Which company owns MAC address prefix E0:D8:C4?

MAC address prefix E0:D8:C4 is registered to Qingdao Intelligent&Precise Electronics Co.,Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with E0:D8:C4 has a network interface built by Qingdao Intelligent&Precise Electronics Co.,Ltd..

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in E0:D8:C4:00:00:00 that is E0:D8:C4 — 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.

How many MAC prefixes does Qingdao Intelligent&Precise Electronics Co.,Ltd. own?

Qingdao Intelligent&Precise Electronics Co.,Ltd. holds 22 OUI prefixes in the IEEE registry, of which E0:D8:C4 is one. A device made by Qingdao Intelligent&Precise Electronics Co.,Ltd. could carry a MAC address from any of them.

Qingdao Intelligent&Precise Electronics Co.,Ltd.

MAC address prefix E0:D8:C4 is registered to Qingdao Intelligent&Precise Electronics Co.,Ltd. in the IEEE OUI registry. Any device whose MAC address begins with E0:D8:C4 has a network interface built by Qingdao Intelligent&Precise Electronics 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 E0:D8:C4:00:00:00 to E0:D8:C4:FF:FF:FF.

OUI prefix: E0:D8:C4
Hyphen form: E0-D8-C4
MAC range: E0:D8:C4:00:00:00 – E0:D8:C4:FF:FF:FF
Addresses in block: 16,777,216
Organization: Qingdao Intelligent&Precise Electronics Co.,Ltd.
Address: No.218 Qianwangang Road Qingdao Shangdong CN 266510
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 Qingdao Intelligent&Precise Electronics Co.,Ltd.

Qingdao Intelligent&Precise Electronics Co.,Ltd. holds 22 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:

Assignment history (2)

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

2023-07-11Assigned to "Qingdao Intelligent&Precise Electronics Co.,Ltd."
archived source →
2026-07-17Assigned to "Qingdao Intelligent&Precise Electronics Co.,Ltd."

Nearby in the registry

The prefixes assigned immediately before and after E0:D8:C4:

FAQ

Which company owns MAC address prefix E0:D8:C4?: MAC address prefix E0:D8:C4 is registered to Qingdao Intelligent&Precise Electronics Co.,Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with E0:D8:C4 has a network interface built by Qingdao Intelligent&Precise Electronics Co.,Ltd..
What is the OUI E0:D8:C4?: E0:D8:C4 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Qingdao Intelligent&Precise Electronics Co.,Ltd.. It covers every address from E0:D8:C4:00:00:00 to E0:D8:C4:FF:FF:FF, or 16,777,216 addresses in total. It is also written E0-D8-C4.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in E0:D8:C4:00:00:00 that is E0:D8:C4 — 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 Qingdao Intelligent&Precise Electronics Co.,Ltd. located?: Qingdao Intelligent&Precise Electronics Co.,Ltd. is listed at No.218 Qianwangang Road Qingdao Shangdong CN 266510 in the IEEE OUI registry entry for E0:D8:C4. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does Qingdao Intelligent&Precise Electronics Co.,Ltd. own?: Qingdao Intelligent&Precise Electronics Co.,Ltd. holds 22 OUI prefixes in the IEEE registry, of which E0:D8:C4 is one. A device made by Qingdao Intelligent&Precise Electronics Co.,Ltd. could carry a MAC address from any of them.