diff --git a/domain/src/main/java/com/tangem/domain/DomainError.kt b/domain/src/main/java/com/tangem/domain/DomainError.kt
index 1f923c0c90..d7b24eccbf 100644
--- a/domain/src/main/java/com/tangem/domain/DomainError.kt
+++ b/domain/src/main/java/com/tangem/domain/DomainError.kt
@@ -10,19 +10,23 @@ import com.tangem.common.module.ModuleMessage
 sealed interface DomainModuleMessage : ModuleMessage
 
 sealed class DomainError(
-    override val code: Int,
+    subCode: Int,
     override val message: String,
     override val data: Any?,
 ) : DomainModuleMessage, ModuleError {
+    override val code: Int = ERROR_CODE_DOMAIN + subCode
 
     companion object {
-        const val CODE_ADD_CUSTOM_TOKEN = 1000
+        // base code used for all error in the module
+        const val ERROR_CODE_DOMAIN = 10000
+        const val ERROR_CODE_ADD_CUSTOM_TOKEN = 100
+//        const val CODE_ANY_OTHER = 200..299
     }
 }
 
 sealed class AddCustomTokenError(
     subCode: Int = 0
-) : DomainError(CODE_ADD_CUSTOM_TOKEN + subCode, this::class.java.simpleName, null) {
+) : DomainError(ERROR_CODE_ADD_CUSTOM_TOKEN + subCode, this::class.java.simpleName, null) {
 
     object FieldIsEmpty : AddCustomTokenError()
     object FieldIsNotEmpty : AddCustomTokenError()
diff --git a/network/src/main/java/com/tangem/network/api/tangemTech/TangemTechService.kt b/network/src/main/java/com/tangem/network/api/tangemTech/TangemTechService.kt
index 10c0ceb3cc..ac969a6868 100644
--- a/network/src/main/java/com/tangem/network/api/tangemTech/TangemTechService.kt
+++ b/network/src/main/java/com/tangem/network/api/tangemTech/TangemTechService.kt
@@ -5,6 +5,8 @@ import com.tangem.common.services.performRequest
 import com.tangem.network.common.AddHeaderInterceptor
 import com.tangem.network.common.CacheControlHttpInterceptor
 import com.tangem.network.common.createRetrofitInstance
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
 
 /**
 [REDACTED_AUTHOR]
@@ -59,22 +61,22 @@ class CoinsRoute : TangemTechRoute {
     suspend fun prices(
         currency: String,
         ids: List<String>
-    ): Result<Coins.PricesResponse> {
-        return performRequest { api.coinsPrices(currency, ids) }
+    ): Result<Coins.PricesResponse> = withContext(Dispatchers.IO) {
+        performRequest { api.coinsPrices(currency, ids) }
     }
 
     suspend fun checkAddress(
         contractAddress: String,
         networkId: String? = null
-    ): Result<Coins.CheckAddressResponse> {
-        return performRequest { api.coinsCheckAddress(contractAddress, networkId) }
+    ): Result<Coins.CheckAddressResponse> = withContext(Dispatchers.IO) {
+        performRequest { api.coinsCheckAddress(contractAddress, networkId) }
     }
 
-    suspend fun currencies(): Result<Coins.CurrenciesResponse> {
-        return performRequest { api.coinsCurrencies() }
+    suspend fun currencies(): Result<Coins.CurrenciesResponse> = withContext(Dispatchers.IO) {
+        performRequest { api.coinsCurrencies() }
     }
 
-    suspend fun tokens(): Result<Coins.TokensResponse> {
-        return performRequest { api.coinsTokens() }
+    suspend fun tokens(): Result<Coins.TokensResponse> = withContext(Dispatchers.IO) {
+        performRequest { api.coinsTokens() }
     }
 }
\ No newline at end of file
diff --git a/network/src/main/java/com/tangem/network/common/NetworError.kt b/network/src/main/java/com/tangem/network/common/NetworError.kt
new file mode 100644
index 0000000000..bdee8a8729
--- /dev/null
+++ b/network/src/main/java/com/tangem/network/common/NetworError.kt
@@ -0,0 +1,23 @@
+package com.tangem.network.common
+
+import com.tangem.common.module.ModuleError
+import com.tangem.common.module.ModuleMessage
+
+/**
+[REDACTED_AUTHOR]
+ */
+sealed interface NetworkModuleMessage : ModuleMessage
+
+sealed class NetworkError(
+    subCode: Int,
+    override val message: String,
+    override val data: Any?,
+) : NetworkModuleMessage, ModuleError {
+    override val code: Int = ERROR_CODE_NETWORK + subCode
+
+    companion object {
+        // base code used for all error in the module
+        const val ERROR_CODE_NETWORK = 20000
+        // const val CODE_ANY_OTHER = 100..199
+    }
+}
\ No newline at end of file
diff --git a/network/src/main/java/com/tangem/network/common/NetworkException.kt b/network/src/main/java/com/tangem/network/common/NetworkException.kt
new file mode 100644
index 0000000000..033e2b9b62
--- /dev/null
+++ b/network/src/main/java/com/tangem/network/common/NetworkException.kt
@@ -0,0 +1,9 @@
+package com.tangem.network.common
+
+/**
+[REDACTED_AUTHOR]
+ */
+interface NetworkInternalException
+
+sealed class NetworkException(message: String?) : Throwable(message), NetworkInternalException {
+}
\ No newline at end of file