Telecomunicaciones de Guatemala, S.A. (TELGUA) is the dominant firm with 89% of the market. Further details can be consulted in this link: https://sit.gob.gt/download/832/2020-boletin-estadistico-estadisticas-de-telefonia/1zbnLjC-IE8CrWfQCMA9Zzp-gZm2vdq6U/Bolet%C3%ADn%20Estad%C3%ADstico%20%202do%20Semestre%202020.pdf