
ID badges and other devices that are formatted with the 26-bit technology are programmed with two numbers, the facility code and the serial number. Both of these numbers are verified by the access control system before any access is permitted.
The Facility Code
The facility code number will be anywhere from 0 to 255 when dealing with the 26-bit format. This number will be the same on all employee ID badges because it indicates a specific building or facility. For organizations with multiple locations, some systems will allow for ID badges to contain more than one facility code.
The Serial Number
Unlike the facility code, the serial number will be different for each employee because it represents the individual user. This number is more specifically utilized in terms of access control and allows for different levels of access for each number. For instance; you can designate one serial number to have permanent access while designating another serial number to only have access during operating hours or only from Monday through Friday. Additionally, some access control systems have the capability of keeping attendance records.
If you would like more information about 26-bit proximity formats or any other technology ID badges, give us a call! One of our ID professionals would love to help you find the perfect solution for you organization! Call (866) 610-4308








