VZW blocking IRC ports how to remove this feature?

Question

It is known that VZW is blocking access to certain IRC servers such as undernet yet other servers work fine.  There is a trail of posts on this board of people having this same problem and almost a admission of such from a 2nd level Tier support person.
Question:  How do I unblock the ports or the IP's being blocked by VZW?

Answer 1

We would have to know the specific ports being used by the IRC client before we can confirm if VZW is actively blocking or not.  IRC does have its own well known ports, but if your application or one of its services is not using it then it will not work. Custom ports will never work. In general VZW blocks anything that is not on a "well known" and "privilaged" (> 1024)  internet port.
Here is a good starter list of ports that are normally allowed:
http://www.webopedia.com/quick_ref/portnumbers.asp
Well known ports are actually specified by IANA in RFC 1700:
http://www.ietf.org/rfc/rfc1700.txt
If I look at my MiFi I can only see the following ports are available which is what I generally use as my reference to if a port is open by default or not on the VZW network:
20 - FTP
23 - Telnet
28 - RTP
80 - HTML
90 - DNS
110 - POP3
143 - IMAP
443 - HTTPS
??? - VPN Pass-through (various ports)
As you can see there are only the basic internet ports to choose from.  If a port or application is not on this list and does not work by default then we can assume that VZW is blocking it from the NAT firewall level.  If that is the case then there is nothing you can do except work around the problem.
The only work arounds for blocked ports are as follows:
1. Setup and use a VPN to connect to a VPN server on a different network that does allow the communication
2. Try to find a 3G only connection that is not on the new VZW 4G LTE SIM card network
3. Configure your application to use an approved port number
4. Leave VZW and purchase a different wireless service provider