Area code 503

About area code 503

Area code 503 is a geographic area code in Oregon, in service since January 1, 1947, according to the North American Numbering Plan Administrator (NANPA). It is an overlay: 503 and 971 cover the same territory, so neighbors on the same street can have different area codes. It is in the Pacific time zone. The places with the most assigned exchanges include Portland, Beaverton, Salem, Gresham, and McMinnville. By population, its largest named places are Portland, Salem, Gresham, Beaverton, and McMinnville.

Where 503 numbers are local

503 holds 35% of the 2,230 central office codes assigned in Oregon, the most of any code in the state. 42 Census places could be matched to rate centers with 503 exchanges; the most populous are Portland (636,000), Salem (180,000), Gresham (112,000), and Beaverton (98,302). For a storefront or service area inside 503, the place pages show which prefixes are rated local there.

Dialing 503 numbers

According to NANPA's dialing-plan data, local calls within 503 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits. Ten-digit local dialing means the area code is part of how customers save and recognize your number, so print it in full everywhere.

Who holds 503 exchanges

41 carriers hold the 784 central office codes assigned in 503. Qwest Corporation has the most, with 222 (28%). 367 of the codes (47%) are pooled, meaning the code holder shares blocks of 1,000 numbers with other carriers instead of using all 10,000 itself. Numbers can move between carriers through porting, so a code's holder tells you where the block started, not where every number lives now.

Local calling areas in 503

NANPA assigns each central office code to a rate center, the local calling area that decides whether a call is local or toll. 503 has codes in 63 rate centers. The table lists the rate centers with the most codes, with the matching Census place where the abbreviation could be matched.

How full is area code 503?

An area code has 800 possible central office codes that start with 2 through 9, a few of which are reserved (such as N11 service codes and 555). 784 are assigned in 503, 98% of 800. 2 were assigned in 2020 or later.

A local 503 number on Callata

For $99 a month, Callata puts a team of up to 5 on one plan ($20 for each person after that): up to 3 local numbers, unlimited inbound calls, a pooled allowance of 1,500 outbound US and Canada minutes per user, browser and cell calling, voicemail transcription with urgency triage, recorded calls with AI summaries and business-hours routing, with E911 on every number.

If you already have a number in area code 503, porting it to Callata is free. Texting from a local number requires a one-time carrier registration (10DLC, $49), and the numbers available in any area code depend on carrier inventory when you choose them.

Optional AI agents (receptionist, sales, support or scheduler) can answer calls after hours or when nobody picks up, take messages, text, email and transfer to your team. They are billed from prepaid AI minutes at $0.25 per minute, identify themselves as AI, and may only place outbound calls to people who consented, between 8am and 9pm.