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Area Code Detail

Area Code 738

California (nearly the entire city of Los Angeles outside of the San Fernando Valley and smaller cities and unincorporated areas of Los Angeles County immediately to the south or east) · In service since November 1, 2024

CA
Reports, 30 Days 11

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

Reports, 180 Days 95

Broader complaint volume used to prioritize indexable pages.

Active Prefixes 29

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

Carriers / Assignees 7

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

Cities / Rate Centers 10

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
Examples: 206-739-5800, 206, 206-739, 48369
Overview

What this area code covers

California (nearly the entire city of Los Angeles outside of the San Fernando Valley and smaller cities and unincorporated areas of Los Angeles County immediately to the south or east)

to be overlaid on 213/323

Common cities and rate centers

Los Angeles:da 01 Los Angeles:da 03 Los Angeles:da 04 Los Angeles:da 05 Los Angeles:da 06 Los Angeles:da 07 Los Angeles:da 10 Los Angeles:da 12 Los Angeles:da 13 Montebello

Top carriers and assignees

  • ONVOY, LLC - CA · 103 routing rows
  • WIDE VOICE, LLC - CA · 27 routing rows
  • T-MOBILE USA, INC. · 15 routing rows
  • EXIANT COMMUNICATIONS LLC · 13 routing rows
  • CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA · 3 routing rows
  • TERRA NOVA TELECOM INC. · 2 routing rows
  • BANDWIDTH.COM CLEC, LLC - CA · 2 routing rows
NPA-NXX

Prefix directory inside area code 738

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
738-200-XXXX LSAN DA 10 Los Angeles:da 10 CA
738-201-XXXX LSAN DA 07 Los Angeles:da 07 CA
738-202-XXXX LSAN DA 04 Los Angeles:da 04 CA
738-203-XXXX LSAN DA 13 Los Angeles:da 13 CA
738-211-XXXX CA
738-222-XXXX LSAN DA 06 Los Angeles:da 06 CA
738-311-XXXX CA
738-333-XXXX MONTEBELLO Montebello CA
738-411-XXXX CA
738-444-XXXX LSAN DA 12 Los Angeles:da 12 CA
738-511-XXXX CA
738-529-XXXX LSAN DA 03 Los Angeles:da 03 CA
738-555-XXXX CA
738-611-XXXX CA
738-666-XXXX MONTEBELLO Montebello CA
738-700-XXXX CA
738-711-XXXX CA
738-738-XXXX LSAN DA 06 Los Angeles:da 06 CA
738-777-XXXX LSAN DA 01 Los Angeles:da 01 CA
738-800-XXXX LSAN DA 04 Los Angeles:da 04 CA
738-811-XXXX CA
738-888-XXXX LSAN DA 06 Los Angeles:da 06 CA
738-900-XXXX LSAN DA 05 Los Angeles:da 05 CA
738-911-XXXX CA
738-950-XXXX CA
738-958-XXXX CA
738-959-XXXX CA
738-976-XXXX CA
738-999-XXXX LSAN DA 04 Los Angeles:da 04 CA
Recent Signals

Latest complaint activity tied to 738

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

FTC report from Spencer, TENNESSEE

May 21, 2026 at 12:33 PM

This report was logged as a live voice. Violation date: May 21, 2026 at 10:41 AM.

FTC report from NEW YORK

May 15, 2026 at 3:41 PM

738-227-8818 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: May 15, 2026 at 12:00 AM.

FTC report from CALIFORNIA

May 14, 2026 at 6:40 PM

738-200-4382 was logged as a robocall. Category: Dropped call or no message. Violation date: May 14, 2026 at 11:13 AM.

FTC report from Long Beach, CALIFORNIA

May 13, 2026 at 3:46 AM

738-200-4374 was logged as a live voice. Category: Dropped call or no message. Violation date: May 12, 2026 at 11:36 AM.

FTC report from Rocky Mount, VIRGINIA

May 11, 2026 at 7:32 PM

This report was logged as a live voice. Violation date: May 11, 2026 at 11:58 AM.

FTC report from Tyrone, PENNSYLVANIA

May 11, 2026 at 9:57 AM

738-200-3299 was logged as a live voice. Category: Dropped call or no message. Violation date: May 9, 2026 at 12:39 PM.

FTC report from CALIFORNIA

May 8, 2026 at 4:30 AM

738-201-2726 was logged as a live voice. Violation date: May 7, 2026 at 9:12 AM.

FTC report from Burbank, CALIFORNIA

May 1, 2026 at 9:34 PM

738-200-3347 was logged as a live voice. Category: Dropped call or no message. Violation date: May 1, 2026 at 1:55 PM.

FTC report from Long Beach, CALIFORNIA

April 29, 2026 at 2:03 AM

738-200-4274 was logged as a live voice. Category: Dropped call or no message. Violation date: April 28, 2026 at 9:13 AM.

FTC report from Huntington Beach, CALIFORNIA

April 28, 2026 at 11:12 PM

738-200-4338 was logged as a robocall. Violation date: April 24, 2026 at 12:03 PM.

FTC report from CALIFORNIA

April 28, 2026 at 6:23 PM

738-200-4827 was logged as a robocall. Category: Dropped call or no message. Violation date: April 28, 2026 at 2:24 PM.

FTC report from Culver City, CALIFORNIA

April 24, 2026 at 8:16 PM

738-200-4379 was logged as a robocall. Violation date: April 24, 2026 at 1:00 PM.

FTC report from Huntington Beach, CALIFORNIA

April 23, 2026 at 6:01 PM

738-200-4379 was logged as a robocall. Violation date: April 22, 2026 at 12:35 PM.

FTC report from Select..., CALIFORNIA

April 23, 2026 at 2:32 PM

738-200-3448 was logged as a robocall. Category: Dropped call or no message. Violation date: April 23, 2026 at 8:49 AM.

FTC report from CALIFORNIA

April 21, 2026 at 5:51 PM

738-200-3768 was logged as a live voice. Category: Energy, solar, & utilities. Violation date: April 21, 2026 at 2:48 PM.

FTC report from Miami, FLORIDA

April 16, 2026 at 4:27 PM

738-928-2925 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: April 16, 2026 at 2:58 PM.

FTC report from Huntersville, CALIFORNIA

April 16, 2026 at 11:07 AM

738-200-1161 was logged as a live voice. Violation date: April 7, 2026 at 5:06 AM.

FTC report from CALIFORNIA

April 15, 2026 at 8:29 PM

738-200-3469 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: April 15, 2026 at 8:35 AM.

FTC report from CALIFORNIA

April 13, 2026 at 3:50 PM

738-200-4279 was logged as a robocall. Category: Dropped call or no message. Violation date: April 13, 2026 at 12:44 PM.

FTC report from Huntington Beach, CALIFORNIA

April 9, 2026 at 11:46 PM

738-200-4302 was logged as a robocall. Violation date: April 8, 2026 at 2:16 PM.

FTC report from Long Beach, CALIFORNIA

April 7, 2026 at 9:54 PM

738-200-4302 was logged as a live voice. Category: Dropped call or no message. Violation date: April 7, 2026 at 3:56 PM.

FTC report from Fullerton, CALIFORNIA

April 7, 2026 at 6:15 PM

738-200-4352 was logged as a live voice. Category: Dropped call or no message. Violation date: April 7, 2026 at 12:59 PM.

FTC report from Fullerton, CALIFORNIA

March 26, 2026 at 7:40 PM

738-333-0063 was logged as a live voice. Category: Dropped call or no message. Violation date: March 26, 2026 at 4:27 PM.

FTC report from Redondo Beach, CALIFORNIA

March 26, 2026 at 4:10 PM

738-333-0032 was logged as a live voice. Category: Dropped call or no message. Violation date: March 24, 2026 at 3:30 PM.

FTC report from IDAHO

March 25, 2026 at 5:14 PM

This report was logged as a robocall. Violation date: March 24, 2026 at 2:38 PM.

FTC report from Culver City, CALIFORNIA

March 24, 2026 at 12:07 PM

738-333-0051 was logged as a live voice. Category: Dropped call or no message. Violation date: March 24, 2026 at 9:01 AM.

FTC report from San Dimas, CALIFORNIA

March 23, 2026 at 7:45 PM

738-333-0060 was logged as a robocall. Violation date: March 20, 2026 at 12:06 PM.

FTC report from CALIFORNIA

March 23, 2026 at 4:13 PM

738-201-1521 was logged as a live voice. Violation date: March 23, 2026 at 1:11 PM.

FTC report from Culver City, CALIFORNIA

March 19, 2026 at 11:36 PM

738-333-0026 was logged as a live voice. Category: Dropped call or no message. Violation date: March 19, 2026 at 1:42 PM.

FTC report from Fullerton, CALIFORNIA

March 19, 2026 at 5:11 PM

738-333-0057 was logged as a live voice. Category: Dropped call or no message. Violation date: March 19, 2026 at 9:36 AM.

FTC report from CALIFORNIA

March 18, 2026 at 6:04 PM

738-200-3608 was logged as a live voice. Violation date: March 18, 2026 at 9:43 AM.

FTC report from CALIFORNIA

March 18, 2026 at 2:53 AM

738-200-1765 was logged as a robocall. Violation date: March 16, 2026 at 4:14 PM.

FTC report from CALIFORNIA

March 17, 2026 at 9:05 PM

738-333-0027 was logged as a robocall. Category: Dropped call or no message. Violation date: March 17, 2026 at 9:09 AM.

FTC report from Redondo Beach, CALIFORNIA

March 16, 2026 at 7:19 PM

This report was logged as a live voice. Category: Dropped call or no message. Violation date: March 16, 2026 at 4:18 PM.

FTC report from Palos Verdes Peninsula, CALIFORNIA

March 16, 2026 at 2:11 PM

738-333-0034 was logged as a robocall. Category: Dropped call or no message. Violation date: March 16, 2026 at 10:16 AM.

FTC report from Cypress, CALIFORNIA

March 12, 2026 at 10:04 PM

738-333-0013 was logged as a robocall. Violation date: March 12, 2026 at 10:49 AM.

FTC report from Fullerton, CALIFORNIA

March 11, 2026 at 9:15 PM

738-333-0046 was logged as a live voice. Category: Dropped call or no message. Violation date: March 11, 2026 at 1:27 PM.

FTC report from CALIFORNIA

March 11, 2026 at 5:18 PM

738-333-0048 was logged as a unwanted call. Category: No Subject Provided. Violation date: March 11, 2026 at 12:00 AM.

FTC report from Torrance, CALIFORNIA

March 11, 2026 at 12:21 PM

738-333-0050 was logged as a robocall. Category: No Subject Provided. Violation date: March 11, 2026 at 8:56 AM.

FTC report from CALIFORNIA

March 10, 2026 at 9:56 AM

738-333-0057 was logged as a robocall. Category: Dropped call or no message. Violation date: March 9, 2026 at 10:24 AM.