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4ka Slovakia

Carrier Check & Mobile Network Specifications

Invalid IMEI.

4ka logoThe 4ka carrier from Slovakia is denoted by codes: 231 03. The followings IDs are called HNI (Home network identity). This code is created by the combination of two other Mobile Country Code (MCC) and Mobile Network Code (MNC). The first three numbers stand for the MCC and they are used in order to identify the region which the carried comes from (in the following example it’s Slovakia). The last numbers of the HNI code are equal with the MNC and this ID is given for the specific mobile network operator.

Besides 4ka Slovakia has assigned country code + 421. This number + 421 is equal with international calling code and it’s simply the telephone dialing prefixes used for calling 4ka numbers.
4ka uses 2 GSM bands, 0 UMTS bands, 3 and 0 CDMA bands.. You can read the specific frequency bands in the table below. All bands of the 4ka are display in MHz units.
Another important information in 4ka Slovakia architectures is the standard of used protocols. It also uses 4 protocols such as GSM, UMTS, LTE, CDMA.

The ISO standard code of 4ka is SK. You can see more info about this mobile network operator at https://www.4ka.sk/. How to check 4ka coverage? How to check if your phone will work in Slovakia? Those information will help you figure out if your device will work in the 4ka roaming. Use out database and check out if your device will be locked or unlocked in 4ka.

Use our CARRIER LOOKUP TOOL in order to make sure that your phone number is using 4ka network.

If you'd like to find out whether your device is going to work with 4ka (Slovakia), please check the details below:

All you need to do is compare bands specification from your mobile network with the bands used in your device. You can check the supported bands for your phone by using out phone database.


Name 4ka
Company SWAN Mobile, a.s.
Country Slovakia flag Slovakia
Country ISO SK
Country code + 421
Carrier website https://www.4ka.sk/
Carrier codes
  • 231 03
Mobile prefix 950
Size of NSN 9
Number format

+421 950 xxx xxx

Coverage map Check 4ka Coverage
Subscribers 603 000 (Q3 2022)
GSM bands
  • 900 (E-GSM)
  • 1800 (DCS)
GSM protocols
  • EDGE
  • GPRS
LTE bands
  • B3 (1800+)
  • B42 (TD 3500)
  • B43 (TD 3700)
LTE protocols
  • LTE
  • LTE-A

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