Which company owns MAC address prefix 64:CB:A3?

MAC address prefix 64:CB:A3 is registered to Pointmobile in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 64:CB:A3 has a network interface built by Pointmobile.

What is the OUI 64:CB:A3?

64:CB:A3 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Pointmobile. It covers every address from 64:CB:A3:00:00:00 to 64:CB:A3:FF:FF:FF, or 16,777,216 addresses in total. It is also written 64-CB-A3.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 64:CB:A3:00:00:00 that is 64:CB:A3 — 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 Pointmobile located?

Pointmobile is listed at B-9F kabul Great Valley, 32, Digital-ro 9-gil, Geumcheon-gu Seoul Seoul KR 08512 in the IEEE OUI registry entry for 64:CB:A3. This is the address the organization registered with the IEEE, which may differ from its current operating address.

How many MAC prefixes does Pointmobile own?

Pointmobile holds 2 OUI prefixes in the IEEE registry, of which 64:CB:A3 is one. A device made by Pointmobile could carry a MAC address from any of them.

Pointmobile

MAC address prefix 64:CB:A3 is registered to Pointmobile in the IEEE OUI registry. Any device whose MAC address begins with 64:CB:A3 has a network interface built by Pointmobile. 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 64:CB:A3:00:00:00 to 64:CB:A3:FF:FF:FF.

OUI prefix: 64:CB:A3
Hyphen form: 64-CB-A3
MAC range: 64:CB:A3:00:00:00 – 64:CB:A3:FF:FF:FF
Addresses in block: 16,777,216
Organization: Pointmobile
Address: B-9F kabul Great Valley, 32, Digital-ro 9-gil, Geumcheon-gu Seoul Seoul KR 08512
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 Pointmobile

Pointmobile holds 2 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:

00:24:06

Assignment history (2)

The IEEE registry publishes current state only — this is the change record we've kept since we started tracking it daily.

2017-09-08Assigned to "Pointmobile"
archived source →
2026-07-17Assigned to "Pointmobile"

Nearby in the registry

The prefixes assigned immediately before and after 64:CB:A3:

FAQ

Which company owns MAC address prefix 64:CB:A3?: MAC address prefix 64:CB:A3 is registered to Pointmobile in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 64:CB:A3 has a network interface built by Pointmobile.
What is the OUI 64:CB:A3?: 64:CB:A3 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Pointmobile. It covers every address from 64:CB:A3:00:00:00 to 64:CB:A3:FF:FF:FF, or 16,777,216 addresses in total. It is also written 64-CB-A3.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 64:CB:A3:00:00:00 that is 64:CB:A3 — 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 Pointmobile located?: Pointmobile is listed at B-9F kabul Great Valley, 32, Digital-ro 9-gil, Geumcheon-gu Seoul Seoul KR 08512 in the IEEE OUI registry entry for 64:CB:A3. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does Pointmobile own?: Pointmobile holds 2 OUI prefixes in the IEEE registry, of which 64:CB:A3 is one. A device made by Pointmobile could carry a MAC address from any of them.