Security

Do you need an IoT SIM with fixed IP?

Short answer

A fixed IP on your IoT SIM means it always has the same IP address, which simplifies bidirectional access from your backend, firewalling, and troubleshooting. You usually need one to send commands to the device or maintain sessions; if you only upload, sometimes you don't.

Public vs private

Public fixed IP: reachable from Internet; useful if you access without VPN. High security risk. Private fixed IP inside a private APN: reachable only from your corporate network; the recommended option for 90% of cases.

Cost and lead time

Typically €1-2/mo per SIM. With a 1,000-SIM pool it can drop to €0.30-0.50/mo. Turn-up: 24-72 h if the APN is already set.

IPv4 vs IPv6 in IoT

The IPv4 pool is scarce and some operators only assign IPv6 in IoT by default. If your backend doesn't speak IPv6, negotiate private IPv4 per APN before signing.

Private fixed IP + private APN = standard combo
Public IP only if justified
Check IPv4 vs IPv6 before signing
Cost €0.30-2/mo per SIM

Tailored offer

Fixed-IP + private-APN quote

Get a quote for your fleet: private fixed IP per SIM, dedicated APN, access from your VPN. Price in 24 h.

Frequently asked questions

Do I need a fixed IP to send MQTT commands?+

Not if the device initiates the MQTT connection to the broker (the usual pattern). Yes, if you want an endpoint reachable from your backend for other protocols (e.g. maintenance SSH).

Does fixed IP work in roaming?+

Depends on the operator. Multi-operator IoT providers keep the private fixed IP in roaming; traditional carriers may drop it in some countries.

Can I use my own IP range?+

Yes, via a BYOIP (Bring Your Own IP) agreement or a private subnet you define. Common in large projects with strict corporate addressing.