Prefix 503-995 — Portland, OR

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

Area code
503
Prefix (NXX)
995
Rate center
Portland
State
Oregon
Time zone
Pacific
Code holder
NEW CINGULAR WIRELESS PCS, LLC
OCN
6010
Pooled
Yes (thousands-block pooling)
Assigned
2007-02-08
LATA
672

The 503-995 prefix belongs to area code 503 and is anchored to the Portland rate center (OR). In NANP terms, the prefix — or NXX — determines the rate center a number is billed against.

Portland is part of the Portland-Vancouver-Hillsboro, OR-WA Metropolitan Statistical Area. For routing purposes it sits in LATA 672. Numbers here keep Pacific time.

NANPA's central-office code records list NEW CINGULAR WIRELESS PCS, LLC (OCN 6010) as the code holder, assigned February 8, 2007. Because 503-995 participates in thousands-block pooling, individual 1,000-number blocks may belong to other carriers than the code holder.

Caller ID showing 503-995 is not proof the call came from Portland: 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 503-995
PrefixRate centerCode holder
503-992 Beaverton ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER
503-993 Portland SPOK, INC.
503-994 Warrenton ONVOY, LLC - OR
503-996 Mount Angel ASTOUND BROADBAND, LLC - OR
503-997 Portland T-MOBILE USA, INC.
503-998 Portland T-MOBILE USA, INC.

FAQ

Where is 503-995 located?

The prefix is assigned to the Portland rate center in OR, area code 503. It is part of the Portland-Vancouver-Hillsboro, OR-WA Metropolitan Statistical Area.

Which company owns 503-995 numbers?

NEW CINGULAR WIRELESS PCS, 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 503-995 safe to answer?

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