Although 877 numbers belong to the 800 number segment this does not mean that all numbers with the 877 prefix are tollfree. The only criterion for determining whether a phone number is tollfree is whether the service provider it belongs to provides free calling services.
In other words some companies may
Choose to use 877 numbers as USA Phone Number their nontollfree numbers because 877 numbers have a high recognition and popularity in North America. On the other hand some companies may choose to use877 numbers are their tollfree numbers to make it easier for customers to identify and call.
So how do you tell if an 877 number is tollfree
Check the company website or promotional materials Most companies will clearly state on their websites or promotional materials whether their customer service phone number is tollfree.
Call the number and ask customer service If the company website does not clearly state it you can directly call the number and ask customer service and they will give you a clear answer.
Use online tools to check Some online tools can help you check the type of phone number such as whether it is a tollfree number.
Summary