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San Joaquin, California Phone Lookup

Find the owner of any phone number in San Joaquin, California.

What Phone Numbers Are in San Joaquin, California?

Looking up a phone number in San Joaquin, California? Enter any 10-digit phone number in the search box above to find the owner's name, address, and carrier information. San Joaquin is served by 1 area code and has 7 active phone prefixes.

1 Area Code
7 Phone Prefixes
43% Wireless
57% Landline

Area Codes Serving San Joaquin

Phone numbers in San Joaquin, California use the following area code: 559.

Top Phone Carriers in San Joaquin

The most common phone service providers in San Joaquin include:

  • New Cingular Wireless Pcs, Llc
  • Onvoy, Llc - Ca
  • Peerless Network Of California, Llc - Ca
  • Frontier California Inc.
  • Terra Nova Telecom Inc.

Data current as of March 2026

Nearby Cities in California

Other cities in California that share area codes with San Joaquin:

San Joaquin at a Glance

3,708 Population
25.3 Median Age
$43,011 Median Income
962 Housing Units
33% Homeownership

Demographics

  • White 5.1%
  • Black 4.5%
  • Hispanic 93.8%
  • Asian 0%
  • Other 0%

Financial Profile

$37,991 Avg. Income per Return
$33,008 Avg. Wages per Return
1,670 Tax Returns Filed
1 ZIP Codes

Frequently Asked Questions

What Area Codes Serve San Joaquin, California?

Phone numbers in San Joaquin, California use 1 area code: 559. These area codes are shared with other cities in the region. San Joaquin has 7 active phone prefixes assigned to local carriers. If you received a call from one of these area codes, enter the full 10-digit number into the search box above to find out who called. The area code alone tells you the general geographic region, but a full reverse phone lookup on 411FCC reveals the specific owner, carrier, and line type associated with the number.

How Do I Look Up a Phone Number in San Joaquin, California?

To look up any phone number in San Joaquin, enter the full 10-digit number into the search box at the top of this page and click Search. 411FCC returns available information about the number including the registered owner's name, location, phone carrier, and whether it is a wireless cell phone, landline, or VoIP line. The lookup covers all 1 area code serving San Joaquin and works for numbers from every carrier in the area. Results appear within seconds. 411FCC has maintained its phone number database since 2003.

What Types of Phone Numbers Are in San Joaquin?

San Joaquin, California has both wireless and landline phone numbers. Approximately 43% of phone prefixes in the area are classified as wireless (cell phone), with the remaining 57% being landline or VoIP. Major carriers serving the area include New Cingular Wireless Pcs, Llc, Onvoy, Llc - Ca, Peerless Network Of California, Llc - Ca. When you search a phone number on 411FCC, the results identify the line type and carrier, which helps distinguish personal cell phones from business landlines and identify VoIP numbers commonly used by automated calling systems.