MAC address vendor

ADVANCED COMPUTER COMM. — MAC prefix identifies registry assignee only

Primary prefix
08:00:03
Block
MA-L

Summary

// what this is
Advanced Computer COMM is registered to MAC prefix 08:00:03 in the IEEE OUI database. When a device's MAC address begins with 08:00:03, that block was registered by Advanced Computer COMM — the OUI identifies the maker of the network hardware, which is not always the brand on the device.
// analyst note
A matching prefix identifies the IEEE registry assignment only; it does not establish a specific device, current vendor identity, deployment, or security state. RFC 7042 guidance applies to the Group and Local bits.
[ 01 ] — Context

About this vendor.

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

A MAC address beginning 08:00:03 matches an IEEE MA-L assignment to ADVANCED COMPUTER COMM.; the supplied records do not identify a device, product, or operating vendor for that address.

The assignment covers the first 24 bits of a 48-bit MAC identifier, leaving 24 bits after the prefix. Those remaining bits allow 16,777,216 possible suffix values, not a count of devices, shipments, or addresses observed in use. A matching prefix establishes registry assignment only.

For 08:00:03, the first octet is 08 (binary 00001000). Its Group bit and Local bit are both zero. An exact literal match therefore has those bits fixed; changing either bit produces a different prefix and is not a match for this assignment.

RFC 7042 describes MAC identifiers as an initial OUI or longer assigned prefix followed by the remaining identifier bits, and explains the Group and Local bits. The supplied IEEE CSV record shows no assignment date.

Assignment
08:00:03 (MA-L; 24-bit prefix) [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Device or product
Unknown; no device category or product mapping is supplied for this prefix [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
Country
US appears in the registry record [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
[ 02 ] — OUI prefixes

Assignments by IEEE.

1
// registered prefixes1
  1. 08:00:03MA-L
[ 03 ] — Related

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