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Area Code 831 Location & Details

State / Region: California • Country: United States

Major Cities Covered: Salinas, Santa Cruz, Watsonville, Hollister, Seaside, Monterey, Soledad, Pacific Grove, King City, Scotts Valley

Standard Dial Format
+1 (831) XXX-XXXX
Country Code: +1 (NANP Format)
What State is Area Code 831?
CaliforniaState Hub →
Country Territory
United States
831 Area Code Time Zone
Pacific
831 Overlay Codes
No Overlays

Area Code 831 Geographic Map

Interactive location bounds and coverage area for California (Pacific Timezone)

Lat: 36.68° • Lng: -121.68°
📍 Geographic Center: CaliforniaMap data © OpenStreetMap contributors

Where is Area Code 831 Located?

Telephone area code 831 is assigned to California in United States. It serves cities and metropolitan communities including Salinas, Santa Cruz, Watsonville, Hollister, Seaside, Monterey, Soledad, Pacific Grove, King City, Scotts Valley.

Historical Context & Area Code Overlay Information:831 serves California (United States).

For local and long-distance calls within area code 831, standard 10-digit dialing (831) XXX-XXXX applies.

Who Called Me from Area Code 831?

Received an unknown call, missed call, or text scam from area code 831? Here is how to trace who is calling from 831 area code and verify unknown numbers safely:

1.
Identify Missed Calls & Voicemails:

Legitimate contacts usually leave a detailed voicemail or caller ID record.

2.
Watch Out for Neighbor Spoofing:

Robocallers often fake incoming caller ID numbers using your local 831 prefix to boost pick-up rates.

3.
Reverse Phone Lookup Area Code 831:

Search public white-pages or use caller intelligence guides before returning unfamiliar calls.

Learn How Reverse Phone Lookups Work→

How to Call Area Code 831 & Dialing Format

When placing a phone call to a number in area code 831, follow the correct dialing format depending on your calling location:

  • Calling from inside the US / Canada (+1): Dial 1 + (831) + 7-digit number.
  • Calling from an international location outside +1: Dial your country's international exit code (e.g. 011 in US or + on mobile) + 1 + 831 + 7-digit number.
  • Do I need to dial area code 831 for local calls? Yes, 10-digit dialing (area code + line number) is mandatory across North American telephone networks.

Top Cities & Municipalities Served in Area Code 831

Urban centers, census places, and communities within the +1-831 calling area

13 Major Cities Listed
City NameCountyPopulation% of 831 Pop
SalinasSanta Cruz County159,13434.7%
Santa CruzSanta Cruz County61,79713.5%
WatsonvilleSanta Cruz County50,71611.1%
HollisterSan Benito County45,69510.0%
SeasideSanta Cruz County31,6366.9%
MontereySanta Cruz County28,9536.3%
SoledadMonterey County26,3575.8%
Pacific GroveSanta Cruz County14,6593.2%
King CityMonterey County14,0023.1%
Scotts ValleySanta Cruz County11,6522.5%
GonzalesMonterey County8,3131.8%
Carmel-By-The-SeaSanta Cruz County3,1050.7%
San Juan BautistaSanta Clara County2,1220.5%

Counties Covered by Area Code 831

Geographic county distribution and population coverage across California

County NameTotal Population% of 831 Area% of County
Santa Cruz County261,41778.9%100%
Monterey County433,44710.6%11%
San Benito County69,08510.0%66%
Santa Clara County1,907,9100.5%0%

☎️Area Code 831 Exchange Prefixes & Carriers

Showing 50 of 441 central office 3-digit prefixes and assigned telecom carriers

67% Landline21% Wireless12% VoIP
PrefixLine UsageRate CenterAssigned CarrierAssign Date
(831) 200-💻VoIPMONTEREYPEERLESS NETWORK OF CALIFORNIA, LLC - CA11/26/2014
(831) 201-📱WirelessSANTA CRUZNEW CINGULAR WIRELESS PCS, LLC09/07/2016
(831) 202-📞LandlineSALINASMCIMETRO ACCESS TRANSMISSION SERVICES LLC03/30/2018
(831) 203-📞LandlineSALINASNUSO, LLC08/10/2023
(831) 204-💻VoIPMONTEREYONVOY, LLC - CAN/A
(831) 205-📞LandlineHOLLISTERTELEPORT COMMUNICATIONS AMERICA, LLC - CA10/08/2009
(831) 206-📱WirelessSALINASCELLCO PARTNERSHIP DBA VERIZON WIRELESS - CAN/A
(831) 207-📱WirelessHOLLISTERT-MOBILE USA, INC.09/12/2001
(831) 208-📱WirelessSALINASCELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA03/20/2019
(831) 209-📞LandlineCALocal Exchange CarrierN/A
(831) 210-📱WirelessSALINAST-MOBILE USA, INC.01/16/2002
(831) 211-📞LandlineXXXXXXXXXXMULTIPLE OCN LISTINGN/A
(831) 212-📱WirelessSANTA CRUZMETROPCS, INC.N/A
(831) 213-📞LandlineCALocal Exchange CarrierN/A
(831) 214-📱WirelessSALINASNEW CINGULAR WIRELESS PCS, LLCN/A
(831) 215-📞LandlineMONTEREYHD CARRIER LLC10/02/2020
(831) 216-📞LandlineFELTONTELEPORT COMMUNICATIONS AMERICA, LLC - CAN/A
(831) 217-📞LandlineBOULDERCRKTELEPORT COMMUNICATIONS AMERICA, LLC - CAN/A
(831) 218-📞LandlineBEN LOMONDTELEPORT COMMUNICATIONS AMERICA, LLC - CAN/A
(831) 219-📞LandlineAPTOSTELEPORT COMMUNICATIONS AMERICA, LLC - CAN/A
(831) 220-📞LandlineMONTEREYVONAGE AMERICA LLC05/31/2018
(831) 221-📞LandlineSAN ARDOIP HORIZON LLCN/A
(831) 222-📞LandlineFELTONU.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONSN/A
(831) 223-📞LandlineSOLEDADLEVEL 3 COMMUNICATIONS, LLC - CAN/A
(831) 224-📱WirelessMONTEREYT-MOBILE USA, INC.N/A
(831) 225-📞LandlineSALINASCENTURYLINK COMMUNICATIONS, LLC06/23/2015
(831) 226-📞LandlineSANTA CRUZAT&T ENTERPRISES, LLC07/16/2015
(831) 227-📱WirelessSANTA CRUZCELLCO PARTNERSHIP DBA VERIZON WIRELESS - CAN/A
(831) 228-📞LandlineWATSONVLCHARTER IP ENABLED SERVICES, LLC09/21/2015
(831) 229-📱WirelessSALINASNEW CINGULAR WIRELESS PCS, LLCN/A
(831) 230-📞LandlineMONTEREYTELNYX LLC12/15/2016
(831) 231-💻VoIPGREENFIELDONVOY SPECTRUM, LLC05/03/2019
(831) 232-📞LandlineCHUALARIP HORIZON LLCN/A
(831) 233-📞LandlineMONTEREYLEVEL 3 COMMUNICATIONS, LLC - CAN/A
(831) 234-📱WirelessSANTA CRUZCELLCO PARTNERSHIP DBA VERIZON WIRELESS - CAN/A
(831) 235-📱WirelessSALINASCELLCO PARTNERSHIP DBA VERIZON WIRELESS - CAN/A
(831) 236-📱WirelessMONTEREYCELLCO PARTNERSHIP DBA VERIZON WIRELESS - CAN/A
(831) 237-📞LandlineSOLEDADIP HORIZON LLCN/A
(831) 238-📱WirelessCARMELNEW CINGULAR WIRELESS PCS, LLCN/A
(831) 239-📱WirelessSANTA CRUZNEW CINGULAR WIRELESS PCS, LLCN/A
(831) 240-📱WirelessSALINAST-MOBILE USA, INC.N/A
(831) 241-📞LandlineMONTEREYAT&T - LOCALN/A
(831) 242-📞LandlineMONTEREYPACIFIC BELLN/A
(831) 243-📱WirelessSALINASCSC WIRELESS, LLC06/29/2020
(831) 244-💻VoIPBIG SURBANDWIDTH.COM CLEC, LLC - CAN/A
(831) 245-📱WirelessHOLLISTERCELLCO PARTNERSHIP DBA VERIZON WIRELESS - CAN/A
(831) 246-📱WirelessBEN LOMONDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - CAN/A
(831) 247-📱WirelessSANTA CRUZCELLCO PARTNERSHIP DBA VERIZON WIRELESS - CAN/A
(831) 248-📞LandlineCALocal Exchange CarrierN/A
(831) 249-📞LandlineBIG SURAT&T ENTERPRISES, LLC12/14/2009

Frequently Asked Questions about Area Code 831

Where is area code 831 located?

Area code 831 is located in California (United States), serving cities like Salinas, Santa Cruz, Watsonville, Hollister, Seaside, Monterey, Soledad, Pacific Grove, King City, Scotts Valley.

What timezone is area code 831?

Area code 831 operates in the Pacific timezone.

What state is area code 831?

Area code 831 is assigned to the state / telecom territory of California.

Is area code 831 a scam or dangerous?

Area code 831 is an official geographic area code for California. However, beware of robocaller spoofing.

California State Area Codes

View complete directory of telephone area codes assigned to California.

Explore California Directory

Get a 831 Business Phone Number

How to acquire a virtual phone number or business line with area code 831 for local customer trust in California.

Get 831 Business Number
🛡️ Scam & Safety Directory

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Overlay & Nearby Area Codes for California

Explore neighboring telecom prefixes sharing geographical boundaries with area code 831.

209
Pacific
Area Code 209
Stockton, Modesto, Tracy, Merced, Manteca, Turlock, Lodi, Los Banos, Ceres, Lathrop
213
Pacific
Area Code 213
Los Angeles, Montebello, Commerce, Vernon
279
Pacific
Area Code 279
Sacramento, Elk Grove, Roseville, Folsom, Rancho Cordova, Citrus Heights, Rocklin, Lincoln, West Sacramento, Loomis
310
Pacific
Area Code 310
Torrance, Inglewood, Carson, Compton, Santa Monica, South Gate, Hawthorne, Redondo Beach, Lynwood, Gardena
323
Pacific
Area Code 323
Los Angeles, South Gate, Montebello, Huntington Park, Bell Gardens, Commerce, Vernon
341
Pacific
Area Code 341
Oakland, Fremont, Hayward, Berkeley, Richmond, San Leandro, Milpitas, Alameda, Union City, Newark