macadress

AUMOVIO Systems, Inc.

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix20:AD:56:00:00:00 /24
Vendor address21440 W. Lake Cook Rd. Deer Park IL US 60010
Country🇺🇸  United States
RegisteredJun 16, 2018
Block range20:AD:56:00:00:00– 20:AD:56:FF:FF:FF
Address capacity16,777,216
AdministrationUniversally administered: its prefix comes from a block registered through the IEEE Registration Authority
TransmissionUnicast: addressed to a single device
SourceIEEE Registration Authority

Address capacity is the size of this registered block, not a count of devices actually manufactured or online. Registration identifies the organization holding the block, not a specific device model or unit.

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Ownership timeline

  1. Jun 16, 2018 – Dec 13, 2025 Continental Automotive Systems Inc. name changed
  2. Dec 13, 2025 – present AUMOVIO Systems, Inc.

Example addresses in this block

20:AD:56:00:00:00 20:AD:56:7F:FF:FF 20:AD:56:FF:FF:FF

Where this block sits

AUMOVIO Systems, Inc. holds 6 registered blocks in the IEEE registry, ranking #472 of 33,427 organizations by block count.

Other blocks registered to AUMOVIO Systems, Inc.

00:1E:AE:00:00:00 /24 MA-L 00:54:AF:00:00:00 /24 MA-L 34:22:CF:00:00:00 /24 MA-L 8C:5F:48:00:00:00 /24 MA-L D4:94:FB:00:00:00 /24 MA-L