Which company owns MAC address prefix 78:A4:BA?

MAC address prefix 78:A4:BA is registered to Marquardt India Pvt Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 78:A4:BA has a network interface built by Marquardt India Pvt Ltd.

What is the OUI 78:A4:BA?

78:A4:BA is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Marquardt India Pvt Ltd. It covers every address from 78:A4:BA:00:00:00 to 78:A4:BA:FF:FF:FF, or 16,777,216 addresses in total. It is also written 78-A4-BA.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 78:A4:BA:00:00:00 that is 78:A4:BA — 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 Marquardt India Pvt Ltd located?

Marquardt India Pvt Ltd is listed at Plot No.21/3, Rajiv Gandhi Infotech Park (SEZ),Hinjewadi phase 3, “Hinjewadi – Maan”, Village –Maan, Taluka – Mulshi, Dist. - Pune, Pune Maharashtra IN 411057 in the IEEE OUI registry entry for 78:A4:BA. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Marquardt India Pvt Ltd

MAC address prefix 78:A4:BA is registered to Marquardt India Pvt Ltd in the IEEE OUI registry. Any device whose MAC address begins with 78:A4:BA has a network interface built by Marquardt India Pvt 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 78:A4:BA:00:00:00 to 78:A4:BA:FF:FF:FF.

OUI prefix: 78:A4:BA
Hyphen form: 78-A4-BA
MAC range: 78:A4:BA:00:00:00 – 78:A4:BA:FF:FF:FF
Addresses in block: 16,777,216
Organization: Marquardt India Pvt Ltd
Address: Plot No.21/3, Rajiv Gandhi Infotech Park (SEZ),Hinjewadi phase 3, “Hinjewadi – Maan”, Village –Maan, Taluka – Mulshi, Dist. - Pune, Pune Maharashtra IN 411057
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.

2024-11-20Assigned to "Marquardt India Pvt Ltd"
archived source →
2026-07-17Assigned to "Marquardt India Pvt Ltd"

Nearby in the registry

The prefixes assigned immediately before and after 78:A4:BA:

FAQ

Which company owns MAC address prefix 78:A4:BA?: MAC address prefix 78:A4:BA is registered to Marquardt India Pvt Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 78:A4:BA has a network interface built by Marquardt India Pvt Ltd.
What is the OUI 78:A4:BA?: 78:A4:BA is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Marquardt India Pvt Ltd. It covers every address from 78:A4:BA:00:00:00 to 78:A4:BA:FF:FF:FF, or 16,777,216 addresses in total. It is also written 78-A4-BA.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 78:A4:BA:00:00:00 that is 78:A4:BA — 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 Marquardt India Pvt Ltd located?: Marquardt India Pvt Ltd is listed at Plot No.21/3, Rajiv Gandhi Infotech Park (SEZ),Hinjewadi phase 3, “Hinjewadi – Maan”, Village –Maan, Taluka – Mulshi, Dist. - Pune, Pune Maharashtra IN 411057 in the IEEE OUI registry entry for 78:A4:BA. This is the address the organization registered with the IEEE, which may differ from its current operating address.