Four providers, all St Peter Port. Sure traces to 1896 as the States Telephone Department — now Sure by Beyon under Bahraini ownership after acquiring Airtel-Vodafone in November 2024. JT launched in 2002 as Wave Telecom; its Jersey parent dates to 1888. Coop Mobile arrived February 2026 as an MVNO on Sure's network. Three hold ISO 27001. —
St Peter Port
Part of Beyon (formerly Batelco Group, Bahrain)
✦130-year heritage (1896)
Guernsey's main telecommunications provider, offering mobile, broadband, landline, and IT services under the Sure by Beyon brand.
St Peter Port
Part of Beyon (formerly Batelco)
✦130-year heritage (1896)
Sure's B2B division, providing connectivity, cloud, and managed services across the Channel Islands and Isle of Man.
St Peter Port·Est. 2002
Part of JT Group Limited
Guernsey's full-service telecommunications provider, offering mobile, fibre broadband, landline, and enterprise services as a subsidiary of JT Group.
Castel·Est. 2023
Telecommunications licensee developing an independent 2.3 Gigabit Guernsey broadband network and offering global connectivity products, including M2M eSIMs.
St Peter Port·Est. 2026
Channel Islands MVNO launched in 2026, offering no-contract SIM and device plans on Sure's network in Guernsey and Jersey.