Routing Table Report 00:00 GMT Thu 16 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: 384798
Prefixes after maximum aggregation: 165051
Deaggregation factor: 2.33
Unique aggregates announced to Internet: 178574
Total ASes present in the Internet Routing Table: 37876
Prefixes per ASN: 10.16
Origin-only ASes present in the Internet Routing Table: 31649
Origin ASes announcing only one prefix: 15128
Transit ASes present in the Internet Routing Table: 5075
Transit-only ASes present in the Internet Routing Table: 119
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 26
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 3587
Unregistered ASNs in the Routing Table: 445
Number of 32-bit ASNs allocated by the RIRs: 1454
Number of 32-bit ASNs visible in the Routing Table: 1152
Prefixes from 32-bit ASNs in the Routing Table: 2688
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 145
Number of addresses announced to Internet: 2489201616
Equivalent to 148 /8s, 94 /16s and 51 /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: 90.9
Total number of prefixes smaller than registry allocations: 171470
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 87617
Total APNIC prefixes after maximum aggregation: 28982
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 84208
Unique aggregates announced from the APNIC address blocks: 36796
APNIC Region origin ASes present in the Internet Routing Table: 4465
APNIC Prefixes per ASN: 18.86
APNIC Region origin ASes announcing only one prefix: 1259
APNIC Region transit ASes present in the Internet Routing Table: 681
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: 46
Number of APNIC addresses announced to Internet: 619988418
Equivalent to 36 /8s, 244 /16s and 69 /24s
Percentage of available APNIC address space announced: 78.6
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: 144176
Total ARIN prefixes after maximum aggregation: 73714
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 115820
Unique aggregates announced from the ARIN address blocks: 46118
ARIN Region origin ASes present in the Internet Routing Table: 14439
ARIN Prefixes per ASN: 8.02
ARIN Region origin ASes announcing only one prefix: 5490
ARIN Region transit ASes present in the Internet Routing Table: 1485
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 818730264
Equivalent to 48 /8s, 204 /16s and 213 /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: 108343
Total RIPE prefixes after maximum aggregation: 49865
RIPE Deaggregation factor: 2.17
Prefixes being announced from the RIPE address blocks: 101000
Unique aggregates announced from the RIPE address blocks: 52221
RIPE Region origin ASes present in the Internet Routing Table: 15723
RIPE Prefixes per ASN: 6.42
RIPE Region origin ASes announcing only one prefix: 7799
RIPE Region transit ASes present in the Internet Routing Table: 2468
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 852
Number of RIPE addresses announced to Internet: 477851348
Equivalent to 28 /8s, 123 /16s and 110 /24s
Percentage of available RIPE address space announced: 77.0
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: 33465
Total LACNIC prefixes after maximum aggregation: 7566
LACNIC Deaggregation factor: 4.42
Prefixes being announced from the LACNIC address blocks: 32533
Unique aggregates announced from the LACNIC address blocks: 17005
LACNIC Region origin ASes present in the Internet Routing Table: 1468
LACNIC Prefixes per ASN: 22.16
LACNIC Region origin ASes announcing only one prefix: 436
LACNIC Region transit ASes present in the Internet Routing Table: 260
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 238
Number of LACNIC addresses announced to Internet: 84998408
Equivalent to 5 /8s, 16 /16s and 249 /24s
Percentage of available LACNIC address space announced: 56.3
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: 8218
Total AfriNIC prefixes after maximum aggregation: 1935
AfriNIC Deaggregation factor: 4.25
Prefixes being announced from the AfriNIC address blocks: 6291
Unique aggregates announced from the AfriNIC address blocks: 1862
AfriNIC Region origin ASes present in the Internet Routing Table: 461
AfriNIC Prefixes per ASN: 13.65
AfriNIC Region origin ASes announcing only one prefix: 144
AfriNIC Region transit ASes present in the Internet Routing Table: 104
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 24243968
Equivalent to 1 /8s, 113 /16s and 239 /24s
Percentage of available AfriNIC address space announced: 36.1
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 1899 9492 620 Korea Telecom (KIX)
17974 1864 440 38 PT TELEKOMUNIKASI INDONESIA
7545 1537 301 86 TPG Internet Pty Ltd
4755 1473 374 166 Videsh Sanchar Nigam Ltd. Aut
24560 1153 336 187 Bharti Airtel Ltd.
7552 1143 1064 7 Vietel Corporation
9583 1076 79 507 Sify Limited
9829 1042 879 56 BSNL National Internet Backbo
17488 964 190 100 Hathway IP Over Cable Interne
4808 961 2022 279 CNCGROUP IP network: China169
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 3632 3819 251 bellsouth.net, inc.
4323 1959 1097 397 Time Warner Telecom
18566 1957 372 219 Covad Communications
1785 1799 681 122 AppliedTheory Corporation
6478 1728 319 50 AT&T Worldnet Services
20115 1576 1530 638 Charter Communications
19262 1493 4920 308 Verizon Global Networks
7018 1372 7071 897 AT&T WorldNet Services
7029 1362 815 312 Alltel Information Services,
22773 1342 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
15557 19223 2367 772 LDCOM NETWORKS
286 1049 798 192 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 524 107 182 Tellcom Iletisim Hizmetleri
3292 517 2078 399 TDC Tele Danmark
6830 516 1780 321 UPC Distribution Services
20940 464 135 355 Akamai Technologies European
29049 449 33 46 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 435 593 7 Uni2 Autonomous System
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 1517 278 155 TVCABLE BOGOTA
28573 1320 992 79 Types of queries are: POCs, o
8151 1273 2710 363 Uninet S.A. de C.V.
7303 989 506 169 Telecom Argentina Stet-France
6503 740 354 73 AVANTEL, S.A.
14420 679 54 81 Types of queries are: POCs, o
22047 572 322 17 Types of queries are: POCs, o
3816 534 231 93 COLOMBIA TELECOMUNICACIONES S
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 512 53 47 Telconet 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 796 147 38 LINKdotNET AS number
8452 756 445 11 TEDATA
15475 529 74 8 Nile Online
36992 306 415 16 Etisalat MISR
16637 301 441 87 Johnnic e-Ventures
3741 265 937 226 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
24835 211 78 10 RAYA Telecom - Egypt
29571 192 17 11 Ci Telecom Autonomous system
33776 192 12 18 Starcomms Nigeria Limited
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
15557 19223 2367 772 LDCOM NETWORKS
6389 3632 3819 251 bellsouth.net, inc.
23456 2688 651 1448 >>UNKNOWN<<
4323 1959 1097 397 Time Warner Telecom
18566 1957 372 219 Covad Communications
4766 1899 9492 620 Korea Telecom (KIX)
17974 1864 440 38 PT TELEKOMUNIKASI INDONESIA
1785 1799 681 122 AppliedTheory Corporation
6478 1728 319 50 AT&T Worldnet Services
20115 1576 1530 638 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
6389 3632 3381 bellsouth.net, inc.
17974 1864 1826 PT TELEKOMUNIKASI INDONESIA
18566 1957 1738 Covad Communications
6478 1728 1678 AT&T Worldnet Services
1785 1799 1677 AppliedTheory Corporation
4323 1959 1562 Time Warner Telecom
7545 1537 1451 TPG Internet Pty Ltd
10620 1517 1362 TVCABLE BOGOTA
4755 1473 1307 Videsh Sanchar Nigam Ltd. Aut
4766 1899 1279 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
27.0.128.0/17 7514 Media Exchange, Inc.
31.132.0.0/21 9153 VAS-NET-US Autonomous System
41.190.32.0/23 31856 CABSAS
41.190.34.0/23 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 /8:22 /9:12 /10:28 /11:81 /12:230
/13:462 /14:807 /15:1421 /16:12061 /17:6109 /18:10113
/19:19910 /20:26917 /21:26489 /22:34745 /23:33819 /24:208804
/25:379 /26:354 /27:185 /28:182 /29:277 /30:683
/31:76 /32:632
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
15557 19181 19223 LDCOM NETWORKS
6389 2234 3632 bellsouth.net, inc.
18566 1908 1957 Covad Communications
6478 1682 1728 AT&T Worldnet Services
10620 1407 1517 TVCABLE BOGOTA
23456 1335 2688 >>UNKNOWN<<
11492 1090 1136 Cable One
7029 1084 1362 Alltel Information Services,
7011 1060 1160 Citizens Utilities
1785 1050 1799 AppliedTheory Corporation
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:279 2:66 4:20 5:1 6:3 8:338
12:1978 13:1 14:462 15:15 16:3 17:8
20:10 23:11 24:1657 27:788 31:445 32:124
33:4 34:2 37:1 38:736 40:103 41:2457
42:2 44:3 46:972 47:3 49:187 50:409
52:13 54:2 55:4 56:2 57:41 58:852
59:477 60:387 61:1187 62:1112 63:1951 64:3972
65:2253 66:4153 67:1916 68:1270 69:3123 70:768
71:382 72:1877 73:2 74:2423 75:333 76:349
77:3904 78:3624 79:3803 80:1355 81:930 82:508
83:472 84:2352 85:1142 86:3036 87:775 88:594
89:1643 90:204 91:3945 92:512 93:6329 94:1343
95:859 96:446 97:250 98:891 99:36 101:70
103:75 106:6 107:11 108:83 109:1009 110:617
111:712 112:303 113:397 114:543 115:668 116:973
117:677 118:830 119:1140 120:309 121:690 122:1626
123:950 124:1266 125:1237 128:248 129:177 130:165
131:578 132:110 133:19 134:212 135:48 136:214
137:135 138:301 139:124 140:475 141:238 142:406
143:413 144:492 145:54 146:446 147:223 148:658
149:247 150:173 151:190 152:332 153:180 154:4
155:399 156:195 157:354 158:137 159:381 160:316
161:209 162:312 163:165 164:499 165:367 166:532
167:422 168:739 169:158 170:838 171:77 172:1
173:1638 174:604 175:372 176:135 177:168 178:1007
180:897 181:19 182:475 183:218 184:384 185:1
186:1223 187:775 188:862 189:922 190:4890 192:5892
193:4927 194:3549 195:3136 196:1244 197:21 198:3604
199:3946 200:5559 201:1489 202:8319 203:8401 204:4190
205:2343 206:2765 207:2816 208:3947 209:3472 210:2716
211:1424 212:2049 213:1775 214:769 215:68 216:4940
217:1668 218:551 219:366 220:1209 221:494 222:361
223:159
End of report
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