Which company owns MAC address prefix 98:50:A3?

MAC address prefix 98:50:A3 is registered to SIGNALTEK JSC in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 98:50:A3 has a network interface built by SIGNALTEK JSC.

What is the OUI 98:50:A3?

98:50:A3 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to SIGNALTEK JSC. It covers every address from 98:50:A3:00:00:00 to 98:50:A3:FF:FF:FF, or 16,777,216 addresses in total. It is also written 98-50-A3.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 98:50:A3:00:00:00 that is 98:50:A3 — 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 SIGNALTEK JSC located?

SIGNALTEK JSC is listed at 2 Ivovaya street, floor 4, office 1, Room 45 Moscow 2 Ivovaya street, floor 4, office 1, Room 45 RU 129329 in the IEEE OUI registry entry for 98:50:A3. This is the address the organization registered with the IEEE, which may differ from its current operating address.

SIGNALTEK JSC

MAC address prefix 98:50:A3 is registered to SIGNALTEK JSC in the IEEE OUI registry. Any device whose MAC address begins with 98:50:A3 has a network interface built by SIGNALTEK JSC. 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 98:50:A3:00:00:00 to 98:50:A3:FF:FF:FF.

OUI prefix: 98:50:A3
Hyphen form: 98-50-A3
MAC range: 98:50:A3:00:00:00 – 98:50:A3:FF:FF:FF
Addresses in block: 16,777,216
Organization: SIGNALTEK JSC
Address: 2 Ivovaya street, floor 4, office 1, Room 45 Moscow 2 Ivovaya street, floor 4, office 1, Room 45 RU 129329
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 (1)

The IEEE registry publishes current state only — this is the change record we've kept since we started tracking it daily.

2026-07-17Assigned to "SIGNALTEK JSC"

Nearby in the registry

The prefixes assigned immediately before and after 98:50:A3:

FAQ

Which company owns MAC address prefix 98:50:A3?: MAC address prefix 98:50:A3 is registered to SIGNALTEK JSC in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 98:50:A3 has a network interface built by SIGNALTEK JSC.
What is the OUI 98:50:A3?: 98:50:A3 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to SIGNALTEK JSC. It covers every address from 98:50:A3:00:00:00 to 98:50:A3:FF:FF:FF, or 16,777,216 addresses in total. It is also written 98-50-A3.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 98:50:A3:00:00:00 that is 98:50:A3 — 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 SIGNALTEK JSC located?: SIGNALTEK JSC is listed at 2 Ivovaya street, floor 4, office 1, Room 45 Moscow 2 Ivovaya street, floor 4, office 1, Room 45 RU 129329 in the IEEE OUI registry entry for 98:50:A3. This is the address the organization registered with the IEEE, which may differ from its current operating address.