Billerica, Massachusetts
Billerica, Massachusetts, in Middlesex County, has ZIP codes 01821 and 01822 and area code 978, with 351 as an overlay.
- ZIP codes
- 01821, 01822
- Area codes
- 978, 351
- County
- Middlesex County
- State
- Massachusetts
- Time zone
- Eastern Time
- Coordinates
- 42.5551, -71.2604
ZIP codes in Billerica
Area codes for Billerica
- Area code 978
In service since September 1, 1997. Shares its area with 351. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.
- Area code 351
In service since May 2, 2001. Shares its area with 978. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.
Area codes here are matched from telephone rate centers, so a place near a boundary can have local numbers from either side of it.
Time zone
Billerica is in the Eastern Time zone.
Towns near Billerica
- Nutting Lake2 km (1.2 mi)
- North Billerica3.3 km (2.1 mi)
- Pinehurst3.9 km (2.4 mi)
- Tewksbury6.1 km (3.8 mi)
- Wilmington7.2 km (4.5 mi)
- Burlington7.4 km (4.6 mi)
- Bedford8 km (5.0 mi)
- Carlisle8.1 km (5.0 mi)
Local numbers in area code 978
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