Telefonica Germany enables 5G roaming in 100+ countries ⋆

Telefonica Germany enables 5G roaming in 100+ countries

5G roaming is reshaping global connectivity, giving mobile users and enterprises faster speeds, lower latency, and a more seamless experience beyond their home networks. Telefonica Germany customers in more than 100 countries worldwide can now surf the internet on the fast 5G network. Just in time for the Easter holidays, when many people head out to enjoy the sun, the telecommunications provider has expanded its 5G roaming offering.

Anyone planning a dream vacation in the Caribbean or a trip through Costa Rica will not only have the best time to travel in April. In these and many other regions around the world, O2 Telefónica customers can now also use the modern 5G standard while traveling. A total of 200 5G networks are now available to them around the world.

Telefónica Germany is making 5G available in more than 100 countries. Our goal is to ensure that our customers have an excellent network experience not only in Germany but also internationally. So that they can experience the benefits of 5G worldwide. Whether it’s communication, entertainment, or working on the go – with our constantly growing roaming offering, our customers can maintain their digital habits even on vacation or business trips ,”

says Alfons Lösing , Chief Partner & Wholesale Officer of O2.

O2 Telefónica already offers 5G coverage in popular European and non-European countries, including Australia, Brazil, Indonesia, Mexico, Thailand, and the USA. The telecommunications company has now expanded its 5G roaming offering to include the following countries: Brunei, Costa Rica, the French Antilles (Martinique, Saint Martin, Saint Barthelemy, French Guiana, Guadeloupe, Marie Galante, La Désirade, Les Saintes), Gambia, Guam, Iran, the Cayman Islands, Kosovo, Panama, the Seychelles, and Tunisia. O2 Telefónica 5G customers automatically benefit from the international offering. This includes O2 residential customers, O2 business customers, customers of the second brand Blau, and numerous partner brands with 5G tariffs.

What Is 5G Roaming?

5G roaming allows mobile users to connect to a 5G network while traveling outside their home network coverage. In simple terms, it lets a subscriber use 5G data, voice, and other mobile services through a visited network, while their service relationship remains with their home operator.

When a user travels abroad, their device first connects to the visited network. That network then communicates with the user’s home network to authenticate the subscriber, authorize services, and manage usage. Once this connection is established, the user can access mobile services much like they would at home, including faster data speeds, lower latency, and improved service quality where 5G coverage is available.

For 5G roaming to work properly, there must be a technical and commercial connection between the home network and the visited network. This is supported by roaming agreements, compatible network systems, and the right 5G architecture.

The GSMA provides industry guidelines and frameworks that mobile network operators use to support international roaming. In practice, successful 5G roaming depends on several key elements:

Established roaming agreements between operators

Compatibility between the home and visited networks

Support for 5G non-standalone (NSA) or standalone (SA) technology

Reliable signaling, authentication, billing, and service management between networks

5G roaming is becoming increasingly important for both consumers and enterprises. For mobile users, it means a faster and more consistent experience while traveling. For operators, it strengthens the service portfolio, creates new revenue opportunities, and adds value for customers who expect high-quality connectivity wherever they go.

Surfing in 200 5G networks worldwide with Telefonica Germany 5G roaming service

A total of around 200 5G networks are available for mobile data use abroad, as access to multiple 5G networks is possible in many countries.

5G roaming is currently available in the following countries and regions:

Andorra, U.S. Virgin Islands, Australia, Austria, Azerbaijan, Bahrain, Belgium, Brazil, Brunei, Bulgaria, Canada, Cayman Islands, Chile, China, Colombia, Costa Rica, Croatia, Denmark, Egypt, Estonia, Ethiopia, Faroe Islands, Finland, France, French Polynesia, French Antilles (Martinique, Saint Martin, Saint Barthelemy, French Guiana, Guadeloupe, Marie Galante, La Désirade, Les Saintes), Gambia, Georgia, Gibraltar, Greece, Guam, Guatemala, Hong Kong, Iceland, India, Indonesia, Iran, Ireland, Israel, Italy, Japan, Jersey, Jordan, Kazakhstan, Kenya, Kosovo, Kuwait, Latvia, Liechtenstein, Lithuania, Luxembourg, Malaysia, Maldives, Malta, Mauritius, Mexico, Monaco, Montenegro, Netherlands, New Zealand, Nigeria, North Macedonia, Norway, Oman, Panama, Peru, Philippines, Poland, Portugal, Puerto Rico, Qatar, Réunion, Romania, San Marino, Saudi Arabia, Sweden, Switzerland, Senegal, Seychelles, Singapore, Slovakia, Slovenia, South Africa, South Korea, Spain, Sri Lanka, Taiwan, Tanzania, Thailand, Czech Republic, Tunisia, Turkey, Hungary, Uruguay, USA, Uzbekistan, Vatican City, United Arab Emirates, United Kingdom, Vietnam, Cyprus.

Roaming