Which company owns MAC address prefix EC:36:3F?

MAC address prefix EC:36:3F is registered to Markov Corporation in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with EC:36:3F has a network interface built by Markov Corporation.

What is the OUI EC:36:3F?

EC:36:3F is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Markov Corporation. It covers every address from EC:36:3F:00:00:00 to EC:36:3F:FF:FF:FF, or 16,777,216 addresses in total. It is also written EC-36-3F.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in EC:36:3F:00:00:00 that is EC:36:3F — 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 Markov Corporation located?

Markov Corporation is listed at 650 Vaqueros Avenue, Suite A Sunnyvale CA US 94085 in the IEEE OUI registry entry for EC:36:3F. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Markov Corporation

MAC address prefix EC:36:3F is registered to Markov Corporation in the IEEE OUI registry. Any device whose MAC address begins with EC:36:3F has a network interface built by Markov Corporation. 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:36:3F:00:00:00 to EC:36:3F:FF:FF:FF.

OUI prefix: EC:36:3F
Hyphen form: EC-36-3F
MAC range: EC:36:3F:00:00:00 – EC:36:3F:FF:FF:FF
Addresses in block: 16,777,216
Organization: Markov Corporation
Address: 650 Vaqueros Avenue, Suite A Sunnyvale CA US 94085
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.

2017-09-08Assigned to "Markov Corporation"
archived source →
2026-07-17Assigned to "Markov Corporation"

Nearby in the registry

The prefixes assigned immediately before and after EC:36:3F:

FAQ

Which company owns MAC address prefix EC:36:3F?: MAC address prefix EC:36:3F is registered to Markov Corporation in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with EC:36:3F has a network interface built by Markov Corporation.
What is the OUI EC:36:3F?: EC:36:3F is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Markov Corporation. It covers every address from EC:36:3F:00:00:00 to EC:36:3F:FF:FF:FF, or 16,777,216 addresses in total. It is also written EC-36-3F.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in EC:36:3F:00:00:00 that is EC:36:3F — 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 Markov Corporation located?: Markov Corporation is listed at 650 Vaqueros Avenue, Suite A Sunnyvale CA US 94085 in the IEEE OUI registry entry for EC:36:3F. This is the address the organization registered with the IEEE, which may differ from its current operating address.