Data as of Nov 7, 2026

91.143.104.0/24

No anonymizer space · no proxy exits in 30 days

Citycom Telekommunikation GmbH

Announcement

RPKI valid

Announced by

Type

Business

Risk

0 / 100 · Low

Registrations in this block

The registry's network records over this block, widest first, each under its parent.

Range	Addresses	Netname	Holder	Type	Created	Abuse contact
91.143.96.0/20	4,096	AT-GSTW-20061031	Citycom Telekommunikation GmbH (ORG-GSA1-RIPE) · AT	ALLOCATED PA	Oct 31, 2006	abuse@grazkom.at
└ 91.143.104.0/29	8	KARIN_PRUTSCH-AT-NET-01	Prutsch-Lang & Damitner Rechtsanwälte OG	ASSIGNED PA	Feb 23, 2023	abuse@grazkom.at via AT-GSTW-20061031
└ 91.143.104.8/29	8	EGG-MMS-AT-NET-01	Energie Graz GmbH - MMS/IT	ASSIGNED PA	Jul 29, 2025	abuse@grazkom.at via AT-GSTW-20061031
└ 91.143.104.16/28	16	UMJ-LENDKAI-AT-NET-01	Universalmuseum Joanneum GmbH	ASSIGNED PA	Jun 16, 2015	abuse@grazkom.at via AT-GSTW-20061031
└ 91.143.104.32/27	32	DCCS-AT-NET-02	DCCS GmbH	ASSIGNED PA	Jul 7, 2015	abuse@grazkom.at via AT-GSTW-20061031
└ 91.143.104.128/27	32	LETSPRINT-ZFW-AT-NET-01	Let`s Print Holding AG	ASSIGNED PA	Apr 15, 2015	abuse@grazkom.at via AT-GSTW-20061031
└ 91.143.104.168/29	8	INT-NEUROTH-AT-NET-01	Neuroth International AG	ASSIGNED PA	Sep 5, 2025	abuse@grazkom.at via AT-GSTW-20061031
└ 91.143.104.176/28	16	CITYCOM_DMZ-AT-NET-02	Citycom Telekommunikation GmbH	ASSIGNED PA	May 24, 2016	abuse@grazkom.at via AT-GSTW-20061031
└ 91.143.104.192/28	16	LABENE-WARTIN39-AT-NET-01	LABENE Medizin-Software GmbH	ASSIGNED PA	Apr 9, 2018	abuse@grazkom.at via AT-GSTW-20061031

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

Announced by

Origin network

RPKI

ROA prefix	ASN	Max len	Anchor	Verdict
91.143.96.0/20	AS29056	/24	RIPE	RPKI valid

IRR

Origin	Registry	Description	Maintainer	Modified
AS29056	RIPE	Citycom Telekommunikation GmbH	CITYCOM-AT-MNT	Feb 5, 2026