GN Netcom A/S (Jabra) — 8 prefixes (MA-L)

GN Netcom A/S is the historic OUI registrant name behind the Jabra headset brand, holding eight MA-L blocks: 00:1D:82, 00:13:17, 50:1A:A5, 00:1A:45, 1C:48:F9, 00:16:8F, 00:23:78, and 50:C9:71. The registry addresses split between Lautrupbjerg 7 and Metalbuen 66, both in Ballerup, Denmark — GN Netcom's long-standing headquarters district. The company traces back to GN Store Nord (GN Great Nordic), a Danish conglomerate founded in 1869; GN Netcom was spun off as a dedicated hands-free communications unit in 1987 and acquired the San Diego-based Jabra Corporation in August 2000, after which "Jabra" became the consumer-facing brand for the company's Bluetooth and DECT headsets, USB conferencing bases, and call-center/UC audio hardware. A separate, unrelated OUI (00:07:A4, "GN Netcom Ltd.," registered in England) belongs to a distinct legal entity and is excluded from this slug. As with other Bluetooth-audio vendors, Jabra products have been swept up in industry-wide chipset vulnerabilities — the KNOB and BIAS pairing-downgrade flaws, and 2025's Airoha RACE debug-protocol issues — none of which are specific to any one of the eight prefixes covered here.

Organization (registrant name)

GN Netcom A/S [Confirmed] — the IEEE MA-L registry

Registry / block size

MA-L (24-bit OUI) for all 8 assigned prefixes [Confirmed] — the IEEE MA-L registry

Prefixes (8 total)

00:1D:82, 00:13:17, 50:1A:A5, 00:1A:45, 1C:48:F9, 00:16:8F, 00:23:78, 50:C9:71 [Confirmed] — the IEEE MA-L registry, cross-confirmed by https://maclookup.app/vendors/gn-netcom-as

Registry addresses

Lautrupbjerg 7, Ballerup, DK-2750, Denmark (00:1D:82, 50:1A:A5, 1C:48:F9, 00:23:78, 50:C9:71) and Metalbuen 66, Ballerup/Skovlunde, DK-2750, Denmark (00:13:17, 00:1A:45, 00:16:8F) [Confirmed] — the IEEE MA-L registry

No IEEE-published date

IEEE's the IEEE MA-L registry carries no assignment/registration date column; any "date registered" seen on third-party lookup tools (maclookup.app shows a spread from 2004-12-15 to 2015-11-17 across these 8 blocks) is a database artifact, not an IEEE fact [Confirmed absence of IEEE date / Likely for the third-party date spread, single-source] — https://maclookup.app/vendors/gn-netcom-as

IANA Reference

not applicable, left blank [Confirmed] — n/a (no RFC governs vendor OUI assignment)

Company identity

Danish hands-free communications company, part of GN Store Nord (GN Great Nordic, founded 1869); spun off as GN Netcom in 1987; acquired Jabra Corporation (San Diego) in August 2000 and now trades under the Jabra brand, HQ Ballerup, Denmark [Confirmed] — https://headsetplus.com/blogs/jabra-headsets/history-of-jabra-gn-netcom-headsets, https://www.headsets.com/pages/gnnetcom-about

Company substance verdict

substantive — identifiable, long-operating company with product context (Jabra) and 8 distinct OUI assignments, not a bare single-OUI shell [Confirmed] — https://maclookup.app/vendors/gn-netcom-as

Device types

Jabra-branded Bluetooth/DECT headsets, USB conferencing bases/dongles, call-center and UC audio hardware [Confirmed at company level; Unknown which specific prefix maps to which product] — https://headsetplus.com/blogs/jabra-headsets/history-of-jabra-gn-netcom-headsets

Excluded distinct entity

00:07:A4 "GN Netcom Ltd." (Sedling Road, England NE38 9BZ) is a separate registrant string and NOT part of this slug [Confirmed] — the IEEE MA-L registry

Security context

Jabra Bluetooth products are affected by industry-wide chipset/protocol flaws — KNOB (CVE-2019-9506) and BIAS (CVE-2020-10135) legacy pairing/key-negotiation issues, acknowledged in Jabra's own security bulletin, and 2025 CVE-2025-20700/20701/20702 in Airoha's RACE debug protocol (multi-brand, firmware fixes acknowledged) [Confirmed CVE existence and Jabra acknowledgment / Likely as applying broadly across the 8 OUIs rather than itemized per-prefix] — https://www.jabra.com/_/media/Files/Security-Center/Jabra-Security-Incident-Bulletin-211120-WEB.pdf?la=en, https://www.jabra.com/supportpages/security-center, https://cyberpress.org/new-bluetooth-headphone-vulnerabilities/

MAM / OUI-36 assignments

none found for "GN Netcom" in the IEEE MA-M registry or the IEEE MA-S registry [Confirmed] — the IEEE MA-M registry, the IEEE MA-S registry