Which company owns MAC address prefix C8:9E:61?

MAC address prefix C8:9E:61 is registered to Lyngsoe Systems LTd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with C8:9E:61 has a network interface built by Lyngsoe Systems LTd.

What is the OUI C8:9E:61?

C8:9E:61 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Lyngsoe Systems LTd. It covers every address from C8:9E:61:00:00:00 to C8:9E:61:FF:FF:FF, or 16,777,216 addresses in total. It is also written C8-9E-61.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in C8:9E:61:00:00:00 that is C8:9E:61 — 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 Lyngsoe Systems LTd located?

Lyngsoe Systems LTd is listed at 101 Simona Dr., Unit 2 Bolton Ontario CA L7E 4E8 in the IEEE OUI registry entry for C8:9E:61. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Lyngsoe Systems LTd

MAC address prefix C8:9E:61 is registered to Lyngsoe Systems LTd in the IEEE OUI registry. Any device whose MAC address begins with C8:9E:61 has a network interface built by Lyngsoe Systems 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 C8:9E:61:00:00:00 to C8:9E:61:FF:FF:FF.

OUI prefix: C8:9E:61
Hyphen form: C8-9E-61
MAC range: C8:9E:61:00:00:00 – C8:9E:61:FF:FF:FF
Addresses in block: 16,777,216
Organization: Lyngsoe Systems LTd
Address: 101 Simona Dr., Unit 2 Bolton Ontario CA L7E 4E8
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 "Lyngsoe Systems LTd"

Nearby in the registry

The prefixes assigned immediately before and after C8:9E:61:

FAQ

Which company owns MAC address prefix C8:9E:61?: MAC address prefix C8:9E:61 is registered to Lyngsoe Systems LTd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with C8:9E:61 has a network interface built by Lyngsoe Systems LTd.
What is the OUI C8:9E:61?: C8:9E:61 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Lyngsoe Systems LTd. It covers every address from C8:9E:61:00:00:00 to C8:9E:61:FF:FF:FF, or 16,777,216 addresses in total. It is also written C8-9E-61.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in C8:9E:61:00:00:00 that is C8:9E:61 — 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 Lyngsoe Systems LTd located?: Lyngsoe Systems LTd is listed at 101 Simona Dr., Unit 2 Bolton Ontario CA L7E 4E8 in the IEEE OUI registry entry for C8:9E:61. This is the address the organization registered with the IEEE, which may differ from its current operating address.