Which company owns MAC address prefix 00:70:B0?

MAC address prefix 00:70:B0 is registered to M/A-COM INC. COMPANIES in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 00:70:B0 has a network interface built by M/A-COM INC. COMPANIES.

What is the OUI 00:70:B0?

00:70:B0 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to M/A-COM INC. COMPANIES. It covers every address from 00:70:B0:00:00:00 to 00:70:B0:FF:FF:FF, or 16,777,216 addresses in total. It is also written 00-70-B0.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 00:70:B0:00:00:00 that is 00:70:B0 — 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 M/A-COM INC. COMPANIES located?

M/A-COM INC. COMPANIES is listed at 11717 EXPLORATION LANE GERMANTOWN MD US 20767 in the IEEE OUI registry entry for 00:70:B0. This is the address the organization registered with the IEEE, which may differ from its current operating address.

How many MAC prefixes does M/A-COM INC. COMPANIES own?

M/A-COM INC. COMPANIES holds 2 OUI prefixes in the IEEE registry, of which 00:70:B0 is one. A device made by M/A-COM INC. COMPANIES could carry a MAC address from any of them.

M/A-COM INC. COMPANIES

MAC address prefix 00:70:B0 is registered to M/A-COM INC. COMPANIES in the IEEE OUI registry. Any device whose MAC address begins with 00:70:B0 has a network interface built by M/A-COM INC. COMPANIES. 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 00:70:B0:00:00:00 to 00:70:B0:FF:FF:FF.

OUI prefix: 00:70:B0
Hyphen form: 00-70-B0
MAC range: 00:70:B0:00:00:00 – 00:70:B0:FF:FF:FF
Addresses in block: 16,777,216
Organization: M/A-COM INC. COMPANIES
Address: 11717 EXPLORATION LANE GERMANTOWN MD US 20767
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 M/A-COM INC. COMPANIES

M/A-COM INC. COMPANIES holds 2 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:

02:70:B0

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 "M/A-COM INC. COMPANIES"
archived source →
2026-07-17Assigned to "M/A-COM INC. COMPANIES"

Nearby in the registry

The prefixes assigned immediately before and after 00:70:B0:

FAQ

Which company owns MAC address prefix 00:70:B0?: MAC address prefix 00:70:B0 is registered to M/A-COM INC. COMPANIES in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 00:70:B0 has a network interface built by M/A-COM INC. COMPANIES.
What is the OUI 00:70:B0?: 00:70:B0 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to M/A-COM INC. COMPANIES. It covers every address from 00:70:B0:00:00:00 to 00:70:B0:FF:FF:FF, or 16,777,216 addresses in total. It is also written 00-70-B0.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 00:70:B0:00:00:00 that is 00:70:B0 — 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 M/A-COM INC. COMPANIES located?: M/A-COM INC. COMPANIES is listed at 11717 EXPLORATION LANE GERMANTOWN MD US 20767 in the IEEE OUI registry entry for 00:70:B0. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does M/A-COM INC. COMPANIES own?: M/A-COM INC. COMPANIES holds 2 OUI prefixes in the IEEE registry, of which 00:70:B0 is one. A device made by M/A-COM INC. COMPANIES could carry a MAC address from any of them.