Frequency Bands / ITU RR table: 1 610-1 660 MHz

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ITU RR table: 1 610-1 660 MHz

1.61 – 1.66 GHz WRC-27 AI

The L-band MSS uplink and radionavigation satellite band, used by LEO satellite constellations including Iridium (1616–1626.5 MHz) and Globalstar (1610–1618.5 MHz). It also hosts radio astronomy allocations protecting the OH spectral line at 1612 MHz — an internationally recognised quiet zone for passive sensing.

On the WRC-27 agenda

This band — or part of it — is under study for the 2027 World Radiocommunication Conference. The agenda items below address it:

AI 1.11 to consider the technical and operational issues, and regulatory pr... WP 4C AI 1.12 to consider, based on the results of studies, possible new allocati... WP 4C AI 1.13 to consider studies on possible new allocations to the mobile-satel... WP 4C
Overview Timeline Footnotes Countries Learn

Band Highlights

Top 3 recent
  • WRC-23

    1.614423 – 1.618725 GHz

    WRC-23: Footnote 5.372A created (condition)

  • WRC-23

    1.61 – 1.6455 GHz

    WRC-23: Footnote 5.351A revised (condition)

  • WRC-23

    1.61 – 1.66 GHz

    WRC-23: Footnote 5.359 revised (additional allocation)

Band Statistics

26 Active footnotes

Recent WRC Activity

WRC-31 WRC-27 WRC-23
Footnotes created — — 1
Footnotes revised — — 6
Footnotes suppressed — — —
Service promotions — — —
Band restructuring — — —

Key WRC Sessions

No WRC session highlights available for this band.