Just half of households here now have a landline, according to a new survey for the telecoms regulator Comreg.
The research also found that mobile data caps are a problem, with a third of consumers here saying they have received a text message in relation to reaching their data cap.
This is more common among younger customers, with almost half of 18-34 year olds receiving this message.
The Ireland Communicates Survey 2017 found large differences in information and communication technology service usage exist across the population.
This is most evident for fixed broadband services, the research found, with almost three-quarters in urban areas having a broadband service in their home compared with 58% of those living in rural areas.
The study, carried out by Ipsos MRBI among 1,519 respondents during November and December last year, found generally high satisfaction with service providers.
This coupled with low awareness of price benefits from switching means that intention to switch providers remains low.
97% of people now have a mobile phone, rising to 100% among 18-34 year olds.
While calls and SMS remain the main usage for mobile devices, 60% of users use their phone to send and receive instant messages via apps.
The survey found a more or less even split between pre and post pay mobile services.
64% of people have been with same mobile provider for more than three years and the medium monthly spend on mobile phone services is €25.
There were also high levels of awareness of the removal of roaming charges, with many having used this facility since it was introduced
But while mobile service usage is strong, the survey found that just 67% use a TV service.
Half of households in rural areas are using Saorview, compared with a quarter in urban areas.
Over two out of every five households say they use Netflix.
95% of those with streaming services say they still watch live TV services, but just over half say the amount of time they spend watching live TV has decreased.
Just over half of people now have two or more services bundled and almost three quarters of those now have three or more services bundled. €65 a month is the median spend on bundles.
Almost 2 out of every 5 households with a bundle switched providers when subscribing to the bundle.
Over two-thirds of those selecting a bundle did so for price reasons.
Newer technologies such as instant messaging apps and streaming services are more likely to be supplementing consumer usage of traditional services (SMS and live TV) rather than replacing them, the researchers found.
Consumers expect their usage of "smart" technologies to increase over the coming few years.
While less than a third currently have a Smart TV, the majority expect that they will own one in five years time.
Similar anticipated increases are evident for smart heating and other devices.
Just 69% use fixed line broadband with the median spend on such services €40 a month.
Browsing the internet (99%) is still the most utilised service, followed by email (85%) and internet shopping (77%).
The vast majority of customers are satisfied with their fixed broadband supplier, although satisfaction with Virgin Media is lower than that for other providers.
Of those without a landline, 58% say it is because they wouldn't use it or aren't interested in having one.
Half of households indicate that they have their landline service with Eir up slightly on the last survey in 2015.
Usage of Eir is more common among households that do not bundle their landline service with other service.