Hello LarryL,
There is no magic number that you can use to always get the AO calibration numbers. The EEPROM in organized in a way that only some information is at a static address that never changes. Other pieces of information, such as AO calibration can be at varying offsets.
Please read the entire EEPROM section of the x series manual to get an understanding of the layout. Then you can use the procedure shown in the eepromHelper.cpp to see how to get the AO calibration information.
Steven T.