Which company owns MAC address prefix 08:00:1A?

MAC address prefix 08:00:1A is registered to TIARA/ 10NET in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 08:00:1A has a network interface built by TIARA/ 10NET.

What is the OUI 08:00:1A?

08:00:1A is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to TIARA/ 10NET. It covers every address from 08:00:1A:00:00:00 to 08:00:1A:FF:FF:FF, or 16,777,216 addresses in total. It is also written 08-00-1A.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 08:00:1A:00:00:00 that is 08:00:1A — 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 TIARA/ 10NET located?

TIARA/ 10NET is listed at 7777 WASHINGTON VILLAGE DRIVE DAYTON OHIO US 45459-3957 in the IEEE OUI registry entry for 08:00:1A. This is the address the organization registered with the IEEE, which may differ from its current operating address.

TIARA/ 10NET

MAC address prefix 08:00:1A is registered to TIARA/ 10NET in the IEEE OUI registry. Any device whose MAC address begins with 08:00:1A has a network interface built by TIARA/ 10NET. 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 08:00:1A:00:00:00 to 08:00:1A:FF:FF:FF.

OUI prefix: 08:00:1A
Hyphen form: 08-00-1A
MAC range: 08:00:1A:00:00:00 – 08:00:1A:FF:FF:FF
Addresses in block: 16,777,216
Organization: TIARA/ 10NET
Address: 7777 WASHINGTON VILLAGE DRIVE DAYTON OHIO US 45459-3957
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 "TIARA/ 10NET"
archived source →
2026-07-17Assigned to "TIARA/ 10NET"

Nearby in the registry

The prefixes assigned immediately before and after 08:00:1A:

FAQ

Which company owns MAC address prefix 08:00:1A?: MAC address prefix 08:00:1A is registered to TIARA/ 10NET in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 08:00:1A has a network interface built by TIARA/ 10NET.
What is the OUI 08:00:1A?: 08:00:1A is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to TIARA/ 10NET. It covers every address from 08:00:1A:00:00:00 to 08:00:1A:FF:FF:FF, or 16,777,216 addresses in total. It is also written 08-00-1A.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 08:00:1A:00:00:00 that is 08:00:1A — 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 TIARA/ 10NET located?: TIARA/ 10NET is listed at 7777 WASHINGTON VILLAGE DRIVE DAYTON OHIO US 45459-3957 in the IEEE OUI registry entry for 08:00:1A. This is the address the organization registered with the IEEE, which may differ from its current operating address.