How can I access the full ASN tables?

The page shows a preview of large ASN datasets. Use the page controls to load more rows, and upgrade to a paid plan for complete access.

AS218625 Communication Dynamics Ltd

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

Communication Dynamics Ltd cdyn.io

GB 1 Routes

AS Data

AS218625

AS218625 – Communication Dynamics Ltd

AS Number	218625
AS Name	COMMUNICATION-DYNAMICS
Organization	Communication Dynamics Ltd (org-cdl27-ripe)
Country	GB
Website	cdyn.io
Number of IPv4 Routes	1
Number of IPv6 Routes	0
Allocation Status	ASSIGNED
Registry	RIPE
Date Allocated	2026-09-21

ASN Intelligence API for production workflows

Use ASN data for AS218625 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

Access complete peers, upstreams, downstreams, routes, WHOIS, and contact intelligence via our API. Learn more

Get ASN API Key ASN API Docs

IP Ranges

Route	Origin	Origin Name	ISP	# IPs
87.254.24.0/24	AS218625	Communication Dynamics Ltd	Communication Dynamics Ltd	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 'AS215130 - AS219547'

as-block:       AS215130 - AS219547
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:        2026-06-02T14:29:24Z
last-modified:  2026-06-02T14:29:24Z
source:         RIPE

% Information related to 'AS218625'

% Abuse contact for 'AS218625' is 'abuse@cdyn.io'

aut-num:        AS218625
as-name:        COMMUNICATION-DYNAMICS
org:            ORG-CDL27-RIPE
sponsoring-org: ORG-IL687-RIPE
import:         from AS2856 accept ANY
export:         to AS2856 announce AS218625
import:         from AS15830 accept ANY
export:         to AS15830 announce AS218625
admin-c:        CDN156-RIPE
tech-c:         CDN156-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         CDYN-MNT
created:        2026-09-21T06:42:14Z
last-modified:  2026-09-21T06:42:14Z
source:         RIPE

organisation:   ORG-CDL27-RIPE
org-name:       Communication Dynamics Ltd
org-type:       OTHER
address:        45 Albemarle Street, Mayfair, London, W1S 4JL
country:        GB
reg-nr:         15930542
phone:          +442045669990
abuse-c:        CDN156-RIPE
mnt-ref:        CDYN-MNT
mnt-ref:        netutils-mnt
mnt-by:         CDYN-MNT
created:        2026-08-13T10:44:08Z
last-modified:  2026-09-24T07:20:36Z
source:         RIPE # Filtered

role:           Communication Dynamics Ltd NOC
abuse-mailbox:  abuse@cdyn.io
nic-hdl:        CDN156-RIPE
mnt-by:         CDYN-MNT
created:        2026-08-13T10:32:32Z
last-modified:  2026-08-13T10:41:46Z
source:         RIPE # Filtered

% This query was served by the RIPE Database Query Service version 1.124.1 (SHETLAND)

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.ripe.net",
  "as_blocks" : [ {
    "as_block" : "AS215130 - AS219547",
    "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" : "2026-06-02",
    "date_updated" : "2026-06-02",
    "source" : "RIPE"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS218625",
    "as_name" : "COMMUNICATION-DYNAMICS",
    "status" : "ASSIGNED",
    "import" : [ "from AS2856 accept ANY", "from AS15830 accept ANY" ],
    "export" : [ "to AS2856 announce AS218625", "to AS15830 announce AS218625" ],
    "organization" : "ORG-CDL27-RIPE",
    "sponsoring_organization" : "ORG-IL687-RIPE",
    "admin_contacts" : [ "CDN156-RIPE" ],
    "tech_contacts" : [ "CDN156-RIPE" ],
    "mnt_by" : [ "RIPE-NCC-END-MNT", "CDYN-MNT" ],
    "date_created" : "2026-09-21",
    "date_updated" : "2026-09-21",
    "source" : "RIPE"
  } ],
  "organization" : {
    "handle" : "ORG-CDL27-RIPE",
    "name" : "Communication Dynamics Ltd",
    "type" : "OTHER",
    "address" : [ "45 Albemarle Street, Mayfair, London, W1S 4JL" ],
    "street" : "Albemarle Street",
    "city" : "London",
    "zip_code" : "W1S 4JL",
    "country" : [ "GB" ],
    "phone" : [ "+442045669990" ],
    "abuse_contacts" : [ "CDN156-RIPE" ],
    "mnt_ref" : [ "CDYN-MNT", "netutils-mnt" ],
    "mnt_by" : [ "CDYN-MNT" ],
    "date_created" : "2026-08-13",
    "date_updated" : "2026-09-24",
    "source" : "RIPE"
  },
  "administrative_contacts" : [ {
    "handle" : "CDN156-RIPE",
    "name" : "Communication Dynamics Ltd NOC",
    "abuse_mailbox" : [ "abuse@cdyn.io" ],
    "mnt_by" : [ "CDYN-MNT" ],
    "date_created" : "2026-08-13",
    "date_updated" : "2026-08-13",
    "source" : "RIPE"
  } ],
  "technical_contacts" : [ {
    "handle" : "CDN156-RIPE",
    "name" : "Communication Dynamics Ltd NOC",
    "abuse_mailbox" : [ "abuse@cdyn.io" ],
    "mnt_by" : [ "CDYN-MNT" ],
    "date_created" : "2026-08-13",
    "date_updated" : "2026-08-13",
    "source" : "RIPE"
  } ]
}

Peers

AS Number	Description	Country
AS2856	British Telecommunications Limited	GB
AS15830	Equinix EMEA Acquisition Enterprises B.V.	NL

Upstreams

AS Number	Description	Country
AS2856	British Telecommunications Limited	GB

Frequently Asked Questions

What is ASN AS218625?

ASN AS218625 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS218625?

AS218625 is listed under Communication Dynamics Ltd.

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.