It was asked earlier on the previous thread by
@human ...
The short answer is yes. They would have to go to different operators of the networks with a separate warrant. The good thing is that there are only three of them - ATT, Verizon, and Sprint. All other cell phone service providers buy time/capacity from one of those three as they have no physical networks of their own.
An example of this is the ATT Cell Tower Warrant issued in the Missy Bevers case out of Midlothian, TX. (Note: at the link below it will show pages 1 to 8 but page 1 is blank so scroll down or enter 2 in the box where 1 is.)
Tower Warrant 5-5-16
One of the orders of the warrant was for ATT to identify all cell towers within range of the Creekside Church in Midlothian, TX (where Missy was murdered). This resulted in all cell towers within 11 miles all around or a circle with a diameter of 22 miles. From that, ATT was further ordered to return records for all phones that connected to any of those towers. Given the population within that circle which was just south of the Dallas-Fort Worth metroplex it likely resulted in records returned for easily tens of thousands if not over 100,000 cell phones - despite the limited time range of 3am to 5am.
I expect that law enforcement would have done the same kind of thing for cell towers in the Barron, WI area. Given the smaller population of the area there would likewise be a smaller amount of records returned. Naturally, if the persons involved did not bring a phone with them or did not have a phone turned on then the phone would not show up in the records.