ALAMAR ELECTRONICS — MAC prefix identifies a registry assignment
Summary
- // what this is
- Alamar Electronics is registered to MAC prefix
00:20:E1in the IEEE OUI database. When a device's MAC address begins with00:20:E1, that block was registered by Alamar Electronics — the OUI identifies the maker of the network hardware, which is not always the brand on the device. - // analyst note
- An exact match identifies the IEEE registry assignment, not a particular device or deployment. The 24-bit prefix leaves 24 suffix bits, with 16,777,216 possible values. For this exact prefix, the first-byte Group and Local bits are both zero; changing either bit creates a different prefix.
About this vendor.
A MAC address beginning 00:20:E1 matches an IEEE MA-L assignment registered to ALAMAR ELECTRONICS; the record does not identify a particular device or product. The supplied evidence contains no retrieved company product, industry, or website information, so the vendor’s business and catalog cannot be described here.
00:20:E1 is a 24-bit prefix, leaving 24 bits for suffix values—16,777,216 possible values. This is a mathematical address-space count, not a count of devices made, deployed, or shipped. IEEE’s record lists the organization name and an address in the United States; it does not establish current corporate identity or deployment.
In this prefix’s first byte, 00, the Group bit and Local bit are both zero. RFC 7042 describes the Group bit as indicating group addressing and the Local bit as indicating local administration. Those bit values are fixed for an exact 00:20:E1 prefix match; changing either bit produces a different prefix. A captured matching address therefore supports identifying the registry assignment and matching boundary, not the device, operating system, owner, or security state.
- Vendor
- ALAMAR ELECTRONICS — the registered organization name for this MA-L prefix.
- Device class
- Unknown; no supplied source maps a device category to this exact prefix.
- Matching prefix
00:20:E1(24 bits); a match fixes the first 24 bits.- Suffix space
- 24 remaining bits, or 16,777,216 possible values; this is not a device or shipment count.
- Address bits
- Group bit 0 and Local bit 0 in first byte
00; changing either bit changes the prefix. - Assignment count
- 1 IEEE assignment in the supplied projection.
- Company
- ALAMAR ELECTRONICS [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Country
- US [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Registry
- MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Prefix
00:20:E1[Confirmed] — https://standards-oui.ieee.org/oui/oui.csv- Assignment date
- Assignment dates are unavailable in these IEEE CSV records. [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Industry
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Notable products
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Website
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Device types
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv