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Sent TeamMar 8, 2026 / area code / Article

937 Area Code: Dayton Ohio Location, Cities & Complete Guide (2025)

What city is 937 area code? Complete guide to area code 937 in Dayton, Springfield, and southwestern Ohio. Coverage map, time zone (ET), 10-digit dialing, and how to get a 937 phone number.

Area Code 937: Coverage, Cities, and Key Information

Where is area code 937? Area codes 937 and 326 serve Dayton, Springfield, and southwestern Ohio, covering over 800,000 residents across Montgomery, Greene, Clark, and Miami counties in the Eastern Time Zone. This comprehensive guide explains coverage areas, cities served, 10-digit dialing requirements, number availability, and how to get a local 937 phone number.

You'll find this guide useful if you:

  • Want to know what city is 937 area code or where 937 calls originate
  • Are moving to or calling the Dayton, Ohio region
  • Need a local phone number for your business in southwestern Ohio
  • Manage telecommunications services in the 937/326 area
  • Want to understand 10-digit dialing requirements

What City Is 937 Area Code? Location & Coverage

Quick Answer: Area code 937 is located in southwestern Ohio, primarily serving Dayton (the largest city), Springfield, Kettering, Beavercreek, and surrounding communities in Montgomery, Greene, Clark, and Miami counties.

Area codes 937 and 326 cover southwestern Ohio, including urban centers and rural communities. The region operates in the Eastern Time Zone (ET): UTC-5 (standard time) and UTC-4 (daylight saving time).

Population Overview (2020 Census):

The 937/326 service area covers approximately 800,000 residents across multiple counties:

  • Montgomery County: 537,309 (fifth-most populous in Ohio; county seat: Dayton)
  • Greene County: 167,966 (county seat: Xenia; largest city: Beavercreek)
  • Clark County: 136,000 (county seat: Springfield)
  • Plus portions of Miami, Darke, Preble, Butler, Warren, and other counties

Major Cities in Area Code 937:

  • Dayton – Home to the Wright brothers and the National Museum of the United States Air Force
  • Springfield – Cultural attractions and vibrant downtown
  • Beavercreek – Excellent schools and parks
  • Kettering – Strong community focus and recreational facilities
  • Xenia – Historic downtown and county seat of Greene County
  • Fairborn – Home to Wright State University
  • Troy – Charming downtown and strong manufacturing base
  • Piqua – Industrial heritage and scenic Great Miami River

Counties Served by 937/326 Area Codes: The 937/326 area codes serve numerous counties in southwestern Ohio, including:

  • Montgomery County (Dayton, Kettering, Centerville, Miamisburg)
  • Clark County (Springfield, New Carlisle)
  • Greene County (Xenia, Fairborn, Beavercreek)
  • Miami County (Piqua, Troy, Tipp City)
  • Darke County (Greenville, Arcanum)
  • Preble County (Eaton, Camden)
  • Butler County (northern portions including Hamilton and Oxford)
  • Warren County (portions including Lebanon and Mason)

Verify Your Area Code:

Check whether a specific address falls within the 937/326 service area:

  1. Use the PUCO Find Utility by Address tool (interactive map)
  2. Contact your telecommunications provider
  3. Check third-party lookup tools like AllAreaCodes.com

Find a comprehensive list of cities and communities on the Ohio Public Utilities Commission website.

937 Area Code Time Zone

What time zone is area code 937? All phone numbers with area code 937 or 326 operate in the Eastern Time Zone (ET):

  • Eastern Standard Time (EST): UTC-5 (November through March)
  • Eastern Daylight Time (EDT): UTC-4 (March through November)

When calling 937 numbers from other time zones, remember that Dayton and southwestern Ohio observe daylight saving time and follow the same schedule as New York City, Atlanta, and other Eastern Time Zone cities.

History and Evolution of Area Code 937

Area code 937 split from area code 513 on September 28, 1996, in response to growing demand for phone numbers in southwestern Ohio. The Dayton region and surrounding areas received 937, while Cincinnati retained 513.

Key Milestones:

DateEventImpact
September 28, 1996937 split from 513Eastern and northern portions (including Dayton) assigned new area code
April 2018NANPA projects exhaustionNorth American Numbering Plan Administrator forecasts numbers running out by Q3 2020
February 8, 202010-digit dialing mandatoryAll local calls require full area code
March 8, 2020Area code 326 overlay activatedProvides additional numbers without changing existing 937 numbers

Fun fact: The digits "937" spell "YES" on a telephone keypad – a detail used in early promotional materials. Similarly, "326" spells "DAO" (Dayton, Ohio).

How to Dial 937 Area Code Numbers

Use the correct dialing format to ensure your calls connect successfully:

Local Calls (within 937/326 area): Always use 10-digit dialing (NPA-NXX-XXXX), even within the same area code. Mandatory since February 8, 2020.

  • Example: 937-555-0123

Long Distance (within US): Dial 1 + 10-digit number (1-NPA-NXX-XXXX)

  • Example: 1-937-555-0123

Operator Assisted: Dial 0 + 10-digit number (0-NPA-NXX-XXXX)

International TO 937/326: Country's international prefix + 1 (US country code) + area code + 7-digit number

  • Example from France: 00-1-937-555-0123

International FROM 937/326: 011 (US international prefix) + country code + local number

  • Example to UK: 011-44-20-XXXX-XXXX

Format explanation: NPA = area code (937 or 326), NXX = central office code, XXXX = subscriber number

Troubleshooting Common Dialing Issues:

  • 7-digit dialing error: Dial only 7 digits locally? You'll hear a message instructing you to redial with the full 10-digit format.
  • Missing "1" prefix: Long-distance calls within the US require the "1" prefix, or your call may fail.
  • Cell phone dialing: Mobile devices don't require the "1" prefix for 10-digit dialing within the US (though including it works fine).

How to Get a 937 or 326 Phone Number

Get a new 937 or 326 number by contacting telecommunications providers operating in the region. Major carriers (AT&T, Verizon, T-Mobile) manage assignments based on demand and PUCO guidelines. Contact your preferred provider to check current availability.

Get a New 937 Phone Number:

  1. Choose a Provider: Traditional carriers (AT&T, Verizon) or VoIP (RingCentral, Grasshopper, OpenPhone)
  2. Request Area Code: Specify 937 or 326 (both available)
  3. Activation Time: 24–48 hours for simple activations
  4. Pricing: Landlines: $20–60/month; VoIP: $10–30/user/month

Port Your Existing Number:

Under FCC regulations, keep your number when switching providers:

  • Simple Ports: One business day (single line)
  • Wireless-to-Wireless: 2.5 hours
  • Wireline-to-Wireless: Several business days
  • Process: Contact your new provider to initiate. Don't cancel your old service first.
  • Fees: $5–25 (some providers waive fees)
  • Required Info: Current phone number, account number, PIN/password, billing name and address

Special Number Types:

TypeExamplePricingBest For
Vanity Numbers937-PLUMBER$15–40/monthBrand recognition, easy recall
Toll-Free800/888/877/866$10–30/month + $0.06–0.30/minNational businesses
VoIP NumbersVirtual 937/326$10–30/monthAdvanced features (call routing, voicemail-to-email)

Telecommunications Regulations and Oversight

The Public Utilities Commission of Ohio (PUCO) regulates telecommunications services in area codes 937 and 326, ensuring service quality, managing number assignments, and overseeing area code implementation.

Consumer Rights and Protections:

  • Right to file complaints regarding service quality, billing disputes, or provider practices
  • Protection against unauthorized carrier changes ("slamming")
  • Right to maintain your phone number when switching providers (number portability)
  • Access to emergency services (911) regardless of account status

File a Complaint:

Can't resolve an issue with your provider? Follow these steps:

  1. Informal Complaint: Call the PUCO at (800) 686-PUCO (7826) or file online
  2. Formal Complaint: File a formal complaint if informal resolution fails (may result in a hearing)
  3. Information Needed: Account holder name, service address, provider name, account number, and detailed issue description
  4. Processing Time: Simple complaints: 30–45 days; complex cases may take longer

The PUCO coordinated the 326 area code overlay with carriers and emergency services to ensure a smooth transition.

Best Practices and Considerations

Essential Checklist:

  • Update contacts with full 10-digit numbers (area code + 7 digits)
  • Check automated systems:
    • Security and alarm systems
    • Medical alert devices
    • Fax machines and modems
    • PBX systems and auto-dialers
    • Gate/door access systems
  • Update business materials:
    • Website
    • Marketing materials
    • Business cards
    • Email signatures
  • Configure phone systems for 10-digit local dialing
  • Update CRM and customer databases
  • Test systems after updating

Your Rights:

  • Port your number to any carrier in the same geographic area
  • Providers cannot refuse porting, even with outstanding balances (you still owe the balance)
  • Contact your provider for troubleshooting assistance

Frequently Asked Questions About 937 Area Code

Common questions about area codes 937 and 326:

What city is 937 area code? Area code 937 primarily serves Dayton, Ohio, along with Springfield, Kettering, Beavercreek, Xenia, Troy, Piqua, and surrounding cities in southwestern Ohio across Montgomery, Greene, Clark, and Miami counties.

Where is area code 937 located? Area code 937 is located in southwestern Ohio, covering the Dayton metropolitan area and surrounding counties. It serves approximately 800,000 residents in the Eastern Time Zone.

What time zone is 937 area code? Eastern Time Zone (ET): UTC-5 (standard time) and UTC-4 (daylight saving time). Area code 937 follows the same time as New York City and Atlanta.

Why was area code 326 introduced? The 326 overlay addressed the dwindling supply of 937 numbers, ensuring continued growth and connectivity without requiring existing 937 customers to change their numbers.

Do I need to change my existing 937 number? No. Existing 937 numbers remain unchanged. The 326 overlay only affects new number assignments.

What if I dial a 7-digit number locally? Your call won't connect. You'll hear a message to redial with the 10-digit format (area code + 7-digit number).

Are there special dialing instructions for emergency services? No. Dial 911 as usual. Other three-digit numbers (211, 311) also work normally.

When did 10-digit dialing become mandatory in 937? February 8, 2020, with the 326 overlay introduction. All calls require the full 10-digit number.

Can I get a 937 number, or only 326? Both remain available. Your provider assigns whichever has availability at the time of your request.

Can I use a 937/326 number with VoIP? Yes. VoIP providers offer virtual 937/326 numbers with advanced features (call forwarding, voicemail transcription, mobile apps).

How long does number porting take? Simple ports: one business day. Wireless-to-wireless: 2.5 hours. Wireline-to-wireless: several days.

Will caller ID display correctly after the overlay? Yes. Caller ID shows the full 10-digit number (937 or 326). Update your phone system to display 10 digits.

How do I protect against spam and robocalls from 937 numbers? Register at the National Do Not Call Registry, enable carrier spam filtering, use call-blocking apps, and avoid answering suspicious calls.

Do I need a local 937/326 number for my business in Dayton? Local area codes increase answer rates and establish local presence. Studies show 23% higher answer rates than toll-free numbers for local businesses.

Other Ohio Area Codes

North American Area Codes

Telecommunications Guides

Official Resources

Conclusion

Area codes 937 and 326 serve over 800,000 residents across Dayton, Springfield, and southwestern Ohio's telecommunications infrastructure.

Key Takeaways:

  • Area code 937 location: Dayton and southwestern Ohio (Eastern Time Zone)
  • Use 10-digit dialing for all local calls (mandatory since February 2020)
  • Both 937 and 326 numbers available for new assignments
  • Port your number when switching carriers under FCC protection
  • Update automated systems to 10-digit format
  • File complaints with PUCO: (800) 686-7826
  • Local numbers increase business response rates by 23%

Next Steps:

  1. Need a 937 number? Contact your preferred carrier (AT&T, Verizon, T-Mobile) or VoIP provider
  2. Switching providers? Initiate number porting with your new carrier
  3. Having issues? Call PUCO at (800) 686-7826 or visit puco.ohio.gov
  4. Want to learn more? Explore the Related Resources section above

Frequently Asked Questions

What area code is Dayton Ohio?

Dayton, Ohio is primarily served by area codes 937 and 326. Area code 937 was the original area code for the region, while 326 was added as an overlay in 2020 to accommodate the growing demand for phone numbers.

Why does Dayton have two area codes?

Dayton has two area codes, 937 and 326, due to increased demand for phone numbers. The 326 overlay was added in 2020 to provide more numbers without requiring existing 937 users to change their numbers. This ensures continued growth and connectivity in the region.

How to dial a 937 number from a different area code?

To dial a 937 number from a different area code, dial 1 + the 10-digit number (1-937-XXX-XXXX). Ten-digit dialing is required for all calls, even within the same area code.

What is the area code 326 for?

Area code 326 is an overlay for area code 937 in southwestern Ohio. It was introduced in 2020 to provide additional phone numbers within the same geographic region as 937 without requiring existing users to change their numbers.

When should I use 10-digit dialing in Ohio?

You should always use 10-digit dialing (area code + 7-digit number) for all calls in southwestern Ohio, even for local calls within the same area code. This became mandatory in February 2020 with the introduction of the 326 overlay.

What cities are covered by area code 937?

Area code 937, along with its overlay 326, covers southwestern Ohio, including cities like Dayton, Springfield, Beavercreek, and Kettering. A full list of covered cities and communities is available on the Ohio Public Utilities Commission website.

How to update my contacts for 10-digit dialing?

To update your contacts for 10-digit dialing, ensure every contact includes the full area code and 7-digit number (e.g., 937-XXX-XXXX or 326-XXX-XXXX). This ensures seamless dialing with the mandatory 10-digit dialing requirement in the region.

Can I still dial 7-digit numbers locally in Dayton?

No, you can no longer dial 7-digit numbers locally in Dayton, Ohio. With the implementation of the 326 area code overlay, 10-digit dialing (including the area code) is mandatory for all calls, even local ones.

What is the Public Utilities Commission of Ohio (PUCO)?

The Public Utilities Commission of Ohio (PUCO) regulates telecommunications services in Ohio. They oversee number assignments, service quality, and the implementation of new area codes like 326. Contact them directly for regulatory information or service issues.

How to get a new phone number in area code 937?

To get a new phone number in area code 937 or 326, contact a telecommunications provider operating in southwestern Ohio, such as AT&T, Verizon, or T-Mobile. Availability fluctuates, so contacting a provider directly is the best way to check and explore service options.

Why was area code 937 created?

Area code 937 was created on September 28, 1996, as a split from the existing 513 area code. This split was necessary to accommodate the increasing demand for phone numbers in southwestern Ohio driven by population growth and technological advancements.

What does area code 937 spell on a phone keypad?

Area code 937 spells "YES" on a standard telephone keypad. This fact was used in early promotional materials when the area code was first introduced.