diff --git a/src/iris-rs/lib.rs b/src/iris-rs/lib.rs
index 7d12d9a..a598702 100644
--- a/src/iris-rs/lib.rs
+++ b/src/iris-rs/lib.rs
@@ -1,14 +1 @@
-pub fn add(left: usize, right: usize) -> usize {
-    left + right
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    #[test]
-    fn it_works() {
-        let result = add(2, 2);
-        assert_eq!(result, 4);
-    }
-}
+pub mod rir;
diff --git a/src/iris-rs/rir.rs b/src/iris-rs/rir.rs
new file mode 100644
index 0000000..65ab64a
--- /dev/null
+++ b/src/iris-rs/rir.rs
@@ -0,0 +1,7 @@
+pub enum RIR {
+    Arin,
+    Ripe,
+    Lacninc,
+    Apnic,
+    Afrinic,
+}