Area code 509

Where area code 509 is

NANPA lists 509 as an in-service geographic area code for Washington, first put into service on January 1, 1957. It is not part of an overlay, so every number in its territory starts with 509. It is in the Pacific time zone. The places with the most assigned exchanges include Spokane, Yakima, Kennewick, Wenatchee, and Pasco. By population, its largest named places are Spokane, Yakima, Kennewick, Pasco, and Richland.

Places served by 509

509 holds 22% of the 3,531 central office codes assigned in Washington, the 2nd most of the state's 6 codes. 90 Census places could be matched to rate centers with 509 exchanges; the most populous are Spokane (231,000), Yakima (97,390), Kennewick (86,728), and Pasco (81,724). For a storefront or service area inside 509, the place pages show which prefixes are rated local there.

Dialing 509 numbers

According to NANPA's dialing-plan data, local calls within 509 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. NANPA's dialing-plan note for this code reads: "1+10 digit permissible at service provider discretion."

Who holds 509 exchanges

66 carriers hold the 762 central office codes assigned in 509. Qwest Corporation has the most, with 130 (17%). 567 of the codes (74%) 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.

Rate centers and towns in 509

NANPA assigns each central office code to a rate center, the local calling area that decides whether a call is local or toll. 509 has codes in 119 rate centers. The table lists the rate centers with the most codes, with the matching Census place where the abbreviation could be matched.

Number supply in 509

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). 762 are assigned in 509, 95% of 800. 67 were assigned in 2020 or later. NANPA reports relief planning in progress for 509, the process used to add a new area code when one is projected to run out of codes.

A local 509 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 509, 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.