MAC Address OUI Lookup Tool
Enter any MAC address or OUI prefix to verify hardware manufacturer compliance against the NDAA Section 889 prohibited entities list. Results are based on IEEE OUI prefix database cross-referenced with the NDAAz compliance database.
NDAA OUI Compliance Lookup
Enter MAC address or OUI prefix (e.g. 5C:34:5B or 5C:34:5B:xx:xx:xx)
Results based on NDAAz OUI database. For devices not found, perform physical chipset inspection or contact NDAAz for assessment.
How OUI Lookup Works
The first three octets of a MAC address (the OUI — Organizationally Unique Identifier) identify the hardware manufacturer. IEEE assigns OUI blocks to manufacturers. By cross-referencing the OUI against the NDAA Section 889 prohibited entity list, field technicians can identify banned hardware even when the outer label has been changed.
Known Banned OUI Prefixes
| OUI Prefix | Manufacturer | Status |
|---|---|---|
| 5C:34:5B | Hikvision | BANNED |
| 64:DB:8B | Hikvision | BANNED |
| 80:F5:AE | Hikvision | BANNED |
| C8:A7:02 | Hikvision | BANNED |
| 4C:11:BF | Dahua | BANNED |
| E0:50:8B | Dahua | BANNED |
| A4:14:37 | Huawei | BANNED |
| E8:CD:2D | Huawei | BANNED |
| 54:AB:3A | Huawei (HiSilicon) | BANNED |
| 00:25:9C | Cisco (Compliant) | COMPLIANT |
| 00:1A:A0 | Axis Communications (Compliant) | COMPLIANT |