939 Area Code — Scam Calls, Location & Who's Calling
Area code 939 serves Puerto Rico in the Atlantic time zone, in service since 2001. The FCC has 68 unwanted-call complaints against 65 different 939 numbers on record. Look up the exact number that called you below.
Most-reported 939 numbers
Ranked by FCC unwanted-call complaints. Click a number for its full report.
939 unwanted-call complaints, last 12 months
Monthly FCC complaint volume against 939 numbers. Spikes usually mark an active robocall campaign cycling through the code.
Carriers operating in 939
Carriers assigned to 939 prefixes that visitors have looked up so far — resolved from official NPA-NXX assignment records.
- LIBERTY MOBILE PUERTO RICO INC.Wireless · 1 prefix
- PUERTO RICO TELCO DBA CLARO PUERTO RICOWireless · 1 prefix
- SUNCOM DBA T-MOBILE USAWireless · 1 prefix
About area code 939
- Serves
- Puerto Rico
- Time zone
- Atlantic
- In service since
- 2001-09-15
- Overlay
- Yes — 10-digit dialing
Source: NANPA numbering records, refreshed weekly.
Spam calls from 939? What to know
Seeing repeated missed calls from 939 numbers you don't recognize is the classic signature of neighbor-spoofing robocall campaigns. The caller isn't necessarily in Puerto Rico — spoofing software displays whatever digits the campaign chooses. Never call unknown numbers back; look them up first, and report unwanted calls to the FCC to build the public record.
Area code 939 FAQs
Where is area code 939?
Area code 939 serves Puerto Rico, in the Atlantic time zone. It is part of an overlay complex, so multiple area codes serve the same territory and 10-digit dialing is required. It has been in service since 2001.
Why do I keep getting calls from 939 numbers?
Robocallers use "neighbor spoofing" — displaying a number with a local area code to make you more likely to answer. A call showing area code 939 may not originate from Puerto Rico at all. Look up the full 10-digit number on this site to see its complaint history before calling back.
Are 939 numbers safe to call back?
Area codes themselves are neither safe nor unsafe — 939 contains millions of legitimate lines alongside any spoofed or spam numbers. The FCC has logged 68 unwanted-call complaints against 65 distinct 939 numbers in our current data window. Check the specific number's report page before returning a missed call.