Area code 840 is in California, USA , spanning 3 counties and serving 45 cities, including San Bernardino, Rancho Cucamonga or Pomona; it currently uses 98 prefixes, assigned from 840-200-XXXX through 840-999-XXXX.
In service since February 23, 2021, area code 840 is an overlay Numbering Plan Area, part of overlay complex 909/840.
The current local time is .
NPANXX | Area Served1 | Date2 |
---|---|---|
840-200 | Chino | 1/4/2021 |
840-201 | Fontana | 3/11/2021 |
840-202 | Pomona | 7/29/2021 |
840-203 | San Bernardino | 7/29/2021 |
840-204 | San Bernardino | 7/29/2021 |
840-205 | Claremont | 10/27/2021 |
840-206 | Chino | 8/10/2021 |
840-207 | Arrowhead | 10/28/2021 |
840-208 | Claremont | 2/22/2022 |
840-209 | Arrowhead | 8/31/2021 |
840-210 | Fontana | 12/14/2021 |
840-212 | Chino | 11/15/2021 |
840-213 | Redlands | 8/12/2022 |
840-214 | Marshall | 8/12/2022 |
840-215 | Highland | 2/28/2022 |
840-216 | Arrowhead | 3/1/2022 |
840-217 | Fontana | 9/2/2022 |
840-218 | Chino | 10/10/2022 |
840-219 | Calimesa | 9/13/2021 |
840-220 | Rialto | 9/13/2022 |
840-221 | San Bernardino | 10/21/2022 |
840-222 | San Bernardino | 12/24/2020 |
840-223 | Calimesa | 10/24/2022 |
840-224 | San Bernardino | 12/6/2022 |
840-225 | Pomona | 03/10/2023 |
840-226 | Pomona | 04/07/2023 |
840-227 | San Bernardino | 04/13/2023 |
840-228 | Colton | 04/17/2023 |
840-229 | Claremont | 04/18/2023 |
840-230 | Pomona | 05/30/2023 |
840-231 | Pomona | 05/31/2023 |
840-232 | Fontana | 06/09/2023 |
840-233 | Arrowhead | 07/13/2023 |
840-234 | Arrowhead | 4/18/2021 |
840-235 | Colton | 08/11/2023 |
840-236 | Claremont | 09/19/2023 |
840-237 | Ontario | 09/19/2023 |
840-238 | Pomona | 09/26/2023 |
840-239 | Fontana | 10/02/2023 |
840-240 | Diamond Bar | 11/18/2022 |
840-241 | Rialto | 10/02/2023 |
840-242 | Upland | 10/02/2023 |
840-243 | Pomona | 10/10/2023 |
840-244 | Diamond Bar | 10/16/2023 |
840-245 | Redlands | 10/18/2023 |
840-246 | Etiwanda | 11/01/2023 |
840-247 | Highland | 11/08/2023 |
840-248 | Fontana | 12/05/2023 |
840-249 | Marshall | 12/07/2023 |
840-250 | Arrowhead | 01/11/2024 |
840-251 | Redlands | 01/19/2024 |
840-252 | Mentone | 2/28/2022 |
840-253 | Calimesa | 03/06/2024 |
840-254 | Rialto | 03/18/2024 |
840-255 | San Bernardino | 03/18/2024 |
840-256 | Upland | 03/28/2024 |
840-257 | Colton | 03/28/2024 |
840-258 | Highland | 04/15/2024 |
840-259 | Pomona | 05/09/2024 |
840-260 | Pomona | 05/22/2024 |
840-261 | Fontana | 05/29/2024 |
840-262 | Arrowhead | 07/30/2024 |
840-263 | Fontana | 09/09/2024 |
840-264 | Pomona | 09/20/2024 |
840-265 | Arrowhead | 10/09/2024 |
840-266 | San Bernardino | 10/09/2024 |
840-267 | Pomona | 10/21/2024 |
840-268 | Marshall | 11/12/2024 |
840-284 | Chino | 10/16/2023 |
840-300 | Redlands | 7/15/2021 |
840-333 | Pomona | 12/24/2020 |
840-336 | Colton | 2/18/2022 |
840-345 | Pomona | 7/7/2021 |
840-356 | Arrowhead | 2/18/2022 |
840-400 | Ontario | 1/4/2021 |
840-444 | Arrowhead | 12/24/2020 |
840-465 | Chino | 7/7/2021 |
840-466 | Upland | 2/18/2022 |
840-500 | Bigbear City | 1/27/2022 |
840-587 | San Bernardino | 2/23/2022 |
840-588 | Diamond Bar | 10/28/2021 |
840-600 | Colton | 1/4/2021 |
840-666 | Fontana | 12/24/2020 |
840-677 | Etiwanda | 10/28/2021 |
840-688 | Crestline | 10/25/2021 |
840-699 | Ontario | 7/16/2021 |
840-777 | Pomona | 12/23/2020 |
840-788 | Fontana | 7/16/2021 |
840-799 | Rialto | 7/15/2021 |
840-800 | Upland | 12/24/2020 |
840-804 | Claremont | 01/13/2023 |
840-837 | Pomona | 1/10/2022 |
840-877 | Marshall | 7/15/2021 |
840-888 | Redlands | 12/23/2020 |
840-899 | Highland | 7/15/2021 |
840-900 | Rialto | 12/24/2020 |
840-977 | Claremont | 7/15/2021 |
840-999 | Upland | 12/23/2020 |
City1 | County | Time Zone2 |
---|---|---|
Angelus Oaks | San Bernardino | P |
Big Bear City | San Bernardino | P |
Big Bear Lake | San Bernardino | P |
Bloomington | San Bernardino | P |
Blue Jay | San Bernardino | P |
Bryn Mawr | San Bernardino | P |
Calimesa | Riverside | P |
Cedar Glen | San Bernardino | P |
Cedarpines Park | San Bernardino | P |
Chino | San Bernardino | P |
Chino Hills | San Bernardino | P |
Claremont | Los Angeles | P |
Colton | San Bernardino | P |
Crest Park | San Bernardino | P |
Crestline | San Bernardino | P |
Diamond Bar | Los Angeles | P |
Fawnskin | San Bernardino | P |
Fontana | San Bernardino | P |
Forest Falls | San Bernardino | P |
Green Valley Lake | San Bernardino | P |
Guasti | San Bernardino | P |
Highland | San Bernardino | P |
La Verne | Los Angeles | P |
Lake Arrowhead | San Bernardino | P |
Loma Linda | San Bernardino | P |
Lytle Creek | San Bernardino | P |
Mentone | San Bernardino | P |
Montclair | San Bernardino | P |
Mount Baldy | Los Angeles | P |
Ontario | San Bernardino | P |
Patton | San Bernardino | P |
Pomona | Los Angeles | P |
Rancho Cucamonga | San Bernardino | P |
Redlands | San Bernardino | P |
Rialto | San Bernardino | P |
Rimforest | San Bernardino | P |
Running Springs | San Bernardino | P |
San Bernardino | San Bernardino | P |
San Dimas | Los Angeles | P |
Skyforest | San Bernardino | P |
Sugarloaf | San Bernardino | P |
Twin Peaks | San Bernardino | P |
Upland | San Bernardino | P |
Walnut | Los Angeles | P |
Yucaipa | San Bernardino | P |