Routing Table Report 00:00 GMT Tue 21 Dec, 2010
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: 344176
Prefixes after maximum aggregation: 154774
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 166830
Total ASes present in the Internet Routing Table: 35564
Prefixes per ASN: 9.68
Origin-only ASes present in the Internet Routing Table: 30582
Origin ASes announcing only one prefix: 14908
Transit ASes present in the Internet Routing Table: 4982
Transit-only ASes present in the Internet Routing Table: 129
Average AS path length visible in the Internet Routing Table: 4.1
Max AS path length visible: 31
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 399
Unregistered ASNs in the Routing Table: 148
Number of 32-bit ASNs allocated by the RIRs: 965
Prefixes from 32-bit ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 73
Prefixes being announced from unallocated address space: 195
Number of addresses announced to Internet: 2343031691
Equivalent to 139 /8s, 167 /16s and 211 /24s
Percentage of available address space announced: 63.2
Percentage of allocated address space announced: 65.3
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 86.8
Total number of prefixes smaller than registry allocations: 141729
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 82108
Total APNIC prefixes after maximum aggregation: 27639
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 79135
Unique aggregates announced from the APNIC address blocks: 35052
APNIC Region origin ASes present in the Internet Routing Table: 4265
APNIC Prefixes per ASN: 18.55
APNIC Region origin ASes announcing only one prefix: 1225
APNIC Region transit ASes present in the Internet Routing Table: 684
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 575640770
Equivalent to 34 /8s, 79 /16s and 148 /24s
Percentage of available APNIC address space announced: 78.0
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, 42/8, 43/8, 49/8,
58/8, 59/8, 60/8, 61/8, 101/8, 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: 140071
Total ARIN prefixes after maximum aggregation: 72114
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 110896
Unique aggregates announced from the ARIN address blocks: 43898
ARIN Region origin ASes present in the Internet Routing Table: 14096
ARIN Prefixes per ASN: 7.87
ARIN Region origin ASes announcing only one prefix: 5386
ARIN Region transit ASes present in the Internet Routing Table: 1492
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 25
Number of ARIN addresses announced to Internet: 745128329
Equivalent to 44 /8s, 105 /16s and 193 /24s
Percentage of available ARIN address space announced: 62.6
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, 47/8, 48/8, 50/8, 52/8, 54/8,
55/8, 56/8, 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,
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: 82993
Total RIPE prefixes after maximum aggregation: 45824
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 75696
Unique aggregates announced from the RIPE address blocks: 47216
RIPE Region origin ASes present in the Internet Routing Table: 15175
RIPE Prefixes per ASN: 4.99
RIPE Region origin ASes announcing only one prefix: 7722
RIPE Region transit ASes present in the Internet Routing Table: 2390
Average RIPE Region AS path length visible: 4.4
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 452168405
Equivalent to 26 /8s, 243 /16s and 138 /24s
Percentage of available RIPE address space announced: 74.9
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, 196608-197631
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, 193/8, 194/8, 195/8, 212/8, 213/8,
217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 31098
Total LACNIC prefixes after maximum aggregation: 7124
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 29833
Unique aggregates announced from the LACNIC address blocks: 15451
LACNIC Region origin ASes present in the Internet Routing Table: 1407
LACNIC Prefixes per ASN: 21.20
LACNIC Region origin ASes announcing only one prefix: 435
LACNIC Region transit ASes present in the Internet Routing Table: 250
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 78634956
Equivalent to 4 /8s, 175 /16s and 223 /24s
Percentage of available LACNIC address space announced: 58.6
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 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: 7640
Total AfriNIC prefixes after maximum aggregation: 1953
AfriNIC Deaggregation factor: 3.91
Prefixes being announced from the AfriNIC address blocks: 5926
Unique aggregates announced from the AfriNIC address blocks: 1785
AfriNIC Region origin ASes present in the Internet Routing Table: 430
AfriNIC Prefixes per ASN: 13.78
AfriNIC Region origin ASes announcing only one prefix: 140
AfriNIC Region transit ASes present in the Internet Routing Table: 95
Average AfriNIC Region AS path length visible: 4.2
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21648640
Equivalent to 1 /8s, 74 /16s and 85 /24s
Percentage of available AfriNIC address space announced: 43.0
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1738 9486 522 Korea Telecom (KIX)
7545 1544 298 75 TPG Internet Pty Ltd
4755 1409 651 138 Videsh Sanchar Nigam Ltd. Aut
17974 1348 459 28 PT TELEKOMUNIKASI INDONESIA
24560 1045 313 177 Bharti Airtel Ltd.
9583 1039 75 488 Sify Limited
17488 969 157 111 Hathway IP Over Cable Interne
4808 946 1641 259 CNCGROUP IP network: China169
18101 906 116 137 Reliance Infocom Ltd Internet
9829 824 696 31 BSNL National Internet Backbo
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 3730 3871 271 bellsouth.net, inc.
4323 2633 1091 396 Time Warner Telecom
19262 1838 4889 285 Verizon Global Networks
1785 1789 697 133 AppliedTheory Corporation
20115 1558 1534 638 Charter Communications
6478 1436 290 60 AT&T Worldnet Services
7018 1368 5678 882 AT&T WorldNet Services
2386 1309 570 930 AT&T Data Communications Serv
11492 1271 233 75 Cable One
22773 1257 2864 75 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
286 954 711 151 KPNQwest Backbone AS
9116 542 328 33 Goldenlines main autonomous s
3292 503 2010 386 TDC Tele Danmark
6830 502 1763 308 UPC Distribution Services
34984 449 96 133 Tellcom Iletisim Hizmetleri
8866 440 133 23 Bulgarian Telecommunication C
9121 439 1690 29 TTnet Autonomous System
9198 417 202 13 Kazakhtelecom Corporate Sales
8551 405 355 39 Bezeq International
702 403 1867 317 UUNET - Commercial IP service
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
8151 1353 2593 366 Uninet S.A. de C.V.
10620 1348 251 156 TVCABLE BOGOTA
28573 1228 933 79 Types of queries are: POCs, o
6503 1189 355 80 AVANTEL, S.A.
7303 833 441 108 Telecom Argentina Stet-France
14420 583 49 87 Types of queries are: POCs, o
22047 560 310 15 Types of queries are: POCs, o
3816 494 216 101 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 452 32 30 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 1023 445 10 TEDATA
24863 746 147 39 LINKdotNET AS number
36992 664 283 156 Etisalat MISR
3741 263 986 225 The Internet Solution
24835 218 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
29571 199 19 11 Ci Telecom Autonomous system
2018 196 277 64 TENET-1
33776 184 12 14 Starcomms Nigeria Limited
16637 164 440 89 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 3730 3871 271 bellsouth.net, inc.
4323 2633 1091 396 Time Warner Telecom
19262 1838 4889 285 Verizon Global Networks
1785 1789 697 133 AppliedTheory Corporation
4766 1738 9486 522 Korea Telecom (KIX)
20115 1558 1534 638 Charter Communications
7545 1544 298 75 TPG Internet Pty Ltd
6478 1436 290 60 AT&T Worldnet Services
4755 1409 651 138 Videsh Sanchar Nigam Ltd. Aut
7018 1368 5678 882 AT&T WorldNet Services
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 2633 2237 Time Warner Telecom
1785 1789 1656 AppliedTheory Corporation
19262 1838 1553 Verizon Global Networks
7545 1544 1469 TPG Internet Pty Ltd
6478 1436 1376 AT&T Worldnet Services
17974 1348 1320 PT TELEKOMUNIKASI INDONESIA
4755 1409 1271 Videsh Sanchar Nigam Ltd. Aut
4766 1738 1216 Korea Telecom (KIX)
11492 1271 1196 Cable One
10620 1348 1192 TVCABLE BOGOTA
Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
13746 UNALLOCATED 12.24.56.0/24 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
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
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 KPNQwest Backbone AS
10.29.245.27/32 286 KPNQwest Backbone AS
10.29.245.28/32 286 KPNQwest Backbone AS
10.29.245.29/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
5.0.0.0/16 12654 RIPE NCC RIS Project
5.1.0.0/21 12654 RIPE NCC RIS Project
5.1.24.0/24 12654 RIPE NCC RIS Project
24.129.192.0/19 7922 Continental Cablevision
37.0.0.0/16 12654 RIPE NCC RIS Project
37.1.0.0/21 12654 RIPE NCC RIS Project
37.1.24.0/24 12654 RIPE NCC RIS Project
36.126.8.255/8 77 Johns Hopkins University Appl
41.222.79.0/24 36938 Amsco Telecommunications Nige
41.223.92.0/22 36936 >>UNKNOWN<<
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 /9:10 /10:25 /11:71 /12:214
/13:431 /14:758 /15:1374 /16:11519 /17:5761 /18:9510
/19:19163 /20:24653 /21:24648 /22:32305 /23:31515 /24:179210
/25:372 /26:374 /27:205 /28:381 /29:305 /30:686
/31:40 /32:625
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2302 3730 bellsouth.net, inc.
4323 1423 2633 Time Warner Telecom
6478 1393 1436 AT&T Worldnet Services
10620 1240 1348 TVCABLE BOGOTA
11492 1226 1271 Cable One
18566 1076 1095 Covad Communications
7011 1071 1174 Citizens Utilities
1785 1062 1789 AppliedTheory Corporation
6503 974 1189 AVANTEL, S.A.
19262 956 1838 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:144 2:26 4:17 5:1 8:320 12:2038
13:6 14:96 15:15 16:3 17:8 20:9
24:1478 27:491 32:144 33:5 34:2 36:1
37:1 38:716 40:101 41:2603 42:1 44:3
46:408 47:4 49:74 50:29 52:12 55:4
56:2 57:41 58:863 59:518 60:392 61:1127
62:1069 63:1949 64:3736 65:2325 66:4103 67:1788
68:1149 69:2922 70:754 71:391 72:2000 73:3
74:2331 75:300 76:326 77:863 78:751 79:448
80:1068 81:805 82:541 83:455 84:653 85:1076
86:519 87:743 88:413 89:1613 90:146 91:3363
92:481 93:1019 94:1148 95:716 96:410 97:246
98:718 99:33 101:4 107:2 108:77 109:836
110:442 111:671 112:309 113:320 114:480 115:689
116:904 117:656 118:611 119:1010 120:199 121:755
122:1569 123:1027 124:1228 125:1213 128:232 129:155
130:171 131:564 132:234 133:20 134:208 135:50
136:212 137:149 138:291 139:126 140:481 141:197
142:343 143:360 144:489 145:53 146:424 147:195
148:629 149:327 150:150 151:230 152:297 153:172
154:3 155:371 156:166 157:339 158:126 159:369
160:315 161:199 162:277 163:164 164:435 165:353
166:470 167:418 168:756 169:154 170:727 171:67
172:2 173:1157 174:485 175:263 176:1 177:2
178:658 180:736 182:419 183:235 184:208 186:841
187:775 188:893 189:1041 190:4274 192:5811 193:4816
194:3532 195:3048 196:1195 197:1 198:3546 199:3698
200:5537 201:1582 202:8416 203:8382 204:4048 205:2333
206:2574 207:2967 208:3868 209:3489 210:2571 211:1337
212:1956 213:1766 214:735 215:62 216:4803 217:1629
218:523 219:392 220:1185 221:445 222:342 223:84
End of report
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