Pi-Coral MAC prefixes: device identity Unknown
Summary
- // what this is
- Pi-Coral is registered to MAC prefix
28:E4:76and 1 more in the IEEE OUI database. When a device's MAC address begins with28:E4:76, that block was registered by Pi-Coral — the OUI identifies the maker of the network hardware, which is not always the brand on the device. - // analyst note
- The IEEE CSV lists Pi-Coral and Pi-Coral Inc as separate MA-L organization names; these records alone do not establish a corporate relationship or product mapping. For each exact 24-bit prefix, the first-byte Group and Local bits are 0. Each leaves 24 suffix bits, or 16,777,216 possible values; this is not an observed device or shipment count. A match indicates registry assignment only.
About this vendor.
A MAC address beginning with 28:E4:76 or AC:50:36 is assigned to Pi-Coral or Pi-Coral Inc in the IEEE MA-L registry; the available evidence does not identify a device, vendor product, or product category for either prefix. Both assignments are listed separately, so they do not establish a shared legal entity or product relationship.
Each is a 24-bit prefix, leaving 24 bits for suffix values: 16,777,216 possible suffixes per prefix. This is a mathematical address space, not a count of devices or shipments. A match shows that the address falls under the listed registry assignment; it does not identify a specific device, operating system, current legal identity, or security state.
For both exact prefixes, the first-byte Group and Local bits are zero. These bits are fixed for the literal prefixes shown. Setting either bit changes the prefix and therefore no longer matches that exact assignment. RFC 7042 explains these bit meanings and how EUI-48 identifiers can use 24-bit or longer initial prefixes.
- Device identification
- Unknown; the IEEE records assign these prefixes to Pi-Coral and Pi-Coral Inc but do not specify devices or products. [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Company
- Pi-Coral; Pi-Coral Inc is a separate listed organization name. [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Registry
- MA-L; two 24-bit prefixes are listed. [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Address interpretation
- Group bit 0 and Local bit 0 in the first byte of each exact prefix. [Confirmed] — https://www.rfc-editor.org/rfc/rfc7042.txt
- Company
- Pi-Coral; separate record for Pi-Coral Inc [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Registry
- MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Device type
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Country
- US is indicated in both registry records [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv