BGP Routing: 2011-01-30

The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Saturday, February 5, 2011

[bgp-stats] Routing Table Report - RouteViews-3 view

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sun 06 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: 350245
Prefixes after maximum aggregation: 157147
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 170505
Total ASes present in the Internet Routing Table: 35807
Prefixes per ASN: 9.78
Origin-only ASes present in the Internet Routing Table: 30910
Origin ASes announcing only one prefix: 14910
Transit ASes present in the Internet Routing Table: 4897
Transit-only ASes present in the Internet Routing Table: 107
Average AS path length visible in the Internet Routing Table: 3.8
Max AS path length visible: 26
Max AS path prepend of ASN (22394) 20
Prefixes from unregistered ASNs in the Routing Table: 485
Unregistered ASNs in the Routing Table: 158
Number of 32-bit ASNs allocated by the RIRs: 1088
Prefixes from 32-bit ASNs in the Routing Table: 1
Special use prefixes present in the Routing Table: 73
Prefixes being announced from unallocated address space: 202
Number of addresses announced to Internet: 2382460607
Equivalent to 142 /8s, 1 /16s and 118 /24s
Percentage of available address space announced: 64.3
Percentage of allocated address space announced: 64.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 88.1
Total number of prefixes smaller than registry allocations: 144815

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 83856
Total APNIC prefixes after maximum aggregation: 28105
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 80683
Unique aggregates announced from the APNIC address blocks: 35647
APNIC Region origin ASes present in the Internet Routing Table: 4303
APNIC Prefixes per ASN: 18.75
APNIC Region origin ASes announcing only one prefix: 1225
APNIC Region transit ASes present in the Internet Routing Table: 674
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 589019330
Equivalent to 35 /8s, 27 /16s and 184 /24s
Percentage of available APNIC address space announced: 74.7

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, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 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: 141776
Total ARIN prefixes after maximum aggregation: 73090
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 112303
Unique aggregates announced from the ARIN address blocks: 44593
ARIN Region origin ASes present in the Internet Routing Table: 14181
ARIN Prefixes per ASN: 7.92
ARIN Region origin ASes announcing only one prefix: 5388
ARIN Region transit ASes present in the Internet Routing Table: 1444
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 25
Number of ARIN addresses announced to Internet: 752096649
Equivalent to 44 /8s, 212 /16s and 21 /24s
Percentage of available ARIN address space announced: 62.3

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,
104/8, 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: 85183
Total RIPE prefixes after maximum aggregation: 46670
RIPE Deaggregation factor: 1.83
Prefixes being announced from the RIPE address blocks: 77694
Unique aggregates announced from the RIPE address blocks: 48689
RIPE Region origin ASes present in the Internet Routing Table: 15298
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7728
RIPE Region transit ASes present in the Internet Routing Table: 2365
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 457443913
Equivalent to 27 /8s, 68 /16s and 10 /24s
Percentage of available RIPE address space announced: 73.7

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, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 31672
Total LACNIC prefixes after maximum aggregation: 7317
LACNIC Deaggregation factor: 4.33
Prefixes being announced from the LACNIC address blocks: 30430
Unique aggregates announced from the LACNIC address blocks: 15884
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: 437
LACNIC Region transit ASes present in the Internet Routing Table: 256
Average LACNIC Region AS path length visible: 4.3
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 80402316
Equivalent to 4 /8s, 202 /16s and 215 /24s
Percentage of available LACNIC address space announced: 53.2

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 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: 7481
Total AfriNIC prefixes after maximum aggregation: 1853
AfriNIC Deaggregation factor: 4.04
Prefixes being announced from the AfriNIC address blocks: 5893
Unique aggregates announced from the AfriNIC address blocks: 1790
AfriNIC Region origin ASes present in the Internet Routing Table: 434
AfriNIC Prefixes per ASN: 13.58
AfriNIC Region origin ASes announcing only one prefix: 131
AfriNIC Region transit ASes present in the Internet Routing Table: 95
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 18
Number of AfriNIC addresses announced to Internet: 21818624
Equivalent to 1 /8s, 76 /16s and 237 /24s
Percentage of available AfriNIC address space announced: 32.5

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 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 1619 301 84 TPG Internet Pty Ltd
4755 1406 376 158 Videsh Sanchar Nigam Ltd. Aut
17974 1391 467 27 PT TELEKOMUNIKASI INDONESIA
24560 1099 318 182 Bharti Airtel Ltd.
9583 1044 76 487 Sify Limited
17488 967 162 104 Hathway IP Over Cable Interne
4808 948 2056 275 CNCGROUP IP network: China169
18101 926 117 142 Reliance Infocom Ltd Internet
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 3704 3855 265 bellsouth.net, inc.
4323 2623 1125 403 Time Warner Telecom
19262 1842 4935 283 Verizon Global Networks
1785 1788 697 132 AppliedTheory Corporation
20115 1572 1536 642 Charter Communications
6478 1482 291 81 AT&T Worldnet Services
7018 1357 6698 876 AT&T WorldNet Services
2386 1295 554 933 AT&T Data Communications Serv
22773 1277 2864 77 Cox Communications, Inc.
11492 1264 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
286 981 713 158 KPNQwest Backbone AS
9116 545 328 32 Goldenlines main autonomous s
6830 516 1764 319 UPC Distribution Services
3292 505 2011 390 TDC Tele Danmark
9198 464 266 14 Kazakhtelecom Corporate Sales
34984 458 97 137 Tellcom Iletisim Hizmetleri
8866 441 133 23 Bulgarian Telecommunication C
8551 405 355 38 Bezeq International
3320 404 7617 352 Deutsche Telekom AG
20940 399 91 307 Akamai Technologies European

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 1374 255 164 TVCABLE BOGOTA
8151 1339 2631 361 Uninet S.A. de C.V.
28573 1243 961 82 Types of queries are: POCs, o
6503 1187 355 79 AVANTEL, S.A.
7303 888 461 116 Telecom Argentina Stet-France
14420 625 56 93 Types of queries are: POCs, o
22047 548 310 15 Types of queries are: POCs, o
3816 502 220 95 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
27947 464 53 49 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
8452 815 445 11 TEDATA
24863 762 147 40 LINKdotNET AS number
36992 635 329 19 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 217 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
33776 194 12 15 Starcomms Nigeria Limited
29571 192 17 11 Ci Telecom Autonomous system
16637 156 439 86 Johnnic e-Ventures
29975 132 490 17 Vodacom

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 3704 3855 265 bellsouth.net, inc.
4323 2623 1125 403 Time Warner Telecom
19262 1842 4935 283 Verizon Global Networks
1785 1788 697 132 AppliedTheory Corporation
4766 1759 9484 515 Korea Telecom (KIX)
7545 1619 301 84 TPG Internet Pty Ltd
20115 1572 1536 642 Charter Communications
6478 1482 291 81 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 2623 2220 Time Warner Telecom
1785 1788 1656 AppliedTheory Corporation
19262 1842 1559 Verizon Global Networks
7545 1619 1535 TPG Internet Pty Ltd
6478 1482 1401 AT&T Worldnet Services
17974 1391 1364 PT TELEKOMUNIKASI INDONESIA
4755 1406 1248 Videsh Sanchar Nigam Ltd. Aut
4766 1759 1244 Korea Telecom (KIX)
10620 1374 1210 TVCABLE BOGOTA
22773 1277 1200 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
10.29.245.20/32 286 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
41.78.228.0/22 5713 Telkom SA Ltd
41.222.79.0/24 36938 >>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 /9:11 /10:26 /11:74 /12:221
/13:444 /14:777 /15:1398 /16:11654 /17:5869 /18:9611
/19:19316 /20:24965 /21:25072 /22:33339 /23:32084 /24:182219
/25:377 /26:360 /27:211 /28:379 /29:328 /30:766
/31:50 /32:674

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
6389 2283 3704 bellsouth.net, inc.
6478 1436 1482 AT&T Worldnet Services
4323 1410 2623 Time Warner Telecom
10620 1265 1374 TVCABLE BOGOTA
11492 1221 1264 Cable One
18566 1160 1182 Covad Communications
7011 1062 1163 Citizens Utilities
1785 1054 1788 AppliedTheory Corporation
6503 964 1187 AVANTEL, S.A.
19262 954 1842 Verizon Global Networks

Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:169 2:50 4:17 5:1 8:335 12:2030
13:1 14:396 15:15 16:3 17:8 20:9
21:2 23:1 24:1491 27:572 32:128 33:5
34:2 37:1 38:695 40:101 41:2337 44:3
46:549 47:5 49:143 50:83 52:12 55:5
56:2 57:42 58:866 59:485 60:391 61:1118
62:1084 63:1933 64:3770 65:2363 66:4149 67:1797
68:1160 69:2986 70:758 71:402 72:2041 73:3
74:2376 75:304 76:351 77:875 78:712 79:454
80:1054 81:865 82:546 83:482 84:663 85:1077
86:536 87:773 88:361 89:1632 90:156 91:3472
92:496 93:1050 94:1221 95:811 96:416 97:250
98:790 99:33 101:23 107:3 108:82 109:909
110:471 111:693 112:312 113:354 114:496 115:641
116:937 117:675 118:649 119:1016 120:243 121:700
122:1613 123:1055 124:1291 125:1217 128:265 129:154
130:172 131:558 132:110 133:20 134:219 135:49
136:216 137:146 138:292 139:133 140:490 141:197
142:363 143:377 144:481 145:51 146:428 147:204
148:628 149:274 150:152 151:231 152:306 153:177
154:3 155:347 156:175 157:343 158:128 159:379
160:315 161:205 162:278 163:160 164:486 165:356
166:482 167:420 168:739 169:155 170:751 171:66
172:2 173:1287 174:525 175:314 176:1 177:12
178:788 180:776 182:344 183:250 184:240 186:981
187:788 188:914 189:1054 190:4386 192:5824 193:4832
194:3559 195:3091 196:1181 197:3 198:3588 199:3763
200:5560 201:1591 202:8417 203:8458 204:4104 205:2345
206:2649 207:3085 208:3901 209:3501 210:2650 211:1333
212:1929 213:1777 214:758 215:62 216:4834 217:1624
218:532 219:377 220:1205 221:451 222:343 223:94

End of report
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[bgp-stats] Routing Table Report - London view

* BGP Routing Table Analysis Reports *
Routing Table Report 08:00 +10GMT Sun 06 Feb, 2011

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/

Analysis Summary
----------------

BGP routing table entries examined: 69504
Prefixes after maximum aggregation: 35929
Deaggregation factor: 1.93
Unique aggregates announced to Internet: 44950
Total ASes present in the Internet Routing Table: 11059
Prefixes per ASN: 6.28
Origin-only ASes present in the Internet Routing Table: 9162
Origin ASes announcing only one prefix: 5235
Transit ASes present in the Internet Routing Table: 1897
Transit-only ASes present in the Internet Routing Table: 140
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (43120) 18
Prefixes from unregistered ASNs in the Routing Table: 62
Unregistered ASNs in the Routing Table: 22
Number of 32-bit ASNs allocated by the RIRs: 1088
Prefixes from 32-bit ASNs in the Routing Table: 567
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 27
Number of addresses announced to Internet: 351955971
Equivalent to 20 /8s, 250 /16s and 108 /24s
Percentage of available address space announced: 9.5
Percentage of allocated address space announced: 9.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 88.1
Total number of prefixes smaller than registry allocations: 25316

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 22875
Total APNIC prefixes after maximum aggregation: 9273
APNIC Deaggregation factor: 2.47
Prefixes being announced from the APNIC address blocks: 22752
Unique aggregates announced from the APNIC address blocks: 12550
APNIC Region origin ASes present in the Internet Routing Table: 1818
APNIC Prefixes per ASN: 12.51
APNIC Region origin ASes announcing only one prefix: 590
APNIC Region transit ASes present in the Internet Routing Table: 330
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 140813826
Equivalent to 8 /8s, 100 /16s and 166 /24s
Percentage of available APNIC address space announced: 17.9

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes: 8137
Total ARIN prefixes after maximum aggregation: 4677
ARIN Deaggregation factor: 1.74
Prefixes being announced from the ARIN address blocks: 7098
Unique aggregates announced from the ARIN address blocks: 4554
ARIN Region origin ASes present in the Internet Routing Table: 1224
ARIN Prefixes per ASN: 5.80
ARIN Region origin ASes announcing only one prefix: 557
ARIN Region transit ASes present in the Internet Routing Table: 190
Average ARIN Region AS path length visible: 2.9
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 29065985
Equivalent to 1 /8s, 187 /16s and 131 /24s
Percentage of available ARIN address space announced: 2.4

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes: 35144
Total RIPE prefixes after maximum aggregation: 20062
RIPE Deaggregation factor: 1.75
Prefixes being announced from the RIPE address blocks: 33227
Unique aggregates announced from the RIPE address blocks: 23520
RIPE Region origin ASes present in the Internet Routing Table: 7647
RIPE Prefixes per ASN: 4.35
RIPE Region origin ASes announcing only one prefix: 3999
RIPE Region transit ASes present in the Internet Routing Table: 1277
Average RIPE Region AS path length visible: 3.2
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 108966912
Equivalent to 6 /8s, 126 /16s and 180 /24s
Percentage of available RIPE address space announced: 17.6

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 294
Total LACNIC prefixes after maximum aggregation: 191
LACNIC Deaggregation factor: 1.54
Prefixes being announced from the LACNIC address blocks: 257
Unique aggregates announced from the LACNIC address blocks: 169
LACNIC Region origin ASes present in the Internet Routing Table: 48
LACNIC Prefixes per ASN: 5.35
LACNIC Region origin ASes announcing only one prefix: 20
LACNIC Region transit ASes present in the Internet Routing Table: 10
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 12
Number of LACNIC addresses announced to Internet: 1455104
Equivalent to 0 /8s, 22 /16s and 52 /24s
Percentage of available LACNIC address space announced: 1.0

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 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: 1991
Total AfriNIC prefixes after maximum aggregation: 993
AfriNIC Deaggregation factor: 2.01
Prefixes being announced from the AfriNIC address blocks: 1043
Unique aggregates announced from the AfriNIC address blocks: 686
AfriNIC Region origin ASes present in the Internet Routing Table: 177
AfriNIC Prefixes per ASN: 5.89
AfriNIC Region origin ASes announcing only one prefix: 69
AfriNIC Region transit ASes present in the Internet Routing Table: 29
Average AfriNIC Region AS path length visible: 2.6
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC addresses announced to Internet: 7453952
Equivalent to 0 /8s, 113 /16s and 189 /24s
Percentage of available AfriNIC address space announced: 11.1

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
18101 926 117 142 Reliance Infocom Ltd Internet
17676 648 10843 70 Softbank BB Corp.
4780 644 461 75 Digital United Inc.
9498 637 241 53 BHARTI Airtel Ltd.
9583 626 46 425 Sify Limited
17803 561 177 140 BSES TeleCom Limited
7545 491 281 48 TPG Internet Pty Ltd
9304 282 366 29 Hutchison Telecom (HK)
17451 230 15 11 BIZNET ISP
18049 218 23 15 TAIWAN Network Information Ce

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6517 333 50 257 Yipes Communications, Inc.
2711 320 122 31 Rock Hill Telephone Company
15105 269 32 12 Network Telephone Corporation
15003 208 37 86 TEGRIS Corporation
35908 199 112 13 VPLS Inc.
26640 198 12 95 Oso Grande Technologies, Inc.
25973 180 57 46 Mzima Networks, Inc.
33475 167 10 10 RockSolid Network, Inc.
18779 145 14 94 Guru.com
22646 139 14 30 Hargray Communications

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
9116 541 328 31 Goldenlines main autonomous s
9198 464 266 14 Kazakhtelecom Data Network Ad
8551 384 353 29 Bezeq International
30890 375 85 159 Evolva Telecom
29049 326 26 3 AzerSat LLC.
31148 325 17 93 FreeNet ISP
8708 240 486 215 Romania Data Systems S.A.
9050 228 378 180 RTD-ROMTELECOM Autonomous Sys
35002 214 50 99 HERTZA Computers
3303 201 434 179 Swisscom Ltd

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
1916 50 192 24 Fundacao de Amparo a Pesquisa
28571 43 62 41 Universidade de Sao Paulo - U
13878 26 9 8 Diginet
1251 18 84 18 Fundacao de Amparo a Pesquisa
2715 18 113 14 Fundacao de Amparo a Pesquisa
2716 16 27 8 Fundacao de Amparo a Pesquisa
19611 16 1 1 SAV - Unisinos
27924 9 1 1 Three Sixty Communications
27822 8 5 8 Emerging Markets Communicatio
10715 7 18 3 RCT-SC - Rede Catarinense de

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
3741 262 987 226 The Internet Solution
24863 233 145 32 LINKdotNET AS number
16637 148 439 86 MTN Network Solutions
29975 132 490 17 Vodacom
2018 76 277 64 Tertiary Education Network
24835 76 31 15 RAYA Telecom - Egypt
12258 74 16 30 Vodacom Internet Company
5713 65 149 52 Telkom SA Ltd
8452 60 11 42 TEDATA
8094 50 16 3 PUKNET

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
18101 926 117 142 Reliance Infocom Ltd Internet
17676 648 10843 70 Softbank BB Corp.
4780 644 461 75 Digital United Inc.
9498 637 241 53 BHARTI Airtel Ltd.
9583 626 46 425 Sify Limited
23456 567 124 364 32-bit ASN transition
17803 561 177 140 BSES TeleCom Limited
9116 541 328 31 Goldenlines main autonomous s
7545 491 281 48 TPG Internet Pty Ltd
9198 464 266 14 Kazakhtelecom Data Network Ad

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
9498 637 584 BHARTI Airtel Ltd.
17676 648 578 Softbank BB Corp.
4780 644 569 Digital United Inc.
9116 541 510 Goldenlines main autonomous s
9198 464 450 Kazakhtelecom Data Network Ad
7545 491 443 TPG Internet Pty Ltd
17803 561 421 BSES TeleCom Limited
8551 384 355 Bezeq International
29049 326 323 AzerSat LLC.
2711 320 289 Rock Hill Telephone Company

Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
65333 PRIVATE 10.0.0.0/8 0 *
55636 UNALLOCATED 27.116.60.0/24 55554 True International G
55636 UNALLOCATED 27.116.61.0/24 45348 Regency Square, Comp
55636 UNALLOCATED 27.116.62.0/24 55554 True International G
55636 UNALLOCATED 27.116.63.0/24 55554 True International G
56326 UNALLOCATED 46.174.248.0/21 33871 Norilsk-Telecom Ltd.
38976 UNALLOCATED 62.192.224.0/19 20632 PETERSTAR Autonomous
38976 UNALLOCATED 62.192.230.0/24 20632 PETERSTAR Autonomous
38976 UNALLOCATED 62.192.231.0/24 20632 PETERSTAR Autonomous
38976 UNALLOCATED 62.192.232.0/24 20632 PETERSTAR Autonomous

Complete listing at http://thyme.rand.apnic.net/london/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 0 *
198.18.0.0/15 65333 Internet Assigned Numbers Aut

Complete listing at http://thyme.rand.apnic.net/london/data-dsua

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
41.78.228.0/22 5713 Telkom SA Ltd
66.206.47.0/24 17557 Pakistan Telecom
66.207.32.0/20 23011 >>UNKNOWN<<
121.54.161.0/24 38890 Internet Service Provider /ID
121.54.162.0/24 38890 Internet Service Provider /ID
190.102.32.0/20 30058 FDC Servers.net, LLC
202.58.113.0/24 19161 INNOCOM TELECOM
202.66.160.0/20 9584 Diyixian.com Limited
202.66.176.0/20 9584 Diyixian.com Limited
202.66.184.0/24 9584 Diyixian.com Limited

Complete listing at http://thyme.rand.apnic.net/london/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 /8:3 /9:2 /10:7 /11:5 /12:17
/13:33 /14:94 /15:156 /16:2090 /17:1086 /18:1893
/19:4096 /20:5172 /21:5382 /22:7140 /23:6879 /24:34996
/25:11 /26:17 /27:24 /28:153 /29:95 /30:43
/31:0 /32:110

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
23456 332 567 32-bit ASN transition
9198 328 464 Kazakhtelecom Data Network Ad
31148 325 325 FreeNet ISP
29049 322 326 AzerSat LLC.
6517 309 333 Yipes Communications, Inc.
30890 302 375 Evolva Telecom
15105 256 269 Network Telephone Corporation
15003 204 208 TEGRIS Corporation
9050 178 228 RTD-ROMTELECOM Autonomous Sys
35908 175 199 VPLS Inc.

Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:37 2:28 4:2 8:17 12:11 13:1
14:30 20:2 24:13 27:218 38:50 41:340
44:1 46:263 49:47 58:218 59:100 60:113
61:333 62:290 63:38 64:326 65:100 66:283
67:174 68:122 69:264 70:77 71:3 72:176
74:148 75:4 76:60 77:435 78:214 79:201
80:468 81:416 82:208 83:211 84:208 85:635
86:265 87:451 88:155 89:980 90:54 91:1608
92:223 93:480 94:868 95:344 96:28 97:16
98:181 101:5 109:500 110:123 111:147 112:143
113:125 114:137 115:227 116:251 117:172 118:245
119:306 120:73 121:128 122:169 123:445 124:549
125:334 128:2 129:5 130:6 131:24 133:16
134:12 135:2 138:16 139:12 140:4 141:17
142:7 143:12 144:64 145:7 146:62 147:20
148:12 149:61 150:10 151:1 152:16 153:18
155:4 156:15 157:2 158:7 159:29 160:14
161:8 162:3 163:14 164:71 165:61 166:1
167:15 168:32 169:15 170:105 171:3 173:156
174:85 175:35 178:478 180:316 182:171 183:170
184:17 188:443 190:2 192:589 193:1674 194:1094
195:1136 196:506 198:217 199:271 200:82 201:3
202:2465 203:2320 204:261 205:66 206:273 207:348
208:273 209:252 210:583 211:179 212:668 213:581
216:481 217:586 218:81 219:29 220:531 221:111
222:20 223:21

End of report
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[bgp-stats] Routing Table Report - Japan view

* BGP Routing Table Analysis Reports *
Routing Table Report 04:00 +10GMT Sun 06 Feb, 2011

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/

Analysis Summary
----------------

BGP routing table entries examined: 344575
Prefixes after maximum aggregation: 155455
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 170345
Total ASes present in the Internet Routing Table: 35786
Prefixes per ASN: 9.63
Origin-only ASes present in the Internet Routing Table: 30858
Origin ASes announcing only one prefix: 14959
Transit ASes present in the Internet Routing Table: 4928
Transit-only ASes present in the Internet Routing Table: 120
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 31
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 398
Unregistered ASNs in the Routing Table: 129
Number of 32-bit ASNs allocated by the RIRs: 1088
Prefixes from 32-bit ASNs in the Routing Table: 1
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 196
Number of addresses announced to Internet: 2382063936
Equivalent to 141 /8s, 251 /16s and 105 /24s
Percentage of available address space announced: 64.3
Percentage of allocated address space announced: 64.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 88.1
Total number of prefixes smaller than registry allocations: 142280

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 85197
Total APNIC prefixes after maximum aggregation: 28883
APNIC Deaggregation factor: 2.95
Prefixes being announced from the APNIC address blocks: 81884
Unique aggregates announced from the APNIC address blocks: 35603
APNIC Region origin ASes present in the Internet Routing Table: 4314
APNIC Prefixes per ASN: 18.98
APNIC Region origin ASes announcing only one prefix: 1210
APNIC Region transit ASes present in the Internet Routing Table: 689
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 589022240
Equivalent to 35 /8s, 27 /16s and 196 /24s
Percentage of available APNIC address space announced: 74.7

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes: 138673
Total ARIN prefixes after maximum aggregation: 71047
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 109517
Unique aggregates announced from the ARIN address blocks: 44675
ARIN Region origin ASes present in the Internet Routing Table: 14171
ARIN Prefixes per ASN: 7.73
ARIN Region origin ASes announcing only one prefix: 5407
ARIN Region transit ASes present in the Internet Routing Table: 1468
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 752030592
Equivalent to 44 /8s, 211 /16s and 19 /24s
Percentage of available ARIN address space announced: 62.3

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes: 81512
Total RIPE prefixes after maximum aggregation: 46303
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 74886
Unique aggregates announced from the RIPE address blocks: 48658
RIPE Region origin ASes present in the Internet Routing Table: 15265
RIPE Prefixes per ASN: 4.91
RIPE Region origin ASes announcing only one prefix: 7773
RIPE Region transit ASes present in the Internet Routing Table: 2366
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 457177664
Equivalent to 27 /8s, 63 /16s and 250 /24s
Percentage of available RIPE address space announced: 73.6

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 31598
Total LACNIC prefixes after maximum aggregation: 7275
LACNIC Deaggregation factor: 4.34
Prefixes being announced from the LACNIC address blocks: 30339
Unique aggregates announced from the LACNIC address blocks: 15866
LACNIC Region origin ASes present in the Internet Routing Table: 1424
LACNIC Prefixes per ASN: 21.31
LACNIC Region origin ASes announcing only one prefix: 433
LACNIC Region transit ASes present in the Internet Routing Table: 252
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 80384640
Equivalent to 4 /8s, 202 /16s and 146 /24s
Percentage of available LACNIC address space announced: 53.2

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 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: 7374
Total AfriNIC prefixes after maximum aggregation: 1835
AfriNIC Deaggregation factor: 4.02
Prefixes being announced from the AfriNIC address blocks: 5797
Unique aggregates announced from the AfriNIC address blocks: 1794
AfriNIC Region origin ASes present in the Internet Routing Table: 432
AfriNIC Prefixes per ASN: 13.42
AfriNIC Region origin ASes announcing only one prefix: 135
AfriNIC Region transit ASes present in the Internet Routing Table: 92
Average AfriNIC Region AS path length visible: 5.3
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21805312
Equivalent to 1 /8s, 76 /16s and 185 /24s
Percentage of available AfriNIC address space announced: 32.5

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
4766 1914 9485 525 Korea Telecom (KIX)
7545 1619 301 84 TPG Internet Pty Ltd
4755 1409 637 161 TATA Communications formerly
17974 1390 467 27 PT TELEKOMUNIKASI INDONESIA
24560 1099 318 182 Bharti Airtel Ltd., Telemedia
9583 1044 76 487 Sify Limited
4808 1034 2130 292 CNCGROUP IP network: China169
17488 952 162 104 Hathway IP Over Cable Interne
18101 928 117 144 Reliance Infocom Ltd Internet
9829 896 762 41 BSNL National Internet Backbo

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3705 3855 265 bellsouth.net, inc.
4323 2624 1109 403 Time Warner Telecom
19262 1842 4951 283 Verizon Global Networks
1785 1785 697 132 PaeTec Communications, Inc.
20115 1522 1532 642 Charter Communications
6478 1482 291 81 AT&T Worldnet Services
7018 1353 6673 871 AT&T WorldNet Services
2386 1295 553 933 AT&T Data Communications Serv
22773 1278 2865 78 Cox Communications, Inc.
11492 1264 235 79 Cable One

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6830 515 1764 319 UPC Distribution Services
9198 464 266 14 Kazakhtelecom Data Network Ad
34984 458 97 137 BILISIM TELEKOM
3292 447 2011 390 TDC Tele Danmark
8866 440 133 23 Bulgarian Telecommunication C
3320 407 7620 355 Deutsche Telekom AG
8551 403 353 46 Bezeq International
702 397 1817 310 UUNET - Commercial IP service
20940 394 91 303 Akamai Technologies European
3301 384 1823 342 TeliaNet Sweden

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
10620 1357 252 162 TVCABLE BOGOTA
8151 1330 2647 357 UniNet S.A. de C.V.
28573 1242 961 82 NET Servicos de Comunicao S.A
6503 1187 355 78 AVANTEL, S.A.
7303 888 461 116 Telecom Argentina Stet-France
14420 625 56 93 CORPORACION NACIONAL DE TELEC
22047 548 310 15 VTR PUNTO NET S.A.
3816 500 220 94 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 457 34 32 Telefonica del Sur S.A.

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8452 814 445 11 TEDATA
24863 761 147 39 LINKdotNET AS number
36992 635 329 19 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 217 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
33776 194 12 15 Starcomms Nigeria Limited
29571 192 17 11 Ci Telecom Autonomous system
16637 152 438 87 MTN Network Solutions
29975 132 490 17 Vodacom

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3705 3855 265 bellsouth.net, inc.
4323 2624 1109 403 Time Warner Telecom
4766 1914 9485 525 Korea Telecom (KIX)
19262 1842 4951 283 Verizon Global Networks
1785 1785 697 132 PaeTec Communications, Inc.
7545 1619 301 84 TPG Internet Pty Ltd
20115 1522 1532 642 Charter Communications
6478 1482 291 81 AT&T Worldnet Services
4755 1409 637 161 TATA Communications formerly
17974 1390 467 27 PT TELEKOMUNIKASI INDONESIA

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
4323 2624 2221 Time Warner Telecom
1785 1785 1653 PaeTec Communications, Inc.
19262 1842 1559 Verizon Global Networks
7545 1619 1535 TPG Internet Pty Ltd
6478 1482 1401 AT&T Worldnet Services
4766 1914 1389 Korea Telecom (KIX)
17974 1390 1363 PT TELEKOMUNIKASI INDONESIA
4755 1409 1248 TATA Communications formerly
22773 1278 1200 Cox Communications, Inc.
10620 1357 1195 TVCABLE BOGOTA

Complete listing at http://thyme.rand.apnic.net/current/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/current/data-badAS

Advertised Unallocated Addresses
--------------------------------

Complete listing at http://thyme.rand.apnic.net/current/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 /9:11 /10:26 /11:73 /12:221
/13:444 /14:772 /15:1371 /16:11546 /17:5631 /18:9298
/19:18814 /20:24296 /21:24676 /22:32880 /23:31423 /24:180228
/25:993 /26:1074 /27:587 /28:165 /29:16 /30:3
/31:0 /32:8

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
6389 2284 3705 bellsouth.net, inc.
6478 1436 1482 AT&T Worldnet Services
4323 1412 2624 Time Warner Telecom
10620 1248 1357 TVCABLE BOGOTA
11492 1221 1264 Cable One
18566 1160 1182 Covad Communications
7011 1063 1164 Citizens Utilities
1785 1054 1785 PaeTec Communications, Inc.
6503 964 1187 AVANTEL, S.A.
19262 954 1842 Verizon Global Networks

Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:169 2:39 4:13 5:1 8:334 12:2027
13:1 14:396 15:15 16:3 17:8 20:9
21:2 23:1 24:1465 27:572 32:61 33:5
34:2 37:1 38:695 40:101 41:2278 44:3
46:548 47:5 49:143 50:84 52:12 55:5
56:2 57:31 58:865 59:483 60:391 61:1116
62:1063 63:1927 64:3753 65:2358 66:4125 67:1761
68:1005 69:2884 70:717 71:397 72:1994 73:1
74:2322 75:292 76:342 77:861 78:703 79:442
80:1044 81:825 82:532 83:472 84:644 85:1047
86:532 87:740 88:357 89:1589 90:156 91:3459
92:494 93:1039 94:1198 95:795 96:416 97:250
98:784 99:33 101:23 107:3 108:82 109:895
110:472 111:693 112:312 113:353 114:496 115:641
116:922 117:675 118:649 119:1015 120:240 121:698
122:1613 123:1053 124:1269 125:1216 128:264 129:152
130:165 131:567 132:110 133:20 134:217 135:49
136:216 137:146 138:290 139:120 140:490 141:197
142:362 143:376 144:478 145:51 146:428 147:193
148:626 149:274 150:152 151:230 152:306 153:177
154:3 155:347 156:175 157:342 158:128 159:379
160:315 161:205 162:278 163:160 164:486 165:338
166:482 167:420 168:741 169:152 170:751 171:66
172:2 173:1276 174:521 175:314 176:1 177:12
178:783 180:777 182:340 183:250 184:208 186:975
187:785 188:911 189:1052 190:4384 192:5781 193:4800
194:3496 195:2946 196:1137 197:3 198:3577 199:3757
200:5591 201:1579 202:8257 203:8426 204:4101 205:2344
206:2632 207:3083 208:3884 209:3497 210:2641 211:1332
212:1872 213:1725 214:757 215:62 216:4804 217:1601
218:528 219:376 220:1202 221:449 222:319 223:95

End of report
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Friday, February 4, 2011

[bgp-stats] Routing Table Report - RouteViews-3 view

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sat 05 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: 350007
Prefixes after maximum aggregation: 157067
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 170270
Total ASes present in the Internet Routing Table: 35829
Prefixes per ASN: 9.77
Origin-only ASes present in the Internet Routing Table: 30882
Origin ASes announcing only one prefix: 14922
Transit ASes present in the Internet Routing Table: 4947
Transit-only ASes present in the Internet Routing Table: 112
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 33
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 473
Unregistered ASNs in the Routing Table: 151
Number of 32-bit ASNs allocated by the RIRs: 1077
Prefixes from 32-bit ASNs in the Routing Table: 2
Special use prefixes present in the Routing Table: 73
Prefixes being announced from unallocated address space: 208
Number of addresses announced to Internet: 2382419135
Equivalent to 142 /8s, 0 /16s and 212 /24s
Percentage of available address space announced: 64.3
Percentage of allocated address space announced: 65.8
Percentage of available address space allocated: 97.7
Percentage of address space in use by end-sites: 88.1
Total number of prefixes smaller than registry allocations: 144617

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 83837
Total APNIC prefixes after maximum aggregation: 28094
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 80652
Unique aggregates announced from the APNIC address blocks: 35585
APNIC Region origin ASes present in the Internet Routing Table: 4301
APNIC Prefixes per ASN: 18.75
APNIC Region origin ASes announcing only one prefix: 1220
APNIC Region transit ASes present in the Internet Routing Table: 678
Average APNIC Region AS path length visible: 5.4
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 589027010
Equivalent to 35 /8s, 27 /16s and 214 /24s
Percentage of available APNIC address space announced: 76.3

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, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 106/8,
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: 141738
Total ARIN prefixes after maximum aggregation: 73018
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 112269
Unique aggregates announced from the ARIN address blocks: 44576
ARIN Region origin ASes present in the Internet Routing Table: 14196
ARIN Prefixes per ASN: 7.91
ARIN Region origin ASes announcing only one prefix: 5405
ARIN Region transit ASes present in the Internet Routing Table: 1467
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 27
Number of ARIN addresses announced to Internet: 752077193
Equivalent to 44 /8s, 211 /16s and 201 /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: 85028
Total RIPE prefixes after maximum aggregation: 46676
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 77505
Unique aggregates announced from the RIPE address blocks: 48593
RIPE Region origin ASes present in the Internet Routing Table: 15299
RIPE Prefixes per ASN: 5.07
RIPE Region origin ASes announcing only one prefix: 7732
RIPE Region transit ASes present in the Internet Routing Table: 2386
Average RIPE Region AS path length visible: 4.9
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 457157449
Equivalent to 27 /8s, 63 /16s and 171 /24s
Percentage of available RIPE address space announced: 75.7

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 31700
Total LACNIC prefixes after maximum aggregation: 7316
LACNIC Deaggregation factor: 4.33
Prefixes being announced from the LACNIC address blocks: 30443
Unique aggregates announced from the LACNIC address blocks: 15862
LACNIC Region origin ASes present in the Internet Routing Table: 1427
LACNIC Prefixes per ASN: 21.33
LACNIC Region origin ASes announcing only one prefix: 434
LACNIC Region transit ASes present in the Internet Routing Table: 257
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 80438668
Equivalent to 4 /8s, 203 /16s and 101 /24s
Percentage of available LACNIC address space announced: 59.9

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: 7447
Total AfriNIC prefixes after maximum aggregation: 1849
AfriNIC Deaggregation factor: 4.03
Prefixes being announced from the AfriNIC address blocks: 5866
Unique aggregates announced from the AfriNIC address blocks: 1790
AfriNIC Region origin ASes present in the Internet Routing Table: 434
AfriNIC Prefixes per ASN: 13.52
AfriNIC Region origin ASes announcing only one prefix: 131
AfriNIC Region transit ASes present in the Internet Routing Table: 95
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 33
Number of AfriNIC addresses announced to Internet: 21799936
Equivalent to 1 /8s, 76 /16s and 164 /24s
Percentage of available AfriNIC address space announced: 43.3

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 1619 301 84 TPG Internet Pty Ltd
4755 1406 376 158 Videsh Sanchar Nigam Ltd. Aut
17974 1393 467 27 PT TELEKOMUNIKASI INDONESIA
24560 1099 318 182 Bharti Airtel Ltd.
9583 1042 76 490 Sify Limited
17488 967 162 104 Hathway IP Over Cable Interne
18101 925 117 142 Reliance Infocom Ltd Internet
4808 903 1939 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 3703 3855 265 bellsouth.net, inc.
4323 2620 1109 403 Time Warner Telecom
19262 1842 4935 283 Verizon Global Networks
1785 1785 697 132 AppliedTheory Corporation
20115 1572 1536 642 Charter Communications
6478 1482 291 81 AT&T Worldnet Services
7018 1358 6681 875 AT&T WorldNet Services
2386 1295 554 933 AT&T Data Communications Serv
22773 1277 2865 78 Cox Communications, Inc.
11492 1264 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
286 981 713 158 KPNQwest Backbone AS
9116 545 328 32 Goldenlines main autonomous s
6830 516 1764 319 UPC Distribution Services
3292 506 2011 391 TDC Tele Danmark
9198 464 266 14 Kazakhtelecom Corporate Sales
34984 458 97 137 Tellcom Iletisim Hizmetleri
8866 441 133 23 Bulgarian Telecommunication C
3320 406 7619 354 Deutsche Telekom AG
8551 405 355 38 Bezeq International
20940 399 91 307 Akamai Technologies European

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 252 162 TVCABLE BOGOTA
8151 1331 2633 358 Uninet S.A. de C.V.
28573 1238 961 82 Types of queries are: POCs, o
6503 1189 355 79 AVANTEL, S.A.
7303 887 461 115 Telecom Argentina Stet-France
14420 625 56 93 Types of queries are: POCs, o
22047 548 310 15 Types of queries are: POCs, o
3816 500 220 94 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
27947 463 53 49 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
8452 801 445 11 TEDATA
24863 761 147 39 LINKdotNET AS number
36992 635 329 19 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 218 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
33776 194 12 15 Starcomms Nigeria Limited
29571 192 17 11 Ci Telecom Autonomous system
16637 149 422 84 Johnnic e-Ventures
29975 132 490 17 Vodacom

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 3703 3855 265 bellsouth.net, inc.
4323 2620 1109 403 Time Warner Telecom
19262 1842 4935 283 Verizon Global Networks
1785 1785 697 132 AppliedTheory Corporation
4766 1759 9484 515 Korea Telecom (KIX)
7545 1619 301 84 TPG Internet Pty Ltd
20115 1572 1536 642 Charter Communications
6478 1482 291 81 AT&T Worldnet Services
4755 1406 376 158 Videsh Sanchar Nigam Ltd. Aut
17974 1393 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 2620 2217 Time Warner Telecom
1785 1785 1653 AppliedTheory Corporation
19262 1842 1559 Verizon Global Networks
7545 1619 1535 TPG Internet Pty Ltd
6478 1482 1401 AT&T Worldnet Services
17974 1393 1366 PT TELEKOMUNIKASI INDONESIA
4755 1406 1248 Videsh Sanchar Nigam Ltd. Aut
4766 1759 1244 Korea Telecom (KIX)
22773 1277 1199 Cox Communications, Inc.
10620 1357 1195 TVCABLE BOGOTA

Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua

Advertised Unallocated Addresses
--------------------------------

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 /9:11 /10:26 /11:74 /12:221
/13:444 /14:777 /15:1396 /16:11658 /17:5865 /18:9604
/19:19313 /20:24971 /21:25047 /22:33328 /23:32089 /24:182013
/25:379 /26:358 /27:212 /28:380 /29:332 /30:766
/31:50 /32:673

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
6389 2282 3703 bellsouth.net, inc.
6478 1436 1482 AT&T Worldnet Services
4323 1408 2620 Time Warner Telecom
10620 1248 1357 TVCABLE BOGOTA
11492 1221 1264 Cable One
18566 1160 1182 Covad Communications
7011 1063 1164 Citizens Utilities
1785 1054 1785 AppliedTheory Corporation
6503 964 1189 AVANTEL, S.A.
19262 954 1842 Verizon Global Networks

Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:166 2:51 4:17 5:1 8:335 12:2029
13:1 14:396 15:15 16:3 17:8 20:9
21:2 23:1 24:1490 27:572 32:128 33:5
34:2 37:1 38:694 40:101 41:2325 44:3
46:573 47:5 49:143 50:84 52:12 55:6
56:2 57:42 58:867 59:485 60:391 61:1118
62:1085 63:1931 64:3775 65:2362 66:4149 67:1796
68:1160 69:2982 70:758 71:402 72:2041 73:3
74:2375 75:304 76:338 77:856 78:709 79:453
80:1053 81:847 82:545 83:482 84:665 85:1077
86:537 87:765 88:361 89:1630 90:147 91:3461
92:496 93:1052 94:1207 95:806 96:416 97:250
98:765 99:33 101:23 107:3 108:82 109:878
110:472 111:693 112:312 113:354 114:495 115:641
116:909 117:676 118:649 119:1018 120:243 121:700
122:1612 123:1053 124:1291 125:1217 128:265 129:154
130:172 131:565 132:110 133:20 134:219 135:49
136:216 137:147 138:292 139:133 140:490 141:196
142:363 143:377 144:483 145:51 146:428 147:204
148:625 149:274 150:152 151:231 152:306 153:177
154:3 155:347 156:174 157:343 158:128 159:379
160:315 161:205 162:278 163:159 164:487 165:356
166:481 167:420 168:741 169:155 170:750 171:66
172:2 173:1287 174:525 175:314 176:1 177:12
178:787 180:778 182:344 183:250 184:240 186:986
187:778 188:916 189:1055 190:4388 192:5825 193:4832
194:3559 195:3091 196:1184 197:3 198:3592 199:3765
200:5588 201:1589 202:8417 203:8452 204:4099 205:2344
206:2649 207:3086 208:3902 209:3501 210:2648 211:1332
212:1908 213:1747 214:757 215:62 216:4827 217:1624
218:532 219:377 220:1205 221:451 222:343 223:95

End of report
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