diff --git a/public/index.html b/public/index.html
index dc6591a0..d7d14422 100644
--- a/public/index.html
+++ b/public/index.html
@@ -81,8 +81,8 @@
   <script src="vendor/qrcode.js"></script>
   <script src="app.js?v=1773993532"></script>
   <script src="home.js?v=1773977027"></script>
-  <script src="packets.js?v=1773999188"></script>
-  <script src="map.js?v=1774018568" onerror="console.error('Failed to load:', this.src)"></script>
+  <script src="packets.js?v=1774023016"></script>
+  <script src="map.js?v=1774023016" onerror="console.error('Failed to load:', this.src)"></script>
   <script src="channels.js?v=1773977027" onerror="console.error('Failed to load:', this.src)"></script>
   <script src="nodes.js?v=1773977027" onerror="console.error('Failed to load:', this.src)"></script>
   <script src="traces.js?v=1773972187" onerror="console.error('Failed to load:', this.src)"></script>
diff --git a/public/map.js b/public/map.js
index 386783e2..80634f4d 100644
--- a/public/map.js
+++ b/public/map.js
@@ -268,6 +268,9 @@
 
   async function loadNodes() {
     try {
+      // Load regions from config + observed IATAs
+      try { REGION_NAMES = await api('/config/regions', { ttl: 3600 }); } catch {}
+
       const data = await api(`/nodes?limit=10000&lastHeard=${filters.lastHeard}`, { ttl: CLIENT_TTL.nodeList });
       nodes = data.nodes || [];
 
@@ -308,7 +311,7 @@
     }
   }
 
-  const REGION_NAMES = { SJC: 'San Jose', SFO: 'San Francisco', OAK: 'Oakland', MTV: 'Mountain View', SCZ: 'Santa Cruz', MRY: 'Monterey', PAO: 'Palo Alto' };
+  let REGION_NAMES = {};
 
   function buildJumpButtons() {
     const el = document.getElementById('mcJumps');
diff --git a/public/packets.js b/public/packets.js
index 0a092fc8..c63266d8 100644
--- a/public/packets.js
+++ b/public/packets.js
@@ -1090,11 +1090,10 @@
     return '<div class="byop-row"><span class="byop-key">' + key + '</span><span class="byop-val">' + val + '</span></div>';
   }
 
-  // Load regions from config
+  // Load regions from config API
   (async () => {
     try {
-      // We'll use a simple approach - hardcode from config
-      regionMap = {"SJC":"San Jose, US","SFO":"San Francisco, US","OAK":"Oakland, US","MRY":"Monterey, US","LAR":"Los Angeles, US"};
+      regionMap = await api('/config/regions', { ttl: 3600 });
     } catch {}
   })();
 
diff --git a/server.js b/server.js
index 9b413cd1..76e483a9 100644
--- a/server.js
+++ b/server.js
@@ -188,6 +188,18 @@ app.get('/api/config/cache', (req, res) => {
   res.json(config.cacheTTL || {});
 });
 
+app.get('/api/config/regions', (req, res) => {
+  // Merge config regions with any IATA codes seen from observers
+  const regions = { ...(config.regions || {}) };
+  try {
+    const rows = db.db.prepare("SELECT DISTINCT iata FROM observers WHERE iata IS NOT NULL").all();
+    for (const r of rows) {
+      if (r.iata && !regions[r.iata]) regions[r.iata] = r.iata; // fallback to code itself
+    }
+  } catch {}
+  res.json(regions);
+});
+
 app.get('/api/perf', (req, res) => {
   const summary = {};
   for (const [path, ep] of Object.entries(perfStats.endpoints)) {
@@ -1664,7 +1676,7 @@ app.get('/api/observers', (req, res) => {
   const observers = db.getObservers();
   const oneHourAgo = new Date(Date.now() - 3600000).toISOString();
   // Join observer location from nodes table (observers are nodes — same pubkey)
-  const nodeLocStmt = db.db.prepare("SELECT lat, lon, role FROM nodes WHERE public_key = ?");
+  const nodeLocStmt = db.db.prepare("SELECT lat, lon, role FROM nodes WHERE public_key = ? COLLATE NOCASE");
   const result = observers.map(o => {
     const obsPackets = pktStore.byObserver.get(o.id) || [];
     const lastHour = { count: obsPackets.filter(p => p.timestamp > oneHourAgo).length };