Which company owns MAC address prefix E0:D7:38?

MAC address prefix E0:D7:38 is registered to WireStar Networks in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with E0:D7:38 has a network interface built by WireStar Networks.

What is the OUI E0:D7:38?

E0:D7:38 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to WireStar Networks. It covers every address from E0:D7:38:00:00:00 to E0:D7:38:FF:FF:FF, or 16,777,216 addresses in total. It is also written E0-D7-38.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in E0:D7:38:00:00:00 that is E0:D7:38 — 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 WireStar Networks located?

WireStar Networks is listed at PO Box 10966 College Station TX US 77842 in the IEEE OUI registry entry for E0:D7:38. This is the address the organization registered with the IEEE, which may differ from its current operating address.

WireStar Networks

MAC address prefix E0:D7:38 is registered to WireStar Networks in the IEEE OUI registry. Any device whose MAC address begins with E0:D7:38 has a network interface built by WireStar Networks. 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 E0:D7:38:00:00:00 to E0:D7:38:FF:FF:FF.

OUI prefix: E0:D7:38
Hyphen form: E0-D7-38
MAC range: E0:D7:38:00:00:00 – E0:D7:38:FF:FF:FF
Addresses in block: 16,777,216
Organization: WireStar Networks
Address: PO Box 10966 College Station TX US 77842
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.

2022-07-11Assigned to "WireStar Networks"
archived source →
2026-07-17Assigned to "WireStar Networks"

Nearby in the registry

The prefixes assigned immediately before and after E0:D7:38:

FAQ

Which company owns MAC address prefix E0:D7:38?: MAC address prefix E0:D7:38 is registered to WireStar Networks in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with E0:D7:38 has a network interface built by WireStar Networks.
What is the OUI E0:D7:38?: E0:D7:38 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to WireStar Networks. It covers every address from E0:D7:38:00:00:00 to E0:D7:38:FF:FF:FF, or 16,777,216 addresses in total. It is also written E0-D7-38.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in E0:D7:38:00:00:00 that is E0:D7:38 — 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 WireStar Networks located?: WireStar Networks is listed at PO Box 10966 College Station TX US 77842 in the IEEE OUI registry entry for E0:D7:38. This is the address the organization registered with the IEEE, which may differ from its current operating address.