Mobile program brings school supplies to kids in need The Operation School Bell mobile program is bringing school supplies to those in need. and last updated 2021-07-28 21:08:59-04 PHOENIX â The Assistance League of Phoenix is ready to roll out Operation School Bell. The program has been providing K-8 th grade students, living in poverty, with brand new school clothing, shoes, and other essentials for 35 years. Operation School Bell is a mobile program, taking their Delivering Dreams Buses to schools from August through April. Due to the pandemic, the program shifted, noticing a need for leisure clothes as kids learned virtually. Now, they offer both school uniforms and non-uniformed clothes to help fill the need.