Which company owns MAC address prefix 94:D0:19?

MAC address prefix 94:D0:19 is registered to Cydle Corp. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 94:D0:19 has a network interface built by Cydle Corp..

What is the OUI 94:D0:19?

94:D0:19 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Cydle Corp.. It covers every address from 94:D0:19:00:00:00 to 94:D0:19:FF:FF:FF, or 16,777,216 addresses in total. It is also written 94-D0-19.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 94:D0:19:00:00:00 that is 94:D0:19 — 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 Cydle Corp. located?

Cydle Corp. is listed at 1203, KofomoTower, 16-3 , Sunae-Dong, Bundang-Gu Seongnam-City Gyeonggi-Do KR 463825 in the IEEE OUI registry entry for 94:D0:19. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Cydle Corp.

MAC address prefix 94:D0:19 is registered to Cydle Corp. in the IEEE OUI registry. Any device whose MAC address begins with 94:D0:19 has a network interface built by Cydle Corp.. 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 94:D0:19:00:00:00 to 94:D0:19:FF:FF:FF.

OUI prefix: 94:D0:19
Hyphen form: 94-D0-19
MAC range: 94:D0:19:00:00:00 – 94:D0:19:FF:FF:FF
Addresses in block: 16,777,216
Organization: Cydle Corp.
Address: 1203, KofomoTower, 16-3 , Sunae-Dong, Bundang-Gu Seongnam-City Gyeonggi-Do KR 463825
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.

2016-07-29Assigned to "Cydle Corp."
archived source →
2026-07-17Assigned to "Cydle Corp."

Nearby in the registry

The prefixes assigned immediately before and after 94:D0:19:

FAQ

Which company owns MAC address prefix 94:D0:19?: MAC address prefix 94:D0:19 is registered to Cydle Corp. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 94:D0:19 has a network interface built by Cydle Corp..
What is the OUI 94:D0:19?: 94:D0:19 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Cydle Corp.. It covers every address from 94:D0:19:00:00:00 to 94:D0:19:FF:FF:FF, or 16,777,216 addresses in total. It is also written 94-D0-19.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 94:D0:19:00:00:00 that is 94:D0:19 — 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 Cydle Corp. located?: Cydle Corp. is listed at 1203, KofomoTower, 16-3 , Sunae-Dong, Bundang-Gu Seongnam-City Gyeonggi-Do KR 463825 in the IEEE OUI registry entry for 94:D0:19. This is the address the organization registered with the IEEE, which may differ from its current operating address.