Prefix 412-328 — Pittsburgh Zone 1, PA

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

Area code
412
Prefix (NXX)
328
Rate center
Pittsburgh Zone 1
State
Pennsylvania
Time zone
Eastern
Code holder
ONVOY, LLC - PA
OCN
547E
Pooled
Yes (thousands-block pooling)
Assigned
2010-02-26
LATA
234

412-328 identifies a block of numbers in Pittsburgh Zone 1, PA, within the 412 area code. Every US prefix is tied to exactly one rate center; this one is Pittsburgh Zone 1.

The rate center lies in the Pittsburgh, PA Metropolitan Statistical Area. The serving LATA is 234. Local time follows the Eastern zone.

Treat the on-screen number as a hint, not evidence — 412-328 can be spoofed like any US prefix. If a call feels off, verify through an official callback number and file a complaint with the FCC or FTC.

NANPA's central-office code records list ONVOY, LLC - PA (OCN 547E) as the code holder, assigned February 26, 2010. Because 412-328 participates in thousands-block pooling, individual 1,000-number blocks may belong to other carriers than the code holder.

Neighboring prefixes

Prefixes adjacent to 412-328
PrefixRate centerCode holder
412-325 Pittsburgh Zone 1 FIDIUM ENTERPRISE SERVICES, LLC
412-326 Pittsburgh Zone 5 PAETEC ITEL, LLC
412-327 Pittsburgh Zone 1 NEW CINGULAR WIRELESS PCS, LLC - IL
412-329 Pittsburgh Suburban Zone 15 PAETEC ITEL, LLC
412-330 Pittsburgh Zone 1 VERIZON PENNSYLVANIA, INC.
412-331 Pittsburgh Zone 7 VERIZON PENNSYLVANIA, INC.

FAQ

Where is 412-328 located?

The prefix is assigned to the Pittsburgh Zone 1 rate center in PA, area code 412. It is part of the Pittsburgh, PA Metropolitan Statistical Area.

Which company owns 412-328 numbers?

ONVOY, LLC - PA 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 412-328 safe to answer?

The prefix itself says nothing about the caller. Legitimate Pittsburgh Zone 1 businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.