Selection diagram linking country, plan and device checks for LTE-M and NB-IoT roaming, with Germany and 1NCE as the example.
Country, plan and device checks for the Germany / 1NCE example.

LTE-M and NB-IoT roaming in Germany: a 1NCE checklist

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1NCE lists both LTE-M and NB-IoT for Germany in its October 2026 coverage list. That gives an engineer a useful place to start. The next job is to match a specific SIM offer, visited network and device to the installation.

This example follows the standard 1NCE IoT Lifetime Flat and its 1NCE Connect service. Use it to build a deployment record for Germany. For a wider technology comparison, start with our NB-IoT, LTE-M and LoRaWAN guide.

Start with the right Germany row

Download the dated 1NCE coverage list from the coverage page. In the Global IoT section, Germany has a mark under both LTE-M and NB-IoT on page 3. The same PDF contains a separate High Data section. Keep the service name beside the country result so the two offers stay distinct.

Radio technologyPublished Germany findingNext item to obtain
LTE-MListed in the October 2026 Global IoT table.Allowed visited networks and PLMNs for the selected 1NCE order.
NB-IoTListed in the same table. The 1NCE support example names Telekom Deutschland, 26201, band 8.Current network access and feature scope for that SIM product.

Save the list date, service name and page with the project record. Check the list again before ordering a production batch or extending a deployment. The network migration guide covers the longer-term hardware review.

Name the visited network

A country name is only the first part of a connection record. Add the mobile network operator and its Public Land Mobile Network identifier, or PLMN. 1NCE’s NB-IoT configuration example identifies Telekom Deutschland as 26201 and uses band 8. It is a starting reference for a network enquiry, rather than an instruction to copy that example’s modem commands into every device.

The German regulator’s allocation list, dated 3 August 2026, identifies Telekom Deutschland with 262-01, Vodafone with 262-02, and Telefónica Germany with 262-03. Telekom’s current roaming network reference lists all three under both LTE-M and NB-IoT in Germany. That reference explicitly covers Telekom’s Global SIM (90140), and says access is contract-specific.

Ask 1NCE for the allowed German PLMNs on your chosen offer, with a separate answer for each radio technology. Keep the dated answer with the order. The public 1NCE country list does not provide this operator-by-operator breakdown.

Match the offer to the contracting entity

The EU IoT Lifetime Flat page advertises ten years of connectivity. The August 2026 Service Description, sections 2.1.1 and 2.1.2, specifies 500 MB and 250 SMS for customers in Europe. Record these as the plan allowances; check the chosen radio technology’s actual messaging support separately.

For the contract example here, use a business purchase from 1NCE GmbH. Part A, section 1.1 names that entity, and section 1.3 limits its offer to businesses. An installation in Germany alone does not select the supplier’s legal entity. Read the entity on the quotation or order confirmation and use its matching terms.

Section 1.4 of the GmbH General Terms gives the document order: an Individual Agreement takes precedence, followed by the Order, Service Description, service-specific Part B, and general Part A. Keep those documents together when comparing the advertised offer with what you are buying.

Put the installation period in the request

For a sensor intended to remain in Germany for five years, state that period in the enquiry. Ask for the permitted use of the selected SIM product and any local-IMSI requirement for that installation.

The January 2026 1NCE Connect terms, section 1.2, describes permanent-roaming restrictions that can apply in certain countries when non-local IMSIs remain after a designated period. Its reference to three months is an example, not a Germany-specific deadline. Germany has no restriction asterisk in the October coverage table; the order still needs to match the proposed use.

The Acceptable Use Policy, sections 5.1-5.3, ties geographical use to the current coverage list, the correct product variant and any separately agreed deployment area. Ask the SIM partner to confirm the planned country, radio technologies and installation period in writing.

Keep the service lifetime separate from that roaming question. Connect section 1.5 defines when the agreed Lifetime begins, including a three-month grace period after provision. Section 1.6 also includes an 18-month inactivity condition for early ending. Check those dates against a deployment schedule with long periods in storage or infrequent reporting.

Build a pilot around the application

Once the network and order are clear, choose the exact module ordering code, firmware and antenna for the required bands. Use the matching manufacturer documents from the datasheet centre to set the APN and radio modes. A command from a different modem is a poor substitute for its own manual.

Use this pilot record for each radio technology:

  1. Identify the setup. Record the module and firmware, SIM product, APN, antenna, location and test date. Keep full SIM identifiers in the private engineering record.
  2. Check the whole transaction. Record the serving PLMN and RAT, registration result, data session and application-server acknowledgment. Test the expected upload size and reporting interval.
  3. Check sleep and downlink together. Save requested and network-reported PSM/eDRX settings, then measure current and downlink response on the device. Telekom’s network information explains the preferred timer fields. Our PSM and eDRX guide explains the reachability tradeoff.
  4. Exercise recovery. Check a reboot and a controlled loss of service. For moving equipment, include the intended route. Define acceptable interruption and application recovery before testing, then record what happens.

Hand over the dated coverage finding, the order-specific network answer and the device transaction record together.

For a hardware review, send Muziot the Germany deployment period, SIM offer, confirmed PLMNs, module BOM and reporting requirements. Request a module and BOM review.

Sources and check date

Public documents checked on 10 November 2026. PDF page numbers refer to document pages.