Routing Table Report 00:00 GMT Tue 26 Jul, 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: 370562
Prefixes after maximum aggregation: 167027
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 180891
Total ASes present in the Internet Routing Table: 38310
Prefixes per ASN: 9.67
Origin-only ASes present in the Internet Routing Table: 31905
Origin ASes announcing only one prefix: 15262
Transit ASes present in the Internet Routing Table: 5122
Transit-only ASes present in the Internet Routing Table: 137
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 35
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 4060
Unregistered ASNs in the Routing Table: 580
Number of 32-bit ASNs allocated by the RIRs: 1592
Number of 32-bit ASNs visible in the Routing Table: 1283
Prefixes from 32-bit ASNs in the Routing Table: 2971
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 118
Number of addresses announced to Internet: 2487327038
Equivalent to 148 /8s, 65 /16s and 153 /24s
Percentage of available address space announced: 67.1
Percentage of allocated address space announced: 67.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.1
Total number of prefixes smaller than registry allocations: 154138
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89322
Total APNIC prefixes after maximum aggregation: 29254
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 85981
Unique aggregates announced from the APNIC address blocks: 37495
APNIC Region origin ASes present in the Internet Routing Table: 4505
APNIC Prefixes per ASN: 19.09
APNIC Region origin ASes announcing only one prefix: 1264
APNIC Region transit ASes present in the Internet Routing Table: 695
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: 62
Number of APNIC addresses announced to Internet: 622408704
Equivalent to 37 /8s, 25 /16s and 52 /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: 145396
Total ARIN prefixes after maximum aggregation: 75150
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 116883
Unique aggregates announced from the ARIN address blocks: 46666
ARIN Region origin ASes present in the Internet Routing Table: 14520
ARIN Prefixes per ASN: 8.05
ARIN Region origin ASes announcing only one prefix: 5552
ARIN Region transit ASes present in the Internet Routing Table: 1500
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 35
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 803209368
Equivalent to 47 /8s, 224 /16s and 0 /24s
Percentage of available ARIN address space announced: 63.8
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: 90044
Total RIPE prefixes after maximum aggregation: 49749
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 82674
Unique aggregates announced from the RIPE address blocks: 52760
RIPE Region origin ASes present in the Internet Routing Table: 15849
RIPE Prefixes per ASN: 5.22
RIPE Region origin ASes announcing only one prefix: 7844
RIPE Region transit ASes present in the Internet Routing Table: 2480
Average RIPE Region AS path length visible: 3.7
Max RIPE Region AS path length visible: 23
Number of RIPE region 32-bit ASNs visible in the Routing Table: 933
Number of RIPE addresses announced to Internet: 484812428
Equivalent to 28 /8s, 229 /16s and 166 /24s
Percentage of available RIPE address space announced: 78.1
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: 34128
Total LACNIC prefixes after maximum aggregation: 7630
LACNIC Deaggregation factor: 4.47
Prefixes being announced from the LACNIC address blocks: 33312
Unique aggregates announced from the LACNIC address blocks: 17114
LACNIC Region origin ASes present in the Internet Routing Table: 1492
LACNIC Prefixes per ASN: 22.33
LACNIC Region origin ASes announcing only one prefix: 446
LACNIC Region transit ASes present in the Internet Routing Table: 276
Average LACNIC Region AS path length visible: 4.7
Max LACNIC Region AS path length visible: 20
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 272
Number of LACNIC addresses announced to Internet: 86553600
Equivalent to 5 /8s, 40 /16s and 180 /24s
Percentage of available LACNIC address space announced: 57.3
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: 8423
Total AfriNIC prefixes after maximum aggregation: 1983
AfriNIC Deaggregation factor: 4.25
Prefixes being announced from the AfriNIC address blocks: 6494
Unique aggregates announced from the AfriNIC address blocks: 2032
AfriNIC Region origin ASes present in the Internet Routing Table: 475
AfriNIC Prefixes per ASN: 13.67
AfriNIC Region origin ASes announcing only one prefix: 156
AfriNIC Region transit ASes present in the Internet Routing Table: 104
Average AfriNIC Region AS path length visible: 4.3
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: 25764096
Equivalent to 1 /8s, 137 /16s and 33 /24s
Percentage of available AfriNIC address space announced: 38.4
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 1909 11033 635 Korea Telecom (KIX)
17974 1790 508 32 PT TELEKOMUNIKASI INDONESIA
7545 1555 301 85 TPG Internet Pty Ltd
4755 1502 631 168 Videsh Sanchar Nigam Ltd. Aut
7552 1318 1064 7 Vietel Corporation
24560 1162 336 187 Bharti Airtel Ltd.
9829 1119 936 41 BSNL National Internet Backbo
9583 1076 80 511 Sify Limited
4808 1025 2073 295 CNCGROUP IP network: China169
17488 985 189 110 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 3617 3818 238 bellsouth.net, inc.
18566 1957 372 223 Covad Communications
1785 1813 681 121 AppliedTheory Corporation
4323 1616 1098 402 Time Warner Telecom
20115 1590 1538 623 Charter Communications
19262 1412 4760 392 Verizon Global Networks
7029 1395 1031 209 Windstream Communications Inc
7018 1368 7101 895 AT&T WorldNet Services
22773 1350 2897 87 Cox Communications, Inc.
2386 1260 521 908 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 1032 797 188 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 534 106 185 Tellcom Iletisim Hizmetleri
3292 520 2078 404 TDC Tele Danmark
6830 514 1788 317 UPC Distribution Services
20940 465 132 356 Akamai Technologies European
8866 455 133 26 Bulgarian Telecommunication C
12479 454 593 7 Uni2 Autonomous System
29049 432 32 47 AzerSat LLC.
3320 423 8151 369 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 1559 287 163 TVCABLE BOGOTA
8151 1387 2727 352 Uninet S.A. de C.V.
28573 1283 995 78 Types of queries are: POCs, o
7303 1031 545 173 Telecom Argentina Stet-France
6503 755 354 75 AVANTEL, S.A.
14420 700 56 85 Types of queries are: POCs, o
22047 578 322 17 Types of queries are: POCs, o
10481 548 430 20 Prima S.A.
3816 534 232 96 COLOMBIA TELECOMUNICACIONES S
7738 516 986 31 Telecomunicacoes da Bahia 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 794 445 11 TEDATA
24863 786 147 35 LINKdotNET AS number
15475 511 74 8 Nile Online
16637 302 441 87 Johnnic e-Ventures
3741 265 937 226 The Internet Solution
6713 260 519 14 Itissalat Al-MAGHRIB
36992 260 415 15 Etisalat MISR
33776 226 13 5 Starcomms Nigeria Limited
15706 204 32 6 Sudatel Internet Exchange Aut
24835 177 78 10 RAYA Telecom - Egypt
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 3617 3818 238 bellsouth.net, inc.
23456 2971 713 1587 >>UNKNOWN<<
18566 1957 372 223 Covad Communications
4766 1909 11033 635 Korea Telecom (KIX)
1785 1813 681 121 AppliedTheory Corporation
17974 1790 508 32 PT TELEKOMUNIKASI INDONESIA
4323 1616 1098 402 Time Warner Telecom
20115 1590 1538 623 Charter Communications
10620 1559 287 163 TVCABLE BOGOTA
7545 1555 301 85 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 1790 1758 PT TELEKOMUNIKASI INDONESIA
18566 1957 1734 Covad Communications
1785 1813 1692 AppliedTheory Corporation
7545 1555 1470 TPG Internet Pty Ltd
10620 1559 1396 TVCABLE BOGOTA
23456 2971 1384 >>UNKNOWN<<
4755 1502 1334 Videsh Sanchar Nigam Ltd. Aut
7552 1318 1311 Vietel Corporation
4766 1909 1274 Korea Telecom (KIX)
22773 1350 1263 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 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<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 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 /10:27 /11:80 /12:232
/13:465 /14:804 /15:1431 /16:12174 /17:6139 /18:10128
/19:20064 /20:27418 /21:26852 /22:35377 /23:34471 /24:192033
/25:392 /26:356 /27:187 /28:304 /29:231 /30:678
/31:63 /32:624
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2237 3617 bellsouth.net, inc.
18566 1907 1957 Covad Communications
23456 1472 2971 >>UNKNOWN<<
10620 1454 1559 TVCABLE BOGOTA
11492 1096 1142 Cable One
7029 1074 1395 Windstream Communications Inc
7011 1056 1158 Citizens Utilities
1785 1053 1813 AppliedTheory Corporation
6478 997 1025 AT&T Worldnet Services
286 891 1032 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:338 2:68 4:20 5:1 6:3 8:337
12:1967 13:1 14:490 15:15 16:3 17:5
20:10 23:17 24:1686 27:835 31:506 32:135
33:4 34:2 36:4 38:731 40:104 41:2609
42:35 44:3 46:1061 47:3 49:204 50:383
52:13 54:2 55:3 56:2 57:44 58:865
59:482 60:385 61:1185 62:1068 63:1955 64:4048
65:2299 66:3938 67:1920 68:1290 69:3166 70:816
71:373 72:1900 73:1 74:2477 75:333 76:349
77:902 78:710 79:488 80:1122 81:882 82:517
83:473 84:702 85:1081 86:538 87:784 88:338
89:1578 90:224 91:3976 92:527 93:1079 94:1366
95:924 96:424 97:263 98:929 99:37 101:81
103:149 106:77 107:25 108:81 109:1033 110:619
111:716 112:305 113:411 114:561 115:684 116:1000
117:682 118:867 119:1181 120:316 121:692 122:1607
123:969 124:1311 125:1277 128:247 129:172 130:170
131:581 132:112 133:21 134:215 135:52 136:215
137:139 138:300 139:128 140:480 141:253 142:406
143:419 144:477 145:54 146:454 147:231 148:675
149:249 150:164 151:189 152:338 153:182 154:5
155:399 156:198 157:352 158:140 159:454 160:315
161:204 162:310 163:167 164:506 165:397 166:534
167:434 168:746 169:154 170:837 171:81 172:1
173:1633 174:622 175:384 176:144 177:177 178:1026
180:914 181:23 182:515 183:234 184:344 185:1
186:1307 187:763 188:895 189:949 190:4924 192:5943
193:5019 194:3579 195:3194 196:1226 197:42 198:3594
199:3996 200:5574 201:1480 202:8396 203:8452 204:4242
205:2353 206:2732 207:2813 208:4121 209:3525 210:2684
211:1459 212:2066 213:1810 214:760 215:69 216:5001
217:1664 218:551 219:351 220:1236 221:498 222:359
223:230
End of report
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