MAC address vendor

3M Company — 3 OUI prefixes (MA-L)

Primary prefix
08:00:21
Block
MA-L
Status
Active

Summary

// what this is
3M is registered to MAC prefix 08:00:21 and 2 more in the IEEE OUI database. When a device's MAC address begins with 08:00:21, that block was registered by 3M — the OUI identifies the maker of the network hardware, which is not always the brand on the device.
// analyst note
A globally-administered 08:00:21, 00:15:C2, or 00:06:49 MAC indicates 3M-registered hardware, most plausibly telecom/networking equipment given the Telecom Division registrant and the NID product match; company substance is supported by three distinct OUI assignments plus a concrete product listing rather than a bare registration alone.
[ 01 ] — Context

About this vendor.

Updated  ·  Confidence: Medium  ·  6 sources  ·  How this page is checked

A MAC address starting with 08:00:21 belongs to 3M Company's Telecom Division (Austin, TX), and is typically seen on telecom demarcation-point hardware such as network interface device (NID) enclosures.

3M holds three separate MA-L (24-bit OUI) registrations rather than one: 08:00:21 under "3M COMPANY" (Telecom Division, Austin, TX, US), 00:15:C2 under "3M Germany" (Neuss, DE), and 00:06:49 under "3M Deutschland GmbH" (Neuss, DE). All three are individually assigned, single-registrant blocks — not sub-allocations of a shared IEEE base.

The multiple registrations, plus a concrete 3M-branded product match, point to genuine company substance rather than a bare shell registration. A "3M MODEL 3M-0807-01 NETWORK INTERFACE DEVICE (NID) COMMUNICATION ENCLOSURE" — telecom demarcation-point hardware consistent with the 08:00:21 registrant's "Telecom Division" name — was found listed on a retail marketplace.

3M's own corporate history corroborates the Austin, TX address: the company built an "Austin Center" in the 1980s to co-locate with Texas telecom and high-tech firms. Current 3m.com pages (found via search-result titles; a direct fetch of the communications-infrastructure page timed out) list active "Communications Infrastructure," "Communications," and "Access Network" product lines, so this corroboration is Likely rather than fully Confirmed.

No CVE, malware, or vulnerability association was found for 3M network/telecom devices, or for MAC prefix 08:00:21 specifically, as of an August 2026 web search. A direct NVD search-results fetch did not render (JavaScript-driven page), so this covers general web search coverage rather than a confirmed empty NVD query.

No registration date exists for any of these three OUIs in the source registries or in a third-party aggregator checked (cleancss.com) — no date should be read into or written for this entry.

Device class
Telecom demarcation-point / network interface device (NID) hardware [Likely] — product listing for 3M-0807-01 NID enclosure
Registrant (08:00:21)
3M COMPANY, Telecom Division, Austin, TX, US 78726-9000 [Confirmed] — the IEEE MA-L registry
Registrant (00:15:C2)
3M Germany, Carl Schurz Str. 1, Neuss, NRW (country field printed "US" in the source row — an apparent registry data artifact, not evidence of a US address) [Confirmed as printed] — the IEEE MA-L registry
Also seen on
No independent MAC-prefix fingerprinting (Wireshark OUI threads, IoT scan writeups) was found for 08:00:21 in this search [Unknown]
Security context
No CVE/malware association found as of an August 2026 web search [Likely — general search coverage, NVD query itself did not render]
IEEE assignment (08
00:21): 3M COMPANY, Telecom Division, Austin, TX, US 78726-9000 [Confirmed] — the IEEE MA-L registry assignment 080021
IEEE assignment (00
15:C2): 3M Germany, Carl Schurz Str. 1, Neuss, NRW, printed country "US", 41453 [Confirmed] — the IEEE MA-L registry assignment 0015C2
IEEE assignment (00
06:49): 3M Deutschland GmbH, Carl-Schurz-Str. 1, Neuss, DE D-41453 [Confirmed] — the IEEE MA-L registry assignment 000649
Registry / block size
MA-L (24-bit OUI) x3; no MA-M or MA-S (36-bit) entries found for any 3M entity [Confirmed] — the IEEE MA-L registry, the IEEE MA-M registry (no matching rows)
Company status
active (Minnesota Mining and Manufacturing Co., NYSE: MMM) [Confirmed] — en.wikipedia.org/wiki/3M
Device types
telecom demarcation-point hardware / network interface device (NID) enclosures [Likely] — 3M-0807-01 product listing
Notable products
3M-0807-01 Network Interface Device (NID) Communication Enclosure [Likely] — retail marketplace listing (amazon.com)
Company substance
identifiable multinational company with documented product/device context and three separate OUI assignments — not a bare single-OUI shell registration [Likely] — company-histories.com (3M Austin Center history), product listing, 3m.com search results
Security association
no CVE/malware association found as of an August 2026 web search [Likely] — general web search; NVD search page did not render for direct confirmation
Date registered
Unknown — no date column exists in the source registries, and no date field was shown by the third-party aggregator checked [Confirmed] — the IEEE MA-L registry, the IEEE MA-M registry, cleancss.com/mac-lookup/08-00-21
Shared-base caveat
not applicable — none of these three OUIs are large IEEE-held shared bases; each is a normal single-registrant MA-L assignment [Confirmed] — the IEEE MA-L registry
[ 02 ] — OUI prefixes

Assignments by IEEE.

3
// registered prefixes3
  1. 08:00:21MA-L
  2. 00:15:C2MA-L
  3. 00:06:49MA-L
[ 03 ] — Related

Keep digging.