Prefix 305-504 — Keys, FL
The 305-504 prefix belongs to area code 305 and is anchored to the Keys rate center (FL). In NANP terms, the prefix — or NXX — determines the rate center a number is billed against.
Keys is part of the Miami-Fort Lauderdale-Pompano-West Palm Beach, FL Metropolitan Statistical Area. For routing purposes it sits in LATA 460. Numbers here keep Eastern time.
The assigned code holder is OMNIPOINT MIAMI E LICENSE, LLC, operating company number 6889, assigned November 21, 2012. This is a pooled prefix — expect numbers within it to be split across more than one carrier in 1,000-number blocks.
Caller ID showing 305-504 is not proof the call came from Keys: spoofing and porting both detach numbers from their origin. To verify a caller, hang up and dial the organization's published number, and report suspicious calls to the FTC.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 305-501 | Keys | LEVEL 3 COMMUNICATIONS, LLC - FL |
| 305-502 | North Dade | OMNIPOINT MIAMI E LICENSE, LLC |
| 305-503 | Miami | PAETEC ITEL, LLC |
| 305-505 | Miami | NEW CINGULAR WIRELESS PCS, LLC - GA |
| 305-506 | Perrine | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL |
| 305-507 | Miami | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL |
FAQ
Where is 305-504 located?
The prefix is assigned to the Keys rate center in FL, area code 305. It is part of the Miami-Fort Lauderdale-Pompano-West Palm Beach, FL Metropolitan Statistical Area.
Which company owns 305-504 numbers?
OMNIPOINT MIAMI E LICENSE, LLC holds the code, but the prefix is pooled — individual thousands-blocks can be assigned to other carriers, and numbers may be ported to any provider.
Is a call from 305-504 safe to answer?
The prefix itself says nothing about the caller. Legitimate Keys businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.