Which company owns MAC address prefix 88:A3:CC?

MAC address prefix 88:A3:CC is registered to Amatis Controls in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 88:A3:CC has a network interface built by Amatis Controls.

What is the OUI 88:A3:CC?

88:A3:CC is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Amatis Controls. It covers every address from 88:A3:CC:00:00:00 to 88:A3:CC:FF:FF:FF, or 16,777,216 addresses in total. It is also written 88-A3-CC.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 88:A3:CC:00:00:00 that is 88:A3:CC — 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 Amatis Controls located?

Amatis Controls is listed at 210 Aspen Airport Business Center, Suite A Aspen CO US 81611 in the IEEE OUI registry entry for 88:A3:CC. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Amatis Controls

MAC address prefix 88:A3:CC is registered to Amatis Controls in the IEEE OUI registry. Any device whose MAC address begins with 88:A3:CC has a network interface built by Amatis Controls. 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 88:A3:CC:00:00:00 to 88:A3:CC:FF:FF:FF.

OUI prefix: 88:A3:CC
Hyphen form: 88-A3-CC
MAC range: 88:A3:CC:00:00:00 – 88:A3:CC:FF:FF:FF
Addresses in block: 16,777,216
Organization: Amatis Controls
Address: 210 Aspen Airport Business Center, Suite A Aspen CO US 81611
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.

2016-07-29Assigned to "Amatis Controls"
archived source →
2026-07-17Assigned to "Amatis Controls"

Nearby in the registry

The prefixes assigned immediately before and after 88:A3:CC:

FAQ

Which company owns MAC address prefix 88:A3:CC?: MAC address prefix 88:A3:CC is registered to Amatis Controls in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 88:A3:CC has a network interface built by Amatis Controls.
What is the OUI 88:A3:CC?: 88:A3:CC is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Amatis Controls. It covers every address from 88:A3:CC:00:00:00 to 88:A3:CC:FF:FF:FF, or 16,777,216 addresses in total. It is also written 88-A3-CC.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 88:A3:CC:00:00:00 that is 88:A3:CC — 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 Amatis Controls located?: Amatis Controls is listed at 210 Aspen Airport Business Center, Suite A Aspen CO US 81611 in the IEEE OUI registry entry for 88:A3:CC. This is the address the organization registered with the IEEE, which may differ from its current operating address.