Arlington, Virginia
703 Area Code
Establish a trusted local presence in Arlington and Northern Virginia with a 703 area code number. Essential for businesses seeking higher pickup rates and local credibility in Arlington, Fairfax, Loudoun and Prince William counties.
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About 703 Area Code
Area code 703 serves Northern Virginia, covering Arlington, Alexandria, Fairfax, Reston, Leesburg and McLean. Created in 1947 as one of the original 86 area codes, 703 initially served the entire state of Virginia before later splits carved out other regions. The code spans Arlington, Fairfax, Loudoun and Prince William counties plus the independent cities of Alexandria, Fairfax, Falls Church, Manassas and Manassas Park. The 703 area code supports local voice and SMS-capable numbers used by government contractors, technology companies, professional services and businesses throughout this economically vital region adjacent to Washington, D.C.
The 703 region drives one of the nation's highest-value economies, powered by federal government contracting (defense, intelligence, IT services), technology clusters (Amazon Web Services, cybersecurity, data centers), professional services (consulting, legal, financial), and aerospace firms. Local businesses use 703 numbers for client communication, contract coordination, federal agency outreach and professional networking. A local area code delivers higher answer rates in a metro area where proximity to the Pentagon, CIA, and countless federal agencies makes regional presence essential for business credibility and government sector success.
FoneSwift lists live 703 inventory and capabilities on this page. Search numbers to see which support Voice, SMS and MMS. Area-code availability changes over time. If a local 703 number is not immediately available, the overlay code 571 serves the same geographic region and provides identical Northern Virginia presence for businesses targeting government contracting, technology or professional service markets. Both codes require mandatory 10-digit dialing.
If your business targets Northern Virginia or the Washington metro area, publish numbers in both local and E.164 formats (e.g., (703) 555-1234 and +1 703 555 1234) and register messaging traffic if you plan A2P campaigns. For porting, see our porting guide. Note that 10-digit dialing is mandatory within the 703/571 overlay region for all calls. Keeping the same number preserves client relationships in a market where government contracting, Pentagon proximity and professional reputation drive long-term business value and where local presence signals commitment to the region.
| Country | United States |
| State | Virginia |
| Area code | 703 |
| Primary cities | Arlington, Alexandria, Fairfax, Reston |
| Counties served | Arlington, Fairfax, Loudoun, Prince William, Fauquier, Stafford |
| Timezone | America/New York (EST) |
| Created | October 1, 1947 |
| International Format | +1 703 XXX XXXX |
| Local Format | (703) XXX-XXXX |
10-digit dialing is mandatory within and into the 703/571 overlay region for all calls, including local calls. Register A2P messaging for business SMS to comply with US carrier rules (10DLC).
Area code 703 uses Eastern Standard Time (EST, UTC-5) and observes Daylight Saving Time (EDT, UTC-4 during summer months). Plan outreach accordingly for time-sensitive calls to government agencies and businesses.
Local numbers are essential for higher answer rates in government contracting and professional services markets. The overlay code 571 serves the same geographic region. Consider both 703 and 571 for additional inventory while maintaining Northern Virginia presence.
Quick Facts about 703 Area Code
Interesting tidbits about this area code 703
Original area code
Area code 703 was one of the original 86 area codes created in 1947. It initially served the entire state of Virginia, making it one of the longest-serving area codes in the nation before later splits.
Pentagon headquarters
Arlington in the 703 region is home to the Pentagon, the world's largest office building and headquarters of the U.S. Department of Defense. This proximity drives massive defense contracting, military logistics and national security businesses.
Government contracting capital
Northern Virginia receives more federal contracting dollars than any other locality in the United States. Major contractors like Booz Allen Hamilton, Leidos, Northrop Grumman and hundreds of defense and IT firms operate headquarters here.
Tech hub extraordinaire
Loudoun County in the 703 region houses Data Center Alley, the world's highest concentration of data centers. Amazon Web Services, Microsoft Azure and Google Cloud operate massive facilities supporting global internet infrastructure.
Overlay with 571
In 2000, area code 571 was added as an overlay to 703, serving the same geographic region. Both codes require 10-digit dialing for all local calls. The 703 code often carries legacy perception of being more established.
Seven-digit dialing legacy
Until 2000, residents could dial any number in the Washington metro area with just seven digits, even across area codes. The entire metro functioned as a single local calling area spanning Maryland, Virginia and D.C.
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How Does Local 703 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 703 number in Arlington and Virginia, 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 (703): directs the call to the Arlington / Virginia 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) | +1 703 555 1234 |
| Local Format (National) | (703) 555-1234 |
Quick Dialing Guide
The correct formats to reach 703 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 703 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 703 number, register your traffic where required and follow carrier rules (10DLC/A2P) to avoid deliverability or throughput issues.
- Number Porting: Bring your existing 703number 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 703 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 703 Phone Number
Buying a local 703 phone number using FoneSwift is easy and takes just a few minutes. Follow these simple steps to get your local 703 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 703 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 703 Phone Numbers
Northern Virginia hosts government contracting, technology, aerospace, professional services and data centers. Local phone numbers are essential for government sector engagement and business credibility.
Government contracting
Defense contractors, IT services firms, intelligence agencies and consulting companies dominate the region. Local numbers are essential for contract coordination, client communication, security clearance coordination and partnership development across federal agencies.
Technology & cybersecurity
Cloud computing providers, cybersecurity firms, software companies and tech startups use local numbers for client support, sales outreach, partnership coordination and talent recruitment in one of the nation's leading tech ecosystems.
Aerospace & defense
Major aerospace firms (Northrop Grumman, BAE Systems, Airbus U.S.), defense electronics companies and systems engineering providers use local lines for government liaison, contract execution, supply chain coordination and technical support.
Professional services
Law firms, consulting companies, accounting practices and financial advisors use local numbers for client communication, case management, appointment scheduling and business development in this affluent, highly educated market.
Data centers & cloud infrastructure
Data center operators, colocation providers, network infrastructure companies and managed service providers in Data Center Alley use local lines for facility operations, client coordination, vendor management and 24/7 technical support.
Real estate & development
Commercial real estate firms, residential brokers, property management companies and developers use local numbers for client inquiries, property showings, lease coordination and investment discussions in one of the nation's most expensive markets.
Why Choose 703 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 703 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 use the 703 area code?
When was the 703 area code created?
What is the relationship between 703 and 571 area codes?
Can I get SMS-capable numbers in area code 703?
Do I need to dial 10 digits for 703 numbers?
Is 703 a toll-free code?
How do I buy a 703 local phone number?
Where can I find official coverage or history for 703?
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