WBK4181
Call sign WBK4181 was granted to CHEN, JOHN S by the Federal Communications Commission (FCC) on May 01, 2007 . The FCC license ID of this call sign is 1542450. More details about call sign WBK4181 can be found in the table below.
| FCC License Id | 1542450 |
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| Radio Service Code | SA |
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| Description of the Radio service | Ship Recreational or Voluntarily Equipped |
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| Date When the FCC Granted the Authorization | 2007-05-01 |
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| Date When the Authorization Has or Will Expire | 2017-07-29 |
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| Date on Which the Authorization Was Cancelled | 2017-09-30 |
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| Date This Record Was Last Updated. | 2017-09-30 |
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| Service Category | Safety of Life |
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| High-level Service Category Description | Safety of Life |
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| Licensing Source System | ULS |
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| FCC Registration Number (FRN) | 0014046155 |
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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 | Partnership |
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| High-level Entity Type Description | Business |
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