About Us

Altiostar, a Rakuten Symphony Company, provides 4G and 5G open virtualized RAN (Open vRAN) software that supports open interfaces and virtualizes the baseband unit to build a disaggregated multi-vendor, web-scale, cloud-native mobile network. Operators can add intelligence, quickly adapt the network for different services and automate operations to rapidly scale the network and reduce Total Cost of Ownership (TCO). Altiostar collaborates with a growing ecosystem of partners to support a diverse Open RAN supply chain. The Altiostar O-RAN compliant Open vRAN solution has been deployed globally, including the world’s first cloud-native commercial-scale mobile network with Rakuten Mobile in Japan.


Our objective is to allow mobile network operators to deploy and expand their wireless networks quickly and efficiently in the most feature-rich, future-proof and cost-effective way.

Altiostar who we are

  • Bringing web-scale architecture to mobile networks
  • Intelligent software-defined network
  • Innovation in Radio Access Network (RAN) Solutions
  • Disaggregation using open interfaces

Pushing the Boundary

Pushing the Boundary

At Altiostar we are pushing the edge in terms of innovation to transform the way mobile networks are being deployed.

Customer Focus

Customer Focused

We are a team of passionate and experienced professionals who are focused on empowering operators to achieve their future vision and enable new services.


At Altiostar we are all about faster innovation velocity in a feature-rich, future-proof and cost-effective way.