Area Code 516: Get a Hempstead Phone Number

516 · Hempstead

What is the area code for Hempstead?

The area code for Hempstead, New York is 516, with overlay code 363 sharing the same geographic footprint. The 516 area code is a North American Numbering Plan geographic code assigned in 1947, covering the Nassau County Long Island region. It serves approximately 1,400,000 residents on the Eastern Time (ET) (UTC-5 / UTC-4 DST).

The 516 area code has 782 assigned central-office prefixes (NXX codes, the three digits after the area code) across 15 rate centers, with numbers allocated to roughly 54 carriers.

At 782 of the ~792 usable central-office prefixes, the 516 area code has about 99% of its numbering capacity assigned, and that near-exhaustion is part of why overlay code 363 was added to the region. See how 516 compares in our NXX prefix allocation analysis across 338 US area codes. (Prefix data: localcallingguide.com / NANPA, 2026.)

Where is area code 516? Location and map area

Area code 516 is located in New York, the United States. Its coverage area centers on Hempstead and spans the Nassau County Long Island region. If you received a call from a 516 number, the caller's number was assigned in this area — though with number porting and virtual numbers, the person may be calling from anywhere.

The 516 location sits in Eastern Time (ET), so local business hours run roughly 9 a.m.–5 p.m. ET. Neighboring New York area codes include 212, 315, 332.

All Hempstead area codes

Hempstead is served by 2 area codes across the metro area. 516 is the original 1947 code; the others were added as overlays or for surrounding suburbs.

• 363 — Hempstead — assigned 2023
• 516 (current page) — Overlay on the same metro, assigned 1947

Cities served by the 516 area code

The 516 area code covers 5 major cities and towns across the Nassau County Long Island region (NY):

Businesses across Hempstead and surrounding cities use 516 numbers to project local presence and lift call answer rates. Industry studies of local presence dialing consistently report answer-rate gains of 20–40% over toll-free or out-of-area numbers — a caller ID that matches the recipient's region looks familiar and gets picked up.

516 area code time zone and business hours

The 516 area code is in the Eastern Time (ET) zone (UTC-5 / UTC-4 DST). Standard business hours in 516 run 9 AM to 5 PM ET.

If you're calling into 516 from a different time zone, factor in the offset. For example, an Eastern Time business calling 516 at 9 AM ET reaches Hempstead at local time — likely outside standard business hours.

History of the 516 area code

The 516 area code was one of the original 86 area codes assigned in 1947 when the North American Numbering Plan was first deployed. As Hempstead grew and number demand increased, overlay code 363 was added to serve the same geographic region — a common solution that avoids forcing existing subscribers to change their numbers.

• 1947 516 entered service (one of the 86 original NANP area codes)
• 2023 363 added to serve the same region

Is the 516 area code safe? Spam and scam calls

516 is a legitimate geographic area code for Hempstead — it is not a scam code or a premium-rate prefix, and a call from a 516 number is most likely a genuine local caller. The risk is not the area code itself but a tactic called neighbor spoofing: scammers fake their caller ID so an unwanted call appears to come from your own area code, because people answer familiar numbers more readily.

If you get an unexpected 516 call, a few signals point to a likely scam — a pre-recorded message, urgent pressure to act now, a demand for payment by gift card or wire transfer, or anyone asking for passwords, Social Security, or account numbers. Let suspicious calls go to voicemail, never share personal information, and report fraud to the FTC at reportfraud.ftc.gov.

The FCC consumer guide on spoofing explains your rights under the Truth in Caller ID Act. A real Hempstead business will leave a clear voicemail and will not pressure you.

US carriers verify caller ID with the STIR/SHAKEN framework, which flags many spoofed numbers as "Spam Likely" before they ring. DialPhone 516 numbers are registered for STIR/SHAKEN attestation, so calls from your business are verified as genuine and reach customers without a false spam label. See the DialPhone guide to VoIP security for more.

Why get a 516 area code number for your business?

Getting a 516 number gives your business three measurable advantages over a toll-free or out-of-area number:

1. Local trust signal. Customers in Hempstead recognize 516 as their home area code. Caller ID matching builds immediate credibility for service businesses, sales outreach, and patient communication.
2. Higher answer rate. Calls from a familiar local area code are answered far more often than unknown or toll-free numbers — industry measurements of local presence dialing put the lift at 20–40%, which matters most for outbound sales, appointment confirmations, and time-sensitive service callbacks.
3. Targeted marketing. Businesses serving Hempstead and the broader Nassau County Long Island can advertise a local number across print, radio, billboards, and digital channels for higher conversion than a national 800 number.

For businesses in Hempstead and surrounding cities, top industries that benefit from local 516 presence include Finance, Media, and Legal. DialPhone's AI receptionist is available for every 516 number — never miss a call, even after standard business hours.

How to get a 516 area code number

Setting up a 516 business number with DialPhone takes under 10 minutes:

1. Sign up for a DialPhone plan. Choose any plan starting at $24/user/month. Free 14-day trial, no credit card required.
2. Search available 516 numbers. Filter the DialPhone number inventory by area code, city, or pattern.
3. Choose your number and configure. Assign your new 516 number to a user or team, set up call routing, voicemail, AI receptionist, and business SMS.
4. Port your existing number (optional). Already have a 516 number? Free number porting in 2 to 5 business days with zero service interruption.

New to local numbers? The complete guide to getting a local phone number covers choosing the right area code, porting an existing line, and avoiding spam flags.

516 area code overlay codes

The Nassau County Long Island region is served by multiple overlay area codes:

Area Code	Coverage
516	Primary area code for Nassau County Long Island, assigned 1947
363	Overlay — same geography (assigned 2023)

All overlay codes serve the same Hempstead region. New subscribers may be assigned any available code; existing numbers retain their original prefix.

AI receptionist for 516 area code businesses

Every DialPhone 516 number includes optional AI receptionist coverage, available 24/7. The AI handles calls when your team is unavailable — answering common questions, booking appointments, routing urgent callers to on-call staff, and capturing voicemail with full transcription and intent tagging.

For businesses in Hempstead that handle high call volume, run extended hours, or need bilingual support (especially valuable in multilingual metros like Hempstead), the AI receptionist reduces voicemail backlog and improves first-call resolution.

All area codes in New York

New York has 16 active geographic area codes. The 516 area code is part of the same numbering plan as the codes listed below — calls between them are typically local within the state, depending on the carrier.

Nearby area codes

Related area codes in New York and the Eastern Time (ET) region:

• 212 area code — New York City, New York
• 315 area code — Syracuse, New York
• 332 area code — New York City, New York
• 347 area code — New York City, New York
• 518 area code — Albany, New York
• 607 area code — Binghamton, New York

All New York area codes → · Browse all US area codes →

More area codes: ← 515 Des Moines · 517 Lansing →

How this page is verified

DialPhone re-verifies every area code page every 90 days. Area code geography, timezone, and overlay data come from the official North American Numbering Plan Administration (NANPA) database. Pricing reflects the published DialPhone plan tiers — see the pricing page for current details. Number availability varies; check the DialPhone signup flow for live inventory in the 516 region.

What to know before getting a 516 number

• Number availability is finite. Popular Hempstead area codes can be inventory-constrained — request specific vanity patterns early.
• Porting timing varies. Most 516 ports complete in 2-5 business days; complex multi-line legacy contracts can take 7-10.
• HIPAA tier required for healthcare. The Core $24 plan doesn't include a BAA — healthcare users need Advanced ($34) or above.