840 Area Code

Most looked-up 840 numbers

• 840-201-1772
• 840-218-2914
• 840-201-5019

Phone prefixes in 840

• 840-218
• 840-201

Carriers serving 840

• Onvoy, LLC - CA (2 numbers)
• Matrix Telecom, Llc. Sii Tnci (1 numbers)

Frequently asked questions

What prefixes are in area code 840?

Phone2.io tracks 2 phone prefixes in area code 840, with carrier and spam-report data on individual numbers.

More about area code 840

Area code 840 overview, history, and local numbers

Last updated: April 25, 2026