Prefix 513-394 — Cincinnati, OH

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

Area code
513
Prefix (NXX)
394
Rate center
Cincinnati
State
Ohio
Time zone
Eastern
Code holder
T-MOBILE USA, INC.
OCN
6529
Pooled
Yes (thousands-block pooling)
Assigned
2011-08-04
LATA
922

The 513-394 prefix belongs to area code 513 and is anchored to the Cincinnati rate center (OH). In NANP terms, the prefix — or NXX — determines the rate center a number is billed against.

Cincinnati is part of the Cincinnati, OH-KY-IN Metropolitan Statistical Area. For routing purposes it sits in LATA 922. Numbers here keep Eastern time.

NANPA's central-office code records list T-MOBILE USA, INC. (OCN 6529) as the code holder, assigned August 4, 2011. Because 513-394 participates in thousands-block pooling, individual 1,000-number blocks may belong to other carriers than the code holder.

Caller ID showing 513-394 is not proof the call came from Cincinnati: 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

Prefixes adjacent to 513-394
PrefixRate centerCode holder
513-391 Cincinnati CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH
513-392 Middletown LEVEL 3 COMMUNICATIONS, LLC - OH
513-393 Middletown NEW CINGULAR WIRELESS PCS, LLC - IL
513-395 Cincinnati CINCINNATI BELL
513-396 Cincinnati CINCINNATI BELL
513-397 Cincinnati CINCINNATI BELL

FAQ

Where is 513-394 located?

The prefix is assigned to the Cincinnati rate center in OH, area code 513. It is part of the Cincinnati, OH-KY-IN Metropolitan Statistical Area.

Which company owns 513-394 numbers?

T-MOBILE USA, INC. 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 513-394 safe to answer?

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