.0/20 11610 Internet Nebraska
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 /10:27 /11:81 /12:237
/13:465 /14:819 /15:1476 /16:12208 /17:6379 /18:10480
/19:20662 /20:29140 /21:28577 /22:38597 /23:36369 /24:203853
/25:69 /26:84 /27:111 /28:292 /29:112 /30:548
/31:52 /32:487
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2361 2752 Windstream Communications Inc
6389 2117 3473 bellsouth.net, inc.
18566 2043 2094 Covad Communications
10620 1612 1717 TVCABLE BOGOTA
8402 1552 1573 Corbina telecom
30036 1426 1466 Mediacom Communications Corp
11492 1115 1152 Cable One
1785 1061 1859 AppliedTheory Corporation
7011 1051 1168 Citizens Utilities
15557 1042 1092 LDCOM NETWORKS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:467 2:437 4:19 5:1 6:3 8:362
12:1943 13:1 14:572 15:11 16:3 17:7
20:9 23:76 24:1718 27:1129 31:735 32:122
33:2 34:2 36:4 37:6 38:777 39:1
40:114 41:3024 42:78 43:1 44:3 46:1144
47:3 49:283 50:473 52:13 55:5 56:2
57:54 58:928 59:485 60:323 61:1169 62:935
63:1981 64:4144 65:2305 66:4389 67:2037 68:1355
69:3237 70:954 71:409 72:1813 73:1 74:2697
75:442 76:332 77:944 78:869 79:454 80:1185
81:851 82:543 83:535 84:582 85:1168 86:749
87:907 88:355 89:1605 90:249 91:4380 92:541
93:1526 94:1348 95:1038 96:401 97:287 98:789
99:38 100:2 101:253 103:587 106:11 107:115
108:103 109:1430 110:700 111:829 112:424 113:515
114:604 115:715 116:912 117:732 118:898 119:1265
120:355 121:696 122:1572 123:1028 124:1359 125:1344
128:524 129:192 130:187 131:584 132:161 133:21
134:226 135:54 136:213 137:151 138:286 139:137
140:489 141:256 142:382 143:388 144:500 145:67
146:477 147:233 148:676 149:268 150:164 151:192
152:446 153:170 154:7 155:400 156:210 157:366
158:154 159:503 160:348 161:221 162:363 163:186
164:522 165:413 166:543 167:455 168:809 169:147
170:829 171:95 172:4 173:1808 174:601 175:441
176:319 177:401 178:1136 180:1232 181:39 182:677
183:261 184:408 185:1 186:1413 187:783 188:963
189:1143 190:5311 192:6007 193:5435 194:4314 195:3428
196:1297 197:175 198:3627 199:4245 200:5514 201:1720
202:8603 203:8559 204:4351 205:2424 206:2693 207:2846
208:4020 209:3597 210:2769 211:1482 212:1997 213:1807
214:803 215:93 216:4954 217:1514 218:572 219:337
220:1262 221:527 222:325 223:267
End of report
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