ASN AS51865 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS51865?

AS51865 is listed under DIDWW Ireland Limited.

What do peers, upstreams, and downstreams mean in ASN data?

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 shown for an ASN?

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

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.

AS51865 DIDWW Ireland Limited

ASN Lookup Tool

DIDWW Ireland Limited didww.com

IE 6 Routes

AS Data

AS51865

AS51865 – DIDWW Ireland Limited

AS Number	51865
AS Name	DIDWW-AS
Organization	DIDWW Ireland Limited (org-dil13-ripe)
Country	IE
Website	didww.com
Number of IPv4 Routes	3
Number of IPv6 Routes	3
ASN type	BUSINESS
Allocation Status	ASSIGNED
Registry	RIPE
Date Allocated	2010-11-18

ASN Intelligence API for production workflows

Use ASN data for AS51865 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
2a01:ad00::/32	AS51865	DIDWW Ireland Limited	DIDWW Ireland Limited	~79×10²⁷
185.238.172.0/24	AS51865	DIDWW Ireland Limited	DIDWW Ireland Limited	256
2a01:ad00:128::/48	AS51865	DIDWW Ireland Limited	DIDWW Ireland Limited	~1×10²⁴
46.19.210.0/24	AS51865	DIDWW Ireland Limited	DIDWW Ireland Limited	256
46.19.208.0/21	AS51865	DIDWW Ireland Limited	DIDWW Ireland Limited	2048
2a01:ad00:2::/48	AS51865	DIDWW Ireland Limited	DIDWW Ireland Limited	~1×10²⁴

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 'AS51857 - AS52209'

as-block:       AS51857 - AS52209
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:        2024-12-12T14:34:06Z
last-modified:  2024-12-12T14:34:06Z
source:         RIPE

% Information related to 'AS51865'

% Abuse contact for 'AS51865' is 'lir@didww.com'

aut-num:        AS51865
as-name:        DIDWW-AS
org:            ORG-DIL13-RIPE
import:         from AS3356 accept ANY
import:         from AS2914 accept ANY
import:         from AS174 accept ANY
import:         from AS63034 accept ANY
import:         from AS6939 accept ANY
import:         from AS6695 accept ANY
export:         to AS3356 announce AS-DIDWW
export:         to AS2914 announce AS-DIDWW
export:         to AS174 announce AS-DIDWW
export:         to AS63034 announce AS-DIDWW
export:         to AS6939 announce AS-DIDWW
export:         to AS6695 announce AS-DIDWW
export:         to AS13335 announce AS-DIDWW
remarks:        =============== IPv6 Routing policy =============
mp-import:      afi ipv6.unicast from AS3356 accept ANY
mp-export:      afi ipv6.unicast to AS3356 announce AS-DIDWW
mp-import:      afi ipv6.unicast from AS2914 accept ANY
mp-export:      afi ipv6.unicast to AS2914 announce AS-DIDWW
mp-import:      afi ipv6.unicast from AS174 accept ANY
mp-export:      afi ipv6.unicast to AS174 announce AS-DIDWW
mp-import:      afi ipv6.unicast from AS63034 accept ANY
mp-export:      afi ipv6.unicast to AS63034 announce AS-DIDWW
mp-import:      afi ipv6.unicast from AS6939 accept ANY
mp-export:      afi ipv6.unicast to AS6939 announce AS-DIDWW
mp-import:      afi ipv6.unicast from AS6695 accept ANY
mp-export:      afi ipv6.unicast to AS6695 announce AS-DIDWW
admin-c:        DIDA-RIPE
tech-c:         DIDT-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         MNT-DIDWW
created:        2010-11-18T12:28:10Z
last-modified:  2021-12-07T22:43:03Z
source:         RIPE

organisation:   ORG-DIL13-RIPE
org-name:       DIDWW Ireland Limited
country:        IE
org-type:       LIR
address:        25 North Wall Quay
address:        D01H104
address:        Dublin 1
address:        IRELAND
phone:          +35319015266
abuse-c:        AR15514-RIPE
admin-c:        DIDA-RIPE
tech-c:         DIDT-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        MNT-DIDWW
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         MNT-DIDWW
created:        2010-09-06T10:41:29Z
last-modified:  2026-02-19T11:47:24Z
source:         RIPE # Filtered

role:           DIDWW Administrative role
address:        25 North Wall Quay
address:        D01H104
address:        Dublin 1
address:        IRELAND
org:            ORG-DIL13-RIPE
admin-c:        YURI
tech-c:         DIDT-RIPE
nic-hdl:        DIDA-RIPE
mnt-by:         MNT-DIDWW
created:        2011-03-10T16:19:03Z
last-modified:  2026-02-18T10:59:06Z
source:         RIPE # Filtered

role:           DIDWW Technical role
address:        25 North Wall Quay
address:        D01H104
address:        Dublin 1
address:        IRELAND
org:            ORG-DIL13-RIPE
admin-c:        DIDA-RIPE
tech-c:         YURI
nic-hdl:        DIDT-RIPE
mnt-by:         MNT-DIDWW
created:        2011-03-10T16:22:02Z
last-modified:  2026-02-18T10:59:40Z
source:         RIPE # Filtered

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

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.ripe.net",
  "as_blocks" : [ {
    "as_block" : "AS51857 - AS52209",
    "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" : "2024-12-12",
    "date_updated" : "2024-12-12",
    "source" : "RIPE"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS51865",
    "as_name" : "DIDWW-AS",
    "status" : "ASSIGNED",
    "import" : [ "from AS3356 accept ANY", "from AS2914 accept ANY", "from AS174 accept ANY", "from AS63034 accept ANY", "from AS6939 accept ANY", "from AS6695 accept ANY" ],
    "mp_import" : [ "afi ipv6.unicast from AS3356 accept ANY", "afi ipv6.unicast from AS2914 accept ANY", "afi ipv6.unicast from AS174 accept ANY", "afi ipv6.unicast from AS63034 accept ANY", "afi ipv6.unicast from AS6939 accept ANY", "afi ipv6.unicast from AS6695 accept ANY" ],
    "export" : [ "to AS3356 announce AS-DIDWW", "to AS2914 announce AS-DIDWW", "to AS174 announce AS-DIDWW", "to AS63034 announce AS-DIDWW", "to AS6939 announce AS-DIDWW", "to AS6695 announce AS-DIDWW", "to AS13335 announce AS-DIDWW" ],
    "mp_export" : [ "afi ipv6.unicast to AS3356 announce AS-DIDWW", "afi ipv6.unicast to AS2914 announce AS-DIDWW", "afi ipv6.unicast to AS174 announce AS-DIDWW", "afi ipv6.unicast to AS63034 announce AS-DIDWW", "afi ipv6.unicast to AS6939 announce AS-DIDWW", "afi ipv6.unicast to AS6695 announce AS-DIDWW" ],
    "organization" : "ORG-DIL13-RIPE",
    "admin_contacts" : [ "DIDA-RIPE" ],
    "tech_contacts" : [ "DIDT-RIPE" ],
    "remarks" : [ "=============== IPv6 Routing policy =============" ],
    "mnt_by" : [ "RIPE-NCC-END-MNT", "MNT-DIDWW" ],
    "date_created" : "2010-11-18",
    "date_updated" : "2021-12-07",
    "source" : "RIPE"
  } ],
  "organization" : {
    "handle" : "ORG-DIL13-RIPE",
    "name" : "DIDWW Ireland Limited",
    "type" : "LIR",
    "address" : [ "25 North Wall Quay", "D01H104", "Dublin 1", "IRELAND" ],
    "street" : "North Wall Quay",
    "city" : "Dublin 1",
    "zip_code" : "D01H104",
    "country" : [ "IE" ],
    "phone" : [ "+35319015266" ],
    "admin_contacts" : [ "DIDA-RIPE" ],
    "tech_contacts" : [ "DIDT-RIPE" ],
    "abuse_contacts" : [ "AR15514-RIPE" ],
    "mnt_ref" : [ "RIPE-NCC-HM-MNT", "MNT-DIDWW" ],
    "mnt_by" : [ "RIPE-NCC-HM-MNT", "MNT-DIDWW" ],
    "date_created" : "2010-09-06",
    "date_updated" : "2026-02-19",
    "source" : "RIPE",
    "addressCountry" : "IRELAND"
  },
  "administrative_contacts" : [ {
    "handle" : "DIDA-RIPE",
    "name" : "DIDWW Administrative role",
    "address" : [ "25 North Wall Quay", "D01H104", "Dublin 1", "IRELAND" ],
    "street" : "North Wall Quay",
    "city" : "Dublin 1",
    "zip_code" : "D01H104",
    "country" : "IRELAND",
    "organizations" : [ "ORG-DIL13-RIPE" ],
    "admin_contacts" : [ "YURI" ],
    "tech_contacts" : [ "DIDT-RIPE" ],
    "mnt_by" : [ "MNT-DIDWW" ],
    "date_created" : "2011-03-10",
    "date_updated" : "2026-02-18",
    "source" : "RIPE",
    "addressCountry" : "IRELAND"
  } ],
  "technical_contacts" : [ {
    "handle" : "DIDT-RIPE",
    "name" : "DIDWW Technical role",
    "address" : [ "25 North Wall Quay", "D01H104", "Dublin 1", "IRELAND" ],
    "street" : "North Wall Quay",
    "city" : "Dublin 1",
    "zip_code" : "D01H104",
    "country" : "IRELAND",
    "organizations" : [ "ORG-DIL13-RIPE" ],
    "admin_contacts" : [ "DIDA-RIPE" ],
    "tech_contacts" : [ "YURI" ],
    "mnt_by" : [ "MNT-DIDWW" ],
    "date_created" : "2011-03-10",
    "date_updated" : "2026-02-18",
    "source" : "RIPE",
    "addressCountry" : "IRELAND"
  } ]
}

Peers

AS Number	Description	Country
AS12552	GlobalConnect AB	SE
AS213151	Christian Elsen	DE
AS58057	Securebit AG	CH
AS25220	equada network GmbH	DE
AS20932	Service Telecom	CH
AS39249	Netassist International EOOD	BG
AS38880	Micron21 Datacentre Pty Ltd	AU
AS31133	PJSC MegaFon	RU
AS42541	FIBERBY	DK
AS14537	Continent 8 LLC	US

Upstreams

AS Number	Description	Country
AS28716	Retelit Digital Services S.p.A.	IT
AS9498	Bharti Airtel Limited	IN
AS34927	iFog GmbH	CH
AS39249	Netassist International EOOD	BG
AS1764	Next Layer Telekommunikationsdienstleistungs und Beratungs GmbH	AT
AS39351	31173 Services AB	SE
AS6939	Hurricane Electric LLC	US
AS8359	MTS PJSC	RU
AS25091	IP Max SA	CH
AS6204	ZET.NET IP Transit	RO