docs: @Override
  	public boolean isPrefixBlock() {
  		Integer networkPrefixLength = getNetworkPrefixLength();
  		if(networkPrefixLength == null) {
  			return false;
  		}
  		if(getNetwork().getPrefixConfiguration().allPrefixedAddressesAreSubnets()) {
  			return true;
  		}
  		return containsPrefixBlock(networkPrefixLength);
  	}