diff --git a/gnosis/eth/clients/etherscan_client.py b/gnosis/eth/clients/etherscan_client.py
index e56023899..786b60639 100644
--- a/gnosis/eth/clients/etherscan_client.py
+++ b/gnosis/eth/clients/etherscan_client.py
@@ -58,6 +58,7 @@ class EtherscanClient:
         EthereumNetwork.SCROLL: "https://scrollscan.com",
         EthereumNetwork.KROMA: "https://kromascan.com",
         EthereumNetwork.KROMA_SEPOLIA: "https://sepolia.kromascan.com",
+        EthereumNetwork.BLAST_SEPOLIA_TESTNET: "https://sepolia.blastscan.io",
     }
 
     NETWORK_WITH_API_URL = {
@@ -98,6 +99,7 @@ class EtherscanClient:
         EthereumNetwork.SCROLL: "https://api.scrollscan.com",
         EthereumNetwork.KROMA: "https://api.kromascan.com",
         EthereumNetwork.KROMA_SEPOLIA: "https://api-sepolia.kromascan.com",
+        EthereumNetwork.BLAST_SEPOLIA_TESTNET: "https://api-sepolia.blastscan.io",
     }
     HTTP_HEADERS = {
         "User-Agent": "curl/7.77.0",
diff --git a/gnosis/eth/ethereum_network.py b/gnosis/eth/ethereum_network.py
index 6355efd00..02f61c53c 100644
--- a/gnosis/eth/ethereum_network.py
+++ b/gnosis/eth/ethereum_network.py
@@ -1183,6 +1183,7 @@ class EthereumNetwork(Enum):
     FRAME_TESTNET = 68840142
     T_E_A_M_BLOCKCHAIN = 88888888
     JOYS_DIGITAL_TESTNET = 99415706
+    BLAST_SEPOLIA_TESTNET = 168587773
     GATHER_MAINNET_NETWORK = 192837465
     KANAZAWA = 222000222
     NEON_EVM_DEVNET = 245022926
diff --git a/gnosis/safe/addresses.py b/gnosis/safe/addresses.py
index 332f1e915..3c6177760 100644
--- a/gnosis/safe/addresses.py
+++ b/gnosis/safe/addresses.py
@@ -869,6 +869,10 @@
         ("0x3E5c63644E683549055b9Be8653de26E0B4CD36E", 657757, "1.3.0+L2"),
         ("0xd9Db270c1B5E3Bd161E8c8503c55cEABeE709552", 657761, "1.3.0"),
     ],
+    EthereumNetwork.BLAST_SEPOLIA_TESTNET: [
+        ("0x3E5c63644E683549055b9Be8653de26E0B4CD36E", 1087958, "1.3.0+L2"),
+        ("0xd9Db270c1B5E3Bd161E8c8503c55cEABeE709552", 1087964, "1.3.0"),
+    ],
 }
 
 PROXY_FACTORIES: Dict[EthereumNetwork, List[Tuple[str, int]]] = {
@@ -1412,4 +1416,7 @@
     EthereumNetwork.LISK_SEPOLIA_TESTNET: [
         ("0xa6B71E26C5e0845f74c812102Ca7114b6a896AB2", 657735),  # v1.3.0
     ],
+    EthereumNetwork.BLAST_SEPOLIA_TESTNET: [
+        ("0xa6B71E26C5e0845f74c812102Ca7114b6a896AB2", 1087898),  # v1.3.0
+    ],
 }