Public Land Mobile Network
So you have good signal, but your dialer isn’t working? Do you have the right PLMN available?
Check out https://mcc-mnc.net/ to find out what the PLMN codes line up with.
The first 5-6 digits of your IMSI (International Mobile Subscriber Identity) are your PLMN.
MyRouter#cellular 0/1/0 lte plm search
Searching for available PLMNs…Please wait…
This may take up to 5 minutes…………………
PLMN search done. Please use “show cellular x/x/x network” to see available PLMNS
MyRouter#show cell 0/1/0 network
Current System Time = Tue Feb 18 14:14:50 2025
Current Service Status = Normal
Current Service = Packet switched
Current Roaming Status = Home
Network Selection Mode = Automatic
Network = VZW
Mobile Country Code (MCC) = 311
Mobile Network Code (MNC) = 480
Packet switch domain(PS) state = Attached
System Mode = LTE
LTE Carrier Aggregation state = Deconfigured
Registration state(EMM) = Registered
EMM Sub State = Normal Service
Tracking Area Code (TAC) = 0
Cell ID = 39195010
Available PLMNs at = 14:13:25 UTC Tue Feb 18 2025
Idx MCC MNC RAT Desc
1 311 480 lte Verizon Wi
2 310 410 lte AT&T
3 313 100 lte 313 100
4 310 260 lte T-Mobile
MyRouter#cellular 0/1/0 lte plm select manual 311 480 lte #Verizon
Negotiated network MTU = 1428
F340.09.25-ISR4331-517C#show cell 0/1/0 radio
Radio power mode = Online
LTE Rx Channel Number(PCC) = 2600
LTE Tx Channel Number(PCC) = 20600
LTE Band = 5
LTE Bandwidth = 10 MHz
Current RSSI = -82 dBm
Current RSRP = -117 dBm
Current RSRQ = -20 dB
Current SNR = -3.4 dB
Physical Cell Id = 237
Number of nearby cells = 2
Idx PCI (Physical Cell Id)
1 237
2 414
MyRouter#cellular 0/1/0 lte plm select manual 313 100 lte #FirstNet (It takes a little while for the radio to update)
show cell 0/1/0 radio
Radio power mode = Online
LTE Rx Channel Number(PCC) = 950
LTE Tx Channel Number(PCC) = 18950
LTE Band = 2
LTE Bandwidth = 20 MHz
Current RSSI = -75 dBm
Current RSRP = -100 dBm
Current RSRQ = -5 dB
Current SNR = 8.4 dB
Physical Cell Id = 371
Number of nearby cells = 2
Idx PCI (Physical Cell Id)
1 371
2 81
MyRouter#cellular 0/1/0 lte plm select force 950 109 2 lte #Not a real PLMN, but we still have signal!
MyRouter#show cell 0/1/0 radio
Radio power mode = Online
LTE Rx Channel Number(PCC) = 950
LTE Tx Channel Number(PCC) = 18950
LTE Band = 2
LTE Bandwidth = 20 MHz
Current RSSI = -73 dBm
Current RSRP = -98 dBm
Current RSRQ = -9 dB
Current SNR = 9.6 dB
Physical Cell Id = 371
Number of nearby cells = 2
Idx PCI (Physical Cell Id)
1 371
2 449