Prefix 919-923 — Chapel Hill, NC

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

Area code
919
Prefix (NXX)
923
Rate center
Chapel Hill
State
North Carolina
Time zone
Eastern
Code holder
SUNCOM DBA T-MOBILE USA
OCN
8645
Pooled
Yes (thousands-block pooling)
Assigned
2002-09-27
LATA
426

The 919-923 prefix belongs to area code 919 and is anchored to the Chapel Hill rate center (NC). In NANP terms, the prefix — or NXX — determines the rate center a number is billed against.

Chapel Hill is part of the Durham-Chapel Hill, NC Metropolitan Statistical Area. For routing purposes it sits in LATA 426. Numbers here keep Eastern time.

Code-holder of record: SUNCOM DBA T-MOBILE USA (OCN 8645), assigned September 27, 2002. The prefix is pooled: its ten thousands-blocks can be shared among several carriers, so different 919-923 numbers may be served by different companies.

Caller ID showing 919-923 is not proof the call came from Chapel Hill: 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 919-923
PrefixRate centerCode holder
919-920 Goldsboro CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC
919-921 Goldsboro SUNCOM DBA T-MOBILE USA
919-922 Goldsboro CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC
919-924 Apex SUNCOM DBA T-MOBILE USA
919-925 Franklinton BANDWIDTH.COM CLEC, LLC - NC
919-926 Raleigh LEVEL 3 COMMUNICATIONS, LLC - NC

FAQ

Where is 919-923 located?

The prefix is assigned to the Chapel Hill rate center in NC, area code 919. It is part of the Durham-Chapel Hill, NC Metropolitan Statistical Area.

Which company owns 919-923 numbers?

SUNCOM DBA T-MOBILE USA 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 919-923 safe to answer?

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