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610-421 phone numbers

Numbers 610-421-0000 to 610-421-9999 are assigned to Rcn Telecom Services of Pennsylvania, Inc. in Emmaus, PA. 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.

Reported numbers in 610-421