Area Code Detail

Area Code 840

California (southwestern San Bernardino County and a small portion of Los Angeles and Riverside counties, including Fontana, Pomona, Chino Hills, Claremont, Chino, Ontario, and Redlands) · In service since February 23, 2021

CA
Reports, 30 Days 173

Recent FCC and FTC complaint records tied to this area code.

Reports, 180 Days 643

Broader complaint volume used to prioritize indexable pages.

Active Prefixes 140

Distinct NPA-NXX prefixes surfaced from routing and assignment data.

Carriers / Assignees 21

Named carriers, assignees, or code holders found in routing data.

Cities / Rate Centers 19

Distinct cities or rate centers attached to this area code.

States / Territories 1

Coverage footprint visible from NANPA, pooled block, and Canada routing data.

North American Phone Intelligence

Search a phone number, area code, exchange, or short code

Paste raw digits, a formatted phone number, an area code, an NPA-NXX block, or a short code. US and Canada phone lookups route automatically, and international iMessage checks are available separately.

Phone LookupTop ComplaintsArea CodesNPA-NXXiMessage
Overview

What this area code covers

California (southwestern San Bernardino County and a small portion of Los Angeles and Riverside counties, including Fontana, Pomona, Chino Hills, Claremont, Chino, Ontario, and Redlands)

overlaid on 909

Common cities and rate centers

Arrowhead Big Bear City Calimesa Chino Claremont Colton Crestline Diamond Bar Etiwanda Fontana Highland Marshall Mentone Ontario Pomona Redlands Rialto San Bernardino

Top carriers and assignees

  • ONVOY, LLC - CA · 312 routing rows
  • T-MOBILE USA, INC. · 293 routing rows
  • NEW CINGULAR WIRELESS PCS, LLC · 282 routing rows
  • CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA · 198 routing rows
  • COMMIO, LLC · 65 routing rows
  • FRACTEL, LLC · 63 routing rows
  • ONVOY SPECTRUM, LLC · 48 routing rows
  • BANDWIDTH.COM CLEC, LLC - CA · 46 routing rows
  • PEERLESS NETWORK OF CALIFORNIA, LLC - CA · 22 routing rows
  • TELNYX LLC · 19 routing rows
  • MULTIPLE OCN LISTING · 9 routing rows
  • BOOST SUBSCRIBERCO L.L.C. · 9 routing rows
NPA-NXX

Prefix directory inside area code 840

Each prefix below is collapsed to one primary locality row so you can scan the area code by prefix without the duplicated block-level assignment rows.

Prefix Primary Rate Center Primary City State
840-200-XXXX CHINO Chino CA
840-201-XXXX FONTANA Fontana CA
840-202-XXXX POMONA Pomona CA
840-203-XXXX S BERNDINO San Bernardino CA
840-204-XXXX S BERNDINO San Bernardino CA
840-205-XXXX CLAREMONT Claremont CA
840-206-XXXX CHINO Chino CA
840-207-XXXX ARROWHEAD Arrowhead CA
840-208-XXXX CLAREMONT Claremont CA
840-209-XXXX ARROWHEAD Arrowhead CA
840-210-XXXX FONTANA Fontana CA
840-211-XXXX CA
840-212-XXXX CHINO Chino CA
840-213-XXXX REDLANDS Redlands CA
840-214-XXXX MARSHALL Marshall CA
840-215-XXXX HIGHLAND Highland CA
840-216-XXXX ARROWHEAD Arrowhead CA
840-217-XXXX FONTANA Fontana CA
840-218-XXXX CHINO Chino CA
840-219-XXXX CALIMESA Calimesa CA
840-220-XXXX RIALTO Rialto CA
840-221-XXXX S BERNDINO San Bernardino CA
840-222-XXXX S BERNDINO San Bernardino CA
840-223-XXXX CALIMESA Calimesa CA
840-224-XXXX S BERNDINO San Bernardino CA
840-225-XXXX POMONA Pomona CA
840-226-XXXX POMONA Pomona CA
840-227-XXXX S BERNDINO San Bernardino CA
840-228-XXXX COLTON Colton CA
840-229-XXXX CLAREMONT Claremont CA
840-230-XXXX POMONA Pomona CA
840-231-XXXX POMONA Pomona CA
840-232-XXXX FONTANA Fontana CA
840-233-XXXX ARROWHEAD Arrowhead CA
840-234-XXXX ARROWHEAD Arrowhead CA
840-235-XXXX COLTON Colton CA
840-236-XXXX CLAREMONT Claremont CA
840-237-XXXX ONTARIO Ontario CA
840-238-XXXX POMONA Pomona CA
840-239-XXXX FONTANA Fontana CA
840-240-XXXX DIAMONDBAR Diamond Bar CA
840-241-XXXX RIALTO Rialto CA
840-242-XXXX UPLAND Upland CA
840-243-XXXX POMONA Pomona CA
840-244-XXXX DIAMONDBAR Diamond Bar CA
840-245-XXXX REDLANDS Redlands CA
840-246-XXXX ETIWANDA Etiwanda CA
840-247-XXXX HIGHLAND Highland CA
840-248-XXXX FONTANA Fontana CA
840-249-XXXX MARSHALL Marshall CA
840-250-XXXX ARROWHEAD Arrowhead CA
840-251-XXXX REDLANDS Redlands CA
840-252-XXXX MENTONE Mentone CA
840-253-XXXX CALIMESA Calimesa CA
840-254-XXXX RIALTO Rialto CA
840-255-XXXX S BERNDINO San Bernardino CA
840-256-XXXX UPLAND Upland CA
840-257-XXXX COLTON Colton CA
840-258-XXXX HIGHLAND Highland CA
840-259-XXXX POMONA Pomona CA
840-260-XXXX POMONA Pomona CA
840-261-XXXX FONTANA Fontana CA
840-262-XXXX ARROWHEAD Arrowhead CA
840-263-XXXX FONTANA Fontana CA
840-264-XXXX POMONA Pomona CA
840-265-XXXX ARROWHEAD Arrowhead CA
840-266-XXXX S BERNDINO San Bernardino CA
840-267-XXXX POMONA Pomona CA
840-268-XXXX MARSHALL Marshall CA
840-269-XXXX ONTARIO Ontario CA
840-270-XXXX ONTARIO Ontario CA
840-271-XXXX FONTANA Fontana CA
840-272-XXXX CHINO Chino CA
840-273-XXXX MENTONE Mentone CA
840-274-XXXX ARROWHEAD Arrowhead CA
840-275-XXXX POMONA Pomona CA
840-276-XXXX UPLAND Upland CA
840-277-XXXX CLAREMONT Claremont CA
840-278-XXXX ARROWHEAD Arrowhead CA
840-279-XXXX ONTARIO Ontario CA
840-280-XXXX S BERNDINO San Bernardino CA
840-281-XXXX COLTON Colton CA
840-282-XXXX CHINO Chino CA
840-283-XXXX ARROWHEAD Arrowhead CA
840-284-XXXX CHINO Chino CA
840-285-XXXX FONTANA Fontana CA
840-286-XXXX ARROWHEAD Arrowhead CA
840-287-XXXX MARSHALL Marshall CA
840-288-XXXX S BERNDINO San Bernardino CA
840-289-XXXX DIAMONDBAR Diamond Bar CA
840-290-XXXX UPLAND Upland CA
840-291-XXXX S BERNDINO San Bernardino CA
840-292-XXXX S BERNDINO San Bernardino CA
840-293-XXXX ETIWANDA Etiwanda CA
840-300-XXXX REDLANDS Redlands CA
840-311-XXXX CA
840-333-XXXX POMONA Pomona CA
840-336-XXXX COLTON Colton CA
840-345-XXXX POMONA Pomona CA
840-356-XXXX ARROWHEAD Arrowhead CA
840-400-XXXX ONTARIO Ontario CA
840-411-XXXX CA
840-444-XXXX ARROWHEAD Arrowhead CA
840-465-XXXX CHINO Chino CA
840-466-XXXX UPLAND Upland CA
840-500-XXXX BIGBEAR CY Big Bear City CA
840-511-XXXX CA
840-555-XXXX DIR ASST CA
840-587-XXXX S BERNDINO San Bernardino CA
840-588-XXXX DIAMONDBAR Diamond Bar CA
840-600-XXXX COLTON Colton CA
840-611-XXXX CA
840-666-XXXX FONTANA Fontana CA
840-677-XXXX ETIWANDA Etiwanda CA
840-688-XXXX CRESTLINE Crestline CA
840-699-XXXX ONTARIO Ontario CA
840-700-XXXX CA
840-711-XXXX CA
840-777-XXXX POMONA Pomona CA
840-788-XXXX FONTANA Fontana CA
840-799-XXXX RIALTO Rialto CA
840-800-XXXX UPLAND Upland CA
840-804-XXXX CLAREMONT Claremont CA
840-811-XXXX CA
840-837-XXXX POMONA Pomona CA
840-840-XXXX ONTARIO Ontario CA
840-877-XXXX MARSHALL Marshall CA
840-888-XXXX REDLANDS Redlands CA
840-899-XXXX HIGHLAND Highland CA
840-900-XXXX RIALTO Rialto CA
840-911-XXXX CA
840-950-XXXX CA
840-958-XXXX CA
840-959-XXXX CA
840-976-XXXX CA
840-977-XXXX CLAREMONT Claremont CA
840-996-XXXX S BERNDINO San Bernardino CA
840-997-XXXX CLAREMONT Claremont CA
840-998-XXXX HIGHLAND Highland CA
840-999-XXXX UPLAND Upland CA
Recent Signals

Latest complaint activity tied to 840

Complaint pages are the strongest indexing opportunity for this site right now, especially for exact phone numbers and toll-free exchanges.

FTC report from NEW JERSEY

September 10, 2026 at 10:11 PM

840-263-7620 was logged as a live voice. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: September 8, 2026 at 7:47 PM.

FTC report from NEW JERSEY

September 10, 2026 at 10:09 PM

840-263-7620 was logged as a live voice. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: September 8, 2026 at 3:13 PM.

FTC report from NEW JERSEY

September 10, 2026 at 10:07 PM

840-263-7620 was logged as a live voice. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: September 8, 2026 at 12:05 PM.

FTC report from MASSACHUSETTS

September 10, 2026 at 7:53 PM

840-263-7620 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: September 8, 2026 at 7:58 PM.

FTC report from MASSACHUSETTS

September 10, 2026 at 7:51 PM

840-263-7620 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: September 8, 2026 at 3:21 PM.

FTC report from Rochester, NEW YORK

September 10, 2026 at 4:57 PM

840-263-7620 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: September 9, 2026 at 12:23 AM.

FTC report from UTAH

September 10, 2026 at 4:36 PM

840-263-7620 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: September 10, 2026 at 2:00 PM.

FTC report from Detroit, MICHIGAN

September 10, 2026 at 4:11 PM

840-667-8252 was logged as a live voice. Category: Calls pretending to be government, businesses, or family and friends. Violation date: September 7, 2026 at 2:25 AM.

FTC report from Knoxville, TENNESSEE

September 10, 2026 at 2:18 PM

840-263-7620 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: September 8, 2026 at 11:53 PM.

FTC report from Knoxville, TENNESSEE

September 10, 2026 at 2:15 PM

840-263-7620 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: September 8, 2026 at 8:32 PM.

FTC report from KENTUCKY

September 10, 2026 at 1:32 PM

840-263-7620 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: September 8, 2026 at 11:07 AM.

FTC report from KENTUCKY

September 10, 2026 at 1:31 PM

840-263-7620 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: September 8, 2026 at 4:25 PM.

FTC report from KENTUCKY

September 10, 2026 at 1:29 PM

840-263-7620 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: September 8, 2026 at 7:36 PM.

FTC report from WASHINGTON

September 9, 2026 at 11:23 PM

840-263-7620 was logged as a robocall. Category: Calls pretending to be government, businesses, or family and friends. Violation date: September 8, 2026 at 1:01 PM.

FTC report from NEW JERSEY

September 9, 2026 at 9:20 PM

840-263-7620 was logged as a live voice. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: September 8, 2026 at 12:00 PM.

FTC report from FLORIDA

September 9, 2026 at 5:53 PM

840-221-9215 was logged as a robocall. Violation date: September 1, 2026 at 12:31 PM.

FTC report from Lamy, NEW MEXICO

September 9, 2026 at 4:38 PM

840-263-7620 was logged as a live voice. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: September 8, 2026 at 12:00 PM.

FTC report from Malvern, PENNSYLVANIA

September 9, 2026 at 4:25 PM

840-210-0624 was logged as a robocall. Violation date: September 1, 2026 at 12:00 AM.

FTC report from Montgomery, ALABAMA

September 9, 2026 at 2:04 PM

840-688-2509 was logged as a live voice. Violation date: September 9, 2026 at 11:41 AM.

FTC report from TENNESSEE

September 9, 2026 at 1:21 PM

840-263-7620 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: September 8, 2026 at 8:58 PM.

FTC report from Woodside, NEW YORK

September 9, 2026 at 1:04 PM

840-263-7620 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: September 8, 2026 at 1:20 PM.

FTC report from Frederick, MARYLAND

September 9, 2026 at 12:01 PM

840-263-7620 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: September 8, 2026 at 6:16 PM.

FTC report from CALIFORNIA

September 9, 2026 at 12:01 PM

840-263-7620 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: September 8, 2026 at 6:47 AM.

FTC report from CALIFORNIA

September 9, 2026 at 11:59 AM

840-263-7620 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: September 8, 2026 at 10:57 AM.

FTC report from Frederick, MARYLAND

September 9, 2026 at 11:59 AM

840-263-7620 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: September 9, 2026 at 9:39 PM.

FTC report from CALIFORNIA

September 9, 2026 at 11:57 AM

840-263-7620 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: September 8, 2026 at 4:12 PM.

FTC report from Colorado Springs, COLORADO

September 9, 2026 at 11:34 AM

840-263-7620 was logged as a robocall. Violation date: September 8, 2026 at 4:28 PM.

FTC report from MICHIGAN

September 9, 2026 at 11:18 AM

840-263-7620 was logged as a live voice. Violation date: September 8, 2026 at 9:29 PM.

FTC report from Washington, ILLINOIS

September 9, 2026 at 10:54 AM

840-263-7620 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: September 8, 2026 at 12:00 PM.

FTC report from Washington, ILLINOIS

September 9, 2026 at 10:49 AM

840-263-7620 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: September 8, 2026 at 3:32 PM.

FTC report from NEW MEXICO

September 9, 2026 at 10:35 AM

840-263-7620 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: September 8, 2026 at 10:15 PM.

FTC report from Darien, ILLINOIS

September 9, 2026 at 10:05 AM

840-263-7620 was logged as a robocall. Violation date: September 8, 2026 at 8:25 PM.

FTC report from Darien, ILLINOIS

September 9, 2026 at 10:04 AM

840-263-7620 was logged as a robocall. Violation date: September 8, 2026 at 12:37 PM.

FTC report from South Yarmouth, GEORGIA

September 9, 2026 at 9:58 AM

840-263-7620 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: September 9, 2026 at 12:00 PM.

FTC report from Queen Creek, ARIZONA

September 9, 2026 at 8:22 AM

840-263-7620 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: September 8, 2026 at 9:28 PM.

FTC report from Queen Creek, ARIZONA

September 9, 2026 at 8:12 AM

840-263-7620 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: September 8, 2026 at 6:17 PM.

FTC report from Queen Creek, ARIZONA

September 9, 2026 at 8:10 AM

840-263-7620 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: September 8, 2026 at 2:47 PM.

FTC report from Queen Creek, ARIZONA

September 9, 2026 at 8:04 AM

840-263-7620 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: September 8, 2026 at 12:00 PM.

FTC report from Palm Beach Gardens, FLORIDA

September 9, 2026 at 7:42 AM

840-263-7620 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: September 8, 2026 at 8:51 PM.

FTC report from Palm Beach Gardens, FLORIDA

September 9, 2026 at 7:30 AM

840-263-7620 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: September 8, 2026 at 12:00 PM.