Data as of Nov 5, 2026

77.75.23.0/24

No anonymizer space · no proxy exits in 30 days

Citycom Telekommunikation GmbH · space held by SysUP IT GmbH & Co KG

Announcement

this exact prefix

No RPKI

Announced by

Type

Unknown

Risk

40 / 100 · Medium

Leased space

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
77.75.16.0/21	2,048	AT-SYSUP-20070502	SysUP IT GmbH & Co KG (ORG-SHUH1-RIPE) · AT	ALLOCATED PA	May 2, 2007	abuse@sysup.at
└ 77.75.23.0/28	16	S-R-E-Infra01	SysUP IT GmbH & Co KG (ORG-SHUH1-RIPE) · AT	ASSIGNED PA	Oct 11, 2010	abuse@sysup.at
└ 77.75.23.16/29	8	S-O-I-Public	SysUP IT GmbH & Co KG (ORG-SHUH1-RIPE) · AT	ASSIGNED PA	Sep 29, 2016	abuse@sysup.at
└ 77.75.23.24/29	8	c006330-O-E	SysUP IT GmbH & Co KG	ASSIGNED PA	Oct 21, 2025	abuse@sysup.at via AT-SYSUP-20070502
└ 77.75.23.40/29	8	c005280-O-E	SysUP IT GmbH & Co KG (ORG-SHUH1-RIPE) · AT	ASSIGNED PA	Sep 29, 2016	abuse@sysup.at
└ 77.75.23.48/29	8	c006074-O-E	SysUP IT GmbH & Co KG (ORG-SHUH1-RIPE) · AT	ASSIGNED PA	Sep 29, 2016	abuse@sysup.at
└ 77.75.23.64/30	4	S-O-E-DNS	SysUP IT GmbH & Co KG	ASSIGNED PA	Oct 21, 2025	abuse@sysup.at via AT-SYSUP-20070502
└ 77.75.23.68/30	4	S-O-E-Facility	SysUP IT GmbH & Co KG	ASSIGNED PA	Oct 21, 2025	abuse@sysup.at via AT-SYSUP-20070502
└ 77.75.23.72/30	4	S-O-E-Mail	SysUP IT GmbH & Co KG	ASSIGNED PA	Oct 21, 2025	abuse@sysup.at via AT-SYSUP-20070502
└ 77.75.23.88/29	8	S-O-E-PENTEST	SysUP IT GmbH & Co KG	ASSIGNED PA	Oct 21, 2025	abuse@sysup.at via AT-SYSUP-20070502
└ 77.75.23.96/30	4	c006548-O-E	SysUP IT GmbH & Co KG	ASSIGNED PA	Oct 21, 2025	abuse@sysup.at via AT-SYSUP-20070502
└ 77.75.23.100/30	4	S-O-E-DNS5	unknown	ASSIGNED PA	Dec 22, 2025	abuse@sysup.at via AT-SYSUP-20070502

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