public static boolean isValidGroupAddress(final byte[] address) {
        if (!isAddressInRange(address))
            return false;
        return isValidGroupAddress(MeshParserUtils.unsignedBytesToInt(address[1], address[0]));
    }
Validates a unicast address

@param address 16-bit address
@return true if the address is a valid virtual address or false otherwise
mesh/src/main/java/no/nordicsemi/android/mesh/utils/MeshAddress.java