What Ports does Suddenlink block and why?

Suddenlink blocks the following ports: 135-139 UDP/TCP, 445. This is done by recommendation from the Department of Homeland Security.

Anti Spam - Suddenlink provides spam filtering for domain email owned by Suddenlink. Anti-spam filters are not all inclusive and may require additional filtering on Customer premises. Contact Suddenlink for more details at 800.490.9604.

Anti-Spyware - Suddenlink does not provide or support anti-spyware software. Anti-spyware programs are the sole responsibility of the end-user.

Anti-Virus - Suddenlink provides viral protection at the server level only. Only Suddenlink owned domains are scanned for viruses. This virus protection is not all-inclusive. Additional scanning is the responsibility of the end-user and is best accomplished by using software intended for that purpose.

We do have some products that offer managed firewalls and protection. See: https://www.suddenlinkbusiness.com/managed-services

Call 855-270-5527 and find out why more businesses are choosing Suddenlink Business, or click "Contact Sales" to send us a message.

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