MAC address vendor

Advanced Design Technology Pty Ltd — device identity unknown

Primary prefix
14:66:B7
Block
MA-L

Summary

// what this is
Advanced Design Technology is registered to MAC prefix 14:66:B7 in the IEEE OUI database. When a device's MAC address begins with 14:66:B7, that block was registered by Advanced Design Technology — the OUI identifies the maker of the network hardware, which is not always the brand on the device.
// analyst note
A captured match supports only a registry-prefix match. For this 24-bit prefix, the Group and Local bits are both 0; the remaining 24 bits have 16,777,216 possible values, not an observed device or shipment count.
[ 01 ] — Context

About this vendor.

Updated  ·  Confidence: High  ·  2 sources  ·  How this page is checked

A MAC address beginning 14:66:B7 is registered to Advanced Design Technology Pty Ltd; the supplied records do not identify a device type or product that uses it. The IEEE MA-L record lists this single 24-bit prefix. Its address field also indicates Australia, but the assignment alone does not establish where a device is deployed or who currently operates it.

The prefix fixes the first 24 bits, leaving 24 suffix bits, or 16,777,216 possible suffix values. That is a mathematical address-space size, not a count of devices, shipments, or observed traffic. A captured address that matches the prefix supports a registry-prefix match only; it cannot identify a particular product, operating system, current vendor identity, or security state.

The first octet 14 has Group bit 0 and Local bit 0. These bits are fixed for an exact 14:66:B7 prefix match. Changing either bit changes the prefix, rather than describing variation among addresses within this fixed assignment. RFC 7042 explains the Group and Local bit meanings for MAC identifiers.

Prefix
14:66:B7 (MA-L, 24 bits) [Confirmed]
Device or product
Unknown from the supplied records [Unknown]
Country
Australia, indicated by the IEEE record [Confirmed]
Address interpretation
Group bit 0; Local bit 0; 24 suffix bits allow 16,777,216 possible values [Confirmed]
Company
Advanced Design Technology Pty Ltd [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Registry
MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Prefix
14:66:B7 [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Country
Australia [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Device type
Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
Products
Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
Industry
Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
[ 02 ] — OUI prefixes

Assignments by IEEE.

1
// registered prefixes1
  1. 14:66:B7MA-L
[ 03 ] — Related

Keep digging.