MAC Address Lookup
Identify vendor OUI prefixes, manufacturer details, hardware interface traits, and address formatting instantly.
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OUI Identification Reference
1. 24-bit OUI Blocks
The original IEEE assignment mechanism where the first 3 bytes uniquely identify a major hardware manufacturer.
2. Extended Registry Blocks
Due to exhaustion, IEEE introduced MA-L, MA-M, and MA-S blocks, expanding flexibility for device manufacturers worldwide.
Frequently Asked Questions (FAQ)
You can enter standard colon-separated (`00:11:22`), hyphen-separated (`00-11-22`), period-separated (`0011.2233`), continuous hex strings, or even search by vendor company name.
No. Common vendor mappings and algorithmic checks are processed entirely client-side for immediate performance.
If the second least significant bit of the first octet is set to 1, the address is assigned manually by an administrator rather than the hardware vendor.