Ribbon Communications Inc. 10-K

Item 2. Properties ​ We continue to consolidate and reduce the number of facilities we operate worldwide. As of December 31, 2024, we maintained the following principal facilities: ​ ​ ​ ​ ​ ​ Location Location Lease expiration Plano, Texas (a) Corporate headquarters, sales, marketing, research and development/engineering, customer support, general and administrative September 2032 Westford, Massachusetts (a) Research and development, customer support, general and administrative August 2028 Ottawa, Canada (b) Research and development/engineering, customer support, general and administrative December 2029 Petah Tikva, Israel (Main Campus) (c)(d) Research and development/engineering, sales and marketing, customer support, general and administrative ​ March 2025 Petah Tikva, Israel (Kshatot) (c)(d) Service, research and development/engineering, supply chain January 2025 Bangalore, India (Delta) Research and development/engineering, customer support, general and administrative December 2034 Bangalore, India (Alpha) Research and development/engineering, customer support, general and administrative December 2028 (a) A portion of this facility was not in use at December 31, 2024 and is being marketed for sublease. (b) A portion of this facility was not in use at December 31, 2024 and some of the unused space is being subleased. (c) A portion of this facility was not in use at December 31, 2024. (d) We plan to consolidate and relocate our office space in Israel. A new lease was signed in 2023 for a building under construction in Petah Tikva. ​ We also lease smaller spaces that are each under 50,000 square feet for our staff in various countries around the world in sales, marketing, R&D/engineering, customer services and support, as well as for warehouse purposes. We believe our remaining facilities will be adequate for our current needs and that suitable additional space will be available as needed.