Area Code 503 Phone Number
for Your Business
Get a local 503 number for your business in Portland, OR. Cloud VoIP with SMS, an auto attendant (IVR), and more — starting at $30/ext/mo. No contracts.
What Is Area Code 503?
Area code 503 is a North American telephone area code serving Portland, Oregon and 1 other city in the region. It is one of the original 1947 North American area codes and operates on Pacific Time. It is part of the 503/971 overlay complex. Businesses operating in the 503 area code region use local numbers to build trust with customers, improve answer rates, and establish a professional local presence.
With Zonitel, you can get a new 503 area code number or port your existing one with guided onboarding — no hardware required. Your team can make and receive calls from any device using the Zonitel mobile app or web portal.
Area Code 503 at a Glance
- Region
- Portland / Salem / Willamette Valley, Oregon
- In service
- One of the original 1947 North American area codes
- Time zone
- Pacific Time
- Overlay
- Shares its territory with 971; local calls use 10-digit dialing
- Later split off
- 541 was created from 503's territory
- Telemarketing hours
- 8 a.m.–9 p.m. Pacific Time for residential numbers (TCPA, 47 CFR 64.1200(c)(1))
Cities Served by Area Code 503
Why Your Business Needs a 503 Local Number
A local number tells customers you're part of the community. People in Portland are more likely to pick up a call from a 503 number they recognize than from an unfamiliar out-of-area number.
Everything Included With Your 503 Number
Zonitel is not just a phone number — it's a complete cloud business phone system. Every plan includes:
Frequently Asked Questions About Area Code 503
What cities use area code 503?
Area code 503 serves the Portland / Salem / Willamette Valley area of Oregon. Cities in the 503 region include Portland, OR; Salem, OR.
Is area code 503 an overlay?
Yes. 503 is part of the 503/971 overlay, so new numbers in this region can come from any of those area codes, and local calls require 10-digit dialing.
What time zone is area code 503 in?
Area code 503 is in Pacific Time. Telemarketing calls to residential 503 numbers are limited to 8 a.m.–9 p.m. Pacific Time under the TCPA (47 CFR 64.1200(c)(1)).
Can I get a 503 number for my business without moving there?
Yes. With Zonitel's cloud VoIP, you can get a 503 area code number regardless of where your business is physically located. This lets you establish a local presence in Portland without a physical office.
Can I keep my existing 503 number and switch to Zonitel?
Yes. Number porting is free. Porting commonly takes 5–10 business days depending on your current carrier, and your old service stays active until the coordinated cutover.
How much does a 503 business phone number cost?
Zonitel plans start at $30/extension/month plus tax, with no setup fees and no contracts. Your 503 local number is included in the plan.
Get Your 503 Area Code Number Today
30-day free trial. No annual contract required. Guided onboarding.