Routing Table Report 00:00 GMT Wed 02 Feb, 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: 346406
Prefixes after maximum aggregation: 156521
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 169567
Total ASes present in the Internet Routing Table: 35760
Prefixes per ASN: 9.69
Origin-only ASes present in the Internet Routing Table: 30810
Origin ASes announcing only one prefix: 14911
Transit ASes present in the Internet Routing Table: 4950
Transit-only ASes present in the Internet Routing Table: 118
Average AS path length visible in the Internet Routing Table: 4.9
Max AS path length visible: 33
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 618
Unregistered ASNs in the Routing Table: 175
Number of 32-bit ASNs allocated by the RIRs: 1063
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: 207
Number of addresses announced to Internet: 2350494135
Equivalent to 140 /8s, 25 /16s and 177 /24s
Percentage of available address space announced: 63.4
Percentage of allocated address space announced: 65.5
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 88.0
Total number of prefixes smaller than registry allocations: 142180
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 83765
Total APNIC prefixes after maximum aggregation: 28024
APNIC Deaggregation factor: 2.99
Prefixes being announced from the APNIC address blocks: 80669
Unique aggregates announced from the APNIC address blocks: 35618
APNIC Region origin ASes present in the Internet Routing Table: 4305
APNIC Prefixes per ASN: 18.74
APNIC Region origin ASes announcing only one prefix: 1227
APNIC Region transit ASes present in the Internet Routing Table: 679
Average APNIC Region AS path length visible: 5.5
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 586868418
Equivalent to 34 /8s, 250 /16s and 230 /24s
Percentage of available APNIC address space announced: 79.5
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: 141332
Total ARIN prefixes after maximum aggregation: 72931
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 111882
Unique aggregates announced from the ARIN address blocks: 44413
ARIN Region origin ASes present in the Internet Routing Table: 14186
ARIN Prefixes per ASN: 7.89
ARIN Region origin ASes announcing only one prefix: 5410
ARIN Region transit ASes present in the Internet Routing Table: 1479
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 27
Number of ARIN addresses announced to Internet: 751767425
Equivalent to 44 /8s, 207 /16s and 15 /24s
Percentage of available ARIN address space announced: 63.1
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: 84802
Total RIPE prefixes after maximum aggregation: 46556
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 77328
Unique aggregates announced from the RIPE address blocks: 48522
RIPE Region origin ASes present in the Internet Routing Table: 15275
RIPE Prefixes per ASN: 5.06
RIPE Region origin ASes announcing only one prefix: 7720
RIPE Region transit ASes present in the Internet Routing Table: 2388
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 457613129
Equivalent to 27 /8s, 70 /16s and 159 /24s
Percentage of available RIPE address space announced: 75.8
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, 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, 193/8, 194/8, 195/8, 212/8, 213/8,
217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 31640
Total LACNIC prefixes after maximum aggregation: 7231
LACNIC Deaggregation factor: 4.38
Prefixes being announced from the LACNIC address blocks: 30379
Unique aggregates announced from the LACNIC address blocks: 15812
LACNIC Region origin ASes present in the Internet Routing Table: 1421
LACNIC Prefixes per ASN: 21.38
LACNIC Region origin ASes announcing only one prefix: 433
LACNIC Region transit ASes present in the Internet Routing Table: 251
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 80294284
Equivalent to 4 /8s, 201 /16s and 49 /24s
Percentage of available LACNIC address space announced: 59.8
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: 4612
Total AfriNIC prefixes after maximum aggregation: 1660
AfriNIC Deaggregation factor: 2.78
Prefixes being announced from the AfriNIC address blocks: 3431
Unique aggregates announced from the AfriNIC address blocks: 1590
AfriNIC Region origin ASes present in the Internet Routing Table: 394
AfriNIC Prefixes per ASN: 8.71
AfriNIC Region origin ASes announcing only one prefix: 121
AfriNIC Region transit ASes present in the Internet Routing Table: 89
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 33
Number of AfriNIC addresses announced to Internet: 18204672
Equivalent to 1 /8s, 21 /16s and 200 /24s
Percentage of available AfriNIC address space announced: 36.2
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 1759 9484 515 Korea Telecom (KIX)
7545 1596 300 82 TPG Internet Pty Ltd
4755 1406 376 158 Videsh Sanchar Nigam Ltd. Aut
17974 1391 467 27 PT TELEKOMUNIKASI INDONESIA
24560 1095 317 180 Bharti Airtel Ltd.
9583 1043 76 490 Sify Limited
17488 965 162 103 Hathway IP Over Cable Interne
18101 922 116 140 Reliance Infocom Ltd Internet
4808 902 1939 253 CNCGROUP IP network: China169
9829 896 762 41 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 3708 3855 265 bellsouth.net, inc.
4323 2627 1109 403 Time Warner Telecom
19262 1841 4927 285 Verizon Global Networks
1785 1787 697 132 AppliedTheory Corporation
20115 1572 1536 642 Charter Communications
6478 1472 290 112 AT&T Worldnet Services
7018 1359 6682 885 AT&T WorldNet Services
2386 1296 554 934 AT&T Data Communications Serv
22773 1277 2865 78 Cox Communications, Inc.
11492 1262 235 79 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
286 977 714 157 KPNQwest Backbone AS
9116 523 328 32 Goldenlines main autonomous s
6830 512 1764 319 UPC Distribution Services
3292 506 2011 391 TDC Tele Danmark
9198 465 266 14 Kazakhtelecom Corporate Sales
34984 457 97 137 Tellcom Iletisim Hizmetleri
8866 440 133 23 Bulgarian Telecommunication C
12479 415 577 6 Uni2 Autonomous System
8551 405 355 38 Bezeq International
3320 403 7619 352 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 1358 252 163 TVCABLE BOGOTA
8151 1334 2618 359 Uninet S.A. de C.V.
28573 1246 961 82 Types of queries are: POCs, o
6503 1151 355 78 AVANTEL, S.A.
7303 888 461 115 Telecom Argentina Stet-France
14420 622 56 91 Types of queries are: POCs, o
22047 566 310 15 Types of queries are: POCs, o
3816 540 220 98 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
27947 461 53 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
3741 264 987 226 The Internet Solution
6713 203 199 12 Itissalat Al-MAGHRIB
33776 194 12 15 Starcomms Nigeria Limited
29571 193 17 11 Ci Telecom Autonomous system
16637 156 439 86 Johnnic e-Ventures
36874 139 24 6 Cybersmart
29975 131 490 17 Vodacom
37061 108 9 2 One Communications Ltd
15706 106 16 5 Sudatel Internet Exchange Aut
37054 85 5 21 Data Telecom Service
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 3708 3855 265 bellsouth.net, inc.
4323 2627 1109 403 Time Warner Telecom
19262 1841 4927 285 Verizon Global Networks
1785 1787 697 132 AppliedTheory Corporation
4766 1759 9484 515 Korea Telecom (KIX)
7545 1596 300 82 TPG Internet Pty Ltd
20115 1572 1536 642 Charter Communications
6478 1472 290 112 AT&T Worldnet Services
4755 1406 376 158 Videsh Sanchar Nigam Ltd. Aut
17974 1391 467 27 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
4323 2627 2224 Time Warner Telecom
1785 1787 1655 AppliedTheory Corporation
19262 1841 1556 Verizon Global Networks
7545 1596 1514 TPG Internet Pty Ltd
17974 1391 1364 PT TELEKOMUNIKASI INDONESIA
6478 1472 1360 AT&T Worldnet Services
4755 1406 1248 Videsh Sanchar Nigam Ltd. Aut
4766 1759 1244 Korea Telecom (KIX)
22773 1277 1199 Cox Communications, Inc.
10620 1358 1195 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 4323 Time Warner Telecom
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
10.29.245.20/32 286 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
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
41.78.192.0/22 30999 Emtel is GSM, 3G and ISP in M
41.222.79.0/24 36938 >>UNKNOWN<<
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 /8:19 /9:10 /10:26 /11:72 /12:214
/13:440 /14:772 /15:1386 /16:11573 /17:5830 /18:9560
/19:19244 /20:24913 /21:24929 /22:32837 /23:31545 /24:179933
/25:379 /26:355 /27:205 /28:379 /29:324 /30:753
/31:45 /32:663
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2287 3708 bellsouth.net, inc.
6478 1426 1472 AT&T Worldnet Services
4323 1415 2627 Time Warner Telecom
10620 1249 1358 TVCABLE BOGOTA
11492 1218 1262 Cable One
18566 1106 1125 Covad Communications
7011 1065 1168 Citizens Utilities
1785 1058 1787 AppliedTheory Corporation
19262 954 1841 Verizon Global Networks
6503 935 1151 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:167 2:47 4:17 5:1 8:333 12:2029
13:1 14:384 15:15 16:3 17:8 20:9
23:1 24:1489 27:568 32:128 33:5 34:2
37:1 38:693 40:101 41:1637 44:3 46:541
47:5 49:140 50:82 52:12 55:5 56:2
57:40 58:889 59:485 60:391 61:1117 62:876
63:1924 64:3766 65:2336 66:4095 67:1786 68:1160
69:2979 70:759 71:399 72:2036 73:3 74:2361
75:305 76:336 77:854 78:700 79:452 80:1032
81:798 82:523 83:484 84:478 85:1077 86:530
87:759 88:362 89:1621 90:159 91:3460 92:497
93:1049 94:1203 95:798 96:406 97:249 98:763
99:33 101:23 107:3 108:81 109:880 110:470
111:695 112:311 113:356 114:494 115:638 116:925
117:675 118:660 119:1027 120:244 121:704 122:1611
123:1053 124:1290 125:1217 128:247 129:154 130:172
131:568 132:110 133:20 134:219 135:49 136:216
137:147 138:294 139:133 140:489 141:198 142:366
143:381 144:486 145:51 146:426 147:205 148:627
149:274 150:151 151:231 152:304 153:177 154:3
155:347 156:171 157:342 158:128 159:378 160:314
161:205 162:278 163:118 164:486 165:357 166:481
167:422 168:736 169:155 170:748 171:66 172:1
173:1274 174:523 175:309 176:1 177:4 178:777
180:776 182:342 183:248 184:240 186:977 187:788
188:913 189:1028 190:4435 192:5820 193:4813 194:3530
195:3064 196:1017 197:3 198:3593 199:3748 200:5559
201:1582 202:8415 203:8460 204:4099 205:2349 206:2640
207:3059 208:3877 209:3501 210:2648 211:1332 212:1921
213:1656 214:751 215:62 216:4833 217:1425 218:529
219:374 220:1204 221:451 222:343 223:93
End of report
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