Arelion and Cellusys partner to deliver suite of hosted roaming services

STOCKHOLM, Oct. 14, 2025 /PRNewswire/ -- Arelion today announced a partnership with Cellusys, the industry leader in roaming steering, fraud and security and analytics solutions for mobile operators, to bring a comprehensive suite of hosted roaming Value Added Services (VAS) to operators worldwide. Delivered via Arelion's global IPX and backbone, the joint solution gives operators a simple, scalable way to enhance roaming performance, security and subscriber experience whilst preparing for the challenges of 5G Standalone (SA) implementation.

Through this partnership, Arelion will offer operators:

• Hosted Security: the Cellusys Signalling Firewall protects networks from SS7 and Diameter, fraud, intrusion and signalling abuse in real time.
• Roaming VAS: services such as steering of roaming, Welcome SMS and campaign profiling help operators optimize traffic, increase revenues and improve customer engagement.
• Analytics & Intelligence: real-time visibility into roaming traffic flows and threat landscapes, enabling data-driven decision-making, performance tuning and faster problem resolution.

The hosted roaming suite will be available via Arelion's IPX, enabling operators to avoid heavy investments in on-premise infrastructure, reduce complexity and activate new services quickly – with operations, updates and support managed end-to-end.

"This is an important step in the evolution of our IPX services which adds to our current connectivity solutions, enabling our customers to strengthen security, drive revenue and enhance their roaming capabilities over Arelion's global network," said Anna Maslewska, Head of Products at Arelion.

With the increasing complexity of roaming traffic, operators must secure new signalling protocols, manage latency-sensitive traffic and deliver consistent quality of experience. With Arelion's IPX and global backbone as the foundation, the hosted services suite provides operators with numerous benefits, including:

• Signalling security aligned with GSMA/3GPP standards, ensuring up-to-date protection against the latest threats.
• Seamless support across multiple signalling technologies, ensuring smooth migration.
• Plug-and-play deployment, enabling operators to scale fast in new markets.
• Increased roaming revenues through optimized steering and engagement services.
• Actionable insights via integrated analytics and traffic intelligence.
• Reduced operational burden by outsourcing complexity to Arelion and Cellusys.
• Global solution enabling traffic management and analysis across Arelion's Tier-1 backbone and IPX platform.

"We are delighted to partner with Arelion to deliver our solutions on a global scale. Together, we enable operators to deploy roaming services and signalling security without heavy investments or delays, while providing the intelligence needed to operate smarter in the 5G world," said Brendan Cleary, CEO at Cellusys.

About Arelion
Arelion solves global connectivity challenges for multinational enterprises whose businesses rely on digital infrastructure. On top of the world's #1 ranked IP backbone and a unique ecosystem of cloud and network service providers, we provide an award-winning customer experience to customers in close to 130 countries worldwide. Our global Internet services connect more than 700 cloud, security and content providers with low latency. For further resilience, our private Cloud Connect service connects directly to Amazon Web Services, Microsoft Azure, Google Cloud, IBM Cloud and Oracle cloud across North America, Europe and Asia. Discover more at www.arelion.com and follow us on LinkedIn and X.

About Cellusys
Founded in 2005, Cellusys is the industry leader in roaming, fraud & security and analytics solutions for communication service providers. The company offers a wide range of products and services designed to give mobile operators visibility and control of their signalling and data traffic. Cellusys has won numerous innovation awards and is ranked as #1 vendor in roaming and security, by both ROCCO and Kaleido, excelling on Net Promoter Score. 

Contacts

Arelion
Martin Sjögren, Senior Manager PR and Analyst Relations
+46 (0)707 770 522
[email protected]

Media Contact
Jeannette Bitz, Engage PR
+1 510 295 4972
[email protected]

SOURCE Arelion