Look up DNS records for any domain. View A, AAAA, MX, TXT, NS, and CNAME records using public DNS servers.
MAC Address Lookup
Identify the manufacturer and vendor from any MAC address using a comprehensive OUI database.
Free · No signup
MAC Address Lookup
Supports formats: 00:1A:2B:3C:4D:5E, 00-1A-2B-3C-4D-5E, 001A.2B3C.4D5E, or 001A2B3C4D5E
MAC Address Format
OUI (First 3 bytes): Identifies the manufacturer
NIC (Last 3 bytes): Device-specific identifier
Address Types
Bit 0 of 1st byte: 0 = Unicast, 1 = Multicast
Bit 1 of 1st byte: 0 = Universal, 1 = Local
100% Client-Side: This tool uses a built-in OUI database with 372 entries from major manufacturers. All lookups are performed locally in your browser - no data is sent to any server.
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