Charlestown, Massachusetts

ZIP codes in Charlestown

Area codes for Charlestown

• Area code 617

  In service since 1947. Shares its area with 857. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

• Area code 857

  In service since May 2, 2001. Shares its area with 617. 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

Charlestown is in the Eastern Time zone.

Towns near Charlestown

• Chelsea3.2 km (2.0 mi)
• Boston3.5 km (2.2 mi)
• Cambridge3.6 km (2.2 mi)
• Everett3.8 km (2.4 mi)
• Somerville3.9 km (2.4 mi)
• Malden5.7 km (3.5 mi)
• Roxbury Crossing5.7 km (3.5 mi)
• Medford5.8 km (3.6 mi)