Reach Long Island's Suffolk County with a 631 virtual number — Northrop Grumman's Bethpage historic aerospace campus, Brookhaven National Laboratory's $650M DOE research mission, and Stony Brook University and Medicine's 30,000-person academic and clinical community. Activate instantly.
Area code 631 covers Long Island's Suffolk County — Hauppauge, Ronkonkoma, Brentwood, Patchogue, Riverhead, and the Hamptons. Northrop Grumman's Bethpage campus is the historic site where the Apollo Lunar Module was designed and built — today it remains a leading defence and aerospace centre. Brookhaven National Laboratory in Upton is a US Department of Energy national lab with a $650M+ annual research budget and the world's first relativistic heavy-ion collider. Stony Brook University and its Stony Brook Medicine health system are Suffolk County's largest employers. The Hauppauge Industrial Park is one of the largest industrial parks in the eastern US, home to 1,300+ companies. A 631 number is the credential for Long Island's defence, life sciences, and advanced manufacturing economy.
From New York City to Albany 631 covers the Northeast region of New York.
Northrop Grumman's Bethpage campus is a major defence and aerospace centre. A 631 number establishes your presence with the Long Island defence contractor community centred on this historic campus.
Brookhaven National Lab has a $650M+ annual budget and sources widely. Research services, equipment, and IT vendors need a 631 number to be credible with DOE's largest East Coast national laboratory.
Stony Brook University and Stony Brook Medicine together employ 30,000+. Healthcare and research vendors serving Suffolk County need a 631 number to access SUNY's flagship Long Island campus.
631 was created in 2001 from the 516 split and covers all of Suffolk County — the code for Long Island's defence, life sciences, and industrial economy from Hauppauge to Montauk.
Every 631 number includes fourteen professional tools for Long Island Suffolk County's defence-and-research economy — compliance call recording for Northrop Grumman Bethpage's vendor requirements, IVR for Brookhaven National Lab's research community, and analytics for Stony Brook's academic and medical corridor and the Hauppauge Industrial Park's manufacturing market.
Redirect every call to any device — mobile, desk phone, or laptop. Set rules by time, caller, or team.
Four steps. Five minutes. No technical setup, no hardware required.
Browse 631 numbers by Hauppauge, Ronkonkoma, Patchogue, Riverhead, or Brentwood prefix — or port your existing Long Island Suffolk number for free.
Select a plan for your Suffolk County team — Northrop Grumman Bethpage vendor, Brookhaven National Lab partner, or Stony Brook University supplier, every feature included.
Configure your 631 line with Eastern Time routing for Northrop Grumman's defence programme schedule and Stony Brook Medicine's clinical calendar.
Take 631 calls anywhere — Northrop Grumman's Bethpage procurement community, Brookhaven's DOE research network, and Stony Brook University's Long Island research corridor all see a trusted local number.
Pick a region, then select any state to see every active area code with city coverage, time zones, and a number-picker shortcut.
Everything you need to know before getting a virtual 631 phone number. Our team is one click away for anything else.
Yes — porting your existing 631 number to TKOS is completely free. Most New York port-ins complete in 5–10 business days with zero downtime, and your 631 calls keep routing normally throughout the transition.
Yes. A single TKOS account supports unlimited 631 numbers. Ideal for teams where each sales rep or department needs a dedicated NY local number without managing separate accounts.
The 631 area code was introduced in 1995 and serves the Northeast region of New York.
Yes. The TKOS mobile app lets you call, text, and manage your 631 number from any iOS or Android device. Your 631 number appears on all outbound calls — no SIM swap needed.
Yes. TKOS supports simultaneous ring, call queuing, and user extensions on every 631 number — so your whole team can share one number while each member handles calls from their own device.
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