There are a number of scams involving phone calls from numbers with the 855 prefix, including fake debt collection services, fake computer tech support and false company representatives. Wary consumers should never divulge personal information to such unsolicited callers.
Fraudulent individuals claiming to be company representatives ask for confirmation of personal details such as name, address and Social Security number. Malware is sometimes placed in internet downloads; this causes a system error message with advice to call an 855 number to pay for tech support. False debt collectors ask for money to be wired to them. Report scams from fraudulent numbers to Consumer Affairs or the police.