Which company owns MAC address prefix 64:C7:F1?

MAC address prefix 64:C7:F1 is registered to Premier-D LLC in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 64:C7:F1 has a network interface built by Premier-D LLC.

What is the OUI 64:C7:F1?

64:C7:F1 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Premier-D LLC. It covers every address from 64:C7:F1:00:00:00 to 64:C7:F1:FF:FF:FF, or 16,777,216 addresses in total. It is also written 64-C7-F1.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 64:C7:F1:00:00:00 that is 64:C7:F1 — 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 Premier-D LLC located?

Premier-D LLC is listed at SHABOLOVKA STREET, 19, ROOM. 1/1 Moscow RU 119049 in the IEEE OUI registry entry for 64:C7:F1. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Premier-D LLC

MAC address prefix 64:C7:F1 is registered to Premier-D LLC in the IEEE OUI registry. Any device whose MAC address begins with 64:C7:F1 has a network interface built by Premier-D LLC. 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 64:C7:F1:00:00:00 to 64:C7:F1:FF:FF:FF.

OUI prefix: 64:C7:F1
Hyphen form: 64-C7-F1
MAC range: 64:C7:F1:00:00:00 – 64:C7:F1:FF:FF:FF
Addresses in block: 16,777,216
Organization: Premier-D LLC
Address: SHABOLOVKA STREET, 19, ROOM. 1/1 Moscow RU 119049
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 (1)

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

2026-07-30Assigned to "Premier-D LLC"

Nearby in the registry

The prefixes assigned immediately before and after 64:C7:F1:

FAQ

Which company owns MAC address prefix 64:C7:F1?: MAC address prefix 64:C7:F1 is registered to Premier-D LLC in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 64:C7:F1 has a network interface built by Premier-D LLC.
What is the OUI 64:C7:F1?: 64:C7:F1 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Premier-D LLC. It covers every address from 64:C7:F1:00:00:00 to 64:C7:F1:FF:FF:FF, or 16,777,216 addresses in total. It is also written 64-C7-F1.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 64:C7:F1:00:00:00 that is 64:C7:F1 — 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 Premier-D LLC located?: Premier-D LLC is listed at SHABOLOVKA STREET, 19, ROOM. 1/1 Moscow RU 119049 in the IEEE OUI registry entry for 64:C7:F1. This is the address the organization registered with the IEEE, which may differ from its current operating address.