Which company owns MAC address prefix 10:B7:A8?

MAC address prefix 10:B7:A8 is registered to CableFree Networks Limited in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 10:B7:A8 has a network interface built by CableFree Networks Limited.

What is the OUI 10:B7:A8?

10:B7:A8 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to CableFree Networks Limited. It covers every address from 10:B7:A8:00:00:00 to 10:B7:A8:FF:FF:FF, or 16,777,216 addresses in total. It is also written 10-B7-A8.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 10:B7:A8:00:00:00 that is 10:B7:A8 — 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 CableFree Networks Limited located?

CableFree Networks Limited is listed at G6, Magdalen Centre, The Oxford Science Park, Robert Robinson Avenue Oxford --- GB OX4 4GA in the IEEE OUI registry entry for 10:B7:A8. This is the address the organization registered with the IEEE, which may differ from its current operating address.

CableFree Networks Limited

MAC address prefix 10:B7:A8 is registered to CableFree Networks Limited in the IEEE OUI registry. Any device whose MAC address begins with 10:B7:A8 has a network interface built by CableFree Networks Limited. 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 10:B7:A8:00:00:00 to 10:B7:A8:FF:FF:FF.

OUI prefix: 10:B7:A8
Hyphen form: 10-B7-A8
MAC range: 10:B7:A8:00:00:00 – 10:B7:A8:FF:FF:FF
Addresses in block: 16,777,216
Organization: CableFree Networks Limited
Address: G6, Magdalen Centre, The Oxford Science Park, Robert Robinson Avenue Oxford --- GB OX4 4GA
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.

2026-07-17Assigned to "CableFree Networks Limited"

Nearby in the registry

The prefixes assigned immediately before and after 10:B7:A8:

FAQ

Which company owns MAC address prefix 10:B7:A8?: MAC address prefix 10:B7:A8 is registered to CableFree Networks Limited in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 10:B7:A8 has a network interface built by CableFree Networks Limited.
What is the OUI 10:B7:A8?: 10:B7:A8 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to CableFree Networks Limited. It covers every address from 10:B7:A8:00:00:00 to 10:B7:A8:FF:FF:FF, or 16,777,216 addresses in total. It is also written 10-B7-A8.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 10:B7:A8:00:00:00 that is 10:B7:A8 — 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 CableFree Networks Limited located?: CableFree Networks Limited is listed at G6, Magdalen Centre, The Oxford Science Park, Robert Robinson Avenue Oxford --- GB OX4 4GA in the IEEE OUI registry entry for 10:B7:A8. This is the address the organization registered with the IEEE, which may differ from its current operating address.