OUI
LOOKUP
MAC Address OUI Vendor Decoder — Offline
v1.0 // Hylas Security
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MAC Address or OUI
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Accepts any format: colon, hyphen, dot, or plain hex. OUI is first 3 bytes (6 hex chars).
// Batch Lookup — Paste Multiple MACs
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OUI database entries:
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| Source: IEEE public OUI registry (offline snapshot) | Last updated: 2025-Q1