What is a Fixed IP IoT SIM Card?

IoT glossary

What is a Fixed IP IoT SIM Card?

An introduction to fixed IP SIM cards.

A fixed public IP SIM card or static private IP SIM card is assigned a specific Internet Protocol (IP) which doesn’t change. This contrasts with typical mobile devices which are assigned a dynamic IP address. This means that the IP address can change every time the device connects to the mobile network.

A fixed public IP SIM card and static private IP SIM cards are typically used with IoT devices because a consistent stable connection is required and allows the operator to always be able to securely access the device remotely without compromising the network.

Through this article, we will explore the differences between fixed public IP SIM cards versus static private IP SIM cards, the advantages versus dynamic IP SIM cards as well as exploring some of the common applications.

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What is the difference between a fixed IP and a dynamic IP SIM card?

There are several key differences between fixed IP and dynamic IP SIM Cards. Understanding your requirements is critical to determining which is the correct solution for your application. To help, we have developed a series of questions to help you determine the right option for you.

  • Do you require remote access to devices or systems that use cellular connectivity?
  • Are you hosting any services or applications that rely on consistent, unchanging IP addresses for remote access or communication?
  • Do you experience issues with your current SIM card's IP address changing, affecting critical connections or services?
  • Are you managing IoT devices, or remote monitoring equipment that necessitate a stable IP address for consistent operation?
  • Is your business heavily reliant on remote access or remote connections for operations or data transfer?

If you have answered yes to any of these questions, then a fixed public IP SIM card or static private IP is the right option for you. Take a look at some of the key differences between a fixed IP and a dynamic IP SIM card below.

FeatureFixed IP SIM cardDynamic IP SIM card
IP address assignmentAssigns a specific, unchanging IP address to the deviceAssigns dynamic or changing IP addresses to the device
ConsistencyOffers consistent connectivity with the same IP addressConnectivity varies with a different IP address each time
Use casesIdeal for stable, crucial connections (IoT, industrial applications)Used in regular consumer devices (smartphones, tablets)
ManagementSimplifies device management and remote accessibilityMay require additional configuration due to changing IPs
Security and hosting servicesUseful for services reliant on fixed IP for securityMay need extra security measures due to changing IPs

What are the types of fixed IP SIM cards?

In the world of fixed IP SIM cards, there are two types:

Fixed public IP SIM cards

A fixed public IP SIM card can be accessed over the internet as it is hosted in the public domain. This is particularly useful for devices that need to be interacted with from multiple sites like CCTV cameras, point-of-sale systems or smart meters. This feature is crucial for centralised management, remote troubleshooting, real-time monitoring, and data retrieval, enabling efficient operations and enhanced control over distributed systems.

Static private IP SIM cards

Static private IP SIM cards offer heightened security compared to dynamic or public IP SIM cards because they are managed within the confines of the business's private network. Access to these fixed private IP SIM cards is restricted and can only be obtained using the appropriate credentials, thus ensuring a more secure and controlled environment for data transmission and device connectivity. This segregation from the public domain helps shield sensitive information and devices from unauthorised access or external threats, significantly enhancing the overall safety and security of the network infrastructure.

What are some common applications for fixed IP SIM cards?

Fixed IP SIM cards in retail point-of-sale (POS) systems

Point-of-sale (POS) systems are used to transfer financial information from mobile devices to payment terminals. To ensure a stable and consistent connection for the POS system, a fixed IP SIM card is used. In cases where businesses operate in areas with unreliable internet connectivity or require a consistent connection without interruptions, fixed IP SIM cards can provide a stable connection compared to other types. For POS systems that handle sensitive financial data, fixed private IP SIM cards offer a more secure connection. These SIM cards can be integrated into a secure, private network to prevent potential breaches or data theft. For businesses that require remote access to their POS systems, a fixed IP SIM card provides this access.

Fixed IP SIM cards in fleet management

In the fast-paced world of the transportation and logistics industry, fixed IP SIM cards play a crucial role in the efficient management of fleets. These SIM cards are specifically used in GPS tracking systems that are integrated into the vehicles and assets of the fleet. By harnessing the power of these SIM cards, fleet managers can monitor the location of their vehicles and assets in real-time. This capability allows for streamlined operations, improved route planning, and enhanced asset security, all of which are essential in today's fast-paced business environment.

Fixed IP SIM cards in healthcare

Medical device equipment that is used for remote patient monitoring and healthcare services benefit from the use of fixed IP SIM cards. These SIM cards provide a secure and stable connection that enables healthcare providers to remotely monitor patients' health and provide prompt healthcare services. With fixed IP SIM cards, medical devices can transmit data in real-time, allowing healthcare professionals to receive essential information and act swiftly in case of an emergency. This connection ensures that the healthcare service is reliable, efficient, and patient-centred while keeping the data safe and secure.

What are the benefits of fixed public and static private IP SIM cards?

Fixed public and static IP SIM cards are the preferred choice over a dynamic IP SIM card in a range of scenarios and applications due to a number of key benefits that they offer:

Fixed IP SIM cards offer increased security

Fixed IP SIM cards offer a higher level of security compared to dynamic IP SIM cards. This is because fixed IP SIM cards provide a constant and unchanging IP address, making it more difficult for cyber attackers to infiltrate the network and cause harm. In contrast, dynamic IP SIM cards assign a new IP address every time the device connects to the network, which may create vulnerabilities and increase the risk of cyberattacks and other harmful intrusions. Therefore, businesses and individuals who prioritise security may choose to opt for fixed IP SIM cards to ensure a safer and more secure network environment.

Fixed IP SIM cards are more stable and reliable

If you are using an application that requires a reliable and uninterrupted connection, like in the case of remote monitoring, fixed IP SIM cards can be a great option. Fixed IP SIM cards ensure that your device is assigned a particular and unchanging IP address, which means you always know how to locate and connect to it. This consistent connection ensures that you are not faced with any unexpected downtime or interruptions, which can be critical in situations that require continuous monitoring and real-time data transfer.

Fixed IP SIM cards offer the ability to access and control the device remotely

Fixed IP addresses play a vital role in enabling remote access and control of various devices, including but not limited to surveillance cameras, IoT devices, or remote sensors. With a fixed IP address, these devices can be easily accessed and controlled from afar, without the need for constantly changing connection settings. This consistency in address simplifies connectivity and management, allowing for seamless and hassle-free monitoring and control of these devices.

Looking for fixed IP SIM cards for your devices? Cellhire is here to support you.

Cellhire is a leading supplier of fixed IP SIM cards, specifically designed to connect your IoT devices. Our fixed IP SIM card allows you to easily connect and manage devices worldwide with agreements in place with over 430 network operators across 191 destinations.

Our fixed IP SIM card solution includes:

  • Access to 4 UK networks;
  • Un-steered solutions that connect to the strongest network;
  • VPN and IPSEC options;
  • Protection that permits permanent roaming;
  • Commercials that improve margin at the same rate across UK & EU;
  • A SIM management portal that provides access to live data
Last Modified: 03/01/2024
Written by: Dan McDonnell
Photo of an eSIM

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