diff --git a/common/network-defaults/src/sandbox2.rs b/common/network-defaults/src/sandbox2.rs
index 17db52286a..c032b9b60c 100644
--- a/common/network-defaults/src/sandbox2.rs
+++ b/common/network-defaults/src/sandbox2.rs
@@ -3,13 +3,13 @@
 
 use crate::{DenomDetails, ValidatorDetails};
 
-pub(crate) const BECH32_PREFIX: &str = "nymt";
+pub(crate) const BECH32_PREFIX: &str = "ns";
 
 pub const MIX_DENOM: DenomDetails = DenomDetails::new("unymt", "nymt", 6);
 pub const STAKE_DENOM: DenomDetails = DenomDetails::new("unyxt", "nyxt", 6);
 
-pub(crate) const MIXNET_CONTRACT_ADDRESS: &str = "";
-pub(crate) const VESTING_CONTRACT_ADDRESS: &str = "";
+pub(crate) const MIXNET_CONTRACT_ADDRESS: &str = "ns17p9rzwnnfxcjp32un9ug7yhhzgtkhvl9jfksztgw5uh69wac2pgsrtzqqx";
+pub(crate) const VESTING_CONTRACT_ADDRESS: &str = "ns1aakfpghcanxtc45gpqlx8j3rq0zcpyf49qmhm9mdjrfx036h4z5sptexdf";
 pub(crate) const BANDWIDTH_CLAIM_CONTRACT_ADDRESS: &str =
     "";
 pub(crate) const COCONUT_BANDWIDTH_CONTRACT_ADDRESS: &str =
@@ -19,12 +19,12 @@ pub(crate) const _ETH_CONTRACT_ADDRESS: [u8; 20] =
     hex_literal::hex!("8e0DcFF7F3085235C32E845f3667aEB3f1e83133");
 pub(crate) const _ETH_ERC20_CONTRACT_ADDRESS: [u8; 20] =
     hex_literal::hex!("E8883BAeF3869e14E4823F46662e81D4F7d2A81F");
-pub(crate) const REWARDING_VALIDATOR_ADDRESS: &str = "";
+pub(crate) const REWARDING_VALIDATOR_ADDRESS: &str = "ns1a4542dv9tvsa95zyztqsev6erjd2l3ywxhxnpg";
 
 pub(crate) const STATISTICS_SERVICE_DOMAIN_ADDRESS: &str = "";
 pub(crate) fn validators() -> Vec<ValidatorDetails> {
     vec![ValidatorDetails::new(
-        "https://sandbox2-validator.nymtech.net",
-        Some("https://sandbox2-validator.nymtech.net/api"),
+        "https://sandbox2-validator1.nymtech.net",
+        Some("https://sandbox2-validator-api1.nymte.ch/api"),
     )]
 }