This is the 5349th most frequent Spanish word.
localizada
Located.
Here, 'localizada' is used as a past participle functioning as an adjective to describe the location of the house.
La casa está localizada al final de la calle.
The house is located at the end of the street.
In this sentence, 'localizada' (in its masculine form 'localizado') is part of the passive voice construction where the action of locating the problem is emphasized.
El problema fue rápidamente localizado por el equipo técnico.
The problem was quickly located by the technical team.
'Localizada' is again used in a passive construction, indicating the result of the action performed by the subject (here, the contacts).