Which company owns MAC address prefix DC:09:14?

MAC address prefix DC:09:14 is registered to Talk-A-Phone Co. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with DC:09:14 has a network interface built by Talk-A-Phone Co..

What is the OUI DC:09:14?

DC:09:14 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Talk-A-Phone Co.. It covers every address from DC:09:14:00:00:00 to DC:09:14:FF:FF:FF, or 16,777,216 addresses in total. It is also written DC-09-14.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in DC:09:14:00:00:00 that is DC:09:14 — 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 Talk-A-Phone Co. located?

Talk-A-Phone Co. is listed at 7530 N. Natchez Ave. Niles IL US 60714 in the IEEE OUI registry entry for DC:09:14. This is the address the organization registered with the IEEE, which may differ from its current operating address.

How many MAC prefixes does Talk-A-Phone Co. own?

Talk-A-Phone Co. holds 2 OUI prefixes in the IEEE registry, of which DC:09:14 is one. A device made by Talk-A-Phone Co. could carry a MAC address from any of them.

Talk-A-Phone Co.

MAC address prefix DC:09:14 is registered to Talk-A-Phone Co. in the IEEE OUI registry. Any device whose MAC address begins with DC:09:14 has a network interface built by Talk-A-Phone Co.. 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:09:14:00:00:00 to DC:09:14:FF:FF:FF.

OUI prefix: DC:09:14
Hyphen form: DC-09-14
MAC range: DC:09:14:00:00:00 – DC:09:14:FF:FF:FF
Addresses in block: 16,777,216
Organization: Talk-A-Phone Co.
Address: 7530 N. Natchez Ave. Niles IL US 60714
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 Talk-A-Phone Co.

Talk-A-Phone Co. holds 2 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:

00:1E:EB

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 "Talk-A-Phone Co."
archived source →
2026-07-17Assigned to "Talk-A-Phone Co."

Nearby in the registry

The prefixes assigned immediately before and after DC:09:14:

FAQ

Which company owns MAC address prefix DC:09:14?: MAC address prefix DC:09:14 is registered to Talk-A-Phone Co. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with DC:09:14 has a network interface built by Talk-A-Phone Co..
What is the OUI DC:09:14?: DC:09:14 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Talk-A-Phone Co.. It covers every address from DC:09:14:00:00:00 to DC:09:14:FF:FF:FF, or 16,777,216 addresses in total. It is also written DC-09-14.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in DC:09:14:00:00:00 that is DC:09:14 — 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 Talk-A-Phone Co. located?: Talk-A-Phone Co. is listed at 7530 N. Natchez Ave. Niles IL US 60714 in the IEEE OUI registry entry for DC:09:14. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does Talk-A-Phone Co. own?: Talk-A-Phone Co. holds 2 OUI prefixes in the IEEE registry, of which DC:09:14 is one. A device made by Talk-A-Phone Co. could carry a MAC address from any of them.