The data is available for download at the link I provided above.. It's in comma delimited format, so to use it you'd need to incorporate it into some sort of database. (Like Microsoft Access). Doing this would allow you to search without internet access.
Scroll down past the second big blue square in the link in my post above. You'll see two columns.. Field Description, Fixed Service, All Services etc.. Click on the data you want then download it.
'Field Descriptions' is a document describing what is in each comma delimited field.
There are also search functions on that page so you can search the data by Geographic Area, Call Sign etc..