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    List of TCP and UDP port numbers
558 559 560 561 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 623 624 625 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 664 665 666 666 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 750 750 751 751 752 752 753 753 754 755 756 758 758 759 759 760 760 761 761 762 762 763 763 764 764 765 765 766 767 768 769 769 770 770 771 771 772 772 773 773 774 774 774 775 775 775 776 776 777 778 779 780 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 800 800 801 801 802 803 804 805 806 807 808 809 810 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824

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A port is an application-specific or process-specific software construct serving as a communications endpoint in a computer's host operating system.

Service names and port numbers are used to distinguish between different services that run over transport protocols such as TCP, UDP, DCCP, and SCTP.

Port numbers are assigned in various ways, based on three ranges: System Ports (0-1023), User Ports (1024-49151), and the Dynamic and/or Private Ports (49152-65535);