MAC address vendor

Afero, Inc. — MAC prefix identifies an IEEE registrant

Primary prefix
90:6F:18
Block
MA-L

Summary

// what this is
Afero is registered to MAC prefix 90:6F:18 in the IEEE OUI database. When a device's MAC address begins with 90:6F:18, that block was registered by Afero — the OUI identifies the maker of the network hardware, which is not always the brand on the device.
// analyst note
The 24-bit prefix leaves 24 suffix bits, allowing 16,777,216 possible suffix values. The Group and Local bits of this literal prefix are both zero; changing either bit yields a different prefix. Possible suffix values are not an actual device or shipment count.
[ 01 ] — Context

About this vendor.

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

A MAC address beginning 90:6F:18 matches an IEEE MA-L assignment registered to Afero, Inc.; the record does not establish a device category or specific product. The prefix identifies the registry entry, not the device’s current owner, deployment, or safety status.

This is a 24-bit prefix, leaving 24 bits for suffix values: 16,777,216 possible values. That is a mathematical address-space count, not a count of devices or shipments. The first-byte Group and Local bits are both zero for this literal prefix. Changing either bit produces a different prefix; those bit roles do not imply that addresses within this fixed prefix vary across those bits.

RFC 7042 explains that MAC identifiers can use an initial OUI or a longer assigned prefix, with remaining bits available beyond that boundary. To identify a captured address, compare its first 24 bits with 90:6F:18; a match supports the registry assignment only. Assignment dates are unavailable in these IEEE CSV records.

Prefix
90:6F:18 (24 bits; MA-L) [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Company
Afero, Inc. [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Prefix
90:6F:18 [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Registry
MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Country
US [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. 90:6F:18MA-L
[ 03 ] — Related

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