Port numbers are generally not assigned in the same way as an IP address or even assigned at all. Ports are always there. They can be opened, closed or accessed by programs or protocols.
So in answer to your question, organisations in general do not assign port numbers as they are not unique.
do't know
"Globally, Internet numbers are managed by the Internet Assigned Numbers Authority, an organization operated by the Internet Corporation for Assigned Names and Numbers (ICANN)."
If I understand the question aright; different port numbers are used to identify different protocols. Port numbers between 1 and 1023 are well-known numbers and standards define which protocol uses which. FTP uses port number 21, HTTP uses port 80.
Packet-filtering firewall
Whatever network that mobile device is currently in assigns the care of address. Since it is only a temporary address for when you are in that network.
the switchport access vlan 99 command is used to designate a specific VLAN for a switch port, allowing you to control how traffic on that port is treated and segregated from traffic on other ports and VLANs in the network. This is a fundamental configuration step in building and managing VLANs within a network infrastructure.
No one assigns the N-number. You get to request one. You can request one on the FAA website.
ephemeral port numbers and well known port numbers
Ephemeral port numbers and well-known port numbers.
There is no single person or organization that controls the internet. It's more like an agreement and cooperation among many different organizations.Specific international organizations control certain ASPECT of the Internet; for example, IANA assigns Internet numbers (known as IP numbers); other organizations regulate other specific aspects.
In the United States, the Federal Aviation Administration (FAA)
TCP port numbers, as well as UDP port numbers, are 2-byte numbers, therefore, the range is from 0 to 65535.
In North America, the American Registry for Internet Numbers (ARIN) is the organization that allocates IP Addresses for Internet Service Providers (ISP).
There are ...1.dynamic port2.registred port3.wall know port.
There is no single person or organization that controls the internet. It's more like an agreement and cooperation among many different organizations.Specific international organizations control certain ASPECT of the Internet; for example, IANA assigns Internet numbers (known as IP numbers); other organizations regulate other specific aspects.
SDS
Internet Corporation for Assigned Names and Numbers (ICANN)
Internet Corporation for Assigned Names and Numbers (ICANN)