Prefix 202-290 — Washington Zone 1, DC

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

Area code
202
Prefix (NXX)
290
Rate center
Washington Zone 1
State
District of Columbia
Time zone
Eastern
Code holder
OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC
OCN
6855
Pooled
Yes (thousands-block pooling)
Assigned
2006-12-02
LATA
236

The 202-290 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 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC, operating company number 6855, assigned December 2, 2006. 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 202-290 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 202-290
PrefixRate centerCode holder
202-287 Washington Zone 1 VERIZON WASHINGTON DC, INC.
202-288 Washington Zone 1 NEW CINGULAR WIRELESS PCS, LLC - DC
202-289 Washington Zone 1 VERIZON WASHINGTON DC, INC.
202-291 Washington Zone 1 VERIZON WASHINGTON DC, INC.
202-292 Washington Zone 1 MCIMETRO ACCESS TRANSMISSION SERVICES LLC
202-293 Washington Zone 1 VERIZON WASHINGTON DC, INC.

FAQ

Where is 202-290 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 202-290 numbers?

OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 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 202-290 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.