This is the 5105th most frequent Russian word.
набрав
"Having gained," "having collected," or "having dialed" (depending on context).
The word "набрав" acts as a participle to indicate the manner or condition under which the main action occurs (dialing the number).
Набрав номер, он начал разговор с другом.
Having dialed the number, he started a conversation with his friend.
The word "набрав" indicates the completion of the preparatory action (drawing water) leading to the main action.
Набрав воды, он утолил жажду.
Having drawn water, he quenched his thirst.
The word "набрала" is used in its past tense feminine form from "набрать," describing the action of typing the message.