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Billing Telephone Number/Account Telephone Number (BTN/ATN)

A Billing Telephone Number/Account Telephone Number (BTN/ATN), in general terms, is a designated telephone number on a customer’s account which some providers use to as a way to easily identify an account (think main or primary designation). Sometimes these terms are used interchangeably, and other times they are used as separate items, based on the service provider and their business practices.


How Bandwidth Uses the BTN/ATN

Generally speaking, the BTN is the main telephone number on a customer’s account as established in a service providers’ systems – either a service provider or the customer can decide which number on an account may be designated as the BTN. For example, in the event of an issue when porting in numbers from another service provider, Bandwidth will use that service provider’s designated BTN on an account to request a CSR in order to resolve the porting issue.


What Are the Benefits of BTN/ATN

When Bandwidth submits a port request to a carrier, we provide the BTN/ATN that the customer has populated on the order. The carrier will take that BTN and search for their customer’s CSR (Customer Service Record) to obtain all of the account details in an effort to approve the port request. If the BTN provided on the order does not allow the carrier to pull up the account records, they will reject it back to us indicating the BTN is incorrect.



Where We Talk About BTN/ATN

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In our downloads



Terms Related to BTN / ATN



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Our lawyers have asked us to remind you that, in the event of any conflict between these defined terms and the defined terms included in any agreement between you and Bandwidth, the agreement controls.

“Bandwidth” refers to Bandwidth Inc. and/or CLEC, LLC.