| Code | Name | Region |
|---|---|---|
| ARBTN | Barrio Batan | B |
| ARBMS | Barrio Marquez De Sobremonte | X |
| ARBEC | Beccar | B |
| ARBDE | Belen De Escobar | B |
| ARBVL | Bell Ville | X |
| ARBEL | Bella Vista | B |
| ARBVA | Bella Vista | T |
| ARBVC | Bella Vista | W |
| ARBVZ | Benavidez | B |
| ARANC | Ancon | B |
| ARADC | Andacollo | Q |
| ARAND | Andalgala | K |
| ARALO | Anelo | Q |
| ARANO | Angaco | J |
| ARASA | Apolinario Saravia | A |
| ARAPO | Apostoles | N |
| ARARN | Aranguren | E |
| ARARI | Arias | X |
| ARAVO | Aristobulo Del Valle | N |
| ARARG | Armstrong | S |
| ARACF | Arrecifes | B |
| ARAYO | Arroyito | X |
| ARASO | Arroyo Seco | |
| ARAST | Asturias | |
| ARATU | Atucha | B |
| ARAVE | Avellaneda | C |
| ARAVS | Avellaneda | S |
| ARAZU | Azul | B |
| ARBHI | Bahia Blanca | B |
| ARACS | Acassuso | B |
| ARAVD | Acevedo | B |
| ARAC5 | Acheral | T |
| ARAMA | Adelia Maria | X |
| ARGEO | Agrelo | M |
| ARAGS | Aguilares | T |
| ARAIM | Aimogasta | F |
| ARALN | Albardon | J |
| ARALI | Alberti | B |
| ARAEA | Aldea Escolar | U |
| ARADS | Alderetes | T |
| ARALL | Allen | R |
| ARALE | Almafuerte | X |
| ARALS | Alsina | |
| ARASL | Alto De Sierra | J |
| ARARR | Alto Rio Senguerr | U |
| ARLTV | Alto Verde | M |
| ARALZ | Alvarez | S |
| ARAVR | Alvear | S |
| ARANA | Anatuya | G |
| AR |