MAC Address Lookup
Paste a MAC to format it and look up a bundled OUI vendor.
MAC address lookup and generator
Format a MAC and look up a bundled OUI vendor, or generate random unicast addresses. For IP notation see the IP converter.
MAC address lookup FAQ
- Is the vendor list complete?
- No. It is a snapshot of popular OUIs bundled in this page. Unknown prefixes show “Unknown vendor (not in this browser list)”. We do not fetch IEEE at runtime.
- What is the locally administered bit?
- The second-least-significant bit of the first octet. When set, the address is locally assigned (common for random MAC / VMs) rather than burned in by a vendor.
- Are generated MACs private?
- Toolshelf generates them in your browser. Random MACs are for tests and documentation, not for changing your NIC.
Related tools
Continue with related browser-based tools on Toolshelf.
- IP Address Converter & Analyzer — Online IP address converter and analyzer.
- IP Address & CIDR Calculator — Online IP calculator, CIDR calculator, and subnet calculator.
- UUID Generator — Online UUID generator and validator.
- User-Agent Parser & Analyzer — Online User-Agent Parser and Analyzer.
- JWT Decoder & Inspector — Online JWT decoder and inspector.
- Chmod Calculator — Chmod calculator online.
- Docker Run to Compose — Docker run to Compose converter.
- HTTP Status Codes — HTTP status codes lookup online, plus MIME types and a Basic Auth header builder.
Examples
Colon, hyphen, Cisco
00:1A:2B:3C:4D:5E, 00-1A-2B-3C-4D-5E, and 001A.2B3C.4D5E parse to the same canonical MAC.
Limitations
- Vendor names are a bundled subset, not live IEEE.
- Generate count is 1–50.
What would you like to do next?
Continue working with the next step in this workflow. Recently used tools in this set are listed first.
- IP Address Converter & Analyzer — Online IP address converter and analyzer.
- IP Address & CIDR Calculator — Online IP calculator, CIDR calculator, and subnet calculator.
- UUID Generator — Online UUID generator and validator.
- User-Agent Parser & Analyzer — Online User-Agent Parser and Analyzer.
You may also need
Continue with related browser-based tools on Toolshelf.
- IP Address Converter & Analyzer — Online IP address converter and analyzer.
- IP Address & CIDR Calculator — Online IP calculator, CIDR calculator, and subnet calculator.
- UUID Generator — Online UUID generator and validator.
- User-Agent Parser & Analyzer — Online User-Agent Parser and Analyzer.
- JWT Decoder & Inspector — Online JWT decoder and inspector.
- Chmod Calculator — Chmod calculator online.
- Docker Run to Compose — Docker run to Compose converter.
- HTTP Status Codes — HTTP status codes lookup online, plus MIME types and a Basic Auth header builder.