IoT Configuration Parameter

Learn more about basic settings for NB-IoT networks of Telekom/T-Mobile and the IoT Creators

NB-IoT Network Settings

The following table provides an overview of the basic network parameters that you need to configure the cellular module of your device.

APNStandard APN: scs.telekom.tma.iot
(currently all SIMs ordered through
IMSI starting with 23 and ICCID starting with 894

2nd possible APN:
(majority of sims dispatched until Sept 2022)
IMSI starting with 90 and ICCID starting with 898

NO-IP (NIDD) APN (only available for sim cards with ICCID starting with 898):
Frequency RangeGuard Band
PLMN IDT-Mobile Austria: 23203
T-Mobile Croatia: 21901
T-Mobile Czech Republic: 23001
Telekom Germany: 26201
Cosmote Greece: 20201
Magyar Telekom Hungary: 21630
T-Mobile Poland: 26002
Telekom Slovakia: 23102
T-Mobile Netherlands: 20416

For other countries see Roaming Network Info
NB-IoT frequency bands
(if multiple bands are provided alsways use the first one as first)
Austria: B8 (900MHz)
Croatia: B20 (800MHz)
Czech Republic: B20 (800MHz), B8 (900MHz)
Germany: B8 (900MHz)
Greece: B20 (800MHz)
Hungary: B20 (800MHz), B8 (900MHz))
Poland: B20 (800MHz)
Slovakia: B20 (800MHz), B8 (900MH)
Netherlands: B8 (900MHz)
USA: B12 (700MHz), B2 (1900MHz), B4 (1700MHz)

For other countries see Roaming Network Info
Frequency RangeGuard Band
RAT TypeGuard Band

IoT Creators Settings

The following table provides you an overview of parameters which you need to configure your software on the device or your applications to enable end-to-end communication.

Neul Connector
(CoAP flavor of OceanConnect)
port: 5683
UDP Device Connectorip:
port: 15683 (not DTLS!)
CoAP Connector without DTLSip:
port: 6683 (not DTLS!)
CoAP Connector with DTLSurl:
port: 6684
LWM2M Server with DTLSip:
port: 5684
LWM2M Server without DTLSip:
port: 5683
LWM2M Server via public internet with DTLSurl:
port: 5684
MQTT Server without TLSip :
port: 1883
MQTT Server via public internet with TLSurl:
port: 8883
NTP Time Serviceip:,,
port: 123
PING serviceip:
IoT Creators Application API URL
(supports TLS v1.1 and TLS v1.2)
IoT Creators WebHook source IP
(from those IPs IoT Creators forwards device messages to your application callback URL),,