3 Greens Aviation Limited — OUI 00:22:F0 (MA-L)

A MAC address starting 00:22:F0 was registered to 3 Greens Aviation Limited, a small UK company based in Macclesfield, Cheshire, under IEEE's MA-L (24-bit OUI) registry. The block identifies the registrant of record, not a confirmed device category — no product page, spec sheet, or device-fingerprint source ties this prefix to a specific piece of aviation or other hardware.

UK Companies House records match the registrant to 3 GREENS AVIATION LIMITED, company number 03727434, incorporated 5 March 1999 and dissolved 24 August 2010. Its sole director's officer address, 10 Hedingham Close, Macclesfield, Cheshire, matches the OUI record's street and house number; the postcode suffix differs slightly between the two independent sources (SK10 3LZ on the OUI row vs SK10 3LS at Companies House), likely a transcription variant rather than a different address.

The company's filed business activity, SIC code 7487 "Other business activities," is a generic catch-all rather than an aviation- or electronics-specific code, and no filing history or web presence describes what it built or sold. IEEE does not publish an assignment date for OUI blocks, so no registration date is given beyond the company's own incorporation date.

Two unrelated organizations share a similar name and should not be confused with this entry: a second, currently active UK company also called 3 Greens Aviation Limited (company number 12343869, incorporated 2019, registered in Ramsgate, Kent), and a separate US-based "3-Green Aviation LLC" flight-training operation. Neither matches this OUI's registrant address, and both surfaced only because the search terms overlap.

No CVE, malware association, or security-research mention ties this OUI or the registrant's name to any documented incident as of an August 2026 search. Because the registrant dissolved in 2010 while IEEE does not revoke OUI allocations on company dissolution, any device encountered today carrying this prefix would run on hardware from a vendor no longer able to support or patch it.

Registrant

3 Greens Aviation Limited [Confirmed] — the IEEE MA-L registry 0022F0

Registry / block

MA-L (24-bit OUI), one /24 block; no other IEEE MA-L/MA-M/MA-S assignment found under this name [Confirmed] — the IEEE MA-L registry 0022F0; the IEEE MA-S registry; the IEEE MA-M registry

Registry address

10 Hedingham Close, Macclesfield, GB SK10 3LZ [Confirmed] — the IEEE MA-L registry 0022F0

Country

GB (United Kingdom) [Confirmed] — the IEEE MA-L registry 0022F0

Corporate match

UK Companies House number 03727434, incorporated 5 March 1999, dissolved 24 August 2010, address matches the OUI registrant [Confirmed] — UK Companies House record 03727434

Device class

Unknown — no product literature, spec sheet, avionics catalog, or device-fingerprint source found tying this prefix to specific hardware [Unknown, documented negative search] — cleancss.com mirror of the same IEEE record; adds no independent device data

IEEE assignment

00:22:F0 → 3 Greens Aviation Limited, registered Macclesfield, GB [Confirmed] — the IEEE MA-L registry 0022F0

Registry / block size

MA-L (24-bit OUI); single /24 block; no sibling IEEE MA-M/MA-S assignment found under this name [Confirmed] — the IEEE MA-L registry 0022F0; the IEEE MA-S registry; the IEEE MA-M registry

HQ / country

10 Hedingham Close, Macclesfield, GB SK10 3LZ (registry address) [Confirmed] — the IEEE MA-L registry 0022F0

Company status

Dissolved 24 August 2010 (UK Companies House 03727434; incorporated 5 March 1999) [Confirmed] — UK Companies House record 03727434

Nature of business

SIC 7487, "Other business activities" — a generic code, not aviation- or electronics-specific [Confirmed] — UK Companies House record 03727434

Device types

Unknown — no product, spec sheet, or device-fingerprint source found describing hardware carrying this prefix [Unknown, documented negative search] — cleancss.com/mac-lookup mirror (IEEE data only, no independent device info)

Notable products

Unknown [Unknown] — no source found

Distinct entities (do not confuse)

an unrelated, currently active UK company also named 3 Greens Aviation Limited (company number 12343869, Ramsgate, Kent, incorporated 2019), and a US "3-Green Aviation LLC" flight-training operation [Confirmed] — UK Companies House record 12343869

Allocated date

Unknown — IEEE publishes no OUI assignment/registration date [Unknown] — the IEEE MA-L registry

Security history

No CVE or malware association found as of an August 2026 search [Confirmed, documented negative search] — UK Companies House record 03727434 (dissolution fact); no security-research source found for the OUI itself

Analyst note

The registrant existed 1999–2010 with no surviving product documentation; the OUI block remains a valid, permanent IEEE allocation regardless of company dissolution, so a device seen with this prefix today runs on unsupported, unpatched legacy hardware from a defunct vendor

[Confirmed] — UK Companies House record 03727434