Prefix 305-427 — Miami, FL
The 305-427 prefix belongs to area code 305 and is anchored to the Miami rate center (FL). In NANP terms, the prefix — or NXX — determines the rate center a number is billed against.
Miami 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 February 8, 2022. 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 305-427 is not proof the call came from Miami: 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 |
|---|---|---|
| 305-424 | Miami | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL |
| 305-425 | Keys | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL |
| 305-426 | Miami | ABC PAGING CITY BEEPERS, INC. |
| 305-428 | Miami | TELEPORT COMMUNICATIONS AMERICA, LLC - FL |
| 305-429 | North Dade | OMNIPOINT MIAMI E LICENSE, LLC |
| 305-430 | North Dade | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL |
FAQ
Where is 305-427 located?
The prefix is assigned to the Miami 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 305-427 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 305-427 safe to answer?
The prefix itself says nothing about the caller. Legitimate Miami businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.