BGP Routing: 2011-01-23

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, January 29, 2011

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

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sun 30 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: 346039
Prefixes after maximum aggregation: 156347
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 169341
Total ASes present in the Internet Routing Table: 35740
Prefixes per ASN: 9.68
Origin-only ASes present in the Internet Routing Table: 30814
Origin ASes announcing only one prefix: 14907
Transit ASes present in the Internet Routing Table: 4926
Transit-only ASes present in the Internet Routing Table: 112
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: 398
Unregistered ASNs in the Routing Table: 151
Number of 32-bit ASNs allocated by the RIRs: 1059
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: 217
Number of addresses announced to Internet: 2349465791
Equivalent to 140 /8s, 10 /16s and 0 /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: 141956

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

Prefixes being announced by APNIC Region ASes: 83657
Total APNIC prefixes after maximum aggregation: 28014
APNIC Deaggregation factor: 2.99
Prefixes being announced from the APNIC address blocks: 80567
Unique aggregates announced from the APNIC address blocks: 35525
APNIC Region origin ASes present in the Internet Routing Table: 4300
APNIC Prefixes per ASN: 18.74
APNIC Region origin ASes announcing only one prefix: 1228
APNIC Region transit ASes present in the Internet Routing Table: 678
Average APNIC Region AS path length visible: 5.7
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 586725314
Equivalent to 34 /8s, 248 /16s and 183 /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: 141221
Total ARIN prefixes after maximum aggregation: 72755
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 111846
Unique aggregates announced from the ARIN address blocks: 44427
ARIN Region origin ASes present in the Internet Routing Table: 14183
ARIN Prefixes per ASN: 7.89
ARIN Region origin ASes announcing only one prefix: 5403
ARIN Region transit ASes present in the Internet Routing Table: 1473
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 27
Number of ARIN addresses announced to Internet: 751672713
Equivalent to 44 /8s, 205 /16s and 157 /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: 84500
Total RIPE prefixes after maximum aggregation: 46497
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 77071
Unique aggregates announced from the RIPE address blocks: 48323
RIPE Region origin ASes present in the Internet Routing Table: 15255
RIPE Prefixes per ASN: 5.05
RIPE Region origin ASes announcing only one prefix: 7724
RIPE Region transit ASes present in the Internet Routing Table: 2380
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 457149449
Equivalent to 27 /8s, 63 /16s and 140 /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: 31682
Total LACNIC prefixes after maximum aggregation: 7283
LACNIC Deaggregation factor: 4.35
Prefixes being announced from the LACNIC address blocks: 30427
Unique aggregates announced from the LACNIC address blocks: 15823
LACNIC Region origin ASes present in the Internet Routing Table: 1423
LACNIC Prefixes per ASN: 21.38
LACNIC Region origin ASes announcing only one prefix: 429
LACNIC Region transit ASes present in the Internet Routing Table: 253
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 23
Number of LACNIC addresses announced to Internet: 80221900
Equivalent to 4 /8s, 200 /16s and 22 /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: 4722
Total AfriNIC prefixes after maximum aggregation: 1673
AfriNIC Deaggregation factor: 2.82
Prefixes being announced from the AfriNIC address blocks: 3526
Unique aggregates announced from the AfriNIC address blocks: 1600
AfriNIC Region origin ASes present in the Internet Routing Table: 405
AfriNIC Prefixes per ASN: 8.71
AfriNIC Region origin ASes announcing only one prefix: 123
AfriNIC Region transit ASes present in the Internet Routing Table: 89
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 33
Number of AfriNIC addresses announced to Internet: 18368000
Equivalent to 1 /8s, 24 /16s and 70 /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 1579 299 79 TPG Internet Pty Ltd
4755 1400 376 158 Videsh Sanchar Nigam Ltd. Aut
17974 1391 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 897 1921 249 CNCGROUP IP network: China169
9829 886 761 44 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 2632 1109 404 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 1299 554 935 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 1328 2631 360 Uninet S.A. de C.V.
28573 1245 961 82 Types of queries are: POCs, o
6503 1150 355 78 AVANTEL, S.A.
7303 889 461 115 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 530 222 99 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 102 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 2632 1109 404 Time Warner Telecom
19262 1841 4927 285 Verizon Global Networks
1785 1787 697 133 AppliedTheory Corporation
4766 1760 9484 516 Korea Telecom (KIX)
7545 1579 299 79 TPG Internet Pty Ltd
20115 1571 1535 642 Charter Communications
6478 1483 292 54 AT&T Worldnet Services
4755 1400 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 2632 2228 Time Warner Telecom
1785 1787 1654 AppliedTheory Corporation
19262 1841 1556 Verizon Global Networks
7545 1579 1500 TPG Internet Pty Ltd
6478 1483 1429 AT&T Worldnet Services
17974 1391 1364 PT TELEKOMUNIKASI INDONESIA
4766 1760 1244 Korea Telecom (KIX)
4755 1400 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 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
41.57.192.0/18 22750 BCSNET
41.78.192.0/22 30999 Emtel is GSM, 3G and ISP in M
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 /8:19 /9:10 /10:26 /11:72 /12:215
/13:440 /14:771 /15:1384 /16:11573 /17:5814 /18:9521
/19:19237 /20:24876 /21:24904 /22:32715 /23:31589 /24:179799
/25:375 /26:349 /27:201 /28:376 /29:313 /30:754
/31:47 /32:659

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 1420 2632 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 2:46 4:17 5:1 8:333 12:2034
13:1 14:382 15:15 16:3 17:8 20:8
23:1 24:1494 27:553 32:128 33:5 34:2
36:1 37:1 38:692 40:101 41:1628 42:1
44:3 46:520 47:5 49:143 50:76 52:12
55:5 56:2 57:41 58:870 59:485 60:391
61:1122 62:872 63:1930 64:3781 65:2336 66:4095
67:1792 68:1161 69:2979 70:758 71:396 72:2036
73:3 74:2365 75:305 76:338 77:864 78:693
79:450 80:1030 81:776 82:521 83:480 84:472
85:1076 86:513 87:762 88:364 89:1617 90:155
91:3449 92:494 93:1049 94:1171 95:793 96:422
97:249 98:763 99:33 101:24 107:3 108:81
109:875 110:469 111:695 112:313 113:351 114:493
115:634 116:895 117:673 118:646 119:1023 120:244
121:704 122:1608 123:1051 124:1291 125:1214 128:248
129:159 130:174 131:563 132:110 133:20 134:220
135:49 136:216 137:147 138:294 139:133 140:490
141:198 142:364 143:374 144:486 145:51 146:426
147:205 148:626 149:273 150:151 151:231 152:303
153:175 154:3 155:346 156:174 157:342 158:128
159:377 160:314 161:205 162:277 163:117 164:485
165:357 166:481 167:422 168:739 169:155 170:748
171:66 172:1 173:1280 174:520 175:313 176:1
177:4 178:762 180:774 182:403 183:247 184:239
186:964 187:799 188:911 189:1025 190:4443 192:5819
193:4823 194:3525 195:3075 196:1032 197:3 198:3567
199:3754 200:5583 201:1578 202:8432 203:8458 204:4102
205:2345 206:2599 207:2967 208:3894 209:3498 210:2622
211:1330 212:1917 213:1678 214:749 215:62 216:4856
217:1502 218:529 219:376 220:1204 221:450 222:343
223:92

End of report
_______________________________________________
bgp-stats mailing list
bgp-stats@lists.apnic.net
http://mailman.apnic.net/mailman/listinfo/bgp-stats

[bgp-stats] Routing Table Report - London view

* BGP Routing Table Analysis Reports *
Routing Table Report 08:00 +10GMT Sun 30 Jan, 2011

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

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

BGP routing table entries examined: 335975
Prefixes after maximum aggregation: 153991
Deaggregation factor: 2.18
Unique aggregates announced to Internet: 169067
Total ASes present in the Internet Routing Table: 35539
Prefixes per ASN: 9.45
Origin-only ASes present in the Internet Routing Table: 30748
Origin ASes announcing only one prefix: 14943
Transit ASes present in the Internet Routing Table: 4791
Transit-only ASes present in the Internet Routing Table: 107
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 30
Max AS path prepend of ASN (16181) 22
Prefixes from unregistered ASNs in the Routing Table: 318
Unregistered ASNs in the Routing Table: 123
Number of 32-bit ASNs allocated by the RIRs: 1059
Prefixes from 32-bit ASNs in the Routing Table: 1611
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 207
Number of addresses announced to Internet: 2483466752
Equivalent to 148 /8s, 6 /16s and 178 /24s
Percentage of available address space announced: 67.0
Percentage of allocated address space announced: 69.2
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: 136423

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

Prefixes being announced by APNIC Region ASes: 81422
Total APNIC prefixes after maximum aggregation: 27829
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 79030
Unique aggregates announced from the APNIC address blocks: 35396
APNIC Region origin ASes present in the Internet Routing Table: 4260
APNIC Prefixes per ASN: 18.55
APNIC Region origin ASes announcing only one prefix: 1223
APNIC Region transit ASes present in the Internet Routing Table: 658
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 586420736
Equivalent to 34 /8s, 244 /16s and 18 /24s
Percentage of available APNIC address space announced: 79.4

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

Prefixes being announced by ARIN Region ASes: 135165
Total ARIN prefixes after maximum aggregation: 69303
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 108117
Unique aggregates announced from the ARIN address blocks: 44485
ARIN Region origin ASes present in the Internet Routing Table: 14073
ARIN Prefixes per ASN: 7.68
ARIN Region origin ASes announcing only one prefix: 5388
ARIN Region transit ASes present in the Internet Routing Table: 1389
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 751570688
Equivalent to 44 /8s, 204 /16s and 15 /24s
Percentage of available ARIN address space announced: 63.1

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

Prefixes being announced by RIPE Region ASes: 81295
Total RIPE prefixes after maximum aggregation: 46145
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 74654
Unique aggregates announced from the RIPE address blocks: 48322
RIPE Region origin ASes present in the Internet Routing Table: 15227
RIPE Prefixes per ASN: 4.90
RIPE Region origin ASes announcing only one prefix: 7774
RIPE Region transit ASes present in the Internet Routing Table: 2354
Average RIPE Region AS path length visible: 3.4
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 456748288
Equivalent to 27 /8s, 57 /16s and 109 /24s
Percentage of available RIPE address space announced: 75.6

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

Prefixes being announced by LACNIC Region ASes: 31114
Total LACNIC prefixes after maximum aggregation: 7172
LACNIC Deaggregation factor: 4.34
Prefixes being announced from the LACNIC address blocks: 30038
Unique aggregates announced from the LACNIC address blocks: 15817
LACNIC Region origin ASes present in the Internet Routing Table: 1409
LACNIC Prefixes per ASN: 21.32
LACNIC Region origin ASes announcing only one prefix: 434
LACNIC Region transit ASes present in the Internet Routing Table: 238
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 80190208
Equivalent to 4 /8s, 199 /16s and 155 /24s
Percentage of available LACNIC address space announced: 59.7

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: 4693
Total AfriNIC prefixes after maximum aggregation: 1651
AfriNIC Deaggregation factor: 2.84
Prefixes being announced from the AfriNIC address blocks: 3497
Unique aggregates announced from the AfriNIC address blocks: 1576
AfriNIC Region origin ASes present in the Internet Routing Table: 401
AfriNIC Prefixes per ASN: 8.72
AfriNIC Region origin ASes announcing only one prefix: 124
AfriNIC Region transit ASes present in the Internet Routing Table: 89
Average AfriNIC Region AS path length visible: 3.5
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 18320896
Equivalent to 1 /8s, 23 /16s and 142 /24s
Percentage of available AfriNIC address space announced: 36.4

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 1580 299 80 TPG Internet Pty Ltd
4755 1401 636 161 TATA Communications formerly
17974 1390 459 28 PT TELEKOMUNIKASI INDONESIA
24560 1094 317 180 Bharti Airtel Ltd., Telemedia
9583 1014 75 506 Sify Limited
17488 950 162 103 Hathway IP Over Cable Interne
4808 930 2012 266 CNCGROUP IP network: China169
18101 912 116 137 Reliance Infocom Ltd Internet
9829 886 761 44 BSNL National Internet Backbo

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
6389 3709 3855 266 bellsouth.net, inc.
4323 2634 1125 405 Time Warner Telecom
19262 1841 4943 285 Verizon Global Networks
1785 1790 698 133 PaeTec Communications, Inc.
20115 1521 1531 642 Charter Communications
6478 1483 292 54 AT&T Worldnet Services
7018 1372 6708 890 AT&T WorldNet Services
2386 1299 554 935 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/london/data-ASnet-ARIN

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

ASN No of nets /20 equiv MaxAgg Description
6830 510 1764 317 UPC Distribution Services
9116 481 328 31 Goldenlines main autonomous s
9198 465 266 14 Kazakhtelecom Data Network Ad
34984 458 97 137 BILISIM TELEKOM
3292 447 2011 390 TDC Tele Danmark
8866 438 133 23 Bulgarian Telecommunication C
12479 412 577 6 Uni2 Autonomous System
8551 404 355 38 Bezeq International
702 401 1819 314 UUNET - Commercial IP service
3320 401 7616 350 Deutsche Telekom AG

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
10620 1357 252 165 TVCABLE BOGOTA
28573 1224 961 82 NET Servicos de Comunicao S.A
8151 1200 2611 356 UniNet S.A. de C.V.
6503 1139 355 79 AVANTEL, S.A.
7303 864 460 103 Telecom Argentina Stet-France
14420 614 55 90 ANDINATEL S.A.
22047 566 310 15 VTR PUNTO NET S.A.
3816 499 220 95 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 456 34 31 Telefonica del Sur S.A.

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 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 154 439 86 MTN Network Solutions
36874 139 24 6 Cybersmart
29975 131 475 17 Vodacom
37061 108 9 2 One Communications Ltd
15706 102 16 5 Sudatel Internet Exchange Aut
37054 85 5 21 Data Telecom Service

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
6389 3709 3855 266 bellsouth.net, inc.
4323 2634 1125 405 Time Warner Telecom
19262 1841 4943 285 Verizon Global Networks
1785 1790 698 133 PaeTec Communications, Inc.
4766 1760 9484 516 Korea Telecom (KIX)
23456 1611 397 889 32-bit ASN transition
7545 1580 299 80 TPG Internet Pty Ltd
20115 1521 1531 642 Charter Communications
6478 1483 292 54 AT&T Worldnet Services
4755 1401 636 161 TATA Communications formerly

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

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

ASN No of nets Net Savings Description
4323 2634 2229 Time Warner Telecom
1785 1790 1657 PaeTec Communications, Inc.
19262 1841 1556 Verizon Global Networks
7545 1580 1500 TPG Internet Pty Ltd
6478 1483 1429 AT&T Worldnet Services
17974 1390 1362 PT TELEKOMUNIKASI INDONESIA
4766 1760 1244 Korea Telecom (KIX)
4755 1401 1240 TATA Communications formerly
11492 1271 1197 Cable One
22773 1274 1196 Cox Communications, Inc.

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 *
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

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
--------------------------------

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 /8:27 /9:10 /10:26 /11:71 /12:215
/13:439 /14:764 /15:1358 /16:11420 /17:5560 /18:9172
/19:18825 /20:24200 /21:24393 /22:32170 /23:30793 /24:176091
/25:11 /26:17 /27:23 /28:150 /29:91 /30:41
/31:0 /32:108

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

ASN No of nets Total ann. Description
6389 2287 3709 bellsouth.net, inc.
6478 1437 1483 AT&T Worldnet Services
4323 1421 2634 Time Warner Telecom
10620 1248 1357 TVCABLE BOGOTA
11492 1227 1271 Cable One
18566 1103 1122 Covad Communications
7011 1065 1168 Citizens Utilities
1785 1059 1790 PaeTec Communications, Inc.
23456 956 1611 32-bit ASN transition
19262 954 1841 Verizon Global Networks

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

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

1:167 2:30 4:13 5:1 8:330 12:2030
13:1 14:360 15:15 16:3 17:8 20:9
23:1 24:1465 27:552 32:57 33:5 34:2
36:1 37:1 38:689 40:101 41:1624 42:1
44:3 46:517 47:5 49:143 50:76 52:12
55:5 56:2 57:27 58:766 59:481 60:389
61:1021 62:851 63:1916 64:3729 65:2329 66:4059
67:1754 68:1005 69:2872 70:716 71:392 72:1989
73:1 74:2308 75:293 76:330 77:852 78:688
79:439 80:1019 81:764 82:513 83:472 84:452
85:1050 86:512 87:740 88:359 89:1567 90:159
91:3436 92:493 93:1043 94:1155 95:781 96:417
97:249 98:756 99:33 101:24 107:3 108:81
109:857 110:469 111:686 112:305 113:350 114:438
115:626 116:871 117:667 118:639 119:1019 120:239
121:678 122:1603 123:1040 124:1251 125:1212 128:194
129:151 130:168 131:559 132:103 133:20 134:210
135:49 136:213 137:144 138:293 139:118 140:467
141:198 142:347 143:371 144:481 145:51 146:418
147:192 148:609 149:272 150:150 151:231 152:300
153:175 154:2 155:346 156:171 157:312 158:128
159:369 160:313 161:195 162:276 163:107 164:484
165:336 166:481 167:422 168:732 169:149 170:741
171:66 172:1 173:1269 174:516 175:312 176:1
177:4 178:761 180:764 182:387 183:247 184:207
186:963 187:798 188:910 189:1023 190:4422 192:5727
193:4774 194:3459 195:2917 196:1027 197:3 198:3472
199:3715 200:5554 201:1575 202:8021 203:8315 204:4025
205:2326 206:2436 207:2886 208:3875 209:3464 210:2548
211:1322 212:1858 213:1627 214:746 215:62 216:4806
217:1490 218:513 219:372 220:1186 221:422 222:316
223:89

End of report
_______________________________________________
bgp-stats mailing list
bgp-stats@lists.apnic.net
http://mailman.apnic.net/mailman/listinfo/bgp-stats

[bgp-stats] Routing Table Report - Japan view

* BGP Routing Table Analysis Reports *
Routing Table Report 04:00 +10GMT Sun 30 Jan, 2011

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

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

BGP routing table entries examined: 340627
Prefixes after maximum aggregation: 154682
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 169357
Total ASes present in the Internet Routing Table: 35701
Prefixes per ASN: 9.54
Origin-only ASes present in the Internet Routing Table: 30778
Origin ASes announcing only one prefix: 14939
Transit ASes present in the Internet Routing Table: 4923
Transit-only ASes present in the Internet Routing Table: 118
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: 316
Unregistered ASNs in the Routing Table: 125
Number of 32-bit ASNs allocated by the RIRs: 1059
Prefixes from 32-bit ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 213
Number of addresses announced to Internet: 2348930496
Equivalent to 140 /8s, 1 /16s and 213 /24s
Percentage of available address space announced: 63.4
Percentage of allocated address space announced: 65.4
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: 139564

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

Prefixes being announced by APNIC Region ASes: 85037
Total APNIC prefixes after maximum aggregation: 28808
APNIC Deaggregation factor: 2.95
Prefixes being announced from the APNIC address blocks: 81817
Unique aggregates announced from the APNIC address blocks: 35573
APNIC Region origin ASes present in the Internet Routing Table: 4313
APNIC Prefixes per ASN: 18.97
APNIC Region origin ASes announcing only one prefix: 1215
APNIC Region transit ASes present in the Internet Routing Table: 691
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 586535968
Equivalent to 34 /8s, 245 /16s and 212 /24s
Percentage of available APNIC address space announced: 79.5

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

Prefixes being announced by ARIN Region ASes: 138050
Total ARIN prefixes after maximum aggregation: 70689
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 109004
Unique aggregates announced from the ARIN address blocks: 44516
ARIN Region origin ASes present in the Internet Routing Table: 14151
ARIN Prefixes per ASN: 7.70
ARIN Region origin ASes announcing only one prefix: 5402
ARIN Region transit ASes present in the Internet Routing Table: 1470
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 751610752
Equivalent to 44 /8s, 204 /16s and 171 /24s
Percentage of available ARIN address space announced: 63.1

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

Prefixes being announced by RIPE Region ASes: 81055
Total RIPE prefixes after maximum aggregation: 46157
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 74429
Unique aggregates announced from the RIPE address blocks: 48349
RIPE Region origin ASes present in the Internet Routing Table: 15231
RIPE Prefixes per ASN: 4.89
RIPE Region origin ASes announcing only one prefix: 7770
RIPE Region transit ASes present in the Internet Routing Table: 2369
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 456967232
Equivalent to 27 /8s, 60 /16s and 196 /24s
Percentage of available RIPE address space announced: 75.7

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

Prefixes being announced by LACNIC Region ASes: 31602
Total LACNIC prefixes after maximum aggregation: 7246
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 30361
Unique aggregates announced from the LACNIC address blocks: 15815
LACNIC Region origin ASes present in the Internet Routing Table: 1420
LACNIC Prefixes per ASN: 21.38
LACNIC Region origin ASes announcing only one prefix: 427
LACNIC Region transit ASes present in the Internet Routing Table: 245
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 80227072
Equivalent to 4 /8s, 200 /16s and 43 /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: 4659
Total AfriNIC prefixes after maximum aggregation: 1659
AfriNIC Deaggregation factor: 2.81
Prefixes being announced from the AfriNIC address blocks: 3476
Unique aggregates announced from the AfriNIC address blocks: 1596
AfriNIC Region origin ASes present in the Internet Routing Table: 406
AfriNIC Prefixes per ASN: 8.56
AfriNIC Region origin ASes announcing only one prefix: 125
AfriNIC Region transit ASes present in the Internet Routing Table: 91
Average AfriNIC Region AS path length visible: 5.2
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 18331136
Equivalent to 1 /8s, 23 /16s and 182 /24s
Percentage of available AfriNIC address space announced: 36.4

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 1915 9485 526 Korea Telecom (KIX)
7545 1594 301 82 TPG Internet Pty Ltd
4755 1402 637 160 TATA Communications formerly
17974 1391 467 27 PT TELEKOMUNIKASI INDONESIA
24560 1094 317 180 Bharti Airtel Ltd., Telemedia
9583 1044 76 487 Sify Limited
4808 1028 2108 287 CNCGROUP IP network: China169
17488 948 161 102 Hathway IP Over Cable Interne
18101 925 117 142 Reliance Infocom Ltd Internet
9829 878 758 48 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 3709 3855 265 bellsouth.net, inc.
4323 2635 1109 404 Time Warner Telecom
19262 1841 4943 285 Verizon Global Networks
1785 1787 697 133 PaeTec Communications, Inc.
20115 1521 1531 642 Charter Communications
6478 1483 292 54 AT&T Worldnet Services
7018 1359 6674 877 AT&T WorldNet Services
2386 1297 553 933 AT&T Data Communications Serv
22773 1275 2865 78 Cox Communications, Inc.
11492 1269 235 74 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 514 1764 319 UPC Distribution Services
9198 465 266 14 Kazakhtelecom Data Network Ad
34984 458 97 137 BILISIM TELEKOM
3292 447 2011 390 TDC Tele Danmark
8866 438 133 23 Bulgarian Telecommunication C
12479 414 577 6 Uni2 Autonomous System
3320 403 7619 352 Deutsche Telekom AG
8551 402 353 46 Bezeq International
702 396 1816 309 UUNET - Commercial IP service
20940 392 89 303 Akamai Technologies European

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 252 165 TVCABLE BOGOTA
8151 1329 2629 359 UniNet S.A. de C.V.
28573 1245 961 82 NET Servicos de Comunicao S.A
6503 1149 355 78 AVANTEL, S.A.
7303 889 461 115 Telecom Argentina Stet-France
14420 614 55 90 CORPORACION NACIONAL DE TELEC
22047 566 310 15 VTR PUNTO NET S.A.
3816 525 222 99 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 456 34 31 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
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 152 438 87 MTN Network Solutions
36874 139 24 6 Cybersmart
29975 131 475 17 Vodacom
37061 108 9 2 One Communications Ltd
15706 87 14 5 Sudatel Internet Exchange Aut
37054 85 5 21 Data Telecom Service

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 3709 3855 265 bellsouth.net, inc.
4323 2635 1109 404 Time Warner Telecom
4766 1915 9485 526 Korea Telecom (KIX)
19262 1841 4943 285 Verizon Global Networks
1785 1787 697 133 PaeTec Communications, Inc.
7545 1594 301 82 TPG Internet Pty Ltd
20115 1521 1531 642 Charter Communications
6478 1483 292 54 AT&T Worldnet Services
4755 1402 637 160 TATA Communications formerly
17974 1391 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 2635 2231 Time Warner Telecom
1785 1787 1654 PaeTec Communications, Inc.
19262 1841 1556 Verizon Global Networks
7545 1594 1512 TPG Internet Pty Ltd
6478 1483 1429 AT&T Worldnet Services
4766 1915 1389 Korea Telecom (KIX)
17974 1391 1364 PT TELEKOMUNIKASI INDONESIA
4755 1402 1242 TATA Communications formerly
22773 1275 1197 Cox Communications, Inc.
11492 1269 1195 Cable One

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

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

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 /9:10 /10:26 /11:71 /12:214
/13:440 /14:765 /15:1358 /16:11464 /17:5582 /18:9212
/19:18756 /20:24201 /21:24568 /22:32310 /23:30982 /24:177844
/25:984 /26:1057 /27:579 /28:159 /29:16 /30:2
/31:0 /32:8

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 1423 2635 Time Warner Telecom
10620 1248 1357 TVCABLE BOGOTA
11492 1225 1269 Cable One
18566 1106 1125 Covad Communications
7011 1065 1168 Citizens Utilities
1785 1059 1787 PaeTec Communications, Inc.
19262 954 1841 Verizon Global Networks
6503 933 1149 AVANTEL, S.A.

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

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

1:167 2:31 4:13 5:1 8:330 12:2031
13:1 14:382 15:15 16:3 17:8 20:9
23:1 24:1468 27:552 32:61 33:5 34:2
36:1 37:1 38:693 40:101 41:1605 42:1
44:3 46:519 47:5 49:143 50:76 52:12
55:5 56:2 57:30 58:870 59:483 60:391
61:1120 62:792 63:1922 64:3759 65:2332 66:4070
67:1757 68:1005 69:2873 70:717 71:392 72:1989
73:1 74:2313 75:293 76:329 77:852 78:692
79:439 80:1019 81:766 82:510 83:470 84:455
85:1049 86:512 87:726 88:359 89:1577 90:159
91:3435 92:493 93:1041 94:1147 95:782 96:422
97:249 98:757 99:33 101:24 107:3 108:81
109:857 110:470 111:695 112:313 113:351 114:495
115:634 116:880 117:672 118:646 119:1027 120:241
121:702 122:1608 123:1051 124:1269 125:1211 128:246
129:157 130:174 131:565 132:110 133:20 134:218
135:49 136:216 137:147 138:293 139:120 140:490
141:198 142:363 143:376 144:486 145:51 146:416
147:194 148:626 149:273 150:151 151:230 152:303
153:175 154:3 155:346 156:174 157:341 158:128
159:377 160:314 161:205 162:277 163:117 164:483
165:338 166:481 167:420 168:739 169:152 170:747
171:66 172:1 173:1270 174:516 175:313 176:1
177:4 178:761 180:774 182:399 183:247 184:207
186:963 187:799 188:910 189:1023 190:4439 192:5776
193:4793 194:3469 195:2931 196:1023 197:3 198:3550
199:3747 200:5580 201:1584 202:8277 203:8430 204:4098
205:2344 206:2533 207:2965 208:3882 209:3494 210:2629
211:1329 212:1852 213:1623 214:751 215:62 216:4828
217:1488 218:526 219:375 220:1202 221:448 222:319
223:92

End of report
_______________________________________________
bgp-stats mailing list
bgp-stats@lists.apnic.net
http://mailman.apnic.net/mailman/listinfo/bgp-stats

Friday, January 28, 2011

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

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sat 29 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: 345799
Prefixes after maximum aggregation: 156269
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 169293
Total ASes present in the Internet Routing Table: 35723
Prefixes per ASN: 9.68
Origin-only ASes present in the Internet Routing Table: 30794
Origin ASes announcing only one prefix: 14888
Transit ASes present in the Internet Routing Table: 4929
Transit-only ASes present in the Internet Routing Table: 115
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: 396
Unregistered ASNs in the Routing Table: 152
Number of 32-bit ASNs allocated by the RIRs: 1051
Prefixes from 32-bit ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 75
Prefixes being announced from unallocated address space: 221
Number of addresses announced to Internet: 2349289087
Equivalent to 140 /8s, 7 /16s and 78 /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: 141720

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

Prefixes being announced by APNIC Region ASes: 83677
Total APNIC prefixes after maximum aggregation: 28030
APNIC Deaggregation factor: 2.99
Prefixes being announced from the APNIC address blocks: 80587
Unique aggregates announced from the APNIC address blocks: 35580
APNIC Region origin ASes present in the Internet Routing Table: 4294
APNIC Prefixes per ASN: 18.77
APNIC Region origin ASes announcing only one prefix: 1224
APNIC Region transit ASes present in the Internet Routing Table: 681
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 586546882
Equivalent to 34 /8s, 245 /16s and 254 /24s
Percentage of available APNIC address space announced: 79.5

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

Prefixes being announced by ARIN Region ASes: 141239
Total ARIN prefixes after maximum aggregation: 72745
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 111845
Unique aggregates announced from the ARIN address blocks: 44421
ARIN Region origin ASes present in the Internet Routing Table: 14163
ARIN Prefixes per ASN: 7.90
ARIN Region origin ASes announcing only one prefix: 5378
ARIN Region transit ASes present in the Internet Routing Table: 1464
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 27
Number of ARIN addresses announced to Internet: 751663753
Equivalent to 44 /8s, 205 /16s and 122 /24s
Percentage of available ARIN address space announced: 63.1

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

Prefixes being announced by RIPE Region ASes: 84280
Total RIPE prefixes after maximum aggregation: 46449
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 76850
Unique aggregates announced from the RIPE address blocks: 48293
RIPE Region origin ASes present in the Internet Routing Table: 15257
RIPE Prefixes per ASN: 5.04
RIPE Region origin ASes announcing only one prefix: 7729
RIPE Region transit ASes present in the Internet Routing Table: 2387
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 457047817
Equivalent to 27 /8s, 61 /16s and 255 /24s
Percentage of available RIPE address space announced: 75.7

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

Prefixes being announced by LACNIC Region ASes: 31647
Total LACNIC prefixes after maximum aggregation: 7255
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 30401
Unique aggregates announced from the LACNIC address blocks: 15769
LACNIC Region origin ASes present in the Internet Routing Table: 1426
LACNIC Prefixes per ASN: 21.32
LACNIC Region origin ASes announcing only one prefix: 434
LACNIC Region transit ASes present in the Internet Routing Table: 248
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 23
Number of LACNIC addresses announced to Internet: 80240012
Equivalent to 4 /8s, 200 /16s and 93 /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: 4694
Total AfriNIC prefixes after maximum aggregation: 1668
AfriNIC Deaggregation factor: 2.81
Prefixes being announced from the AfriNIC address blocks: 3499
Unique aggregates announced from the AfriNIC address blocks: 1577
AfriNIC Region origin ASes present in the Internet Routing Table: 406
AfriNIC Prefixes per ASN: 8.62
AfriNIC Region origin ASes announcing only one prefix: 123
AfriNIC Region transit ASes present in the Internet Routing Table: 92
Average AfriNIC Region AS path length visible: 4.2
Max AfriNIC Region AS path length visible: 33
Number of AfriNIC addresses announced to Internet: 18344960
Equivalent to 1 /8s, 23 /16s and 236 /24s
Percentage of available AfriNIC address space announced: 36.4

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 1580 299 80 TPG Internet Pty Ltd
4755 1400 632 158 Videsh Sanchar Nigam Ltd. Aut
17974 1396 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 921 116 140 Reliance Infocom Ltd Internet
4808 919 1970 260 CNCGROUP IP network: China169
9829 888 758 52 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 2635 1109 404 Time Warner Telecom
19262 1841 4927 285 Verizon Global Networks
1785 1788 697 134 AppliedTheory Corporation
20115 1571 1535 642 Charter Communications
6478 1476 291 56 AT&T Worldnet Services
7018 1364 6683 884 AT&T WorldNet Services
2386 1294 554 933 AT&T Data Communications Serv
22773 1274 2864 77 Cox Communications, Inc.
11492 1269 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 413 577 6 Uni2 Autonomous System
8551 404 355 38 Bezeq International
3320 402 7618 351 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 1335 2614 361 Uninet S.A. de C.V.
28573 1244 961 82 Types of queries are: POCs, o
6503 1150 355 78 AVANTEL, S.A.
7303 888 461 116 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 530 222 99 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
27947 460 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 131 475 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 2635 1109 404 Time Warner Telecom
19262 1841 4927 285 Verizon Global Networks
1785 1788 697 134 AppliedTheory Corporation
4766 1760 9484 516 Korea Telecom (KIX)
7545 1580 299 80 TPG Internet Pty Ltd
20115 1571 1535 642 Charter Communications
6478 1476 291 56 AT&T Worldnet Services
4755 1400 632 158 Videsh Sanchar Nigam Ltd. Aut
17974 1396 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 2635 2231 Time Warner Telecom
1785 1788 1654 AppliedTheory Corporation
19262 1841 1556 Verizon Global Networks
7545 1580 1500 TPG Internet Pty Ltd
6478 1476 1420 AT&T Worldnet Services
17974 1396 1369 PT TELEKOMUNIKASI INDONESIA
4766 1760 1244 Korea Telecom (KIX)
4755 1400 1242 Videsh Sanchar Nigam Ltd. Aut
22773 1274 1197 Cox Communications, Inc.
11492 1269 1195 Cable One

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)
-----------------------------------------------------------

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 /8:19 /9:10 /10:26 /11:72 /12:215
/13:440 /14:770 /15:1384 /16:11574 /17:5813 /18:9522
/19:19232 /20:24871 /21:24896 /22:32712 /23:31579 /24:179644
/25:365 /26:350 /27:200 /28:377 /29:309 /30:719
/31:47 /32:653

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

ASN No of nets Total ann. Description
6389 2288 3709 bellsouth.net, inc.
6478 1430 1476 AT&T Worldnet Services
4323 1423 2635 Time Warner Telecom
10620 1248 1357 TVCABLE BOGOTA
11492 1225 1269 Cable One
18566 1106 1125 Covad Communications
7011 1065 1168 Citizens Utilities
1785 1059 1788 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 2:46 4:17 5:1 8:334 12:2032
13:1 14:381 15:15 16:3 17:8 20:9
23:1 24:1494 27:552 32:128 33:5 34:2
36:1 37:1 38:692 40:101 41:1619 42:1
44:3 46:517 47:5 49:144 50:74 52:12
55:7 56:2 57:41 58:871 59:485 60:391
61:1122 62:802 63:1930 64:3780 65:2336 66:4091
67:1789 68:1160 69:2977 70:758 71:397 72:2035
73:3 74:2366 75:305 76:338 77:860 78:692
79:448 80:1031 81:777 82:518 83:479 84:475
85:1072 86:516 87:761 88:364 89:1619 90:159
91:3440 92:494 93:1044 94:1175 95:788 96:422
97:249 98:763 99:33 101:24 107:3 108:81
109:873 110:470 111:695 112:313 113:351 114:495
115:635 116:894 117:668 118:646 119:1027 120:244
121:704 122:1609 123:1052 124:1291 125:1214 128:248
129:160 130:174 131:567 132:110 133:20 134:220
135:49 136:216 137:147 138:294 139:133 140:490
141:198 142:360 143:376 144:488 145:51 146:426
147:205 148:627 149:273 150:151 151:230 152:303
153:175 154:3 155:345 156:174 157:342 158:128
159:377 160:314 161:205 162:277 163:117 164:485
165:355 166:481 167:422 168:738 169:153 170:747
171:66 172:1 173:1277 174:520 175:311 176:1
177:4 178:763 180:767 182:403 183:251 184:239
186:957 187:796 188:911 189:1012 190:4443 192:5819
193:4822 194:3519 195:3076 196:1033 197:3 198:3565
199:3757 200:5581 201:1572 202:8422 203:8462 204:4098
205:2350 206:2600 207:2970 208:3900 209:3497 210:2637
211:1331 212:1902 213:1673 214:752 215:62 216:4853
217:1497 218:529 219:375 220:1205 221:450 222:343
223:93

End of report
_______________________________________________
bgp-stats mailing list
bgp-stats@lists.apnic.net
http://mailman.apnic.net/mailman/listinfo/bgp-stats