Apption Labs Limited — 90:21:2E, B8:1F:5E, D0:D9:4F:80/28 (MEATER)

A MAC address starting with 90:21:2E or B8:1F:5E belongs to Apption Labs Limited, a UK company best known for MEATER wireless smart meat thermometers. A MAC inside the narrower D0:D9:4F:80/28 sub-block also belongs to Apption Labs — but only within that slice; the wider D0:D9:4F:00/24 base is IEEE-administered and shared among many unrelated companies.

Apption Labs Limited is an active UK limited company, Companies House #09893626, incorporated 30 November 2015. The company itself reports 2 January 2015 as its founding date, with MEATER as its first product. Traeger Grills acquired Apption Labs in July 2021. Registry rows list two Leicester, UK addresses, both corroborated by independent UK business directories.

MEATER thermometers pair a Bluetooth LE probe with a WiFi-enabled charging dock or hub for cloud connectivity, and that dock's WiFi radio is the plausible carrier of an Apption Labs MAC on a home network, per Apption Labs' own product documentation. No third-party device-fingerprint source was found tying any of the three prefixes to observed MEATER traffic, so that specific link stays Unknown as of an August 2026 search.

No CVE is recorded for MEATER or Apption Labs products as of an August 2026 search. Apption Labs publishes a formal vulnerability disclosure policy — reports to security@meater.com, acknowledgment within 7 days, resolution targeted within 90 days — a positive signal for a consumer-IoT vendor, though not evidence of incident history either way.

Vendor

Apption Labs Limited (also filed as "Apption Labs Ltd") [Confirmed] — the IEEE MA-L registry 90212E, the IEEE MA-L registry B81F5E, the IEEE MA-M registry D0D94F8

Registry blocks

90:21:2E (MA-L /24), B8:1F:5E (MA-L /24), D0:D9:4F:80/28 (MA-M sub-block) [Confirmed] — the IEEE MA-L registry 90212E, the IEEE MA-L registry B81F5E, the IEEE MA-M registry D0D94F8

Device class

Consumer IoT wireless smart meat thermometer (MEATER, MEATER Block) [Likely] — https://meater.com/products/meater-block

Shared-base caution

D0:D9:4F:00/24 is IEEE-administered and sub-divided into 15 MA-M sub-allocations, 14 of them to unrelated companies — only D0:D9:4F:80/28 is Apption Labs' [Confirmed] — the IEEE MA-M registry D0D94F8

Security posture

Formal vulnerability disclosure policy published; no CVE on record as of August 2026 [Confirmed] — https://meater.com/vulnerability-disclosure

IEEE assignment

90:21:2E, B8:1F:5E → "Apption Labs Ltd" / "Apption Labs Limited", registered Leicester, GB [Confirmed] — the IEEE MA-L registry 90212E, the IEEE MA-L registry B81F5E

Registry / block size

2× MA-L (24-bit OUI, /24 each) + 1× MA-M (28-bit sub-block of the shared D0:D9:4F base) [Confirmed] — the IEEE MA-L registry 90212E, the IEEE MA-L registry B81F5E, the IEEE MA-M registry D0D94F8. NOTE: IEEE's public OUI/MA-M data (Registry, Assignment, Organization Name, Organization Address columns only) publishes no assignment/registration date; none is asserted here.

HQ / country

Registry addresses 66 Commercial Square, Leicester LE2 7SR, GB and 7-8 Westbridge Close, Leicester LE3 5LW, GB; current Companies House registered office is North Finchley, London (a filings address, not an operating address) [Confirmed] — the IEEE MA-L registry 90212E, the IEEE MA-L registry B81F5E, the IEEE MA-M registry D0D94F8, https://find-and-update.company-information.service.gov.uk/company/09893626

Company status

active, UK company #09893626, incorporated 2015-11-30 [Confirmed] — https://find-and-update.company-information.service.gov.uk/company/09893626

Device types

wireless smart meat thermometer (MEATER, MEATER Block) — Bluetooth LE probe + WiFi dock/hub [Likely] — https://meater.com/products/meater-block

Notable products

MEATER (Apption Labs' self-reported first product, founded 2015-01-02 per its own site) [Confirmed] — https://meater.eu/about-us

Verified sample prefixes

90:21:2E (MA-L), B8:1F:5E (MA-L), D0:D9:4F:80/28 (MA-M) [Confirmed] — the IEEE MA-L registry 90212E, the IEEE MA-L registry B81F5E, the IEEE MA-M registry D0D94F8

Shared-base caution

D0:D9:4F:00/24 is registered to "IEEE Registration Authority" and sub-divided into 15 MA-M assignees, 14 of them unrelated (e.g. Mitsubishi Electric US, Optigo Networks); only D0:D9:4F:80/28 is Apption Labs' [Confirmed] — the IEEE MA-M registry D0D94F8

Parent company

Traeger Grills, acquired Apption Labs July 2021 [Confirmed] — https://meater.eu/about-us

Security disclosure

formal vulnerability-disclosure policy published (security@meater.com, 7-day acknowledgment, 90-day resolution target); no CVE on record as of an August 2026 search [Confirmed] — https://meater.com/vulnerability-disclosure

Analyst note

A MAC in 90:21:2E, B8:1F:5E, or specifically within D0:D9:4F:80/28 identifies Apption Labs (MEATER) hardware; a MAC elsewhere in D0:D9:4F does not, since that base carries 15 MA-M sub-allocations, 14 of them unrelated vendors.