Teams
Ferro Carril Oeste
Gimnasia Jujuy
Guillermo Brown
All Boys
Independiente Rivadavia
Nueva Chicago
Chacarita Juniors
Almagro
CA Brown de Adrogué
Villa Dalmine
Instituto AC Córdoba
Santamarina Tandil
San Martín de Tucumán
Quilmes
Atlético de Rafaela
Club Atletico Temperley
Defensores de Belgrano
San Martín de San Juan
CA Estudiantes Caseros
CA Atlanta
Deportivo Riestra
Almirante Brown
Los Andes
Juventud Unida G.
Boca Unidos
CA San Telmo
Tristan Suarez
CSD Flandria
Patronato Paraná
Central Cordoba
Sportivo Estudiantes
CA Douglas Haig
CA Aldosivi
Deportivo Madryn
Belgrano
Crucero del Norte
Defensores Unidos
Racing de Córdoba
Barracas Central
Argentinos Jrs
CA Tigre
Platense
Colón
Talleres Remedios
CA San Miguel
Sacachispas
Olimpo B Blanca
Huracán
Unión de Santa Fe
CA Independiente
Wikipedia - Primera Nacional
Primera Nacional (usually called simply Nacional B, in English "National B Division", and known as Primera B Nacional until the 2019–20 season) is the second division of the Argentine football league system. The competition is made up of 38 teams.
It is played by teams from all over the country. Clubs from Buenos Aires surroundings, as well as some from Santa Fe Province, are promoted from or relegated to the Primera B Metropolitana ("Metropolitan B Division") while for teams from the other provinces the Torneo Federal A ("Federal A Tournament") is the next level down. In Argentine football, Primera Nacional is the second-highest league, and from it, the three best teams are automatically promoted to Primera División.
Primera B Nacional games are often transmitted to Argentina and abroad on television by TyC Sports.
History
It was created in 1986 to integrate unaffiliated clubs into the Argentine football structure, which until then had only participated in Nacional championships of Argentina's First Division tournament. It brought together teams from the old Primera B (until then, the second division) and regional leagues from several Argentine provinces.
After the 1985–86 season, the Primera B Nacional became the second hierarchical league in Argentina's professional football, after the Primera División, and it is above the Torneo Federal A and the Primera B Metropolitana, the last one started to act as a third division for the teams directly affiliated to AFA.
Beginning in the 2019–20 season, the name was changed dropping the B to simply be known as Primera Nacional.