MAC address vendor

Nixdorf Computer Corp. (Defunct)

Primary prefix
00:E6:D3
Block
MA-L
Status
Ceased operations

Summary

// what this is
Nixdorf Computer is registered to MAC prefix 00:E6:D3 and 1 more in the IEEE OUI database. When a device's MAC address begins with 00:E6:D3, that block was registered by Nixdorf Computer — the OUI identifies the maker of the network hardware, which is not always the brand on the device. Nixdorf Computer has ceased operations, but the registration remains on record with IEEE.
// analyst note
The registrant is a defunct 1990s-era entity; no live official website exists, so no current operator or product line can be confirmed. Not listed in the CISA Known Exploited Vulnerabilities Catalog (catalog 2026.09.23, 1721 entries).
[ 01 ] — Context

About this vendor.

Updated  ·  Confidence: Likely  ·  6 sources  ·  How this page is checked

A MAC address beginning with 00:E6:D3 or 02:E6:D3 identifies hardware registered to NIXDORF COMPUTER CORP., the US subsidiary of the West German computer company Nixdorf Computer AG.

The registrant is a defunct entity that dissolved in 1990. It merged with Siemens to form Siemens Nixdorf Informationssysteme AG, which later split into Fujitsu Siemens Computers and Wincor Nixdorf. The company operated in the computer industry, focusing on mainframe and banking/point-of-sale systems.

No live official website exists for this defunct entity, so no current operator or product line can be confirmed. The specific device types associated with these prefixes are not established in the available sources.

The registrant is not listed in the CISA Known Exploited Vulnerabilities Catalog (catalog 2026.09.23, 1721 entries). IEEE publishes no registration or assignment date for these prefixes, and no third-party lookup consulted carried one either.

Operator
Nixdorf Computer AG (West German computer company; the OUI registrant NIXDORF COMPUTER CORP. is its US subsidiary) [Likely] (https://en.wikipedia.org/wiki/Nixdorf_Computer)
Website
Unknown (defunct entity; no live official website exists) [Confirmed] (https://en.wikipedia.org/wiki/Nixdorf_Computer)
Security context
Not listed in the CISA Known Exploited Vulnerabilities Catalog (catalog 2026.09.23, 1721 entries) [Confirmed] (data/kev-snapshot.json)
Industry
Computer (mainframe and banking/point-of-sale systems) [Likely] (https://en.wikipedia.org/wiki/Nixdorf_Computer)
Org status
dissolved (defunct 1990; merged with Siemens to form Siemens Nixdorf Informationssysteme AG, later split into Fujitsu Siemens Computers and Wincor Nixdorf) [Likely] (https://en.wikipedia.org/wiki/Siemens_Nixdorf)
Device types
Unknown [Unknown] (no retrieved page attributed specific hardware types to this registrant)
Notable products
Nixdorf Series 800 Client Accounting Service System CLASS [Likely] (https://www.computerhistory.org/brochures/m-p/nixdorf-computer-corporation/)
Related vendors
Siemens Nixdorf Informationssysteme AG, Wincor Nixdorf, Fujitsu Siemens Computers [Likely] (https://en.wikipedia.org/wiki/Siemens_Nixdorf)
Historic prefix
Unknown [Unknown] (no retrieved page attributed a former prefix to this registrant)
Special note
The registrant is a defunct 1990s-era entity; no live official website exists, so no current operator or product line can be confirmed [Likely] (https://en.wikipedia.org/wiki/Nixdorf_Computer)
[ 02 ] — OUI prefixes

Assignments by IEEE.

2
// registered prefixes2
  1. 00:E6:D3MA-L
  2. 02:E6:D3MA-L
[ 03 ] — Related

Keep digging.