Routing Table Report 00:00 GMT Mon 09 May, 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: 361277
Prefixes after maximum aggregation: 162555
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 175996
Total ASes present in the Internet Routing Table: 37500
Prefixes per ASN: 9.63
Origin-only ASes present in the Internet Routing Table: 31392
Origin ASes announcing only one prefix: 15040
Transit ASes present in the Internet Routing Table: 5048
Transit-only ASes present in the Internet Routing Table: 125
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 26
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 3138
Unregistered ASNs in the Routing Table: 326
Number of 32-bit ASNs allocated by the RIRs: 1337
Number of 32-bit ASNs visible in the Routing Table: 1060
Prefixes from 32-bit ASNs in the Routing Table: 2410
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 152
Number of addresses announced to Internet: 2423985107
Equivalent to 144 /8s, 123 /16s and 19 /24s
Percentage of available address space announced: 65.4
Percentage of allocated address space announced: 65.4
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 90.7
Total number of prefixes smaller than registry allocations: 149853
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 87208
Total APNIC prefixes after maximum aggregation: 28809
APNIC Deaggregation factor: 3.03
Prefixes being announced from the APNIC address blocks: 83697
Unique aggregates announced from the APNIC address blocks: 36855
APNIC Region origin ASes present in the Internet Routing Table: 4416
APNIC Prefixes per ASN: 18.95
APNIC Region origin ASes announcing only one prefix: 1239
APNIC Region transit ASes present in the Internet Routing Table: 690
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 48
Number of APNIC addresses announced to Internet: 612970689
Equivalent to 36 /8s, 137 /16s and 48 /24s
Percentage of available APNIC address space announced: 77.7
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: 143391
Total ARIN prefixes after maximum aggregation: 73329
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 115392
Unique aggregates announced from the ARIN address blocks: 45284
ARIN Region origin ASes present in the Internet Routing Table: 14375
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5488
ARIN Region transit ASes present in the Internet Routing Table: 1460
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 800103192
Equivalent to 47 /8s, 176 /16s and 155 /24s
Percentage of available ARIN address space announced: 63.6
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: 87328
Total RIPE prefixes after maximum aggregation: 48337
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 80011
Unique aggregates announced from the RIPE address blocks: 51068
RIPE Region origin ASes present in the Internet Routing Table: 15580
RIPE Prefixes per ASN: 5.14
RIPE Region origin ASes announcing only one prefix: 7746
RIPE Region transit ASes present in the Internet Routing Table: 2469
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 23
Number of RIPE region 32-bit ASNs visible in the Routing Table: 786
Number of RIPE addresses announced to Internet: 468537428
Equivalent to 27 /8s, 237 /16s and 80 /24s
Percentage of available RIPE address space announced: 75.5
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: 32834
Total LACNIC prefixes after maximum aggregation: 7518
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 31878
Unique aggregates announced from the LACNIC address blocks: 16624
LACNIC Region origin ASes present in the Internet Routing Table: 1445
LACNIC Prefixes per ASN: 22.06
LACNIC Region origin ASes announcing only one prefix: 431
LACNIC Region transit ASes present in the Internet Routing Table: 263
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 209
Number of LACNIC addresses announced to Internet: 83162636
Equivalent to 4 /8s, 244 /16s and 246 /24s
Percentage of available LACNIC address space announced: 55.1
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: 7793
Total AfriNIC prefixes after maximum aggregation: 1870
AfriNIC Deaggregation factor: 4.17
Prefixes being announced from the AfriNIC address blocks: 6149
Unique aggregates announced from the AfriNIC address blocks: 1913
AfriNIC Region origin ASes present in the Internet Routing Table: 448
AfriNIC Prefixes per ASN: 13.73
AfriNIC Region origin ASes announcing only one prefix: 136
AfriNIC Region transit ASes present in the Internet Routing Table: 99
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 26
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 23045632
Equivalent to 1 /8s, 95 /16s and 166 /24s
Percentage of available AfriNIC address space announced: 34.3
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 1890 9485 612 Korea Telecom (KIX)
17974 1802 507 30 PT TELEKOMUNIKASI INDONESIA
7545 1566 301 86 TPG Internet Pty Ltd
4755 1458 374 164 Videsh Sanchar Nigam Ltd. Aut
24560 1151 336 184 Bharti Airtel Ltd.
7552 1108 1064 7 Vietel Corporation
9583 1057 77 492 Sify Limited
9829 1039 874 51 BSNL National Internet Backbo
4808 957 2023 277 CNCGROUP IP network: China169
17488 953 164 100 Hathway IP Over Cable Interne
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 3646 3822 256 bellsouth.net, inc.
4323 2558 1104 399 Time Warner Telecom
1785 1788 681 127 AppliedTheory Corporation
18566 1782 354 219 Covad Communications
6478 1668 313 51 AT&T Worldnet Services
20115 1581 1539 636 Charter Communications
19262 1497 4949 299 Verizon Global Networks
7018 1361 6943 889 AT&T WorldNet Services
22773 1329 2897 87 Cox Communications, Inc.
2386 1265 535 908 AT&T Data Communications Serv
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 1029 798 176 KPNQwest Backbone AS
9116 540 326 30 Goldenlines main autonomous s
6830 519 1780 320 UPC Distribution Services
3292 514 1993 389 TDC Tele Danmark
34984 508 106 184 Tellcom Iletisim Hizmetleri
20940 451 132 345 Akamai Technologies European
8866 445 134 26 Bulgarian Telecommunication C
29049 443 33 43 AzerSat LLC.
3320 422 7609 367 Deutsche Telekom AG
8402 417 320 32 Corbina telecom
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 1458 270 155 TVCABLE BOGOTA
8151 1370 2681 362 Uninet S.A. de C.V.
28573 1298 990 89 Types of queries are: POCs, o
7303 929 470 150 Telecom Argentina Stet-France
6503 803 354 74 AVANTEL, S.A.
14420 665 53 91 Types of queries are: POCs, o
22047 557 310 15 Types of queries are: POCs, o
3816 519 226 98 COLOMBIA TELECOMUNICACIONES S
11172 497 100 85 Alestra
14117 492 47 44 Telefonica del Sur 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
8452 879 445 11 TEDATA
24863 783 147 38 LINKdotNET AS number
15475 430 90 8 Nile Online
36992 288 331 17 Etisalat MISR
3741 268 985 228 The Internet Solution
6713 240 215 13 Itissalat Al-MAGHRIB
33776 213 12 11 Starcomms Nigeria Limited
24835 207 78 10 RAYA Telecom - Egypt
29571 161 17 11 Ci Telecom Autonomous system
16637 151 441 86 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 3646 3822 256 bellsouth.net, inc.
4323 2558 1104 399 Time Warner Telecom
23456 2410 675 1299 >>UNKNOWN<<
4766 1890 9485 612 Korea Telecom (KIX)
17974 1802 507 30 PT TELEKOMUNIKASI INDONESIA
1785 1788 681 127 AppliedTheory Corporation
18566 1782 354 219 Covad Communications
6478 1668 313 51 AT&T Worldnet Services
20115 1581 1539 636 Charter Communications
7545 1566 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
4323 2558 2159 Time Warner Telecom
17974 1802 1772 PT TELEKOMUNIKASI INDONESIA
1785 1788 1661 AppliedTheory Corporation
6478 1668 1617 AT&T Worldnet Services
18566 1782 1563 Covad Communications
7545 1566 1480 TPG Internet Pty Ltd
10620 1458 1303 TVCABLE BOGOTA
4755 1458 1294 Videsh Sanchar Nigam Ltd. Aut
4766 1890 1278 Korea Telecom (KIX)
11492 1264 1249 Cable One
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 1239 Sprint
26973 UNALLOCATED 12.39.154.0/23 1239 Sprint
26973 UNALLOCATED 12.39.155.0/24 1239 Sprint
26973 UNALLOCATED 12.39.159.0/24 1239 Sprint
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
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
45.127.0.0/16 13767 NetworkTwo Communications Gro
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
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 /8:20 /9:12 /10:28 /11:79 /12:223
/13:458 /14:797 /15:1424 /16:11844 /17:6015 /18:9999
/19:19791 /20:26218 /21:26185 /22:34412 /23:33314 /24:187703
/25:377 /26:347 /27:167 /28:282 /29:183 /30:718
/31:65 /32:616
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2246 3646 bellsouth.net, inc.
18566 1744 1782 Covad Communications
6478 1622 1668 AT&T Worldnet Services
10620 1348 1458 TVCABLE BOGOTA
4323 1268 2558 Time Warner Telecom
11492 1213 1264 Cable One
23456 1195 2410 >>UNKNOWN<<
7011 1062 1162 Citizens Utilities
1785 1054 1788 AppliedTheory Corporation
286 889 1029 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:265 2:70 4:18 5:1 6:3 8:355
12:1994 13:1 14:451 15:15 16:3 17:8
20:10 23:6 24:1641 27:740 31:305 32:126
33:3 34:2 37:1 38:766 40:101 41:2485
42:4 44:3 46:912 47:4 49:172 50:388
52:13 55:3 56:2 57:39 58:846 59:484
60:387 61:1256 62:1016 63:1936 64:3948 65:2309
66:4330 67:1897 68:1256 69:3074 70:744 71:352
72:1917 73:3 74:2398 75:316 76:346 77:891
78:696 79:472 80:1090 81:820 82:506 83:459
84:651 85:1086 86:611 87:774 88:332 89:1631
90:192 91:3715 92:511 93:1075 94:1298 95:816
96:483 97:255 98:844 99:35 101:68 103:9
107:6 108:85 109:954 110:585 111:707 112:318
113:400 114:536 115:660 116:965 117:678 118:817
119:1134 120:305 121:675 122:1621 123:1081 124:1255
125:1221 128:260 129:166 130:165 131:568 132:110
133:19 134:219 135:49 136:214 137:143 138:303
139:125 140:480 141:239 142:404 143:401 144:483
145:50 146:441 147:217 148:594 149:243 150:171
151:187 152:312 153:179 154:3 155:396 156:189
157:353 158:131 159:384 160:316 161:205 162:279
163:164 164:496 165:369 166:513 167:426 168:718
169:154 170:789 171:76 172:1 173:1560 174:553
175:371 177:119 178:847 180:818 181:19 182:440
183:208 184:341 185:1 186:1146 187:784 188:852
189:942 190:4859 192:5824 193:4864 194:3523 195:3102
196:1201 197:16 198:3597 199:3933 200:5529 201:1519
202:8340 203:8456 204:4147 205:2331 206:2773 207:3039
208:3978 209:3493 210:2730 211:1409 212:2026 213:1774
214:730 215:68 216:4902 217:1669 218:570 219:372
220:1206 221:482 222:342 223:146
End of report
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