Which company owns MAC address prefix 70:EE:50?

MAC address prefix 70:EE:50 is registered to Netatmo in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 70:EE:50 has a network interface built by Netatmo.

What is the OUI 70:EE:50?

70:EE:50 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Netatmo. It covers every address from 70:EE:50:00:00:00 to 70:EE:50:FF:FF:FF, or 16,777,216 addresses in total. It is also written 70-EE-50.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 70:EE:50:00:00:00 that is 70:EE:50 — 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 Netatmo located?

Netatmo is listed at 17 route de la reine Boulogne-Billancourt FR 92100 in the IEEE OUI registry entry for 70:EE:50. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Netatmo

MAC address prefix 70:EE:50 is registered to Netatmo in the IEEE OUI registry. Any device whose MAC address begins with 70:EE:50 has a network interface built by Netatmo. 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 70:EE:50:00:00:00 to 70:EE:50:FF:FF:FF.

OUI prefix: 70:EE:50
Hyphen form: 70-EE-50
MAC range: 70:EE:50:00:00:00 – 70:EE:50:FF:FF:FF
Addresses in block: 16,777,216
Organization: Netatmo
Address: 17 route de la reine Boulogne-Billancourt FR 92100
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 "Netatmo"
archived source →
2026-07-17Assigned to "Netatmo"

Nearby in the registry

The prefixes assigned immediately before and after 70:EE:50:

FAQ

Which company owns MAC address prefix 70:EE:50?: MAC address prefix 70:EE:50 is registered to Netatmo in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 70:EE:50 has a network interface built by Netatmo.
What is the OUI 70:EE:50?: 70:EE:50 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Netatmo. It covers every address from 70:EE:50:00:00:00 to 70:EE:50:FF:FF:FF, or 16,777,216 addresses in total. It is also written 70-EE-50.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 70:EE:50:00:00:00 that is 70:EE:50 — 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 Netatmo located?: Netatmo is listed at 17 route de la reine Boulogne-Billancourt FR 92100 in the IEEE OUI registry entry for 70:EE:50. This is the address the organization registered with the IEEE, which may differ from its current operating address.