Routing Table Report 00:00 GMT Mon 31 Jan, 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: 346082
Prefixes after maximum aggregation: 156329
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 169294
Total ASes present in the Internet Routing Table: 35739
Prefixes per ASN: 9.68
Origin-only ASes present in the Internet Routing Table: 30814
Origin ASes announcing only one prefix: 14919
Transit ASes present in the Internet Routing Table: 4925
Transit-only ASes present in the Internet Routing Table: 110
Average AS path length visible in the Internet Routing Table: 5.0
Max AS path length visible: 33
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 397
Unregistered ASNs in the Routing Table: 149
Number of 32-bit ASNs allocated by the RIRs: 1063
Prefixes from 32-bit ASNs in the Routing Table: 7
Special use prefixes present in the Routing Table: 75
Prefixes being announced from unallocated address space: 214
Number of addresses announced to Internet: 2350135423
Equivalent to 140 /8s, 20 /16s and 56 /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: 141981
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 83696
Total APNIC prefixes after maximum aggregation: 28013
APNIC Deaggregation factor: 2.99
Prefixes being announced from the APNIC address blocks: 80603
Unique aggregates announced from the APNIC address blocks: 35544
APNIC Region origin ASes present in the Internet Routing Table: 4299
APNIC Prefixes per ASN: 18.75
APNIC Region origin ASes announcing only one prefix: 1228
APNIC Region transit ASes present in the Internet Routing Table: 680
Average APNIC Region AS path length visible: 5.6
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 586762946
Equivalent to 34 /8s, 249 /16s and 74 /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: 141178
Total ARIN prefixes after maximum aggregation: 72741
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 111827
Unique aggregates announced from the ARIN address blocks: 44435
ARIN Region origin ASes present in the Internet Routing Table: 14186
ARIN Prefixes per ASN: 7.88
ARIN Region origin ASes announcing only one prefix: 5411
ARIN Region transit ASes present in the Internet Routing Table: 1470
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 27
Number of ARIN addresses announced to Internet: 751689097
Equivalent to 44 /8s, 205 /16s and 221 /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: 84543
Total RIPE prefixes after maximum aggregation: 46494
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 77079
Unique aggregates announced from the RIPE address blocks: 48299
RIPE Region origin ASes present in the Internet Routing Table: 15254
RIPE Prefixes per ASN: 5.05
RIPE Region origin ASes announcing only one prefix: 7726
RIPE Region transit ASes present in the Internet Routing Table: 2377
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 457192585
Equivalent to 27 /8s, 64 /16s and 52 /24s
Percentage of available RIPE address space announced: 75.7
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, 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: 31687
Total LACNIC prefixes after maximum aggregation: 7276
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 30434
Unique aggregates announced from the LACNIC address blocks: 15795
LACNIC Region origin ASes present in the Internet Routing Table: 1424
LACNIC Prefixes per ASN: 21.37
LACNIC Region origin ASes announcing only one prefix: 430
LACNIC Region transit ASes present in the Internet Routing Table: 254
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 23
Number of LACNIC addresses announced to Internet: 80248076
Equivalent to 4 /8s, 200 /16s and 125 /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: 4720
Total AfriNIC prefixes after maximum aggregation: 1682
AfriNIC Deaggregation factor: 2.81
Prefixes being announced from the AfriNIC address blocks: 3521
Unique aggregates announced from the AfriNIC address blocks: 1596
AfriNIC Region origin ASes present in the Internet Routing Table: 405
AfriNIC Prefixes per ASN: 8.69
AfriNIC Region origin ASes announcing only one prefix: 124
AfriNIC Region transit ASes present in the Internet Routing Table: 88
Average AfriNIC Region AS path length visible: 5.0
Max AfriNIC Region AS path length visible: 33
Number of AfriNIC addresses announced to Internet: 18370048
Equivalent to 1 /8s, 24 /16s and 78 /24s
Percentage of available AfriNIC address space announced: 36.5
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 1760 9484 516 Korea Telecom (KIX)
7545 1586 299 81 TPG Internet Pty Ltd
4755 1401 376 159 Videsh Sanchar Nigam Ltd. Aut
17974 1390 467 27 PT TELEKOMUNIKASI INDONESIA
24560 1094 317 180 Bharti Airtel Ltd.
9583 1044 76 487 Sify Limited
17488 965 162 103 Hathway IP Over Cable Interne
18101 922 116 140 Reliance Infocom Ltd Internet
4808 902 1935 254 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 3709 3855 265 bellsouth.net, inc.
4323 2631 1109 403 Time Warner Telecom
19262 1841 4927 285 Verizon Global Networks
1785 1787 697 133 AppliedTheory Corporation
20115 1571 1535 642 Charter Communications
6478 1483 292 54 AT&T Worldnet Services
7018 1364 6682 882 AT&T WorldNet Services
2386 1298 554 934 AT&T Data Communications Serv
22773 1274 2865 78 Cox Communications, Inc.
11492 1271 235 74 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
286 976 710 153 KPNQwest Backbone AS
9116 522 328 32 Goldenlines main autonomous s
6830 515 1764 319 UPC Distribution Services
3292 506 2011 391 TDC Tele Danmark
9198 465 266 14 Kazakhtelecom Corporate Sales
34984 458 97 137 Tellcom Iletisim Hizmetleri
8866 439 133 23 Bulgarian Telecommunication C
12479 412 577 6 Uni2 Autonomous System
8551 404 355 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 1357 252 165 TVCABLE BOGOTA
8151 1331 2634 359 Uninet S.A. de C.V.
28573 1245 961 82 Types of queries are: POCs, o
6503 1150 355 78 AVANTEL, S.A.
7303 886 461 117 Telecom Argentina Stet-France
14420 614 55 90 Types of queries are: POCs, o
22047 566 310 15 Types of queries are: POCs, o
3816 510 220 95 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
27947 459 53 52 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 131 475 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 3709 3855 265 bellsouth.net, inc.
4323 2631 1109 403 Time Warner Telecom
19262 1841 4927 285 Verizon Global Networks
1785 1787 697 133 AppliedTheory Corporation
4766 1760 9484 516 Korea Telecom (KIX)
7545 1586 299 81 TPG Internet Pty Ltd
20115 1571 1535 642 Charter Communications
6478 1483 292 54 AT&T Worldnet Services
4755 1401 376 159 Videsh Sanchar Nigam Ltd. Aut
17974 1390 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 2631 2228 Time Warner Telecom
1785 1787 1654 AppliedTheory Corporation
19262 1841 1556 Verizon Global Networks
7545 1586 1505 TPG Internet Pty Ltd
6478 1483 1429 AT&T Worldnet Services
17974 1390 1363 PT TELEKOMUNIKASI INDONESIA
4766 1760 1244 Korea Telecom (KIX)
4755 1401 1242 Videsh Sanchar Nigam Ltd. Aut
11492 1271 1197 Cable One
22773 1274 1196 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 1239 Sprint
26973 UNALLOCATED 12.39.154.0/23 1239 Sprint
26973 UNALLOCATED 12.39.155.0/24 1239 Sprint
26973 UNALLOCATED 12.39.159.0/24 1239 Sprint
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 /8:20 /9:10 /10:26 /11:72 /12:215
/13:440 /14:771 /15:1384 /16:11575 /17:5826 /18:9551
/19:19240 /20:24886 /21:24916 /22:32729 /23:31600 /24:179745
/25:372 /26:348 /27:202 /28:377 /29:313 /30:754
/31:47 /32:663
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2288 3709 bellsouth.net, inc.
6478 1437 1483 AT&T Worldnet Services
4323 1419 2631 Time Warner Telecom
10620 1248 1357 TVCABLE BOGOTA
11492 1227 1271 Cable One
18566 1106 1125 Covad Communications
7011 1065 1168 Citizens Utilities
1785 1059 1787 AppliedTheory Corporation
19262 954 1841 Verizon Global Networks
6503 934 1150 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 2:50 4:17 5:1 8:333 12:2033
13:1 14:382 15:15 16:3 17:8 20:9
23:1 24:1494 27:558 32:128 33:5 34:2
36:1 37:1 38:693 40:101 41:1633 42:1
44:3 46:519 47:5 49:142 50:76 52:12
55:5 56:2 57:41 58:867 59:485 60:391
61:1115 62:872 63:1924 64:3782 65:2336 66:4095
67:1791 68:1161 69:2980 70:759 71:397 72:2035
73:3 74:2365 75:305 76:338 77:864 78:697
79:453 80:1021 81:779 82:523 83:480 84:474
85:1076 86:514 87:757 88:364 89:1620 90:159
91:3450 92:495 93:1048 94:1201 95:792 96:422
97:249 98:762 99:33 101:24 107:3 108:81
109:843 110:470 111:694 112:313 113:352 114:495
115:634 116:892 117:673 118:652 119:1026 120:244
121:705 122:1607 123:1051 124:1290 125:1213 128:248
129:159 130:174 131:568 132:110 133:20 134:220
135:49 136:216 137:147 138:294 139:133 140:489
141:198 142:365 143:374 144:428 145:51 146:426
147:205 148:627 149:273 150:153 151:231 152:302
153:175 154:3 155:346 156:174 157:342 158:128
159:377 160:314 161:205 162:277 163:118 164:484
165:357 166:481 167:423 168:738 169:155 170:747
171:66 172:1 173:1281 174:521 175:313 176:1
177:4 178:774 180:775 182:405 183:246 184:239
186:964 187:797 188:912 189:1023 190:4442 192:5823
193:4815 194:3521 195:3067 196:1034 197:3 198:3568
199:3754 200:5585 201:1579 202:8415 203:8469 204:4104
205:2332 206:2598 207:2965 208:3886 209:3498 210:2636
211:1331 212:1920 213:1676 214:749 215:62 216:4855
217:1499 218:530 219:375 220:1205 221:450 222:343
223:92
End of report
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