Fibre-optic broadband services are set to be available in both Barry and Caerphilly in the near future, BT has announced.
The broadband provider has confirmed that work to introduce the services to a total of 30,000 homes and businesses across the two areas is close to completion.
Rolled out as part of BT's current £2.5 billion investment plans, the technology offers download speeds of up to 40Mb, although this could rise to 60Mb in the near future.
Caerphilly MP Wayne David said the introduction of the services in the town marked a "very important development" for the local area.
In addition, BT's Wales Director Anne Beynon said: "This is an exciting development for the Wales broadband story.
"Households and businesses in Caerphilly, switching to super-fast broadband, will soon be experiencing the internet as they have never experienced it before."
Details of the rollout of the technology have come after BT confirmed that fibre services are now available in parts of Edinburgh.