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Area Code 858 Location & Details

State / Region: California • Country: United States

Major Cities Covered: San Diego, Chula Vista, El Cajon, La Mesa, Santee, National City, Poway, Lemon Grove, Imperial Beach, Coronado

Standard Dial Format
+1 (858) XXX-XXXX
Country Code: +1 (NANP Format)
What State is Area Code 858?
CaliforniaState Hub →
Country Territory
United States
858 Area Code Time Zone
Pacific
858 Overlay Codes
619

Area Code 858 Geographic Map

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

Lat: 32.79° • Lng: -117.09°
📍 Geographic Center: CaliforniaMap data © OpenStreetMap contributors

Where is Area Code 858 Located?

Telephone area code 858 is assigned to California in United States. It serves cities and metropolitan communities including San Diego, Chula Vista, El Cajon, La Mesa, Santee, National City, Poway, Lemon Grove, Imperial Beach, Coronado.

Historical Context & Area Code Overlay Information:858 serves California (United States).

For local and long-distance calls within area code 858, standard 10-digit dialing (858) XXX-XXXX applies.

Who Called Me from Area Code 858?

Received an unknown call, missed call, or text scam from area code 858? Here is how to trace who is calling from 858 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 858 prefix to boost pick-up rates.

3.
Reverse Phone Lookup Area Code 858:

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

Learn How Reverse Phone Lookups Work→

How to Call Area Code 858 & Dialing Format

When placing a phone call to a number in area code 858, follow the correct dialing format depending on your calling location:

  • Calling from inside the US / Canada (+1): Dial 1 + (858) + 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 + 858 + 7-digit number.
  • Do I need to dial area code 858 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 858

Urban centers, census places, and communities within the +1-858 calling area

12 Major Cities Listed
City NameCountyPopulation% of 858 Pop
San DiegoSan Diego County1,406,10667.0%
Chula VistaSan Diego County275,53313.1%
El CajonSan Diego County101,7554.8%
La MesaSan Diego County59,9142.9%
SanteeSan Diego County58,2052.8%
National CitySan Diego County57,8072.8%
PowaySan Diego County49,1802.3%
Lemon GroveSan Diego County27,9361.3%
Imperial BeachSan Diego County25,2061.2%
CoronadoSan Diego County21,0941.0%
Solana BeachSan Diego County12,6020.6%
Del MarSan Diego County3,8580.2%

Counties Covered by Area Code 858

Geographic county distribution and population coverage across California

County NameTotal Population% of 858 Area% of County
San Diego County3,287,542100.0%64%

☎️Area Code 858 Exchange Prefixes & Carriers

Showing 50 of 574 central office 3-digit prefixes and assigned telecom carriers

70% Landline22% Wireless8% VoIP
PrefixLine UsageRate CenterAssigned CarrierAssign Date
(858) 200-📞LandlineLA JOLLAU.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONSN/A
(858) 201-📞LandlineSNDG MRMSLEVEL 3 COMMUNICATIONS, LLC - CAN/A
(858) 202-📞LandlineLA JOLLAPACIFIC BELLN/A
(858) 203-💻VoIPLA JOLLAONVOY, LLC - CA01/27/2016
(858) 204-📱WirelessPOWAYCELLCO PARTNERSHIP DBA VERIZON WIRELESS - CAN/A
(858) 205-📱WirelessDEL MART-MOBILE USA, INC.01/16/2002
(858) 206-💻VoIPPOWAYONVOY, LLC - CA11/21/2006
(858) 207-📞LandlineRNCHOBRNDOTELEPORT COMMUNICATIONS AMERICA, LLC - CAN/A
(858) 208-📱WirelessPOWAYNEW CINGULAR WIRELESS PCS, LLCN/A
(858) 209-📱WirelessDEL MART-MOBILE USA, INC.05/22/2017
(858) 210-📱WirelessLA JOLLACELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA07/21/2008
(858) 211-📞LandlineXXXXXXXXXXMULTIPLE OCN LISTINGN/A
(858) 212-📱WirelessPOWAYT-MOBILE USA, INC.N/A
(858) 213-📱WirelessPOWAYT-MOBILE USA, INC.N/A
(858) 214-📱WirelessLA JOLLAT-MOBILE USA, INC.11/22/2017
(858) 215-📞LandlineRNCHOPNQTSPACIFIC BELL03/30/2007
(858) 216-📞LandlineRNCHOPNQTSU.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONSN/A
(858) 217-📞LandlineRNCHOBRNDOU.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONSN/A
(858) 218-📞LandlinePOWAYU.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONSN/A
(858) 219-📞LandlineSNDG LVTAAMERICAN MESSAGING SERVICES, LLCN/A
(858) 220-📱WirelessLA JOLLAT-MOBILE USA, INC.01/18/2002
(858) 221-💻VoIPSNDG LVTAONVOY, LLC - CAN/A
(858) 222-💻VoIPLA JOLLAONVOY, LLC - CA10/13/2008
(858) 223-💻VoIPSNDG LVTAONVOY, LLC - CA06/10/2013
(858) 224-💻VoIPLA JOLLAONVOY, LLC - CAN/A
(858) 225-📞LandlineSNDG MRMSMATRIX TELECOM, LLC. S/I/I TNCI - CAN/A
(858) 226-📱WirelessSNDG MRMSCELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA09/09/2014
(858) 227-📞LandlineRNCHOSANFEMCIMETRO ACCESS TRANSMISSION SERVICES LLC - CAN/A
(858) 228-📞LandlineLA JOLLAMCIMETRO ACCESS TRANSMISSION SERVICES LLC - CAN/A
(858) 229-📱WirelessSNDG MRMSCELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA09/13/2001
(858) 230-📞LandlineLA JOLLAAT&T ENTERPRISES, LLC08/23/2011
(858) 231-📱WirelessPOWAYT-MOBILE USA, INC.12/14/2001
(858) 232-📱WirelessLA JOLLANEW CINGULAR WIRELESS PCS, LLCN/A
(858) 233-📞LandlineLA JOLLANORTH COUNTY COMMUNICATION CORPORATION - CAN/A
(858) 234-📞LandlineRNCHOBRNDONORTH COUNTY COMMUNICATION CORPORATION - CAN/A
(858) 235-📞LandlineLA JOLLAPAETEC ITEL, LLC12/23/2019
(858) 236-📞LandlinePOWAYNORTH COUNTY COMMUNICATION CORPORATION - CAN/A
(858) 237-📞LandlineSNDG MRMSNORTH COUNTY COMMUNICATION CORPORATION - CAN/A
(858) 238-📱WirelessEL CAJONNEW CINGULAR WIRELESS PCS, LLC09/08/2020
(858) 239-💻VoIPSNDG MRMSONVOY, LLC - CA12/05/2014
(858) 240-📞LandlineRNCHOPNQTSLEVEL 3 TELECOM OF CALIFORNIA, LP - CAN/A
(858) 241-📱WirelessLA JOLLAT-MOBILE USA, INC.01/08/2021
(858) 242-📱WirelessLA JOLLANEW CINGULAR WIRELESS PCS, LLC06/20/2011
(858) 243-📱WirelessPOWAYCELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA05/17/2001
(858) 244-📞LandlineSNDG LVTAMCIMETRO ACCESS TRANSMISSION SERVICES LLC - CAN/A
(858) 245-📱WirelessLA JOLLACELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA09/17/2001
(858) 246-📞LandlineLA JOLLALEVEL 3 TELECOM OF CALIFORNIA, LP - CA07/03/2007
(858) 247-📞LandlineLA JOLLATERRA NOVA TELECOM INC.N/A
(858) 248-📱WirelessPOWAYCELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA10/18/2001
(858) 249-📱WirelessLA JOLLANEW CINGULAR WIRELESS PCS, LLC10/04/2012

Frequently Asked Questions about Area Code 858

Where is area code 858 located?

Area code 858 is located in California (United States), serving cities like San Diego, Chula Vista, El Cajon, La Mesa, Santee, National City, Poway, Lemon Grove, Imperial Beach, Coronado.

What timezone is area code 858?

Area code 858 operates in the Pacific timezone.

What state is area code 858?

Area code 858 is assigned to the state / telecom territory of California.

Is area code 858 a scam or dangerous?

Area code 858 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 858 Business Phone Number

How to acquire a virtual phone number or business line with area code 858 for local customer trust in California.

Get 858 Business Number
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Overlay & Nearby Area Codes for California

Explore neighboring telecom prefixes sharing geographical boundaries with area code 858.

619
Pacific
Area Code 619
San Diego, Chula Vista, El Cajon, La Mesa, Santee, National City, Poway, Lemon Grove, Imperial Beach, Coronado
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