Routing Table Report 00:00 GMT Sat 16 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: 369960
Prefixes after maximum aggregation: 166698
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 180628
Total ASes present in the Internet Routing Table: 38236
Prefixes per ASN: 9.68
Origin-only ASes present in the Internet Routing Table: 31771
Origin ASes announcing only one prefix: 15217
Transit ASes present in the Internet Routing Table: 5191
Transit-only ASes present in the Internet Routing Table: 126
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 31
Max AS path prepend of ASN (22394) 27
Prefixes from unregistered ASNs in the Routing Table: 3982
Unregistered ASNs in the Routing Table: 558
Number of 32-bit ASNs allocated by the RIRs: 1559
Number of 32-bit ASNs visible in the Routing Table: 1274
Prefixes from 32-bit ASNs in the Routing Table: 2940
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 125
Number of addresses announced to Internet: 2479480968
Equivalent to 147 /8s, 201 /16s and 224 /24s
Percentage of available address space announced: 66.9
Percentage of allocated address space announced: 66.9
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: 154110
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 88800
Total APNIC prefixes after maximum aggregation: 29187
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 85511
Unique aggregates announced from the APNIC address blocks: 37440
APNIC Region origin ASes present in the Internet Routing Table: 4504
APNIC Prefixes per ASN: 18.99
APNIC Region origin ASes announcing only one prefix: 1264
APNIC Region transit ASes present in the Internet Routing Table: 705
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: 61
Number of APNIC addresses announced to Internet: 622209474
Equivalent to 37 /8s, 22 /16s and 41 /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: 145246
Total ARIN prefixes after maximum aggregation: 75017
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 116818
Unique aggregates announced from the ARIN address blocks: 46718
ARIN Region origin ASes present in the Internet Routing Table: 14491
ARIN Prefixes per ASN: 8.06
ARIN Region origin ASes announcing only one prefix: 5523
ARIN Region transit ASes present in the Internet Routing Table: 1502
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 31
Number of ARIN region 32-bit ASNs visible in the Routing Table: 13
Number of ARIN addresses announced to Internet: 803149464
Equivalent to 47 /8s, 223 /16s and 22 /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: 90054
Total RIPE prefixes after maximum aggregation: 49633
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 82636
Unique aggregates announced from the RIPE address blocks: 52692
RIPE Region origin ASes present in the Internet Routing Table: 15840
RIPE Prefixes per ASN: 5.22
RIPE Region origin ASes announcing only one prefix: 7838
RIPE Region transit ASes present in the Internet Routing Table: 2528
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 25
Number of RIPE region 32-bit ASNs visible in the Routing Table: 930
Number of RIPE addresses announced to Internet: 480196620
Equivalent to 28 /8s, 159 /16s and 56 /24s
Percentage of available RIPE address space announced: 77.4
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: 34241
Total LACNIC prefixes after maximum aggregation: 7649
LACNIC Deaggregation factor: 4.48
Prefixes being announced from the LACNIC address blocks: 33325
Unique aggregates announced from the LACNIC address blocks: 17060
LACNIC Region origin ASes present in the Internet Routing Table: 1482
LACNIC Prefixes per ASN: 22.49
LACNIC Region origin ASes announcing only one prefix: 444
LACNIC Region transit ASes present in the Internet Routing Table: 269
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: 266
Number of LACNIC addresses announced to Internet: 86090504
Equivalent to 5 /8s, 33 /16s and 163 /24s
Percentage of available LACNIC address space announced: 57.0
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: 8402
Total AfriNIC prefixes after maximum aggregation: 1973
AfriNIC Deaggregation factor: 4.26
Prefixes being announced from the AfriNIC address blocks: 6501
Unique aggregates announced from the AfriNIC address blocks: 1992
AfriNIC Region origin ASes present in the Internet Routing Table: 470
AfriNIC Prefixes per ASN: 13.83
AfriNIC Region origin ASes announcing only one prefix: 148
AfriNIC Region transit ASes present in the Internet Routing Table: 105
Average AfriNIC Region AS path length visible: 4.3
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 24388352
Equivalent to 1 /8s, 116 /16s and 35 /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 1910 11036 633 Korea Telecom (KIX)
7545 1553 301 85 TPG Internet Pty Ltd
17974 1546 456 45 PT TELEKOMUNIKASI INDONESIA
4755 1503 375 168 Videsh Sanchar Nigam Ltd. Aut
7552 1284 1064 7 Vietel Corporation
24560 1155 336 187 Bharti Airtel Ltd.
9829 1106 923 47 BSNL National Internet Backbo
9583 1064 78 504 Sify Limited
17488 981 187 106 Hathway IP Over Cable Interne
4808 954 2016 274 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 3598 3818 241 bellsouth.net, inc.
18566 1957 372 223 Covad Communications
1785 1809 681 121 AppliedTheory Corporation
4323 1655 1098 401 Time Warner Telecom
20115 1616 1534 627 Charter Communications
19262 1428 4784 393 Verizon Global Networks
7018 1373 7085 900 AT&T WorldNet Services
7029 1370 975 210 Windstream Communications Inc
22773 1351 2897 88 Cox Communications, Inc.
2386 1261 521 907 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 1037 797 186 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 535 106 184 Tellcom Iletisim Hizmetleri
3292 523 2078 403 TDC Tele Danmark
6830 513 1780 317 UPC Distribution Services
20940 461 131 356 Akamai Technologies European
12479 458 593 7 Uni2 Autonomous System
8866 451 133 25 Bulgarian Telecommunication C
29049 432 32 47 AzerSat LLC.
3320 422 8151 368 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 1557 286 164 TVCABLE BOGOTA
8151 1463 2728 356 Uninet S.A. de C.V.
28573 1276 995 77 Types of queries are: POCs, o
7303 1009 512 177 Telecom Argentina Stet-France
6503 760 354 75 AVANTEL, S.A.
14420 690 55 84 Types of queries are: POCs, o
22047 578 322 17 Types of queries are: POCs, o
10481 548 430 20 Prima S.A.
3816 533 230 97 COLOMBIA TELECOMUNICACIONES S
27947 521 54 48 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 795 147 36 LINKdotNET AS number
8452 780 445 11 TEDATA
15475 513 74 8 Nile Online
36992 315 415 14 Etisalat MISR
16637 294 441 87 Johnnic e-Ventures
3741 261 937 223 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 227 13 5 Starcomms Nigeria Limited
24835 175 78 10 RAYA Telecom - Egypt
29571 158 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 3598 3818 241 bellsouth.net, inc.
23456 2940 710 1576 >>UNKNOWN<<
18566 1957 372 223 Covad Communications
4766 1910 11036 633 Korea Telecom (KIX)
1785 1809 681 121 AppliedTheory Corporation
4323 1655 1098 401 Time Warner Telecom
20115 1616 1534 627 Charter Communications
10620 1557 286 164 TVCABLE BOGOTA
7545 1553 301 85 TPG Internet Pty Ltd
17974 1546 456 45 PT TELEKOMUNIKASI INDONESIA
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 1734 Covad Communications
1785 1809 1688 AppliedTheory Corporation
17974 1546 1501 PT TELEKOMUNIKASI INDONESIA
7545 1553 1468 TPG Internet Pty Ltd
10620 1557 1393 TVCABLE BOGOTA
23456 2940 1364 >>UNKNOWN<<
4755 1503 1335 Videsh Sanchar Nigam Ltd. Aut
4766 1910 1277 Korea Telecom (KIX)
7552 1284 1277 Vietel Corporation
22773 1351 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 /10:26 /11:80 /12:232
/13:464 /14:801 /15:1425 /16:12126 /17:6140 /18:10130
/19:20056 /20:27246 /21:26790 /22:35325 /23:34329 /24:191726
/25:390 /26:355 /27:183 /28:367 /29:285 /30:703
/31:63 /32:686
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2215 3598 bellsouth.net, inc.
18566 1907 1957 Covad Communications
10620 1452 1557 TVCABLE BOGOTA
23456 1444 2940 >>UNKNOWN<<
11492 1097 1143 Cable One
7029 1065 1370 Windstream Communications Inc
7011 1056 1158 Citizens Utilities
6478 1055 1084 AT&T Worldnet Services
1785 1053 1809 AppliedTheory Corporation
286 898 1037 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:328 2:67 4:20 5:1 6:3 8:340
12:1972 13:1 14:490 15:15 16:3 17:5
20:10 23:14 24:1684 27:826 31:505 32:135
33:4 34:2 36:4 38:747 40:104 41:2566
42:32 44:3 46:1043 47:3 49:201 50:471
52:13 54:2 55:5 56:2 57:45 58:865
59:480 60:386 61:1126 62:1056 63:1957 64:4012
65:2301 66:3938 67:1907 68:1282 69:3156 70:801
71:390 72:1921 73:1 74:2438 75:330 76:349
77:927 78:717 79:479 80:1127 81:883 82:515
83:460 84:702 85:1081 86:542 87:784 88:342
89:1578 90:224 91:3981 92:523 93:1070 94:1369
95:915 96:415 97:261 98:927 99:37 101:77
103:143 106:10 107:22 108:79 109:1029 110:615
111:713 112:305 113:409 114:558 115:689 116:993
117:689 118:831 119:1162 120:313 121:695 122:1608
123:973 124:1304 125:1278 128:246 129:175 130:169
131:578 132:111 133:21 134:214 135:48 136:216
137:137 138:297 139:129 140:482 141:244 142:406
143:417 144:484 145:55 146:453 147:222 148:682
149:248 150:160 151:189 152:342 153:182 154:4
155:397 156:199 157:353 158:138 159:454 160:312
161:202 162:309 163:164 164:499 165:397 166:532
167:435 168:736 169:154 170:851 171:78 172:1
173:1637 174:611 175:377 176:143 177:171 178:1015
180:905 181:24 182:497 183:232 184:346 185:1
186:1287 187:735 188:897 189:944 190:4989 192:5932
193:5018 194:3589 195:3193 196:1250 197:43 198:3594
199:3986 200:5567 201:1492 202:8425 203:8444 204:4230
205:2349 206:2732 207:2822 208:4099 209:3536 210:2699
211:1456 212:2130 213:1812 214:774 215:69 216:4994
217:1645 218:545 219:362 220:1235 221:498 222:338
223:219
End of report
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