ASN Lookup Tool

Central Technology Ltd ct.uk GB GB 6 Routes

AS Data

AS57653

AS57653Central Technology Ltd

AS Number 57653
AS Name CTL-AS
Organization Central Technology Ltd(org-ctl23-ripe)
Country GB
Website ct.uk
Number of IPv4 Routes 5
Number of IPv6 Routes 1
ASN type BUSINESS
Allocation Status ASSIGNED
Registry RIPE
Date Allocated 2011-12-29

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Use ASN data for AS57653 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route # IPs
109.69.232.0/21 2048
94.156.186.0/24 256
94.156.96.0/24 256
185.191.84.0/22 1024
2a00:1ba8::/32 ~79×10²⁷
45.149.241.0/24 256

Raw Whois Response

% 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.
%       To receive output for a database update, use the "-B" flag.

% Information related to 'AS57370 - AS57973'

as-block:       AS57370 - AS57973
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:        2025-04-24T14:15:44Z
last-modified:  2025-04-24T14:15:44Z
source:         RIPE

% Information related to 'AS57653'

% Abuse contact for 'AS57653' is 'noc@ct.uk'

aut-num:        AS57653
as-name:        CTL-AS
org:            ORG-CTL23-RIPE
import:         from AS39326 accept ANY
import:         from AS31727 accept ANY
export:         to AS39326 announce AS57653
export:         to AS31727 announce AS57653
admin-c:        CB3871
tech-c:         CB3871
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         MNT-CTL
created:        2011-12-29T10:26:42Z
last-modified:  2017-11-15T12:23:33Z
source:         RIPE

organisation:   ORG-CTL23-RIPE
org-name:       Central Technology Ltd
country:        GB
org-type:       LIR
address:        Quantum Point
                Sheepbridge Lane
address:        S41 9RX
address:        Chesterfield
address:        UNITED KINGDOM
phone:          +448454138888
fax-no:         +448454138877
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        MNT-CTL
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         MNT-CTL
abuse-c:        CTLA1-RIPE
created:        2009-10-14T12:25:19Z
last-modified:  2020-12-16T13:27:35Z
source:         RIPE # Filtered

person:         Christopher Barr
address:        Central Technology Ltd, Quantum Point, Sheepbridge Lane, Chesterfield, Derbyshire, S41 9RX
phone:          +441246266130
nic-hdl:        CB3871
mnt-by:         MNT-CTL
created:        2009-10-15T13:10:58Z
last-modified:  2024-02-02T15:07:18Z
source:         RIPE # Filtered

% This query was served by the RIPE Database Query Service version 1.121.1 (ABERDEEN)

Parsed Whois Response

Peers

AS Number Description Country
AS12552 GlobalConnect AB SE
AS28792 Public Internet Ltd GB
AS31727 Node4 Limited GB
AS35266 EX Networks Limited GB
AS60602 Inovare-Prim SRL MD
AS38880 Micron21 Datacentre Pty Ltd AU
AS14537 Continent 8 LLC US
AS198150 SIACOM JSC GE
AS45352 IP ServerOne Solutions Sdn Bhd MY
AS267256 ONETIS TECNOLOGIA LTDA BR

Upstreams

AS Number Description Country
AS12552 GlobalConnect AB SE
AS7195 EDGEUNO S.A.S CO
AS34927 iFog GmbH CH
AS39351 31173 Services AB SE
AS6939 Hurricane Electric LLC US
AS25091 IP Max SA CH
AS6204 ZET.NET IP Transit RO
AS48362 Stadtwerke Feldkirch AT
AS2914 NTT America, Inc. US
AS33891 Core Backbone GmbH DE

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Frequently Asked Questions

ASN AS57653 is an Autonomous System Number used to identify a network for BGP internet routing.
AS57653 is listed under Central Technology Ltd.
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.