San Antonio Heights, California

Nearest ZIP codes to San Antonio Heights

These are the ZIP codes nearest to San Antonio Heights, each listed with the post office it is named after.

Area codes for San Antonio Heights

• Area code 909

  In service since November 14, 1992. Shares its area with 840. Local calls are dialed with 1 plus ten digits.

• Area code 840

  In service since February 23, 2021. Shares its area with 909. Local calls are dialed with 1 plus ten digits.

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

San Antonio Heights is in the Pacific Time zone.

Towns near San Antonio Heights

• Upland3.7 km (2.3 mi)
• Claremont7.6 km (4.7 mi)
• Rancho Cucamonga7.9 km (4.9 mi)
• Mount Baldy8.9 km (5.5 mi)
• Montclair9.9 km (6.2 mi)
• Ontario11.1 km (6.9 mi)
• La Verne11.3 km (7.0 mi)
• Guasti12.2 km (7.6 mi)