Website:
http://www.llamayamovil.com/
FAQ:
http://www.llamayamovil.com/faq
Internet:
http://www.llamayamovil.com/internet
According to Wikipedia they are on the Orange network:
http://es.wikipedia.org/wiki/LlamaYA_Móvil
Coverage map Orange.es:
http://lared.orange.es/cobertura_movil.html
Internet settings for mobile:
APN: moreinternet
MMSC: {leave empty}
Proxy MMS: {leave empty}
Puerto de MMS: {leave empty}
MCC: 214
MNSC: 03
Tipo de APN: default