25 people were arrested in a summer crackdown on county lines drug dealing in Cardiff and the Vale of Glamorgan.
South Wales Police say organised crime officers in the region put 21 so-called drug lines out of business during the month-long operation in July.
One of the disrupted lines was run by Barry drug dealer Jack Thomas, who was jailed for two-and-a-half years after he pleaded guilty to offering crack cocaine via text messages.
He nicknamed his drug line as 'Fatz', which was tattooed on the fingers of his left hand.
The force says the organised crime team in Cardiff and the Vale seized a quarter of a kilogram of crack cocaine during the operation, along with £17,000 in cash.

Plans are under consideration to build over 200 houses in a sleepy Welsh village
Sanitary disposal bins introduced in men's public toilets following "Bins for Boys" campaign
Officers called to Dinas Powys Woods after young person enters the river
Vale Council signs off placemaking plan for Barry
Plans filed to use Blackweir Fields for a series of live events this summer
Plans filled for controversial housing development in Cowbridge
Cardiff Council pledges to work with new Welsh Government to tackle trouble-plagued hospital
RNLI issues Sully Island safety advice after first call out of the year to the Island
Morio Lounge on course to open at Nell's Point in May
Vale Council appoints specialist contractors to carry out road improvements
Three men jailed for their roles running a drugs line which supplied cocaine in Barry
Police appeal for witnesses after fatal Penarth Road collision
New Beach and country park facilities opened following major investement
RNLI centre at Barry Island welcomes lifeguards back to Whitmore Bay
Severn tidal lagoons progress