Prefix 313-547 — Detroit Zone 05, MI

NANPA CO code assignment, current as of July 28, 2026.

Area code
313
Prefix (NXX)
547
Rate center
Detroit Zone 05
State
Michigan
Time zone
Eastern
Code holder
HD CARRIER LLC
OCN
321J
Pooled
Yes (thousands-block pooling)
Assigned
2021-06-02
LATA
340

A phone number starting 313-547 was issued in the Detroit Zone 05 rate center of MI — part of area code 313.

NANPA's central-office code records list HD CARRIER LLC (OCN 321J) as the code holder, assigned June 2, 2021. Because 313-547 participates in thousands-block pooling, individual 1,000-number blocks may belong to other carriers than the code holder.

A scammer can display 313-547 without ever touching MI. When in doubt, end the call and reach the company or agency through its official website; unwanted robocalls belong in the FTC's fraud report queue.

Detroit Zone 05 is part of the Detroit-Warren-Dearborn, MI Metropolitan Statistical Area. For routing purposes it sits in LATA 340. Numbers here keep Eastern time.

Neighboring prefixes

Prefixes adjacent to 313-547
PrefixRate centerCode holder
313-544 Detroit Zone 04 METROPCS, INC.
313-545 Detroit Zone 01 MICHIGAN BELL TEL CO
313-546 Detroit Zone 01 TELEPORT COMMUNICATIONS AMERICA, LLC - MI
313-548 Detroit Zone 02 BANDWIDTH.COM CLEC, LLC - MI
313-549 Detroit Zone 05 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI
313-550 Detroit Zone 05 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI

FAQ

Where is 313-547 located?

The prefix is assigned to the Detroit Zone 05 rate center in MI, area code 313. It is part of the Detroit-Warren-Dearborn, MI Metropolitan Statistical Area.

Which company owns 313-547 numbers?

HD CARRIER 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 313-547 safe to answer?

The prefix itself says nothing about the caller. Legitimate Detroit Zone 05 businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.