| General Information about Area Code 939 | |
|---|---|
| Country | United States |
| State / Province / Territory | Puerto Rico |
| Major City | Lajas |
| Time Zone | Atlantic (UTC-04:00) |
| Prefix | Primary City | County | Phone Type |
|---|---|---|---|
| 939-268 | Bayamon | Bayamon | Wireless |
| 939-329 | Maunabo | Maunabo | Landline |
| 939-452 | San Juan | San Juan | Wireless |
| 939-891 | Fajardo | Fajardo | Wireless |
| 939-910 | Maricao | Maricao | Landline |
| 939-261 | Bayamon | Bayamon | Wireless |
| 939-223 | Carolina | Carolina | Wireless |
| 939-270 | Bayamon | Bayamon | Wireless |
| 939-272 | Bayamon | Bayamon | Wireless |
| 939-271 | Bayamon | Bayamon | Wireless |
| 939-645 | San Juan | San Juan | Wireless |
| 939-630 | San Juan | San Juan | Wireless |
| 939-335 | Arroyo | Arroyo | Wireless |
| 939-777 | Bayamon | Bayamon | Wireless |
| 939-252 | Bayamon | Bayamon | Wireless |
| 939-403 | Bayamon | Bayamon | Wireless |
| 939-229 | San Juan | San Juan | Landline |
| 939-208 | Caguas | Caguas | Wireless |
| 939-417 | Bayamon | Bayamon | Wireless |
| 939-254 | Bayamon | Bayamon | Wireless |