diff --git a/CHANGELOG.md b/CHANGELOG.md
index e2061f2e..567cdc84 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,9 @@
 
 ## Unreleased
 
+- added: Mainnet codes for Arbitrum, Axelar, Base, and Cosmos Hub
+- changed: (CEX) Only allow quotes with known mainnet network codes
+
 ## 2.0.2 (2023-02-01)
 
 - fixed: Do not crash at load time if `BigInt` is not present.
diff --git a/src/swap/central/exolix.ts b/src/swap/central/exolix.ts
index 38e47020..cad1009e 100644
--- a/src/swap/central/exolix.ts
+++ b/src/swap/central/exolix.ts
@@ -45,17 +45,8 @@ const asInitOptions = asObject({
 })
 
 const INVALID_CURRENCY_CODES: InvalidCurrencyCodes = {
-  from: {
-    binancesmartchain: 'allCodes',
-    ethereum: ['MATIC'],
-    optimism: 'allCodes',
-    polygon: 'allCodes'
-  },
+  from: {},
   to: {
-    binancesmartchain: 'allCodes',
-    ethereum: ['MATIC'],
-    optimism: 'allCodes',
-    polygon: 'allCodes',
     zcash: ['ZEC']
   }
 }
diff --git a/src/swap/central/godex.ts b/src/swap/central/godex.ts
index 21069c99..4b6ff5ea 100644
--- a/src/swap/central/godex.ts
+++ b/src/swap/central/godex.ts
@@ -82,21 +82,10 @@ const asQuoteInfo = asObject({
 
 const INVALID_CURRENCY_CODES: InvalidCurrencyCodes = {
   from: {
-    avalanche: 'allTokens',
-    celo: 'allTokens',
-    digibyte: 'allCodes',
-    ethereum: ['MATIC'],
-    fantom: 'allTokens',
-    optimism: ['VELO'],
-    polygon: 'allCodes'
+    digibyte: 'allCodes'
   },
   to: {
-    avalanche: 'allTokens',
-    celo: 'allTokens',
-    ethereum: ['MATIC'],
-    fantom: 'allTokens',
-    polygon: 'allCodes',
-    zcash: ['ZEC'] // ChangeHero doesn't support sending to unified addresses
+    zcash: ['ZEC'] // Godex doesn't support sending to unified addresses
   }
 }