Which company owns MAC address prefix AC:1F:D7?

MAC address prefix AC:1F:D7 is registered to Real Vision Technology Co.,Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with AC:1F:D7 has a network interface built by Real Vision Technology Co.,Ltd..

What is the OUI AC:1F:D7?

AC:1F:D7 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Real Vision Technology Co.,Ltd.. It covers every address from AC:1F:D7:00:00:00 to AC:1F:D7:FF:FF:FF, or 16,777,216 addresses in total. It is also written AC-1F-D7.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in AC:1F:D7:00:00:00 that is AC:1F:D7 — 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 Real Vision Technology Co.,Ltd. located?

Real Vision Technology Co.,Ltd. is listed at A-805, 537, Dunchon-daero, Jungwon-gu Seongnam-si Gyeonggi-do KR 13216 in the IEEE OUI registry entry for AC:1F:D7. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Real Vision Technology Co.,Ltd.

MAC address prefix AC:1F:D7 is registered to Real Vision Technology Co.,Ltd. in the IEEE OUI registry. Any device whose MAC address begins with AC:1F:D7 has a network interface built by Real Vision Technology Co.,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 AC:1F:D7:00:00:00 to AC:1F:D7:FF:FF:FF.

OUI prefix: AC:1F:D7
Hyphen form: AC-1F-D7
MAC range: AC:1F:D7:00:00:00 – AC:1F:D7:FF:FF:FF
Addresses in block: 16,777,216
Organization: Real Vision Technology Co.,Ltd.
Address: A-805, 537, Dunchon-daero, Jungwon-gu Seongnam-si Gyeonggi-do KR 13216
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 "Real Vision Technology Co.,Ltd."
archived source →
2026-07-17Assigned to "Real Vision Technology Co.,Ltd."

Nearby in the registry

The prefixes assigned immediately before and after AC:1F:D7:

FAQ

Which company owns MAC address prefix AC:1F:D7?: MAC address prefix AC:1F:D7 is registered to Real Vision Technology Co.,Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with AC:1F:D7 has a network interface built by Real Vision Technology Co.,Ltd..
What is the OUI AC:1F:D7?: AC:1F:D7 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Real Vision Technology Co.,Ltd.. It covers every address from AC:1F:D7:00:00:00 to AC:1F:D7:FF:FF:FF, or 16,777,216 addresses in total. It is also written AC-1F-D7.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in AC:1F:D7:00:00:00 that is AC:1F:D7 — 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 Real Vision Technology Co.,Ltd. located?: Real Vision Technology Co.,Ltd. is listed at A-805, 537, Dunchon-daero, Jungwon-gu Seongnam-si Gyeonggi-do KR 13216 in the IEEE OUI registry entry for AC:1F:D7. This is the address the organization registered with the IEEE, which may differ from its current operating address.