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

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
reg-nr:         473521
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:  2026-05-13T07:19:56Z
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 1.123 (SHETLAND)

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" : "2026-05-13",
    "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
AS51907	Kanton Zug	CH
AS213151	Christian Elsen	DE
AS58057	Securebit AG	CH
AS25220	equada network GmbH	DE
AS20932	Service Telecom	CH
AS39249	Netassist International EOOD	BG
AS60602	Inovare-Prim SRL	MD
AS38880	Micron21 Datacentre Pty Ltd	AU
AS31133	PJSC MegaFon	RU
AS14537	Continent 8 LLC	US
AS198150	SIACOM JSC	GE
AS15943	wilhelm.tel GmbH	DE
AS45352	IP ServerOne Solutions Sdn Bhd	MY
AS4230	CLARO S.A.	BR
AS8529	Zain Omantel International FZ-LLC	AE
AS37468	Angola Cables	AO
AS47957	Worldline IGSA SA	FR
AS60144	3W Infra B.V.	NL
AS199524	G-Core Labs S.A.	LU
AS34288	Kantonsschule Zug	CH
AS1351	University of Vermont	US
AS64475	Freifunk Frankfurt am Main e.V.	DE
AS47692	Nessus GmbH	AT
AS1000	LINK AMERICAN	US
AS53062	GGNET TELECOMUNICACOES LTDA	BR
AS206735	Novelcomm LP	GR
AS12859	BIT BV	NL
AS13237	euNetworks GmbH	DE
AS14840	BR.Digital Telecom	BR
AS13058	serve-u - Buchholz und Suenderhauf GbR	DE
AS21497	PrJSC "VF UKRAINE"	UA
AS35360	Frederic Gargula	CH
AS12735	TurkNet Iletisim Hizmetleri A.S.	TR
AS559	SWITCH	CH
AS203446	SMARTNET LIMITED	GB
AS8758	Iway AG	CH
AS8801	Rocket Fibre Ltd	GB
AS35625	Eurofiber France SAS	FR
AS20647	IPB Internet Provider in Berlin GmbH	DE
AS25091	IP Max SA	ZZ
AS1836	green.ch AG	CH
AS61461	Airtek Solutions C.A.	VE
AS1828	Unitas Global	US
AS264479	Turbozone Internet	BR
AS20932	Services Industriels de Geneve	CH
AS142271	EWS DS Networks Inc	PH
AS12741	Netia SA	PL
AS45701	PT. Internet Madju Abad Milenindo	ID
AS8717	A1 Bulgaria EAD	BG
AS31027	GlobalConnect A/S	DK
AS64289	Macarne.com	US
AS209823	Enki Multimedia EURL	FR
AS8298	IPng Networks GmbH	CH
AS14630	Invesco Group Services, Inc.	US
AS553	BelWue Koordination	DE
AS60171	AFR-IX TELECOM S.A.	ES
AS34177	Celeste SAS	FR
AS34019	Hivane Association	FR
AS23106	AMERICAN TOWER DO BRASIL-COMUNICAÇÂO MULTIMÍDIA LT	BR

Upstreams

AS Number	Description	Country
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
AS6695	DE CIX Management GmbH	DE
AS22356	Durand do Brasil Ltda	BR
AS6663	Euroweb Romania S.R.L.	RO
AS2914	NTT America, Inc.	US
AS33891	Core Backbone GmbH	DE
AS4230	CLARO S.A.	BR
AS17557	Pakistan Telecommunication Company Limited	PK
AS34019	Hivane Association	FR
AS34177	Celeste SAS	FR
AS37468	Angola Cables	AO
AS20764	CJSC RASCOM	RU
AS60171	AFR IX TELECOM S.A.	ES
AS4455	IX Reach Ltd	GB
AS15958	CETIN Ltd. Belgrade	RS
AS37100	SEACOM Limited	MU
AS39120	Convergenze S.p.A.	IT
AS12859	BIT BV	NL
AS14840	BR.Digital Telecom	BR
AS29632	Netassist International EOOD	BG
AS24961	WIIT AG	DE
AS29075	IELO LIAZO SERVICES SAS	FR
AS6057	Administracion Nacional de Telecomunicaciones	UY
AS1267	WIND TRE S.P.A.	IT
AS5405	Inter.link GmbH	DE
AS41327	Fiber Telecom S.p.A.	IT
AS8758	Iway AG	CH
AS29691	Nine Internet Solutions AG	CH
AS12779	IT.Gate S.p.A.	IT
AS35625	Eurofiber France SAS	FR
AS29208	Quantcom, a.s.	CZ
AS25091	IP Max SA	ZZ
AS212024	Marc Schmitt	FR
AS1836	green.ch AG	CH
AS35280	F5 Networks SARL	FR
AS20562	Broadband Hosting B.V.	NL
AS20485	Joint Stock Company TransTeleCom	RU
AS5713	SAIX NET	ZA
AS3356	Level 3 Parent, LLC	US
AS137409	GSL Networks Pty LTD	AU
AS34549	meerfarbig GmbH & Co. KG	DE
AS12577	MMC GmbH	AT

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