What is a fixed IP SIM card?

Fixed public IP SIM cards provide a consistent, static IP address every time a device connects to the mobile network. This differs from standard SIMs where the public IP address changes regularly and is dynamically shared with multiple other customers (CGNAT).

They are ideal for M2M devices and IoT solutions, including CCTV remote access, digital signage, internet failover and transport and logistics telemetry.

Why Buy From Kazalia?

We offer 4G/5G fixed IP SIMs with monthly data allowances from 1GByte to unlimited at market leading prices starting from just £10/month (+ VAT). Our fixed IP solutions are available for all UK mobile operators (EE, O2, Three, Vodafone), in addition to multinet roaming SIMs that work across the four UK networks and overseas. 

We have years of experience working alongside businesses to provide reliable and cost-effective SIM solutions covering a wide range of applications.

Benefits of Public Fixed IP

  • Direct device access via the public internet (no VPN required)

  • Easier to integrate with cloud platforms, alrm monitoring centres and web applications

  • Ideal for port forwarding, remote management access and VPN servers

  • Improved network reliability and geolocation stability

Security Considerations

Security is a vital aspect of using fixed IP SIM cards. While fixed public IPs offer convenience, they also require strict device level security:

  • Enable router firewalls and limit port forwarding

  • If possible whitelist the source IP addresses that can remotely access

  • Use strong passwords for authentication