42353 SIMWOOD - Simwood eSMS Limited, GB
Adjacency: 2 Upstream: 2 Downstream: 0
Upstream Adjacent AS list
AS2914 NTT-DATA-2914 - NTT America, Inc., US
AS174 COGENT-174 - Cogent Communications, LLC, US
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 14117 AS42353 ORIGIN Originate: 5888 /19.48 Transit: 0 /0.00 SIMWOOD - Simwood eSMS Limited, 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 % 7459 AS42353 SIMWOOD - Simwood eSMS Limited, GB 14 7 1 8 6 42.86% Prefix AS Path Aggregation Suggestion 91.233.5.0/24 4608 7575 2914 42353 178.22.136.0/21 4608 7575 2914 42353 42353 42353 42353 42353 42353 178.22.136.0/23 4608 7575 2914 42353 178.22.136.0/24 4608 7575 2914 42353 - Withdrawn - matching aggregate 178.22.136.0/23 4608 7575 2914 42353 178.22.137.0/24 4608 7575 2914 42353 - Withdrawn - matching aggregate 178.22.136.0/23 4608 7575 2914 42353 178.22.139.0/24 4608 7575 2914 42353 178.22.140.0/22 4608 7575 2914 42353 + Announce - aggregate of 178.22.140.0/23 (4608 7575 2914 42353) and 178.22.142.0/23 (4608 7575 2914 42353) 178.22.140.0/23 4608 7575 2914 42353 - Withdrawn - aggregated with 178.22.142.0/23 (4608 7575 2914 42353) 178.22.140.0/24 4608 7575 2914 42353 - Withdrawn - matching aggregate 178.22.140.0/23 4608 7575 2914 42353 178.22.141.0/24 4608 7575 2914 42353 - Withdrawn - matching aggregate 178.22.140.0/23 4608 7575 2914 42353 178.22.142.0/24 4608 7575 2914 42353 - Withdrawn - aggregated with 178.22.143.0/24 (4608 7575 2914 42353) 178.22.143.0/24 4608 7575 2914 42353 - Withdrawn - aggregated with 178.22.142.0/24 (4608 7575 2914 42353) 185.63.140.0/24 4608 7575 2914 42353 185.63.142.0/24 4608 7575 2914 42353 194.0.210.0/24 4608 7575 2914 42353
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS42353 11 More Specifics 14 Total Advertisements SIMWOOD - Simwood eSMS Limited, GB
178.22.136.0/23 178.22.136.0/21
178.22.136.0/24 178.22.136.0/21
178.22.137.0/24 178.22.136.0/21
178.22.139.0/24 178.22.136.0/21
178.22.140.0/23 178.22.136.0/21
178.22.140.0/24 178.22.136.0/21
178.22.141.0/24 178.22.136.0/21
178.22.142.0/24 178.22.136.0/21
178.22.143.0/24 178.22.136.0/21
185.63.140.0/24 185.63.140.0/22
185.63.142.0/24 185.63.140.0/22
whois: 402603
IANA has recorded AS42353 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS42353\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 'AS42173 - AS42381'
as-block: AS42173 - AS42381
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: 2024-07-22T14:14:32Z
last-modified: 2024-07-22T14:14:32Z
source: RIPE
% Information related to 'AS42353'
% Abuse contact for 'AS42353' is 'noc@simwood.com'
aut-num: AS42353
as-name: SIMWOOD
org: ORG-SeL11-RIPE
descr: Simwood eSMS Limited
remarks: +-------------------------------------------------------+---------+
remarks: | Simwood eSMS Limited | AS42353 |
remarks: +-------------------------------------------------------+---------+
remarks: | |
remarks: | Sales: team@simwood.com |
remarks: | Abuse Contact: abuse@simwood.com |
remarks: | Peering Requests: peering@simwood.com |
remarks: | |
remarks: | |
remarks: +-----------------------------------------------------------------+
remarks: | IP Transit |
remarks: +-----------------------------------------------------------------+
import: from AS3257 accept ANY
export: to AS3257 announce AS-SIMWOOD
import: from AS1299 accept ANY
export: to AS1299 announce AS-SIMWOOD
import: from AS2914 accept ANY
export: to AS2914 announce AS-SIMWOOD
import: from AS174 accept ANY
export: to AS174 announce AS-SIMWOOD
remarks: +-----------------------------------------------------------------+
remarks: | Peering |
remarks: +-----------------------------------------------------------------+
remarks: | Simwood has a generally open policy for both IPv4 and IPv6. Our |
remarks: | network is dual stack and no tunnels are in use at any point. |
remarks: | |
remarks: | We are present at the following exchanges: |
remarks: | |
remarks: | LINX |
remarks: | LoNAP |
remarks: | IXManchester |
remarks: | |
remarks: | We will also peer privately in any of our sites where traffic |
remarks: | justifies it. |
remarks: | |
remarks: | See http://as42353.peeringdb.com for details. |
remarks: | |
remarks: | Peer import/export information is not shown here. |
remarks: | |
remarks: +-----------------------------------------------------------------+
remarks: | AS42353 Downstream Customers |
remarks: +-----------------------------------------------------------------+
import: from AS198426 accept AS198426
export: to AS198426 announce ANY
import: from AS21260 accept AS-POSITIVE
export: to AS21260 announce ANY
import: from AS212880 accept AS-KRYPTON-IT
export: to AS212880 announce ANY
admin-c: SW1897-RIPE
tech-c: SW1897-RIPE
status: ASSIGNED
mnt-by: RIPE-NCC-END-MNT
mnt-by: SIMWOOD-MNT
created: 2007-02-07T12:23:46Z
last-modified: 2021-03-05T11:54:30Z
source: RIPE # Filtered
organisation: ORG-SeL11-RIPE
org-name: Simwood eSMS Limited
country: GB
reg-nr: 03379831
org-type: LIR
address: Simwood House, Cube M4 Business Park, Old Gloucester Road
address: BS16 1FX
address: Bristol
address: UNITED KINGDOM
phone: +443301223000
fax-no: +442921202020
abuse-c: AR17901-RIPE
admin-c: SW1897-RIPE
mnt-ref: RIPE-NCC-HM-MNT
mnt-ref: SIMWOOD-MNT
mnt-by: RIPE-NCC-HM-MNT
mnt-by: SIMWOOD-MNT
created: 2010-03-08T14:34:54Z
last-modified: 2026-05-13T07:33:02Z
source: RIPE # Filtered
%ERROR:201: access denied for 2401:2000:6660:0:0:0:0:13
%
% 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
% https://docs.db.ripe.net/FAQ#why-did-i-receive-an-error-201-access-denied
% This query was served by the RIPE Database Query Service version 1.122.1 (SHETLAND)