240-635 phone numbers

Numbers 240-635-0000 to 240-635-9999 are assigned to Core Communications, Inc.- Md (rate centre TOMPKINSVL, MD, NANPA abbreviation). 3 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.

Reported numbers in 240-635