How to Change Your MAC Address on Any Device
Your MAC address (Media Access Control address) is a unique identifier burned into your network adapter at the factory. It's a 12-character hexadecimal string — something like A4:C3:F0:85:7D:2B — that operates at the hardware layer of your network. Routers, switches, and access points use it to identify devices on a local network, independently of your IP address.
Changing it is called MAC address spoofing, and it's a legitimate, widely used technique for privacy, network testing, and bypassing certain access controls. Here's how it works across different platforms — and what determines whether a change actually sticks.
Why People Change Their MAC Address 🔒
Before getting into the how, it's worth understanding the why — because the reason shapes which method makes sense for you.
Common use cases include:
- Privacy on public Wi-Fi — Hotspots, retailers, and venues can track your device across visits using your MAC address. Spoofing it disrupts that tracking.
- Bypassing MAC filtering — Some networks only allow registered devices. A new MAC can grant access if you have a permitted address to clone.
- Network testing and development — IT professionals spoof MACs to simulate multiple devices or test DHCP behavior.
- ISP equipment compatibility — Some ISPs associate your account with your router's MAC. Cloning your old router's address onto a new one avoids a service call.
How MAC Address Spoofing Actually Works
Your physical MAC address is stored in your network adapter's firmware — it doesn't change. What spoofing does is tell your operating system to report a different address to the network. The underlying hardware address (sometimes called the burned-in address or BIA) remains untouched.
This distinction matters: a spoofed MAC address is typically session-based or software-level. On many systems, it resets after a reboot unless you configure it to persist.
Changing Your MAC Address on Windows
On Windows 10 and 11, you can change your MAC address through Device Manager without third-party software.
Steps:
- Open Device Manager → expand Network Adapters
- Right-click your adapter → Properties
- Go to the Advanced tab
- Find Locally Administered Address or Network Address in the property list
- Select Value, enter a 12-character hex string (no dashes or colons)
- Click OK and reconnect
Not all network adapter drivers expose this property. If the option doesn't appear, your driver may not support it natively — in which case a tool like Technitium MAC Address Changer (a free utility) reads and writes to the registry directly.
⚠️ The first character of your MAC must have an even second digit (0, 2, 4, 6, 8, A, C, or E) to be a valid locally administered address.
Changing Your MAC Address on macOS
macOS doesn't offer a GUI option, but the Terminal method is reliable.
To spoof temporarily (until reboot):