diff --git a/lib/modules/ens/index.js b/lib/modules/ens/index.js
index 480812c4..98d18936 100644
--- a/lib/modules/ens/index.js
+++ b/lib/modules/ens/index.js
@@ -304,6 +304,52 @@ class ENS {
     if (self.configured) {
       return cb();
     }
+
+    const knownConfigs = {
+      "ropsten": {
+        "ENSRegistry": {
+          "address": "0x112234455c3a32fd11230c42e7bccd4a84e02010",
+          "silent": true
+        },
+        "Resolver": {
+          "deploy": false
+        },
+        "FIFSRegistrar": {
+          "deploy": false
+        }
+      },
+      "rinkeby": {
+        "ENSRegistry": {
+          "address": "0xe7410170f87102DF0055eB195163A03B7F2Bff4A",
+          "silent": true
+        },
+        "Resolver": {
+          "deploy": false
+        },
+        "FIFSRegistrar": {
+          "deploy": false
+        }
+      },
+      "livenet": {
+        "ENSRegistry": {
+          "address": "0x314159265dd8dbb310642f98f50c066173c1259b",
+          "silent": true
+        },
+        "Resolver": {
+          "deploy": false
+        },
+        "FIFSRegistrar": {
+          "deploy": false
+        }
+      }
+    };
+    knownConfigs.testnet = knownConfigs.ropsten; // Synonyms
+    knownConfigs.mainnet = knownConfigs.livenet; // Synonyms
+
+    if (knownConfigs[this.env]) {
+      self.ensConfig = utils.recursiveMerge(self.ensConfig, knownConfigs[this.env]);
+    }
+
     async.waterfall([
       function registry(next) {
         self.events.request('deploy:contract', self.ensConfig.ENSRegistry, (err, _receipt) => {