MAC address vendor

ACM Systems MAC prefix 00:0C:60 — registry assignment

Primary prefix
00:0C:60
Block
MA-L

Summary

// what this is
ACM Systems is registered to MAC prefix 00:0C:60 in the IEEE OUI database. When a device's MAC address begins with 00:0C:60, that block was registered by ACM Systems — the OUI identifies the maker of the network hardware, which is not always the brand on the device.
// analyst note
The 24-bit prefix fixes the first three octets; 24 suffix bits allow 16,777,216 possible suffix values, not an observed device or shipment count. In 00, the Group bit (01) and Local bit (02) are zero. Setting either bit changes the first octet and no longer matches this exact prefix. A prefix match identifies a registry assignment only, not a particular device or its operator.
[ 01 ] — Context

About this vendor.

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

A MAC address beginning 00:0C:60 matches an IEEE MA-L assignment registered to ACM Systems; the prefix alone does not identify a device or prove that ACM Systems made or operates it. The supplied IEEE record indicates the United States, but provides no assignment date or product information.

This 24-bit prefix fixes the first three octets of a 48-bit MAC address. The remaining 24 bits allow 16,777,216 possible suffix values; that is an address-space count, not a count of devices or shipments. A matching address establishes only that its first 24 bits equal the assigned prefix.

For this literal prefix, the first octet is 00: its Group bit (bit value 01) and Local bit (bit value 02) are both zero. Turning either bit on changes the prefix, so addresses with those bits set do not match this exact assignment. RFC 7042 describes the significance of these bits and the structure of MAC prefixes.

Registry assignment
ACM Systems, MA-L, prefix 00:0C:60 [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Device category
Unknown; the supplied evidence does not map a device category to this exact prefix [Unknown]
Assignment date
Unavailable in the supplied IEEE CSV record [Unknown]
Company
ACM Systems [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Registry
MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Prefixes
00:0C:60 [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Country
United States [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Device types
Unknown [Unknown]
Notable products
Unknown [Unknown]
Industry
Unknown [Unknown]
Website
Unknown [Unknown]
Organization status
Unknown [Unknown]
Related vendors
Unknown [Unknown]
Historic prefix
Unknown [Unknown]
Assignment date
Assignment dates are unavailable in these IEEE CSV records. [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
[ 02 ] — OUI prefixes

Assignments by IEEE.

1
// registered prefixes1
  1. 00:0C:60MA-L
[ 03 ] — Related

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