Data as of Nov 8, 2026

37.220.168.0/21

No anonymizer space · no proxy exits in 30 days

Fundaments B.V.

Announcement

this exact prefix

RPKI valid

Announced by

AS20559

Type

Hosting

Risk

50 / 100 · Medium

Registrations in this block

The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.

Range	Addresses	Netname	Holder	Type	Created	Abuse contact
37.220.168.0/21	2,048	NL-FUNDAMENTS-20120405	Fundaments B.V. (ORG-FB55-RIPE) · NL	ALLOCATED PA	Oct 14, 2022	Abuse@fundaments.nl
└ 37.220.168.0/27	32	DOTXS-NETWORK	dotXS Edge routing network	ASSIGNED PA	May 31, 2012	Abuse@fundaments.nl via NL-FUNDAMENTS-20120405
└ 37.220.169.0/27	32	DOTXS-NETWORK	dotXS Hosting & Automatisering access network	ASSIGNED PA	Sep 19, 2017	Abuse@fundaments.nl via NL-FUNDAMENTS-20120405
└ 37.220.169.32/27	32	DOTXS-NETWORK	dotXS Dedicated Customer lan	ASSIGNED PA	Sep 19, 2017	Abuse@fundaments.nl via NL-FUNDAMENTS-20120405
└ 37.220.169.64/26	64	LEXIMA-NET2	Lexima VM Colo	ASSIGNED PA	Mar 10, 2014	Abuse@fundaments.nl via NL-FUNDAMENTS-20120405
└ 37.220.169.128/27	32	NWO-SPINOZA	NWO Spinoza Network	ASSIGNED PA	Sep 19, 2017	Abuse@fundaments.nl via NL-FUNDAMENTS-20120405
└ 37.220.169.160/27	32	DOTXS-NETWORK	Dotxs Monman	ASSIGNED PA	Sep 19, 2017	Abuse@fundaments.nl via NL-FUNDAMENTS-20120405
└ 37.220.169.192/27	32	TENNET-SP	Tennet Sharepoint	ASSIGNED PA	Jul 11, 2013	Abuse@fundaments.nl via NL-FUNDAMENTS-20120405
└ 37.220.169.224/27	32	NSG	Nuscience IP Space	ASSIGNED PA	Sep 19, 2017	Abuse@fundaments.nl via NL-FUNDAMENTS-20120405
└ 37.220.170.0/26	64	DOTXS-NETWORK	dotXS Shared Hosting lan	ASSIGNED PA	Oct 16, 2012	Abuse@fundaments.nl via NL-FUNDAMENTS-20120405
└ 37.220.170.64/26	64	DOTXS-INFRA	DotXS infrastructure - mx - dns - exchange	ASSIGNED PA	Feb 4, 2013	Abuse@fundaments.nl via NL-FUNDAMENTS-20120405
└ 37.220.170.128/27	32	DOTXS_CUSTOMER_DEDICATED_FIREWALL	unknown	ASSIGNED PA	Feb 23, 2017	Abuse@fundaments.nl via NL-FUNDAMENTS-20120405
└ 37.220.170.160/28	16	DOTXS-MEDEWERKERS	unknown	ASSIGNED PA	Feb 23, 2017	Abuse@fundaments.nl via NL-FUNDAMENTS-20120405
└ 37.220.170.176/29	8	DOTXS-DELINUTS	unknown	ASSIGNED PA	Nov 23, 2017	Abuse@fundaments.nl via NL-FUNDAMENTS-20120405
└ 37.220.171.0/25	128	DOTXS-NETWORK	dotXS Shared Customer firewall lan	ASSIGNED PA	Sep 19, 2017	Abuse@fundaments.nl via NL-FUNDAMENTS-20120405
└ 37.220.172.0/29	8	DXS-METAMO-GLAS	Metamo glasvezel aansluiting	ASSIGNED PA	Mar 5, 2015	Abuse@fundaments.nl via NL-FUNDAMENTS-20120405
└ 37.220.172.8/30	4	DOTXS-ADEE	unknown	ASSIGNED PA	Feb 24, 2017	Abuse@fundaments.nl via NL-FUNDAMENTS-20120405
└ 37.220.172.16/28	16	CTS-NETWORK	CTS Network Robin Energy	ASSIGNED PA	Sep 19, 2017	Abuse@fundaments.nl via NL-FUNDAMENTS-20120405

A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.

Network & registry

Announcement Routing history RPKI & IRR Whois & abuse

Origin network

AS20559

Name: Fundaments B.V.
Type: Hosting
Registered: Aug 13, 2015
Domain: fundaments.nl
Website: www.fundaments.nl
Industry: Hosting and Cloud Provider
Spamhaus ASN-DROP: not listed

RPKI

Route origin authorizations

ROA prefix	ASN	Max len	Anchor	Verdict
37.220.168.0/21	AS20559	/21	RIPE	RPKI valid

IRR

Route objects on the exact prefix

Origin	Registry	Description	Maintainer	Modified
AS20559	RIPE		DOTXS-MNT	Aug 25, 2021

IRR inside

Route objects inside

Prefix	Origin	Registry	Description	Maintainer	Modified
37.220.173.0/24	AS20559	RIPE		DOTXS-MNT	Oct 13, 2021
37.220.174.0/23	AS20559	RIPE		DOTXS-MNT	Oct 13, 2021

37.220.168.0/21

Registrations in this block

Network & registry

AS20559

Who has announced this prefix

Routing history

History

Route origin authorizations

Route objects on the exact prefix

Route objects inside

Registration for this announcement

Abuse contact