Gigaset Technologies GmbH — 2 prefixes (MA-L)

Gigaset Technologies GmbH holds two MA-L (24-bit OUI) blocks — 00:21:04 and 58:9E:C6 — both registered at Frankenstrasse 2, 46395 Bocholt, Germany, the company's longtime manufacturing site in North Rhine-Westphalia. The entity traces back to a Siemens telephone operation in Bocholt and was spun off in 2005, becoming Gigaset Communications GmbH after a 2008 private-equity acquisition; following self-administration in 2023, its assets were acquired by VTech Holdings (Hong Kong) on 5 April 2024 and the operating entity was renamed Gigaset Technologies GmbH. That history matters for OUI work: the IEEE registry still carries the older "Gigaset Communications GmbH" name on a third, related block (7C:2F:80), and two other Gigaset-branded but legally distinct entities — Gigaset Communications GmbH and Gigaset Digital Technology (Shenzhen) Co., Ltd. (14:B3:70) — appear separately in the registry and should not be folded into this vendor entry. Gigaset is best known as a European market leader in cordless DECT phones, alongside VoIP/IP and corded phones, Android smartphones, baby monitors, and the "Gigaset elements" smart-home/security line. A security caveat worth surfacing: in April 2021 a supply-chain attack compromised a Gigaset update server and pushed adware to older Android handsets (the malicious package com.redstone.ota.ui), capable of sending unauthorized messages and opening ad/gambling redirects; newer GS-series models were stated unaffected. As with all OUI data, the IEEE publishes no registration dates — any "date registered" on third-party lookup tools (e.g. "05 January 2010" for 7C:2F:80) is a database artifact, not an IEEE fact.

IEEE assignment

2 prefixes → Gigaset Technologies GmbH, registered Bocholt, NRW, DE [Confirmed] — IEEE MA-L

Registry / block size

MA-L (24-bit OUI); blocks 00:21:04 and 58:9E:C6 [Confirmed] — IEEE MA-L. NOTE: IEEE's public OUI data publishes NO assignment/registration date (the IEEE MA-L registry columns are only Registry, Assignment, Organization Name, Organization Address); the "05 January 2010" date third-party tools cite for the related 7C:2F:80 block is a database artifact, not an IEEE fact.

HQ / country

Frankenstrasse 2, 46395 Bocholt, NRW, Germany (registry address; also current operating HQ) [Confirmed] — IEEE MA-L, https://www.gigaset.com/hq_en/imprint/

Company status

active; renamed Gigaset Technologies GmbH after VTech acquisition (5 April 2024) [Confirmed] — https://www.gigaset.com/hq_en/imprint/, https://www.vtech.com/en/press_release/2024/vtech-completes-acquisition-of-assets-of-gigaset-communications-gmbh/

Device types

cordless DECT phones (Europe market leader), VoIP/IP phones, corded phones, Android smartphones, baby monitors, business telephony (Gigaset pro), smart-home/security ("Gigaset elements") [Confirmed] — https://www.gigaset.com/hq_en/, https://www.netify.ai/resources/macs/brands/gigaset

Notable products

Gigaset DECT handset line; Gigaset elements security system

Verified prefixes (all MA-L, Gigaset Technologies GmbH)

00:21:04, 58:9E:C6 [Confirmed] — IEEE MA-L

IEEE-registered name

registry blocks 00:21:04 and 58:9E:C6 carry "Gigaset Technologies GmbH"; the related 7C:2F:80 block still lists the legacy "Gigaset Communications GmbH" name [Confirmed] — IEEE MA-L; https://maclookup.app/vendors/gigaset-communications-gmbh

Company history

Siemens telephone operation in Bocholt → spun off 2005 → Gigaset Communications GmbH (2008 Arques acquisition) → self-administration 2023 → assets acquired by VTech Holdings (Hong Kong), 5 April 2024, renamed Gigaset Technologies GmbH [Confirmed] — https://en.wikipedia.org/wiki/Gigaset_Communications, https://www.vtech.com/en/press_release/2024/vtech-completes-acquisition-of-assets-of-gigaset-communications-gmbh/

Current parent

VTech Holdings Limited (Hong Kong) [Confirmed] — https://www.vtech.com/en/press_release/2024/vtech-completes-acquisition-of-assets-of-gigaset-communications-gmbh/

Security note

April 2021 supply-chain attack — compromised Gigaset update server pushed adware (com.redstone.ota.ui) to older Android handsets; newer GS-series stated unaffected. Legacy CVEs exist under the "Siemens Gigaset" brand (C450 IP, C475 IP, SE361 WLAN router). [Confirmed] — https://securityaffairs.com/116450/cyber-crime/gigaset-malware-supply-chain-attack.html, https://www.itpro.com/security/malware/359165/hackers-laced-gigaset-devices-with-malware-by-hijacking-an-update-server

Related vendors (separate registry entries — do NOT merge)

Gigaset Communications GmbH (7C:2F:80), Gigaset Digital Technology (Shenzhen) Co., Ltd. (14:B3:70) [Confirmed] — IEEE MA-L

Allocated date

Unknown — IEEE publishes no OUI registration dates [Unknown]

Analyst note

A Gigaset Technologies OUI on a globally-administered address reliably identifies genuine Gigaset hardware (DECT bases, IP phones, smart-home devices). Note the brand spans three legally distinct registry holders; treat 00:21:04 and 58:9E:C6 as this entity and 7C:2F:80 / 14:B3:70 as related-but-separate.