Routing Table Report 00:00 GMT Wed 22 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: 366140
Prefixes after maximum aggregation: 164974
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 178577
Total ASes present in the Internet Routing Table: 37969
Prefixes per ASN: 9.64
Origin-only ASes present in the Internet Routing Table: 31683
Origin ASes announcing only one prefix: 15156
Transit ASes present in the Internet Routing Table: 5113
Transit-only ASes present in the Internet Routing Table: 121
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 27
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 3654
Unregistered ASNs in the Routing Table: 466
Number of 32-bit ASNs allocated by the RIRs: 1470
Number of 32-bit ASNs visible in the Routing Table: 1173
Prefixes from 32-bit ASNs in the Routing Table: 2720
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 141
Number of addresses announced to Internet: 2493129159
Equivalent to 148 /8s, 154 /16s and 33 /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: 152274
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 87729
Total APNIC prefixes after maximum aggregation: 29037
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 84403
Unique aggregates announced from the APNIC address blocks: 36177
APNIC Region origin ASes present in the Internet Routing Table: 4478
APNIC Prefixes per ASN: 18.85
APNIC Region origin ASes announcing only one prefix: 1259
APNIC Region transit ASes present in the Internet Routing Table: 694
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 50
Number of APNIC addresses announced to Internet: 622453697
Equivalent to 37 /8s, 25 /16s and 227 /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: 144290
Total ARIN prefixes after maximum aggregation: 74142
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 115885
Unique aggregates announced from the ARIN address blocks: 46496
ARIN Region origin ASes present in the Internet Routing Table: 14455
ARIN Prefixes per ASN: 8.02
ARIN Region origin ASes announcing only one prefix: 5497
ARIN Region transit ASes present in the Internet Routing Table: 1497
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 27
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 819150104
Equivalent to 48 /8s, 211 /16s and 61 /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: 89117
Total RIPE prefixes after maximum aggregation: 49200
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 81799
Unique aggregates announced from the RIPE address blocks: 52433
RIPE Region origin ASes present in the Internet Routing Table: 15759
RIPE Prefixes per ASN: 5.19
RIPE Region origin ASes announcing only one prefix: 7821
RIPE Region transit ASes present in the Internet Routing Table: 2472
Average RIPE Region AS path length visible: 4.0
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: 478796236
Equivalent to 28 /8s, 137 /16s and 217 /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: 33588
Total LACNIC prefixes after maximum aggregation: 7600
LACNIC Deaggregation factor: 4.42
Prefixes being announced from the LACNIC address blocks: 32657
Unique aggregates announced from the LACNIC address blocks: 16926
LACNIC Region origin ASes present in the Internet Routing Table: 1470
LACNIC Prefixes per ASN: 22.22
LACNIC Region origin ASes announcing only one prefix: 437
LACNIC Region transit ASes present in the Internet Routing Table: 269
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 21
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 243
Number of LACNIC addresses announced to Internet: 84954120
Equivalent to 5 /8s, 16 /16s and 76 /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: 8397
Total AfriNIC prefixes after maximum aggregation: 1966
AfriNIC Deaggregation factor: 4.27
Prefixes being announced from the AfriNIC address blocks: 6456
Unique aggregates announced from the AfriNIC address blocks: 1965
AfriNIC Region origin ASes present in the Internet Routing Table: 464
AfriNIC Prefixes per ASN: 13.91
AfriNIC Region origin ASes announcing only one prefix: 142
AfriNIC Region transit ASes present in the Internet Routing Table: 102
Average AfriNIC Region AS path length visible: 4.2
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: 24340480
Equivalent to 1 /8s, 115 /16s and 104 /24s
Percentage of available AfriNIC address space announced: 36.3
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 1849 450 42 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 1070 78 502 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
18101 934 116 140 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 3628 3819 250 bellsouth.net, inc.
18566 1957 372 219 Covad Communications
1785 1800 681 122 AppliedTheory Corporation
4323 1658 1097 397 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 1362 7070 890 AT&T WorldNet Services
7029 1354 815 309 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 1049 798 193 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 525 107 182 Tellcom Iletisim Hizmetleri
3292 523 2080 405 TDC Tele Danmark
6830 517 1780 321 UPC Distribution Services
20940 467 137 358 Akamai Technologies European
29049 447 33 46 AzerSat LLC.
8866 445 133 25 Bulgarian Telecommunication C
12479 436 593 7 Uni2 Autonomous System
35819 426 78 11 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 1428 2712 363 Uninet S.A. de C.V.
28573 1264 993 78 Types of queries are: POCs, o
7303 989 506 169 Telecom Argentina Stet-France
6503 752 354 75 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 514 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 792 445 11 TEDATA
15475 525 74 8 Nile Online
36992 304 415 14 Etisalat MISR
16637 294 441 87 Johnnic e-Ventures
3741 265 937 226 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 250 bellsouth.net, inc.
23456 2720 666 1468 >>UNKNOWN<<
18566 1957 372 219 Covad Communications
4766 1901 9508 623 Korea Telecom (KIX)
17974 1849 450 42 PT TELEKOMUNIKASI INDONESIA
1785 1800 681 122 AppliedTheory Corporation
4323 1658 1097 397 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 1849 1807 PT TELEKOMUNIKASI INDONESIA
18566 1957 1738 Covad Communications
1785 1800 1678 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 1658 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 /14:804 /15:1423 /16:12078 /17:6113 /18:10092
/19:19912 /20:26878 /21:26509 /22:34783 /23:33885 /24:189870
/25:382 /26:355 /27:185 /28:356 /29:281 /30:695
/31:75 /32:627
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2231 3628 bellsouth.net, inc.
18566 1908 1957 Covad Communications
6478 1604 1641 AT&T Worldnet Services
10620 1419 1529 TVCABLE BOGOTA
23456 1341 2720 >>UNKNOWN<<
11492 1090 1136 Cable One
7029 1076 1354 Alltel Information Services,
1785 1050 1800 AppliedTheory Corporation
7011 1024 1123 Citizens Utilities
286 907 1049 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:296 2:71 4:20 5:1 6:3 8:334
12:1979 13:1 14:467 15:15 16:3 17:8
20:10 23:11 24:1671 27:793 31:472 32:128
33:4 34:2 37:1 38:738 40:103 41:2513
42:2 44:3 46:979 47:3 49:192 50:415
52:13 54:2 55:4 56:2 57:42 58:840
59:475 60:386 61:1186 62:1073 63:1954 64:3963
65:2290 66:3890 67:1922 68:1270 69:3161 70:799
71:381 72:1921 73:2 74:2423 75:333 76:347
77:923 78:707 79:480 80:1124 81:838 82:510
83:457 84:689 85:1084 86:572 87:778 88:337
89:1561 90:209 91:3874 92:534 93:1073 94:1323
95:859 96:445 97:250 98:896 99:36 101:75
103:85 106:10 107:14 108:82 109:1015 110:617
111:707 112:306 113:409 114:547 115:664 116:983
117:675 118:848 119:1142 120:310 121:689 122:1630
123:956 124:1269 125:1241 128:248 129:175 130:167
131:578 132:111 133:21 134:215 135:48 136:216
137:137 138:300 139:126 140:482 141:238 142:406
143:423 144:493 145:54 146:451 147:223 148:659
149:247 150:172 151:190 152:332 153:180 154:4
155:398 156:195 157:353 158:138 159:391 160:316
161:208 162:311 163:162 164:504 165:370 166:533
167:432 168:740 169:156 170:841 171:77 172:1
173:1639 174:607 175:372 176:138 177:175 178:1010
180:901 181:19 182:484 183:222 184:383 185:1
186:1246 187:737 188:886 189:903 190:4904 192:5891
193:4979 194:3556 195:3170 196:1235 197:40 198:3611
199:3959 200:5555 201:1500 202:8342 203:8425 204:4200
205:2345 206:2760 207:2819 208:3959 209:3473 210:2709
211:1434 212:2152 213:1778 214:772 215:69 216:4948
217:1656 218:550 219:365 220:1206 221:493 222:360
223:160
End of report
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