Which company owns MAC address prefix C0:BA:1F?

MAC address prefix C0:BA:1F is registered to Xiamen Milesight IoT Co., Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with C0:BA:1F has a network interface built by Xiamen Milesight IoT Co., Ltd..

What is the OUI C0:BA:1F?

C0:BA:1F is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Xiamen Milesight IoT Co., Ltd.. It covers every address from C0:BA:1F:00:00:00 to C0:BA:1F:FF:FF:FF, or 16,777,216 addresses in total. It is also written C0-BA-1F.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in C0:BA:1F:00:00:00 that is C0:BA:1F — 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.

How many MAC prefixes does Xiamen Milesight IoT Co., Ltd. own?

Xiamen Milesight IoT Co., Ltd. holds 3 OUI prefixes in the IEEE registry, of which C0:BA:1F is one. A device made by Xiamen Milesight IoT Co., Ltd. could carry a MAC address from any of them.

Xiamen Milesight IoT Co., Ltd.

MAC address prefix C0:BA:1F is registered to Xiamen Milesight IoT Co., Ltd. in the IEEE OUI registry. Any device whose MAC address begins with C0:BA:1F has a network interface built by Xiamen Milesight IoT Co., Ltd.. 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 C0:BA:1F:00:00:00 to C0:BA:1F:FF:FF:FF.

OUI prefix: C0:BA:1F
Hyphen form: C0-BA-1F
MAC range: C0:BA:1F:00:00:00 – C0:BA:1F:FF:FF:FF
Addresses in block: 16,777,216
Organization: Xiamen Milesight IoT Co., Ltd.
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 Xiamen Milesight IoT Co., Ltd.

Xiamen Milesight IoT Co., Ltd. holds 3 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:

Assignment history (3)

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

2025-05-13Assigned to "Private"
archived source →
2026-06-20Renamed from "Private" to "Xiamen Milesight IoT Co., Ltd."
archived source →
2026-07-17Assigned to "Xiamen Milesight IoT Co., Ltd."

Nearby in the registry

The prefixes assigned immediately before and after C0:BA:1F:

FAQ

Which company owns MAC address prefix C0:BA:1F?: MAC address prefix C0:BA:1F is registered to Xiamen Milesight IoT Co., Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with C0:BA:1F has a network interface built by Xiamen Milesight IoT Co., Ltd..
What is the OUI C0:BA:1F?: C0:BA:1F is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Xiamen Milesight IoT Co., Ltd.. It covers every address from C0:BA:1F:00:00:00 to C0:BA:1F:FF:FF:FF, or 16,777,216 addresses in total. It is also written C0-BA-1F.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in C0:BA:1F:00:00:00 that is C0:BA:1F — 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.
How many MAC prefixes does Xiamen Milesight IoT Co., Ltd. own?: Xiamen Milesight IoT Co., Ltd. holds 3 OUI prefixes in the IEEE registry, of which C0:BA:1F is one. A device made by Xiamen Milesight IoT Co., Ltd. could carry a MAC address from any of them.