787 Area Code: Puerto Rico Phone Numbers

What is the area code for San Juan?

The area code for San Juan, Puerto Rico is 787, with overlay code 939 sharing the same geographic footprint. The 787 area code is a North American Numbering Plan geographic code assigned in 1996, covering the Puerto Rico region. It serves approximately 3,200,000 residents on the Eastern Time (ET) (UTC-4).

The 787 area code has 777 assigned central-office prefixes (NXX codes, the three digits after the area code) across 84 rate centers, with numbers allocated to roughly 21 carriers.

At 777 of the ~792 usable central-office prefixes, the 787 area code has about 98% of its numbering capacity assigned, and that near-exhaustion is part of why overlay code 939 was added to the region. See how 787 compares in our NXX prefix allocation analysis across 338 US area codes. (Prefix data: localcallingguide.com / NANPA, 2026.)

Where is area code 787? Location and map area

Area code 787 is located in Puerto Rico, the United States. Its coverage area centers on San Juan and spans the Puerto Rico region. If you received a call from a 787 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 787 location sits in Eastern Time (ET), so local business hours run roughly 9 a.m.–5 p.m. ET. Neighboring Puerto Rico area codes include 939, 201, 202.

All San Juan area codes

San Juan is served by 2 area codes across the metro area. 787 is the 1996 addition; the others were added as overlays or for surrounding suburbs.

• 787 (current page) — Overlay on the same metro, assigned 1996
• 939 — San Juan — assigned 2001

Cities served by the 787 area code

The 787 area code covers 5 major cities and towns across the Puerto Rico region (PR):

Businesses across San Juan and surrounding cities use 787 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.

787 area code time zone and business hours

The 787 area code is in the Eastern Time (ET) zone (UTC-4). Standard business hours in 787 run 9 AM to 5 PM ET.

If you're calling into 787 from a different time zone, factor in the offset. For example, an Eastern Time business calling 787 at 9 AM ET reaches San Juan at local time — likely outside standard business hours.

History of the 787 area code

The 787 area code was introduced in 1996 when the North American Numbering Plan was first deployed. As San Juan grew and number demand increased, overlay code 939 was added to serve the same geographic region — a common solution that avoids forcing existing subscribers to change their numbers.

• 1996 787 entered service
• 2001 939 added to serve the same region

Is the 787 area code safe? Spam and scam calls

787 is a legitimate geographic area code for San Juan — it is not a scam code or a premium-rate prefix, and a call from a 787 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 787 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 San Juan 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 787 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 787 area code number for your business?

Getting a 787 number gives your business three measurable advantages over a toll-free or out-of-area number:

1. Local trust signal. Customers in San Juan recognize 787 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 San Juan and the broader Puerto Rico can advertise a local number across print, radio, billboards, and digital channels for higher conversion than a national 800 number.

For businesses in San Juan and surrounding cities, top industries that benefit from local 787 presence include Professional Services, Healthcare, and Retail. DialPhone's AI receptionist is available for every 787 number — never miss a call, even after standard business hours.

How to get a 787 area code number

Setting up a 787 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 787 numbers. Filter the DialPhone number inventory by area code, city, or pattern.
3. Choose your number and configure. Assign your new 787 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 787 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.

787 area code overlay codes

The Puerto Rico region is served by multiple overlay area codes:

Area Code	Coverage
787	Primary area code for Puerto Rico, assigned 1996
939	Overlay — same geography (assigned 2001)

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

AI receptionist for 787 area code businesses

Every DialPhone 787 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 San Juan that handle high call volume, run extended hours, or need bilingual support (especially valuable in service areas with diverse customer bases), the AI receptionist reduces voicemail backlog and improves first-call resolution.

All area codes in Puerto Rico

Puerto Rico has 2 active geographic area codes. The 787 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 Puerto Rico and the Eastern Time (ET) region:

• 939 area code — San Juan, Puerto Rico
• 201 area code — Jersey City, New Jersey
• 202 area code — Washington, District of Columbia
• 203 area code — Bridgeport, Connecticut
• 207 area code — Portland, Maine
• 212 area code — New York City, New York

All Puerto Rico area codes → · Browse all US area codes →

More area codes: ← 786 Miami · 801 Salt Lake City →

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 787 region.

What to know before getting a 787 number

• Number availability is finite. Popular San Juan area codes can be inventory-constrained — request specific vanity patterns early.
• Porting timing varies. Most 787 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.