Routing Table Report 00:00 GMT Fri 17 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: 365374
Prefixes after maximum aggregation: 164435
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 178671
Total ASes present in the Internet Routing Table: 37937
Prefixes per ASN: 9.63
Origin-only ASes present in the Internet Routing Table: 31688
Origin ASes announcing only one prefix: 15159
Transit ASes present in the Internet Routing Table: 5090
Transit-only ASes present in the Internet Routing Table: 123
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: 3581
Unregistered ASNs in the Routing Table: 449
Number of 32-bit ASNs allocated by the RIRs: 1459
Number of 32-bit ASNs visible in the Routing Table: 1159
Prefixes from 32-bit ASNs in the Routing Table: 2680
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 143
Number of addresses announced to Internet: 2489659856
Equivalent to 148 /8s, 101 /16s and 49 /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: 91.0
Total number of prefixes smaller than registry allocations: 152184
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 87375
Total APNIC prefixes after maximum aggregation: 29010
APNIC Deaggregation factor: 3.01
Prefixes being announced from the APNIC address blocks: 83959
Unique aggregates announced from the APNIC address blocks: 36840
APNIC Region origin ASes present in the Internet Routing Table: 4469
APNIC Prefixes per ASN: 18.79
APNIC Region origin ASes announcing only one prefix: 1259
APNIC Region transit ASes present in the Internet Routing Table: 688
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: 620296386
Equivalent to 36 /8s, 248 /16s and 248 /24s
Percentage of available APNIC address space announced: 78.7
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: 144315
Total ARIN prefixes after maximum aggregation: 73763
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 115930
Unique aggregates announced from the ARIN address blocks: 46147
ARIN Region origin ASes present in the Internet Routing Table: 14457
ARIN Prefixes per ASN: 8.02
ARIN Region origin ASes announcing only one prefix: 5509
ARIN Region transit ASes present in the Internet Routing Table: 1488
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: 818790936
Equivalent to 48 /8s, 205 /16s and 194 /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: 89031
Total RIPE prefixes after maximum aggregation: 49124
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 81696
Unique aggregates announced from the RIPE address blocks: 52248
RIPE Region origin ASes present in the Internet Routing Table: 15749
RIPE Prefixes per ASN: 5.19
RIPE Region origin ASes announcing only one prefix: 7811
RIPE Region transit ASes present in the Internet Routing Table: 2469
Average RIPE Region AS path length visible: 4.5
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 858
Number of RIPE addresses announced to Internet: 477966292
Equivalent to 28 /8s, 125 /16s and 47 /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: 33379
Total LACNIC prefixes after maximum aggregation: 7560
LACNIC Deaggregation factor: 4.42
Prefixes being announced from the LACNIC address blocks: 32446
Unique aggregates announced from the LACNIC address blocks: 16932
LACNIC Region origin ASes present in the Internet Routing Table: 1467
LACNIC Prefixes per ASN: 22.12
LACNIC Region origin ASes announcing only one prefix: 437
LACNIC Region transit ASes present in the Internet Routing Table: 255
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: 239
Number of LACNIC addresses announced to Internet: 84932360
Equivalent to 5 /8s, 15 /16s and 247 /24s
Percentage of available LACNIC address space announced: 56.2
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: 8311
Total AfriNIC prefixes after maximum aggregation: 1973
AfriNIC Deaggregation factor: 4.21
Prefixes being announced from the AfriNIC address blocks: 6381
Unique aggregates announced from the AfriNIC address blocks: 1958
AfriNIC Region origin ASes present in the Internet Routing Table: 464
AfriNIC Prefixes per ASN: 13.75
AfriNIC Region origin ASes announcing only one prefix: 143
AfriNIC Region transit ASes present in the Internet Routing Table: 105
Average AfriNIC Region AS path length visible: 4.5
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: 24236032
Equivalent to 1 /8s, 113 /16s and 208 /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 1562 449 42 PT TELEKOMUNIKASI INDONESIA
7545 1538 301 86 TPG Internet Pty Ltd
4755 1479 374 165 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 965 190 101 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 1370 7071 895 AT&T WorldNet Services
7029 1360 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
286 1051 798 192 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 524 107 182 Tellcom Iletisim Hizmetleri
3292 519 2078 401 TDC Tele Danmark
6830 515 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 437 593 7 Uni2 Autonomous System
3320 420 8151 367 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 1517 278 155 TVCABLE BOGOTA
28573 1285 992 79 Types of queries are: POCs, o
8151 1272 2710 363 Uninet S.A. de C.V.
7303 990 506 169 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 536 231 94 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 794 147 36 LINKdotNET AS number
8452 761 445 11 TEDATA
15475 526 74 8 Nile Online
36992 306 415 16 Etisalat MISR
16637 300 441 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 191 17 11 Ci Telecom Autonomous system
33776 184 11 17 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
6389 3632 3819 251 bellsouth.net, inc.
23456 2680 660 1456 >>UNKNOWN<<
4323 1959 1097 397 Time Warner Telecom
18566 1957 372 219 Covad Communications
4766 1899 9492 620 Korea Telecom (KIX)
1785 1799 681 122 AppliedTheory Corporation
6478 1728 319 50 AT&T Worldnet Services
20115 1576 1530 638 Charter Communications
17974 1562 449 42 PT TELEKOMUNIKASI INDONESIA
7545 1538 301 86 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 1957 1738 Covad Communications
6478 1728 1678 AT&T Worldnet Services
1785 1799 1677 AppliedTheory Corporation
4323 1959 1562 Time Warner Telecom
17974 1562 1520 PT TELEKOMUNIKASI INDONESIA
7545 1538 1452 TPG Internet Pty Ltd
10620 1517 1362 TVCABLE BOGOTA
4755 1479 1314 Videsh Sanchar Nigam Ltd. Aut
4766 1899 1279 Korea Telecom (KIX)
22773 1342 1255 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.
31.131.248.0/22 51247 PermInterSvyaz LTD
31.132.0.0/21 9153 VAS-NET-US Autonomous System
31.132.8.0/21 15478 White Market Media SRL
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 /15:1422 /16:12066 /17:6105 /18:10102
/19:19912 /20:26919 /21:26469 /22:34706 /23:33805 /24:189458
/25:379 /26:354 /27:183 /28:186 /29:279 /30:687
/31:76 /32:624
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2234 3632 bellsouth.net, inc.
18566 1908 1957 Covad Communications
6478 1682 1728 AT&T Worldnet Services
10620 1407 1517 TVCABLE BOGOTA
23456 1320 2680 >>UNKNOWN<<
11492 1090 1136 Cable One
7029 1081 1360 Alltel Information Services,
7011 1060 1160 Citizens Utilities
1785 1050 1799 AppliedTheory Corporation
286 909 1051 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:287 2:67 4:20 5:1 6:3 8:337
12:1979 13:1 14:463 15:15 16:3 17:8
20:10 23:11 24:1666 27:790 31:446 32:128
33:4 34:2 37:1 38:734 40:103 41:2486
42:2 44:3 46:979 47:3 49:187 50:409
52:13 54:2 55:5 56:2 57:41 58:854
59:477 60:387 61:1125 62:1067 63:1950 64:3971
65:2254 66:4167 67:1918 68:1267 69:3129 70:769
71:382 72:1882 73:2 74:2425 75:333 76:348
77:921 78:712 79:481 80:1123 81:855 82:510
83:472 84:679 85:1095 86:600 87:776 88:369
89:1569 90:208 91:3870 92:514 93:1078 94:1348
95:858 96:446 97:250 98:895 99:36 101:70
103:75 106:6 107:13 108:82 109:1013 110:613
111:711 112:301 113:400 114:547 115:665 116:982
117:677 118:797 119:1141 120:309 121:690 122:1627
123:947 124:1266 125:1226 128:230 129:176 130:165
131:581 132:111 133:16 134:215 135:48 136:214
137:138 138:301 139:125 140:479 141:238 142:407
143:417 144:491 145:54 146:444 147:222 148:658
149:247 150:171 151:190 152:332 153:180 154:4
155:398 156:195 157:354 158:137 159:381 160:319
161:208 162:314 163:165 164:499 165:370 166:532
167:423 168:740 169:158 170:839 171:77 172:1
173:1639 174:604 175:373 176:135 177:171 178:1006
180:892 181:19 182:479 183:218 184:384 185:1
186:1234 187:747 188:866 189:907 190:4894 192:5884
193:4975 194:3549 195:3163 196:1239 197:22 198:3611
199:3952 200:5534 201:1486 202:8325 203:8395 204:4195
205:2347 206:2763 207:2820 208:3942 209:3468 210:2709
211:1426 212:2071 213:1756 214:768 215:69 216:4944
217:1659 218:551 219:367 220:1206 221:493 222:335
223:160
End of report
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