← Area code 978
978-477 phone numbers
Numbers 978-477-0000 to 978-477-9999 are assigned to Mcimetro Access Transmission Services LLC (rate centre W NEWBURY, MA, NANPA abbreviation).
Not assigned to any carrier: 978-477-1xxx, 978-477-3xxx, 978-477-4xxx, 978-477-9xxx — calls from these use spoofed caller IDs.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.