AS42543 -

OpenMarket Limited

AS42543 OpenMarket Limited


United Kingdom





IP Addresses




Network Speed

We don't currently have any network speed data for this network.

Hosted Domains

There are no domains currently hosted on this ASN.

Whois Details

as-block:       AS42383 - AS45055
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:        2018-11-22T15:27:34Z
last-modified:  2018-11-22T15:27:34Z
source:         RIPE

aut-num:        AS42543
as-name:        OpenMarket
org:            ORG-MTL3-RIPE
import:         from AS174 accept ANY
export:         to AS174 announce AS42543
import:         from AS3356 accept ANY
export:         to AS3356 announce AS42543
admin-c:        CW867-RIPE
tech-c:         CW867-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         MXTELECOM-MNT
created:        2015-08-19T08:17:35Z
last-modified:  2018-09-04T11:38:55Z
source:         RIPE

organisation:   ORG-MTL3-RIPE
org-name:       OpenMarket Limited
org-type:       LIR
address:        15th Floor, 389 Chiswick High Road
address:        W4 4AJ
address:        London
address:        UNITED KINGDOM
phone:          +448456667778
fax-no:         +442030955080
admin-c:        CW867-RIPE
admin-c:        OO1170-RIPE
mnt-ref:        MXTELECOM-MNT
mnt-ref:        RIPE-NCC-HM-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         MXTELECOM-MNT
abuse-c:        OO1170-RIPE
created:        2004-04-17T12:18:35Z
last-modified:  2017-08-31T23:40:02Z
source:         RIPE

person:         Chris Wilson
address:        OpenMarket Ltd 389 Chiswick High Road Chiswick London, W4 4AL UK
phone:          +44 845 666 7778
nic-hdl:        CW867-RIPE
created:        2004-04-15T14:23:29Z
last-modified:  2012-04-10T18:06:20Z
source:         RIPE
mnt-by:         MXTELECOM-MNT

IP Address Ranges

Netblock Description Num IPs OpenMarket Limited 2,048

There are no known IPv6 addresses belonging to this network

Network Speed

We don't currently have any network speed data for this network.

Hosted Domains

There are no domains currently hosted on this ASN.


There are 46 peers for this ASN.

SURFnet bv AS1103
IT.Gate S.p.A. AS12779
euNetworks GmbH AS13237
VMHaus Limited AS136620 SA AS15547
Cogent Communications AS174
Viewqwest Pte Ltd AS18106
Closed Joint Stock Company TransTeleCom AS20485
Broadband Hosting B.V AS20562


There are 2 upstreams for this ASN.

Cogent Communications AS174
Level 3 Parent, LLC AS3356


There are no downstreams for this ASN.

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Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

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Find out more about AS42543 at robtex.

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