diff --git a/pyrogram/client.py b/pyrogram/client.py
index 3009f0f6..9a31b3d7 100644
--- a/pyrogram/client.py
+++ b/pyrogram/client.py
@@ -95,6 +95,10 @@ class Client(Methods):
             Pass True to connect to Telegram using IPv6.
             Defaults to False (IPv4).
 
+        alt_port (``bool``, *optional*):
+            Pass True to connect to Telegram using alternative port (5222).
+            Defaults to False (443).
+
         proxy (``dict``, *optional*):
             The Proxy settings as dict.
             E.g.: *dict(scheme="socks5", hostname="11.22.33.44", port=1234, username="user", password="pass")*.
@@ -205,6 +209,7 @@ class Client(Methods):
         system_version: str = SYSTEM_VERSION,
         lang_code: str = LANG_CODE,
         ipv6: bool = False,
+        alt_port: bool = False,
         proxy: dict = None,
         test_mode: bool = False,
         bot_token: str = None,
@@ -234,6 +239,7 @@ class Client(Methods):
         self.system_version = system_version
         self.lang_code = lang_code
         self.ipv6 = ipv6
+        self.alt_port = alt_port
         self.proxy = proxy
         self.test_mode = test_mode
         self.bot_token = bot_token
diff --git a/pyrogram/connection/connection.py b/pyrogram/connection/connection.py
index 618c92a5..2a0f0955 100644
--- a/pyrogram/connection/connection.py
+++ b/pyrogram/connection/connection.py
@@ -37,13 +37,14 @@ class Connection:
         4: TCPIntermediateO
     }
 
-    def __init__(self, dc_id: int, test_mode: bool, ipv6: bool, proxy: dict, media: bool = False, mode: int = 3):
+    def __init__(self, dc_id: int, test_mode: bool, ipv6: bool, alt_port: bool, proxy: dict, media: bool = False, mode: int = 3):
         self.dc_id = dc_id
         self.test_mode = test_mode
         self.ipv6 = ipv6
+        self.alt_port = alt_port
         self.proxy = proxy
         self.media = media
-        self.address = DataCenter(dc_id, test_mode, ipv6, media)
+        self.address = DataCenter(dc_id, test_mode, ipv6, alt_port, media)
         self.mode = self.MODES.get(mode, TCPAbridged)
 
         self.protocol = None  # type: TCP
diff --git a/pyrogram/session/auth.py b/pyrogram/session/auth.py
index 7df4fede..65581f03 100644
--- a/pyrogram/session/auth.py
+++ b/pyrogram/session/auth.py
@@ -41,6 +41,7 @@ class Auth:
         self.dc_id = dc_id
         self.test_mode = test_mode
         self.ipv6 = client.ipv6
+        self.alt_port = client.alt_port
         self.proxy = client.proxy
 
         self.connection = None
@@ -76,7 +77,7 @@ class Auth:
         # The server may close the connection at any time, causing the auth key creation to fail.
         # If that happens, just try again up to MAX_RETRIES times.
         while True:
-            self.connection = Connection(self.dc_id, self.test_mode, self.ipv6, self.proxy)
+            self.connection = Connection(self.dc_id, self.test_mode, self.ipv6, self.alt_port, self.proxy)
 
             try:
                 log.info(f"Start creating a new auth key on DC{self.dc_id}")
diff --git a/pyrogram/session/internals/data_center.py b/pyrogram/session/internals/data_center.py
index d3146263..4435da5b 100644
--- a/pyrogram/session/internals/data_center.py
+++ b/pyrogram/session/internals/data_center.py
@@ -60,7 +60,7 @@ class DataCenter:
         4: "2001:067c:04e8:f004:0000:0000:0000:000b"
     }
 
-    def __new__(cls, dc_id: int, test_mode: bool, ipv6: bool, media: bool) -> Tuple[str, int]:
+    def __new__(cls, dc_id: int, test_mode: bool, ipv6: bool, alt_port: bool, media: bool) -> Tuple[str, int]:
         if test_mode:
             if ipv6:
                 ip = cls.TEST_IPV6[dc_id]
@@ -79,5 +79,4 @@ class DataCenter:
                     ip = cls.PROD_MEDIA.get(dc_id, cls.PROD[dc_id])
                 else:
                     ip = cls.PROD[dc_id]
-
-            return ip, 443
+            return ip, 5222 if alt_port else 443
diff --git a/pyrogram/session/session.py b/pyrogram/session/session.py
index 6fea9337..fbcec870 100644
--- a/pyrogram/session/session.py
+++ b/pyrogram/session/session.py
@@ -97,6 +97,7 @@ class Session:
                 self.dc_id,
                 self.test_mode,
                 self.client.ipv6,
+                self.client.alt_port,
                 self.client.proxy,
                 self.is_media
             )