Union City, California Phone Lookup
Find the owner of any phone number in Union City, California.
What Phone Numbers Are in Union City, California?
Looking up a phone number in Union City, California? Enter any 10-digit phone number in the search box above to find the owner's name, address, and carrier information. Union City is served by 2 area codes and has 33 active phone prefixes.
Area Codes Serving Union City
Phone numbers in Union City, California use the following area codes: 341, 510.
Top Phone Carriers in Union City
The most common phone service providers in Union City include:
- New Cingular Wireless Pcs, Llc
- Onvoy, Llc - Ca
- Pacific Bell
- Bandwidth.com Clec, Llc - Ca
- Metropcs, Inc.
Data current as of March 2026
Nearby Cities in California
Other cities in California that share area codes with Union City:
Union City at a Glance
Demographics
- White 16.1%
- Black 4.5%
- Hispanic 20.2%
- Asian 57.5%
- Other 1.7%
Financial Profile
Frequently Asked Questions
What Area Codes Serve Union City, California?
Phone numbers in Union City, California use 2 area codes: 341, 510. These area codes are shared with other cities in the region. Union City has 33 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 Union City, California?
To look up any phone number in Union City, 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 2 area codes serving Union City 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 Union City?
Union City, California has both wireless and landline phone numbers. Approximately 29% of phone prefixes in the area are classified as wireless (cell phone), with the remaining 71% being landline or VoIP. Major carriers serving the area include New Cingular Wireless Pcs, Llc, Onvoy, Llc - Ca, Pacific Bell. 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.