G
o
o
g
l
e
×
Please click
here
if you are not redirected within a few seconds.
All
Images
News
Books
Maps
Videos
Shopping
Search tools
Any time
Any time
Past hour
Past 24 hours
Past week
Past month
Past year
All results
All results
Verbatim
Public data network
A public data network is a network established and operated by a telecommunications administration, or a recognized private operating agency, for the specific purpose of providing data transmission services for the public.
Wikipedia