Which company owns MAC address prefix 00:02:52?

MAC address prefix 00:02:52 is registered to Carrier Corporation in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 00:02:52 has a network interface built by Carrier Corporation.

What is the OUI 00:02:52?

00:02:52 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Carrier Corporation. It covers every address from 00:02:52:00:00:00 to 00:02:52:FF:FF:FF, or 16,777,216 addresses in total. It is also written 00-02-52.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 00:02:52:00:00:00 that is 00:02:52 — 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 Carrier Corporation located?

Carrier Corporation is listed at One Carrier Place Farmington CT US 06034-4015 in the IEEE OUI registry entry for 00:02:52. This is the address the organization registered with the IEEE, which may differ from its current operating address.

How many MAC prefixes does Carrier Corporation own?

Carrier Corporation holds 2 OUI prefixes in the IEEE registry, of which 00:02:52 is one. A device made by Carrier Corporation could carry a MAC address from any of them.

Carrier Corporation

MAC address prefix 00:02:52 is registered to Carrier Corporation in the IEEE OUI registry. Any device whose MAC address begins with 00:02:52 has a network interface built by Carrier 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 00:02:52:00:00:00 to 00:02:52:FF:FF:FF.

OUI prefix: 00:02:52
Hyphen form: 00-02-52
MAC range: 00:02:52:00:00:00 – 00:02:52:FF:FF:FF
Addresses in block: 16,777,216
Organization: Carrier Corporation
Address: One Carrier Place Farmington CT US 06034-4015
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.

Other prefixes from Carrier Corporation

Carrier Corporation holds 2 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:

34:6D:9C

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 "Carrier Corporation"
archived source →
2026-07-17Assigned to "Carrier Corporation"

Nearby in the registry

The prefixes assigned immediately before and after 00:02:52:

FAQ

Which company owns MAC address prefix 00:02:52?: MAC address prefix 00:02:52 is registered to Carrier Corporation in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 00:02:52 has a network interface built by Carrier Corporation.
What is the OUI 00:02:52?: 00:02:52 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Carrier Corporation. It covers every address from 00:02:52:00:00:00 to 00:02:52:FF:FF:FF, or 16,777,216 addresses in total. It is also written 00-02-52.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 00:02:52:00:00:00 that is 00:02:52 — 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 Carrier Corporation located?: Carrier Corporation is listed at One Carrier Place Farmington CT US 06034-4015 in the IEEE OUI registry entry for 00:02:52. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does Carrier Corporation own?: Carrier Corporation holds 2 OUI prefixes in the IEEE registry, of which 00:02:52 is one. A device made by Carrier Corporation could carry a MAC address from any of them.