Spoofing is used to send phishing emails, but it’s also used on cell phones. The FCC prohibits it from using the same area code and first three numbers of a Sprint number. Sprint customer service representatives say they’ve only had calls from telemarketing concerns. AT&T reminds its customers to read their privacy guidelines. Sprint provides a service called Premium Caller ID to protect its customers from unwanted robocalls and caller ID spoofers, the company’s spokesperson says. The only time you can reach out to Sprint security is if there has been a physical injury, as in an accident or assault.”]
Source: https://www.csoonline.com/article/3200197/cell-phone-spoofing-security-risk-or-just-annoying.html