Which company owns MAC address prefix 00:06:33?

MAC address prefix 00:06:33 is registered to Crossmatch Technologies/HID Global in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 00:06:33 has a network interface built by Crossmatch Technologies/HID Global.

What is the OUI 00:06:33?

00:06:33 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Crossmatch Technologies/HID Global. It covers every address from 00:06:33:00:00:00 to 00:06:33:FF:FF:FF, or 16,777,216 addresses in total. It is also written 00-06-33.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 00:06:33:00:00:00 that is 00:06:33 — 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 Crossmatch Technologies/HID Global located?

Crossmatch Technologies/HID Global is listed at Unstrutweg 4 Jena DE 07743 in the IEEE OUI registry entry for 00:06:33. This is the address the organization registered with the IEEE, which may differ from its current operating address.

How many MAC prefixes does Crossmatch Technologies/HID Global own?

Crossmatch Technologies/HID Global holds 2 OUI prefixes in the IEEE registry, of which 00:06:33 is one. A device made by Crossmatch Technologies/HID Global could carry a MAC address from any of them.

Crossmatch Technologies/HID Global

MAC address prefix 00:06:33 is registered to Crossmatch Technologies/HID Global in the IEEE OUI registry. Any device whose MAC address begins with 00:06:33 has a network interface built by Crossmatch Technologies/HID Global. 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 00:06:33:00:00:00 to 00:06:33:FF:FF:FF.

OUI prefix: 00:06:33
Hyphen form: 00-06-33
MAC range: 00:06:33:00:00:00 – 00:06:33:FF:FF:FF
Addresses in block: 16,777,216
Organization: Crossmatch Technologies/HID Global
Address: Unstrutweg 4 Jena DE 07743
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.

Other prefixes from Crossmatch Technologies/HID Global

Crossmatch Technologies/HID Global holds 2 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:

00:30:8E

Assignment history (3)

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 "Cross Match Technologies GmbH"
archived source →
2024-02-15Renamed from "Cross Match Technologies GmbH" to "Crossmatch Technologies/HID Global"
archived source →
2026-07-17Assigned to "Crossmatch Technologies/HID Global"

Nearby in the registry

The prefixes assigned immediately before and after 00:06:33:

FAQ

Which company owns MAC address prefix 00:06:33?: MAC address prefix 00:06:33 is registered to Crossmatch Technologies/HID Global in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 00:06:33 has a network interface built by Crossmatch Technologies/HID Global.
What is the OUI 00:06:33?: 00:06:33 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Crossmatch Technologies/HID Global. It covers every address from 00:06:33:00:00:00 to 00:06:33:FF:FF:FF, or 16,777,216 addresses in total. It is also written 00-06-33.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 00:06:33:00:00:00 that is 00:06:33 — 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 Crossmatch Technologies/HID Global located?: Crossmatch Technologies/HID Global is listed at Unstrutweg 4 Jena DE 07743 in the IEEE OUI registry entry for 00:06:33. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does Crossmatch Technologies/HID Global own?: Crossmatch Technologies/HID Global holds 2 OUI prefixes in the IEEE registry, of which 00:06:33 is one. A device made by Crossmatch Technologies/HID Global could carry a MAC address from any of them.