The Zambia Information Technology on Tuesday afternoon raised CEC Liquid Telecom Headquarters to confiscate equipment allegedly used in phone tapping and other illegal activities.
Some equipment was also seized at another company firm during in the operation which saw ZICTA raid four other IT firms.
ZICTA Director of Support Service Mofya Chisala told a media briefing that the forensic experts from ZICTA and the Zambia Police Service will examine the equipment before taking appropriate action.
Mr Chisala said ZICTA is concerned that some IT companies are operating equipment that has not been standardised by ZICTA.
Other ZICTA sources that CEC Liquid Telecom was found in contravention of the law for allowing foreign companies to supply content on the Zambian market without following proper procedure and remitting prescribed tax.
The regulator said it was also targeting 17 other companies in the operation.