diff --git a/primitives/core/src/crypto.rs b/primitives/core/src/crypto.rs
index 7608b295e33fc..2c375f68eb685 100644
--- a/primitives/core/src/crypto.rs
+++ b/primitives/core/src/crypto.rs
@@ -578,6 +578,8 @@ ss58_address_format!(
 		(46, "reserved46", "Reserved for future use (46).")
 	Reserved47 =>
 		(47, "reserved47", "Reserved for future use (47).")
+	AventusAccount =>
+		(65, "aventus", "Aventus Chain mainnet, standard account (*25519).")
 	CrustAccount =>
 		(66, "crust", "Crust Network, standard account (*25519).")
 	// Note: 48 and above are reserved.
diff --git a/ss58-registry.json b/ss58-registry.json
index bb11a51b43583..cae6577e2157c 100644
--- a/ss58-registry.json
+++ b/ss58-registry.json
@@ -442,6 +442,15 @@
 			"standardAccount": null,
 			"website": null
 		},
+		{
+			"prefix": 65,
+			"network": "aventus",
+			"displayName": "AvN Mainnet",
+			"symbols": ["AVT"],
+			"decimals": [18],
+			"standardAccount": "*25519",
+			"website": "https://aventus.io"
+		},
 		{
 			"prefix": 66,
 			"network": "crust",