Which company owns MAC address prefix C8:77:8B?

MAC address prefix C8:77:8B is registered to Mercury Systems – Trusted Mission Solutions, Inc. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with C8:77:8B has a network interface built by Mercury Systems – Trusted Mission Solutions, Inc..

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in C8:77:8B:00:00:00 that is C8:77:8B — 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.

How many MAC prefixes does Mercury Systems – Trusted Mission Solutions, Inc. own?

Mercury Systems – Trusted Mission Solutions, Inc. holds 2 OUI prefixes in the IEEE registry, of which C8:77:8B is one. A device made by Mercury Systems – Trusted Mission Solutions, Inc. could carry a MAC address from any of them.

Mercury Systems – Trusted Mission Solutions, Inc.

MAC address prefix C8:77:8B is registered to Mercury Systems – Trusted Mission Solutions, Inc. in the IEEE OUI registry. Any device whose MAC address begins with C8:77:8B has a network interface built by Mercury Systems – Trusted Mission Solutions, Inc.. 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 C8:77:8B:00:00:00 to C8:77:8B:FF:FF:FF.

OUI prefix: C8:77:8B
Hyphen form: C8-77-8B
MAC range: C8:77:8B:00:00:00 – C8:77:8B:FF:FF:FF
Addresses in block: 16,777,216
Organization: Mercury Systems – Trusted Mission Solutions, Inc.
Address: 47200 Bayside Pkwy Fremont CA US 94538
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.

Other prefixes from Mercury Systems – Trusted Mission Solutions, Inc.

Mercury Systems – Trusted Mission Solutions, Inc. holds 2 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:

00:80:B6

Assignment history (3)

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 "Themis Computer"
archived source →
2018-12-21Renamed from "Themis Computer" to "Mercury Systems – Trusted Mission Solutions, Inc."
archived source →
2026-07-17Assigned to "Mercury Systems – Trusted Mission Solutions, Inc."

Nearby in the registry

The prefixes assigned immediately before and after C8:77:8B:

FAQ

Which company owns MAC address prefix C8:77:8B?: MAC address prefix C8:77:8B is registered to Mercury Systems – Trusted Mission Solutions, Inc. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with C8:77:8B has a network interface built by Mercury Systems – Trusted Mission Solutions, Inc..
What is the OUI C8:77:8B?: C8:77:8B is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Mercury Systems – Trusted Mission Solutions, Inc.. It covers every address from C8:77:8B:00:00:00 to C8:77:8B:FF:FF:FF, or 16,777,216 addresses in total. It is also written C8-77-8B.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in C8:77:8B:00:00:00 that is C8:77:8B — 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 Mercury Systems – Trusted Mission Solutions, Inc. located?: Mercury Systems – Trusted Mission Solutions, Inc. is listed at 47200 Bayside Pkwy Fremont CA US 94538 in the IEEE OUI registry entry for C8:77:8B. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does Mercury Systems – Trusted Mission Solutions, Inc. own?: Mercury Systems – Trusted Mission Solutions, Inc. holds 2 OUI prefixes in the IEEE registry, of which C8:77:8B is one. A device made by Mercury Systems – Trusted Mission Solutions, Inc. could carry a MAC address from any of them.