android.net
Interfaces 
UrlQuerySanitizer.ValueSanitizer
Classes 
ConnectivityManager
Credentials
DhcpInfo
LocalServerSocket
LocalSocket
LocalSocketAddress
MailTo
NetworkInfo
Proxy
SSLCertificateSocketFactory
SSLSessionCache
TrafficStats
Uri
Uri.Builder
UrlQuerySanitizer
UrlQuerySanitizer.IllegalCharacterValueSanitizer
VpnService
Enums 
LocalSocketAddress.Namespace
NetworkInfo.DetailedState
NetworkInfo.State
Exceptions 
ParseException