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Opportunities and limitations - Czech Republic

Overview
Despite being a small market with 10 million inhabitants, the Czech Republic has more than 14 million subscribers, which is one of the highest penetration rates in the world. Operators, especially T-Mobile and Vodafone, heavily filter, actively shut down international routes or impose high cooperation fees.
Sender
From September 1, 2021, T-Mobile CZ will reject alphanumeric sender IDs that have not been registered with them. Vodafone and O2 will overwrite with sender ID "Info". Numeric sender IDs are not allowed unless they are SureSMS leased Czech LVNs that support SMS capabilities. Contact [email protected] to confirm availability and for help pre-registering your Sender ID for T-Mobile.
Content
There are no additional content restrictions beyond those in our Acceptable Use Policy.
Incoming numbers
Nothing to note
Delivery receipts
Other features and restrictions