ASN Lookup Tool

CSD Network Services Ltd csd.co GB GB 5 Routes

AS Data

AS203851

AS203851CSD Network Services Ltd

AS Number 203851
AS Name as_csd001
Organization CSD Network Services Ltd (org-cl296-ripe)
Country GB
Website csd.co
Number of IPv4 Routes 5
Number of IPv6 Routes 0
ASN type ISP
Allocation Status ASSIGNED
Registry RIPE
Date Allocated 2015-10-20

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Use ASN data for AS203851 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route # IPs
185.87.215.0/24 256
185.87.214.0/24 256
185.154.50.0/24 256
185.87.212.0/24 256
185.87.213.0/24 256

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 'AS203113 - AS203887'

as-block:       AS203113 - AS203887
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:        2024-11-12T15:22:00Z
last-modified:  2024-11-12T15:22:00Z
source:         RIPE

% Information related to 'AS203851'

% Abuse contact for 'AS203851' is 'ripe@csd.co'

aut-num:        AS203851
as-name:        as_csd001
org:            ORG-CL296-RIPE
import:         from AS174 accept ANY
export:         to AS174 announce AS203851
import:         from AS3257 accept ANY
export:         to AS3257 announce AS203851
admin-c:        TA5062-RIPE
tech-c:         TA5062-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         toma1-mnt
created:        2015-10-20T10:02:33Z
last-modified:  2018-09-04T11:41:01Z
source:         RIPE

organisation:   ORG-CL296-RIPE
org-name:       CSD Network Services Ltd
country:        GB
reg-nr:         04345848
org-type:       LIR
address:        10 New Road, Rayne
address:        CM77 6TG
address:        Braintree
address:        UNITED KINGDOM
phone:          +441376340240
fax-no:         +441376388032
abuse-c:        AC28408-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        toma1-mnt
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         toma1-mnt
created:        2015-02-10T16:29:05Z
last-modified:  2026-05-13T07:36:03Z
source:         RIPE # Filtered

person:         Tom Agutter
address:        CSD Network Services Ltd, 10 New Road, Rayne, Braintree, Essex, CM77 6TG. UK
phone:          +44 1376 340240
nic-hdl:        TA5062-RIPE
mnt-by:         toma1-mnt
created:        2015-02-11T15:20:00Z
last-modified:  2017-09-14T09:58:20Z
source:         RIPE # Filtered

% This query was served by the RIPE Database Query Service version 1.123 (BUSA)

Parsed Whois Response

Peers

AS Number Description Country
AS62167 Tismi BV NL
AS12552 GlobalConnect AB SE
AS28792 Public Internet Ltd GB
AS51907 Kanton Zug CH
AS7195 EDGEUNO S.A.S CO
AS64049 Reliance Jio Infocomm Pte Ltd Singapore SG
AS39351 31173 Services AB SE
AS6939 Hurricane Electric LLC US
AS6204 ZET.NET IP Transit RO
AS31742 Sotaconnect Network GB
AS45352 IP ServerOne Solutions Sdn Bhd MY
AS37468 Angola Cables AO
AS271253 LINK BRASIL TELECOMUNICACOES LTDA BR
AS57344 Telehouse EAD BG
AS34288 Kantonsschule Zug CH
AS3170 VeloxServ Communications Ltd GB
AS25160 Vorboss Limited GB
AS51185 MainStreaming SpA IT
AS206735 Novelcomm LP GR
AS16552 Tiggee LLC US
AS210206 Metro Security (GB) PLC GB
AS13237 euNetworks GmbH DE
AS37721 Virtual Technologies & Solutions BF
AS61573 IP TELECOM BR
AS32590 Valve Corporation US
AS29075 IELO-LIAZO SERVICES SAS FR
AS39122 Blacknight Internet Solutions Limited IE
AS12779 IT.Gate S.p.A. IT
AS8801 Rocket Fibre Ltd GB
AS25091 IP Max SA ZZ
AS42473 ANEXIA Internetdienstleistungs GmbH AT
AS6204 INTERKVM HOST SRL RO
AS30844 Liquid Telecommunications Ltd GB
AS1828 Unitas Global US
AS4849 S3 Company Ltd BG
AS3257 GTT Communications Inc. US
AS3741 Dimension Data ZA
AS50300 CustodianDC Limited GB
AS37282 Main one Cable Company Nigeria Limited NG
AS34549 meerfarbig GmbH & Co. KG DE
AS38158 PT. Cyberindo Aditama ID
AS58511 Anycast Global Backbone AU
AS24482 SG.GS SG
AS205900 APC Solutions UK Ltd GB
AS203462 NOVACONN SRL IT
AS48362 Stadtwerke Feldkirch AT
AS14630 Invesco Group Services, Inc. US
AS60171 AFR-IX TELECOM S.A. ES
AS56665 Proximus Luxembourg S.A. LU
AS34177 Celeste SAS FR
AS31742 Sota Solutions Ltd. GB
AS41811 CONVERGENCE (GROUP NETWORKS) LIMITED GB
AS60171 AFR IX TELECOM S.A. ES
AS36236 NetActuate, Inc US
AS18106 Viewqwest Pte Ltd SG
AS204208 Peravix Group LTD GB
AS6424 EDGOO NETWORKS UNIPESSOAL LDA PT
AS16276 OVH SAS FR
AS61049 Exascale Ltd GB
AS48070 DSM GB Limited GB

Upstreams

AS Number Description Country
AS6939 Hurricane Electric LLC US
AS6204 ZET.NET IP Transit RO
AS48362 Stadtwerke Feldkirch AT
AS6057 Administracion Nacional de Telecomunicaciones UY
AS5405 Inter.link GmbH DE
AS174 Cogent Communications, LLC US
AS34177 Celeste SAS FR
AS37468 Angola Cables AO
AS25091 IP Max SA ZZ
AS60171 AFR IX TELECOM S.A. ES
AS35280 F5 Networks SARL FR
AS9044 BSE Software GmbH CH
AS137409 GSL Networks Pty LTD AU
AS34549 meerfarbig GmbH & Co. KG DE
AS37282 Main one Cable Company Nigeria Limited NG

Downstreams

AS Number Description Country
AS205900 APC Solutions UK Ltd GB
AS210206 Metro Security GB PLC GB

Legacy Routes

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Frequently Asked Questions

ASN AS203851 is an Autonomous System Number used to identify a network for BGP internet routing.
AS203851 is listed under CSD Network Services 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.