Reported (523) XXX-XXXX phone numbers lookup
Browse phone numbers assigned to area code 523, used for Personal Communication Services (PCS) in the United States. Our database currently includes 10,000 numbers from this range, of which a total of numbers have been recently reported.
Find Entries for 523 area code:
Latest Entries for 523 area code:
No reports have been submitted for the 523 area code yet.
Recent Reports:
(206) 922-0880
Robocall spam from 206-922-0880.
(866) 771-6169
A robocall warned about an imposter scam, pretending to be a government office or other official source (number 866-771-6169).
(888) 905-0901
Robocalls from 888-905-0901 impersonate a government, business, or someone known and try to scam the recipient.
(877) 578-2315
An automated robocall advertising spam came in on 877-578-2315.
(877) 578-2751
A robocall warning of spam came in on 877-578-2751 and was flagged as unwanted.
(941) 726-1627
This number keeps calling as a robocall and is being reported as spam.
(888) 310-1306
A robocall on 888-310-1306 came through as spam and prompted complaints.
(866) 771-5582
An automated spam call came in using 866-771-5582.
About Area Code 523
Area code 523 supports non-geographic personal communications and other 5XX services across the North American Numbering Plan. It serves communications applications that can connect fixed equipment, mobile devices, and unattended machines through an E.164 telephone-number format.
- Location: Personal Communication Services (PCS), Non-Geographic
- Time Zone: UTC
- Introduced: 2018
- Overlay Code: None listed
- Service Type: Mixed (Landline, Mobile, VoIP)
- Major Carriers: Unknown
- Numbers in Our Database: Over 10 thousand phone records.
Area Code 523 History and Coverage
Area code 523 was assigned for non-geographic services on June 13, 2018, following its May 2012 reservation within a broader expansion of 5XX numbering resources. The reservation followed an Industry Numbering Committee effort to update the former 5XX service category for emerging technologies, including machine-to-machine communications and other applications requiring E.164 addresses.
Earlier 5XX guidelines focused on personal communications services. The revised framework expanded the resource for connected equipment, wireless devices, appliances, and systems that exchange information with people or back-office platforms. It also established the Non-Geographic 5XX-NXX Code Assignment Guidelines, which govern provider access to these resources.
Each assigned 5XX-NXX code represents a block of 10,000 numbers issued to a service provider. Coverage for a 523 number follows the provider's network and service arrangement, giving the code a North American scope defined by service networks. For number research, provider and subscriber records provide the most relevant context. NANPA's April 2026 5XX exhaust analysis lists 523 among the non-geographic 5XX NPAs in service.