Routing Table Report 00:00 GMT Sun 19 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: 343970
Prefixes after maximum aggregation: 154827
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 166821
Total ASes present in the Internet Routing Table: 35543
Prefixes per ASN: 9.68
Origin-only ASes present in the Internet Routing Table: 30565
Origin ASes announcing only one prefix: 14883
Transit ASes present in the Internet Routing Table: 4978
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: 35
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 395
Unregistered ASNs in the Routing Table: 150
Number of 32-bit ASNs allocated by the RIRs: 961
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: 196
Number of addresses announced to Internet: 2342018443
Equivalent to 139 /8s, 152 /16s and 93 /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: 86.7
Total number of prefixes smaller than registry allocations: 141748
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 81849
Total APNIC prefixes after maximum aggregation: 27682
APNIC Deaggregation factor: 2.96
Prefixes being announced from the APNIC address blocks: 78918
Unique aggregates announced from the APNIC address blocks: 35146
APNIC Region origin ASes present in the Internet Routing Table: 4253
APNIC Prefixes per ASN: 18.56
APNIC Region origin ASes announcing only one prefix: 1214
APNIC Region transit ASes present in the Internet Routing Table: 685
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 35
Number of APNIC addresses announced to Internet: 574751426
Equivalent to 34 /8s, 66 /16s and 2 /24s
Percentage of available APNIC address space announced: 77.9
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, 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: 140087
Total ARIN prefixes after maximum aggregation: 72143
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 110869
Unique aggregates announced from the ARIN address blocks: 43840
ARIN Region origin ASes present in the Internet Routing Table: 14094
ARIN Prefixes per ASN: 7.87
ARIN Region origin ASes announcing only one prefix: 5378
ARIN Region transit ASes present in the Internet Routing Table: 1488
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 25
Number of ARIN addresses announced to Internet: 743946889
Equivalent to 44 /8s, 87 /16s and 186 /24s
Percentage of available ARIN address space announced: 62.5
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: 82873
Total RIPE prefixes after maximum aggregation: 45802
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 75579
Unique aggregates announced from the RIPE address blocks: 47181
RIPE Region origin ASes present in the Internet Routing Table: 15165
RIPE Prefixes per ASN: 4.98
RIPE Region origin ASes announcing only one prefix: 7715
RIPE Region transit ASes present in the Internet Routing Table: 2387
Average RIPE Region AS path length visible: 4.4
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 452052949
Equivalent to 26 /8s, 241 /16s and 199 /24s
Percentage of available RIPE address space announced: 74.8
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: 31115
Total LACNIC prefixes after maximum aggregation: 7124
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 29856
Unique aggregates announced from the LACNIC address blocks: 15459
LACNIC Region origin ASes present in the Internet Routing Table: 1409
LACNIC Prefixes per ASN: 21.19
LACNIC Region origin ASes announcing only one prefix: 438
LACNIC Region transit ASes present in the Internet Routing Table: 249
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 78645452
Equivalent to 4 /8s, 176 /16s and 8 /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: 7780
Total AfriNIC prefixes after maximum aggregation: 1956
AfriNIC Deaggregation factor: 3.98
Prefixes being announced from the AfriNIC address blocks: 6070
Unique aggregates announced from the AfriNIC address blocks: 1776
AfriNIC Region origin ASes present in the Internet Routing Table: 431
AfriNIC Prefixes per ASN: 14.08
AfriNIC Region origin ASes announcing only one prefix: 138
AfriNIC Region transit ASes present in the Internet Routing Table: 96
Average AfriNIC Region AS path length visible: 4.2
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21627392
Equivalent to 1 /8s, 74 /16s and 2 /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 1725 9453 516 Korea Telecom (KIX)
7545 1540 298 74 TPG Internet Pty Ltd
4755 1405 650 137 Videsh Sanchar Nigam Ltd. Aut
17974 1231 308 103 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 905 116 136 Reliance Infocom Ltd Internet
9829 821 696 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 3732 3872 270 bellsouth.net, inc.
4323 2632 1091 396 Time Warner Telecom
19262 1837 4873 284 Verizon Global Networks
1785 1789 697 133 AppliedTheory Corporation
20115 1558 1534 639 Charter Communications
6478 1437 290 52 AT&T Worldnet Services
7018 1369 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
286 953 711 151 KPNQwest Backbone AS
9116 542 328 33 Goldenlines main autonomous s
3292 503 2010 386 TDC Tele Danmark
6830 503 1763 309 UPC Distribution Services
8866 440 133 23 Bulgarian Telecommunication C
34984 440 96 133 Tellcom Iletisim Hizmetleri
9121 438 1690 29 TTnet Autonomous System
9198 417 202 13 Kazakhtelecom Corporate Sales
8551 405 355 39 Bezeq International
702 401 1867 315 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 365 Uninet S.A. de C.V.
10620 1343 250 154 TVCABLE BOGOTA
28573 1217 932 84 Types of queries are: POCs, o
6503 1187 355 80 AVANTEL, S.A.
7303 832 441 109 Telecom Argentina Stet-France
14420 584 49 88 Types of queries are: POCs, o
22047 565 310 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 1167 445 10 TEDATA
24863 746 147 39 LINKdotNET AS number
36992 661 283 155 Etisalat MISR
3741 263 986 225 The Internet Solution
24835 217 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 3732 3872 270 bellsouth.net, inc.
4323 2632 1091 396 Time Warner Telecom
19262 1837 4873 284 Verizon Global Networks
1785 1789 697 133 AppliedTheory Corporation
4766 1725 9453 516 Korea Telecom (KIX)
20115 1558 1534 639 Charter Communications
7545 1540 298 74 TPG Internet Pty Ltd
6478 1437 290 52 AT&T Worldnet Services
4755 1405 650 137 Videsh Sanchar Nigam Ltd. Aut
7018 1369 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 2632 2236 Time Warner Telecom
1785 1789 1656 AppliedTheory Corporation
19262 1837 1553 Verizon Global Networks
7545 1540 1466 TPG Internet Pty Ltd
6478 1437 1385 AT&T Worldnet Services
4755 1405 1268 Videsh Sanchar Nigam Ltd. Aut
4766 1725 1209 Korea Telecom (KIX)
11492 1271 1196 Cable One
10620 1343 1189 TVCABLE BOGOTA
22773 1257 1182 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
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
23.0.0.0/12 31377 Akamai Technologies BOS ASN
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
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 /15:1373 /16:11506 /17:5758 /18:9503
/19:19162 /20:24616 /21:24624 /22:32215 /23:31479 /24:179211
/25:371 /26:378 /27:205 /28:385 /29:309 /30:690
/31:39 /32:616
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2304 3732 bellsouth.net, inc.
4323 1423 2632 Time Warner Telecom
6478 1394 1437 AT&T Worldnet Services
10620 1235 1343 TVCABLE BOGOTA
11492 1226 1271 Cable One
18566 1076 1095 Covad Communications
7011 1071 1174 Citizens Utilities
1785 1062 1789 AppliedTheory Corporation
8452 1055 1167 TEDATA
6503 972 1187 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:141 2:23 4:17 5:1 8:320 12:2037
13:6 14:90 15:17 16:3 17:8 20:9
24:1460 27:490 32:144 33:5 34:2 36:1
37:1 38:717 40:101 41:2753 42:1 44:3
46:396 47:4 49:74 50:27 52:12 55:3
56:2 57:41 58:861 59:509 60:393 61:1112
62:1066 63:1940 64:3733 65:2326 66:4105 67:1787
68:1146 69:2916 70:754 71:391 72:1993 73:3
74:2337 75:300 76:324 77:867 78:750 79:445
80:1050 81:801 82:538 83:455 84:654 85:1079
86:515 87:742 88:411 89:1616 90:143 91:3360
92:473 93:1025 94:1167 95:708 96:408 97:247
98:721 99:33 101:3 107:2 108:77 109:835
110:473 111:672 112:309 113:321 114:481 115:664
116:907 117:655 118:593 119:1003 120:199 121:739
122:1570 123:1025 124:1228 125:1207 128:231 129:155
130:171 131:564 132:227 133:20 134:208 135:50
136:212 137:148 138:290 139:127 140:476 141:197
142:354 143:359 144:484 145:53 146:424 147:197
148:629 149:327 150:150 151:230 152:296 153:172
154:3 155:371 156:166 157:338 158:126 159:369
160:313 161:198 162:274 163:164 164:435 165:353
166:471 167:418 168:756 169:154 170:726 171:67
172:2 173:1156 174:482 175:264 176:1 177:2
178:657 180:730 182:484 183:241 184:206 186:842
187:771 188:889 189:1041 190:4278 192:5819 193:4811
194:3531 195:3046 196:1193 197:1 198:3549 199:3694
200:5546 201:1582 202:8395 203:8372 204:4052 205:2337
206:2582 207:2968 208:3868 209:3493 210:2566 211:1337
212:1950 213:1756 214:737 215:62 216:4820 217:1630
218:527 219:388 220:1184 221:445 222:314 223:81
End of report
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