Data as of Nov 12, 2026

77.74.104.0/21

No anonymizer space · no proxy exits in 30 days

Datum Datacentres Limited

Announcement

this exact prefix

RPKI valid

Announced by

AS43545

Type

Hosting

Announcements

More specific

Announcements inside

Prefix	Origin	Type	Holder	RPKI
77.74.110.0/24 since Nov 2025	AS43545	Hosting	Datum Datacentres Limited

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
77.74.104.0/21	2,048	UK-DATUM-20090107	Datum Datacentres Limited (ORG-DDL7-RIPE) · GB	ALLOCATED PA	Oct 22, 2026	DatumEngineering@datum.co.uk
└ 77.74.104.0/25	128	DATUM-DS1	Datum Network - DS1	ASSIGNED PA	Dec 29, 2017	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.104.128/28	16	DATUM-DATAMERE	Datum Network - Datamere	ASSIGNED PA	Feb 1, 2023	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.104.144/28	16	DATUM-MIS	Datum Network - MIS Emergency Systems	ASSIGNED PA	May 9, 2018	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.104.160/28	16	DATUM-NESGROUP	Datum Network - NES Group Ltd	ASSIGNED PA	Aug 13, 2026	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.104.176/28	16	DATUM-MAPWAY	Datum Network - Mapway Ltd	ASSIGNED PA	Feb 1, 2023	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.105.0/24	256	DATUM-CLOUDGEENI	Datum Network - Cloud Geeni	ASSIGNED PA	Dec 20, 2021	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.106.0/26	64	DATUM-NVIRON	Datum Network - Nviron	ASSIGNED PA	Feb 1, 2023	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.106.64/27	32	DATUM-COMMSTEM	Datum Network - Communication Stem Limited	ASSIGNED PA	Jan 22, 2026	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.106.96/27	32	DATUM-COMMSTEM	Datum Network - Communication Stem	ASSIGNED PA	Jan 22, 2026	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.106.168/29	8	DATUM-CODETHINK	Datum Network - Codethink	ASSIGNED PA	Feb 1, 2023	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.106.176/29	8	DATUM-TELAPPLIANT	Datum Network - Telappliant Ltd	ASSIGNED PA	Dec 3, 2016	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.106.184/29	8	DATUM-HOSTROUTE	Datum Network - Host Route	ASSIGNED PA	Dec 29, 2017	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.107.0/28	16	TELEMAN	Teledata UK Network Block 2	ASSIGNED PA	Jul 29, 2009	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.107.16/30	4	TELEMAN	Datum Network - Manchester	ASSIGNED PA	Jun 8, 2016	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.107.20/30	4	TELEMAN	Datum Network - Manchester	ASSIGNED PA	Jun 8, 2016	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.107.24/29	8	DATUM-KROME	Datum Network - ASM - Krome	ASSIGNED PA	Aug 7, 2010	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.107.48/28	16	DATUM-KROME	Datum Network - ASM - Krome	ASSIGNED PA	Jul 29, 2009	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.107.64/28	16	DATUM-NETACTUATE	Datum Network - NetActuate	ASSIGNED PA	Feb 1, 2023	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.107.96/28	16	TELEMAN	unknown	ASSIGNED PA	Dec 3, 2016	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.107.120/29	8	DATUM-HARGREAVES	Datum Network - Hargreaves Services	ASSIGNED PA	Jan 27, 2019	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.107.128/25	128	DATUM-MAPWAY	Datum Network - Mapway Ltd	ASSIGNED PA	Jul 29, 2009	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.108.0/24	256	DATUM-CLOUDGEENI	Datum Network - Cloud Geeni	ASSIGNED PA	May 23, 2025	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.109.0/25	128	DATUM-NCO	Datum Network - NCO Europe Ltd	ASSIGNED PA	Feb 1, 2023	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.109.128/28	16	DATUM-MERULA	Datum Network - Merula Ltd	ASSIGNED PA	Feb 1, 2023	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.109.144/28	16	DATUM-YESSS	Datum Network - Yesss Electrical Ltd	ASSIGNED PA	Feb 1, 2023	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.109.160/28	16	DATUM-VELOXSERV	Datum Network - VeloxServ Communications Ltd	ASSIGNED PA	Feb 1, 2023	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.109.176/29	8	DATUM-CSGI	Datum Network - Independent Technology Systems	ASSIGNED PA	Jul 14, 2023	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.109.184/30	4	DATUM-ASM	Datum Network - ASM	ASSIGNED PA	Feb 1, 2023	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.109.188/30	4	DATUM-ASM	Datum Network - ASM	ASSIGNED PA	Feb 1, 2023	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.109.192/26	64	DATUM-CLOUDACTIV	Teledata Cloud Activ Firewall Routing Blocks	ASSIGNED PA	May 29, 2019	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.110.0/24	256	DATUM-ASM	Datum Network - ASM	ASSIGNED PA	Apr 12, 2014	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.111.0/27	32	TELEMAN	Ibox Monitoring Network - Datum	ASSIGNED PA	Aug 7, 2010	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.111.48/31	2	TELEMAN	Datum Network - TELEMAN	ASSIGNED PA	Feb 1, 2023	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.111.56/30	4	TELEMAN	Datum Network - TELEMAN	ASSIGNED PA	Feb 1, 2023	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.111.60/30	4	TELEMAN	Datum Network - TELEMAN	ASSIGNED PA	Feb 1, 2023	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.111.64/28	16	DATUM-MIS	Datum Network - MIS Emergency Systems	ASSIGNED PA	May 23, 2025	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.111.88/29	8	DATUM-SOUTHERNCOMMS	Datum Network - Southern Communications Limited	ASSIGNED PA	Jan 22, 2026	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.111.96/27	32	DATUM-SYSVINIT	Datum Network - Sysvinit Zone	ASSIGNED PA	Sep 15, 2023	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.111.128/27	32	DATUM-CODETHINK	Datum Network - CodeThink	ASSIGNED PA	Apr 8, 2026	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.111.192/28	16	DATUM-PUBLICINTERNET	Datum Network - Public Internet Ltd	ASSIGNED PA	May 23, 2025	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.111.208/29	8	DATUM-ZAYO	Datum Network - Zayo Group UK Limited	ASSIGNED PA	Jan 22, 2026	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.111.216/29	8	DATUM-SAFETYNET	Datum Network - Safetynet It Ltd	ASSIGNED PA	Jan 22, 2026	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.111.224/28	16	DATUM-BCN	Datum Network - BCN Group	ASSIGNED PA	Jun 8, 2016	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.111.240/29	8	DATUM-BCN	Datum Network - BCN Group	ASSIGNED PA	Nov 6, 2023	DatumEngineering@datum.co.uk via UK-DATUM-20090107
└ 77.74.111.248/29	8	DATUM-LINX	Datum Network - London Internet Exchange Limited	ASSIGNED PA	Apr 28, 2026	DatumEngineering@datum.co.uk via UK-DATUM-20090107

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

Routing timeline

Who has announced this prefix

Summary

Routing history

Pattern: Stable
First seen: Jan 2009
Current origin since: Jan 2009 · 18 yr
Origin networks: 1

RPKI

Route origin authorizations

ROA prefix	ASN	Max len	Anchor	Verdict
77.74.104.0/21	AS43545	/21	RIPE	RPKI valid

IRR

Route objects on the exact prefix

Origin	Registry	Description	Maintainer	Modified
AS43545	RIPE	Datum Manchester Block 2	MNT-TELE	Nov 2, 2026