G4 Communications ensures dependable, prompt and courteous service. We understand that you rely on us for your critical communications needs, and because of this we are committed to exceeding your expectations. G4 Communications guarantees our services with industry-leading service level agreements (SLAs), comprehensive customer care, 24x7x365 network monitoring.

For technical support please contact us at 603-703-0405.

Our customer care center is available between 7am - 10pm Monday through Friday, 9am - 3pm on Saturdays, and 10am - 4pm on Sundays. Our Network Operations Center is available 24 hours a day, 7 days a week.



Technical Information:

  • G4 Name Servers
  • G4 Incoming Mail (POP) Servers
  • G4 Outgoing mail (SMTP) Servers
  • G4 Application Servers
  • G4 Mailing Lists


  • G4 Name Servers
    Hostname IP Address Customer Class
    dns1.g4.net 216.177.0.33 Customer Use DNS
    dns2.g4.net 216.177.0.34 Customer Use DNS
    dns3.g4.net 66.211.154.2 Customer Use DNS

    Note: G4 Name Servers will only answer recursive queries from IP addresses that are owned by G4.

    G4 Incoming Mail (POP) Servers
    Hostname Customer Class
    mail.g4com.net T3/T1/Broadband
    mail.metro2000.net Dialup
    mail.surfgate.net Dialup
    mail.auth.net Dialup


    G4 Outgoing Mail (SMTP) Servers
    Hostname Customer Class
    smtp.g4.net T3/T1/Broadband
    smtp.metro2000.net Dialup
    smtp.surfgate.net Dialup
    smtp.auth.net Dialup
    smtp2.auth.net Nationwide Dialup


    G4 Application Servers
    Hostname Application
    voicemail.g4.net Voicemail for G4 phone service
    webmail.g4c.net Webmail for g4c.net
    webmailg4com.net Webmail for g4com.net
    webmail.metro2000.net Webmail for metro2000.net
    webserver1 CPanel
    webserver5 CPanel
    webserver6 CPanel


    G4 Mailing Lists
    List Name Purpose
    G4 Operational Status Notifications of network events and planned maintenance operations.
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