Welcome to AT&T!

We look forward to serving you


Important information regarding transitioning your service to AT&T

Over the last few months we’ve been communicating with you, as a Cellular One of East Illinois non-prepaid wireless customer, to alert you of the upcoming transition to the AT&T network.

You will receive a packet in the mail between July 5, 2016 and July 21, 2016 that will include a new SIM card and instructions to transition your service to the AT&T network.

Open your packet immediately
- call 866-634-0861
- have the SIM card handy for all devices that will be transitioning

During the call our Representative will walk you through the steps to transition your service.

Thank you for your patience and your continued business throughout this transition.

Return to Cellular One Website.