1048 Sun's NEO Object Request Broker - User Port

1048 is a User Port. Transport Protocol TCP UDP , 1048 Service Name neod2, Service Name Description: Sun's NEO Object Request Broker.

Port	Protocol	Service Name	Description	Source
1048	TCP UDP	neod2	Sun's NEO Object Request Broker	IANA
1048	TCP UDP	neod2	Sun's NEO Object Request Broker	bekkoame

Port	Service Name	Description
336		Unassigned
3963	thrp	Teran Hybrid Routing Protocol
4783		Unassigned
5174		Unassigned
5342		Unassigned
5997		Unassigned
6443	sun-sr-https	Service Registry Default HTTPS Domain
6791	hnm	Halcyon Network Manager
7690		Unassigned
8256		Unassigned

A port is an endpoint of communication in an operating system. While the term is also used for hardware devices, in software it is a logical construct that identifies a specific process or a type of service.

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);

The Well Known Ports are assigned by the IANA and on most systems can only be used by system (or root) processes or by programs executed by privileged users. Ports are used in the TCP [RFC793] to name the ends of logical connections which carry long term conversations. For the purpose of providing services to unknown callers, a service contact port is defined. This list specifies the port used by the server process as its contact port. The contact port is sometimes called the "well-known port". To the extent possible, these same port assignments are used with the UDP [RFC768]. The range for well-known ports managed by the IANA is 0-1023.
DYNAMIC AND/OR PRIVATE PORTS Registered Ports are those from 1024 through 49151.
The Dynamic and/or Private Ports are those from 49152 through 65535