what is a facility code
This number is usually printed on the backside of the keyfob or card. The range of this number is dictated by the format being used (e.g. 16 bits for a 26-bit card format). 4. The facility code. This number is not printed on the tag but can be obtained from decoding the wiegand data stream from the card reader. The range of this number is dictated by the format being used (e.g. 8 bits for a 26-bit card format).