Prefix 202-597 — Washington Zone 1, DC

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

Area code
202
Prefix (NXX)
597
Rate center
Washington Zone 1
State
District of Columbia
Time zone
Eastern
Code holder
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC
OCN
6402
Pooled
Yes (thousands-block pooling)
Assigned
2015-09-22
LATA
236

The 202-597 prefix belongs to area code 202 and is anchored to the Washington Zone 1 rate center (DC). In NANP terms, the prefix — or NXX — determines the rate center a number is billed against.

Washington Zone 1 is part of the Washington-Arlington-Alexandria, DC-VA-MD-WV Metropolitan Statistical Area. For routing purposes it sits in LATA 236. Numbers here keep Eastern time.

The assigned code holder is CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC, operating company number 6402, assigned September 22, 2015. This is a pooled prefix — expect numbers within it to be split across more than one carrier in 1,000-number blocks.

Caller ID showing 202-597 is not proof the call came from Washington Zone 1: 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 202-597
PrefixRate centerCode holder
202-594 Washington Zone 1 MCIMETRO ACCESS TRANSMISSION SERVICES LLC
202-595 Washington Zone 1 LEVEL 3 COMMUNICATIONS, LLC - DC
202-596 Washington Zone 1 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC
202-598 Washington Zone 1 VERIZON WASHINGTON DC, INC.
202-599 Washington Zone 1 BANDWIDTH.COM CLEC, LLC - DC
202-600 Washington Zone 1 ONVOY, LLC - DC

FAQ

Where is 202-597 located?

The prefix is assigned to the Washington Zone 1 rate center in DC, area code 202. It is part of the Washington-Arlington-Alexandria, DC-VA-MD-WV Metropolitan Statistical Area.

Which company owns 202-597 numbers?

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 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 202-597 safe to answer?

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