diff --git a/Cargo.lock b/Cargo.lock
index 95bad4fea2..89cad2ff34 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3735,6 +3735,7 @@ version = "0.1.0"
 dependencies = [
  "cfg-if 1.0.0",
  "hex-literal",
+ "once_cell",
  "serde",
  "thiserror",
  "url",
diff --git a/common/client-libs/validator-client/src/client.rs b/common/client-libs/validator-client/src/client.rs
index f982cf7f4d..4577e148ca 100644
--- a/common/client-libs/validator-client/src/client.rs
+++ b/common/client-libs/validator-client/src/client.rs
@@ -4,6 +4,7 @@
 use crate::{validator_api, ValidatorClientError};
 use coconut_interface::{BlindSignRequestBody, BlindedSignatureResponse, VerificationKeyResponse};
 use mixnet_contract_common::{GatewayBond, IdentityKeyRef, MixNodeBond};
+use network_defaults::DEFAULT_NETWORK;
 use url::Url;
 use validator_api_requests::models::{
     CoreNodeStatusResponse, MixnodeStatusResponse, RewardEstimationResponse,
@@ -29,6 +30,7 @@ use std::str::FromStr;
 
 #[cfg(feature = "nymd-client")]
 #[must_use]
+#[derive(Debug)]
 pub struct Config {
     network: network_defaults::all::Network,
     api_url: Url,
@@ -159,12 +161,10 @@ impl Client<QueryNymdClient> {
         let nymd_client = NymdClient::connect(
             config.nymd_url.as_str(),
             Some(config.mixnet_contract_address.clone().unwrap_or_else(|| {
-                cosmrs::AccountId::from_str(network_defaults::DEFAULT_MIXNET_CONTRACT_ADDRESS)
-                    .unwrap()
+                cosmrs::AccountId::from_str(DEFAULT_NETWORK.mixnet_contract_address()).unwrap()
             })),
             Some(config.vesting_contract_address.clone().unwrap_or_else(|| {
-                cosmrs::AccountId::from_str(network_defaults::DEFAULT_VESTING_CONTRACT_ADDRESS)
-                    .unwrap()
+                cosmrs::AccountId::from_str(DEFAULT_NETWORK.vesting_contract_address()).unwrap()
             })),
             Some(
                 config
@@ -172,7 +172,7 @@ impl Client<QueryNymdClient> {
                     .clone()
                     .unwrap_or_else(|| {
                         cosmrs::AccountId::from_str(
-                            network_defaults::DEFAULT_BANDWIDTH_CLAIM_CONTRACT_ADDRESS,
+                            DEFAULT_NETWORK.bandwidth_claim_contract_address(),
                         )
                         .unwrap()
                     }),
diff --git a/common/client-libs/validator-client/src/nymd/fee/gas_price.rs b/common/client-libs/validator-client/src/nymd/fee/gas_price.rs
index 72e2b23a2c..27276ee12d 100644
--- a/common/client-libs/validator-client/src/nymd/fee/gas_price.rs
+++ b/common/client-libs/validator-client/src/nymd/fee/gas_price.rs
@@ -72,7 +72,7 @@ impl FromStr for GasPrice {
 }
 
 impl GasPrice {
-    pub fn new_with_default_price(denom: String) -> Result<Self, NymdError> {
+    pub fn new_with_default_price(denom: &str) -> Result<Self, NymdError> {
         format!("{}{}", defaults::GAS_PRICE_AMOUNT, denom).parse()
     }
 }
@@ -83,8 +83,8 @@ mod tests {
 
     #[test]
     fn default_gas_price_is_valid() {
-        let denom = "unym".parse().unwrap();
-        let _ = GasPrice::new_with_default_price(denom);
+        let denom = "unym";
+        GasPrice::new_with_default_price(denom).unwrap();
     }
 
     #[test]
diff --git a/common/client-libs/validator-client/src/nymd/wallet/mod.rs b/common/client-libs/validator-client/src/nymd/wallet/mod.rs
index ed4e54e3c3..74a70b7cab 100644
--- a/common/client-libs/validator-client/src/nymd/wallet/mod.rs
+++ b/common/client-libs/validator-client/src/nymd/wallet/mod.rs
@@ -57,16 +57,16 @@ pub struct DirectSecp256k1HdWallet {
 }
 
 impl DirectSecp256k1HdWallet {
-    pub fn builder(prefix: String) -> DirectSecp256k1HdWalletBuilder {
+    pub fn builder(prefix: &str) -> DirectSecp256k1HdWalletBuilder {
         DirectSecp256k1HdWalletBuilder::new(prefix)
     }
 
     /// Restores a wallet from the given BIP39 mnemonic using default options.
-    pub fn from_mnemonic(prefix: String, mnemonic: bip39::Mnemonic) -> Result<Self, NymdError> {
+    pub fn from_mnemonic(prefix: &str, mnemonic: bip39::Mnemonic) -> Result<Self, NymdError> {
         DirectSecp256k1HdWalletBuilder::new(prefix).build(mnemonic)
     }
 
-    pub fn generate(prefix: String, word_count: usize) -> Result<Self, NymdError> {
+    pub fn generate(prefix: &str, word_count: usize) -> Result<Self, NymdError> {
         let mneomonic = bip39::Mnemonic::generate(word_count)?;
         Self::from_mnemonic(prefix, mneomonic)
     }
@@ -146,11 +146,11 @@ pub struct DirectSecp256k1HdWalletBuilder {
 }
 
 impl DirectSecp256k1HdWalletBuilder {
-    pub fn new(prefix: String) -> Self {
+    pub fn new(prefix: &str) -> Self {
         DirectSecp256k1HdWalletBuilder {
             bip39_password: String::new(),
             hd_paths: vec![defaults::COSMOS_DERIVATION_PATH.parse().unwrap()],
-            prefix,
+            prefix: prefix.into(),
         }
     }
 
@@ -197,11 +197,11 @@ impl DirectSecp256k1HdWalletBuilder {
 #[cfg(test)]
 mod tests {
     use super::*;
-    use network_defaults::{default_network, BECH32_PREFIX};
+    use network_defaults::DEFAULT_NETWORK;
 
     #[test]
     fn generating_account_addresses() {
-        let (addr1, addr2, addr3) = match BECH32_PREFIX {
+        let (addr1, addr2, addr3) = match DEFAULT_NETWORK.bech32_prefix() {
             "punk" => (
                 "punk1jw6mp7d5xqc7w6xm79lha27glmd0vdt32a3fj2",
                 "punk1h5hgn94nsq4kh99rjj794hr5h5q6yfm22mcqqn",
@@ -222,7 +222,7 @@ mod tests {
         ];
 
         for (mnemonic, address) in mnemonic_address.into_iter() {
-            let prefix = default_network().bech32_prefix();
+            let prefix = DEFAULT_NETWORK.bech32_prefix();
             let wallet =
                 DirectSecp256k1HdWallet::from_mnemonic(prefix, mnemonic.parse().unwrap()).unwrap();
             assert_eq!(
diff --git a/common/crypto/src/bech32_address_validation.rs b/common/crypto/src/bech32_address_validation.rs
index 8f6ae5b7a7..2d9eda5935 100644
--- a/common/crypto/src/bech32_address_validation.rs
+++ b/common/crypto/src/bech32_address_validation.rs
@@ -1,4 +1,4 @@
-use config::defaults;
+use config::defaults::DEFAULT_NETWORK;
 use subtle_encoding::bech32;
 
 #[derive(Debug, Clone, PartialEq)]
@@ -18,12 +18,12 @@ pub fn try_bech32_decode(address: &str) -> Result<String, Bech32Error> {
 pub fn validate_bech32_prefix(address: &str) -> Result<(), Bech32Error> {
     let prefix = try_bech32_decode(address)?;
 
-    if prefix == defaults::BECH32_PREFIX {
+    if prefix == DEFAULT_NETWORK.bech32_prefix() {
         Ok(())
     } else {
         Err(Bech32Error::WrongPrefix(format!(
             "your bech32 address prefix should be {}, not {}",
-            defaults::BECH32_PREFIX,
+            DEFAULT_NETWORK.bech32_prefix(),
             prefix
         )))
     }
diff --git a/common/network-defaults/Cargo.toml b/common/network-defaults/Cargo.toml
index c5127eefd4..85282473ce 100644
--- a/common/network-defaults/Cargo.toml
+++ b/common/network-defaults/Cargo.toml
@@ -9,6 +9,7 @@ edition = "2021"
 [dependencies]
 cfg-if = "1.0.0"
 hex-literal = "0.3.3"
+once_cell = "1.7.2"
 serde = {version = "1.0", features = ["derive"]}
 thiserror = "1.0"
 url = "2.2"
diff --git a/common/network-defaults/src/all.rs b/common/network-defaults/src/all.rs
index 624a1170c8..51bc7e5d10 100644
--- a/common/network-defaults/src/all.rs
+++ b/common/network-defaults/src/all.rs
@@ -2,9 +2,11 @@
 // SPDX-License-Identifier: Apache-2.0
 
 use serde::{Deserialize, Serialize};
-use std::{collections::HashMap, fmt, str::FromStr};
+use std::{collections::HashMap, fmt, ops::Deref, str::FromStr};
 
-use crate::{mainnet, qa, sandbox, ValidatorDetails};
+use crate::{
+    DefaultNetworkDetails, ValidatorDetails, MAINNET_DEFAULTS, QA_DEFAULTS, SANDBOX_DEFAULTS,
+};
 
 use thiserror::Error;
 
@@ -22,20 +24,40 @@ pub enum Network {
 }
 
 impl Network {
-    pub fn bech32_prefix(&self) -> String {
+    fn details(&self) -> &DefaultNetworkDetails<'_> {
         match self {
-            Self::QA => String::from(qa::BECH32_PREFIX),
-            Self::SANDBOX => String::from(sandbox::BECH32_PREFIX),
-            Self::MAINNET => String::from(mainnet::BECH32_PREFIX),
+            Self::QA => &QA_DEFAULTS,
+            Self::SANDBOX => &SANDBOX_DEFAULTS,
+            Self::MAINNET => &MAINNET_DEFAULTS,
         }
     }
 
-    pub fn denom(&self) -> String {
-        match self {
-            Self::QA => String::from(qa::DENOM),
-            Self::SANDBOX => String::from(sandbox::DENOM),
-            Self::MAINNET => String::from(mainnet::DENOM),
-        }
+    pub fn bech32_prefix(&self) -> &str {
+        self.details().bech32_prefix
+    }
+
+    pub fn denom(&self) -> &str {
+        self.details().denom
+    }
+
+    pub fn mixnet_contract_address(&self) -> &str {
+        self.details().mixnet_contract_address
+    }
+
+    pub fn vesting_contract_address(&self) -> &str {
+        self.details().vesting_contract_address
+    }
+
+    pub fn bandwidth_claim_contract_address(&self) -> &str {
+        self.details().bandwidth_claim_contract_address
+    }
+
+    pub fn rewarding_validator_address(&self) -> &str {
+        self.details().rewarding_validator_address
+    }
+
+    pub fn validators(&self) -> impl Iterator<Item = &ValidatorDetails> {
+        self.details().validators.iter()
     }
 }
 
@@ -75,6 +97,20 @@ pub struct NetworkDetails {
     validators: Vec<ValidatorDetails>,
 }
 
+impl From<&DefaultNetworkDetails<'_>> for NetworkDetails {
+    fn from(details: &DefaultNetworkDetails) -> Self {
+        NetworkDetails {
+            bech32_prefix: details.bech32_prefix.into(),
+            denom: details.denom.into(),
+            mixnet_contract_address: details.mixnet_contract_address.into(),
+            vesting_contract_address: details.vesting_contract_address.into(),
+            bandwidth_claim_contract_address: details.bandwidth_claim_contract_address.into(),
+            rewarding_validator_address: details.rewarding_validator_address.into(),
+            validators: details.validators.clone(),
+        }
+    }
+}
+
 #[derive(Clone, Debug, Deserialize, Serialize)]
 pub struct SupportedNetworks {
     networks: HashMap<Network, NetworkDetails>,
@@ -86,53 +122,13 @@ impl SupportedNetworks {
 
         for network in support {
             match network {
-                Network::MAINNET => networks.insert(
-                    Network::MAINNET,
-                    NetworkDetails {
-                        bech32_prefix: String::from(mainnet::BECH32_PREFIX),
-                        denom: String::from(mainnet::DENOM),
-                        mixnet_contract_address: String::from(mainnet::MIXNET_CONTRACT_ADDRESS),
-                        vesting_contract_address: String::from(mainnet::VESTING_CONTRACT_ADDRESS),
-                        bandwidth_claim_contract_address: String::from(
-                            mainnet::BANDWIDTH_CLAIM_CONTRACT_ADDRESS,
-                        ),
-                        rewarding_validator_address: String::from(
-                            mainnet::REWARDING_VALIDATOR_ADDRESS,
-                        ),
-                        validators: mainnet::validators(),
-                    },
-                ),
-
-                Network::SANDBOX => networks.insert(
-                    Network::SANDBOX,
-                    NetworkDetails {
-                        bech32_prefix: String::from(sandbox::BECH32_PREFIX),
-                        denom: String::from(sandbox::DENOM),
-                        mixnet_contract_address: String::from(sandbox::MIXNET_CONTRACT_ADDRESS),
-                        vesting_contract_address: String::from(sandbox::VESTING_CONTRACT_ADDRESS),
-                        bandwidth_claim_contract_address: String::from(
-                            sandbox::BANDWIDTH_CLAIM_CONTRACT_ADDRESS,
-                        ),
-                        rewarding_validator_address: String::from(
-                            sandbox::REWARDING_VALIDATOR_ADDRESS,
-                        ),
-                        validators: sandbox::validators(),
-                    },
-                ),
-                Network::QA => networks.insert(
-                    Network::QA,
-                    NetworkDetails {
-                        bech32_prefix: String::from(qa::BECH32_PREFIX),
-                        denom: String::from(qa::DENOM),
-                        mixnet_contract_address: String::from(qa::MIXNET_CONTRACT_ADDRESS),
-                        vesting_contract_address: String::from(qa::VESTING_CONTRACT_ADDRESS),
-                        bandwidth_claim_contract_address: String::from(
-                            qa::BANDWIDTH_CLAIM_CONTRACT_ADDRESS,
-                        ),
-                        rewarding_validator_address: String::from(qa::REWARDING_VALIDATOR_ADDRESS),
-                        validators: qa::validators(),
-                    },
-                ),
+                Network::MAINNET => {
+                    networks.insert(Network::MAINNET, MAINNET_DEFAULTS.deref().into())
+                }
+                Network::SANDBOX => {
+                    networks.insert(Network::SANDBOX, SANDBOX_DEFAULTS.deref().into())
+                }
+                Network::QA => networks.insert(Network::QA, QA_DEFAULTS.deref().into()),
             };
         }
         SupportedNetworks { networks }
diff --git a/common/network-defaults/src/lib.rs b/common/network-defaults/src/lib.rs
index acdd02e011..64b9a978af 100644
--- a/common/network-defaults/src/lib.rs
+++ b/common/network-defaults/src/lib.rs
@@ -1,5 +1,7 @@
 // Copyright 2020 - Nym Technologies SA <contact@nymtech.net>
 // SPDX-License-Identifier: Apache-2.0
+
+use once_cell::sync::Lazy;
 use serde::{Deserialize, Serialize};
 use url::Url;
 
@@ -9,64 +11,79 @@ pub mod mainnet;
 pub mod qa;
 pub mod sandbox;
 
+// The set of defaults that are decided at compile time. Ideally we want to reduce these to a
+// minimum.
+// Keep DENOM around mostly for use in contracts. (TODO: consider moving it there, or renaming?)
 cfg_if::cfg_if! {
     if #[cfg(network = "mainnet")] {
-        pub const BECH32_PREFIX: &str = mainnet::BECH32_PREFIX;
+        pub const DEFAULT_NETWORK: all::Network = all::Network::MAINNET;
         pub const DENOM: &str = mainnet::DENOM;
 
-        pub const DEFAULT_MIXNET_CONTRACT_ADDRESS: &str = mainnet::MIXNET_CONTRACT_ADDRESS;
-        pub const DEFAULT_VESTING_CONTRACT_ADDRESS: &str = mainnet::VESTING_CONTRACT_ADDRESS;
-        pub const DEFAULT_BANDWIDTH_CLAIM_CONTRACT_ADDRESS: &str = mainnet::BANDWIDTH_CLAIM_CONTRACT_ADDRESS;
         pub const ETH_CONTRACT_ADDRESS: [u8; 20] = mainnet::_ETH_CONTRACT_ADDRESS;
         pub const ETH_ERC20_CONTRACT_ADDRESS: [u8; 20] = mainnet::_ETH_ERC20_CONTRACT_ADDRESS;
-        pub const DEFAULT_REWARDING_VALIDATOR_ADDRESS: &str = mainnet::REWARDING_VALIDATOR_ADDRESS;
 
-        pub fn default_validators() -> Vec<ValidatorDetails> {
-            mainnet::validators()
-        }
-
-        pub fn default_network() -> all::Network {
-            all::Network::MAINNET
-        }
     } else if #[cfg(network = "qa")] {
-        pub const BECH32_PREFIX: &str = qa::BECH32_PREFIX;
+        pub const DEFAULT_NETWORK: all::Network = all::Network::QA;
         pub const DENOM: &str = qa::DENOM;
 
-        pub const DEFAULT_MIXNET_CONTRACT_ADDRESS: &str = qa::MIXNET_CONTRACT_ADDRESS;
-        pub const DEFAULT_VESTING_CONTRACT_ADDRESS: &str = qa::VESTING_CONTRACT_ADDRESS;
-        pub const DEFAULT_BANDWIDTH_CLAIM_CONTRACT_ADDRESS: &str = qa::BANDWIDTH_CLAIM_CONTRACT_ADDRESS;
         pub const ETH_CONTRACT_ADDRESS: [u8; 20] = qa::_ETH_CONTRACT_ADDRESS;
         pub const ETH_ERC20_CONTRACT_ADDRESS: [u8; 20] = qa::_ETH_ERC20_CONTRACT_ADDRESS;
-        pub const DEFAULT_REWARDING_VALIDATOR: &str = qa::REWARDING_VALIDATOR_ADDRESS;
 
-        pub fn default_validators() -> Vec<ValidatorDetails> {
-            qa::validators()
-        }
-
-        pub fn default_network() -> all::Network {
-            all::Network::QA
-        }
     } else if #[cfg(network = "sandbox")] {
-        pub const BECH32_PREFIX: &str = sandbox::BECH32_PREFIX;
+        pub const DEFAULT_NETWORK: all::Network = all::Network::SANDBOX;
         pub const DENOM: &str = sandbox::DENOM;
 
-        pub const DEFAULT_MIXNET_CONTRACT_ADDRESS: &str = sandbox::MIXNET_CONTRACT_ADDRESS;
-        pub const DEFAULT_VESTING_CONTRACT_ADDRESS: &str = sandbox::VESTING_CONTRACT_ADDRESS;
-        pub const DEFAULT_BANDWIDTH_CLAIM_CONTRACT_ADDRESS: &str = sandbox::BANDWIDTH_CLAIM_CONTRACT_ADDRESS;
         pub const ETH_CONTRACT_ADDRESS: [u8; 20] = sandbox::_ETH_CONTRACT_ADDRESS;
         pub const ETH_ERC20_CONTRACT_ADDRESS: [u8; 20] = sandbox::_ETH_ERC20_CONTRACT_ADDRESS;
-        pub const DEFAULT_REWARDING_VALIDATOR: &str = sandbox::REWARDING_VALIDATOR_ADDRESS;
-
-        pub fn default_validators() -> Vec<ValidatorDetails> {
-            sandbox::validators()
-        }
-
-        pub fn default_network() -> all::Network {
-            all::Network::SANDBOX
-        }
     }
 }
 
+// Since these are lazily constructed, we can afford to switch some of them to stronger types in the
+// future. If we do this, and also get rid of the references we could potentially unify with
+// `NetworkDetails`.
+#[derive(Debug)]
+pub struct DefaultNetworkDetails<'a> {
+    bech32_prefix: &'a str,
+    denom: &'a str,
+    mixnet_contract_address: &'a str,
+    vesting_contract_address: &'a str,
+    bandwidth_claim_contract_address: &'a str,
+    rewarding_validator_address: &'a str,
+    validators: Vec<ValidatorDetails>,
+}
+
+static MAINNET_DEFAULTS: Lazy<DefaultNetworkDetails<'static>> =
+    Lazy::new(|| DefaultNetworkDetails {
+        bech32_prefix: mainnet::BECH32_PREFIX,
+        denom: mainnet::DENOM,
+        mixnet_contract_address: mainnet::MIXNET_CONTRACT_ADDRESS,
+        vesting_contract_address: mainnet::VESTING_CONTRACT_ADDRESS,
+        bandwidth_claim_contract_address: mainnet::BANDWIDTH_CLAIM_CONTRACT_ADDRESS,
+        rewarding_validator_address: mainnet::REWARDING_VALIDATOR_ADDRESS,
+        validators: mainnet::validators(),
+    });
+
+static SANDBOX_DEFAULTS: Lazy<DefaultNetworkDetails<'static>> =
+    Lazy::new(|| DefaultNetworkDetails {
+        bech32_prefix: sandbox::BECH32_PREFIX,
+        denom: sandbox::DENOM,
+        mixnet_contract_address: sandbox::MIXNET_CONTRACT_ADDRESS,
+        vesting_contract_address: sandbox::VESTING_CONTRACT_ADDRESS,
+        bandwidth_claim_contract_address: sandbox::BANDWIDTH_CLAIM_CONTRACT_ADDRESS,
+        rewarding_validator_address: sandbox::REWARDING_VALIDATOR_ADDRESS,
+        validators: sandbox::validators(),
+    });
+
+static QA_DEFAULTS: Lazy<DefaultNetworkDetails<'static>> = Lazy::new(|| DefaultNetworkDetails {
+    bech32_prefix: qa::BECH32_PREFIX,
+    denom: qa::DENOM,
+    mixnet_contract_address: qa::MIXNET_CONTRACT_ADDRESS,
+    vesting_contract_address: qa::VESTING_CONTRACT_ADDRESS,
+    bandwidth_claim_contract_address: qa::BANDWIDTH_CLAIM_CONTRACT_ADDRESS,
+    rewarding_validator_address: qa::REWARDING_VALIDATOR_ADDRESS,
+    validators: qa::validators(),
+});
+
 #[derive(Debug, Serialize, Deserialize, Clone)]
 pub struct ValidatorDetails {
     // it is assumed those values are always valid since they're being provided in our defaults file
@@ -99,15 +116,15 @@ impl ValidatorDetails {
 }
 
 pub fn default_nymd_endpoints() -> Vec<Url> {
-    default_validators()
-        .iter()
+    DEFAULT_NETWORK
+        .validators()
         .map(|validator| validator.nymd_url())
         .collect()
 }
 
 pub fn default_api_endpoints() -> Vec<Url> {
-    default_validators()
-        .iter()
+    DEFAULT_NETWORK
+        .validators()
         .filter_map(|validator| validator.api_url())
         .collect()
 }
diff --git a/contracts/Cargo.lock b/contracts/Cargo.lock
index 444d000fe6..789870574e 100644
--- a/contracts/Cargo.lock
+++ b/contracts/Cargo.lock
@@ -846,6 +846,7 @@ version = "0.1.0"
 dependencies = [
  "cfg-if",
  "hex-literal",
+ "once_cell",
  "serde",
  "thiserror",
  "url",
diff --git a/contracts/mixnet/src/contract.rs b/contracts/mixnet/src/contract.rs
index 4a88167749..b242caf09a 100644
--- a/contracts/mixnet/src/contract.rs
+++ b/contracts/mixnet/src/contract.rs
@@ -335,7 +335,7 @@ pub fn migrate(_deps: DepsMut<'_>, _env: Env, _msg: MigrateMsg) -> Result<Respon
 pub mod tests {
     use super::*;
     use crate::support::tests;
-    use config::defaults::DENOM;
+    use config::defaults::{DEFAULT_NETWORK, DENOM};
     use cosmwasm_std::testing::{mock_dependencies, mock_env, mock_info};
     use cosmwasm_std::{coins, from_binary};
     use mixnet_contract_common::PagedMixnodeResponse;
@@ -345,7 +345,7 @@ pub mod tests {
         let mut deps = mock_dependencies();
         let env = mock_env();
         let msg = InstantiateMsg {
-            rewarding_validator_address: config::defaults::DEFAULT_REWARDING_VALIDATOR.to_string(),
+            rewarding_validator_address: DEFAULT_NETWORK.rewarding_validator_address().to_string(),
         };
         let info = mock_info("creator", &[]);
 
diff --git a/contracts/mixnet/src/support/tests/mod.rs b/contracts/mixnet/src/support/tests/mod.rs
index d38ad0907a..009e38e72e 100644
--- a/contracts/mixnet/src/support/tests/mod.rs
+++ b/contracts/mixnet/src/support/tests/mod.rs
@@ -17,7 +17,7 @@ pub mod test_helpers {
     use crate::mixnodes::storage as mixnodes_storage;
     use crate::mixnodes::transactions::try_add_mixnode;
     use crate::support::tests;
-    use config::defaults::DENOM;
+    use config::defaults::{DEFAULT_NETWORK, DENOM};
     use cosmwasm_std::testing::mock_dependencies;
     use cosmwasm_std::testing::mock_env;
     use cosmwasm_std::testing::mock_info;
@@ -83,7 +83,7 @@ pub mod test_helpers {
     pub fn init_contract() -> OwnedDeps<MemoryStorage, MockApi, MockQuerier<Empty>> {
         let mut deps = mock_dependencies();
         let msg = InstantiateMsg {
-            rewarding_validator_address: config::defaults::DEFAULT_REWARDING_VALIDATOR.to_string(),
+            rewarding_validator_address: DEFAULT_NETWORK.rewarding_validator_address().to_string(),
         };
         let env = mock_env();
         let info = mock_info("creator", &[]);
diff --git a/explorer-api/src/client.rs b/explorer-api/src/client.rs
index f118a0e40d..b38e5a213b 100644
--- a/explorer-api/src/client.rs
+++ b/explorer-api/src/client.rs
@@ -1,11 +1,9 @@
-use network_defaults::{
-    default_api_endpoints, default_network, default_nymd_endpoints, DEFAULT_MIXNET_CONTRACT_ADDRESS,
-};
+use network_defaults::{default_api_endpoints, default_nymd_endpoints, DEFAULT_NETWORK};
 use validator_client::nymd::QueryNymdClient;
 
 pub(crate) fn new_nymd_client() -> validator_client::Client<QueryNymdClient> {
-    let network = default_network();
-    let mixnet_contract = DEFAULT_MIXNET_CONTRACT_ADDRESS.to_string();
+    let network = DEFAULT_NETWORK;
+    let mixnet_contract = network.mixnet_contract_address().to_string();
     let nymd_url = default_nymd_endpoints()[0].clone();
     let api_url = default_api_endpoints()[0].clone();
 
diff --git a/gateway/src/node/client_handling/websocket/connection_handler/eth_events.rs b/gateway/src/node/client_handling/websocket/connection_handler/eth_events.rs
index 53fb2f104e..2bb81aefcd 100644
--- a/gateway/src/node/client_handling/websocket/connection_handler/eth_events.rs
+++ b/gateway/src/node/client_handling/websocket/connection_handler/eth_events.rs
@@ -3,6 +3,7 @@
 
 use bip39::core::str::FromStr;
 use bip39::Mnemonic;
+use config::defaults::DEFAULT_NETWORK;
 use rand::seq::SliceRandom;
 use rand::thread_rng;
 use url::Url;
@@ -19,10 +20,7 @@ use bandwidth_claim_contract::payment::LinkPaymentData;
 use credentials::token::bandwidth::TokenCredential;
 use crypto::asymmetric::identity::{PublicKey, Signature, SIGNATURE_LENGTH};
 use gateway_client::bandwidth::eth_contract;
-use network_defaults::{
-    DEFAULT_BANDWIDTH_CLAIM_CONTRACT_ADDRESS, DEFAULT_MIXNET_CONTRACT_ADDRESS, ETH_EVENT_NAME,
-    ETH_MIN_BLOCK_DEPTH,
-};
+use network_defaults::{ETH_EVENT_NAME, ETH_MIN_BLOCK_DEPTH};
 use validator_client::nymd::{AccountId, NymdClient, SigningNymdClient};
 
 pub(crate) struct ERC20Bridge {
@@ -42,11 +40,11 @@ impl ERC20Bridge {
         let mnemonic =
             Mnemonic::from_str(&cosmos_mnemonic).expect("Invalid Cosmos mnemonic provided");
         let nymd_client = NymdClient::connect_with_mnemonic(
-            config::defaults::default_network(),
+            DEFAULT_NETWORK,
             nymd_url.as_ref(),
-            AccountId::from_str(DEFAULT_MIXNET_CONTRACT_ADDRESS).ok(),
+            AccountId::from_str(DEFAULT_NETWORK.mixnet_contract_address()).ok(),
             None,
-            AccountId::from_str(DEFAULT_BANDWIDTH_CLAIM_CONTRACT_ADDRESS).ok(),
+            AccountId::from_str(DEFAULT_NETWORK.bandwidth_claim_contract_address()).ok(),
             mnemonic,
             None,
         )
diff --git a/nym-wallet/Cargo.lock b/nym-wallet/Cargo.lock
index e33898f473..20ff5cb982 100644
--- a/nym-wallet/Cargo.lock
+++ b/nym-wallet/Cargo.lock
@@ -2781,6 +2781,7 @@ version = "0.1.0"
 dependencies = [
  "cfg-if 1.0.0",
  "hex-literal",
+ "once_cell",
  "serde",
  "thiserror",
  "url",
diff --git a/nym-wallet/src-tauri/src/operations/mixnet/account.rs b/nym-wallet/src-tauri/src/operations/mixnet/account.rs
index 40b05196cd..c792611eb3 100644
--- a/nym-wallet/src-tauri/src/operations/mixnet/account.rs
+++ b/nym-wallet/src-tauri/src/operations/mixnet/account.rs
@@ -129,7 +129,7 @@ async fn _connect_with_mnemonic(
   mnemonic: Mnemonic,
   state: tauri::State<'_, Arc<RwLock<State>>>,
 ) -> Result<Account, BackendError> {
-  let default_network = Network::try_from(config::defaults::default_network())?;
+  let default_network = Network::try_from(config::defaults::DEFAULT_NETWORK)?;
   let mut default_account = None;
   for network in Network::iter() {
     let client = {
@@ -162,6 +162,7 @@ async fn _connect_with_mnemonic(
     w_state.add_client(network, client);
   }
 
-  default_account
-    .ok_or_else(|| BackendError::NetworkNotSupported(config::defaults::default_network()))
+  default_account.ok_or(BackendError::NetworkNotSupported(
+    config::defaults::DEFAULT_NETWORK,
+  ))
 }
diff --git a/validator-api/src/config/mod.rs b/validator-api/src/config/mod.rs
index 7849e4dad1..592149308b 100644
--- a/validator-api/src/config/mod.rs
+++ b/validator-api/src/config/mod.rs
@@ -2,7 +2,7 @@
 // SPDX-License-Identifier: Apache-2.0
 
 use crate::config::template::config_template;
-use config::defaults::{default_api_endpoints, DEFAULT_MIXNET_CONTRACT_ADDRESS};
+use config::defaults::{default_api_endpoints, DEFAULT_NETWORK};
 use config::NymConfig;
 use serde::{Deserialize, Serialize};
 use std::path::PathBuf;
@@ -97,7 +97,7 @@ impl Default for Base {
             local_validator: DEFAULT_LOCAL_VALIDATOR
                 .parse()
                 .expect("default local validator is malformed!"),
-            mixnet_contract_address: DEFAULT_MIXNET_CONTRACT_ADDRESS.to_string(),
+            mixnet_contract_address: DEFAULT_NETWORK.mixnet_contract_address().to_string(),
             #[cfg(feature = "coconut")]
             keypair_bs58: String::default(),
         }
diff --git a/validator-api/src/nymd_client.rs b/validator-api/src/nymd_client.rs
index c6a61ead05..e4efa18279 100644
--- a/validator-api/src/nymd_client.rs
+++ b/validator-api/src/nymd_client.rs
@@ -3,7 +3,7 @@
 
 use crate::config::Config;
 use crate::rewarding::{error::RewardingError, IntervalRewardParams, MixnodeToReward};
-use config::defaults::{default_network, DEFAULT_VALIDATOR_API_PORT};
+use config::defaults::{DEFAULT_NETWORK, DEFAULT_VALIDATOR_API_PORT};
 use mixnet_contract_common::{
     ContractStateParams, Delegation, ExecuteMsg, GatewayBond, IdentityKey, Interval, MixNodeBond,
     MixnodeRewardingStatusResponse, RewardedSetNodeStatus, RewardedSetUpdateDetails,
@@ -37,7 +37,7 @@ impl Client<QueryNymdClient> {
             .parse()
             .unwrap();
         let nymd_url = config.get_nymd_validator_url();
-        let network = default_network();
+        let network = DEFAULT_NETWORK;
 
         let mixnet_contract = config
             .get_mixnet_contract_address()
@@ -67,7 +67,7 @@ impl Client<SigningNymdClient> {
             .parse()
             .unwrap();
         let nymd_url = config.get_nymd_validator_url();
-        let network = default_network();
+        let network = DEFAULT_NETWORK;
 
         let mixnet_contract = config
             .get_mixnet_contract_address()
diff --git a/validator-api/src/rewarding/mod.rs b/validator-api/src/rewarding/mod.rs
index f14432db56..6d4c4484ca 100644
--- a/validator-api/src/rewarding/mod.rs
+++ b/validator-api/src/rewarding/mod.rs
@@ -9,7 +9,7 @@ use crate::storage::models::{
     FailedMixnodeRewardChunk, PossiblyUnrewardedMixnode, RewardingReport,
 };
 use crate::storage::ValidatorApiStorage;
-use config::defaults::DENOM;
+use config::defaults::DEFAULT_NETWORK;
 use log::{error, info};
 use mixnet_contract_common::mixnode::NodeRewardParams;
 use mixnet_contract_common::{
@@ -201,15 +201,18 @@ impl Rewarder {
         info!("Rewarding pool stats");
         info!(
             "-- Reward pool: {} {}",
-            interval_reward_params.reward_pool, DENOM
+            interval_reward_params.reward_pool,
+            DEFAULT_NETWORK.denom()
         );
         info!(
             "---- Interval reward pool: {} {}",
-            interval_reward_params.period_reward_pool, DENOM
+            interval_reward_params.period_reward_pool,
+            DEFAULT_NETWORK.denom()
         );
         info!(
             "-- Circulating supply: {} {}",
-            interval_reward_params.circulating_supply, DENOM
+            interval_reward_params.circulating_supply,
+            DEFAULT_NETWORK.denom()
         );
 
         // 1. get list of all currently bonded nodes