The 23-year-old wing-back has previously represented Saint Lucia on two occasions, having been born in the capital city of Castries before moving to England at the age of six.
He has made a flying start to life at Colls, notching two goals so far across his four appearances, including vital late goals against Basford and Guisborough.
Saint Lucia are an Eastern Caribbean nation who compete as members of CONCACAF, the continental governing body for North American, Central American and Caribbean football, and share a Nations League group with Guadalope, Saint Kitts & Nevis and Sint Maarten.
Over the course of this seasons competition, they will be playing for promotion into the top division of the CONCACAF Nations League, where they could face the likes of the United States, Trinidad & Tobago, Canada or Costa Rica.
With this international call, Solomon-Davies enters the history books in becoming the first player to receive a senior international football call-up while representing Atherton.
He could play in this weekend’s fixtures against Sint Maarten (Thursday) and St Kitts & Nevis (Monday).
A spokesman for the club said: “Everybody at the club is proud to congratulate Josh on his achievement, and we all look forward to following this week’s proceedings.”