Which company owns MAC address prefix E0:03:70?

MAC address prefix E0:03:70 is registered to ShenZhen Continental Wireless Technology Co., Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with E0:03:70 has a network interface built by ShenZhen Continental Wireless Technology Co., Ltd..

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in E0:03:70:00:00:00 that is E0:03:70 — 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.

ShenZhen Continental Wireless Technology Co., Ltd.

MAC address prefix E0:03:70 is registered to ShenZhen Continental Wireless Technology Co., Ltd. in the IEEE OUI registry. Any device whose MAC address begins with E0:03:70 has a network interface built by ShenZhen Continental Wireless 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 E0:03:70:00:00:00 to E0:03:70:FF:FF:FF.

OUI prefix: E0:03:70
Hyphen form: E0-03-70
MAC range: E0:03:70:00:00:00 – E0:03:70:FF:FF:FF
Addresses in block: 16,777,216
Organization: ShenZhen Continental Wireless Technology Co., Ltd.
Address: North 23F, Dongfang Technology Building, Shenzhen Guangdong CN 518057
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 "ShenZhen Continental Wireless Technology Co., Ltd."
archived source →
2026-07-17Assigned to "ShenZhen Continental Wireless Technology Co., Ltd."

Nearby in the registry

The prefixes assigned immediately before and after E0:03:70:

FAQ

Which company owns MAC address prefix E0:03:70?: MAC address prefix E0:03:70 is registered to ShenZhen Continental Wireless Technology Co., Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with E0:03:70 has a network interface built by ShenZhen Continental Wireless Technology Co., Ltd..
What is the OUI E0:03:70?: E0:03:70 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to ShenZhen Continental Wireless Technology Co., Ltd.. It covers every address from E0:03:70:00:00:00 to E0:03:70:FF:FF:FF, or 16,777,216 addresses in total. It is also written E0-03-70.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in E0:03:70:00:00:00 that is E0:03:70 — 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 ShenZhen Continental Wireless Technology Co., Ltd. located?: ShenZhen Continental Wireless Technology Co., Ltd. is listed at North 23F, Dongfang Technology Building, Shenzhen Guangdong CN 518057 in the IEEE OUI registry entry for E0:03:70. This is the address the organization registered with the IEEE, which may differ from its current operating address.