Area code 840: San Bernardino, California
Area code 840 is a California code serving San Bernardino, Pomona and Ontario, on Pacific Time. It overlays 909, so numbers in the same area may start with any of them. From abroad, dial +1 840 and the 7-digit number.
Updated
At a glance
- State
- California
- Places served
- San Bernardino, Pomona, Ontario
- Time zone
- Pacific TimeUTC−8, UTC−7 in summer
- Overlay codes
- 909Same area, assigned when numbers ran short.
- Country
- United States (+1)
- Number format
- (840) 555-0123+1 840 555 0123 in international format
How to call a 840 number
All +1 numbers are 10 digits: the 3-digit area code and a 7-digit local number.
| Calling from | Dial |
|---|---|
| Inside the US or Canada | 1 840 555 0123 |
| The UK and most of Europe | 00 1 840 555 0123 |
| Australia | 0011 1 840 555 0123 |
| Any mobile | +1 840 555 0123 |
555-0123 is a placeholder; use the real 7-digit number.
Get a (840) number without living there
A callmins US number costs $2.00/month, no setup fee. It rings in your browser or the callmins app anywhere in the world, receives texts, and needs no ID or local address. When you buy, search by area code to look for a 840 number.
Availability changes daily
Popular codes sell out. If there's no 840 number free, try the overlay code 909 or another California code below. US numbers don't receive WhatsApp codes; use a UK number for that.
Other California area codes
- 209Stockton
- 213Los Angeles
- 279Sacramento
- 310Santa Monica
- 323Los Angeles
- 341Oakland
- 350Stockton
- 357Fresno
- 369Santa Rosa
- 408San Jose
- 415San Francisco
- 424Santa Monica
- 442Oceanside
- 510Oakland
- 530Redding
- 559Fresno
- 562Long Beach
- 619San Diego
- 626Pasadena
- 628San Francisco
- 650Palo Alto
- 657Anaheim
- 661Bakersfield
- 669San Jose
- 707Santa Rosa
- 714Anaheim
- 738Los Angeles
- 747Burbank
- 760Oceanside
- 805Santa Barbara
- 818Burbank
- 820Santa Barbara
- 831Salinas
- 837Redding
- 858San Diego
- 909San Bernardino
- 916Sacramento
- 925Concord
- 949Irvine
- 951Riverside
Questions people ask
Where is area code 840?
Area code 840 is in California, the United States. It serves San Bernardino, Pomona and Ontario, and shares the same area with 909 (overlay codes).
What time zone is area code 840?
Area code 840 is on Pacific Time (UTC−8, UTC−7 in summer). Where an area straddles a time-zone line, this is the time most of its callers keep.
How do I call a 840 number from abroad?
Dial your exit code, then 1, then 840 and the 7-digit number: 00 1 840 from the UK and most of Europe, or +1 840 from any mobile. Inside the US and Canada, dial 1 840 and the number.
Is a call from area code 840 a scam?
840 is an ordinary geographic area code, not a premium-rate or toll-free one. But caller ID can be faked, so a familiar-looking local code proves nothing about who is calling. Don't share codes or payment details with an unexpected caller.
Can I get a 840 phone number?
You can search callmins for a 840 number when you buy a US number ($2.00/month, no setup fee). Which area codes have numbers free changes daily; if 840 has none, pick a nearby or overlay code such as 909.
Related
A 840 number, in your browser.
$2.00/month, no setup fee. Calls and texts on your laptop or phone, from anywhere.
Area code details are compiled from North American Numbering Plan assignments and list the best-known places served; check NANPA for the full boundary.