diff --git a/FreeDMR-SAMPLE-commented.cfg b/FreeDMR-SAMPLE-commented.cfg
index cd0d2ab..c88007f 100755
--- a/FreeDMR-SAMPLE-commented.cfg
+++ b/FreeDMR-SAMPLE-commented.cfg
@@ -202,3 +202,4 @@ TS2_STATIC:
 DEFAULT_REFLECTOR: 0
 ANNOUNCEMENT_LANGUAGE: en_GB
 GENERATOR: 1
+ALLOW_UNREG_ID: False
diff --git a/FreeDMR-SAMPLE.cfg b/FreeDMR-SAMPLE.cfg
index 46f851d..4467e97 100755
--- a/FreeDMR-SAMPLE.cfg
+++ b/FreeDMR-SAMPLE.cfg
@@ -95,3 +95,4 @@ TS2_STATIC:
 DEFAULT_REFLECTOR: 0
 ANNOUNCEMENT_LANGUAGE: en_GB
 GENERATOR: 100
+ALLOW_UNREG_ID: False
diff --git a/bridge_master.py b/bridge_master.py
index d8fdfa7..732d7c8 100644
--- a/bridge_master.py
+++ b/bridge_master.py
@@ -641,12 +641,12 @@ def threadAlias():
     logger.debug('(ALIAS) starting alias thread')
     reactor.callInThread(aliasb)
 
-def setAlias(_peer_ids,_subscriber_ids, _talkgroup_ids):
-    peer_ids, subscriber_ids, talkgroup_ids = _peer_ids, _subscriber_ids, _talkgroup_ids
+def setAlias(_peer_ids,_subscriber_ids, _talkgroup_ids, _local_subscriber_ids):
+    peer_ids, subscriber_ids, talkgroup_ids,local_subscriber_ids = _peer_ids, _subscriber_ids, _talkgroup_ids, _local_subscriber_ids
     
 def aliasb():
-    _peer_ids, _subscriber_ids, _talkgroup_ids = mk_aliases(CONFIG)
-    reactor.callFromThread(setAlias,_peer_ids, _subscriber_ids, _talkgroup_ids)
+    _peer_ids, _subscriber_ids, _talkgroup_ids, _local_subscriber_ids = mk_aliases(CONFIG)
+    reactor.callFromThread(setAlias,_peer_ids, _subscriber_ids, _talkgroup_ids, _local_subscriber_ids)
 
 def ident():
     for system in systems:
@@ -2805,7 +2805,7 @@ if __name__ == '__main__':
         signal.signal(sig, sig_handler)
 
     # Create the name-number mapping dictionaries
-    peer_ids, subscriber_ids, talkgroup_ids = mk_aliases(CONFIG)
+    peer_ids, subscriber_ids, talkgroup_ids, local_subscriber_ids = mk_aliases(CONFIG)
     
     #Add special IDs to DB
     subscriber_ids[900999] = 'D-APRS'
@@ -2813,6 +2813,7 @@ if __name__ == '__main__':
     
     CONFIG['_SUB_IDS'] = subscriber_ids
     CONFIG['_PEER_IDS'] = peer_ids
+    CONFIG['_LOCAL_SUBSCRIBER_IDS'] = local_subscriber_ids
     
     
     
diff --git a/config.py b/config.py
index 0a18f20..82cd556 100755
--- a/config.py
+++ b/config.py
@@ -181,7 +181,8 @@ def build_config(_config_file):
                     'SUBSCRIBER_URL': config.get(section, 'SUBSCRIBER_URL'),
                     'TGID_URL': config.get(section, 'TGID_URL'),
                     'STALE_TIME': config.getint(section, 'STALE_DAYS') * 86400,
-                    'SUB_MAP_FILE': config.get(section, 'SUB_MAP_FILE')
+                    'SUB_MAP_FILE': config.get(section, 'SUB_MAP_FILE'),
+                    'LOCAL_SUBSCRIBER_FILE': config.get(section, 'LOCAL_SUBSCRIBER_FILE')
                 })
                 
             elif section == 'MYSQL':
diff --git a/docker-configs/docker-compose_install.sh b/docker-configs/docker-compose_install.sh
index 569f4d9..785731c 100644
--- a/docker-configs/docker-compose_install.sh
+++ b/docker-configs/docker-compose_install.sh
@@ -137,6 +137,7 @@ TS2_STATIC:
 DEFAULT_REFLECTOR: 0
 ANNOUNCEMENT_LANGUAGE: en_GB
 GENERATOR: 100
+ALLOW_UNREG_ID: False
 
 [ECHO]
 MODE: PEER
diff --git a/hblink.py b/hblink.py
index 2bd58dc..464b9ac 100755
--- a/hblink.py
+++ b/hblink.py
@@ -812,7 +812,11 @@ class HBSYSTEM(DatagramProtocol):
         _int_peer_id = int(_int_peer_id)
         _subscriber_ids = self._CONFIG['_SUB_IDS']
         _peer_ids = self._CONFIG['_PEER_IDS']
-        if _int_peer_id in _subscriber_ids:
+        _local_subscriber_ids = self._CONFIG['_LOCAL_SUBSCRIBER_IDS']
+        
+        if _int_peer_id in _local_subscriber_ids:
+            return _local_subscriber_ids[_int_peer_id]
+        elif _int_peer_id in _subscriber_ids:
             return _subscriber_ids[_int_peer_id]
         elif _int_peer_id in _peer_ids:
             return _peer_ids[_int_peer_id]
@@ -1332,7 +1336,13 @@ def mk_aliases(_config):
     if talkgroup_ids:
         logger.info('(ALIAS) ID ALIAS MAPPER: talkgroup_ids dictionary is available')
         
-    return peer_ids, subscriber_ids, talkgroup_ids
+    local_subscriber_ids = mk_id_dict(_config['ALIASES']['PATH'], _config['ALIASES']['LOCAL_SUBSCRIBER_FILE'])
+    if subscriber_ids:
+        logger.info('(ALIAS) ID ALIAS MAPPER: local_subscriber_ids dictionary is available')
+    
+        
+        
+    return peer_ids, subscriber_ids, talkgroup_ids, local_subscriber_ids
 
 
 #************************************************
diff --git a/loro.cfg b/loro.cfg
index 302f687..c1cb24f 100644
--- a/loro.cfg
+++ b/loro.cfg
@@ -189,4 +189,5 @@ TS2_STATIC:
 DEFAULT_REFLECTOR: 0
 GENERATOR: 1
 ANNOUNCEMENT_LANGUAGE:es_ES
+ALLOW_UNREG_ID: True