Which company owns MAC address prefix 00:09:FB?

MAC address prefix 00:09:FB is registered to Philips Patient Monitoring in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 00:09:FB has a network interface built by Philips Patient Monitoring.

What is the OUI 00:09:FB?

00:09:FB is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Philips Patient Monitoring. It covers every address from 00:09:FB:00:00:00 to 00:09:FB:FF:FF:FF, or 16,777,216 addresses in total. It is also written 00-09-FB.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 00:09:FB:00:00:00 that is 00:09:FB — 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 Philips Patient Monitoring located?

Philips Patient Monitoring is listed at Hewlett-Packard-Str.2 Boeblingen DE 71034 in the IEEE OUI registry entry for 00:09:FB. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Philips Patient Monitoring

MAC address prefix 00:09:FB is registered to Philips Patient Monitoring in the IEEE OUI registry. Any device whose MAC address begins with 00:09:FB has a network interface built by Philips Patient Monitoring. 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 00:09:FB:00:00:00 to 00:09:FB:FF:FF:FF.

OUI prefix: 00:09:FB
Hyphen form: 00-09-FB
MAC range: 00:09:FB:00:00:00 – 00:09:FB:FF:FF:FF
Addresses in block: 16,777,216
Organization: Philips Patient Monitoring
Address: Hewlett-Packard-Str.2 Boeblingen DE 71034
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 "Philips Patient Monitoring"
archived source →
2026-07-17Assigned to "Philips Patient Monitoring"

Nearby in the registry

The prefixes assigned immediately before and after 00:09:FB:

FAQ

Which company owns MAC address prefix 00:09:FB?: MAC address prefix 00:09:FB is registered to Philips Patient Monitoring in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 00:09:FB has a network interface built by Philips Patient Monitoring.
What is the OUI 00:09:FB?: 00:09:FB is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Philips Patient Monitoring. It covers every address from 00:09:FB:00:00:00 to 00:09:FB:FF:FF:FF, or 16,777,216 addresses in total. It is also written 00-09-FB.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 00:09:FB:00:00:00 that is 00:09:FB — 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 Philips Patient Monitoring located?: Philips Patient Monitoring is listed at Hewlett-Packard-Str.2 Boeblingen DE 71034 in the IEEE OUI registry entry for 00:09:FB. This is the address the organization registered with the IEEE, which may differ from its current operating address.