Which company owns MAC address prefix 38:EF:E3?

MAC address prefix 38:EF:E3 is registered to INGENICO TERMINALS SAS in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 38:EF:E3 has a network interface built by INGENICO TERMINALS SAS.

What is the OUI 38:EF:E3?

38:EF:E3 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to INGENICO TERMINALS SAS. It covers every address from 38:EF:E3:00:00:00 to 38:EF:E3:FF:FF:FF, or 16,777,216 addresses in total. It is also written 38-EF-E3.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 38:EF:E3:00:00:00 that is 38:EF:E3 — 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 INGENICO TERMINALS SAS located?

INGENICO TERMINALS SAS is listed at 13-17 Rue Pagès Suresnes FR 92150 in the IEEE OUI registry entry for 38:EF:E3. This is the address the organization registered with the IEEE, which may differ from its current operating address.

How many MAC prefixes does INGENICO TERMINALS SAS own?

INGENICO TERMINALS SAS holds 4 OUI prefixes in the IEEE registry, of which 38:EF:E3 is one. A device made by INGENICO TERMINALS SAS could carry a MAC address from any of them.

INGENICO TERMINALS SAS

MAC address prefix 38:EF:E3 is registered to INGENICO TERMINALS SAS in the IEEE OUI registry. Any device whose MAC address begins with 38:EF:E3 has a network interface built by INGENICO TERMINALS SAS. 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 38:EF:E3:00:00:00 to 38:EF:E3:FF:FF:FF.

OUI prefix: 38:EF:E3
Hyphen form: 38-EF-E3
MAC range: 38:EF:E3:00:00:00 – 38:EF:E3:FF:FF:FF
Addresses in block: 16,777,216
Organization: INGENICO TERMINALS SAS
Address: 13-17 Rue Pagès Suresnes FR 92150
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 INGENICO TERMINALS SAS

INGENICO TERMINALS SAS 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.

2019-07-04Assigned to "INGENICO TERMINALS SAS"
archived source →
2026-07-17Assigned to "INGENICO TERMINALS SAS"

Nearby in the registry

The prefixes assigned immediately before and after 38:EF:E3:

FAQ

Which company owns MAC address prefix 38:EF:E3?: MAC address prefix 38:EF:E3 is registered to INGENICO TERMINALS SAS in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 38:EF:E3 has a network interface built by INGENICO TERMINALS SAS.
What is the OUI 38:EF:E3?: 38:EF:E3 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to INGENICO TERMINALS SAS. It covers every address from 38:EF:E3:00:00:00 to 38:EF:E3:FF:FF:FF, or 16,777,216 addresses in total. It is also written 38-EF-E3.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 38:EF:E3:00:00:00 that is 38:EF:E3 — 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 INGENICO TERMINALS SAS located?: INGENICO TERMINALS SAS is listed at 13-17 Rue Pagès Suresnes FR 92150 in the IEEE OUI registry entry for 38:EF:E3. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does INGENICO TERMINALS SAS own?: INGENICO TERMINALS SAS holds 4 OUI prefixes in the IEEE registry, of which 38:EF:E3 is one. A device made by INGENICO TERMINALS SAS could carry a MAC address from any of them.