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MAC Address Lookup
Lookup MAC address vendor informationEnter a MAC address to find vendor information, address type, and other details.
Input
📖 Usage Guide
Enter MAC Address
Input a MAC address in any supported format (colon, hyphen, dot, or no separator)
View Results
Get detailed information including vendor, address type, and local/global scope
Copy Formats
Copy the MAC address in different formats for various use cases
Features
🔍Comprehensive MAC address lookup with vendor identification
🏢Support for multiple input and output formats
📊Detailed address type and scope information
🔄Real-time format conversion and validation
⚡Fast lookup with local OUI database
Technical Introduction
Core Concept
MAC address lookup involves querying the OUI (Organizationally Unique Identifier) database to identify the manufacturer of a network device. The first 3 bytes (24 bits) of a MAC address represent the OUI, which is assigned by IEEE to registered organizations.Best Practices
Use official IEEE OUI Registry for production applications. Consider privacy implications when querying MAC addresses. Validate input formats before processing. Cache results for frequently queried addresses.Standards & Documentation
IEEE OUI Registry
Official OUI registry, providing the latest manufacturer information
Official OUI registry, providing the latest manufacturer information
Wikipedia - MAC Address
Detailed technical description and historical background of MAC addresses
Detailed technical description and historical background of MAC addresses
RFC 7042
IANA Ethernet address block allocation standard
IANA Ethernet address block allocation standard