Which company owns MAC address prefix 00:90:39?

MAC address prefix 00:90:39 is registered to SHASTA NETWORKS in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 00:90:39 has a network interface built by SHASTA NETWORKS.

What is the OUI 00:90:39?

00:90:39 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to SHASTA NETWORKS. It covers every address from 00:90:39:00:00:00 to 00:90:39:FF:FF:FF, or 16,777,216 addresses in total. It is also written 00-90-39.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 00:90:39:00:00:00 that is 00:90:39 — 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 SHASTA NETWORKS located?

SHASTA NETWORKS is listed at 249 HUMBOLDT COURT SUNNYVALE CA US 94089-1300 in the IEEE OUI registry entry for 00:90:39. This is the address the organization registered with the IEEE, which may differ from its current operating address.

SHASTA NETWORKS

MAC address prefix 00:90:39 is registered to SHASTA NETWORKS in the IEEE OUI registry. Any device whose MAC address begins with 00:90:39 has a network interface built by SHASTA 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 00:90:39:00:00:00 to 00:90:39:FF:FF:FF.

OUI prefix: 00:90:39
Hyphen form: 00-90-39
MAC range: 00:90:39:00:00:00 – 00:90:39:FF:FF:FF
Addresses in block: 16,777,216
Organization: SHASTA NETWORKS
Address: 249 HUMBOLDT COURT SUNNYVALE CA US 94089-1300
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 "SHASTA NETWORKS"
archived source →
2026-07-17Assigned to "SHASTA NETWORKS"

Nearby in the registry

The prefixes assigned immediately before and after 00:90:39:

FAQ

Which company owns MAC address prefix 00:90:39?: MAC address prefix 00:90:39 is registered to SHASTA NETWORKS in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 00:90:39 has a network interface built by SHASTA NETWORKS.
What is the OUI 00:90:39?: 00:90:39 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to SHASTA NETWORKS. It covers every address from 00:90:39:00:00:00 to 00:90:39:FF:FF:FF, or 16,777,216 addresses in total. It is also written 00-90-39.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 00:90:39:00:00:00 that is 00:90:39 — 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 SHASTA NETWORKS located?: SHASTA NETWORKS is listed at 249 HUMBOLDT COURT SUNNYVALE CA US 94089-1300 in the IEEE OUI registry entry for 00:90:39. This is the address the organization registered with the IEEE, which may differ from its current operating address.