Routing Table Report 00:00 GMT Thu 18 Aug, 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: 371738
Prefixes after maximum aggregation: 167583
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 182705
Total ASes present in the Internet Routing Table: 38525
Prefixes per ASN: 9.65
Origin-only ASes present in the Internet Routing Table: 31971
Origin ASes announcing only one prefix: 15383
Transit ASes present in the Internet Routing Table: 5231
Transit-only ASes present in the Internet Routing Table: 148
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 4199
Unregistered ASNs in the Routing Table: 634
Number of 32-bit ASNs allocated by the RIRs: 1650
Number of 32-bit ASNs visible in the Routing Table: 1323
Prefixes from 32-bit ASNs in the Routing Table: 3065
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 108
Number of addresses announced to Internet: 2495357446
Equivalent to 148 /8s, 188 /16s and 34 /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: 91.2
Total number of prefixes smaller than registry allocations: 154285
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90138
Total APNIC prefixes after maximum aggregation: 29341
APNIC Deaggregation factor: 3.07
Prefixes being announced from the APNIC address blocks: 86752
Unique aggregates announced from the APNIC address blocks: 37709
APNIC Region origin ASes present in the Internet Routing Table: 4517
APNIC Prefixes per ASN: 19.21
APNIC Region origin ASes announcing only one prefix: 1260
APNIC Region transit ASes present in the Internet Routing Table: 716
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 68
Number of APNIC addresses announced to Internet: 624290048
Equivalent to 37 /8s, 53 /16s and 233 /24s
Percentage of available APNIC address space announced: 79.2
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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: 145717
Total ARIN prefixes after maximum aggregation: 75335
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 117164
Unique aggregates announced from the ARIN address blocks: 47070
ARIN Region origin ASes present in the Internet Routing Table: 14602
ARIN Prefixes per ASN: 8.02
ARIN Region origin ASes announcing only one prefix: 5608
ARIN Region transit ASes present in the Internet Routing Table: 1519
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 803683864
Equivalent to 47 /8s, 231 /16s and 62 /24s
Percentage of available ARIN address space announced: 63.9
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: 89702
Total RIPE prefixes after maximum aggregation: 49848
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 82113
Unique aggregates announced from the RIPE address blocks: 53463
RIPE Region origin ASes present in the Internet Routing Table: 15901
RIPE Prefixes per ASN: 5.16
RIPE Region origin ASes announcing only one prefix: 7911
RIPE Region transit ASes present in the Internet Routing Table: 2523
Average RIPE Region AS path length visible: 4.1
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 953
Number of RIPE addresses announced to Internet: 488177868
Equivalent to 29 /8s, 25 /16s and 0 /24s
Percentage of available RIPE address space announced: 78.6
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: 34537
Total LACNIC prefixes after maximum aggregation: 7631
LACNIC Deaggregation factor: 4.53
Prefixes being announced from the LACNIC address blocks: 33705
Unique aggregates announced from the LACNIC address blocks: 17324
LACNIC Region origin ASes present in the Internet Routing Table: 1500
LACNIC Prefixes per ASN: 22.47
LACNIC Region origin ASes announcing only one prefix: 450
LACNIC Region transit ASes present in the Internet Routing Table: 276
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 22
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 286
Number of LACNIC addresses announced to Internet: 87580928
Equivalent to 5 /8s, 56 /16s and 97 /24s
Percentage of available LACNIC address space announced: 58.0
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: 8374
Total AfriNIC prefixes after maximum aggregation: 2047
AfriNIC Deaggregation factor: 4.09
Prefixes being announced from the AfriNIC address blocks: 6497
Unique aggregates announced from the AfriNIC address blocks: 2122
AfriNIC Region origin ASes present in the Internet Routing Table: 485
AfriNIC Prefixes per ASN: 13.40
AfriNIC Region origin ASes announcing only one prefix: 154
AfriNIC Region transit ASes present in the Internet Routing Table: 107
Average AfriNIC Region AS path length visible: 4.3
Max AfriNIC Region AS path length visible: 21
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 26916352
Equivalent to 1 /8s, 154 /16s and 182 /24s
Percentage of available AfriNIC address space announced: 40.1
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 1938 11054 647 Korea Telecom (KIX)
17974 1904 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1572 301 82 TPG Internet Pty Ltd
4755 1530 374 166 Videsh Sanchar Nigam Ltd. Aut
7552 1412 1064 7 Vietel Corporation
24560 1198 336 187 Bharti Airtel Ltd.
9829 1136 984 36 BSNL National Internet Backbo
9583 1071 78 493 Sify Limited
4808 1037 2085 296 CNCGROUP IP network: China169
17488 1016 188 138 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 3583 3817 227 bellsouth.net, inc.
18566 1913 365 240 Covad Communications
1785 1819 681 123 AppliedTheory Corporation
4323 1618 1102 401 Time Warner Telecom
7029 1613 1029 208 Windstream Communications Inc
20115 1585 1537 629 Charter Communications
22773 1435 2903 97 Cox Communications, Inc.
19262 1405 4778 395 Verizon Global Networks
7018 1368 7085 897 AT&T WorldNet Services
2386 1248 517 898 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 1033 797 191 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 539 107 183 Tellcom Iletisim Hizmetleri
3292 520 2080 404 TDC Tele Danmark
6830 513 1788 317 UPC Distribution Services
20940 474 136 367 Akamai Technologies European
8866 458 133 26 Bulgarian Telecommunication C
12479 456 593 7 Uni2 Autonomous System
3320 424 8151 370 Deutsche Telekom AG
29049 417 31 55 AzerSat LLC.
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 1587 293 163 TVCABLE BOGOTA
8151 1444 2745 358 Uninet S.A. de C.V.
28573 1257 996 67 Types of queries are: POCs, o
7303 1066 578 175 Telecom Argentina Stet-France
6503 752 450 77 AVANTEL, S.A.
14420 705 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 533 232 97 COLOMBIA TELECOMUNICACIONES S
27947 519 54 49 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 809 145 58 LINKdotNET AS number
8452 637 445 11 TEDATA
15475 512 74 8 Nile Online
36992 307 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
15706 253 32 6 Sudatel Internet Exchange Aut
6713 244 519 14 Itissalat Al-MAGHRIB
33776 226 13 8 Starcomms Nigeria Limited
12258 195 28 62 YEBO-AS
24835 179 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 3583 3817 227 bellsouth.net, inc.
23456 3065 732 1647 >>UNKNOWN<<
4766 1938 11054 647 Korea Telecom (KIX)
18566 1913 365 240 Covad Communications
17974 1904 516 31 PT TELEKOMUNIKASI INDONESIA
1785 1819 681 123 AppliedTheory Corporation
4323 1618 1102 401 Time Warner Telecom
7029 1613 1029 208 Windstream Communications Inc
10620 1587 293 163 TVCABLE BOGOTA
20115 1585 1537 629 Charter Communications
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 1904 1873 PT TELEKOMUNIKASI INDONESIA
1785 1819 1696 AppliedTheory Corporation
18566 1913 1673 Covad Communications
7545 1572 1490 TPG Internet Pty Ltd
10620 1587 1424 TVCABLE BOGOTA
23456 3065 1418 >>UNKNOWN<<
7029 1613 1405 Windstream Communications Inc
7552 1412 1405 Vietel Corporation
4755 1530 1364 Videsh Sanchar Nigam Ltd. Aut
22773 1435 1338 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
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 KPNQwest Backbone AS
10.29.245.27/32 286 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 /8:21 /9:12 /10:27 /11:81 /12:233
/13:466 /14:803 /15:1443 /16:12187 /17:6177 /18:10228
/19:20069 /20:27650 /21:27038 /22:35822 /23:34771 /24:192974
/25:79 /26:86 /27:111 /28:283 /29:70 /30:529
/31:92 /32:486
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2215 3583 bellsouth.net, inc.
18566 1869 1913 Covad Communications
23456 1507 3065 >>UNKNOWN<<
10620 1482 1587 TVCABLE BOGOTA
7029 1298 1613 Windstream Communications Inc
11492 1100 1146 Cable One
7011 1057 1160 Citizens Utilities
1785 1052 1819 AppliedTheory Corporation
22773 931 1435 Cox Communications, Inc.
30036 909 932 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:354 2:47 4:19 5:1 6:3 8:341
12:1960 13:1 14:519 15:15 16:3 17:5
20:10 23:18 24:1691 27:869 31:518 32:149
33:4 34:2 36:4 38:737 40:107 41:2534
42:45 44:3 46:1063 47:3 49:219 50:402
52:13 54:2 55:6 56:2 57:45 58:863
59:500 60:376 61:1185 62:1092 63:1953 64:4051
65:2302 66:3970 67:1945 68:1283 69:3194 70:825
71:373 72:1877 73:1 74:2483 75:341 76:347
77:863 78:707 79:489 80:1132 81:834 82:509
83:478 84:695 85:1081 86:515 87:843 88:341
89:1557 90:224 91:4056 92:527 93:1145 94:1351
95:876 96:423 97:266 98:937 99:37 101:79
103:196 106:69 107:32 108:80 109:1019 110:640
111:732 112:305 113:413 114:561 115:694 116:1011
117:681 118:872 119:1190 120:312 121:703 122:1607
123:979 124:1313 125:1342 128:247 129:179 130:169
131:579 132:116 133:21 134:214 135:51 136:216
137:138 138:296 139:129 140:488 141:276 142:385
143:427 144:489 145:58 146:462 147:227 148:697
149:254 150:163 151:190 152:440 153:184 154:5
155:401 156:199 157:332 158:133 159:459 160:318
161:207 162:328 163:164 164:516 165:397 166:536
167:435 168:746 169:154 170:845 171:81 172:1
173:1660 174:624 175:392 176:154 177:218 178:1001
180:939 181:26 182:534 183:242 184:365 185:1
186:1368 187:742 188:932 189:929 190:5114 192:5953
193:4992 194:3552 195:3114 196:1218 197:127 198:3600
199:4045 200:5515 201:1491 202:8421 203:8477 204:4253
205:2341 206:2734 207:2811 208:4130 209:3500 210:2702
211:1464 212:2135 213:1781 214:776 215:70 216:4921
217:1624 218:557 219:351 220:1223 221:516 222:360
223:236
End of report
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