ASN Lookup Tool

CT1 Technologies Ltd ct1.tech GB GB 5 Routes

AS Data

AS51159

AS51159CT1 Technologies Ltd

AS Number 51159
AS Name THINKSYSTEMSUK-ASN
Organization CT1 Technologies Ltd(org-ctl96-ripe)
Country GB
Website ct1.tech
Number of IPv4 Routes 5
Number of IPv6 Routes 0
ASN type ISP
Allocation Status ASSIGNED
Registry RIPE
Date Allocated 2010-06-10

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Use ASN data for AS51159 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route # IPs
91.228.115.0/24 256
194.187.252.0/24 256
91.142.134.0/24 256
91.239.124.0/23 512
185.62.84.0/22 1024

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 'AS50893 - AS51311'

as-block:       AS50893 - AS51311
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:        2024-12-10T14:54:30Z
last-modified:  2024-12-10T14:54:30Z
source:         RIPE

% Information related to 'AS51159'

% Abuse contact for 'AS51159' is 'abuse@ct1.tech'

aut-num:        AS51159
as-name:        THINKSYSTEMSUK-ASN
org:            ORG-CTL96-RIPE
import:         from AS174 accept ANY
export:         to AS174 announce AS51159
import:         from AS1299 accept ANY
export:         to AS1299 announce AS51159
import:         from AS25973 accept ANY
export:         to AS25973 announce AS51159
import:         from AS3356 accept ANY
export:         to AS3356 announce AS51159
admin-c:        CP15124-RIPE
tech-c:         CP15124-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         lir-uk-ct1technologies-1-MNT
created:        2010-06-10T09:27:13Z
last-modified:  2026-02-27T12:30:19Z
source:         RIPE

organisation:   ORG-CTL96-RIPE
org-name:       CT1 Technologies Ltd
country:        GB
org-type:       LIR
address:        71 New Dover Road
address:        CT1 3DZ
address:        Canterbury
address:        UNITED KINGDOM
phone:          +441227808050
admin-c:        CP15124-RIPE
tech-c:         CP15124-RIPE
abuse-c:        AR79200-RIPE
mnt-ref:        lir-uk-ct1technologies-1-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         lir-uk-ct1technologies-1-MNT
created:        2025-11-26T09:40:20Z
last-modified:  2025-11-26T09:40:20Z
source:         RIPE # Filtered

role:           Cameron Phillips-Jennings
address:        UNITED KINGDOM
address:        Canterbury
address:        CT1 3DZ
address:        71 New Dover Road
phone:          +441227808050
nic-hdl:        CP15124-RIPE
mnt-by:         lir-uk-ct1technologies-1-MNT
created:        2025-11-26T09:40:20Z
last-modified:  2025-11-26T09:40:20Z
source:         RIPE # Filtered

% This query was served by the RIPE Database Query Service version 1.121.2 (ABERDEEN)

Parsed Whois Response

Peers

AS Number Description Country
AS1299 Arelion Sweden AB SE
AS25973 PacketExchange, Inc US
AS60800 Netwise Hosting Ltd GB
AS3356 Level 3 Parent, LLC US
AS174 Cogent Communications, LLC US

Upstreams

AS Number Description Country
AS60800 Netwise Hosting Ltd GB

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Frequently Asked Questions

ASN AS51159 is an Autonomous System Number used to identify a network for BGP internet routing.
AS51159 is listed under CT1 Technologies 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.