Which company owns MAC address prefix B0:3E:B0?

MAC address prefix B0:3E:B0 is registered to MICRODIA Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with B0:3E:B0 has a network interface built by MICRODIA Ltd..

What is the OUI B0:3E:B0?

B0:3E:B0 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to MICRODIA Ltd.. It covers every address from B0:3E:B0:00:00:00 to B0:3E:B0:FF:FF:FF, or 16,777,216 addresses in total. It is also written B0-3E-B0.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in B0:3E:B0:00:00:00 that is B0:3E:B0 — and look that prefix up in the IEEE OUI registry. If the second-lowest bit of the first octet is set, the address is locally administered (a randomized or private MAC), which belongs to no manufacturer and will not resolve; modern phones and laptops use these by default on each network.

Where is MICRODIA Ltd. located?

MICRODIA Ltd. is listed at Suites 1608-1610, 16/F., Prosperity Centre, 25 Chong Yip Street, Kwun Tong Kowloon, HK 000000 in the IEEE OUI registry entry for B0:3E:B0. This is the address the organization registered with the IEEE, which may differ from its current operating address.

MICRODIA Ltd.

MAC address prefix B0:3E:B0 is registered to MICRODIA Ltd. in the IEEE OUI registry. Any device whose MAC address begins with B0:3E:B0 has a network interface built by MICRODIA Ltd.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address — it covers every MAC from B0:3E:B0:00:00:00 to B0:3E:B0:FF:FF:FF.

OUI prefix: B0:3E:B0
Hyphen form: B0-3E-B0
MAC range: B0:3E:B0:00:00:00 – B0:3E:B0:FF:FF:FF
Addresses in block: 16,777,216
Organization: MICRODIA Ltd.
Address: Suites 1608-1610, 16/F., Prosperity Centre, 25 Chong Yip Street, Kwun Tong Kowloon, HK 000000
Source: IEEE OUI registry

Have a full MAC address? Look it up— we'll also tell you if it's a randomized (private) address rather than a real manufacturer prefix.

Assignment history (2)

The IEEE registry publishes current state only — this is the change record we've kept since we started tracking it daily.

2016-07-29Assigned to "MICRODIA Ltd."
archived source →
2026-07-17Assigned to "MICRODIA Ltd."

Nearby in the registry

The prefixes assigned immediately before and after B0:3E:B0:

FAQ

Which company owns MAC address prefix B0:3E:B0?: MAC address prefix B0:3E:B0 is registered to MICRODIA Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with B0:3E:B0 has a network interface built by MICRODIA Ltd..
What is the OUI B0:3E:B0?: B0:3E:B0 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to MICRODIA Ltd.. It covers every address from B0:3E:B0:00:00:00 to B0:3E:B0:FF:FF:FF, or 16,777,216 addresses in total. It is also written B0-3E-B0.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in B0:3E:B0:00:00:00 that is B0:3E:B0 — and look that prefix up in the IEEE OUI registry. If the second-lowest bit of the first octet is set, the address is locally administered (a randomized or private MAC), which belongs to no manufacturer and will not resolve; modern phones and laptops use these by default on each network.
Where is MICRODIA Ltd. located?: MICRODIA Ltd. is listed at Suites 1608-1610, 16/F., Prosperity Centre, 25 Chong Yip Street, Kwun Tong Kowloon, HK 000000 in the IEEE OUI registry entry for B0:3E:B0. This is the address the organization registered with the IEEE, which may differ from its current operating address.