Meta Platforms, Inc. — 12 prefixes (MA-L)

Meta Platforms, Inc. (the corporate successor to Facebook, Inc. following the 2021 rebrand) holds 12 MA-L OUI blocks registered under the exact org-name string "Meta Platforms, Inc." in IEEE's public registry. Eleven of the twelve blocks carry the registered address 1601 Willow Rd, Menlo Park, CA 94025, US — Meta's long-standing legacy headquarters string — while one block (B4:17:A8) instead lists "1 Hacker Way, Menlo Park, CA 94025, US," an older but equivalent HQ address for the same company. Meta ships MAC-address-bearing hardware across several product lines — Meta Quest VR/MR headsets, Ray-Ban Meta smart glasses, and the now-discontinued Portal video-calling devices — which is consistent with a company holding a dozen distinct OUI blocks rather than a bare single-OUI shell registration. A related-but-distinct registrant, "Facebook Inc" (no comma, pre-rebrand name), holds two further MA-L blocks under the old corporate name; these are intentionally not folded into this entry's prefix list, mirroring the fact that no separate vendor-facebook page currently exists in this pipeline. Meta's VR subsidiary, Oculus VR, LLC, likewise holds its own distinct OUI registered under yet another company name in the same corporate family. As with all IEEE OUI data, the registry publishes no assignment or registration date for any block — any third-party "date registered" figure is a database artifact, not an IEEE fact, and none is recorded here.

IEEE assignment

12 MA-L prefixes → "Meta Platforms, Inc.", registered Menlo Park, CA, US [Confirmed] — the IEEE MA-L registry

Registry / block size

MA-L (24-bit OUI) only; no MA-M (the IEEE MA-M registry) or MA-S/OUI-36 (the IEEE MA-S registry) rows found for this org name [Confirmed] — the IEEE MA-M registry, the IEEE MA-S registry

Registered address

1601 Willow Rd, Menlo Park, CA 94025, US (11 of 12 blocks); B4:17:A8 lists "1 Hacker Way, Menlo Park, CA 94025, US" — same company, alternate/older HQ string [Confirmed] — the IEEE MA-L registry

Company status

active — publicly traded (NASDAQ: META), operating company [Confirmed] — https://www.sec.gov/Archives/edgar/data/1326801/000162828026025534/meta-12312025x10kars.htm

Verified prefixes (all MA-L, "Meta Platforms, Inc.")

48:05:60, CC:A1:74, C0:DD:8A, D0:B3:C2, 88:25:08, 94:F9:29, D4:D6:59, 78:C4:FA, B4:17:A8, 50:99:03, 80:F3:EF, 84:57:F7 [Confirmed] — the IEEE MA-L registry

Device types

Meta Quest VR/MR headsets, Ray-Ban Meta smart glasses, formerly Portal video-calling devices; no public source maps any one of these 12 prefixes to a specific named product line, so attribution is ecosystem-level only [Likely] — https://www.netify.ai/resources/macs/brands/meta

Related-but-distinct registrant

"Facebook Inc" (old corporate name, no comma) holds 2 separate MA-L blocks — 48:57:DD and A4:0E:2B — not part of this entry's prefix set; no vendor-facebook page exists yet in this pipeline [Confirmed] — the IEEE MA-L registry

Related subsidiary

Oculus VR, LLC holds its own distinct OUI, 2C:26:17, a separate company-name registration in the same corporate family [Confirmed] — https://www.netify.ai/resources/macs/brands/oculus

Registration/assignment date

Unknown / not applicable — IEEE's public the IEEE MA-L registry exposes only Registry, Assignment, Organization Name, Organization Address, with no date field; third-party "date registered" figures (e.g. maclookup.app) are database artifacts, not IEEE facts, and are not recorded [Confirmed as a data-availability statement] — the IEEE MA-L registry (schema), https://maclookup.app/vendors/meta-platforms-inc

Security context

no OUI/MAC-level vulnerabilities or abuse reports were found tied to these prefixes specifically; an unrelated app-layer controversy exists (2024-2025 reporting on Meta's Android apps and local-network tracking) but is not a MAC-registration issue and is not conflated with it here

[Likely] — https://www.eff.org/deeplinks/2025/06/protect-yourself-metas-latest-attack-privacy

Analyst note

company-substance verdict is SUBSTANTIVE, not a single-OUI shell — 12 distinct MA-L blocks, an identifiable major company, and clear hardware/product context together clear the abstention bar for this vendor entry.