| 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 |
|---|---|---|---|
| 939-338 | San Juan | San Juan | Landline |
| 939-201 | Adjuntas | Adjuntas | Landline |
| 939-267 | Bayamon | Bayamon | Wireless |
| 939-247 | Bayamon | Bayamon | Wireless |
| 939-285 | Bayamon | Bayamon | Wireless |
| 939-259 | Bayamon | Bayamon | Wireless |
| 939-227 | Fort Buchanan | Guaynabo | Wireless |
| 939-416 | Bayamon | Bayamon | Wireless |
| 939-243 | Bayamon | Bayamon | Wireless |
| 939-717 | San Juan | San Juan | Wireless |
| 939-214 | Lajas | Lajas | Landline |
| 939-500 | Ponce | Ponce | Landline |
| 939-307 | Arroyo | Arroyo | Landline |
| 939-865 | Mayaguez | Mayaguez | Wireless |
| 939-334 | Bayamon | Bayamon | Wireless |
| 939-244 | Bayamon | Bayamon | Wireless |
| 939-207 | San Juan | San Juan | Wireless |
| 939-276 | Bayamon | Bayamon | Wireless |
| 939-644 | San Juan | San Juan | Wireless |
| 939-263 | Bayamon | Bayamon | Wireless |