MAC address vendor

Acomz Networks Corp. MAC prefix: vendor identification only

Primary prefix
00:03:71
Block
MA-L

Summary

// what this is
Acomz Networks is registered to MAC prefix 00:03:71 in the IEEE OUI database. When a device's MAC address begins with 00:03:71, that block was registered by Acomz Networks — the OUI identifies the maker of the network hardware, which is not always the brand on the device.
// analyst note
The first-octet Group and Local bits are both 0 for this exact prefix. A 24-bit prefix leaves 24 suffix bits, allowing 16,777,216 possible suffix values; this is an address-space size, not a device count. An exact prefix match identifies the registry assignment and does not establish deployment or a specific product.
[ 01 ] — Context

About this vendor.

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

A MAC address beginning 00:03:71 matches an IEEE MA-L assignment to Acomz Networks Corp.; the record does not identify a device category or product using this prefix.

The 24-bit prefix leaves 24 bits, or 16,777,216 possible suffix values, for forming 48-bit identifiers. That is a mathematical address-space count, not a count of devices, shipments, or observed traffic. A match establishes the registered prefix only; it does not establish a device’s operating system, present owner, deployment, or safety.

In 00:03:71, the first octet has Group bit 0 and Local bit 0. RFC 7042 states that OUIs and longer MAC prefixes are assigned with the Local bit zero and Group bit unspecified. The assignment identifies a registered prefix; it does not establish that any address using it is deployed.

Device identification
Unknown; the registry record does not map a device category to this prefix. [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
Country
South Korea (KR in the registry address). [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
[ 02 ] — OUI prefixes

Assignments by IEEE.

1
// registered prefixes1
  1. 00:03:71MA-L
[ 03 ] — Related

Keep digging.