Hi Eurelisse, thanks for taking the time out of your hectic day to ask us your question about the Samsung Galaxy A15. The advertised unlocked Galaxy A15 works on the 4G LTE and 5G wireless network and is compatible with AT&T, Boost Mobile, Cricket, Google Fi, H2O Wireless, MetroPCS, Mint Mobile, Simple Mobile, T-Mobile, Ting Mobile, Ultra Mobile, US Cellular, and Verizon. With this being an unlocked device, we recommend reaching out to Spectrum Mobile to inquire if this device would also be compatible on their network with the information that has been shared above. Let us know if you think of any additional questions for us by reaching out to Samsung Support at your leisure. Thank you for being a valued Samsung customer. - Debra