Troy, Michigan
248 Area Code
Establish a trusted local presence in Troy and Oakland County with a 248 area code number. Perfect for businesses serving Michigan's automotive, tech and manufacturing corridor with higher answer rates and local credibility.
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About 248 Area Code
Area code 248 serves Oakland County and portions of Wayne County in southeastern Michigan. Created in 1997 as a split from the original 810 area code, 248 covers major business hubs including Troy, Southfield, Farmington Hills, Pontiac and Rochester Hills. The code supports local voice and SMS-capable numbers used by automotive suppliers, tech firms, healthcare providers and professional services across one of Michigan's most economically vibrant regions.
The 248 region anchors Michigan's automotive innovation ecosystem with headquarters for major suppliers like Lear, BorgWarner and Nexteer, plus research facilities for all 12 global automotive OEMs. Troy and Southfield host corporate offices, while Pontiac and Farmington Hills support manufacturing and tech clusters. Local businesses use 248 numbers for customer support, B2B sales, appointment scheduling and supplier coordination. Geographic numbers deliver higher answer rates than toll-free alternatives because they signal local presence and industry familiarity.
FoneSwift displays live 248 inventory with Voice, SMS and MMS capabilities on this page. Search available numbers to find options that match your business needs. Area-code availability fluctuates based on demand. If a 248 number is not immediately available, nearby codes like 313, 586 or 810 can provide similar regional recognition for businesses targeting metro Detroit markets.
If you serve Oakland County or metro Detroit, display your 248 number in both local and E.164 formats such as (248) 555-1234 and +1 248 555 1234. Register A2P messaging for business SMS campaigns to maintain compliance and deliverability. For porting existing numbers, check our porting guide. Keeping the same number helps preserve customer recognition and brand continuity during provider transitions.
| Country | United States |
| State | Michigan |
| Area code | 248 |
| Primary cities | Troy, Southfield, Farmington Hills, Pontiac |
| Counties served | Oakland, Genesee, Livingston, Macomb, Washtenaw, Wayne |
| Timezone | America/Detroit (EST) |
| Created | May 10, 1997 |
| International Format | +1 248 XXX XXXX |
| Local Format | (248) XXX-XXXX |
10-digit dialing is mandatory for all calls within and into the 248/947 region due to the overlay configuration. Register A2P messaging for business SMS campaigns to comply with U.S. carrier regulations.
Area code 248 uses Eastern Standard Time (EST, UTC-5) and observes Daylight Saving Time, shifting to Eastern Daylight Time (EDT, UTC-4) from March to November annually.
Local numbers build regional trust and improve answer rates for businesses targeting Oakland County and metro Detroit. If 248 inventory is limited, nearby codes like 313, 586 or 810 provide similar regional presence across southeastern Michigan.
Quick Facts about 248 Area Code
Interesting tidbits about this area code 248
Split from 810
Area code 248 was created in 1997 when the 810 code reached capacity due to rapid suburban growth and the surge in mobile phone and internet demand across Oakland County.
Overlay with 947
In 2002, area code 947 was introduced as an overlay for the same geographic region, requiring mandatory 10-digit dialing for all calls within the 248/947 service area.
Automotive R&D powerhouse
Oakland County hosts research facilities for all 12 global automotive OEMs and ranks ninth nationally for new patents issued annually, cementing 248 as a hub for automotive innovation.
Corporate headquarters corridor
Troy and Southfield concentrate major corporate headquarters including automotive suppliers, tech companies and professional services firms that drive regional economic activity.
Engineering talent density
Over 30,000 engineers work in Oakland County, supported by institutions like Oakland University and Lawrence Technological University, creating a strong workforce for advanced manufacturing.
Foreign investment magnet
More than 800 foreign-owned companies from 33 countries operate in Oakland County, drawn by proximity to automotive customers and North American headquarters locations.
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How Does Local 248 Phone Numbers Work?
A local business number is a structured telephone identifier that tells networks where to route calls and messages. When you use a 248 number in Troy and Michigan, the digits signal the international gateway, the geographic region, the local exchange and the specific subscriber, so calls reach the right destination quickly and reliably.
The typical parts of a United States local number are:
- Country code (+1): identifies United States for international routing.
- Area code (248): directs the call to the Troy / Michigan region.
- Central office / exchange (eg. 555): narrows the call to a local switching area or rate center.
- Subscriber number (eg. 1234): the unique line assigned to a person, extension, or device.
Example formats:
| International Format (E.164) | +1 248 555 1234 |
| Local Format (National) | (248) 555-1234 |
Quick Dialing Guide
The correct formats to reach 248 numbers locally and globally.
From Landlines
Standard United States FormatUse for domestic long-distance calls within United States.
From Mobile
E.164 InternationalThe universal format. Works on any mobile device, anywhere.
International
From abroadDialing from outside United States (exit code 00 varies by country).
With FoneSwift, your 248 number can be instantly configured through our intuitive dashboard. Connect it to call forwarding rules, AI voice agents, IVR menus, or route calls directly to any device. Enable voice, SMS, and MMS capabilities right from your account, no technical setup required. Your number becomes active immediately after purchase, and you can update routing, business hours, and integrations anytime.
For businesses, local numbers offer clear benefits: higher answer rates, stronger local recognition, and better performance for local campaigns and customer trust. Typical business features include call forwarding, call recording, auto-attendants, voicemail-to-email, and multi-device ringing.
Important operational notes:
- SMS & A2P: If you plan to send application-to-person messages from a 248 number, register your traffic where required and follow carrier rules (10DLC/A2P) to avoid deliverability or throughput issues.
- Number Porting: Bring your existing 248number to FoneSwift seamlessly. Our team handles the entire porting process, simply submit your number details and we'll coordinate with your current provider. Porting typically completes within 5-10 business days, and you'll receive updates at each step. There's no service interruption during the transfer.
- Display & formatting: Always publish numbers in both local and E.164 formats so international and mobile users can easily dial.
Ready to get started? Browse available 248 numbers in the phone numbers section above, you'll see real-time availability and can filter by features like voice, SMS, and MMS. Once you find your perfect number, purchase it in seconds and start making calls immediately. Our team is here to help you choose the right setup for your business needs, whether you're setting up AI receptionists, call forwarding, or SMS campaigns. Start your 14-day free trial today, no credit card required.
How to Get a 248 Phone Number
Buying a local 248 phone number using FoneSwift is easy and takes just a few minutes. Follow these simple steps to get your local 248 phone number and start connecting with customers in United States today.
Create a new account on FoneSwift or sign in to your existing account to get started.
Once logged in, you'll be taken to your FoneSwift dashboard where you can manage all your phone numbers and settings.
Click on Settings in the sidebar, then go to "My Numbers" and click the "Add a Number" button.
Choose United States as your country from the dropdown menu.
Select Local as the type of number, then choose the 248 area code from the available options.
Click the "Search" button to see all available phone numbers with the selected area code.
Browse through the available numbers, select one that fits your needs, click "Buy Number", and confirm your purchase.
Your number is now active! Start making and receiving calls from the FoneSwift Dialer immediately.
You can configure your number to handle calls, forward calls, or even create an AI voice agent to handle the calls for you.
Businesses Using 248 Phone Numbers
Oakland County hosts automotive suppliers, advanced manufacturing, technology and professional services. Local phone numbers support customer-facing operations, B2B sales and regional business development.
Automotive suppliers & OEMs
Tier 1 suppliers, research centers and OEM facilities use local numbers for procurement, engineering support and supplier coordination. A 248 number signals industry presence and regional expertise to customers and partners.
Advanced manufacturing & robotics
Manufacturing operations, automation companies and robotics integrators rely on local numbers for customer support, equipment service and B2B sales. The 248 code connects businesses to Michigan's industrial base.
Professional services & consulting
Law firms, accounting practices, IT consultants and business services use local numbers for client communications, appointment scheduling and regional marketing. Local presence builds trust with corporate clients.
Healthcare & medical services
Hospitals, clinics, medical practices and telehealth providers depend on local numbers for patient scheduling, appointment reminders and care coordination. Familiar area codes improve patient engagement and answer rates.
Technology & software companies
Software developers, IT services and tech startups use local numbers for customer support, sales and technical assistance. The 248 code connects tech companies to Michigan's growing innovation ecosystem.
Real estate & property management
Real estate agencies, property managers and commercial developers use local numbers for client inquiries, property showings and tenant communications across Oakland County's competitive real estate market.
Why Choose 248 Local Phone Number for Your Business?
Discover the advantages of having a local phone number that builds trust, increases engagement, and drives results.
Powerful Features for Your 248 Local Phone Number
Get the most out of your localphone number with FoneSwift's enterprise-grade features designed to help your business communicate more effectively.
Nearby Area Codes
Explore other area codes in the same region to expand your local presence.
Frequently Asked Questions
What cities and areas does the 248 area code cover?
When was area code 248 established?
What is the 947 overlay and how does it work with 248?
Can I get Voice and SMS-capable 248 numbers from FoneSwift?
Is 10-digit dialing required for 248 area code?
Is 248 a toll-free area code?
How do I purchase a 248 phone number?
Can I port my existing 248 number to FoneSwift?
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