MAC address vendor

RAD Data Communications, Ltd. MAC Prefixes: Vendor Known, Device Unknown

Primary prefix
18:06:F5
Block
MA-L

Summary

// what this is
RAD Data Communications is registered to MAC prefix 18:06:F5 and 1 more in the IEEE OUI database. When a device's MAC address begins with 18:06:F5, that block was registered by RAD Data Communications — the OUI identifies the maker of the network hardware, which is not always the brand on the device.
// analyst note
Each exact prefix is 24 bits; the first octet has Group bit 0 and Local bit 0. Each has 24 suffix bits and 16,777,216 possible suffix values, not an observed device count. A prefix match indicates a registry assignment and does not identify a particular device or establish deployment or security state.
[ 01 ] — Context

About this vendor.

Updated  ·  Confidence: High  ·  3 sources  ·  How this page is checked

A MAC address beginning with 18:06:F5 or 00:20:D2 matches an IEEE MA-L assignment to RAD Data Communications, Ltd.; the assignment does not identify a device type. The first-party RAD page says the company was co-founded in 1981 and describes RAD as the first RAD Group company. It characterizes the group as an association of Israeli companies offering data communications solutions.

Both prefixes are 24 bits long, so each match covers the first three octets and leaves 24 suffix bits. Each suffix has 16,777,216 possible values; that is a mathematical address space, not a device or shipment count. For both exact prefixes, the first octet has Group bit 0 and Local bit 0. As RFC 7042 explains, those bits have special MAC-address significance; changing either bit produces a different prefix.

A match indicates the registry assignment, not a particular product, deployment, traffic prevalence, or security state.

Device type
Unknown; the supplied evidence does not map a device category to either prefix. [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
Company
RAD Data Communications, Ltd. [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Prefixes
18:06:F5 and 00:20:D2 [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Registry
MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Industry
Data communications [Likely] — https://www.rad.com/rad-founders/
Company history
RAD was co-founded in 1981 and described as the first RAD Group company. [Confirmed] — https://www.rad.com/rad-founders/
Device types
Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
Notable products
Unknown [Unknown] — https://www.rad.com/rad-founders/
Country
Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
Website
https://www.rad.com/rad-founders/ [Confirmed] — https://www.rad.com/rad-founders/
Assignment dates
Assignment dates are unavailable in these IEEE CSV records. [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
[ 02 ] — OUI prefixes

Assignments by IEEE.

2
// registered prefixes2
  1. 18:06:F5MA-L
  2. 00:20:D2MA-L
[ 03 ] — Related

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