Which company owns MAC address prefix EC:AF:97?

MAC address prefix EC:AF:97 is registered to GIT in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with EC:AF:97 has a network interface built by GIT.

What is the OUI EC:AF:97?

EC:AF:97 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to GIT. It covers every address from EC:AF:97:00:00:00 to EC:AF:97:FF:FF:FF, or 16,777,216 addresses in total. It is also written EC-AF-97.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in EC:AF:97:00:00:00 that is EC:AF:97 — 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 GIT located?

GIT is listed at 05655, GIT Bldg., 87, Macheon-ro, Songpa-gu, Seoul, Korea Songpa-gu Seoul KR 05655 in the IEEE OUI registry entry for EC:AF:97. This is the address the organization registered with the IEEE, which may differ from its current operating address.

GIT

MAC address prefix EC:AF:97 is registered to GIT in the IEEE OUI registry. Any device whose MAC address begins with EC:AF:97 has a network interface built by GIT. 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 EC:AF:97:00:00:00 to EC:AF:97:FF:FF:FF.

OUI prefix: EC:AF:97
Hyphen form: EC-AF-97
MAC range: EC:AF:97:00:00:00 – EC:AF:97:FF:FF:FF
Addresses in block: 16,777,216
Organization: GIT
Address: 05655, GIT Bldg., 87, Macheon-ro, Songpa-gu, Seoul, Korea Songpa-gu Seoul KR 05655
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 "GIT"
archived source →
2026-07-17Assigned to "GIT"

Nearby in the registry

The prefixes assigned immediately before and after EC:AF:97:

FAQ

Which company owns MAC address prefix EC:AF:97?: MAC address prefix EC:AF:97 is registered to GIT in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with EC:AF:97 has a network interface built by GIT.
What is the OUI EC:AF:97?: EC:AF:97 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to GIT. It covers every address from EC:AF:97:00:00:00 to EC:AF:97:FF:FF:FF, or 16,777,216 addresses in total. It is also written EC-AF-97.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in EC:AF:97:00:00:00 that is EC:AF:97 — 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 GIT located?: GIT is listed at 05655, GIT Bldg., 87, Macheon-ro, Songpa-gu, Seoul, Korea Songpa-gu Seoul KR 05655 in the IEEE OUI registry entry for EC:AF:97. This is the address the organization registered with the IEEE, which may differ from its current operating address.