Routing Table Report 00:00 GMT Tue 14 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: 343501
Prefixes after maximum aggregation: 154454
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 166710
Total ASes present in the Internet Routing Table: 35498
Prefixes per ASN: 9.68
Origin-only ASes present in the Internet Routing Table: 30538
Origin ASes announcing only one prefix: 14883
Transit ASes present in the Internet Routing Table: 4960
Transit-only ASes present in the Internet Routing Table: 115
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 24
Max AS path prepend of ASN (41664) 21
Prefixes from unregistered ASNs in the Routing Table: 920
Unregistered ASNs in the Routing Table: 380
Number of 32-bit ASNs allocated by the RIRs: 948
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: 2339580359
Equivalent to 139 /8s, 115 /16s and 41 /24s
Percentage of available address space announced: 63.1
Percentage of allocated address space announced: 65.2
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 86.6
Total number of prefixes smaller than registry allocations: 141370
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 81956
Total APNIC prefixes after maximum aggregation: 27568
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 79022
Unique aggregates announced from the APNIC address blocks: 34992
APNIC Region origin ASes present in the Internet Routing Table: 4256
APNIC Prefixes per ASN: 18.57
APNIC Region origin ASes announcing only one prefix: 1217
APNIC Region transit ASes present in the Internet Routing Table: 673
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 574629314
Equivalent to 34 /8s, 64 /16s and 37 /24s
Percentage of available APNIC address space announced: 77.8
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: 140032
Total ARIN prefixes after maximum aggregation: 71982
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 110658
Unique aggregates announced from the ARIN address blocks: 43878
ARIN Region origin ASes present in the Internet Routing Table: 14071
ARIN Prefixes per ASN: 7.86
ARIN Region origin ASes announcing only one prefix: 5367
ARIN Region transit ASes present in the Internet Routing Table: 1454
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 743623817
Equivalent to 44 /8s, 82 /16s and 204 /24s
Percentage of available ARIN address space announced: 62.4
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: 82674
Total RIPE prefixes after maximum aggregation: 45739
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 75370
Unique aggregates announced from the RIPE address blocks: 47156
RIPE Region origin ASes present in the Internet Routing Table: 15164
RIPE Prefixes per ASN: 4.97
RIPE Region origin ASes announcing only one prefix: 7723
RIPE Region transit ASes present in the Internet Routing Table: 2423
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 24
Number of RIPE addresses announced to Internet: 451092437
Equivalent to 26 /8s, 227 /16s and 31 /24s
Percentage of available RIPE address space announced: 74.7
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: 30949
Total LACNIC prefixes after maximum aggregation: 7136
LACNIC Deaggregation factor: 4.34
Prefixes being announced from the LACNIC address blocks: 29669
Unique aggregates announced from the LACNIC address blocks: 15480
LACNIC Region origin ASes present in the Internet Routing Table: 1403
LACNIC Prefixes per ASN: 21.15
LACNIC Region origin ASes announcing only one prefix: 439
LACNIC Region transit ASes present in the Internet Routing Table: 249
Average LACNIC Region AS path length visible: 4.7
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 78535944
Equivalent to 4 /8s, 174 /16s and 93 /24s
Percentage of available LACNIC address space announced: 58.5
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: 7628
Total AfriNIC prefixes after maximum aggregation: 1906
AfriNIC Deaggregation factor: 4.00
Prefixes being announced from the AfriNIC address blocks: 5943
Unique aggregates announced from the AfriNIC address blocks: 1756
AfriNIC Region origin ASes present in the Internet Routing Table: 427
AfriNIC Prefixes per ASN: 13.92
AfriNIC Region origin ASes announcing only one prefix: 137
AfriNIC Region transit ASes present in the Internet Routing Table: 94
Average AfriNIC Region AS path length visible: 4.3
Max AfriNIC Region AS path length visible: 18
Number of AfriNIC addresses announced to Internet: 21705728
Equivalent to 1 /8s, 75 /16s and 52 /24s
Percentage of available AfriNIC address space announced: 43.1
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 1726 9453 516 Korea Telecom (KIX)
7545 1555 298 75 TPG Internet Pty Ltd
4755 1384 633 153 Videsh Sanchar Nigam Ltd. Aut
17974 1337 459 27 PT TELEKOMUNIKASI INDONESIA
24560 1040 312 174 Bharti Airtel Ltd.
9583 1039 75 486 Sify Limited
17488 994 158 109 Hathway IP Over Cable Interne
18101 907 116 137 Reliance Infocom Ltd Internet
4808 900 1619 250 CNCGROUP IP network: China169
9829 823 696 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 3733 3871 269 bellsouth.net, inc.
4323 2640 1093 400 Time Warner Telecom
19262 1835 4869 283 Verizon Global Networks
1785 1787 697 133 AppliedTheory Corporation
20115 1557 1534 638 Charter Communications
6478 1428 289 69 AT&T Worldnet Services
7018 1364 5678 879 AT&T WorldNet Services
2386 1307 570 924 AT&T Data Communications Serv
22773 1259 2864 75 Cox Communications, Inc.
11492 1256 234 73 Cable One
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
286 949 710 150 KPNQwest Backbone AS
9116 543 328 33 Goldenlines main autonomous s
6830 503 1763 309 UPC Distribution Services
3292 499 2010 386 TDC Tele Danmark
8866 435 133 23 Bulgarian Telecommunication C
9121 435 1690 29 TTnet Autonomous System
34984 422 92 191 Tellcom Iletisim Hizmetleri
9198 414 202 13 Kazakhtelecom Corporate Sales
8551 404 355 38 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 1357 2601 370 Uninet S.A. de C.V.
10620 1342 250 155 TVCABLE BOGOTA
28573 1209 932 79 Types of queries are: POCs, o
6503 1176 355 81 AVANTEL, S.A.
7303 829 441 105 Telecom Argentina Stet-France
14420 584 49 88 Types of queries are: POCs, o
22047 563 310 15 Types of queries are: POCs, o
3816 492 214 100 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 1165 445 10 TEDATA
24863 669 147 40 LINKdotNET AS number
36992 656 275 155 Etisalat MISR
3741 263 986 225 The Internet Solution
6713 203 199 12 Itissalat Al-MAGHRIB
24835 199 78 10 RAYA Telecom - Egypt
29571 199 19 11 Ci Telecom Autonomous system
2018 196 277 64 TENET-1
33776 184 12 14 Starcomms Nigeria Limited
16637 165 440 90 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 3733 3871 269 bellsouth.net, inc.
4323 2640 1093 400 Time Warner Telecom
19262 1835 4869 283 Verizon Global Networks
1785 1787 697 133 AppliedTheory Corporation
4766 1726 9453 516 Korea Telecom (KIX)
20115 1557 1534 638 Charter Communications
7545 1555 298 75 TPG Internet Pty Ltd
6478 1428 289 69 AT&T Worldnet Services
4755 1384 633 153 Videsh Sanchar Nigam Ltd. Aut
7018 1364 5678 879 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 2640 2240 Time Warner Telecom
1785 1787 1654 AppliedTheory Corporation
19262 1835 1552 Verizon Global Networks
7545 1555 1480 TPG Internet Pty Ltd
6478 1428 1359 AT&T Worldnet Services
17974 1337 1310 PT TELEKOMUNIKASI INDONESIA
4755 1384 1231 Videsh Sanchar Nigam Ltd. Aut
4766 1726 1210 Korea Telecom (KIX)
10620 1342 1187 TVCABLE BOGOTA
22773 1259 1184 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
46164 UNALLOCATED 4.23.88.0/24 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.23.89.0/24 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.23.92.0/23 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.23.94.0/23 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.38.0.0/21 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.38.8.0/21 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.43.50.0/24 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.43.51.0/24 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.67.96.0/21 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.67.104.0/21 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 /12:213
/13:430 /14:756 /15:1368 /16:11520 /17:5752 /18:9484
/19:19133 /20:24581 /21:24575 /22:32087 /23:31312 /24:179165
/25:373 /26:374 /27:200 /28:388 /29:314 /30:689
/31:40 /32:620
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2304 3733 bellsouth.net, inc.
4323 1427 2640 Time Warner Telecom
6478 1385 1428 AT&T Worldnet Services
10620 1234 1342 TVCABLE BOGOTA
11492 1213 1256 Cable One
18566 1072 1091 Covad Communications
7011 1070 1173 Citizens Utilities
1785 1059 1787 AppliedTheory Corporation
8452 1052 1165 TEDATA
6503 960 1176 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:130 2:28 4:17 5:1 8:319 12:2035
13:6 14:89 15:17 16:3 17:8 20:9
24:1449 27:486 32:144 33:6 34:2 36:1
37:1 38:716 40:101 41:2711 42:1 44:3
46:374 47:4 49:40 50:18 52:12 55:5
56:2 57:41 58:858 59:502 60:401 61:1105
62:1047 63:1941 64:3734 65:2322 66:4092 67:1792
68:1156 69:2916 70:753 71:391 72:1994 73:2
74:2334 75:299 76:328 77:865 78:746 79:445
80:1064 81:807 82:534 83:453 84:655 85:1064
86:500 87:739 88:415 89:1608 90:147 91:3341
92:460 93:1037 94:1143 95:706 96:406 97:246
98:714 99:33 101:3 107:2 108:77 109:819
110:468 111:675 112:310 113:320 114:485 115:644
116:920 117:668 118:608 119:1007 120:198 121:711
122:1572 123:1024 124:1228 125:1214 128:233 129:155
130:171 131:565 132:234 133:20 134:209 135:50
136:212 137:147 138:291 139:126 140:480 141:196
142:353 143:517 144:486 145:55 146:424 147:192
148:640 149:328 150:151 151:230 152:296 153:172
154:3 155:366 156:166 157:339 158:126 159:370
160:314 161:197 162:276 163:163 164:435 165:353
166:470 167:420 168:738 169:154 170:723 171:67
172:2 173:1145 174:471 175:261 176:1 178:627
180:726 182:541 183:241 184:205 186:886 187:769
188:880 189:1003 190:4279 192:5823 193:4835 194:3526
195:3049 196:1197 197:1 198:3547 199:3679 200:5533
201:1584 202:8412 203:8391 204:4051 205:2339 206:2584
207:2966 208:3869 209:3485 210:2553 211:1339 212:1942
213:1756 214:737 215:62 216:4820 217:1628 218:524
219:397 220:1192 221:445 222:341 223:81
End of report
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