Which company owns MAC address prefix F0:77:D0?

MAC address prefix F0:77:D0 is registered to Xcellen in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with F0:77:D0 has a network interface built by Xcellen.

What is the OUI F0:77:D0?

F0:77:D0 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Xcellen. It covers every address from F0:77:D0:00:00:00 to F0:77:D0:FF:FF:FF, or 16,777,216 addresses in total. It is also written F0-77-D0.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in F0:77:D0:00:00:00 that is F0:77:D0 — 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 Xcellen located?

Xcellen is listed at 15F KINS Tower 25-1,Jeongja-dong,Bungdang-gu, Seongnam Gyeonggi KR 463811 in the IEEE OUI registry entry for F0:77:D0. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Xcellen

MAC address prefix F0:77:D0 is registered to Xcellen in the IEEE OUI registry. Any device whose MAC address begins with F0:77:D0 has a network interface built by Xcellen. 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 F0:77:D0:00:00:00 to F0:77:D0:FF:FF:FF.

OUI prefix: F0:77:D0
Hyphen form: F0-77-D0
MAC range: F0:77:D0:00:00:00 – F0:77:D0:FF:FF:FF
Addresses in block: 16,777,216
Organization: Xcellen
Address: 15F KINS Tower 25-1,Jeongja-dong,Bungdang-gu, Seongnam Gyeonggi KR 463811
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 "Xcellen"
archived source →
2026-07-17Assigned to "Xcellen"

Nearby in the registry

The prefixes assigned immediately before and after F0:77:D0:

FAQ

Which company owns MAC address prefix F0:77:D0?: MAC address prefix F0:77:D0 is registered to Xcellen in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with F0:77:D0 has a network interface built by Xcellen.
What is the OUI F0:77:D0?: F0:77:D0 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Xcellen. It covers every address from F0:77:D0:00:00:00 to F0:77:D0:FF:FF:FF, or 16,777,216 addresses in total. It is also written F0-77-D0.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in F0:77:D0:00:00:00 that is F0:77:D0 — 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 Xcellen located?: Xcellen is listed at 15F KINS Tower 25-1,Jeongja-dong,Bungdang-gu, Seongnam Gyeonggi KR 463811 in the IEEE OUI registry entry for F0:77:D0. This is the address the organization registered with the IEEE, which may differ from its current operating address.