Which company owns MAC address prefix D8:3A:F5?

MAC address prefix D8:3A:F5 is registered to Wideband Labs LLC in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with D8:3A:F5 has a network interface built by Wideband Labs LLC.

What is the OUI D8:3A:F5?

D8:3A:F5 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Wideband Labs LLC. It covers every address from D8:3A:F5:00:00:00 to D8:3A:F5:FF:FF:FF, or 16,777,216 addresses in total. It is also written D8-3A-F5.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in D8:3A:F5:00:00:00 that is D8:3A:F5 — 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 Wideband Labs LLC located?

Wideband Labs LLC is listed at 1027 S Main Street, STE 330 Joplin MO US 64801 in the IEEE OUI registry entry for D8:3A:F5. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Wideband Labs LLC

MAC address prefix D8:3A:F5 is registered to Wideband Labs LLC in the IEEE OUI registry. Any device whose MAC address begins with D8:3A:F5 has a network interface built by Wideband Labs LLC. 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 D8:3A:F5:00:00:00 to D8:3A:F5:FF:FF:FF.

OUI prefix: D8:3A:F5
Hyphen form: D8-3A-F5
MAC range: D8:3A:F5:00:00:00 – D8:3A:F5:FF:FF:FF
Addresses in block: 16,777,216
Organization: Wideband Labs LLC
Address: 1027 S Main Street, STE 330 Joplin MO US 64801
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.

2018-12-21Assigned to "Wideband Labs LLC"
archived source →
2026-07-17Assigned to "Wideband Labs LLC"

Nearby in the registry

The prefixes assigned immediately before and after D8:3A:F5:

FAQ

Which company owns MAC address prefix D8:3A:F5?: MAC address prefix D8:3A:F5 is registered to Wideband Labs LLC in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with D8:3A:F5 has a network interface built by Wideband Labs LLC.
What is the OUI D8:3A:F5?: D8:3A:F5 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Wideband Labs LLC. It covers every address from D8:3A:F5:00:00:00 to D8:3A:F5:FF:FF:FF, or 16,777,216 addresses in total. It is also written D8-3A-F5.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in D8:3A:F5:00:00:00 that is D8:3A:F5 — 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 Wideband Labs LLC located?: Wideband Labs LLC is listed at 1027 S Main Street, STE 330 Joplin MO US 64801 in the IEEE OUI registry entry for D8:3A:F5. This is the address the organization registered with the IEEE, which may differ from its current operating address.