Which company owns MAC address prefix E0:DF:B7?

MAC address prefix E0:DF:B7 is registered to Zeica Labs Pte Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with E0:DF:B7 has a network interface built by Zeica Labs Pte Ltd.

What is the OUI E0:DF:B7?

E0:DF:B7 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Zeica Labs Pte Ltd. It covers every address from E0:DF:B7:00:00:00 to E0:DF:B7:FF:FF:FF, or 16,777,216 addresses in total. It is also written E0-DF-B7.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in E0:DF:B7:00:00:00 that is E0:DF:B7 — 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 Zeica Labs Pte Ltd located?

Zeica Labs Pte Ltd is listed at 380 Jalan Besar, #06-06, ARC 380 Singapore SG 209000 in the IEEE OUI registry entry for E0:DF:B7. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Zeica Labs Pte Ltd

MAC address prefix E0:DF:B7 is registered to Zeica Labs Pte Ltd in the IEEE OUI registry. Any device whose MAC address begins with E0:DF:B7 has a network interface built by Zeica Labs 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 E0:DF:B7:00:00:00 to E0:DF:B7:FF:FF:FF.

OUI prefix: E0:DF:B7
Hyphen form: E0-DF-B7
MAC range: E0:DF:B7:00:00:00 – E0:DF:B7:FF:FF:FF
Addresses in block: 16,777,216
Organization: Zeica Labs Pte Ltd
Address: 380 Jalan Besar, #06-06, ARC 380 Singapore SG 209000
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.

2026-06-20Assigned to "Zeica Labs Pte Ltd"
archived source →
2026-07-17Assigned to "Zeica Labs Pte Ltd"

Nearby in the registry

The prefixes assigned immediately before and after E0:DF:B7:

FAQ

Which company owns MAC address prefix E0:DF:B7?: MAC address prefix E0:DF:B7 is registered to Zeica Labs Pte Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with E0:DF:B7 has a network interface built by Zeica Labs Pte Ltd.
What is the OUI E0:DF:B7?: E0:DF:B7 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Zeica Labs Pte Ltd. It covers every address from E0:DF:B7:00:00:00 to E0:DF:B7:FF:FF:FF, or 16,777,216 addresses in total. It is also written E0-DF-B7.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in E0:DF:B7:00:00:00 that is E0:DF:B7 — 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 Zeica Labs Pte Ltd located?: Zeica Labs Pte Ltd is listed at 380 Jalan Besar, #06-06, ARC 380 Singapore SG 209000 in the IEEE OUI registry entry for E0:DF:B7. This is the address the organization registered with the IEEE, which may differ from its current operating address.