Which company owns MAC address prefix 20:1F:31?

MAC address prefix 20:1F:31 is registered to Inteno Broadband Technology AB in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 20:1F:31 has a network interface built by Inteno Broadband Technology AB.

What is the OUI 20:1F:31?

20:1F:31 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Inteno Broadband Technology AB. It covers every address from 20:1F:31:00:00:00 to 20:1F:31:FF:FF:FF, or 16,777,216 addresses in total. It is also written 20-1F-31.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 20:1F:31:00:00:00 that is 20:1F:31 — 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 Inteno Broadband Technology AB located?

Inteno Broadband Technology AB is listed at Stensätravägen 13 Skärholmen SE SE 127 39 in the IEEE OUI registry entry for 20:1F:31. This is the address the organization registered with the IEEE, which may differ from its current operating address.

How many MAC prefixes does Inteno Broadband Technology AB own?

Inteno Broadband Technology AB holds 4 OUI prefixes in the IEEE registry, of which 20:1F:31 is one. A device made by Inteno Broadband Technology AB could carry a MAC address from any of them.

Inteno Broadband Technology AB

MAC address prefix 20:1F:31 is registered to Inteno Broadband Technology AB in the IEEE OUI registry. Any device whose MAC address begins with 20:1F:31 has a network interface built by Inteno Broadband Technology AB. 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 20:1F:31:00:00:00 to 20:1F:31:FF:FF:FF.

OUI prefix: 20:1F:31
Hyphen form: 20-1F-31
MAC range: 20:1F:31:00:00:00 – 20:1F:31:FF:FF:FF
Addresses in block: 16,777,216
Organization: Inteno Broadband Technology AB
Address: Stensätravägen 13 Skärholmen SE SE 127 39
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 Inteno Broadband Technology AB

Inteno Broadband Technology AB holds 4 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:

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 "Inteno Broadband Technology AB"
archived source →
2026-07-17Assigned to "Inteno Broadband Technology AB"

Nearby in the registry

The prefixes assigned immediately before and after 20:1F:31:

FAQ

Which company owns MAC address prefix 20:1F:31?: MAC address prefix 20:1F:31 is registered to Inteno Broadband Technology AB in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 20:1F:31 has a network interface built by Inteno Broadband Technology AB.
What is the OUI 20:1F:31?: 20:1F:31 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Inteno Broadband Technology AB. It covers every address from 20:1F:31:00:00:00 to 20:1F:31:FF:FF:FF, or 16,777,216 addresses in total. It is also written 20-1F-31.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 20:1F:31:00:00:00 that is 20:1F:31 — 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 Inteno Broadband Technology AB located?: Inteno Broadband Technology AB is listed at Stensätravägen 13 Skärholmen SE SE 127 39 in the IEEE OUI registry entry for 20:1F:31. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does Inteno Broadband Technology AB own?: Inteno Broadband Technology AB holds 4 OUI prefixes in the IEEE registry, of which 20:1F:31 is one. A device made by Inteno Broadband Technology AB could carry a MAC address from any of them.