Which company owns MAC address prefix 08:03:71?

MAC address prefix 08:03:71 is registered to KRG CORPORATE in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 08:03:71 has a network interface built by KRG CORPORATE.

What is the OUI 08:03:71?

08:03:71 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to KRG CORPORATE. It covers every address from 08:03:71:00:00:00 to 08:03:71:FF:FF:FF, or 16,777,216 addresses in total. It is also written 08-03-71.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 08:03:71:00:00:00 that is 08:03:71 — 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 KRG CORPORATE located?

KRG CORPORATE is listed at 41 rue Perier Montrouge FR 92120 in the IEEE OUI registry entry for 08:03:71. This is the address the organization registered with the IEEE, which may differ from its current operating address.

KRG CORPORATE

MAC address prefix 08:03:71 is registered to KRG CORPORATE in the IEEE OUI registry. Any device whose MAC address begins with 08:03:71 has a network interface built by KRG CORPORATE. 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 08:03:71:00:00:00 to 08:03:71:FF:FF:FF.

OUI prefix: 08:03:71
Hyphen form: 08-03-71
MAC range: 08:03:71:00:00:00 – 08:03:71:FF:FF:FF
Addresses in block: 16,777,216
Organization: KRG CORPORATE
Address: 41 rue Perier Montrouge FR 92120
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 "KRG CORPORATE"
archived source →
2026-07-17Assigned to "KRG CORPORATE"

Nearby in the registry

The prefixes assigned immediately before and after 08:03:71:

FAQ

Which company owns MAC address prefix 08:03:71?: MAC address prefix 08:03:71 is registered to KRG CORPORATE in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 08:03:71 has a network interface built by KRG CORPORATE.
What is the OUI 08:03:71?: 08:03:71 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to KRG CORPORATE. It covers every address from 08:03:71:00:00:00 to 08:03:71:FF:FF:FF, or 16,777,216 addresses in total. It is also written 08-03-71.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 08:03:71:00:00:00 that is 08:03:71 — 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 KRG CORPORATE located?: KRG CORPORATE is listed at 41 rue Perier Montrouge FR 92120 in the IEEE OUI registry entry for 08:03:71. This is the address the organization registered with the IEEE, which may differ from its current operating address.