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Preface

You plan to penetrate the Air Defense Identification Zone or ADIZ under VFR. In other words you’ll be on a Defense VFR or DVFR clearance. What code range might you be assigned, and who exclusively assigns them?

1.

1. 4401-4443 and 4466-4477, assigned by ATC

2.

2. 4434-4437, assigned by FSS

3.

3. 1207-1272, assigned by FSS

4.

4. 0100-0400, assigned by Service Area Operations

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