[bourbonkiller]

One thing I forgot above. Koko Mobile does support LTE data roaming in several countries and the list of networks is constantly expanding. Just recently they added Austria!

Albanien Vodafone Albania
Aserbaidschan Bakcell Ltd
Australien Singtel Optus Proprietary Limited
Brasilien Vivo S.A.
Bulgarien Mobiltel
Chile Telefónica Móvil de Chile
China China Mobile
Costa Rica Telefónica Móviles Costa Rica
Frankreich Bouygues Telecom
Georgien Mobitel LLC
Griechenland Vodafone Greece
Griechenland Wind Hellas Telecommunications S.A.
Guatemala Telefónica Móviles Guatemala (Telefónica)
Hongkong CSL Limited
Hongkong PCCW-HKT
Indien Punjab
Indien Madhya Pradesh
Indien Karnataka
Indien Delhi & NCR
Indien Rajasthan
Indien Maharashtra
Indien Kerala
Indien Haryana
Indien Andhra Pradesh and Telangana
Indien Tamil Nadu
Indien Mumbai
Indien Kolkata
Indien Himachal Pradesh
Indien Chennai
Italien Vodafone Omnitel N.V.
Japan SoftBank Mobile Corp
Jordanien Petra Jordanian Mobile Telecommunications Company (MobileCom)
Kanada Fido Solutions (Rogers Wireless)
Kanada Rogers Communications
Kolumbien Telefónica Móviles Colombia
Korea KT
Mexiko Movistar - Telefónica Moviles
Neuseeland Vodafone New Zealand
Nicaragua TelefonÃ*a Celular de Nicaragua, S.A. (Telefónica, S.A.)
Österreich Hutchison Drei Austria
Österreich A1 Telekom Austria
Philippinen Globe Telecom
Polen Polkomtel Sp. z o.o.
Portugal Vodafone Portugal
Rumänien Vodafone România
Russland OJSC Vimpel-Communications
Schweiz Orange Communications SA
Serbien VIP Mobile
Singapur StarHub Mobile
Spanien Vodafone Spain
Sri Lanka Mobitel (Pvt) Ltd
Südafrika Vodacom
Taiwan Chunghwa Telecom
Thailand Total Access Communication
Thailand DTN
Türkei Vodafone Turkey