Exhibit 21.01
In accordance with SEC rules, the following is a list of IDT Corporation’s (IDT) subsidiaries as of July 31, 2025, other than those subsidiaries, considered in the aggregate as a single subsidiary, that would not constitute a “significant subsidiary” as of July 31, 2025.
This list of subsidiaries will change from year-to-year as a result of changes in IDT and its subsidiaries’ results of operations and financial condition, legal entity consolidations and any sales and other dispositions of IDT’s subsidiaries. Accordingly, this list is not representative of the total number of subsidiaries that IDT may have at any given time.
| Domestic Subsidiaries | ||
| IDT America, Corp. (NJ) | IDT Payment Services, Inc*. (DE) | |
| IDT Domestic Telecom, Inc. (DE) | IDT Telecom, Inc. (DE) | |
| IDT Domestic-Union, LLC (DE) | Net2Phone, Inc. (DE) | |
| IDT Financial Services, LLC (DE) | Net2Phone Global Services, LLC (DE) | |
| IDT International Telecom, Inc. (DE) | National Retail Solutions, Inc. (DE) | |
| IDT Payment Services of New York, LLC (DE) | ||
*IDT Payment Services, Inc. has d/b/a - Boss Revolutions Money Transfers and Boss Money
| Foreign Subsidiaries | ||
| Name | Country | |
| IDT Corporation de Argentina S.A. | Argentina | |
| IDT Telecom Canada Corp. | Canada | |
| Versature Communications Corp.* | Canada | |
| IDT Guatemala S.A. | Guatemala | |
| IDT Financial Services Limited | Gibraltar | |
| IDT Telecom Asia Pacific Limited | Hong Kong | |
| Elmion Netherlands B.V. | Netherlands | |
| IDT Dutch Holdings B.V. | Netherlands | |
| IDT Global Limited | United Kingdom | |
| IDT Retail Europe Limited | United Kingdom | |
*Versature Communications Corp. has registered Net2Phone Canada as a Trade Name |