What network type frequencies do 3 sim cards us

[novicfps]

I was wondering what network type frequencies three sim cards use I need to know it for my router

[Three_Niall]

Hey @novicfps , 🙂 I have gone back to your previous thread about your speeds and I will be happy to support you there, in relation to the frequencies query I would recommend that once you place the SIM card in your device to allow the device to automatically connect to the network and then you can switch between 3g/4G or 5G depending on your plan and device. 

[novicfps]

@Three_Niall this is what my  router company told me

As for the SIM card, the Archer MR400 support these network type frequencies:

4G: FDD-LTE B1/B3/B7/B8/B20 (2100/1800/2600/900/800 MHz)

TDD-LTE B38/B40/B41 (2600/2300/2500 MHz)

3G: DC-HSPA+/HSPA+/HSPA/UMTS B1/B8 (2100/900 MHz)