Real Estate by Nick Abbadessa
Nick Abbadessa

New Area Code for the 909 Region

If 2020 wasn’t strange enough, get ready for a new area code. Starting July 25, 2020, the area code “840” will be added to the 909 region, thus requiring phone customers to dial 1 plus the area code before they dial a phone number.
840 area codeCurrently the following areas use the 909 area code: the southwestern portion of San Bernardino County, the eastern portion of Los Angeles County, and small portions of Orange and Riverside Counties. These include the cities of Big Bear Lake, Calimesa, Chino, Chino Hills, Claremont, Colton, Diamond Bar, Eastvale, Fontana, Grand Terrace, Highland, Industry, La Verne, Loma Linda, Montclair, Ontario, Pomona, Rancho Cucamonga, Redlands, Rialto, San Bernardino, San Dimas, Upland, Walnut, and Yucaipa. The new 840 area code will serve these same areas.

As an overlay, the new 840 area code is not replacing the 909 area code. Rather, it will be acting as an additional area code for purposes of ensuring that our 909 region will maintain a continuing supply of telephone numbers for the area. This distinction is important because in 1998, we did have to go through a 909 area code split – where customers were required to change their existing area code. But again, this is not the case here and the only “drawback” is that we will have to dial 1 plus the three digit area code first for even local calls.

Although 909 customers MAY begin using this new dialing procedure on July 25th, it won’t become mandatory for ALL 909 area code telephone numbers until January 23, 2021. Note, these changes will apply to both residences and business. Then, starting on February 23, 2021, consumers requesting new or additional telephone numbers for services MAY be assigned a telephone number with either an 840 or 909 area code, depending on available telephone number inventory.

In preparation for the new 840 area code, it is recommended to:

1) Begin dialing 1 + area code + telephone number for all calls starting July 25, 2020.

2) Reprogram dialing equipment that currently use a seven digit dialing system with the 1 + area code + telephone number requirement – including for automatic dialers, life safety systems, medical monitoring devices, speed-dialing, call forwarding, voicemail services, modems for computers or Internet dial-up access, and other similar services or equipment.

3) Ensure you update your alarms, security doors, and gate systems accordingly.

4) Test telephone equipment (i.e. fax machines) to see if they are working properly with the new overlay.

5) Update your phone number listings to include your area code if it already doesn’t, including on websites, business cards, personal and pet ID tags, stationery, checks, business cards, ads, promotional items, brochures, catalogs, etc.

NOTE: The new overlay doesn’t impact dialing the following three digits:

211 – Information and referral helpline to community, social, government, and health services.
311 – Connects the public to a wide variety of non-emergency City services and general City information.
411 – Offers telephone directory and business listings.
511 – Public information on highway travel to improve safety and reduce congestion.
611 – Report a problem with telephone service or payphone.
711 – Telecommunications Relay Services permit persons with a hearing or speech disability to use the telephone system via a text telephone (TTY) or other device to call persons with or without such disabilities.
811 – The national call-before-you-dig phone number. If you plan to dig (i.e. planting trees and shrubs, installing a fence, adding a mailbox) call 811 a few days before. The More You Know…
911 – Emergency number for police, fire and ambulance for life threatening situations.

For more information on the new area code, please contact your telephone service provider or visit:

As always, for more local updates OR if you need any help listing or buying a home, please don’t hesitate to reach out.

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