Which company owns MAC address prefix 10:66:50?

MAC address prefix 10:66:50 is registered to Robert Bosch JuP1 in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 10:66:50 has a network interface built by Robert Bosch JuP1.

What is the OUI 10:66:50?

10:66:50 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Robert Bosch JuP1. It covers every address from 10:66:50:00:00:00 to 10:66:50:FF:FF:FF, or 16,777,216 addresses in total. It is also written 10-66-50.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 10:66:50:00:00:00 that is 10:66:50 — 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 Robert Bosch JuP1 located?

Robert Bosch JuP1 is listed at Robert Bosch 1150 Juarez Chihuahua MX 32557 in the IEEE OUI registry entry for 10:66:50. This is the address the organization registered with the IEEE, which may differ from its current operating address.

How many MAC prefixes does Robert Bosch JuP1 own?

Robert Bosch JuP1 holds 2 OUI prefixes in the IEEE registry, of which 10:66:50 is one. A device made by Robert Bosch JuP1 could carry a MAC address from any of them.

Robert Bosch JuP1

MAC address prefix 10:66:50 is registered to Robert Bosch JuP1 in the IEEE OUI registry. Any device whose MAC address begins with 10:66:50 has a network interface built by Robert Bosch JuP1. 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 10:66:50:00:00:00 to 10:66:50:FF:FF:FF.

OUI prefix: 10:66:50
Hyphen form: 10-66-50
MAC range: 10:66:50:00:00:00 – 10:66:50:FF:FF:FF
Addresses in block: 16,777,216
Organization: Robert Bosch JuP1
Address: Robert Bosch 1150 Juarez Chihuahua MX 32557
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 Robert Bosch JuP1

Robert Bosch JuP1 holds 2 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:

70:F7:4F

Assignment history (1)

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

2026-07-17Assigned to "Robert Bosch JuP1"

Nearby in the registry

The prefixes assigned immediately before and after 10:66:50:

FAQ

Which company owns MAC address prefix 10:66:50?: MAC address prefix 10:66:50 is registered to Robert Bosch JuP1 in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 10:66:50 has a network interface built by Robert Bosch JuP1.
What is the OUI 10:66:50?: 10:66:50 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Robert Bosch JuP1. It covers every address from 10:66:50:00:00:00 to 10:66:50:FF:FF:FF, or 16,777,216 addresses in total. It is also written 10-66-50.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 10:66:50:00:00:00 that is 10:66:50 — 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 Robert Bosch JuP1 located?: Robert Bosch JuP1 is listed at Robert Bosch 1150 Juarez Chihuahua MX 32557 in the IEEE OUI registry entry for 10:66:50. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does Robert Bosch JuP1 own?: Robert Bosch JuP1 holds 2 OUI prefixes in the IEEE registry, of which 10:66:50 is one. A device made by Robert Bosch JuP1 could carry a MAC address from any of them.