Exhibit 99.1 IDT Corporation Reports Fourth Quarter and Fiscal Year 2025 Results 4Q25 Gross Profit +12% to $114 million; FY 2025 Gross Profit +14$446 million 4Q25 Income from Operations +9% to $22 million; Adjusted EBITDA +33$33 million FY 2025 Income from Operations +55% to $100 million; Adjusted EBITDA +43$129 million, an IDT record 4Q25 EPS of $0.67 and Non-GAAP EPS of$0.76; FY 2025 EPS of $3.01 and Non-GAAP EPS of$3.19 NEWARK, NJ — September 29, 2025: IDT Corporation (NYSE: IDT), a glob ...