Prefix 410-420 — Bel Air, MD

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

Area code
410
Prefix (NXX)
420
Rate center
Bel Air
State
Maryland
Time zone
Eastern
Code holder
VERIZON MARYLAND, INC.
OCN
9212
Pooled
Yes (thousands-block pooling)
LATA
238

A phone number starting 410-420 was issued in the Bel Air rate center of MD — part of area code 410.

NANPA's central-office code records list VERIZON MARYLAND, INC. (OCN 9212) as the code holder. Because 410-420 participates in thousands-block pooling, individual 1,000-number blocks may belong to other carriers than the code holder.

A scammer can display 410-420 without ever touching MD. 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.

Bel Air is part of the Baltimore-Columbia-Towson, MD Metropolitan Statistical Area. For routing purposes it sits in LATA 238. Numbers here keep Eastern time.

Neighboring prefixes

Prefixes adjacent to 410-420
PrefixRate centerCode holder
410-417 Edgewood VERIZON MARYLAND, INC.
410-418 Ellicott City VERIZON MARYLAND, INC.
410-419 Baltimore OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC
410-421 Severna Park VERIZON MARYLAND, INC.
410-422 Salisbury NEW CINGULAR WIRELESS PCS, LLC - DC
410-423 Columbia TELEPORT COMMUNICATIONS AMERICA, LLC - MD

FAQ

Where is 410-420 located?

The prefix is assigned to the Bel Air rate center in MD, area code 410. It is part of the Baltimore-Columbia-Towson, MD Metropolitan Statistical Area.

Which company owns 410-420 numbers?

VERIZON MARYLAND, 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 410-420 safe to answer?

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