Colt Number Hosting enables you to build and sell your own VoIP services under your own brand with minimum effort and low risk – with full regulatory compliance.

Our future proof solution provides a unique combination of our technical, process and regulatory expertise – supporting a quick market entry as you ramp up your business in a flexible and scalable way.

Develop your business with ease

Colt Number Hosting provides a standardised Pan-European solution – a high quality voice service based on single SIP interconnect and sophisticated number management.

Our B2B interface Cocom supports your high-volume number management transactions in a fully automated way, including real-time number reservations, number activations within 2 hours and number porting requests.

Keep it simple and regulatory compliant

Stay focused on your business. Avoid complexity of contracting with multiple national operators and investing in local processes – with a unique, pan-European customer experience.
With over 20 years of in-country experience, you can rely on Colt to handle local regulation such as number porting, emergency call services, lawful interception and directory services.

Keep control of your business

Manage all your geographic numbers in all your target countries with our unique B2B interface Cocom, with the same login and same customer experience. Depending on your business model you can use our web portal or our API for flexible integration into your back-end systems.

Bill your end-customers in a flexible way with our twice daily standardised unrated CDRs.

Track your voice and data KPIs such as call statistics and network performance with our online VoIP reporting.

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Meet Stella, Social Associate

“I’ve joined Colt as part of the Graduate scheme and I can say that I could not have made a better decision. The working environment here at Colt is amazing. People embrace you and are always willing to support your ideas. My days here have been nothing else but full of knowledge and new experiences.”

Careers at Colt
If a customer wants to expand into a new country, we can too – I just have to make one call to Colt and everything’s taken care of. Jack Aronson
Global SIP Peering Manager, Masergy