Which company owns MAC address prefix FC:C2:E5?

MAC address prefix FC:C2:E5 is registered to HOLOWITS TECHNOLOGIES CO.,LTD in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with FC:C2:E5 has a network interface built by HOLOWITS TECHNOLOGIES CO.,LTD.

What is the OUI FC:C2:E5?

FC:C2:E5 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to HOLOWITS TECHNOLOGIES CO.,LTD. It covers every address from FC:C2:E5:00:00:00 to FC:C2:E5:FF:FF:FF, or 16,777,216 addresses in total. It is also written FC-C2-E5.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in FC:C2:E5:00:00:00 that is FC:C2:E5 — 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 HOLOWITS TECHNOLOGIES CO.,LTD located?

HOLOWITS TECHNOLOGIES CO.,LTD is listed at 1 HARBOURFRONT AVENUE,#14-08,KEPPEL BAY TOWER,SINGAPORE Singapore SG 098632 in the IEEE OUI registry entry for FC:C2:E5. This is the address the organization registered with the IEEE, which may differ from its current operating address.

HOLOWITS TECHNOLOGIES CO.,LTD

MAC address prefix FC:C2:E5 is registered to HOLOWITS TECHNOLOGIES CO.,LTD in the IEEE OUI registry. Any device whose MAC address begins with FC:C2:E5 has a network interface built by HOLOWITS TECHNOLOGIES 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 FC:C2:E5:00:00:00 to FC:C2:E5:FF:FF:FF.

OUI prefix: FC:C2:E5
Hyphen form: FC-C2-E5
MAC range: FC:C2:E5:00:00:00 – FC:C2:E5:FF:FF:FF
Addresses in block: 16,777,216
Organization: HOLOWITS TECHNOLOGIES CO.,LTD
Address: 1 HARBOURFRONT AVENUE,#14-08,KEPPEL BAY TOWER,SINGAPORE Singapore SG 098632
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.

2024-11-20Assigned to "HOLOWITS TECHNOLOGIES CO.,LTD"
archived source →
2026-07-17Assigned to "HOLOWITS TECHNOLOGIES CO.,LTD"

Nearby in the registry

The prefixes assigned immediately before and after FC:C2:E5:

FAQ

Which company owns MAC address prefix FC:C2:E5?: MAC address prefix FC:C2:E5 is registered to HOLOWITS TECHNOLOGIES CO.,LTD in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with FC:C2:E5 has a network interface built by HOLOWITS TECHNOLOGIES CO.,LTD.
What is the OUI FC:C2:E5?: FC:C2:E5 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to HOLOWITS TECHNOLOGIES CO.,LTD. It covers every address from FC:C2:E5:00:00:00 to FC:C2:E5:FF:FF:FF, or 16,777,216 addresses in total. It is also written FC-C2-E5.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in FC:C2:E5:00:00:00 that is FC:C2:E5 — 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 HOLOWITS TECHNOLOGIES CO.,LTD located?: HOLOWITS TECHNOLOGIES CO.,LTD is listed at 1 HARBOURFRONT AVENUE,#14-08,KEPPEL BAY TOWER,SINGAPORE Singapore SG 098632 in the IEEE OUI registry entry for FC:C2:E5. This is the address the organization registered with the IEEE, which may differ from its current operating address.