BANGKOK, THAILAND – Thai authorities have issued a nationwide warning as foreign-run call-center syndicates increasingly use rented homes and condominiums as hidden bases for large-scale financial scams. Officials say cooperation from local residents is now essential to expose these criminal operations before they target more victims abroad.
Four warning signs in local neighborhoods
According to Police Colonel Siriwat Deepor, spokesperson for the Royal Thai Police, investigators have observed a clear pattern in how these groups operate.
“THEY RENT APARTMENTS OR PRIVATE HOUSES TO STAY UNDER THE RADAR, BUT THEIR ROUTINES GIVE THEM AWAY,
” he said.
Authorities have identified four main indicators that a residential unit may be used for illicit call-center activities:
• Groups of foreigners—typically three to six people—with no visible employment or local engagement, who rent short-term and avoid contact with neighbors.
• Constant phone conversations in foreign languages such as Mandarin or English, often following repetitive, scripted dialogues that may be audible through walls.
• Curtains always drawn and windows darkened during daytime, while lights stay on at night. The gangs tend to work according to the time zones of their overseas victims.
• Large quantities of electronics, including extension cords, computers, telephones, and multiple internet routers, frequently serviced or replaced by delivery personnel—a sign of a fully equipped fraud operation.
New telecom rules to curb technological abuse
In a related move, the National Broadcasting and Telecommunications Commission (NBTC) has tightened control over SIM-box devices, which are often used by these criminal gangs to mask thousands of international calls. Trairat Viriyasirikul, the commission’s acting secretary-general, announced that owners of SIM boxes containing four or more SIM cards now require an official license.
Those who fail to register within 90 days could face up to five years in prison or fines of up to 100,000 baht (about €2,500). Regulators believe this step will disrupt the technical backbone that enables mass call operations to continue undetected.
Public urged to stay alert and report
Police officials emphasized that community awareness remains a crucial part of the crackdown. Residents who notice any of these suspicious patterns are encouraged to contact authorities immediately. Each report, they say, can make a tangible difference in preventing financial losses among innocent victims, many of whom live overseas.
Police General Kittharath Punpetch expressed concern over the scale of the damage caused by such schemes. “THESE FRAUD RINGS CAUSE ENORMOUS HARM,” he warned, noting that the combined efforts of police, regulators, and vigilant citizens could make Thailand a no-go zone for call-center fraudsters.
The government hopes that with stronger regulation, active surveillance, and public cooperation, the era of hidden call-center bunkers inside Thai housing estates may soon come to an end.