CenturyLink Settings and Support Guide

A handy reference guide to Centurylink ISP email, account log in, settings, speed test, and support.

pay your centurylink bill

Here's every way that you can pay your residential CenturyLink bill online.

centurylink speed test and outage check

Experiencing slower than expected internet speeds? Start diagnosing the problem by running a speed test:
Launch CenturyLink speed test

Here are some third-party speed tests you should also try:

Is CenturyLink currently down?

Start by rebooting your modem (and router, if you have a separate one), and try from different devices. If you’re still unable to access CenturyLink services, you can check Down Detector and Twitter to see if other customers are reporting problems:

centurylink modem information

Modem admin URL (for most devices)
Modem admin username and password If it’s a modem supplied by CenturyLink, the administrator username and password should be found on a sticker on the device.
DNS (dynamic ip customers) primary DNS:
secondary DNS:
DNS (static ip customers) primary DNS:
secondary DNS:

Can you buy you own modem for CenturyLink?

Yes you can! Because CenturyLink charges residential customers $10 a month to lease a modem, you can quickly make your money back by buying your own.

CenturyLink offers two types of internet access: DSL and fiber optic. If you are buying your own, make sure that your modem is compatible with your service. Cable modems will not work.

In theory, any modern DSL or fiber modem that supports the required technology features (ADSL, ADSL2+, VDSL2, GPON and Pair Bonding) should work, but it’s safest to stick with CenturyLink-approved routers. The full list is available, but the modems below are their top picks.

Modems are also known as gateways, and may also have dual functionality as a WiFi router. Please note that a router and modem aren’t the same thing. A modem provides connectivity to your internet service provider, while a router distributes that internet connection to the devices in your home over WiFi or ethernet.

Top Centurylink-compatible DSL modems

Actiontec C3000A Amazon Rating: 4.2 out of 5
Check price on Amazon
Technicolor C1100T Amazon Rating: 3.7 out of 5
Check price on Amazon
Zyxel C1100Z Amazon Rating: 3.9 out of 5
Check price on Amazon
Zyxel C3000Z Amazon Rating: 4.0 out of 5
Check price on Amazon

Top Centurylink-compatible fiber optic modems

Greenwave C4000XG Not available on Amazon.
Zyxel C3000Z Amazon Rating: 4.0 out of 5
Check price on Amazon

How do I return my CenturyLink modem?

After you’ve purchased your own modem, you can return your CenturyLink-supplied modem. You can print a return label and drop it off at UPS.

centurylink customer support phone numbers