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Ovum research on 2G/3G migration strategies reveals that few operators plan to completely switch off legacy mobile networks in the next couple of years. This research note identifies the commercial considerations operators must take into account.


  • Legacy networks are still considered vital for voice fallback (either from 3G or LTE) and to support sometimes large M2M customer bases.

Features and Benefits

  • Identifies why first movers on network closure are going early due to unique market characteristics
  • Assesses key factors that operators need to consider when weighing up the ideal time to close a mobile network

Key questions answered

  • What are the challenges to network closure?
  • What are the benefits of network closure?

Table of contents

Ovum view

  • Summary
  • Commercial factors weigh heavily in the question of when to shut the legacy network
  • There’s no easy answer as to when to close a network
  • Could 3G networks close before GSM ones?


  • Author

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