UK Networks MCC MNC and LTE Band Numbers

UK Network Band Numbers

Sometimes a network has a persistent long term problem. At the moment (March-2025) 3 UK LTE is very unreliable for IoT. We correct this problem by simply blocking the band that the network uses on UK devices. At some point in the future we will return it to service by adding that band again. There are plenty of networks in the UK so it shouldn't cause a reliability issue (especially when you block 3 as they have the least good coverage).

The command to do this is:

QCFG: "band",0xf,0x80800d5

at+qcfg="band",<2G>,<4G>

UK 4G bands: 80800d5

To remove 3UK on band 3 (0x04) we remove 4 from above:

at+QCFG="band",F,80800D1

The command to discover the band is 

at+qeng="servingcell"

This returns the following:

QENG: "servingcell","NOCONN","LTE","FDD",234,20,3F900,159,1392,3,4,4,E7F,-80,-13,-49,88,45

This is 3UK, MCC: 234, MNC:30 using Band 3