iComm HK Limited — 3 prefixes (MA-L)

A MAC address starting with A4:3E:A0, 58:04:54, or 3C:CF:5B was assigned to iComm HK Limited, a Hong Kong-registered hardware company, though it does not identify a specific known device line — no product, chipset, or device-category documentation for this registrant has been located.

The three MA-L blocks appear under two case-variant spellings of the same registrant: "iComm HK LIMITED" for A4:3E:A0, and "ICOMM HK LIMITED" for 58:04:54 and 3C:CF:5B. The latter two share a registered address; A4:3E:A0 carries a separate Hong Kong address. No MA-M or MA-S assignments were found under either spelling.

Hong Kong corporate registry records show a real, formerly-active company behind these OUIs: incorporated 2014-10-14 (CR# 2155264, BR# 63930838) and dissolved by deregistration on 2022-10-07. That gives the entry more substance than a bare single-OUI shell, but the company left no public website and no documented product line — device-aggregator sites tag it only with a generic "Hardware Manufacturer" classification, which is not independently corroborated.

Third-party lookup tools display "registered" dates of 2018-10-20 for A4:3E:A0 and 2015-11-17 for 3C:CF:5B; these are database artifacts from those tools, not IEEE facts, since IEEE's public OUI data carries no assignment-date field. This vendor is unrelated to the separately-registered "Shenzhen iComm Semiconductor CO.,LTD" OUI entry — the similar name is coincidental and the two should not be conflated.

IEEE assignment

3 prefixes → iComm HK Limited / ICOMM HK Limited (case-variant spellings), Hong Kong, HK [Confirmed] — the IEEE MA-L registry A43EA0, the IEEE MA-L registry 580454, the IEEE MA-L registry 3CCF5B — IEEE MA-L

Registry / block size

MA-L (24-bit OUI); 3 assignments; no MA-M or MA-S assignments found under this org name [Confirmed] — the IEEE MA-L registry A43EA0, the IEEE MA-L registry 580454, the IEEE MA-L registry 3CCF5B; the IEEE MA-M registry; the IEEE MA-S registry (no match)

Registered addresses

A4:3E:A0 — Room 702 Kowloon Building, 555 Nathan Road, Kowloon, HK. 58:04:54 and 3C:CF:5B — Suites 2302-6, 23/F Great Eagle Centre, 23 Harbour Road, Wanchai, HK [Confirmed] — the IEEE MA-L registry A43EA0, the IEEE MA-L registry 580454, the IEEE MA-L registry 3CCF5B

Country

Hong Kong (HK) [Confirmed] — the IEEE MA-L registry A43EA0

Company status

Dissolved by deregistration, 2022-10-07 (incorporated 2014-10-14, HK CR# 2155264, BR# 63930838) [Confirmed] — https://www.hkcorporationsearch.com/companies/2155264/

Device types

Unknown — no named products, chipsets, or device categories found in company or aggregator sources [Unknown] — searched https://www.ltddir.com/companies/icomm-hk-limited/, https://api.fingerbank.org/devices/26922, no vendor website located

Aggregator classification

Generic "Hardware Manufacturer" tag with a "120 combinations" device-count bucket on Fingerbank; not corroborated by a second source [Likely] — https://api.fingerbank.org/devices/26922

Security context

Unknown — no CVE, advisory, or abuse report located for this org as of an August 2026 search [Unknown]

Third-party date caution

maclookup.app displays non-IEEE "registered" dates (2018-10-20 for A4:3E:A0, 2015-11-17 for 3C:CF:5B); these are third-party database artifacts, not IEEE facts — IEEE's the IEEE MA-L registry publishes no assignment-date field and neither date should be presented as an IEEE registration date

[Confirmed] — https://maclookup.app/macaddress/a43ea0, https://maclookup.app/macaddress/3CCF5B

Related vendors

None confirmed. Distinct from the unrelated, separately-registered "Shenzhen iComm Semiconductor CO.,LTD" OUI entry (/mac/vendor/shenzhen-icomm-semiconductor/) — similarly-named but a different company; do not conflate [Confirmed] — the IEEE MA-L registry (org name comparison)