Data as of Nov 7, 2026

185.85.164.0/22

No anonymizer space · no proxy exits in 30 days

MasterDC s.r.o. · space held by ServerNow s.r.o.

Announcement

this exact prefix

RPKI valid

Announced by

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
185.85.164.0/22	1,024	CZ-SN-20150127	ServerNow s.r.o. (ORG-SS453-RIPE) · CZ	ALLOCATED PA	Jan 27, 2015	abuse@master.cz
└ 185.85.164.0/26	64	DEDICATED-DC4-5-CZ-MAI	Master Internet s.r.o.	ASSIGNED PA	Jul 22, 2015	abuse@master.cz via CZ-SN-20150127
└ 185.85.164.64/26	64	SMSBRANA-1-CZ-MAI	SMSbrana s.r.o (ORG-SS918-RIPE)	ASSIGNED PA	Jul 30, 2015	tech@smsbrana.cz
└ 185.85.164.128/27	32	DC34-CEJL-BRQ-INFRA6-MAI-CZ	Master Internet s.r.o.	ASSIGNED PA	Mar 29, 2021	abuse@master.cz via CZ-SN-20150127
└ 185.85.164.160/27	32	SL510-1-CZ-MAI	Housing DC Praha	ASSIGNED PA	Feb 15, 2018	abuse@master.cz via CZ-SN-20150127
└ 185.85.164.192/26	64	LERISCZ-1-CZ-MAI	LERIS.CZ s.r.o. (ORG-LS248-RIPE)	ASSIGNED PA	Dec 22, 2015	filip.senk@leris.cz

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

Origin network

RPKI

ROA prefix	ASN	Max len	Anchor	Verdict
185.85.164.0/22	AS24971	/22	RIPE	RPKI valid

IRR

Origin	Registry	Description	Maintainer	Modified
AS24971	RIPE	CZ-SN-20150127	MASTER-MNT	Jan 30, 2015