Which company owns MAC address prefix 48:54:15?

MAC address prefix 48:54:15 is registered to NET RULES TECNOLOGIA EIRELI in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 48:54:15 has a network interface built by NET RULES TECNOLOGIA EIRELI.

What is the OUI 48:54:15?

48:54:15 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to NET RULES TECNOLOGIA EIRELI. It covers every address from 48:54:15:00:00:00 to 48:54:15:FF:FF:FF, or 16,777,216 addresses in total. It is also written 48-54-15.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 48:54:15:00:00:00 that is 48:54:15 — 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 NET RULES TECNOLOGIA EIRELI located?

NET RULES TECNOLOGIA EIRELI is listed at Rua Madre Cabrini, 240 - 7°andar São Paulo São Paulo BR 04020000 in the IEEE OUI registry entry for 48:54:15. This is the address the organization registered with the IEEE, which may differ from its current operating address.

NET RULES TECNOLOGIA EIRELI

MAC address prefix 48:54:15 is registered to NET RULES TECNOLOGIA EIRELI in the IEEE OUI registry. Any device whose MAC address begins with 48:54:15 has a network interface built by NET RULES TECNOLOGIA EIRELI. 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 48:54:15:00:00:00 to 48:54:15:FF:FF:FF.

OUI prefix: 48:54:15
Hyphen form: 48-54-15
MAC range: 48:54:15:00:00:00 – 48:54:15:FF:FF:FF
Addresses in block: 16,777,216
Organization: NET RULES TECNOLOGIA EIRELI
Address: Rua Madre Cabrini, 240 - 7°andar São Paulo São Paulo BR 04020000
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 "NET RULES TECNOLOGIA EIRELI"
archived source →
2026-07-17Assigned to "NET RULES TECNOLOGIA EIRELI"

Nearby in the registry

The prefixes assigned immediately before and after 48:54:15:

FAQ

Which company owns MAC address prefix 48:54:15?: MAC address prefix 48:54:15 is registered to NET RULES TECNOLOGIA EIRELI in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 48:54:15 has a network interface built by NET RULES TECNOLOGIA EIRELI.
What is the OUI 48:54:15?: 48:54:15 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to NET RULES TECNOLOGIA EIRELI. It covers every address from 48:54:15:00:00:00 to 48:54:15:FF:FF:FF, or 16,777,216 addresses in total. It is also written 48-54-15.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 48:54:15:00:00:00 that is 48:54:15 — 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 NET RULES TECNOLOGIA EIRELI located?: NET RULES TECNOLOGIA EIRELI is listed at Rua Madre Cabrini, 240 - 7°andar São Paulo São Paulo BR 04020000 in the IEEE OUI registry entry for 48:54:15. This is the address the organization registered with the IEEE, which may differ from its current operating address.