How Do You Block A Phone Number From A Landline May 2026

Three distinct approaches exist, each with decreasing compatibility with true POTS lines.

A landline telephone traditionally refers to a phone connected via copper wires (PSTN) or a fixed wireless link. Unlike smartphones, which manage call handling locally in firmware, traditional landlines rely on the carrier’s central office switch. Consequently, the ability to “block a number” is not inherent to the hardware but must be provisioned by the service provider or external devices. how do you block a phone number from a landline

| Method | POTS Compatible | Monthly Cost | Max Blocks | Blocks Anonymous | |----------------|----------------|--------------|------------|------------------| | Carrier *60 | Yes | $2–$5 | 10–25 | No (use *77) | | Hardware device | Yes | $0 | 200–2000 | Varies by model | | Nomorobo | No (needs VoIP) | $0 | Unlimited | Yes (heuristic) | Consequently, the ability to “block a number” is