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← Area code 516

516-780 phone numbers

Numbers 516-780-0000 to 516-780-9999 are assigned to Mcimetro Access Transmission Services LLC (rate centre NASSAUZN05, NY, NANPA abbreviation). 6 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 516-780