Which company owns MAC address prefix 30:B2:16?

MAC address prefix 30:B2:16 is registered to Hitachi Energy Germany AG in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 30:B2:16 has a network interface built by Hitachi Energy Germany AG.

What is the OUI 30:B2:16?

30:B2:16 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Hitachi Energy Germany AG. It covers every address from 30:B2:16:00:00:00 to 30:B2:16:FF:FF:FF, or 16,777,216 addresses in total. It is also written 30-B2-16.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 30:B2:16:00:00:00 that is 30:B2:16 — 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 Hitachi Energy Germany AG located?

Hitachi Energy Germany AG is listed at Havellandstr. 10-14 Mannheim DE 68309 in the IEEE OUI registry entry for 30:B2:16. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Hitachi Energy Germany AG

MAC address prefix 30:B2:16 is registered to Hitachi Energy Germany AG in the IEEE OUI registry. Any device whose MAC address begins with 30:B2:16 has a network interface built by Hitachi Energy Germany AG. 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 30:B2:16:00:00:00 to 30:B2:16:FF:FF:FF.

OUI prefix: 30:B2:16
Hyphen form: 30-B2-16
MAC range: 30:B2:16:00:00:00 – 30:B2:16:FF:FF:FF
Addresses in block: 16,777,216
Organization: Hitachi Energy Germany AG
Address: Havellandstr. 10-14 Mannheim DE 68309
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 (7)

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 "Hytec Geraetebau GmbH"
archived source →
2018-12-21Renamed from "Hytec Geraetebau GmbH" to "ABB AG - Power Grids - Grid Automation"
archived source →
2020-03-21Renamed from "ABB AG - Power Grids - Grid Automation" to "ABB Power Grids Germany AG – Grid Automation"
archived source →
2020-08-05Renamed from "ABB Power Grids Germany AG – Grid Automation" to "Hitachi ABB Power Grids – Grid Automation"
archived source →
2022-07-11Renamed from "Hitachi ABB Power Grids – Grid Automation" to "Hitachi Energy"
archived source →
2023-07-11Renamed from "Hitachi Energy" to "Hitachi Energy Germany AG"
archived source →
2026-07-17Assigned to "Hitachi Energy Germany AG"

Nearby in the registry

The prefixes assigned immediately before and after 30:B2:16:

FAQ

Which company owns MAC address prefix 30:B2:16?: MAC address prefix 30:B2:16 is registered to Hitachi Energy Germany AG in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 30:B2:16 has a network interface built by Hitachi Energy Germany AG.
What is the OUI 30:B2:16?: 30:B2:16 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Hitachi Energy Germany AG. It covers every address from 30:B2:16:00:00:00 to 30:B2:16:FF:FF:FF, or 16,777,216 addresses in total. It is also written 30-B2-16.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 30:B2:16:00:00:00 that is 30:B2:16 — 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 Hitachi Energy Germany AG located?: Hitachi Energy Germany AG is listed at Havellandstr. 10-14 Mannheim DE 68309 in the IEEE OUI registry entry for 30:B2:16. This is the address the organization registered with the IEEE, which may differ from its current operating address.