Which company owns MAC address prefix 14:44:4A?

MAC address prefix 14:44:4A is registered to Apollo Seiko Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 14:44:4A has a network interface built by Apollo Seiko Ltd..

What is the OUI 14:44:4A?

14:44:4A is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Apollo Seiko Ltd.. It covers every address from 14:44:4A:00:00:00 to 14:44:4A:FF:FF:FF, or 16,777,216 addresses in total. It is also written 14-44-4A.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 14:44:4A:00:00:00 that is 14:44:4A — 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 Apollo Seiko Ltd. located?

Apollo Seiko Ltd. is listed at 2271-7 Jinba Gotenba Shizuoka JP 412-0047 in the IEEE OUI registry entry for 14:44:4A. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Apollo Seiko Ltd.

MAC address prefix 14:44:4A is registered to Apollo Seiko Ltd. in the IEEE OUI registry. Any device whose MAC address begins with 14:44:4A has a network interface built by Apollo Seiko 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 14:44:4A:00:00:00 to 14:44:4A:FF:FF:FF.

OUI prefix: 14:44:4A
Hyphen form: 14-44-4A
MAC range: 14:44:4A:00:00:00 – 14:44:4A:FF:FF:FF
Addresses in block: 16,777,216
Organization: Apollo Seiko Ltd.
Address: 2271-7 Jinba Gotenba Shizuoka JP 412-0047
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.

2018-12-21Assigned to "Apollo Seiko Ltd."
archived source →
2026-07-17Assigned to "Apollo Seiko Ltd."

Nearby in the registry

The prefixes assigned immediately before and after 14:44:4A:

FAQ

Which company owns MAC address prefix 14:44:4A?: MAC address prefix 14:44:4A is registered to Apollo Seiko Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 14:44:4A has a network interface built by Apollo Seiko Ltd..
What is the OUI 14:44:4A?: 14:44:4A is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Apollo Seiko Ltd.. It covers every address from 14:44:4A:00:00:00 to 14:44:4A:FF:FF:FF, or 16,777,216 addresses in total. It is also written 14-44-4A.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 14:44:4A:00:00:00 that is 14:44:4A — 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 Apollo Seiko Ltd. located?: Apollo Seiko Ltd. is listed at 2271-7 Jinba Gotenba Shizuoka JP 412-0047 in the IEEE OUI registry entry for 14:44:4A. This is the address the organization registered with the IEEE, which may differ from its current operating address.