Get a 240 Area Code Number in Rockville, Maryland
Last updated: June 2026 · By the Salam Talk team
240 area code: quick facts
The 240 area code is located in Rockville, Maryland, serving Western Maryland / DC Suburbs (population 1.1M+). It is in the Eastern (ET) time zone.
- Location: Rockville, Maryland
- Region served: Western Maryland / DC Suburbs
- Population: 1.1M+
- Time zone: Eastern (ET)
- Code type: Overlay
- Introduced: 1997
Get a 240 area code number for your business in Rockville, Maryland. Salam Talk provides virtual local numbers covering Western Maryland / DC Suburbs (population 1.1M+) with instant setup, HD voice, SMS, IVR, call recording, and a full cloud PBX — no hardware required.
240 area code key information
| Area code | 240 |
|---|---|
| Primary city | Rockville, Maryland |
| County | Montgomery County |
| Region served | Western Maryland / DC Suburbs |
| Time zone | Eastern (ET) |
| In service since | 1997 |
| Code type | Overlay |
| Population served | 1.1M+ |
| Overlay area codes | None |
| Nearby Maryland area codes | 410 (Baltimore), 443 (Baltimore) |
History of the 240 area code
The 240 area code was first put into service in 1997, assigned to Rockville and the surrounding Western Maryland / DC Suburbs. It remains a primary geographic code for the Rockville area. Businesses use 240 numbers to keep a recognizable local presence in Rockville.
What is the 240 area code?
The 240 area code is a local telephone area code serving Rockville and the surrounding Western Maryland / DC Suburbs in Maryland. A 240 number signals an established local presence to customers in this market, which raises answer rates and trust compared with toll-free or out-of-area numbers.
The 240 area code covers Maryland's wealthiest counties directly bordering Washington DC. Montgomery County is home to the National Institutes of Health, NIST, and a concentration of federal contractors and biotech firms. A 240 number positions your business in one of the highest-income suburban markets in the country.
Where is the 240 area code located?
The 240 area code covers Rockville, Maryland, and the wider Western Maryland / DC Suburbs, serving a population of roughly 1.1M+. With Salam Talk you can hold a 240 number from anywhere in the world and route calls to any device.
Introduced in 1997, the 240 code is a overlay area code covering Montgomery and Frederick Counties.
Cities and neighborhoods in the 240 area
The 240 area code serves communities including Rockville, Gaithersburg, Bethesda, Silver Spring, Frederick.
- Rockville
- Gaithersburg
- Bethesda
- Silver Spring
- Frederick
Industries that rely on 240 numbers
Businesses across Government Contracting, Biotech, IT Services, Healthcare, Consulting, Finance in Rockville use 240 numbers to build local credibility, improve answer rates, and serve customers across Western Maryland / DC Suburbs.
Is the 240 area code a scam?
No — 240 is a legitimate geographic area code for Rockville, Maryland, and the vast majority of 240 calls are genuine local calls. However, scammers can "spoof" any area code, including 240, to make a call appear local. If you receive an unexpected 240 call that asks for personal information, payment, or account details, treat it with caution, do not share sensitive data, and verify the caller independently. A real 240 business number from Salam Talk is registered and fully trackable — the opposite of a spoofed number.
Why businesses use Rockville local numbers
Companies based outside Maryland use a 240 number to enter the Rockville market without a physical office. Sales teams calling Western Maryland / DC Suburbs prospects, e-commerce brands adding a local support line, and service firms expanding into Rockville all rely on local numbers to build credibility and improve pickup rates.
Benefits of a 240 business number
- Local presence and higher answer rates in Rockville and Western Maryland / DC Suburbs
- HD voice calling over VoIP with a 99.9% uptime SLA
- Business SMS and MMS text messaging
- IVR auto-attendant, call routing, and call queues
- Call recording and voicemail transcription
- Unlimited extensions and mobile apps (iOS & Android)
- Full cloud PBX with CRM and helpdesk integrations
240 vs other Maryland area codes
The 240 code is one of several serving Western Maryland / DC Suburbs. Choose 240 when you want to target Rockville specifically, and pair it with nearby area codes or a toll-free number for broader Maryland or national reach — all on the same Salam Talk platform.
How to get a 240 number
- Sign up for Salam Talk and choose Rockville / 240 from available inventory.
- Pick your number, then set up call routing, IVR, and voicemail in minutes.
- Start making and receiving calls and texts on any device — no hardware needed.
Why choose Salam Talk for your 240 number
Salam Talk delivers carrier-grade 240 numbers with HD voice, SMS, IVR, call recording, analytics, and a 99.9% uptime SLA, backed by transparent pricing and support. Port an existing 240 number for free, or add a new one alongside your current line.
240 area code FAQ
Where is the 240 area code located?
The 240 area code is located in Rockville, Maryland, covering Western Maryland / DC Suburbs. It is in the Eastern (ET) time zone.
Is the 240 area code a scam?
No. 240 is a legitimate geographic area code for Rockville, Maryland, and most 240 calls are genuine local calls. Scammers can spoof any area code to appear local, so be cautious with unexpected calls that request personal information or payment, and verify the caller independently.
What time zone is the 240 area code in?
The 240 area code is in the Eastern (ET) time zone.
What city uses the 240 area code?
The 240 area code primarily serves Rockville, Maryland, covering Western Maryland / DC Suburbs. It is a recognized local code for businesses and residents in this market.
Can I get a virtual 240 area code number for my business?
Yes. With Salam Talk you can get a virtual 240 area code phone number instantly — no physical office in Rockville required. Your number routes to any device, anywhere.
Can I use a 240 number for business calls and SMS?
Absolutely. Salam Talk 240 numbers support both voice calls and SMS text messaging, managed from one dashboard.
Can I forward calls from a 240 number to my mobile or team?
Yes. Call forwarding is included with every Salam Talk number — route calls to your cell, office, softphone, or across your team with ring groups and queues.
Does Salam Talk support VoIP for 240 numbers?
Yes. Salam Talk is a cloud VoIP provider. Your 240 number works over the internet on iOS, Android, Windows, Mac, and SIP-compatible desk phones.
How quickly can I set up a 240 number?
Setup takes under 5 minutes — sign up, choose your 240 number, configure routing, and you are live. No hardware or technician needed.
Start your free trial and get your 240 area code number today, or browse all local area codes.