diff --git a/src/getNetworkName.ts b/src/getNetworkName.ts
new file mode 100644
index 0000000..87cf4ab
--- /dev/null
+++ b/src/getNetworkName.ts
@@ -0,0 +1,22 @@
+import networks from "./networks";
+
+export const getNetworkName = (alias: string): string | null => {
+  const lowerCaseAlias = alias.toLowerCase();
+  for (const networkKey in networks) {
+    const network = networks[networkKey as keyof typeof networks] as {
+      chain_aliases?: string[];
+    };
+    if (
+      network.chain_aliases &&
+      network.chain_aliases.some(
+        (networkAlias) => networkAlias.toLowerCase() === lowerCaseAlias
+      )
+    ) {
+      return networkKey;
+    }
+    if (networkKey.toLowerCase() === lowerCaseAlias) {
+      return networkKey;
+    }
+  }
+  return null;
+};