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Where is the 840 Area Code?
The 840 area code is located in California, United States, and primarily serves the Inland Empire region, especially cities in San Bernardino County. It operates as an overlay to the 909 area code, meaning both codes cover the same geographic region as demand for new phone numbers increases.
Key Locations within the 840 Area Code:
- Major Cities & Communities:San Bernardino, Fontana, Rancho Cucamonga, Ontario, Pomona, Rialto, Chino, Upland, Chino Hills, Redlands, Diamond Bar, Highland, Yucaipa, Colton, Montclair
- Counties (Partial or Complete Coverage): San Bernardino County and parts of Los Angeles County
Time Zone
The 840 area code, covering San Bernardino, Fontana, Ontario, and other cities in the Inland Empire, is in the Pacific Time Zone (PT). The region observes Pacific Standard Time (PST, UTC−8) during the winter months and switches to Pacific Daylight Time (PDT, UTC−7) for daylight saving time in the summer.
About the 840 Area Code in California
The 840 area code was introduced in 2021 as an overlay for the 909 region to meet the
increasing demand for phone numbers in San Bernardino County. It serves major commercial
centers such as Ontario, San Bernardino, and Fontana, which are essential to the state's
industrial and logistical operations. This region is a significant economic driver for
California; the Riverside-San Bernardino-Ontario metropolitan area generated approximately
$256.9 billion in Gross Domestic Product (GDP) in 2023.
Key Economic Sectors in the 840 Region:
- Logistics & Supply Chain: Amazon (multiple fulfillment centers), FedEx, Ontario International Airport operations
- Healthcare & Research: Loma Linda University Health, San Bernardino County Medical Center
- Manufacturing: California Steel Industries
- Education & Government: California State University, San Bernardino, County of San Bernardino administrative offices
History of the 840 Area Code
The 840 area code was implemented on February 23, 2021, as an overlay for the 909 area code in Southern California. It was introduced by the California Public Utilities Commission to meet the growing demand for phone numbers in the San Bernardino region. The overlay ensures that both 840 and 909 serve the same geographic area, including key cities such as San Bernardino, Ontario, and Fontana.
The 840 overlay was designed to relieve the numbering shortage in the 909 region. As of now, the combination of 840 and 909 numbers is sufficient to serve the area, with no immediate plans for a new area code. This solution allows residents and businesses to continue using existing phone numbers while accommodating future growth.
Find Your Perfect 840 Virtual Phone Number
Browse our extensive collection of virtual phone numbers and get your 840 area code number to strengthen your business presence.
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Some numbers require ID and address verification under local laws. Certain numbers also require A2P 10DLC registration to send SMS or MMS to the United States. Moreover, some numbers may not appear in this search because they are not generally offered to customers and are available only on request. Please for assistance.
840 Area Code: Dialing Format, Prefixes & Network Coverage
The 840 area code serves Southern California as an overlay to the 909 area code. Since both codes cover the same region, all local calls require 10-digit dialing. For U.S. long-distance calls, the number is dialed as 1-840-XXX-XXXX, using the leading 1 with the existing 10-digit number. International callers can reach the region by dialing +1-840-XXX-XXXX.
The 840 area code has numerous active prefixes, distributed across landline, wireless, and VoIP networks throughout the region. Coverage includes about 86% of San Bernardino County and 11% of Los Angeles County. Major carriers in the area include Verizon, AT&T, T-Mobile, and Comcast, providing reliable connectivity across all network types.
The 840 area code supports both traditional networks and VoIP/virtual phone systems. Businesses can use virtual 840 numbers to create a local presence, access features like IVR, auto attendants, and sentiment analysis, and connect with customers in San Bernardino, Fontana, Ontario, and nearby areas without needing multiple physical offices.
Nearby Area Codes
Key Features of an 840 Area Code Virtual Phone Number
How to Get an 840 Area Code Virtual Phone Number?
Purchasing 840 phone numbers has become more straightforward with Calilio. Simply follow the below easy steps and get your virtual phone number from anywhere in the world.
Create an account on Calilio log in and to your dashboard.
Navigate to the left sidebar and click the plus symbol (+) located next to the Number section.
You will land on the My Number page; select the United States as the country for an 840 area code number.
Select the Number Type and then choose the Capabilities (SMS, Voice, MMS).
Scroll down, select an available number from the list, and click the "Add to Cart" button.
In the final step, enter your name and click Confirm Purchase from the cart to complete payment and activate your virtual number.
Already Have a San Bernardino County Local Phone Number?
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Frequently Asked Questions
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