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815-503

You are reviewing the Area Code (NPA/NXX) report for 815-503. Did you mean to search the SMS short code 815503?

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Phone LookupTop ComplaintsArea CodesNPA-NXXiMessage
Examples: 206-739-5800, 206, 206-739, 48369
Raw Number815503
Basic Format815-503
NPA (Area Code)815
NXX503

Call Routing Data

NPA-NXX-XOCNCompanyRate CenterUse TypeAssign DateCityStateRegionBlock Effective Date
815-503-0XXX6529T-MOBILE USA, INC.MENDOTARTMENDOTAILMW
815-503-1XXX6333CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ILMENDOTAAS11/16/2005MENDOTAILMW12/19/2005
815-503-2XXX6333CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ILMENDOTAAS02/05/2008MENDOTAILMW02/21/2008
815-503-3XXX6333CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ILMENDOTAAS05/20/2010MENDOTAILMW06/19/2010
815-503-4XXX6529T-MOBILE USA, INC.MENDOTAAS04/04/2011MENDOTAILMW04/14/2011
815-503-5XXX6529T-MOBILE USA, INC.MENDOTAAS04/30/2018MENDOTAILMW05/09/2018
815-503-6XXX5562METROPCS, INC.MENDOTAAS09/18/2020MENDOTAILMW09/30/2020
815-503-7XXX6529T-MOBILE USA, INC.MENDOTAAS10/02/2012MENDOTAILMW10/12/2012
815-503-8XXX063EPEERLESS NETWORK OF ILLINOIS, LLC - ILMENDOTAAS10/12/2015MENDOTAILMW11/05/2015
815-503-9XXX6529T-MOBILE USA, INC.MENDOTARTMENDOTAILMW
815-503-XXXX5562METROPCS, INC.MENDOTAASMENDOTAIL

Reports

Anonymous User from Auburn, Washington

March 17, 2026 at 1:47 AM

815-503-9524 reported as a Live Voice or Other. Received on March 16, 2026 at 12:00 PM.

Anonymous User from Rockford, Illinois

February 18, 2026 at 2:31 PM

815-503-8647 reported as a Robocall. Received on February 18, 2026 at 11:41 AM.
Call for Dropped call or no message

Anonymous User from Rockford, Illinois

February 18, 2026 at 1:09 PM

815-503-8647 reported as a Robocall. Received on February 18, 2026 at 11:41 AM.

Anonymous User from Lena, Illinois

November 24, 2025 at 3:12 PM

815-503-8393 reported as a Robocall. Received on November 24, 2025 at 2:12 PM.
Call for Medical & prescriptions

Anonymous User from Rockford, Illinois

July 27, 2024 at 8:39 PM

815-503-8814 reported as a Robocall. Received on July 27, 2024 at 12:46 PM.

Anonymous User from Arlington Heights, Illinois

May 29, 2024 at 9:58 AM

815-503-8768 reported as a Robocall. Received on May 29, 2024 at 8:49 AM.
Call for Medical & prescriptions

Anonymous User from Chicago, Illinois

January 31, 2024 at 1:35 PM

815-503-0283 reported as a unwanted call. Received on January 31, 2024 at 12:33 PM.
Call for No Subject Provided

Anonymous User from Springfield, Illinois

January 27, 2024 at 9:30 AM

815-503-7609 reported as a unwanted call. Received on January 24, 2024 at 8:57 AM.

Anonymous User from , IL

January 26, 2024 at 5:02 PM

815-503-4840 reported as a unwanted call. Received on January 26, 2024 at 3:05 PM.
Call for No Subject Provided

Anonymous User from , WI

October 13, 2023 at 3:16 PM

815-503-8056 reported as a Robocall. Received on October 13, 2023 at 12:00 AM.
Call for Warranties & protection plans

Anonymous User from Roscoe, Illinois

June 30, 2023 at 10:34 AM

815-503-0312 reported as a Robocall. Received on June 30, 2023 at 9:30 AM.
Call for Medical & prescriptions

Anonymous User from Wonder Lake, Illinois

March 24, 2023 at 1:05 PM

815-503-5802 reported as a Robocall. Received on March 24, 2023 at 12:03 PM.
Call for Energy, solar, & utilities

Anonymous User from Ill, Illinois

October 7, 2022 at 12:24 PM

815-503-1896 reported as a Robocall. Received on October 7, 2022 at 11:20 AM.

Most 'popular' numbers on this prefix:

815-503-0XXX: 815-503-0300 | 815-503-0303 | 815-503-0307 | 815-503-0314 | 815-503-0315 | 815-503-0317 |
815-503-2XXX: 815-503-2300 | 815-503-2345 | 815-503-2352 | 815-503-2391 | 815-503-2396 | 815-503-2399 | 815-503-2600 | 815-503-2630 | 815-503-2633 | 815-503-2638 | 815-503-2661 | 815-503-2663 |
815-503-3XXX: 815-503-3200 | 815-503-3201 | 815-503-3208 | 815-503-3258 |
815-503-4XXX: 815-503-4840 | 815-503-4847 | 815-503-4848 | 815-503-4887 | 815-503-4888 | 815-503-4889 |
815-503-5XXX: 815-503-5800 | 815-503-5808 | 815-503-5809 | 815-503-5887 |
815-503-7XXX: 815-503-7600 | 815-503-7608 | 815-503-7609 | 815-503-7654 |
815-503-8XXX: 815-503-8000 | 815-503-8008 | 815-503-8009 | 815-503-8050 | 815-503-8053 | 815-503-8054 | 815-503-8800 | 815-503-8810 | 815-503-8815 | 815-503-8818 | 815-503-8899 |