← Area code 640
640-247 phone numbers
Numbers 640-247-0000 to 640-247-9999 are assigned to Boost Subscriberco L.L.C. in Ocean City, NJ. 1 of its ten thousand-number blocks are assigned to other carriers (number pooling).
Not assigned to any carrier: 640-247-0xxx, 640-247-1xxx, 640-247-2xxx, 640-247-3xxx, 640-247-4xxx, 640-247-5xxx, 640-247-6xxx, 640-247-8xxx — calls from these use spoofed caller IDs.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.