phone.gd North American phone lookup, short codes, caller signals, and complaint-driven research.
Area Code Detail

Area Code 748

Northern and Western Colorado · In service since 2026

CO
Reports, 30 Days 1

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

Reports, 180 Days 8

Broader complaint volume used to prioritize indexable pages.

Active Prefixes 15

Distinct NPA-NXX exchanges surfaced from routing and complaint data.

Carriers / Assignees 1

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

Cities / Rate Centers 0

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

Northern and Western Colorado

overlaid on 970

Top carriers and assignees

  • MULTIPLE OCN LISTING · 14 routing rows
NPA-NXX

Strongest exchanges inside area code 748

These prefixes combine recent complaint concentration with routing or assignment density, which makes them good candidates for indexing and exploration.

Prefix Complaint Score Routing Rows Companies Cities
748-224 4 0 0 0
748-211 0 1 1 0
748-311 0 1 1 0
748-411 0 1 1 0
748-511 0 1 1 0
748-555 0 1 1 0
748-611 0 1 1 0
748-700 0 1 1 0
748-711 0 1 1 0
748-811 0 1 1 0
748-911 0 1 1 0
748-950 0 1 1 0
748-958 0 1 1 0
748-959 0 1 1 0
748-976 0 1 1 0
Recent Signals

Latest complaint activity tied to 748

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

FTC report from Palisade, COLORADO

March 26, 2026 at 7:09 PM

This report was logged as a robocall. Violation date: March 26, 2026 at 12:36 PM.

FTC report from Wexford, PENNSYLVANIA

February 22, 2026 at 12:02 PM

This report was logged as a live voice. Category: Dropped call or no message. Violation date: February 21, 2026 at 2:51 PM.

FTC report from Colorado Springs, COLORADO

February 4, 2026 at 10:36 PM

This report was logged as a live voice. Category: Dropped call or no message. Violation date: February 4, 2026 at 12:56 PM.

FTC report from Wexford, PENNSYLVANIA

February 4, 2026 at 11:03 AM

This report was logged as a live voice. Violation date: February 2, 2026 at 11:47 AM.

FTC report from South Holland, ILLINOIS

December 8, 2025 at 6:00 PM

This report was logged as a robocall. Violation date: December 1, 2025 at 4:52 PM.

FTC report from VIRGINIA

November 25, 2025 at 4:32 PM

748-224-2001 was logged as a live voice. Violation date: January 16, 2025 at 12:00 AM.

FTC report from Pamplico, SOUTH CAROLINA

November 20, 2025 at 8:11 AM

This report was logged as a live voice. Violation date: November 19, 2025 at 5:00 PM.

FTC report from Pamplico, SOUTH CAROLINA

November 20, 2025 at 8:08 AM

This report was logged as a live voice. Violation date: November 19, 2025 at 1:00 PM.

FTC report from New Port Richey, FLORIDA

September 27, 2025 at 5:45 PM

748-562-1208 was logged as a robocall. Violation date: September 26, 2025 at 10:48 AM.

FTC report from New Port Richey, FLORIDA

September 26, 2025 at 1:11 PM

748-562-1208 was logged as a robocall. Violation date: September 26, 2025 at 9:08 AM.

FTC report from Waterford, OHIO

September 19, 2025 at 9:53 AM

748-999-2078 was logged as a unwanted call. Category: Dropped call or no message. Violation date: September 16, 2025 at 7:22 PM.

FTC report from Waterford, OHIO

September 19, 2025 at 9:51 AM

748-452-3230 was logged as a unwanted call. Category: Dropped call or no message. Violation date: September 16, 2025 at 10:23 AM.

FTC report from CALIFORNIA

August 13, 2025 at 7:49 PM

This report was logged as a robocall. Category: Dropped call or no message. Violation date: August 13, 2025 at 10:44 AM.

FTC report from OHIO

July 11, 2025 at 11:20 AM

This report was logged as a live voice. Category: Dropped call or no message. Violation date: July 10, 2025 at 6:18 PM.

FTC report from Charlotte, NORTH CAROLINA

July 9, 2025 at 11:39 AM

This report was logged as a robocall. Category: Medical & prescriptions. Violation date: July 9, 2025 at 11:36 AM.

FTC report from COLORADO

July 6, 2025 at 10:04 PM

748-772-9711 was logged as a robocall. Category: No Subject Provided. Violation date: July 3, 2025 at 12:00 AM.

FTC report from COLORADO

July 6, 2025 at 10:04 PM

748-772-9722 was logged as a robocall. Category: No Subject Provided. Violation date: July 1, 2025 at 12:00 AM.

FTC report from San Pedro, CALIFORNIA

July 5, 2025 at 6:17 PM

This report was logged as a robocall. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 2, 2025 at 9:16 AM.

FTC report from Fullerton, CALIFORNIA

July 2, 2025 at 6:22 PM

748-584-1818 was logged as a live voice. Violation date: July 2, 2025 at 9:48 AM.

FTC report from Dublin, OHIO

May 2, 2025 at 11:48 AM

748-627-9100 was logged as a robocall. Violation date: April 30, 2025 at 6:11 PM.

FTC report from Mesa,az, ARIZONA

April 23, 2025 at 7:43 PM

This report was logged as a unwanted call. Violation date: April 23, 2025 at 4:32 PM.

FTC report from MINNESOTA

March 31, 2025 at 5:37 PM

748-481-8008 was logged as a robocall. Violation date: March 31, 2025 at 4:00 PM.

FTC report from Monroeville, NEW JERSEY

March 10, 2025 at 7:12 PM

This report was logged as a robocall. Violation date: March 10, 2025 at 5:27 PM.

FTC report from MISSOURI

March 4, 2025 at 11:40 AM

748-208-2841 was logged as a live voice. Category: Calls pretending to be government, businesses, or family and friends. Violation date: March 4, 2025 at 9:55 AM.

FTC report from Toms River, NEW JERSEY

October 3, 2024 at 4:55 PM

748-249-1094 was logged as a robocall. Category: Dropped call or no message. Violation date: October 3, 2024 at 4:53 PM.

FTC report from Harwinton, CONNECTICUT

September 10, 2024 at 4:22 PM

This report was logged as a live voice. Violation date: September 5, 2024 at 6:22 PM.

FTC report from Waterloo, NEW YORK

August 28, 2024 at 12:04 PM

748-336-8480 was logged as a live voice. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: August 28, 2024 at 11:26 AM.

FTC report from Tacoma, WASHINGTON

August 23, 2024 at 6:04 PM

This report was logged as a robocall. Violation date: August 23, 2024 at 2:38 PM.

FTC report from West Liberty, KENTUCKY

August 21, 2024 at 10:45 AM

This report was logged as a live voice. Violation date: August 16, 2024 at 9:12 AM.

FTC report from NEW JERSEY

August 12, 2024 at 8:50 PM

748-368-6250 was logged as a robocall. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: August 12, 2024 at 2:00 PM.

FTC report from PENNSYLVANIA

July 5, 2024 at 11:12 AM

748-529-3511 was logged as a live voice. Category: Calls pretending to be government, businesses, or family and friends. Violation date: July 2, 2024 at 2:23 PM.

FTC report from Bangalore, INDIANA

June 11, 2024 at 1:57 PM

748-371-6522 was logged as a robocall. Violation date: June 11, 2024 at 9:30 AM.

FTC report from VIRGINIA

June 3, 2024 at 2:51 PM

This report was logged as a robocall. Violation date: June 3, 2024 at 2:42 PM.

FTC report from Elmhurst, NEW YORK

May 29, 2024 at 7:51 PM

748-997-1400 was logged as a live voice. Violation date: May 28, 2024 at 3:21 PM.

FTC report from South Vienna, OHIO

May 6, 2024 at 8:44 PM

This report was logged as a unwanted call. Category: Dropped call or no message. Violation date: May 6, 2024 at 11:43 AM.

FTC report from MISSOURI

January 22, 2024 at 4:47 PM

748-729-5565 was logged as a live voice. Category: Reducing your debt (credit cards, mortgage, student loans). Violation date: January 22, 2024 at 3:22 AM.

FTC report from Southlake, TEXAS

December 1, 2023 at 9:52 PM

748-481-2121 was logged as a live voice. Violation date: December 1, 2023 at 11:42 AM.

FTC report from Richmond, TEXAS

November 26, 2023 at 10:33 AM

This report was logged as a robocall. Category: No Subject Provided. Violation date: November 25, 2023 at 11:48 PM.

FTC report from Lafayette, CALIFORNIA

November 22, 2023 at 6:41 PM

748-934-1439 was logged as a robocall. Violation date: November 22, 2023 at 12:10 PM.

FTC report from I Winston Salem, NORTH CAROLINA

November 2, 2023 at 2:21 PM

748-730-0776 was logged as a robocall. Category: Medical & prescriptions. Violation date: November 2, 2023 at 1:05 PM.

Routing

Detailed routing and assignment data

This table merges NANPA, pooled block, and Canadian assignment sources where available.

Prefix Block Carrier / Assignee Rate Center City State Use Type Assign Date
748-211 XXXX MULTIPLE OCN LISTING XXXXXXXXXX CO UA
748-311 XXXX MULTIPLE OCN LISTING XXXXXXXXXX CO UA
748-411 XXXX MULTIPLE OCN LISTING XXXXXXXXXX CO UA
748-511 XXXX MULTIPLE OCN LISTING XXXXXXXXXX CO UA
748-555 XXXX MULTIPLE OCN LISTING DIR ASST CO UA
748-611 XXXX MULTIPLE OCN LISTING XXXXXXXXXX CO UA
748-700 XXXX MULTIPLE OCN LISTING XXXXXXXXXX CO UA
748-711 XXXX MULTIPLE OCN LISTING XXXXXXXXXX CO UA
748-811 XXXX MULTIPLE OCN LISTING XXXXXXXXXX CO UA
748-911 XXXX MULTIPLE OCN LISTING XXXXXXXXXX CO UA
748-950 XXXX MULTIPLE OCN LISTING XXXXXXXXXX CO UA
748-958 XXXX MULTIPLE OCN LISTING XXXXXXXXXX CO UA
748-959 XXXX MULTIPLE OCN LISTING XXXXXXXXXX CO UA
748-976 XXXX MULTIPLE OCN LISTING XXXXXXXXXX CO UA