MAC Address Generator
Generate single or batch random MAC addresses with customizable separators, prefix options, and vendor OUI formatting instantly.
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MAC Address Standards Reference
1. Organizationally Unique Identifier (OUI)
The first 3 octets identify the manufacturer or vendor of the network interface controller, assigned by the IEEE registration authority.
2. Locally Administered & Unicast Bits
The second least significant bit of the first octet indicates whether the address is locally administered ($LAA=1$) or globally unique ($UAA=0$).
What is MAC Address Generator?
Generate single or batch random MAC addresses with customizable separators, prefix options, and vendor OUI formatting instantly.
How to use MAC Address Generator
- Enter or paste the values requested in the input fields.
- Choose any options provided, then run an action button if the tool requires one.
- Review the result and copy or adjust it as needed.
MAC Address Generator features
- Available tool controls: Generate MACs.
- Input and option fields: Delimiter Format:, Quantity:, Custom OUI Prefix:.
Frequently Asked Questions (FAQ)
Common formats include colon-separated (IEEE 802 standard), hyphen-separated (Windows style), dot-separated (Cisco style), and continuous strings.
Yes. You can input your own 3-byte prefix to test hardware filtering, DHCP reservations, or switch port security rules.
Yes. Randomly generated addresses utilize cryptographic-grade browser entropy to prevent collisions during batch generation.