Yes, Nomorobo works on more than 60 VoIP landline carriers in the US.
Major supported carriers include: Comcast Xfinity, FiOS by Verizon, AT&T Uverse, Spectrum, Frontier, Cox, and more.
Click HERE to check if your number is supported.
Click HERE for a full list of supported landline carriers.
Please Note: Nomorobo is NOT supported on traditional/analog/copper wire landlines.