diff --git a/lists/zscaler/list.json b/lists/zscaler/list.json
new file mode 100644
index 0000000..f8bf12b
--- /dev/null
+++ b/lists/zscaler/list.json
@@ -0,0 +1,79 @@
+{
+  "description": "Zscaler IP address ranges (https://config.zscaler.com/api/zscaler.net/hubs/cidr/json/required)",
+  "list": [
+    "104.129.192.0/22",
+    "104.129.196.0/23",
+    "104.129.202.0/23",
+    "112.196.99.180/32",
+    "136.226.118.0/23",
+    "136.226.120.0/23",
+    "136.226.142.0/23",
+    "136.226.144.0/21",
+    "136.226.152.0/23",
+    "136.226.156.0/22",
+    "136.226.160.0/23",
+    "136.226.174.0/23",
+    "136.226.176.0/21",
+    "136.226.184.0/23",
+    "136.226.194.0/23",
+    "136.226.196.0/23",
+    "136.226.94.0/23",
+    "147.161.200.0/23",
+    "147.161.204.0/23",
+    "147.161.208.0/23",
+    "147.161.238.0/23",
+    "147.161.252.0/23",
+    "165.225.0.0/23",
+    "165.225.18.0/24",
+    "165.225.240.0/21",
+    "165.225.4.0/24",
+    "165.225.44.0/24",
+    "165.225.48.0/24",
+    "165.225.6.0/23",
+    "165.225.72.0/22",
+    "167.103.30.0/23",
+    "167.103.32.0/22",
+    "170.85.32.0/22",
+    "185.46.212.0/22",
+    "199.168.148.0/24",
+    "213.152.228.0/24",
+    "216.218.133.192/26",
+    "216.52.207.64/26",
+    "2400:7aa0:1b11::/48",
+    "2400:7aa0:1c11::/48",
+    "2400:7aa0:1c12::/48",
+    "2400:7aa0:1e11::/48",
+    "2605:4300:1211::/48",
+    "2605:4300:1212::/48",
+    "2605:4300:1214::/48",
+    "2605:4300:1216::/48",
+    "2605:4300:1311::/48",
+    "2605:4300:1312::/48",
+    "2605:4300:1315::/48",
+    "2605:4300:1411::/48",
+    "2605:4300:1412::/47",
+    "2605:4300:1414::/48",
+    "2605:4300:1418::/48",
+    "2a03:eec0:1211::/48",
+    "2a03:eec0:1212::/48",
+    "2a03:eec0:1216::/48",
+    "2a03:eec0:1311::/48",
+    "2a03:eec0:1312::/48",
+    "2a03:eec0:1317::/48",
+    "2a03:eec0:1411::/48",
+    "2a03:eec0:1414::/47",
+    "64.74.126.64/26",
+    "70.39.159.0/24",
+    "72.52.96.0/26",
+    "8.25.203.0/24",
+    "89.167.131.0/24"
+  ],
+  "matching_attributes": [
+    "ip-src",
+    "ip-dst",
+    "domain|ip"
+  ],
+  "name": "List of known Zscaler IP address ranges",
+  "type": "cidr",
+  "version": 20230810
+}
diff --git a/tools/generate-zscaler.py b/tools/generate-zscaler.py
new file mode 100755
index 0000000..7d38257
--- /dev/null
+++ b/tools/generate-zscaler.py
@@ -0,0 +1,35 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+import json
+
+from generator import download_to_file, get_version, write_to_file, get_abspath_source_file, consolidate_networks
+
+
+def process(file, dst):
+    with open(get_abspath_source_file(file), 'r') as json_file:
+        zscaler_ip_list = json.load(json_file)
+    l = []
+
+    for prefix in zscaler_ip_list['hubPrefixes']:
+        l.append(prefix)
+
+    warninglist = {
+        'name': 'List of known Zscaler IP address ranges',
+        'version': get_version(),
+        'description': 'Zscaler IP address ranges (https://config.zscaler.com/api/zscaler.net/hubs/cidr/json/required)',
+        'type': 'cidr',
+        'list': consolidate_networks(l),
+        'matching_attributes': ["ip-src", "ip-dst", "domain|ip"]
+    }
+
+    write_to_file(warninglist, dst)
+
+
+if __name__ == '__main__':
+    zscaler_url = "https://config.zscaler.com/api/zscaler.net/hubs/cidr/json/required"
+    zscaler_file = "zscaler_ip-ranges.json"
+    zscaler_dst = "zscaler"
+
+    download_to_file(zscaler_url, zscaler_file)
+    process(zscaler_file, zscaler_dst)