Which company owns MAC address prefix 40:D5:63?

MAC address prefix 40:D5:63 is registered to HANA Electronics in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 40:D5:63 has a network interface built by HANA Electronics.

What is the OUI 40:D5:63?

40:D5:63 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to HANA Electronics. It covers every address from 40:D5:63:00:00:00 to 40:D5:63:FF:FF:FF, or 16,777,216 addresses in total. It is also written 40-D5-63.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 40:D5:63:00:00:00 that is 40:D5:63 — 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 HANA Electronics located?

HANA Electronics is listed at Av. Abiurana, 450 Manaus Amazonas BR 69075-010 in the IEEE OUI registry entry for 40:D5:63. This is the address the organization registered with the IEEE, which may differ from its current operating address.

HANA Electronics

MAC address prefix 40:D5:63 is registered to HANA Electronics in the IEEE OUI registry. Any device whose MAC address begins with 40:D5:63 has a network interface built by HANA Electronics. 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 40:D5:63:00:00:00 to 40:D5:63:FF:FF:FF.

OUI prefix: 40:D5:63
Hyphen form: 40-D5-63
MAC range: 40:D5:63:00:00:00 – 40:D5:63:FF:FF:FF
Addresses in block: 16,777,216
Organization: HANA Electronics
Address: Av. Abiurana, 450 Manaus Amazonas BR 69075-010
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.

2023-07-11Assigned to "HANA Electronics"
archived source →
2026-07-17Assigned to "HANA Electronics"

Nearby in the registry

The prefixes assigned immediately before and after 40:D5:63:

FAQ

Which company owns MAC address prefix 40:D5:63?: MAC address prefix 40:D5:63 is registered to HANA Electronics in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 40:D5:63 has a network interface built by HANA Electronics.
What is the OUI 40:D5:63?: 40:D5:63 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to HANA Electronics. It covers every address from 40:D5:63:00:00:00 to 40:D5:63:FF:FF:FF, or 16,777,216 addresses in total. It is also written 40-D5-63.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 40:D5:63:00:00:00 that is 40:D5:63 — 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 HANA Electronics located?: HANA Electronics is listed at Av. Abiurana, 450 Manaus Amazonas BR 69075-010 in the IEEE OUI registry entry for 40:D5:63. This is the address the organization registered with the IEEE, which may differ from its current operating address.