SecondSim for PayPal:
✓ Verified Compatible

PayPal blocks virtual VoIP numbers. SecondSim provides genuine UK mobile lines on Vodafone's physical cellular network that pass automated security checks and receive 2FA codes immediately.

Automated carrier lookup checks recognize SecondSim as a legitimate mobile subscriber on Vodafone UK core network.

PayPal uses a multi-layered phone validation system. During initial account setup or when adding a phone number, PayPal checks the number against a carrier classification database. VoIP and virtual numbers are flagged, and PayPal either refuses to send the SMS entirely or deprioritises the message through a low-reliability delivery route (which explains the common "code arrived 20 minutes late" problem).

For PayPal Business accounts, the scrutiny is even higher. PayPal cross-references the phone number with your business address to ensure geographic consistency, and VoIP numbers that lack a geographic footprint often trigger manual review holds.

SecondSim provides a genuine UK mobile number that PayPal's system recognises as a standard carrier subscriber. SMS codes are routed through the mobile network's native SS7 signalling — the same infrastructure that carries texts for EE, Vodafone, and Three customers — ensuring instant, reliable delivery every time.