Receiving a text from an unusual number, like a short three-digit code, can often be puzzling. If you’ve received a message from a 456 phone number, you might be wondering about its origin and legitimacy. This article clarifies what this number represents and who typically uses it.
Understanding the “456” Prefix
First and foremost, it is essential to understand that “456” is not a standard telephone area code in the North American Numbering Plan (NANP), which covers the United States, Canada, and parts of the Caribbean. There is no city or geographic region assigned to the 456 area code.
Instead, when you receive a text from a short number like this, it is known as a “short code.” These are 3- to 6-digit numbers used by organizations to send text messages in bulk, often for alerts, marketing, or verification purposes.
Who Uses the 456 Short Code?

The short code 456 is most notably used by the AARP (American Association of Retired Persons). AARP is a U.S.-based interest group that focuses on issues affecting those over the age of fifty.
When you receive a text message from the 456 phone number, it is typically for one of the following reasons:
- AARP Alerts: Providing news, information, and updates on topics relevant to AARP members.
- Advocacy and Action Items: Informing recipients about important legislation, petitions, and ways to get involved in causes supported by AARP.
- Membership Information: Sending reminders or updates related to an individual’s AARP membership.
How to Respond to a Text from 456
If you are an AARP member or have recently engaged with their website or services, receiving a text from this number is likely legitimate. However, if you wish to stop receiving these communications, the process is straightforward.
- To Opt-Out: You can typically reply to the message with standard keywords like STOP, END, or UNSUBSCRIBE. This should signal the system to remove your phone number from the messaging list.
- For Assistance: If you need more information about the service, you can often reply with the word HELP.
As with any unsolicited text message, it is wise to be cautious. Avoid clicking on links unless you are certain of the sender’s identity. If a message from a 456 phone number asks for sensitive personal information, it is best to ignore it and contact the organization directly through their official website or customer service line to verify the request.