Convert between EARFCN and DL/UL frequency for all major 4G LTE bands.
EARFCN → Frequency
EARFCN not found in any known LTE band. Check the value and try again.
Band
Duplex mode
DL Frequency
UL Frequency
Band + Channel → EARFCN
EARFCN (DL)
EARFCN (UL)
DL Frequency
UL Frequency
Common LTE Bands Reference
Band
DL (MHz)
UL (MHz)
Duplex
Common Use
B1
2110–2170
1920–1980
FDD
2.1 GHz
B3
1805–1880
1710–1785
FDD
1800 MHz
B5
869–894
824–849
FDD
850 MHz
B7
2620–2690
2500–2570
FDD
2600 MHz
B8
925–960
880–915
FDD
900 MHz
B20
791–821
832–862
FDD
800 MHz EU
B28
758–803
703–748
FDD
700 MHz APac
B38
2570–2620
2570–2620
TDD
2600 TDD
B40
2300–2400
2300–2400
TDD
2300 TDD
B41
2496–2690
2496–2690
TDD
2500 TDD
Frequently Asked Questions
What is an EARFCN?
E-UTRA Absolute Radio Frequency Channel Number (EARFCN) is a number that uniquely identifies an LTE carrier frequency. Each EARFCN maps to a specific center frequency in the DL or UL direction. EARFCNs for DL range from 0 to 65535 depending on the band.
Why are there separate DL and UL EARFCNs in FDD?
FDD (Frequency Division Duplex) uses separate frequencies for downlink and uplink, so each has its own channel number. The UL EARFCN is derived from the DL EARFCN using a fixed offset that depends on the band. TDD bands use the same frequency for both, so they have only one EARFCN.
How do I find my LTE EARFCN?
On Android phones, you can find the EARFCN in engineering mode (dial *#*#4636#*#* and check the "Phone Information" or LTE stats section). On field test devices, EARFCN is typically shown alongside RSRP and RSRQ in the serving cell information.