W4SFO
Call sign W4SFO was granted to MARTIN, WILLIAM C by the Federal Communications Commission (FCC) on May 07, 2007 . The FCC license ID of this call sign is 800422. More details about call sign W4SFO can be found in the table below.
| FCC License Id | 800422 |
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| Radio Service Code | HA |
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| Description of the Radio service | Amateur |
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| Date When the FCC Granted the Authorization | 2007-05-07 |
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| Date When the Authorization Has or Will Expire | 2017-06-06 |
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| Date on Which the Authorization Was Cancelled | 2019-06-07 |
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| Date This Record Was Last Updated. | 2019-06-07 |
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| Service Category | Personal Use |
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| High-level Service Category Description | Personal Use |
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| Licensing Source System | ULS |
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| FCC Registration Number (FRN) | 0016450306 |
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| License Status Status | Expired |
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| High-level License Status | Expired |
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| Description of Entity Type | Individual |
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| High-level Entity Type Description | Individual |
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