TCP and UDP ports used by Apple software products

Learn about TCP and UDP ports used by Apple products such as macOS, macOS Server, Apple Remote Desktop, and iCloud. Many of these are well-known, industry-standard ports. 

Network administrators can use this information to make sure that Mac computers and other Apple devices can connect to services such as the App Store and Apple's software-update servers. 

Ports used by Apple products

This is a quick-reference guide showing common examples, not a comprehensive list of ports. This guide is updated periodically with information available at the time of publication.

Some software might use different ports and services, so it can be helpful to use port-watching software when deciding how to set up firewalls or similar access-control schemes.

Some services might use more than one of these ports. For example, a VPN service can use up to four different ports. When you find a product in this list, search (Command-F) in your browser for that name, then repeat your search (Command-G) to locate all occurrences of that product.

Some firewalls allow selective configuration of UDP or TCP ports with the same number, so it's important to know the type of port you're configuring. For example, NFS can use TCP 2049, UDP 2049, or both. If your firewall doesn't allow you to specify the type of port, configuring one type of port probably configures the other.

Port TCP or
Service or
protocol name
RFC2 Service name3 Used by
7 TCP/UDP echo 792 echo
20 TCP File Transport Protocol (FTP) 959 ftp-data
21 TCP FTP control 959 ftp
22 TCP Secure Shell (SSH), SSH File Transfer Protocol (SFTP), and Secure copy (scp) 4253 ssh Xcode Server (hosted and remote Git+SSH; remote SVN+SSH)
23 TCP Telnet 854 telnet
25 TCP Simple Mail Transfer Protocol (SMTP) 5321 smtp

Mail (sending email); iCloud Mail (sending email)

53 TCP/UDP Domain Name System (DNS) 1034 domain
67 UDP Bootstrap Protocol Server (BootP, bootps) 951 bootps NetBoot via DHCP
68 UDP Bootstrap Protocol Client (bootpc) 951 bootpc NetBoot via DHCP
69 UDP Trivial File Transfer Protocol (TFTP) 1350 tftp
79 TCP Finger 1288 finger
80 TCP Hypertext Transfer Protocol (HTTP) 2616 http World Wide Web, FaceTime, iMessage, iCloud, QuickTime Installer, Maps, iTunes U, Apple Music, iTunes Store, Podcasts, Internet Radio, Software Update (OS X Lion or earlier), Mac App Store, RAID Admin, Backup, Calendar, WebDAV, Final Cut Server, AirPlay, macOS Internet Recovery, Profile Manager, Xcode Server (Xcode app, hosted and remote Git HTTP, remote SVN HTTP)
88 TCP Kerberos 4120 kerberos Kerberos, including Screen Sharing authentication
106 TCP Password Server
(unregistered use)
3com-tsmux macOS Server Password Server
110 TCP Post Office Protocol (POP3), 
Authenticated Post Office Protocol (APOP)
1939 pop3 Mail (receiving email)
111 TCP/UDP Remote Procedure Call (RPC) 1057, 1831 sunrpc Portmap (sunrpc)
113 TCP Identification Protocol 1413 ident
119 TCP Network News Transfer Protocol (NNTP) 3977 nntp Apps that read newsgroups.
123 UDP Network Time Protocol (NTP) 1305 ntp Date & Time preferences, network time server synchronization, Apple TV network time server sync
137 UDP Windows Internet Naming Service (WINS) netbios-ns
138 UDP NETBIOS Datagram Service netbios-dgm Windows Datagram Service, Windows Network Neighborhood
139 TCP Server Message Block (SMB) netbios-ssn Microsoft Windows file and print services, such as Windows Sharing in macOS
143 TCP Internet Message Access Protocol (IMAP) 3501 imap Mail (receiving email)
161 UDP Simple Network Management Protocol (SNMP) 1157 snmp
192 UDP OSU Network Monitoring System osu-nms AirPort Base Station PPP status or discovery (certain configurations), AirPort Admin Utility, AirPort Express Assistant
311 TCP Secure server administration asip-webadmin Server app, Server Admin, Workgroup Manager, Server Monitor, Xsan Admin
312 TCP Xsan administration vslmp Xsan Admin (OS X Mountain Lion v10.8 and later)
389 TCP Lightweight Directory Access Protocol (LDAP) 4511 ldap Apps that look up addresses, such as Mail and Address Book
427 TCP/UDP Service Location Protocol (SLP) 2608 svrloc Network Browser
443 TCP Secure Sockets Layer (SSL or HTTPS) 2818 https TLS websites, iTunes Store, Software Update (OS X Mountain Lion and later), Spotlight Suggestions, Mac App Store, Maps, FaceTime, Game Center, iCloud authentication and DAV Services (Contacts, Calendars, Bookmarks), iCloud backup and apps (Calendars, Contacts, Find My iPhone, Find My Friends, Mail, iMessage, Documents & Photo Stream), iCloud Key Value Store (KVS), iPhoto Journals, AirPlay, macOS Internet Recovery, Profile Manager, Dictation, Siri, Xcode Server (hosted and remote Git HTTPS, remote SVN HTTPS, Apple Developer registration), Push notifications (if necessary)
445 TCP Microsoft SMB Domain Server microsoft-ds
464 TCP/UDP kpasswd 3244 kpasswd
465 TCP Message Submission for Mail (Authenticated SMTP)   smtp (legacy) Mail (sending mail)
500 UDP ISAKMP/IKE 2408 isakmp macOS Server VPN service
500 UDP Wi-Fi Calling 5996 IKEv2 Wi-Fi Calling
514 TCP shell shell
514 UDP Syslog syslog
515 TCP Line Printer (LPR), Line Printer Daemon (LPD) printer Printing to a network printer, Printer Sharing in macOS
532 TCP netnews netnews
548 TCP Apple Filing Protocol (AFP) over TCP afpovertcp AppleShare, Personal File Sharing, Apple File Service
554 TCP/UDP Real Time Streaming Protocol (RTSP) 2326 rtsp AirPlay, QuickTime Streaming Server (QTSS), streaming media players
587 TCP Message Submission for Mail (Authenticated SMTP) 4409 submission Mail (sending mail), iCloud Mail (SMTP authentication)
600–1023 TCP/UDP Mac OS X RPC-based services ipcserver NetInfo
623 UDP Lights-Out-Monitoring asf-rmcp Lights Out Monitoring (LOM) feature of Intel-based Xserve computers, Server Monitor
625 TCP Open Directory Proxy (ODProxy) (unregistered use) dec_dlm Open Directory, Server app, Workgroup Manager; Directory Services in OS X Lion or earlier

This port is registered to DEC DLM
626 TCP AppleShare Imap Admin (ASIA) asia IMAP administration (Mac OS X Server v10.2.8 or earlier)
626 UDP serialnumberd (unregistered use) asia Server serial number registration (Xsan, Mac OS X Server v10.3 – v10.6)
631 TCP Internet Printing Protocol (IPP) 2910 ipp macOS Printer Sharing, printing to many common printers
636 TCP Secure LDAP ldaps
660 TCP Server administration mac-srvr-admin Server administration tools for Mac OS X Server v10.4 or earlier, including AppleShare IP
687 TCP Server administration asipregistry Server administration tools for Mac OS X Server v10.6 or earlier, including AppleShare IP
749 TCP/UDP Kerberos 5 admin/changepw kerberos-adm
985 TCP NetInfo Static Port
993 TCP Mail IMAP SSL imaps iCloud Mail (SSL IMAP)
995 TCP/UDP Mail POP SSL pop3s
1085 TCP/UDP WebObjects webobjects
1099, 8043 TCP Remote RMI and IIOP Access to JBOSS rmiregistry
1220 TCP QT Server Admin qt-serveradmin Administration of QuickTime Streaming Server
1640 TCP Certificate Enrollment Server cert-responder Profile Manager in macOS Server 5.2 and earlier
1649 TCP IP Failover kermit
1701 UDP L2TP l2f macOS Server VPN service
1723 TCP PPTP pptp macOS Server VPN service
1900 UDP SSDP ssdp Bonjour
2049 TCP/UDP Network File System (NFS) (version 3 and 4) 3530 nfsd
2195 TCP Apple Push Notification Service (APNS) —  Push notifications
2196 TCP Apple Push Notification Service (APNS) —  Feedback service
2197 TCP Apple Push Notification Service (APNS) Push notifications
2336 TCP Mobile account sync appleugcontrol Home directory synchronization
3004 TCP iSync csoftragent
3031 TCP/UDP Remote AppleEvents eppc Program Linking, Remote Apple Events
3283 TCP/UDP Apple Remote Desktop and Classroom net-assistant, classroom Apple Remote Desktop 2.0 or later (Reporting feature), Classroom for iPad 1.0 - 3.3
3284 TCP Classroom File Transfer classroom Classroom app (document sharing)
3285 TCP Classroom classroom Classroom for iPad 2.3 and later, Classroom for Mac 1.0 and later
3306 TCP MySQL mysql
3478–3497 UDP nat-stun-port - ipether232port FaceTime, Game Center
3632 TCP Distributed compiler distcc
3659 TCP/UDP Simple Authentication and Security Layer (SASL) apple-sasl macOS Server Password Server
3689 TCP Digital Audio Access Protocol (DAAP) daap iTunes Music Sharing, AirPlay
3690 TCP/UDP Subversion svn Xcode Server (anonymous remote SVN)
4111 TCP XGrid xgrid
4398 UDP Game Center
4488 TCP Apple Wide Area Connectivity Service   awacs-ice  
4500 UDP IPsec NAT Traversal 4306 ipsec-msft macOS Server VPN service
4500 UDP Wi-Fi Calling 5996 IKEv2 Wi-Fi Calling
5003 TCP FileMaker - name binding and transport fmpro-internal
5009 TCP (unregistered use) winfs AirPort Utility, AirPort Express Assistant
5100 TCP socalia macOS camera and scanner sharing
5222 TCP XMPP (Jabber) 3920 jabber-client Jabber messages
5223 TCP Apple Push Notification Service (APNS) iCloud DAV Services (Contacts, Calendars, Bookmarks), Push Notifications, FaceTime, iMessage, Game Center, Photo Stream
5228 TCP Spotlight Suggestions, Siri
5297 TCP Messages (local traffic)
5350 UDP NAT Port Mapping Protocol Announcements Bonjour
5351 UDP NAT Port Mapping Protocol nat-pmp Bonjour
5353 UDP Multicast DNS (MDNS) 3927 mdns Bonjour, AirPlay, Home Sharing, Printer Discovery
5432 TCP PostgreSQL postgresql Can be enabled manually in OS X Lion Server (previously enabled by default for ARD 2.0 Database)
5897–5898 UDP (unregistered use) xrdiags
5900 TCP Virtual Network Computing (VNC)
(unregistered use)
vnc-server Apple Remote Desktop 2.0 or later (Observe/Control feature)
Screen Sharing (Mac OS X 10.5 or later)
5988 TCP WBEM HTTP wbem-http Apple Remote Desktop 2.x
See also
6970–9999 UDP QuickTime Streaming Server
7070 TCP RTSP (unregistered use), Automatic Router Configuration Protocol (ARCP) arcp QuickTime Streaming Server (RTSP)
7070 UDP RTSP alternate arcp QuickTime Streaming Server
8000–8999 TCP irdmi Web service, iTunes Radio streams
8005 TCP Tomcat remote shutdown
8008 TCP iCal service http-alt Mac OS X Server v10.5 or later
8080 TCP Alternate port for Apache web service http-alt Also JBOSS HTTP in Mac OS X Server 10.4 or earlier
8085–8087 TCP Wiki service Mac OS X Server v10.5 or later
8088 TCP Software Update service radan-http Mac OS X Server v10.4 or later
8089 TCP Web email rules Mac OS X Server v10.6 or later
8096 TCP Web Password Reset Mac OS X Server v10.6.3 or later
8170 TCP HTTPS (web service/site)

Podcast Capture/podcast CLI

8171 TCP HTTP (web service/site)

Podcast Capture/podcast CLI

8175 TCP Pcast Tunnel pcastagentd (such as for control operations and camera)
8443 TCP iCal service (SSL) pcsync-https Mac OS X Server v10.5 or later (JBOSS HTTPS in Mac OS X Server 10.4 or earlier)
8800 TCP Address Book service sunwebadmin Mac OS X Server v10.6 or later
8843 TCP Address Book service (SSL) Mac OS X Server v10.6 or later
8821, 8826
TCP Stored Final Cut Server
8891 TCP ldsd Final Cut Server (data transfers)
9006 TCP Tomcat standalone Mac OS X Server v10.6 or earlier
9100 TCP Printing Printing to certain network printers
9418 TCP/UDP git pack transfer git Xcode Server (remote git)
10548 TCP Apple Document Sharing Service serverdocs macOS Server iOS file sharing
11211 memcached (unregistered use) Calendar Server
16080 TCP Web service with performance cache
16384–16403 UDP Real-Time Transport Protocol (RTP), Real-Time Control Protocol (RTCP) connected, — Messages (Audio RTP, RTCP; Video RTP, RTCP)
16384–16387 UDP Real-Time Transport Protocol (RTP), Real-Time Control Protocol (RTCP) connected, — FaceTime, Game Center
16393–16402 UDP Real-Time Transport Protocol (RTP), Real-Time Control Protocol (RTCP) FaceTime, Game Center
16403–16472 UDP Real-Time Transport Protocol (RTP), Real-Time Control Protocol (RTCP) Game Center
24000–24999 TCP med-ltp Web service with performance cache
42000–42999 TCP iTunes Radio streams
49152–65535 TCP Xsan Xsan Filesystem Access
49152– 65535 UDP  
50003 FileMaker server service
50006 FileMaker helper service

1. The service registered with the Internet Assigned Numbers Authority, except where noted as “unregistered use.” 

2. The number of a Request for Comment (RFC) document that defines the service or protocol. RFC documents are maintained by RFC Editor.

3. In the output of Terminal commands, the port number might be replaced by this Service Name, which is the label listed in /etc/services.

FaceTime is not available in all countries or regions.

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The application firewall in macOS is not a port-based firewall. It controls access by app, instead of by port. 

Information about products not manufactured by Apple, or independent websites not controlled or tested by Apple, is provided without recommendation or endorsement. Apple assumes no responsibility with regard to the selection, performance, or use of third-party websites or products. Apple makes no representations regarding third-party website accuracy or reliability. Contact the vendor for additional information.

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