NPA-NXX - 401-578

This is the 401-578 subcode (NPA-NXX) prefix page. Follow a prefix to find the number you are looking for. We divide our pages up to make them more user friendly to navigate!

1. Area Codes
2. 401
3. 401-578

The 401-578 subcode mainly covers Providence in Providence county. But other numbers maybe included as well.

We have a database of information derived from the public phone records of Rhode Island state. Many of the numbers in this subcode are Cellular (Dedicated) registered to Verizon Wireless. We hear they employ a large number of people in the Rhode Island office.
Recently there have been an increase in reported calls, we've had over 626667 comments across our systems for the 401-578 subcode.