MAC address vendor

Lear Corporation — 8 prefixes (MA-L)

Primary prefix
00:1A:37
Block
MA-L
Status
Active

Summary

// what this is
Lear is registered to MAC prefix 00:1A:37 and 7 more in the IEEE OUI database. When a device's MAC address begins with 00:1A:37, that block was registered by Lear — the OUI identifies the maker of the network hardware, which is not always the brand on the device.
// analyst note
A Lear OUI plausibly identifies automotive E-Systems hardware (in-vehicle Ethernet/ECU/wiring-harness class), but no source maps a specific prefix to a specific named product; treat device-type attribution as Likely, not Confirmed. Org-name spelling variance in the source registry is a data artifact, not evidence of multiple companies.
[ 01 ] — Context

About this vendor.

Updated  ·  Confidence: Medium

Lear Corporation is a Southfield, Michigan-headquartered automotive supplier (NYSE: LEA) founded in 1917, organized into two segments — Seating and E-Systems — with roughly 173,700 employees across 253 manufacturing, engineering, and administrative locations in 37 countries as of late 2024. The IEEE MA-L registry carries eight distinct OUI blocks under three spelling variants of the company name ("LEAR", "Lear Corporation", "Lear Corporation GmbH"), which this pipeline's slug logic correctly collapses into one consolidated vendor entry rather than eight thin per-prefix pages. Five of the eight blocks trace to Lear's Kronach, Germany facility and three to a Valls, Spain facility — both real manufacturing/engineering addresses consistent with Lear's known European E-Systems footprint, not placeholder registrations. Lear's E-Systems division explicitly markets in-vehicle Ethernet, wiring-harness, power-distribution, and electronic-control-unit hardware, which plausibly corresponds to the device class behind these OUI assignments, though no source ties any single prefix to a named product. No vendor-lear row exists yet in this site's own enrichment records; this entry is a new consolidation candidate queued in NEXT-BATCH-oui.md.

Master status
no vendor-lear row currently exists in this site's own enrichment records; this is a new/pending vendor-consolidation candidate queued at this site's own enrichment records:11 [Confirmed] — this site's own enrichment records, this site's own enrichment records
IEEE assignment
8 prefixes → Lear Corporation, registered under three org-name spelling variants ("LEAR", "Lear Corporation", "Lear Corporation GmbH") that consolidate to this single vendor entry [Confirmed] — the IEEE MA-L registry (repo-local IEEE MA-L mirror)
Registry / block size
MA-L (24-bit OUI) x8; no matching MA-M or MA-S assignments found for "Lear" [Confirmed] — the IEEE MA-L registry, the IEEE MA-M registry, the IEEE MA-S registry
Registered addresses
two clusters — Industriestrasse 48, Kronach, Bavaria, DE 96317 (5 of 8 prefixes) and Carrer Fuster 54, Valls, Tarragona, ES 43800 (3 of 8 prefixes); corporate HQ is Southfield, Michigan, US [Confirmed] — the IEEE MA-L registry; https://en.wikipedia.org/wiki/Lear_Corporation
Company status
active, publicly traded (NYSE: LEA), ~173,700 employees, 253 locations in 37 countries as of Dec 2024 [Confirmed] — https://en.wikipedia.org/wiki/Lear_Corporation, https://www.sec.gov/Archives/edgar/data/842162/000162828023026599/lear-sx3asr.htm
Device types
automotive Ethernet / in-vehicle network hardware — wiring harnesses, power distribution modules, electronic control units, connectors, via Lear's E-Systems division [Likely] — https://www.lear.com/technology/e-systems, https://www.lear.com/newsroom/lear-ims-connector-systems-partner-on-high-speed-ethernet-solutions (no source ties a specific prefix to a named product)
Notable products
E-Systems electrical distribution systems; Seating (Lear's two business segments) [Confirmed] — https://en.wikipedia.org/wiki/Lear_Corporation
Verified sample prefixes (all MA-L, Lear-family org names)
00:1A:37, 48:C5:8D, 48:16:93, A4:97:8A, 88:50:46, 14:39:2F, 34:4E:2F, E8:A9:27 [Confirmed] — the IEEE MA-L registry
Org-name variance
the source registry itself carries "LEAR" (all-caps), "Lear Corporation", and "Lear Corporation GmbH", plus a diacritic variant ("Industriestrasse" vs "Industriestraße") across the 8 rows — source-data inconsistency in the cached IEEE file, not a transcription error; that all 8 rows represent one corporate entity is Likely but not explicitly stated by the registry data itself
[Likely] — the IEEE MA-L registry
Security context
no vendor-specific advisories, CVEs, or incident reports tied to Lear MAC/OUI-tagged devices surfaced in this light pass; absence read as "not found in this pass," not as "confirmed clean" [Unknown] — no source found
Date caveat
maclookup.app's page for 00:1A:37 shows a "first registration: 29 November 2006" — this is a maclookup.app database-scrape artifact, not an IEEE-published fact; IEEE's own MA-L registry publishes no assignment/registration dates, so no date is recorded for these prefixes
[Confirmed] — https://maclookup.app/vendors/lear-corporation
Related vendors
none identified [Unknown] — no source found
[ 02 ] — OUI prefixes

Assignments by IEEE.

8
// registered prefixes8
  1. 00:1A:37MA-L
  2. 48:C5:8DMA-L
  3. 48:16:93MA-L
  4. A4:97:8AMA-L
  5. 88:50:46MA-L
  6. 14:39:2FMA-L
  7. 34:4E:2FMA-L
  8. E8:A9:27MA-L
[ 03 ] — Related

Keep digging.