← Area code 856
856-564 phone numbers
Numbers 856-564-0000 to 856-564-9999 are assigned to Onvoy, LLC (rate centre MOORESTOWN, NJ, NANPA abbreviation). 3 of its ten thousand-number blocks are assigned to other carriers (number pooling).
Not assigned to any carrier: 856-564-2xxx, 856-564-3xxx, 856-564-4xxx, 856-564-5xxx, 856-564-6xxx, 856-564-8xxx — calls from these use spoofed caller IDs.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.