29120 ROWEMAW-AS - Mayer Brown International LLP, GB
Adjacency: 2 Upstream: 2 Downstream: 0
Upstream Adjacent AS list
AS174 COGENT-174 - Cogent Communications, LLC, US
AS3356 LEVEL3 - Level 3 Parent, LLC, US
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 16950 AS29120 ORIGIN Originate: 4096 /20.00 Transit: 0 /0.00 ROWEMAW-AS - Mayer Brown International LLP, GB
Aggregation Suggestions
Filter: Aggregates, Specifics
This report does not take into account conditions local to each origin AS in terms of policy or traffic engineering requirements, so this is an approximate guideline as to aggregation possibilities.
Rank AS AS Name Current Wthdw Aggte Annce Redctn % 7324 AS29120 ROWEMAW-AS - Mayer Brown International LLP, G 10 8 2 4 6 60.00% Prefix AS Path Aggregation Suggestion 143.58.8.0/22 4777 2516 3356 29120 143.58.8.0/22 4608 7575 3356 29120 + Announce - aggregate of 143.58.8.0/23 (4608 7575 3356 29120) and 143.58.10.0/23 (4608 7575 3356 29120) 143.58.8.0/24 4608 7575 3356 29120 - Withdrawn - aggregated with 143.58.9.0/24 (4608 7575 3356 29120) 143.58.9.0/24 4608 7575 3356 29120 - Withdrawn - aggregated with 143.58.8.0/24 (4608 7575 3356 29120) 143.58.10.0/24 4608 7575 3356 29120 - Withdrawn - aggregated with 143.58.11.0/24 (4608 7575 3356 29120) 143.58.11.0/24 4608 7575 3356 29120 - Withdrawn - aggregated with 143.58.10.0/24 (4608 7575 3356 29120) 143.58.12.0/22 4777 2516 3356 29120 143.58.12.0/22 4777 2516 174 29120 + Announce - aggregate of 143.58.12.0/23 (4777 2516 174 29120) and 143.58.14.0/23 (4777 2516 174 29120) 143.58.12.0/24 4777 2516 174 29120 - Withdrawn - aggregated with 143.58.13.0/24 (4777 2516 174 29120) 143.58.13.0/24 4777 2516 174 29120 - Withdrawn - aggregated with 143.58.12.0/24 (4777 2516 174 29120) 143.58.14.0/24 4777 2516 174 29120 - Withdrawn - aggregated with 143.58.15.0/24 (4777 2516 174 29120) 143.58.15.0/24 4777 2516 174 29120 - Withdrawn - aggregated with 143.58.14.0/24 (4777 2516 174 29120)
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS29120 10 More Specifics 10 Total Advertisements ROWEMAW-AS - Mayer Brown International LLP, GB
143.58.8.0/22 143.58.0.0/18
143.58.8.0/24 143.58.0.0/18
143.58.9.0/24 143.58.0.0/18
143.58.10.0/24 143.58.0.0/18
143.58.11.0/24 143.58.0.0/18
143.58.12.0/22 143.58.0.0/18
143.58.12.0/24 143.58.0.0/18
143.58.13.0/24 143.58.0.0/18
143.58.14.0/24 143.58.0.0/18
143.58.15.0/24 143.58.0.0/18
whois: 402609
IANA has recorded AS29120 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS29120\n % This is the RIPE Database query service.
% The objects are in RPSL format.
%
% The RIPE Database is subject to Terms and Conditions.
% See https://docs.db.ripe.net/terms-conditions.html
% Note: this output has been filtered.
% Information related to 'AS29092 - AS29337'
as-block: AS29092 - AS29337
descr: RIPE NCC ASN block
remarks: These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by: RIPE-NCC-HM-MNT
created: 2018-11-22T15:27:31Z
last-modified: 2018-11-22T15:27:31Z
source: RIPE
% Information related to 'AS29120'
% Abuse contact for 'AS29120' is 'abuse@colt.net'
aut-num: AS29120
as-name: ROWEMAW-AS
org: ORG-MBRM1-RIPE
import: from AS702 action pref=100; accept ANY
import: from AS6656 action pref=100; accept ANY
import: from AS8928 action pref=100; accept ANY
export: to AS8928 announce AS29120
export: to AS702 announce AS29120
export: to AS6656 announce AS29120
tech-c: FN2921-RIPE
status: ASSIGNED
mnt-by: RIPE-NCC-END-MNT
admin-c: FN2921-RIPE
mnt-by: Mayer-Brown-LLP
created: 2003-06-10T13:53:23Z
last-modified: 2020-02-20T17:39:18Z
source: RIPE
sponsoring-org: ORG-CI9-RIPE
organisation: ORG-MBRM1-RIPE
org-name: Mayer Brown International LLP
country: GB
reg-nr: OC303359
org-type: OTHER
address: 11 Pilgrim Street
address: London
address: EC4V 6RW
address: United Kingdom
abuse-c: AR28687-RIPE
mnt-ref: AS6656-MNT
mnt-by: AS6656-MNT
created: 2006-05-25T12:53:15Z
last-modified: 2026-05-13T06:14:24Z
source: RIPE # Filtered
%ERROR:201: access denied for 2401:2000:6660:0:0:0:0:13
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% Queries from your IP address have passed the daily limit of controlled objects.
% Access from your host has been temporarily denied.
% For more information, see
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% This query was served by the RIPE Database Query Service version 1.122.1 (BUSA)