47 CFR § 25.124 - Unified space station and earth station authorization.

---
identifier: "/us/cfr/t47/s25.124"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "47 CFR § 25.124 - Unified space station and earth station authorization."
title_number: 47
title_name: "Telecommunication"
section_number: "25.124"
section_name: "Unified space station and earth station authorization."
chapter_name: "FEDERAL COMMUNICATIONS COMMISSION"
subchapter_number: "B"
subchapter_name: "COMMON CARRIER SERVICES"
part_number: "25"
part_name: "SATELLITE COMMUNICATIONS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "47 U.S.C. 154, 301, 302, 303, 307, 309, 310, 319, 332, 605, and 721, unless otherwise noted."
cfr_part: "25"
---


# 25.124 Unified space station and earth station authorization.

(a) A single authorization may be issued for the operations of a GSO space station or NGSO space station(s) and the blanket-licensed earth stations that will operate within that satellite system, excluding GSO FSS and NGSO FSS satellite systems operating in bands below 10 GHz and bands subject to § 25.136. The available frequency bands are:

(1) Non-Voice, Non-Geostationary MSS: 137-138 MHz, 148-150.05 MHz, 399.9-400.05 MHz, and 400.15-401 MHz;

(2) 1.5/1.6 GHz MSS: 1525-1559 MHz and 1626.5-1660.5 MHz;

(3) 1.6/2.4 GHz MSS: 1610-1626.5 MHz and 2483.5-2500 MHz;

(4) 2 GHz MSS: 2000-2020 MHz and 2180-2200 MHz;

(5) GSO FSS: 10.7-12.2 GHz, 14-14.5 GHz, 18.3-18.8 GHz, 19.7-20.2 GHz, 28.35-28.6 GHz, 29.25-30 GHz, 40-42 GHz, and 48.2-50.2 GHz;

(6) NGSO FSS: 10.7-12.7 GHz, 14.4-14.5 GHz, 17.3-17.8 GHz, 17.8-18.6 GHz, 18.8-19.4 GHz, 19.6-20.2 GHz, 28.35-29.1 GHz, 29.5-30.0 GHz, 40-42 GHz, and 48.2-50.2 GHz;

(7) GSO and NGSO MSS: 19.7-20.2 GHz and 29.5-30 GHz.

(b) An application for a satellite system license described in paragraph (a) must contain:

(1) The information required by § 25.114 or, for a non-U.S.-licensed space station, § 25.137;

(2) A certification that earth station operations under the satellite system license will comply with part 1, subpart I and part 17 of this chapter; and

(3) Any additional information required under this part, including under § 25.115, for operation of the blanket-licensed earth stations that is not duplicative or unnecessary due to the information provided for the space station operation.

[86 FR 11887, Mar. 1, 2021, as amended by 89 FR 96601, Dec. 5, 2024]