Why Is This Happening?
If your number is being flagged as spam on the receiving end, there are two likely causes. The first is that the receiving carrier has marked your number based on their own analytics. The second, and more common cause, is that your number has been spoofed by spammers or scammers, which causes carriers and analytics providers to associate it with unwanted call activity. Unfortunately, spoofed numbers travel along the same paths as legitimate calls and look identical, so there is no way to identify or stop the spoofing directly.
You can report suspected spoofed calls to the FCC for investigation at fcc.gov/consumers/guides/spoofing-and-caller-id.
Contacting Carriers Directly
If you know which carrier or provider is falsely flagging, blocking, or labeling your number, you can contact them directly using the information below to request a review.
- AT&T: Call 800-337-5373, email dl-GFMOBusinessFra@ATT.com, or submit via hiyahelp.zendesk.com
- CenturyLink: Email robocall.reporting@centurylink.com or contact Nomorobo at nomorobo.com/contact
- First Orion: Submit via calltransparency.com
- Frontier: Email nospam@ftr.com or contact Nomorobo
- Hiya: Submit via hiyahelp.zendesk.com. Legitimate businesses can also register at connect.hiya.com
- NoMoRobo: Contact via nomorobo.com/contact or email reports@nomorobo.com. Include the calling number, the name associated with it, and an explanation of why it is not spam
- Sprint: Call 888-211-4727 or report at reportarobocall.com
- T-Mobile: Submit via callreporting.t-mobile.com or through First Orion at calltransparency.com
- TNS: Report via reportarobocall.com. TNS also offers alert subscriptions for businesses who want to be notified when their number is flagged
- US Cellular: Call 888-944-9400 or visit uscellular.com/support/robocall
- Verizon: Submit via voicespamfeedback.com
- Windstream: Call 800-347-1991 or visit windstream.com/Support/Phone/Troubleshooting-repair
- YouMail: Email TNissues@youmail.com. Include the calling number, the associated name, and details on why it is not spam
Contacting Analytics Providers
Analytics providers are the companies that feed spam and blocking data to the major wireless carriers. Registering with them directly can help clear your number’s reputation across multiple carriers at once.
- Call Transparency (First Orion): calltransparency.com validates that you are a legitimate business and verifies your calling numbers.
- Free Caller Registry (First Orion, Hiya, and TNS): freecallerregistry.com is a free portal that helps businesses reach the analytics companies supporting the major US wireless carriers.
Note that analytics companies will review submitted requests and may still flag calls based on their own research or data, even after a request has been filed.