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 29

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

Reports, 180 Days 94

Broader complaint volume used to prioritize indexable pages.

Active Prefixes 44

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

Carriers / Assignees 12

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

Cities / Rate Centers 15

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.

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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 02 Los Angeles:da 03 Los Angeles:da 04 Los Angeles:da 05 Los Angeles:da 06 Los Angeles:da 07 Los Angeles:da 08 Los Angeles:da 09 Los Angeles:da 10 Los Angeles:da 11 Los Angeles:da 12 Los Angeles:da 13 Los Angeles:da 14 Montebello

Top carriers and assignees

  • ONVOY, LLC - CA · 219 routing rows
  • WIDE VOICE, LLC - CA · 26 routing rows
  • BANDWIDTH.COM CLEC, LLC - CA · 21 routing rows
  • NEW CINGULAR WIRELESS PCS, LLC · 21 routing rows
  • T-MOBILE USA, INC. · 11 routing rows
  • BOOST SUBSCRIBERCO L.L.C. · 11 routing rows
  • EXIANT COMMUNICATIONS LLC · 8 routing rows
  • CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA · 6 routing rows
  • TERRA NOVA TELECOM INC. · 2 routing rows
  • OPENTACT INC. · 2 routing rows
  • 8X8, INC. · 2 routing rows
  • TELEPORT COMMUNICATIONS AMERICA, LLC - CA · 1 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
738-204-XXXX LSAN DA 08 Los Angeles:da 08 CA
738-205-XXXX LSAN DA 10 Los Angeles:da 10 CA
738-206-XXXX LSAN DA 11 Los Angeles:da 11 CA
738-207-XXXX LSAN DA 14 Los Angeles:da 14 CA
738-208-XXXX LSAN DA 09 Los Angeles:da 09 CA
738-209-XXXX LSAN DA 13 Los Angeles:da 13 CA
738-210-XXXX LSAN DA 14 Los Angeles:da 14 CA
738-211-XXXX CA
738-212-XXXX LSAN DA 08 Los Angeles:da 08 CA
738-213-XXXX LSAN DA 06 Los Angeles:da 06 CA
738-222-XXXX LSAN DA 06 Los Angeles:da 06 CA
738-300-XXXX LSAN DA 06 Los Angeles:da 06 CA
738-311-XXXX CA
738-333-XXXX MONTEBELLO Montebello CA
738-338-XXXX LSAN DA 12 Los Angeles:da 12 CA
738-411-XXXX CA
738-444-XXXX LSAN DA 12 Los Angeles:da 12 CA
738-500-XXXX LSAN DA 09 Los Angeles:da 09 CA
738-511-XXXX CA
738-529-XXXX LSAN DA 03 Los Angeles:da 03 CA
738-555-XXXX CA
738-600-XXXX LSAN DA 02 Los Angeles:da 02 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
738-880-XXXX LSAN DA 01 Los Angeles:da 01 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
738-998-XXXX LSAN DA 02 Los Angeles:da 02 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 CALIFORNIA

November 1, 2026 at 12:24 PM

738-207-8713 was logged as a unwanted call. Violation date: October 24, 2026 at 12:00 AM.

FTC report from Satsuma, ALABAMA

October 30, 2026 at 6:14 PM

738-207-5814 was logged as a robocall. Violation date: October 20, 2026 at 12:25 PM.

FTC report from UTAH

October 30, 2026 at 5:07 PM

738-200-1012 was logged as a robocall. Violation date: October 30, 2026 at 8:54 AM.

FTC report from CALIFORNIA

October 30, 2026 at 12:56 PM

738-201-9916 was logged as a robocall. Violation date: October 30, 2026 at 12:00 AM.

FTC report from East Haven, CONNECTICUT

October 29, 2026 at 12:49 PM

738-200-4072 was logged as a robocall. Violation date: October 22, 2026 at 9:46 AM.

FTC report from TENNESSEE

October 28, 2026 at 3:24 PM

738-200-6662 was logged as a unwanted call. Category: No Subject Provided. Violation date: October 21, 2026 at 12:00 AM.

FTC report from OHIO

October 28, 2026 at 3:05 PM

738-204-8118 was logged as a live voice. Category: Dropped call or no message. Violation date: October 28, 2026 at 2:54 PM.

FTC report from Culver City, CALIFORNIA

October 26, 2026 at 8:29 PM

738-200-4370 was logged as a robocall. Violation date: October 26, 2026 at 1:24 PM.

FTC report from Redondo Beach, CALIFORNIA

October 22, 2026 at 7:49 PM

738-200-4263 was logged as a live voice. Category: Dropped call or no message. Violation date: October 22, 2026 at 3:19 PM.

FTC report from Torrance, CALIFORNIA

October 22, 2026 at 12:36 PM

738-200-1232 was logged as a robocall. Category: No Subject Provided. Violation date: October 21, 2026 at 12:38 PM.

FTC report from Culver City, CALIFORNIA

October 21, 2026 at 7:51 PM

738-200-4312 was logged as a robocall. Violation date: October 21, 2026 at 4:25 PM.

FTC report from CALIFORNIA

October 21, 2026 at 6:50 PM

738-333-6236 was logged as a robocall. Violation date: October 20, 2026 at 2:30 PM.

FTC report from Pomona, CALIFORNIA

October 19, 2026 at 3:08 PM

738-200-2161 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: October 19, 2026 at 10:17 AM.

FTC report from Pomona, CALIFORNIA

October 19, 2026 at 3:06 PM

738-200-2161 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: October 19, 2026 at 9:55 AM.

FTC report from Huntington Beach, CALIFORNIA

October 18, 2026 at 6:59 PM

738-200-4384 was logged as a robocall. Violation date: October 9, 2026 at 2:35 PM.

FTC report from Springhill, TENNESSEE

October 17, 2026 at 11:46 AM

738-333-6246 was logged as a robocall. Category: Calls pretending to be government, businesses, or family and friends. Violation date: October 16, 2026 at 12:00 PM.

FTC report from Fullerton, CALIFORNIA

October 14, 2026 at 6:04 PM

738-200-4353 was logged as a live voice. Category: Dropped call or no message. Violation date: October 14, 2026 at 11:10 AM.

FTC report from Tamaqua, PENNSYLVANIA

October 14, 2026 at 5:18 PM

738-300-0707 was logged as a robocall. Violation date: October 14, 2026 at 5:09 PM.

FTC report from Sacramento, CALIFORNIA

October 14, 2026 at 4:24 PM

738-200-6402 was logged as a robocall. Category: Dropped call or no message. Violation date: October 14, 2026 at 9:41 AM.

FTC report from CALIFORNIA

October 13, 2026 at 3:41 PM

738-777-0686 was logged as a robocall. Violation date: October 13, 2026 at 12:40 PM.

FTC report from Torrance, CALIFORNIA

October 13, 2026 at 11:31 AM

738-200-4327 was logged as a robocall. Category: No Subject Provided. Violation date: October 12, 2026 at 2:18 PM.

FTC report from Culver City, CALIFORNIA

October 12, 2026 at 8:21 PM

738-200-4320 was logged as a robocall. Violation date: October 12, 2026 at 11:35 AM.

FTC report from Redondo Beach, CALIFORNIA

October 9, 2026 at 8:28 PM

738-200-4371 was logged as a live voice. Category: Dropped call or no message. Violation date: October 7, 2026 at 12:27 PM.

FTC report from Alabaster, ALABAMA

October 9, 2026 at 7:09 PM

738-300-3483 was logged as a robocall. Category: Calls pretending to be government, businesses, or family and friends. Violation date: October 9, 2026 at 6:04 PM.

FTC report from Fullerton, CALIFORNIA

October 8, 2026 at 3:58 PM

738-333-6042 was logged as a live voice. Category: Dropped call or no message. Violation date: October 8, 2026 at 12:46 PM.

FTC report from Woodstock, ILLINOIS

October 7, 2026 at 4:42 PM

738-207-3167 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: October 7, 2026 at 3:35 PM.

FTC report from Torrance, CALIFORNIA

October 7, 2026 at 1:01 PM

738-200-4355 was logged as a robocall. Category: No Subject Provided. Violation date: October 7, 2026 at 9:16 AM.

FTC report from Pottstown, PENNSYLVANIA

October 6, 2026 at 5:34 PM

738-300-3271 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: October 6, 2026 at 5:31 PM.

FTC report from Mobile, ALABAMA

October 6, 2026 at 11:56 AM

738-207-5698 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: October 6, 2026 at 10:55 AM.

FTC report from Huntington Beach, CALIFORNIA

September 30, 2026 at 10:57 PM

738-200-4310 was logged as a robocall. Violation date: September 25, 2026 at 11:08 AM.

FTC report from San Dimas, CALIFORNIA

September 30, 2026 at 4:05 PM

738-200-4328 was logged as a robocall. Violation date: September 30, 2026 at 12:08 PM.

FTC report from Long Beach, CALIFORNIA

September 30, 2026 at 2:00 PM

738-200-4304 was logged as a live voice. Category: Dropped call or no message. Violation date: September 24, 2026 at 11:49 AM.

FTC report from Batavia, OHIO

September 30, 2026 at 7:32 AM

738-333-6653 was logged as a live voice. Category: Dropped call or no message. Violation date: September 29, 2026 at 6:28 PM.

FTC report from Culver City, CALIFORNIA

September 18, 2026 at 4:16 PM

738-208-4309 was logged as a robocall. Violation date: September 17, 2026 at 12:00 AM.

FTC report from CALIFORNIA

September 17, 2026 at 10:08 PM

738-200-4356 was logged as a robocall. Category: Dropped call or no message. Violation date: September 17, 2026 at 12:13 PM.

FTC report from Andersonville, OHIO

September 16, 2026 at 5:32 PM

738-333-4037 was logged as a robocall. Category: Medical & prescriptions. Violation date: September 16, 2026 at 12:27 PM.

FTC report from Milford, OHIO

September 10, 2026 at 10:38 AM

738-333-6792 was logged as a robocall. Violation date: September 10, 2026 at 10:22 AM.

FTC report from Los Angeles, CALIFORNIA

September 9, 2026 at 4:58 PM

738-998-9798 was logged as a robocall. Violation date: September 9, 2026 at 11:55 AM.

FTC report from CALIFORNIA

September 8, 2026 at 11:54 PM

738-200-4362 was logged as a robocall. Category: Dropped call or no message. Violation date: September 8, 2026 at 9:23 AM.

FTC report from CALIFORNIA

September 8, 2026 at 1:20 PM

738-200-4318 was logged as a robocall. Category: Dropped call or no message. Violation date: September 8, 2026 at 10:15 AM.