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AS204945 Celebrus Technologies plc

Q: Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

ASN Lookup Tool

Celebrus Technologies plc d4t4solutions.com

GB 2 Routes

AS Data

AS204945

AS204945 – Celebrus Technologies plc

AS Number	204945
AS Name	D4T4
Organization	Celebrus Technologies plc (org-isp7-ripe)
Country	GB
Website	d4t4solutions.com
Number of IPv4 Routes	2
Number of IPv6 Routes	0
ASN type	BUSINESS
Allocation Status	ASSIGNED
Registry	RIPE
Date Allocated	2017-12-01

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Use ASN data for AS204945 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
185.210.116.0/23	AS204945	Celebrus Technologies plc	Celebrus Technologies plc	512
185.210.116.0/24	AS204945	Celebrus Technologies plc	Celebrus Technologies plc	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 'AS203940 - AS205662'

as-block:       AS203940 - AS205662
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:        2026-03-05T15:29:31Z
last-modified:  2026-03-05T15:29:31Z
source:         RIPE

% Information related to 'AS204945'

% Abuse contact for 'AS204945' is 'abuse@d4t4solutions.com'

aut-num:        AS204945
as-name:        D4T4
org:            ORG-ISp7-RIPE
import:         from AS51043 accept ANY
export:         to AS51043 announce AS204945
import:         from AS13037 accept ANY
export:         to AS13037 announce AS204945
admin-c:        DM15329-RIPE
tech-c:         DM15329-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         D4T4-RIPE-MNT
created:        2017-12-01T15:58:27Z
last-modified:  2023-03-29T17:08:45Z
source:         RIPE

organisation:   ORG-ISp7-RIPE
org-name:       Celebrus Technologies plc
country:        GB
org-type:       LIR
address:        Elmbrook House, 18-19 Station Road
address:        TW16 6SB
address:        Sunbury-on-Thames
address:        UNITED KINGDOM
phone:          +441932893333
abuse-c:        RDSA4-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        D4T4-RIPE-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         D4T4-RIPE-MNT
created:        2011-05-17T08:35:59Z
last-modified:  2025-12-11T11:53:29Z
source:         RIPE # Filtered

person:         David Messenger
address:        Windmill House, 91-93 Windmill Road Sunbury-on-Thames, TW16 7EF
phone:          +44 (0)1932 893333
nic-hdl:        DM15329-RIPE
mnt-by:         David_Messenger_D4T4
created:        2017-06-27T08:26:52Z
last-modified:  2017-06-27T08:26:52Z
source:         RIPE

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

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.ripe.net",
  "as_blocks" : [ {
    "as_block" : "AS203940 - AS205662",
    "description" : [ "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" ],
    "date_created" : "2026-03-05",
    "date_updated" : "2026-03-05",
    "source" : "RIPE"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS204945",
    "as_name" : "D4T4",
    "status" : "ASSIGNED",
    "import" : [ "from AS51043 accept ANY", "from AS13037 accept ANY" ],
    "export" : [ "to AS51043 announce AS204945", "to AS13037 announce AS204945" ],
    "organization" : "ORG-ISp7-RIPE",
    "admin_contacts" : [ "DM15329-RIPE" ],
    "tech_contacts" : [ "DM15329-RIPE" ],
    "mnt_by" : [ "RIPE-NCC-END-MNT", "D4T4-RIPE-MNT" ],
    "date_created" : "2017-12-01",
    "date_updated" : "2023-03-29",
    "source" : "RIPE"
  } ],
  "organization" : {
    "handle" : "ORG-ISp7-RIPE",
    "name" : "Celebrus Technologies plc",
    "type" : "LIR",
    "address" : [ "Elmbrook House, 18-19 Station Road", "TW16 6SB", "Sunbury-on-Thames", "UNITED KINGDOM" ],
    "street" : "Station Road",
    "city" : "Sunbury-on-thames",
    "zip_code" : "TW16 6SB",
    "country" : [ "GB" ],
    "phone" : [ "+441932893333" ],
    "abuse_contacts" : [ "RDSA4-RIPE" ],
    "mnt_ref" : [ "RIPE-NCC-HM-MNT", "D4T4-RIPE-MNT" ],
    "mnt_by" : [ "RIPE-NCC-HM-MNT", "D4T4-RIPE-MNT" ],
    "date_created" : "2011-05-17",
    "date_updated" : "2025-12-11",
    "source" : "RIPE",
    "addressCountry" : "UNITED KINGDOM"
  },
  "administrative_contacts" : [ {
    "handle" : "DM15329-RIPE",
    "name" : "David Messenger",
    "address" : [ "Windmill House, 91-93 Windmill Road Sunbury-on-Thames, TW16 7EF" ],
    "street" : "Windmill Road",
    "city" : "Sunbury-on-thames",
    "zip_code" : "TW16 7EF",
    "phone" : [ "+44 (0)1932 893333" ],
    "mnt_by" : [ "David_Messenger_D4T4" ],
    "date_created" : "2017-06-27",
    "date_updated" : "2017-06-27",
    "source" : "RIPE"
  } ],
  "technical_contacts" : [ {
    "handle" : "DM15329-RIPE",
    "name" : "David Messenger",
    "address" : [ "Windmill House, 91-93 Windmill Road Sunbury-on-Thames, TW16 7EF" ],
    "street" : "Windmill Road",
    "city" : "Sunbury-on-thames",
    "zip_code" : "TW16 7EF",
    "phone" : [ "+44 (0)1932 893333" ],
    "mnt_by" : [ "David_Messenger_D4T4" ],
    "date_created" : "2017-06-27",
    "date_updated" : "2017-06-27",
    "source" : "RIPE"
  } ]
}

Peers

AS Number	Description	Country
AS196646	Datum Datacentres Limited	GB
AS51048	WIFINITY LIMITED	GB
AS51043	Aspire Technology Solutions Ltd	GB
AS13037	Zen Internet Ltd	GB

Upstreams

AS Number	Description	Country
AS196646	Datum Datacentres Limited	GB
AS51048	WIFINITY LIMITED	GB

Frequently Asked Questions

What is ASN AS204945?

ASN AS204945 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS204945?

AS204945 is listed under Celebrus Technologies plc.

What do peers, upstreams, and downstreams mean?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data included here?

WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access full ASN table data?

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.