I can get AT&T DSL which only has port 25 blocked, 6mbps x 768kbps.... Or I can get cable with a 107x5 mbps (or the 20x2mbps I have purchased). The Cable blocks the following ports, all supposedly because of worms:
25 TCP SMTP Both* SMTP Relays
80 TCP HTTP Inbound Web servers, worms
135 UDP NetBios Both Net Send Spam/Pop-ups, Worms
136-139UDP,TCP NetBios Both Worms, Network Neighborhood
445 TCP MS-DS/ NetBios Both Worms, Network Neighhood
1433 TCP MS-SQL Inbound Worms, Trojans
1434 UDP MS-SQL Inbound Worms, SQLslammer
1900 UDP MS-DS/ NetBios Both Worms, Network Neighborhood
I run a small web server on https and have had no trouble. I run ssh, no problems. If you want the blocks removed they charge for a very expensive business connections.
I bought hosting and moved my websites to dump AT&T DSL. It was too slow. I am 4400 ft from the switch, so I won't be getting their newer services.