Area code 909 is a vital part of Southern California’s telecommunications landscape. If you’ve ever wondered, “Where Is Area Code 909?”, you’re not alone. This guide will provide a comprehensive overview of the 909 area code’s location, the cities it covers, and crucial dialing changes that have been implemented for this region, ensuring you stay connected without any confusion.
Decoding Area Code 909: Location and Geographical Coverage
Area code 909 is situated in the vibrant region of Southern California. Specifically, it primarily serves the southwestern portion of San Bernardino County, extending into the eastern part of Los Angeles County, and also includes small sections of Orange and Riverside Counties. This makes the 909 area code a significant connector for numerous communities within the Inland Empire and extending towards the Greater Los Angeles area.
To give you a clearer picture of where area code 909 is, here’s a list of some of the prominent cities it encompasses:
- 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
- Yucaipa
This extensive list highlights the broad reach of area code 909, covering a mix of residential, commercial, and recreational areas within Southern California. Understanding these locations helps clarify where you might encounter or need to use the 909 area code.
Important Dialing Updates for Area Code 909 and the 840 Overlay
Recently, a significant change has been introduced for those using or calling numbers within the 909 area code. Starting January 23, 2021, it became mandatory for all callers to dial “1” + area code + telephone number for every call, including local calls. This change was implemented by the California Public Utilities Commission (CPUC) to pave the way for a new area code overlay.
This overlay introduces the 840 area code to the same geographical region currently served by 909. The introduction of the 840 area code ensures a continuing supply of telephone numbers for the area’s growing population and businesses. Crucially, this overlay means that residents and businesses within the 909 and 840 area codes must adhere to the new dialing procedure for all calls within and between these area codes.
Key Points Regarding the Dialing Change:
- Mandatory Dialing Procedure: As of January 23, 2021, you must dial 1 + 909 + seven-digit phone number for all calls from and to 909 numbers. Wireless users may dial just the area code + telephone number.
- New Area Code Overlay: The 840 area code now shares the same geographic region as the 909 area code. New phone numbers may be assigned under the 840 area code starting February 23, 2021.
- No Change to Existing Numbers or Call Costs: Your existing 909 phone number will not change, and the cost of calls remains the same. Local calls remain local.
- Reprogram Devices: Ensure all automatic dialing equipment like life safety systems, medical monitoring devices, fax machines, alarm systems, speed dialers, and voicemail services are reprogrammed to use the new dialing procedure.
- 9-1-1 and Other 3-Digit Codes: Dialing 9-1-1 remains unchanged – you can still dial just three digits. The same applies to other 3-digit codes like 211, 311, 411, etc.
Staying Connected in the 909 and 840 Area Codes
Understanding where area code 909 is located and being aware of the dialing changes are essential for seamless communication. Whether you are a resident, business, or visitor to the southwestern portion of San Bernardino County, the eastern portion of Los Angeles County, or the smaller parts of Orange and Riverside Counties, these updates directly affect you.
By ensuring your dialing habits and devices are updated, you can avoid any disruptions in your communication. Remember, if you are in or calling the 909 or 840 area codes, always dial 1 + area code + telephone number to stay connected. For further information, you can always contact your telephone service provider or visit the CPUC website for detailed resources.
