Routing Table Report 00:00 GMT Tue 21 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: 365769
Prefixes after maximum aggregation: 164895
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 178227
Total ASes present in the Internet Routing Table: 37957
Prefixes per ASN: 9.64
Origin-only ASes present in the Internet Routing Table: 31698
Origin ASes announcing only one prefix: 15161
Transit ASes present in the Internet Routing Table: 5088
Transit-only ASes present in the Internet Routing Table: 127
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: 3628
Unregistered ASNs in the Routing Table: 461
Number of 32-bit ASNs allocated by the RIRs: 1469
Number of 32-bit ASNs visible in the Routing Table: 1171
Prefixes from 32-bit ASNs in the Routing Table: 2714
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 139
Number of addresses announced to Internet: 2492619079
Equivalent to 148 /8s, 146 /16s and 89 /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: 152109
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 87659
Total APNIC prefixes after maximum aggregation: 29058
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 84344
Unique aggregates announced from the APNIC address blocks: 36198
APNIC Region origin ASes present in the Internet Routing Table: 4472
APNIC Prefixes per ASN: 18.86
APNIC Region origin ASes announcing only one prefix: 1255
APNIC Region transit ASes present in the Internet Routing Table: 696
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: 49
Number of APNIC addresses announced to Internet: 622471361
Equivalent to 37 /8s, 26 /16s and 40 /24s
Percentage of available APNIC address space announced: 78.9
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: 144196
Total ARIN prefixes after maximum aggregation: 74087
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 115820
Unique aggregates announced from the ARIN address blocks: 46228
ARIN Region origin ASes present in the Internet Routing Table: 14460
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5512
ARIN Region transit ASes present in the Internet Routing Table: 1490
Average ARIN Region AS path length visible: 4.0
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: 819213976
Equivalent to 48 /8s, 212 /16s and 54 /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: 88983
Total RIPE prefixes after maximum aggregation: 49163
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 81622
Unique aggregates announced from the RIPE address blocks: 52337
RIPE Region origin ASes present in the Internet Routing Table: 15747
RIPE Prefixes per ASN: 5.18
RIPE Region origin ASes announcing only one prefix: 7818
RIPE Region transit ASes present in the Internet Routing Table: 2465
Average RIPE Region AS path length visible: 4.4
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 864
Number of RIPE addresses announced to Internet: 478300364
Equivalent to 28 /8s, 130 /16s and 72 /24s
Percentage of available RIPE address space announced: 77.1
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: 33562
Total LACNIC prefixes after maximum aggregation: 7591
LACNIC Deaggregation factor: 4.42
Prefixes being announced from the LACNIC address blocks: 32620
Unique aggregates announced from the LACNIC address blocks: 16913
LACNIC Region origin ASes present in the Internet Routing Table: 1469
LACNIC Prefixes per ASN: 22.21
LACNIC Region origin ASes announcing only one prefix: 435
LACNIC Region transit ASes present in the Internet Routing Table: 261
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 20
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 242
Number of LACNIC addresses announced to Internet: 84945928
Equivalent to 5 /8s, 16 /16s and 44 /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: 8365
Total AfriNIC prefixes after maximum aggregation: 1969
AfriNIC Deaggregation factor: 4.25
Prefixes being announced from the AfriNIC address blocks: 6444
Unique aggregates announced from the AfriNIC address blocks: 1992
AfriNIC Region origin ASes present in the Internet Routing Table: 462
AfriNIC Prefixes per ASN: 13.95
AfriNIC Region origin ASes announcing only one prefix: 141
AfriNIC Region transit ASes present in the Internet Routing Table: 103
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: 24285952
Equivalent to 1 /8s, 114 /16s and 147 /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 9508 623 Korea Telecom (KIX)
17974 1805 459 44 PT TELEKOMUNIKASI INDONESIA
7545 1537 301 86 TPG Internet Pty Ltd
4755 1477 374 166 Videsh Sanchar Nigam Ltd. Aut
24560 1153 336 187 Bharti Airtel Ltd.
9583 1076 79 507 Sify Limited
7552 1054 1064 7 Vietel Corporation
9829 1045 883 59 BSNL National Internet Backbo
17488 964 182 100 Hathway IP Over Cable Interne
4808 961 2020 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 3628 3819 251 bellsouth.net, inc.
18566 1957 372 219 Covad Communications
1785 1799 681 122 AppliedTheory Corporation
4323 1657 1097 396 Time Warner Telecom
6478 1641 298 276 AT&T Worldnet Services
20115 1575 1530 637 Charter Communications
19262 1493 4920 308 Verizon Global Networks
7018 1369 7071 898 AT&T WorldNet Services
7029 1358 815 312 Alltel Information Services,
22773 1341 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 798 193 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 524 107 182 Tellcom Iletisim Hizmetleri
3292 523 2080 405 TDC Tele Danmark
6830 516 1780 322 UPC Distribution Services
20940 467 137 358 Akamai Technologies European
29049 449 33 46 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 436 593 7 Uni2 Autonomous System
35819 425 78 10 Bayanat Al-Oula Autonomous Sy
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 1529 280 157 TVCABLE BOGOTA
8151 1426 2710 362 Uninet S.A. de C.V.
28573 1258 993 78 Types of queries are: POCs, o
7303 988 506 169 Telecom Argentina Stet-France
6503 752 354 74 AVANTEL, S.A.
14420 683 55 82 Types of queries are: POCs, o
22047 572 322 17 Types of queries are: POCs, o
3816 531 229 98 COLOMBIA TELECOMUNICACIONES S
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 513 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 36 LINKdotNET AS number
8452 791 445 11 TEDATA
15475 524 74 8 Nile Online
36992 303 415 15 Etisalat MISR
16637 296 441 87 Johnnic e-Ventures
3741 258 937 223 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 3628 3819 251 bellsouth.net, inc.
23456 2714 667 1467 >>UNKNOWN<<
18566 1957 372 219 Covad Communications
4766 1901 9508 623 Korea Telecom (KIX)
17974 1805 459 44 PT TELEKOMUNIKASI INDONESIA
1785 1799 681 122 AppliedTheory Corporation
4323 1657 1097 396 Time Warner Telecom
6478 1641 298 276 AT&T Worldnet Services
20115 1575 1530 637 Charter Communications
7545 1537 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
17974 1805 1761 PT TELEKOMUNIKASI INDONESIA
18566 1957 1738 Covad Communications
1785 1799 1677 AppliedTheory Corporation
7545 1537 1451 TPG Internet Pty Ltd
10620 1529 1372 TVCABLE BOGOTA
6478 1641 1365 AT&T Worldnet Services
4755 1477 1311 Videsh Sanchar Nigam Ltd. Aut
4766 1901 1278 Korea Telecom (KIX)
4323 1657 1261 Time Warner Telecom
22773 1341 1254 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.
31.132.80.0/20 50704 Benefic Consult SRL
31.132.192.0/21 50704 Benefic Consult SRL
41.190.32.0/23 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 /8:24 /9:12 /10:28 /11:81 /12:231
/13:461 /14:805 /15:1424 /16:12066 /17:6110 /18:10091
/19:19909 /20:26886 /21:26452 /22:34791 /23:33821 /24:189618
/25:385 /26:353 /27:184 /28:356 /29:281 /30:698
/31:75 /32:627
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2230 3628 bellsouth.net, inc.
18566 1908 1957 Covad Communications
6478 1604 1641 AT&T Worldnet Services
10620 1419 1529 TVCABLE BOGOTA
23456 1342 2714 >>UNKNOWN<<
11492 1090 1136 Cable One
7029 1078 1358 Alltel Information Services,
7011 1058 1158 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)
----------------------------------------------
1:288 2:69 4:20 5:1 6:3 8:337
12:1975 13:1 14:464 15:15 16:3 17:8
20:10 23:11 24:1665 27:791 31:451 32:128
33:4 34:2 37:1 38:736 40:103 41:2509
42:2 44:3 46:993 47:3 49:193 50:416
52:13 54:2 55:4 56:2 57:41 58:845
59:475 60:386 61:1184 62:1064 63:1955 64:3967
65:2293 66:3887 67:1919 68:1269 69:3153 70:799
71:381 72:1920 73:2 74:2430 75:333 76:347
77:923 78:702 79:461 80:1119 81:843 82:508
83:467 84:664 85:1083 86:569 87:775 88:339
89:1570 90:208 91:3866 92:526 93:1078 94:1318
95:853 96:448 97:249 98:893 99:36 101:75
103:85 106:10 107:14 108:82 109:1006 110:612
111:708 112:306 113:408 114:547 115:671 116:983
117:675 118:835 119:1154 120:309 121:690 122:1629
123:953 124:1266 125:1232 128:248 129:175 130:165
131:580 132:111 133:21 134:215 135:48 136:216
137:138 138:300 139:126 140:482 141:238 142:406
143:410 144:490 145:54 146:450 147:222 148:661
149:247 150:172 151:190 152:332 153:180 154:4
155:398 156:195 157:353 158:138 159:390 160:316
161:208 162:312 163:154 164:504 165:370 166:533
167:425 168:740 169:157 170:836 171:77 172:1
173:1640 174:605 175:373 176:135 177:166 178:1008
180:894 181:19 182:487 183:223 184:383 185:1
186:1246 187:742 188:885 189:907 190:4892 192:5893
193:4983 194:3553 195:3167 196:1232 197:40 198:3605
199:3952 200:5540 201:1502 202:8344 203:8415 204:4195
205:2343 206:2756 207:2822 208:3951 209:3471 210:2713
211:1434 212:2148 213:1780 214:768 215:69 216:4944
217:1648 218:550 219:363 220:1206 221:493 222:360
223:160
End of report
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