diff --git a/_data/chains/eip155-72172.json b/_data/chains/eip155-72172.json
new file mode 100644
index 000000000000..c16865771be7
--- /dev/null
+++ b/_data/chains/eip155-72172.json
@@ -0,0 +1,28 @@
+{
+  "name": "Eclipse Subnet",
+  "chain": "ECLIPSE",
+  "icon": "eclipse",
+  "rpc": ["https://subnets.avax.network/eclipse/testnet/rpc"],
+  "features": [
+    {
+      "name": "EIP1559"
+    }
+  ],
+  "faucets": [],
+  "nativeCurrency": {
+    "name": "Eclipse",
+    "symbol": "ECLP",
+    "decimals": 16
+  },
+  "infoURL": "http://eclipsenet.io",
+  "shortName": "eclipse",
+  "chainId": 72172,
+  "networkId": 72172,
+  "explorers": [
+    {
+      "name": "ECLIPSE Explorer",
+      "url": "https://subnets-test.avax.network/eclipse",
+      "standard": "EIP3091"
+    }
+  ]
+}