android/guava/src/com/google/common/collect/Range.java
public static <C extends Comparable<?>> Range<C> atLeast(C endpoint) {
    return create(Cut.belowValue(endpoint), Cut.<C>aboveAll());
  }
public static <C extends Comparable<?>> Range<C> atLeast(C endpoint) {
    return create(Cut.belowValue(endpoint), Cut.<C>aboveAll());
  }
Returns a range that contains all values greater than or equal to {@code endpoint}.

@since 14.0