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AS218723 CEGO A/S | IPGeolocation.io

Q: Why is WHOIS data shown for an ASN?

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

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CEGO A/S cego.dk

DK 0 Routes

AS Data

AS218723

AS218723 – CEGO A/S

AS Number	218723
AS Name	CEGO-ASN
Organization	CEGO A/S (org-ca1025-ripe)
Country	DK
Website	cego.dk
Number of IPv4 Routes	0
Number of IPv6 Routes	0
ASN type	ISP
Allocation Status	ASSIGNED
Registry	RIPE
Date Allocated	2026-09-09

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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 'AS218723'

% Abuse contact for 'AS218723' is 'abuse@cego.dk'

aut-num:        AS218723
as-name:        CEGO-ASN
org:            ORG-CA1025-RIPE
sponsoring-org: ORG-ZA135-RIPE
import:         from AS3292 accept ANY
export:         to AS3292 announce AS218723
import:         from AS31027 accept ANY
export:         to AS31027 announce AS218723
admin-c:        HK5541-RIPE
admin-c:        AS5071-RIPE
tech-c:         HK5541-RIPE
tech-c:         AS5071-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         dk-zencurity-1-mnt
mnt-by:         TDK-MNT
created:        2026-09-09T11:47:58Z
last-modified:  2026-09-09T11:47:58Z
source:         RIPE

organisation:   ORG-CA1025-RIPE
org-name:       CEGO A/S
country:        DK
reg-nr:         29206651
org-type:       OTHER
address:        Lauritzens Plads 1, 9000 Aalborg, Denmark
abuse-c:        CAA62-RIPE
remarks:        mail abuse contact abuse@cego.dk
mnt-ref:        TDK-MNT
mnt-by:         TDK-MNT
created:        2010-07-02T12:01:28Z
last-modified:  2026-05-13T05:23:49Z
source:         RIPE # Filtered

role:           AS3292 Staff
address:        TDC A/S
address:        Sletvej 30, 8-062
address:        DK-8310 Tranbjerg
address:        Denmark
remarks:        contact info: http://as3292.peeringdb.com
admin-c:        NCB1-RIPE
admin-c:        MBP137-RIPE
tech-c:         NCB1-RIPE
tech-c:         CP11490-RIPE
tech-c:         MBP137-RIPE
nic-hdl:        AS5071-RIPE
mnt-by:         AS3292-MNT
created:        2002-07-02T13:36:00Z
last-modified:  2024-05-21T09:07:14Z
source:         RIPE # Filtered

person:         Henrik Kramselund
address:        Lynghoejvej 26, DK3390 Hundested, Denmark
phone:          +45 2026 6000
nic-hdl:        HK5541-RIPE
mnt-by:         dk-zencurity-1-mnt
created:        2015-11-30T08:33:32Z
last-modified:  2023-11-14T08:05:27Z
source:         RIPE

% 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" : "AS218723",
    "as_name" : "CEGO-ASN",
    "status" : "ASSIGNED",
    "import" : [ "from AS3292 accept ANY", "from AS31027 accept ANY" ],
    "export" : [ "to AS3292 announce AS218723", "to AS31027 announce AS218723" ],
    "organization" : "ORG-CA1025-RIPE",
    "sponsoring_organization" : "ORG-ZA135-RIPE",
    "admin_contacts" : [ "HK5541-RIPE", "AS5071-RIPE" ],
    "tech_contacts" : [ "HK5541-RIPE", "AS5071-RIPE" ],
    "mnt_by" : [ "RIPE-NCC-END-MNT", "dk-zencurity-1-mnt", "TDK-MNT" ],
    "date_created" : "2026-09-09",
    "date_updated" : "2026-09-09",
    "source" : "RIPE"
  } ],
  "organization" : {
    "handle" : "ORG-CA1025-RIPE",
    "name" : "CEGO A/S",
    "type" : "OTHER",
    "address" : [ "Lauritzens Plads 1, 9000 Aalborg, Denmark" ],
    "street" : "Lauritzens Plads",
    "city" : "Aalborg",
    "zip_code" : "9000",
    "country" : [ "DK" ],
    "abuse_contacts" : [ "CAA62-RIPE" ],
    "remarks" : [ "mail abuse contact abuse@cego.dk" ],
    "mnt_ref" : [ "TDK-MNT" ],
    "mnt_by" : [ "TDK-MNT" ],
    "date_created" : "2010-07-02",
    "date_updated" : "2026-05-13",
    "source" : "RIPE",
    "addressCountry" : "DENMARK"
  },
  "administrative_contacts" : [ {
    "handle" : "HK5541-RIPE",
    "name" : "Henrik Kramselund",
    "address" : [ "Lynghoejvej 26, DK3390 Hundested, Denmark" ],
    "street" : "Lynghoejvej",
    "city" : "Hundested",
    "zip_code" : "DK3390",
    "country" : "DENMARK",
    "phone" : [ "+45 2026 6000" ],
    "mnt_by" : [ "dk-zencurity-1-mnt" ],
    "date_created" : "2015-11-30",
    "date_updated" : "2023-11-14",
    "source" : "RIPE",
    "addressCountry" : "DENMARK"
  }, {
    "handle" : "AS5071-RIPE",
    "name" : "AS3292 Staff",
    "address" : [ "TDC A/S", "Sletvej 30, 8-062", "DK-8310 Tranbjerg", "Denmark" ],
    "street" : "Sletvej",
    "city" : "Tranbjerg",
    "zip_code" : "DK-8310",
    "country" : "DENMARK",
    "admin_contacts" : [ "NCB1-RIPE", "MBP137-RIPE" ],
    "tech_contacts" : [ "NCB1-RIPE", "CP11490-RIPE", "MBP137-RIPE" ],
    "remarks" : [ "contact info: http://as3292.peeringdb.com" ],
    "mnt_by" : [ "AS3292-MNT" ],
    "date_created" : "2002-07-02",
    "date_updated" : "2024-05-21",
    "source" : "RIPE",
    "addressCountry" : "DENMARK"
  } ],
  "technical_contacts" : [ {
    "handle" : "HK5541-RIPE",
    "name" : "Henrik Kramselund",
    "address" : [ "Lynghoejvej 26, DK3390 Hundested, Denmark" ],
    "street" : "Lynghoejvej",
    "city" : "Hundested",
    "zip_code" : "DK3390",
    "country" : "DENMARK",
    "phone" : [ "+45 2026 6000" ],
    "mnt_by" : [ "dk-zencurity-1-mnt" ],
    "date_created" : "2015-11-30",
    "date_updated" : "2023-11-14",
    "source" : "RIPE",
    "addressCountry" : "DENMARK"
  }, {
    "handle" : "AS5071-RIPE",
    "name" : "AS3292 Staff",
    "address" : [ "TDC A/S", "Sletvej 30, 8-062", "DK-8310 Tranbjerg", "Denmark" ],
    "street" : "Sletvej",
    "city" : "Tranbjerg",
    "zip_code" : "DK-8310",
    "country" : "DENMARK",
    "admin_contacts" : [ "NCB1-RIPE", "MBP137-RIPE" ],
    "tech_contacts" : [ "NCB1-RIPE", "CP11490-RIPE", "MBP137-RIPE" ],
    "remarks" : [ "contact info: http://as3292.peeringdb.com" ],
    "mnt_by" : [ "AS3292-MNT" ],
    "date_created" : "2002-07-02",
    "date_updated" : "2024-05-21",
    "source" : "RIPE",
    "addressCountry" : "DENMARK"
  } ]
}

Peers

AS Number	Description	Country
AS31027	GlobalConnect A/S	DK
AS3292	TDC Holding A/S	DK

Frequently Asked Questions

What is ASN AS218723?

ASN AS218723 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS218723?

AS218723 is listed under CEGO A/S.

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.

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ASN Summary

AS218723 – CEGO A/S

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Raw Whois Response

Parsed Whois Response

Peers

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