Which company owns MAC address prefix DC:A9:89?

MAC address prefix DC:A9:89 is registered to MACANDC in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with DC:A9:89 has a network interface built by MACANDC.

What is the OUI DC:A9:89?

DC:A9:89 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to MACANDC. It covers every address from DC:A9:89:00:00:00 to DC:A9:89:FF:FF:FF, or 16,777,216 addresses in total. It is also written DC-A9-89.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in DC:A9:89:00:00:00 that is DC:A9:89 — 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 MACANDC located?

MACANDC is listed at 2-nd Filevskaya str.7/6 Moscow RU 121096 in the IEEE OUI registry entry for DC:A9:89. This is the address the organization registered with the IEEE, which may differ from its current operating address.

MACANDC

MAC address prefix DC:A9:89 is registered to MACANDC in the IEEE OUI registry. Any device whose MAC address begins with DC:A9:89 has a network interface built by MACANDC. 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 DC:A9:89:00:00:00 to DC:A9:89:FF:FF:FF.

OUI prefix: DC:A9:89
Hyphen form: DC-A9-89
MAC range: DC:A9:89:00:00:00 – DC:A9:89:FF:FF:FF
Addresses in block: 16,777,216
Organization: MACANDC
Address: 2-nd Filevskaya str.7/6 Moscow RU 121096
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 "MACANDC"
archived source →
2026-07-17Assigned to "MACANDC"

Nearby in the registry

The prefixes assigned immediately before and after DC:A9:89:

FAQ

Which company owns MAC address prefix DC:A9:89?: MAC address prefix DC:A9:89 is registered to MACANDC in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with DC:A9:89 has a network interface built by MACANDC.
What is the OUI DC:A9:89?: DC:A9:89 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to MACANDC. It covers every address from DC:A9:89:00:00:00 to DC:A9:89:FF:FF:FF, or 16,777,216 addresses in total. It is also written DC-A9-89.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in DC:A9:89:00:00:00 that is DC:A9:89 — 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 MACANDC located?: MACANDC is listed at 2-nd Filevskaya str.7/6 Moscow RU 121096 in the IEEE OUI registry entry for DC:A9:89. This is the address the organization registered with the IEEE, which may differ from its current operating address.