Which company owns MAC address prefix 84:82:1B?

MAC address prefix 84:82:1B is registered to PROX SG Pte Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 84:82:1B has a network interface built by PROX SG Pte Ltd.

What is the OUI 84:82:1B?

84:82:1B is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to PROX SG Pte Ltd. It covers every address from 84:82:1B:00:00:00 to 84:82:1B:FF:FF:FF, or 16,777,216 addresses in total. It is also written 84-82-1B.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 84:82:1B:00:00:00 that is 84:82:1B — 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 PROX SG Pte Ltd located?

PROX SG Pte Ltd is listed at 39 Woodlands Close, #03-32 Mega@Woodlands Singapore SG 737856 in the IEEE OUI registry entry for 84:82:1B. This is the address the organization registered with the IEEE, which may differ from its current operating address.

PROX SG Pte Ltd

MAC address prefix 84:82:1B is registered to PROX SG Pte Ltd in the IEEE OUI registry. Any device whose MAC address begins with 84:82:1B has a network interface built by PROX SG Pte 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 84:82:1B:00:00:00 to 84:82:1B:FF:FF:FF.

OUI prefix: 84:82:1B
Hyphen form: 84-82-1B
MAC range: 84:82:1B:00:00:00 – 84:82:1B:FF:FF:FF
Addresses in block: 16,777,216
Organization: PROX SG Pte Ltd
Address: 39 Woodlands Close, #03-32 Mega@Woodlands Singapore SG 737856
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.

2024-02-15Assigned to "PROX SG Pte Ltd"
archived source →
2026-07-17Assigned to "PROX SG Pte Ltd"

Nearby in the registry

The prefixes assigned immediately before and after 84:82:1B:

FAQ

Which company owns MAC address prefix 84:82:1B?: MAC address prefix 84:82:1B is registered to PROX SG Pte Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 84:82:1B has a network interface built by PROX SG Pte Ltd.
What is the OUI 84:82:1B?: 84:82:1B is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to PROX SG Pte Ltd. It covers every address from 84:82:1B:00:00:00 to 84:82:1B:FF:FF:FF, or 16,777,216 addresses in total. It is also written 84-82-1B.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 84:82:1B:00:00:00 that is 84:82:1B — 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 PROX SG Pte Ltd located?: PROX SG Pte Ltd is listed at 39 Woodlands Close, #03-32 Mega@Woodlands Singapore SG 737856 in the IEEE OUI registry entry for 84:82:1B. This is the address the organization registered with the IEEE, which may differ from its current operating address.