Alias
NTN 1.6 GHz, MSS L-Band

Also known as "NTN 1.6 GHz", this band utilises Mobile Satellite Service (MSS) L-Band spectrum and is specifically designated for Non-Terrestrial Networks (NTNs). The band uses reversed-duplexing with uplink frequencies from 1626.5 to 1660.5 MHz and downlink frequencies from 1525 to 1559 MHz. n255 is used by satellite services such as LEO constellations to provide 5G connectivity to remote and isolated areas. The n255 band was standardised in the 3GPP Release 17.0 in January 2021.

Technical Characteristics

Technology
5G NR
Duplexing
FDD
Duplex Spacing
-101.5 MHz
Channel Widths
5, 10, 15, 20
Uplink Start
1626.5 MHz
Uplink Stop
1660.5 MHz
UL ARFCN Low
325300
UL ARFCN High
332100
Downlink Start
1525 MHz
Downlink Stop
1559 MHz
DL ARFCN Low
305000
DL ARFCN High
311800