Area Code 601 – Mobile Network
The phone area code for Mobile Network is 601 (international format +420601). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 601
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Overview of Czech Mobile Prefix 601
The prefix +420 601 is a non-geographic mobile network code assigned within the Czech Republic's national numbering plan, as governed by the Czech Telecommunication Office (ČTÚ) under ITU-T E.164 guidelines. Unlike geographic area codes, which correspond to specific regions, the 601 prefix is location-independent and exclusively used for mobile services. This means that calls to numbers beginning with +420 601 are routed to a subscriber's mobile device, regardless of their physical location within the country or abroad.
Technical Specifications and Numbering
Czech mobile numbers consist of nine digits in total, including the leading '6' that denotes a mobile service. The prefix 601 is the first three digits of the subscriber number, followed by a six-digit subscriber line. The full national significant number (NSN) is nine digits, and the international format is +420 601 XXX XXX. When dialing from within the Czech Republic, callers must use the national dialing format: 601 XXX XXX (without the leading '0' that was historically used for trunk prefix). From abroad, callers should dial +420 601 XXX XXX.
The 601 prefix is allocated to a specific mobile network operator (MNO) or mobile virtual network operator (MVNO) in the Czech Republic. As of the latest ČTÚ data, 601 is assigned to T-Mobile Czech Republic, a major MNO. However, due to mobile number portability (MNP), a subscriber may have retained their 601 number even after switching to another operator. Therefore, the prefix alone does not guarantee the current network; it only indicates the original allocation.
Dialing and Routing Considerations
For international callers, dialing +420 601 XXX XXX will connect to the subscriber's mobile phone. SMS messages should also be addressed to +420 601 XXX XXX. When roaming, the subscriber's device will register on a foreign network, and calls will be routed accordingly. It is important to note that calls to Czech mobile numbers are typically charged at higher rates than landline calls, depending on the caller's tariff. Within the Czech Republic, calls from landlines to mobile numbers are not included in flat-rate landline packages and incur per-minute charges.
Regulatory and Practical Notes
The Czech numbering plan is closed, meaning that all digits must be dialed even for local calls. There are no area codes for mobile numbers, and the prefix 601 is not tied to any geographic region. This allows users to keep their numbers when moving within the country. For businesses, using a 601 number can be a strategic choice, as it signals mobility and nationwide reach. However, it is essential to verify the current operator and any porting status through official databases if such information is critical for routing or billing purposes.