Search results
May 1, 2024 · Important 840 Area Code Information. Area Code 840 is located in California. It covers 19 cities, including San Bernardino, Fontana, Ontario, Rancho Cucamonga, and Pomona. It also covers 3 counties, including San Bernardino County, Los Angeles County, Riverside County. A full list of covered cities and counties is below including its prefix and ...
- Upland, CA
There are 2 area codes serving this area including909 and...
- Fontana, CA
There are 2 area codes serving this area including909 and...
- Ontario, CA
5 ZIP Codes in Ontario, CA of San Bernardino County, Area...
- Lake Arrowhead, CA
ZIP Code: Lake Arrowhead, CA has only 1 PO Box ZIP assigned...
- Chino, CA
91708 & 91710 are the only ZIP Codes for Chino, CA. Enter an...
- Covina, CA
There are 4 area codes serving this area including626, 909,...
- Upland, CA
6 days ago · Area code 840 is assigned for use in California since Feb 23, 2021. This area code originated from the 909 area code previously by means of area code split or overlay. View all phone prefixes used in area code 840 or other area codes in California .
1 day ago · Country calling codes, country dial-in codes, international subscriber dialing (ISD) codes, or most commonly, telephone country codes are telephone number prefixes for reaching telephone subscribers in foreign countries or areas via international telecommunication networks.
1 day ago · ISO 3166-1. ISO 3166-1 ( Codes for the representation of names of countries and their subdivisions – Part 1: Country codes) is a standard defining codes for the names of countries, dependent territories, and special areas of geographical interest. It is the first part of the ISO 3166 standard published by the International Organization for ...
May 19, 2024 · By Ernest Short / Last Updated on: May 19, 2024. How do American area codes work? American area codes are three-digit numbers that are used to identify specific geographic regions within the United States. The area code, the first three digits of a 10-digit number, routes the call to a geographic area.
May 20, 2024 · 840: FLOW: Cable & Wireless: Operational: GSM 850 / UMTS 850 / UMTS 1900 / LTE 700
May 14, 2024 · Area code 840 is located in and includes . View the 840 area code map, major cities, location, timezone and more on TeraCodes.com.
