Who owns MAC prefix AC64DDB?

AC64DDB is registered to Groupe Citypassenger Inc in the IEEE MA-M registry.

What devices use AC64DDB?

Any network device with a MAC address starting AC:64:DD:B was manufactured by or for Groupe Citypassenger Inc.

MA-M · OUI prefix

Groupe Citypassenger Inc

Any MAC address starting AC:64:DD:B is registered to Groupe Citypassenger Inc in CA.

OUI prefix	AC64DDB
Vendor	Groupe Citypassenger Inc
Registry	MA-M (28-bit, medium block)
Country	CA
Example MAC	AC:64:DD:B:00:00:00

What this means

The IEEE assigned the MA-M block AC64DDB to Groupe Citypassenger Inc. Every network interface they manufacture under this block has a MAC address beginning with these digits, followed by a unique per-device identifier. If a device on your network shows a MAC starting AC:64:DD:B, it is Groupe Citypassenger Inc hardware.

Other Groupe Citypassenger Inc prefixes

Groupe Citypassenger Inc holds 2 registered blocks in total.

70B3D5E7E

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