MAC address vendor

ADVANCED CONTROL SYSTEMS, INC. — Device identity unknown

Primary prefix
00:10:66
Block
MA-L

Summary

// what this is
Advanced Control Systems is registered to MAC prefix 00:10:66 in the IEEE OUI database. When a device's MAC address begins with 00:10:66, that block was registered by Advanced Control Systems — the OUI identifies the maker of the network hardware, which is not always the brand on the device.
// analyst note
The exact 24-bit prefix fixes the first byte as 00, with Group bit 0 and Local bit 0. It matches the first three octets; the remaining 24 bits permit 16,777,216 suffix values. This possible address space does not indicate device or shipment count. A prefix match identifies the registry assignment only.
[ 01 ] — Context

About this vendor.

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

A MAC address beginning 00:10:66 is registered to ADVANCED CONTROL SYSTEMS, INC.; the supplied records do not identify a device category or product for this prefix. The assignment identifies a registry holder, not a particular device, deployment, or current vendor identity.

This MA-L prefix covers the first 24 bits, or three octets, of a 48-bit MAC address. The remaining 24 bits allow 16,777,216 possible suffix values; that is a range of possible address values, not a device or shipment count.

For 00:10:66, the first byte is 00: its Group bit (bit value 01) and Local bit (bit value 02) are both zero. These bits are fixed for an exact prefix match. Changing either bit changes the prefix. A captured match establishes only that the address begins with this registered 24-bit value.

Prefix
00:10:66 (MA-L, 24 bits) [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Company
ADVANCED CONTROL SYSTEMS, INC. [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Registry
MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Prefix
00:10:66 [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
[ 02 ] — OUI prefixes

Assignments by IEEE.

1
// registered prefixes1
  1. 00:10:66MA-L
[ 03 ] — Related

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