Area Code 840 — San Bernardino, California

840 Area Code – San Bernardino, California: Location, Time Zone & History

Build trust, look local, and grow your business with a phone number in area code 840. Instant activation, flexible forwarding, and clear pricing.

Buy a 840 area code phone number in San Bernardino

About Area Code 840

Region Code
840
City
San Bernardino
State
California
Largest City
San Bernardino
Neighboring Codes
  • 626 (Pasadena, California)
  • 951 (Riverside, California)
  • 760 (Oceanside, California)
  • 714 (Anaheim, California)
Time Zone
Pacific Time

Map of Area Code 840

Available Phone Numbers

Choose from popular and easy-to-remember local numbers. Instant purchase and activation.

Similar Numbers in the Same Area Code

View Full List of Numbers in 840 Area Code

History & Cultural Notes

The Inland Empire's numbering history runs through a single lineage: area code 714 gave up its eastern territory to create 909 on November 14, 1992, and 909 in turn lost western Riverside County to the new 951 in 2004. When even the reduced 909 footprint began running short, the California Public Utilities Commission ordered relief in Decision D.19-06-013 of June 13, 2019, and 840 entered service February 23, 2021 as an all-services overlay -- the region's first overlay after nearly three decades of 909 serving alone.

The 909/840 complex anchors one of the largest logistics and warehousing hubs in the country, built around the ports of Los Angeles and Long Beach and served by Ontario International Airport, with Historic Route 66 still running through the San Bernardino, Rialto, and Fontana corridor.

  • San Bernardino, Fontana, and Rancho Cucamonga anchor the distribution-center corridor
  • Ontario, Chino, and Chino Hills add manufacturing and cargo capacity
  • Claremont, La Verne, and San Dimas connect to the Claremont Colleges and Cal Poly Pomona
  • Pomona itself is split between the 909/840 overlay and neighboring 626