MAC address vendor

AimValley B.V. — 00:0F:25 (MA-L)

Primary prefix
00:0F:25
Block
MA-L
Status
Active

Summary

// what this is
AimValley is registered to MAC prefix 00:0F:25 in the IEEE OUI database. When a device's MAC address begins with 00:0F:25, that block was registered by AimValley — the OUI identifies the maker of the network hardware, which is not always the brand on the device.
// analyst note
00:0F:25 is AimValley's sole confirmed IEEE block; identifies AimValley-designed telecom/datacom/medical networking hardware, not consumer devices. Now a Technolution subsidiary, so future hardware may not carry this prefix.
[ 01 ] — Context

About this vendor.

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

A MAC address starting with 00:0F:25 belongs to AimValley B.V., a Dutch engineering design firm, and typically shows up on OEM telecom, datacom, or medical networking equipment built by or with AimValley rather than on off-the-shelf consumer routers or IoT devices.

AimValley was founded in 2003 by Theo Muijs and Pieter de Boer in Hilversum, Netherlands, and operated as an independent engineering-design house until it was acquired by Technolution (Gouda, NL) on 2026-03-04. It maintains an active corporate site, LinkedIn, Facebook, and YouTube presence, plus listings in Company.info, ZoomInfo, Crunchbase, RocketReach, and DigiKey's design-services directory.

The company's own site describes it as a design-services firm under the tagline "Delivering Solutions for a Connected World," building custom Ethernet switches, protocol converters, FPGA-based acceleration and packet-processing hardware, high-speed transmission boards in the 400G-800G class, specialized networking/breakout cards, and medical networking devices such as network recorders and distribution panels. It also offers AimOS, an in-house hardened Ethernet operating system, and serves telecommunications, healthcare, industrial/transportation, and defense/aerospace customers.

Only one IEEE MA-L block, 00:0F:25, was found assigned to AimValley B.V. across the local the IEEE MA-L registry and the IEEE MA-S registry registries — no second MA-L, MA-M, or MA-S row turned up for the company, so this prefix represents its entire confirmed IEEE footprint rather than one block among many.

No CVE, security advisory, or malware/botnet association naming AimValley B.V. or its AimOS/hardware products was found as of an August 2026 search. A CVE with a superficially similar name, CVE-2025-0189 ("Aim Uncontrolled Resource Consumption"), belongs to an unrelated software project (aimhubio/Aim Stack) and does not apply here.

Device class
OEM telecom/datacom and medical networking equipment (Ethernet switches, protocol converters, high-speed transmission boards, network recorders) — not a consumer end-device brand
IEEE assignment
00:0F:25 → AimValley B.V. [Confirmed] — the IEEE MA-L registry 000F25
Registry / block size
MA-L (24-bit OUI); single confirmed block for this vendor [Confirmed] — the IEEE MA-L registry 000F25
HQ / country
Utrechtseweg 38, Hilversum NH NL 1223 TV, Netherlands [Confirmed] — the IEEE MA-L registry 000F25
Company status
active, now a subsidiary of Technolution (acquired 2026-03-04) [Confirmed] — https://tracxn.com/d/companies/aimvalley/__-KqvM9AyZH9viA2SpNT2s1Ab3kJprp6AJmKK5qW7vQo
Founding
founded 2003 by Theo Muijs and Pieter de Boer [Likely] — https://tracxn.com/d/companies/aimvalley/__-KqvM9AyZH9viA2SpNT2s1Ab3kJprp6AJmKK5qW7vQo
Device types
custom Ethernet switches, protocol converters, FPGA-based packet-processing hardware, 400G-800G transmission boards, medical networking devices (network recorders, distribution panels) [Confirmed] — https://www.aimvalley.com/
Notable products
AimOS (in-house hardened Ethernet operating system) [Confirmed] — https://www.aimvalley.com/
Verified sample prefix (MA-L, AimValley B.V.)
00:0F:25 [Confirmed] — the IEEE MA-L registry 000F25
Third-party date caveat
maclookup.app displays a "registered 12 February 2004" date for 00:0F:25; IEEE's own the IEEE MA-L registry publishes no assignment/registration date column, so this is a third-party database artifact, not an IEEE fact [Confirmed] — https://maclookup.app/macaddress/000f25
Security context
no CVE, advisory, or malware/botnet association found for AimValley B.V. or AimOS as of an August 2026 search; CVE-2025-0189 is an unrelated product from a different vendor [Likely] — general web/CVE search, no single canonical URL
Related vendors
Technolution (Gouda, NL) — parent company since 2026-03-04 acquisition [Confirmed] — https://tracxn.com/d/companies/aimvalley/__-KqvM9AyZH9viA2SpNT2s1Ab3kJprp6AJmKK5qW7vQo
Analyst note
00:0F:25 is AimValley's sole confirmed IEEE MA-L block; a MAC starting with this prefix indicates AimValley-designed telecom, datacom, or medical networking hardware, not a consumer device — but AimValley is now a Technolution subsidiary, so future hardware may not carry this prefix at all.
[ 02 ] — OUI prefixes

Assignments by IEEE.

1
// registered prefixes1
  1. 00:0F:25MA-L
[ 03 ] — Related

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