@VZWSupport Twitter Chatter & Discussion of Spectrum Mobile Coverage Problems
Review
comments: AT&T, Verizon, Sprint, T-Mobile, MetroPCS, TracFone Click "Add" on upper right corner of map, enter address and select carrier. Add problem & frequency (dead zone, dropped calls, network congestion) Share issue with carrier & friends to build support to fix problem. Detailed Video Instructions
Spectrum Mobile is a mobile virtual network operator (MVNO) that operates on the cellular network infrastructure of other major carriers in the United States. As of my knowledge cutoff in September 2021, Spectrum Mobile uses two networks:
Verizon Wireless: Spectrum Mobile primarily utilizes Verizon's network for its coverage. It means that when you use Spectrum Mobile, your device will connect to Verizon's network for voice, text, and data services.
Spectrum Mobile also has access to its parent company's network, Charter Communications. Charter Communications is a cable operator that offers internet, TV, and phone services under the Spectrum brand. While Spectrum Mobile mainly relies on Verizon's network, it can also use Charter's Wi-Fi hotspots for data connectivity when available.
Larger Map
Review
comments: AT&T, Verizon, Sprint, T-Mobile, MetroPCS, TracFone 
Click "Add" on upper right corner of map, enter address and select carrier.
Add problem & frequency (dead zone, dropped calls, network congestion)
Share issue with carrier & friends to build support to fix problem.