Chongqing Zhouhai Intelligent Technology Co., Ltd
MAC address prefix 04:DA:28 is registered to Chongqing Zhouhai Intelligent Technology Co., Ltd in the IEEE OUI registry. Any device whose MAC address begins with 04:DA:28 has a network interface built by Chongqing Zhouhai Intelligent 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 04:DA:28:00:00:00 to 04:DA:28:FF:FF:FF.
- OUI prefix
- 04:DA:28
- Hyphen form
- 04-DA-28
- MAC range
- 04:DA:28:00:00:00 – 04:DA:28:FF:FF:FF
- Addresses in block
- 16,777,216
- Organization
- Chongqing Zhouhai Intelligent Technology Co., Ltd
- Address
- 3rd Floor, Building A, ICC Industrial Park, Kaicheng Second Road, Hangcheng Street, Baoan District, Shenzhen City shenzhen CN 518110
- 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.
- 2023-07-11Assigned to "Chongqing Zhouhai Intelligent Technology Co., Ltd"archived source →
- 2026-07-17Assigned to "Chongqing Zhouhai Intelligent Technology Co., Ltd"
Nearby in the registry
The prefixes assigned immediately before and after 04:DA:28:
- GD Midea Air-Conditioning Equipment Co.,Ltd.04:D6:F4
- Y&H E&C Co.,LTD.04:D7:83
- New H3C Technologies Co., Ltd04:D7:A5
- Occuspace04:D9:21
- Hon Hai Precision Industry Co., Ltd.04:D9:C8
- ASUSTek COMPUTER INC.04:D9:F5
- Cisco Systems, Inc04:DA:D2
- Apple, Inc.04:DB:56
- Suntech International Ltd.04:DB:8A
- GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP.,LTD04:DB:D9
- Velocytech04:DD:4C
- Rockport Networks Inc04:DE:DB
FAQ
- Which company owns MAC address prefix 04:DA:28?
- MAC address prefix 04:DA:28 is registered to Chongqing Zhouhai Intelligent Technology Co., Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 04:DA:28 has a network interface built by Chongqing Zhouhai Intelligent Technology Co., Ltd.
- What is the OUI 04:DA:28?
- 04:DA:28 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Chongqing Zhouhai Intelligent Technology Co., Ltd. It covers every address from 04:DA:28:00:00:00 to 04:DA:28:FF:FF:FF, or 16,777,216 addresses in total. It is also written 04-DA-28.
- How do I find the manufacturer of a MAC address?
- Take the first three octets of the address — in 04:DA:28:00:00:00 that is 04:DA:28 — 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 Chongqing Zhouhai Intelligent Technology Co., Ltd located?
- Chongqing Zhouhai Intelligent Technology Co., Ltd is listed at 3rd Floor, Building A, ICC Industrial Park, Kaicheng Second Road, Hangcheng Street, Baoan District, Shenzhen City shenzhen CN 518110 in the IEEE OUI registry entry for 04:DA:28. This is the address the organization registered with the IEEE, which may differ from its current operating address.