← Area code 571
571-340 phone numbers
Numbers 571-340-0000 to 571-340-9999 are assigned to Verizon Wireless (rate centre WSNGTNZN19, VA, NANPA abbreviation). 7 of its ten thousand-number blocks are assigned to other carriers (number pooling).
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.