26 Bit can utilize a Facility Code between 0 - 255.

34 Bit can utilize a Facility Code between 0 = 65,535.

The 125 kHz RapidPROX® Proximity Tags  (AWID) provides the convenience of AWID’s proximity technology in a small disk-shaped transponder. Simply attach the adhesive-backed Tag to any nonmetallic card . This tag easily attaches to all nonmetallic materials, including PVC cards.  Easily and cost-effectively turn a plastic ID badge or contact smart chip card into a proximity credential! Add proximity access control capability to users' cell phones, PDAs and other similar nonmetallic devices. 1" Diameter (25.4mm).