Prefix 503-729 — Portland, OR

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

Area code
503
Prefix (NXX)
729
Rate center
Portland
State
Oregon
Time zone
Pacific
Code holder
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR
OCN
5820
Pooled
Yes (thousands-block pooling)
Assigned
2006-10-23
LATA
672

Numbers in the 503-729 prefix are registered to the Portland rate center in OR, inside area code 503. The prefix is the second block of a ten-digit US number (503-729-XXXX) and pins the number to a billing locality.

Code-holder of record: CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR (OCN 5820), assigned October 23, 2006. The prefix is pooled: its ten thousands-blocks can be shared among several carriers, so different 503-729 numbers may be served by different companies.

The rate center lies in the Portland-Vancouver-Hillsboro, OR-WA Metropolitan Statistical Area. The serving LATA is 672. Local time follows the Pacific zone.

Spoofing means this prefix on your screen doesn't guarantee a Portland caller. Verify independently before trusting a request for money or data.

Neighboring prefixes

Prefixes adjacent to 503-729
PrefixRate centerCode holder
503-726 Beaverton ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM
503-727 Portland QWEST CORPORATION
503-728 Clatskanie ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER
503-730 Portland CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR
503-731 Portland QWEST CORPORATION
503-732 Beaver Creek LEVEL 3 TELECOM OF OREGON, LLC - OR

FAQ

Where is 503-729 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 503-729 numbers?

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 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 503-729 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.