Longmont, Colorado Phone Lookup
Find the owner of any phone number in Longmont, Colorado.
What Phone Numbers Are in Longmont, Colorado?
Looking up a phone number in Longmont, Colorado? Enter any 10-digit phone number in the search box above to find the owner's name, address, and carrier information. Longmont is served by 3 area codes and has 61 active phone prefixes.
Area Codes Serving Longmont
Phone numbers in Longmont, Colorado use the following area codes: 303, 720, 983.
Top Phone Carriers in Longmont
The most common phone service providers in Longmont include:
- Cellco Partnership Dba Verizon Wireless - Co
- Onvoy, Llc - Co
- Bandwidth.com Clec, Llc - Co
- T-mobile Usa, Inc.
- Qwest Corporation
Data current as of March 2026
Nearby Cities in Colorado
Other cities in Colorado that share area codes with Longmont:
Longmont at a Glance
Demographics
- White 72.2%
- Black 0.9%
- Hispanic 24%
- Asian 3.4%
- Other 0%
Financial Profile
Frequently Asked Questions
What Area Codes Serve Longmont, Colorado?
Phone numbers in Longmont, Colorado use 3 area codes: 303, 720, 983. These area codes are shared with other cities in the region. Longmont has 61 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 Longmont, Colorado?
To look up any phone number in Longmont, 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 3 area codes serving Longmont 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 Longmont?
Longmont, Colorado has both wireless and landline phone numbers. Approximately 39% of phone prefixes in the area are classified as wireless (cell phone), with the remaining 61% being landline or VoIP. Major carriers serving the area include Cellco Partnership Dba Verizon Wireless - Co, Onvoy, Llc - Co, Bandwidth.com Clec, Llc - Co. 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.