Which company owns MAC address prefix 10:66:6A?

MAC address prefix 10:66:6A is registered to Zabbly in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 10:66:6A has a network interface built by Zabbly.

What is the OUI 10:66:6A?

10:66:6A is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Zabbly. It covers every address from 10:66:6A:00:00:00 to 10:66:6A:FF:FF:FF, or 16,777,216 addresses in total. It is also written 10-66-6A.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 10:66:6A:00:00:00 that is 10:66:6A — 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 Zabbly located?

Zabbly is listed at 24 Saxby S Shefford QC CA J2M1S2 in the IEEE OUI registry entry for 10:66:6A. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Zabbly

MAC address prefix 10:66:6A is registered to Zabbly in the IEEE OUI registry. Any device whose MAC address begins with 10:66:6A has a network interface built by Zabbly. 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 10:66:6A:00:00:00 to 10:66:6A:FF:FF:FF.

OUI prefix: 10:66:6A
Hyphen form: 10-66-6A
MAC range: 10:66:6A:00:00:00 – 10:66:6A:FF:FF:FF
Addresses in block: 16,777,216
Organization: Zabbly
Address: 24 Saxby S Shefford QC CA J2M1S2
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.

2025-05-13Assigned to "Zabbly"
archived source →
2026-07-17Assigned to "Zabbly"

Nearby in the registry

The prefixes assigned immediately before and after 10:66:6A:

FAQ

Which company owns MAC address prefix 10:66:6A?: MAC address prefix 10:66:6A is registered to Zabbly in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 10:66:6A has a network interface built by Zabbly.
What is the OUI 10:66:6A?: 10:66:6A is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Zabbly. It covers every address from 10:66:6A:00:00:00 to 10:66:6A:FF:FF:FF, or 16,777,216 addresses in total. It is also written 10-66-6A.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 10:66:6A:00:00:00 that is 10:66:6A — 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 Zabbly located?: Zabbly is listed at 24 Saxby S Shefford QC CA J2M1S2 in the IEEE OUI registry entry for 10:66:6A. This is the address the organization registered with the IEEE, which may differ from its current operating address.