CallataGuides

Area code 369

Where 369 is, how it is dialed, which carriers hold its numbers and how many of its codes are in use, from NANPA's 10/01/2026 files.

State
CA
In service
2023
Assigned codes
51of 800 possible
Carriers
13

Where area code 369 is

369 is one of 41 geographic area codes serving California; NANPA records its in-service date as February 1, 2023. It is an overlay: 369 and 707 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 Santa Rosa, Dixon, Healdsburg, Sonoma, and Benicia. By population, its largest named places are Santa Rosa, Vallejo, Vacaville, Napa, and Benicia.

Area code 369: NANPA facts
ItemValue
StateCalifornia
In service sinceFebruary 1, 2023
Assigned by NANPAJune 23, 2022
OverlayYes, with 707
Parent area code (NANPA)707
Time zonePacific
Local calls within the code1 plus ten digits
Assigned central office codes51
Rate centers with codes32
Carriers holding codes13
Pooled codes49
Codes assigned since 202051
Relief planning in progressNo

Source: NANPA NPA report and utilized central office code file, both dated 10/01/2026.

Cities and towns in area code 369

369 holds 0.23% of the 22,087 central office codes assigned in California, the 38th most of the state's 41 codes. 18 Census places could be matched to rate centers with 369 exchanges; the most populous are Santa Rosa (178,000), Vallejo (123,000), Vacaville (104,000), and Napa (76,921). For a storefront or service area inside 369, the place pages show which prefixes are rated local there.

Most populous places with 369 exchanges
PlacePopulation (2024)Area codesExchangesCarriers
Santa Rosa, CA177,524369, 70715426
Vallejo, CA123,475369, 7075115
Vacaville, CA103,994369, 7073812
Napa, CA76,921369, 7074416
Benicia, CA26,477369, 7072311
Windsor, CA25,846369, 707117
Eureka, CA25,412369, 7073815
Dixon, CA20,296369, 707109
Arcata, CA18,748369, 707114
Ukiah, CA16,067369, 7072310
Fortuna, CA12,114369, 70765
Healdsburg, CA11,231369, 707106
Sonoma, CA10,606369, 7071811
Crescent City, CA6,209369, 70796
Lakeport, CA5,104369, 707127

Population: Census Vintage 2024 estimates for the matched place. Exchanges and carriers: NANPA utilized code file.

Dialing 369 numbers

According to NANPA's dialing-plan data, local calls within 369 are dialed as 1 plus ten digits 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 369 exchanges

13 carriers hold the 51 central office codes assigned in 369. New Cingular Wireless PCS, LLC has the most, with 11 (22%). 49 of the codes (96%) 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.

Largest code holders in area code 369
Carrier (NANPA operating company)ExchangesShare
New Cingular Wireless PCS, LLC1122%
T-mobile USA, INC.918%
Onvoy, LLC - CA816%
Commio, LLC714%
Wide Voice, LLC - CA47.8%
Cellco Partnership d/b/a Verizon Wireless - CA35.9%
Shelcomm23.9%
Onvoy Spectrum, LLC23.9%
Boost Subscriberco L.l.c.12.0%
Teleport Communications America, LLC - CA12.0%
Metropcs, INC.12.0%
Paetec Itel, LLC12.0%

Carrier names are the operating company (OCN) names on NANPA's utilized central office code file dated 10/01/2026. A carrier holding a code may port numbers to other carriers.

Where 369 numbers are rated

NANPA assigns each central office code to a rate center, the local calling area that decides whether a call is local or toll. 369 has codes in 32 rate centers. The table lists the rate centers with the most codes, with the matching Census place where the abbreviation could be matched.

Rate centers in area code 369 by assigned codes
Rate center (NANPA)PlaceCodes
SANTA ROSASanta Rosa, CA10
FRFLD-SUISnot matched3
LOWER LAKEnot matched3
DIXONDixon, CA2
MIRANDAnot matched2
HEALDSBURGHealdsburg, CA2
SONOMASonoma, CA2
BENICIABenicia, CA2
EUREKAEureka, CA2
BRIDGEVLnot matched1
CLERLAOAKSnot matched1
GUERNEVLnot matched1
TRINIDADTrinidad, CA1
NAPANapa, CA1
UKIAHUkiah, CA1
VALLEJOVallejo, CA1
VACAVILLEVacaville, CA1
WINDSORWindsor, CA1
ARCATAArcata, CA1
POINTARENAPoint Arena, CA1
CRESCENTCYCrescent City, CA1
LAKEPORTLakeport, CA1
FORTUNAFortuna, CA1
PTLM SWIFTnot matched1
PTLM MAINnot matched1

Top 25 of 32 rate centers.

369 code assignments over time

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). 51 are assigned in 369, 6.4% of 800. 51 were assigned in 2020 or later.

Area code 369: central office codes by decade assigned
Decade assignedExchangesShare
2020s51100%

Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.

Using area code 369 for business calls

Callata Office costs $99 per month for up to 5 people, and each additional user is $20 a month. That covers up to 3 local numbers, calling from a browser or your cell, transcribed voicemail, recorded calls with AI summaries, after-hours routing and E911 on each number.

If you already have a number in area code 369, 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.

Frequently asked questions

Where is area code 369?

369 is a geographic area code in California. Places with the most assigned exchanges include Santa Rosa, Dixon, Healdsburg, and Sonoma.

What time zone is area code 369 in?

NANPA lists 369 in the Pacific time zone.

When did area code 369 go into service?

NANPA records an in-service date of February 1, 2023. The code was assigned on June 23, 2022.

Is 369 an overlay area code?

Yes. It shares its territory with 707.

Can my business get a 369 phone number?

Callata includes up to 3 local numbers on its $99/month plan (5 users included). Which 369 numbers are open depends on carrier inventory when you choose, and you can port an existing number for free.