| 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 |
|---|---|---|---|
| 939-218 | San Juan | San Juan | Wireless |
| 939-226 | San Juan | San Juan | Wireless |
| 939-410 | Bayamon | Bayamon | Wireless |
| 939-275 | Bayamon | Bayamon | Wireless |
| 939-273 | Bayamon | Bayamon | Wireless |
| 939-280 | Bayamon | Bayamon | Wireless |
| 939-732 | Arroyo | Arroyo | Wireless |
| 939-731 | Juana Diaz | Juana Diaz | Landline |
| 939-202 | Toa Baja | Toa Baja | Landline |
| 939-277 | Bayamon | Bayamon | Wireless |
| 939-297 | Arecibo | Arecibo | Wireless |
| 939-697 | Rincon | Rincon | Landline |
| 939-282 | Bayamon | Bayamon | Wireless |
| 939-437 | Trujillo Alto | Trujillo Alto | Landline |
| 939-250 | Bayamon | Bayamon | Wireless |
| 939-401 | Bayamon | Bayamon | Wireless |
| 939-279 | Bayamon | Bayamon | Wireless |
| 939-407 | Bayamon | Bayamon | Wireless |
| 939-639 | San Juan | San Juan | Wireless |
| 939-253 | Bayamon | Bayamon | Wireless |