00:1C:5A identifies an Advanced Relay Corporation registry assignment; device type unknown
Summary
- // what this is
- Advanced Relay is registered to MAC prefix
00:1C:5Ain the IEEE OUI database. When a device's MAC address begins with00:1C:5A, that block was registered by Advanced Relay — the OUI identifies the maker of the network hardware, which is not always the brand on the device. - // analyst note
- For this 24-bit prefix, the first-octet Group and Local bits are fixed at zero; changing either bit yields a different prefix. The remaining 24 bits allow 16,777,216 possible suffix values, not a device or shipment count. A prefix match indicates a registry assignment, not a particular device, product, deployment, or security state.
About this vendor.
A MAC address beginning 00:1C:5A matches the IEEE MA-L assignment recorded to Advanced Relay Corporation. The supplied record does not identify a device type or map the prefix to a product, so a prefix match cannot identify a particular device or product.
This is a 24-bit prefix, leaving 24 bits for suffix values: 16,777,216 possible values. That is a mathematical address-space count, not a count of devices or shipments. For this exact prefix, the first-octet Group and Local bits are both zero. A changed value in either bit produces a different prefix; it does not describe variation within this fixed assignment. The match establishes the recorded registry assignment, not actual deployment, traffic prevalence, current vendor identity, or security state.
- Registry match
- Advanced Relay Corporation, MA-L assignment
00:1C:5A[Confirmed] — https://standards-oui.ieee.org/oui/oui.csv - Device category
- Unknown; the supplied evidence does not map a device category to this prefix [Unknown]
- Country
- United States, as indicated by the registry record [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Company
- Advanced Relay Corporation [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Prefix
00:1C:5A[Confirmed] — https://standards-oui.ieee.org/oui/oui.csv- Registry
- MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Country
- United States [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Device type
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv