Phones 4u staff will find out today whether they will lose their jobs after 362 store closures were announced.
Vodafone and EE will buy some stores but nearly 1,700 jobs will be lost.
The 97 staff at 19 stores in Sussex will find out their fate later today.
Phones 4u went into administration last week after network operator EE decided not to renew its contract.
Phones 4u had an annual turnover of £1 billion, with more than 700 stores and a total of 5,596 employees.
But the firm collapsed as EE and Vodafone pulled out of long-standing deals to sell devices through the retailer.
Yesterday, EE said it would buy 58 Phones 4u stores in a deal saving more than 350 jobs.
The agreement with administrator PwC comes after Vodafone said on Friday it would buy another 140 stores, safeguarding 887 jobs.
Dixons Carphone has already said it will take on the 800 staff who worked at 160 Phones 4u sites within Currys/PC World stores.
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