Which VHF call is typically associated with the least level of urgency?

The call that typically indicates the least level of urgency is the Securite call. This type of call is used to convey important navigational information or warnings to all vessels in the area, such as the presence of hazards, weather conditions, or other critical safety notices. It serves to inform mariners and is essential for maintaining safety on the water, but it does not indicate that immediate assistance is required.

In contrast, a Mayday call is reserved for situations where there is a grave and imminent danger to life or vessel, while a Pan-pan call signifies urgency regarding a situation that is not immediately dangerous but still requires attention. Emergency calls also signal critical situations but can refer to specific incidents that need urgent response. Thus, Securite represents a lower level of urgency compared to the other types of calls.