Westmont, California

Nearest ZIP codes to Westmont

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

Area codes for Westmont

• Area code 213

  In service since 1947. Shares its area with 323 and 738. Local calls are dialed with 1 plus ten digits.

• Area code 323

  In service since June 13, 1998. Shares its area with 213 and 738. Local calls are dialed with 1 plus ten digits.

• Area code 738

  In service since November 1, 2024. Shares its area with 213 and 323. Local calls are dialed with 1 plus ten digits.

• Area code 310

  In service since November 2, 1991. Shares its area with 424. Local calls are dialed with 1 plus ten digits.

• Area code 424

  In service since August 26, 2006. Shares its area with 310. 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

Westmont is in the Pacific Time zone.

Towns near Westmont

• West Athens2 km (1.2 mi)
• Inglewood4.4 km (2.7 mi)
• West Rancho Dominguez5.2 km (3.2 mi)
• Lennox5.2 km (3.2 mi)
• Hawthorne5.4 km (3.4 mi)
• Gardena5.8 km (3.6 mi)
• Florence-Graham6 km (3.7 mi)
• Willowbrook6.4 km (4.0 mi)