Exhibit 21.01
| Domestic Subsidiaries | ||
| IDT America, Corp. (New Jersey) | IDT Telecom, Inc. (Delaware) | |
| IDT Domestic Telecom, Inc. (Delaware) | Intergrated Online Security, Inc. (Delaware) | |
| IDT Financial Services, LLC (Delaware) | Net2Phone, Inc. (Delaware) | |
| IDT Payment Services of New York, LLC (Delaware) | Net2Phone Global Services, LLC (Delaware) | |
| IDT Payment Services, Inc. (Delaware) | National Retail Solutions, Inc. (Delaware) | |
| Foreign Subsidiaries | ||
| Name | Country of Formation | |
| IDT Corporation de Argentina S.A. | Argentina | |
| IDT Telecom Asia Pacific (Australia) PTY. LTD. | Australia | |
| IDT Technologies OOO | Belarus | |
| IDT Brasil Telecomunicaçơes Ltda | Brazil | |
| IDT Brazil Limitada | Brazil | |
| IDT Telecom Canada Corp. | Canada | |
| Versature Corp. | Canada | |
| IDT Germany GmbH | Germany | |
| IDT Financial Services Limited | Gibraltar | |
| IDT Telecom Asia Pacific Limited | Hong Kong | |
| IDT Italia S.R.L. | Italy | |
| DirectTel Dutch Holdings B.V. | Netherlands | |
| DYP C.V. | Netherlands | |
| Elmion Netherlands B.V. | Netherlands | |
| IDT Dutch Holdings B.V. | Netherlands | |
| IDT Netherlands B.V. | Netherlands | |
| MJP C.V. | Netherlands | |
| Pryd Dutch Holdings B.V. | Netherlands | |
| STA Dutch Holdings B.V. | Netherlands | |
| Strategic Dutch Holdings B.V. | Netherlands | |
| IDT Spain S.L. | Spain | |
| IDT Global Limited | United Kingdom | |
| IDT Retail Europe Limited | United Kingdom | |