UWT Mobile was a consumer phone service that resold access to three networks: AT&T, Sprint and T-Mobile. Wikipedia lists it among defunct US virtual carriers but records no end date. BestCellular.com found no other source on when or why it closed, or where customers went.
UWT Mobile is gone
Wikipedia’s table of defunct US mobile virtual network operators lists UWT Mobile for the personal market on AT&T, Sprint and T-Mobile, using GSM, CDMA, UMTS and LTE. The end date is shown as unknown, and the table carries no notes. BestCellular.com found no launch coverage, shutdown notice or company statement to add dates.
If you had a UWT Mobile line
No source names a carrier that took over its customers. Its lines ran on AT&T, Sprint or T-Mobile, but that does not mean accounts moved to any of them. If your old number still works, it sits with the carrier you moved it to. Ask that carrier for your account number and port-out PIN.
UWT Mobile’s defunct status rests on one source, Wikipedia’s defunct MVNO table, which does not give an end date.
How UWT Mobile ended
- Date not stated: UWT Mobile operates as a consumer MVNO on AT&T, Sprint and T-Mobile.
- Date not stated: Service ends. Wikipedia lists it as defunct with the end date marked unknown.
Why it ended
The sources do not say. Wikipedia records only the market, the three host networks and the technologies, with no end date and no notes. BestCellular.com found no press release, news report or filing about UWT Mobile. With no dated record, this page does not guess at a cause or a year.
How to find who holds an old number now
- Check an old bill or payment record. It names the company that billed you last.
- Run the number through a carrier lookup tool. It shows the carrier that holds the number today.
- Call that carrier and ask for the account number and transfer PIN.
- Start the port from the new carrier. Never cancel the old line first.
Your right to keep a number
Number portability is federal law, not a carrier policy. The rule is the FCC’s: Portability: Keeping Your Phone Number When Changing Service Providers.
Best Cellular · Carrier reference
US carriers by host network
All 317 US carriers and MVNOs we track, including those that shut down.
- Verizon45
- T-Mobile54
- AT&T40
- Uses more than one29
- Owns its own towers55
- Not recorded yet94
How we verified this page
BestCellular.com tracks active carriers and defunct ones. We keep both, because people still search for brands that no longer exist. Every fact on this page comes from the sources listed below, and we leave a detail out when no source states it. Where sources disagree, this page says so. If you can document a correction, tell us and we will check it against the sources.
Tracked and active are different counts on this site. This brand counts in our tracked total, not in our active total, so it does not appear in tools built for live carriers.
Questions about UWT Mobile
Is UWT Mobile still available?
No. Wikipedia lists the brand among defunct US mobile virtual network operators. It records no end date, and BestCellular.com found no sign of an active service.
Which network did UWT Mobile use?
Three of them. Wikipedia lists AT&T, Sprint and T-Mobile as host networks, using GSM, CDMA, UMTS and LTE. Which network a given line used depended on the SIM or phone.
What happened to UWT Mobile customers?
The sources do not say. No successor carrier is named and no account transfer is documented. Anyone with a working number should contact the carrier that holds it now.
Did UWT Mobile customers move to T-Mobile?
Not according to any source BestCellular.com found. UWT Mobile used T-Mobile and Sprint among its networks, but no source says its accounts were moved to T-Mobile or any other carrier.
Sources
Checked October 13, 2026.
- Wikipedia: List of mobile virtual network operators in the United States: Lists UWT Mobile as defunct: personal market, AT&T, Sprint and T-Mobile hosts, GSM, CDMA, UMTS and LTE, end date unknown, no notes. Checked October 13, 2026.
Best Cellular. “UWT Mobile: What Happened,” BestCellular.com. https://bestcellular.com/uwt-mobile/
Free to reuse with credit. Licence, sources and the full dataset. All defunct carriers are listed on carriers that shut down.