MAC address vendor

Vanderbilt International (SWE) AB: MAC Prefix Identification

Primary prefix
00:23:41
Block
MA-L

Summary

// what this is
Vanderbilt International is registered to MAC prefix 00:23:41 and 1 more in the IEEE OUI database. When a device's MAC address begins with 00:23:41, that block was registered by Vanderbilt International — the OUI identifies the maker of the network hardware, which is not always the brand on the device.
// analyst note
Both prefixes are 24 bits with 24 suffix bits, allowing 16,777,216 possible suffix values per prefix; this is not a device or shipment count. For each exact prefix, the first-byte Group and Local bits are fixed at 0. Changing either bit yields a different prefix; the assignment does not describe variation within these fixed prefixes. A match indicates the registry assignment, not a particular device or security state.
[ 01 ] — Context

About this vendor.

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

A MAC address beginning with 00:23:41 or 00:05:EE is registered to Vanderbilt International (SWE) AB; the supplied records do not identify a device type for either prefix. Both are MA-L assignments. The registry match identifies the assignment holder, not a particular device, product, operating system, present-day vendor identity, or security status.

Each prefix is 24 bits, leaving 24 bits for suffix values: 16,777,216 possible suffixes per prefix. These are possible address values, not a count of devices or shipments. In both prefixes the first-byte Group bit and Local bit are zero. Under RFC 7042, changing either bit changes the prefix; these fixed assignments do not describe the addresses obtained by varying those bits.

Assigned prefixes
00:23:41 and 00:05:EE [Confirmed]
Company
Vanderbilt International (SWE) AB [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Registry
MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Prefixes
00:23:41, 00:05:EE [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Device types
Unknown [Unknown]
Country
Sweden [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Assignment dates
Assignment dates are unavailable in these IEEE CSV records. [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
[ 02 ] — OUI prefixes

Assignments by IEEE.

2
// registered prefixes2
  1. 00:23:41MA-L
  2. 00:05:EEMA-L
[ 03 ] — Related

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