Which company owns MAC address prefix 90:F5:10?

MAC address prefix 90:F5:10 is registered to Technologie Optic.ca Inc. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 90:F5:10 has a network interface built by Technologie Optic.ca Inc..

What is the OUI 90:F5:10?

90:F5:10 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Technologie Optic.ca Inc.. It covers every address from 90:F5:10:00:00:00 to 90:F5:10:FF:FF:FF, or 16,777,216 addresses in total. It is also written 90-F5-10.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 90:F5:10:00:00:00 that is 90:F5:10 — 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 Technologie Optic.ca Inc. located?

Technologie Optic.ca Inc. is listed at 1-2871 Star Saint-Hubert Quebec CA J3Y3W5 in the IEEE OUI registry entry for 90:F5:10. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Technologie Optic.ca Inc.

MAC address prefix 90:F5:10 is registered to Technologie Optic.ca Inc. in the IEEE OUI registry. Any device whose MAC address begins with 90:F5:10 has a network interface built by Technologie Optic.ca Inc.. 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 90:F5:10:00:00:00 to 90:F5:10:FF:FF:FF.

OUI prefix: 90:F5:10
Hyphen form: 90-F5-10
MAC range: 90:F5:10:00:00:00 – 90:F5:10:FF:FF:FF
Addresses in block: 16,777,216
Organization: Technologie Optic.ca Inc.
Address: 1-2871 Star Saint-Hubert Quebec CA J3Y3W5
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 (1)

The IEEE registry publishes current state only — this is the change record we've kept since we started tracking it daily.

2026-07-22Assigned to "Technologie Optic.ca Inc."

Nearby in the registry

The prefixes assigned immediately before and after 90:F5:10:

FAQ

Which company owns MAC address prefix 90:F5:10?: MAC address prefix 90:F5:10 is registered to Technologie Optic.ca Inc. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 90:F5:10 has a network interface built by Technologie Optic.ca Inc..
What is the OUI 90:F5:10?: 90:F5:10 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Technologie Optic.ca Inc.. It covers every address from 90:F5:10:00:00:00 to 90:F5:10:FF:FF:FF, or 16,777,216 addresses in total. It is also written 90-F5-10.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 90:F5:10:00:00:00 that is 90:F5:10 — 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 Technologie Optic.ca Inc. located?: Technologie Optic.ca Inc. is listed at 1-2871 Star Saint-Hubert Quebec CA J3Y3W5 in the IEEE OUI registry entry for 90:F5:10. This is the address the organization registered with the IEEE, which may differ from its current operating address.