Tanzania, July 13 -- Dar es Salaam. Some dishonest mobile phone SIM registration agents are facilitating phone fraud by secretly registering SIM cards and selling them to criminal networks, this paper understands.

Investigations by The Citizen's sister publication, Mwananchi has found that the fraud network, commonly known as Halohalo, involves not only scammers but also rogue agents who illegally register SIM cards using customers' personal information without their knowledge.

The findings mirror a Morogoro Regional Police operation conducted in Kilombero District on March 5, 2026, in which officers seized 198 SIM cards allegedly linked to fraud.

Of these, 88 were recovered from a single registration agent and had been registered unde...