Reference Data

Rate Center Directory

PRESTON, MD Rate Center

PRESTON — MD

Data last updated: March 10, 2026

LATA

242

State

MD

Area Codes

2

Exchanges (NXX)

4

Carriers

4

Coordinates

38.71247803522387, -75.9092012802124

Area Codes

410 667

Top Carriers

Carrier	OCN	NXX Count
CORE COMMUNICATIONS, INC.- MD	2593	1
ONVOY, LLC - MD	876D	1
VERIZON MARYLAND, INC.	9212	1
COMMIO, LLC	939H	1