Multi-IMSI IoT SIM Card.

Multiple Carriers. Total Control.

Connect your IoT devices across 600+ networks in 190+ countries with a single multi-IMSI SIM. Velocity IoT’s architecture combines local core infrastructure with automatic network switching to help maximize performance, reduce latency, and keep your devices online.

One SIM. Every Challenge Handled.

Your devices drop offline and there’s no failover. Your data loops across the globe when it doesn’t have to. You’re juggling contracts, dashboards, and APIs just to keep things running. And you’re paying for SIMs sitting idle. The Velocity IoT Multi-IMSI SIM is built to solve all of it, in a single SIM.

Automatic Network Failover

Global Reach, Local Compliance

Low Latency, High Performance

eSIM (SGP-32) + Multi-IMSI Hybrid

Satellite Connectivity + Cellular Hybrid

Only Pay for Active SIMs

How Multi-IMSI SIM Architecture Keeps Your IoT Devices Online

Coverage alone isn’t enough. Velocity IoT’s connectivity is supported by infrastructure designed for local performance, compliance and uptime.

Dynamic Network Access

Devices automatically connect to the strongest available network. Think of RANs as doors and SIMs as keys: each SIM carries multiple IMSIs, any of which can unlock access across several networks. The cellular module scans available RANs and selects the optimal connection based on signal strength. No single-carrier dependency, no static roaming.

Local Packet Gateways and Core Network

Local IMSIs and distributed packet gateways route traffic close to where devices operate, improving latency, reliability, and compliance. With 40+ global points of presence, connectivity behaves consistently across regions, avoiding the limitations of traditional roaming.

Over-the-Air (OTA) SIM Management

Push new carrier profiles and manage your entire fleet over-the-air. No physical SIM swap, no field technicians, no downtime window required.

Network Insights and Diagnostics

Network insights and advanced diagnostics across every SIM in your deployment, all in one centralized platform. Spot issues early, resolve them fast, and keep your operations running without interruption.

Simplify Your IoT Connectivity. Scale With Confidence.

Streamlined Operations

One SIM, one contract, and one connectivity management platform to manage global deployments, reducing complexity across vendors, billing, and operations.

eSIM + Multi-IMSI Hybrid

Combine eUICC flexibility with IMSI diversity to future-proof your connectivity with ultimate fallback options.

API Integration

Integrate SIM management, network events, and billing into your existing systems with REST APIs.

All SIM Form Factors

Plastic SIM, eSIM, iSIM, and SoftSIM are all supported. Deploy the form factor your hardware requires.

Expert Deployment Support

From coverage planning and device testing to firmware guidance, our team is embedded in your deployment, not just a support ticket queue.

Multi-Layered Security

End-to-end security across devices, data, and connectivity infrastructure, built into the SIM and network, not added later.

Real Deployment. Measurable Results.

Rugged Telemetry deployed Velocity IoT’s multi-IMSI SIM for primary cellular connectivity in Watertown’s wastewater system, with access to all major U.S. carriers.

The result: real-time monitoring, reduced downtime, and 99% uptime with resilient connectivity.

Multi-IMSI & Multi-Network IoT SIM: FAQ

What is the difference between Multi-IMSI & eSIM (eUICC)?

Multi-IMSI SIMs contain multiple MNO profiles on a single SIM and can switch between them automatically. Velocity IoT’s multi-IMSI SIMs also support OTA updates, allowing IMSI profiles and SIM behavior to be updated after deployment.

eUICC is a GSMA-standard SIM architecture that enables remote provisioning and management of operator profiles over-the-air. Velocity IoT supports both SGP.22 and SGP.32 standards.

What is the difference between roaming SIMs and Multi-IMSI SIMs?

Roaming SIMs rely on a single home network and connect to foreign carriers, which can lead to higher latency, limited failover, and compliance challenges at scale.

Velocity IoT’s multi-IMSI SIMs provide access to local IMSIs and networks in each region, supported by local core infrastructure and breakout. This improves performance, increases reliability through dynamic network selection, and ensures compliance.

Do your multi-IMSI SIMs support multiple carriers in the U.S.?

Velocity IoT SIMs provide access to all major US (AT&T, T-Mobile & Verizon) carriers through a single SIM. This enables built-in redundancy and improves coverage and reliability across deployments.

Will your multi-IMSI SIM cards work with our existing modern hardware?

Velocity IoT SIMs are device-agnostic across 2G-5G, LTE-M, and NB-IoT. Available in plastic SIM (2FF/3FF/4FF), eSIM (MFF2), iSIM, and SoftSIM.

How does billing work for fleets with inactive devices?

You only pay for SIMs with active data usage. Devices with no network activity generate no charges, with no suspension fees or minimum usage requirements.

How quickly can I get started?

You can get started right away with no minimum order and no contract through our Flex platform. SIMs are available via Digi-Key for fast deployment. For more advanced deployments requiring custom SIM profiles or configuration, our team can help design the right approach. Trial data is available for evaluation and testing.

Ready to get started with Multi-IMSI Connectivity?

Talk to our team to design the right connectivity strategy for your deployment. Trial data available for testing and validation.

Not ready to talk to sales? Order directly through Digi-Key. Get started with no minimum order and no contract.