The 423 area code is serving East Tennessee, as well as portions of Van Buren and Sequatchie counties in Middle Tennessee. Look up any phone number starting with 423 area code.
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Scammers use 423 numbers for Social Security scams and aggressive car warranty calls. They try to sell you worthless service contracts or steal your personal information by posing as agents.
Scammers call residents in the Chattanooga and Tri-Cities areas pretending to be from the Social Security Administration, using fake names like "Officer Alex Riley." They claim your SSN has been used for fraud "near the south Texas border" and threaten to suspend your number, cancel your benefits, or send detectives to your door to arrest you if you don't confirm your personal information over the phone. They use this information for identity theft and to open fraudulent accounts. The Social Security Administration will never call you to threaten your benefits. They contact people by mail, not threatening phone calls.
"They wanted to suspend my number and told me two detectives would be at my door in the morning to issue me another one. Scammmm"
These robocallers harass residents across the 423 area code multiple times a day claiming your car's warranty is about to expire. They call dozens of times from numbers that change slightly, hang up when you ask for the company name, and pressure you to buy a "vehicle protection plan" for cars you may not even own anymore. One caller admitted they don't have a "do not call" list when asked to remove a number. They use your interest to sell overpriced or worthless service contracts. These calls are not from your car's manufacturer or dealership.
"lady from this number called me. Told her we have told them several times we are not interested in their car warranty, and I hung up on her. She immediately called me back. I answered phone with the response of 'why are you calling me back?' She answered, 'to let you know we don't have a do not call list.'"
Scammers call 423 numbers with urgent, threatening messages claiming "complaints have been filed against you." They provide fake case numbers and threaten to serve you with papers at your home or job, or that "it would be bad if he found me first," unless you call back immediately. They use intimidating language to create fear and pressure you or your attorney to call a different number right away. They use this fear to trick you into paying fake debts or giving personal information. Real process servers do not call ahead to warn you. They show up.
"I received a message from this man stating that he had two complaints against me and that I needed to call another number with a case number. He then stated on the message that I needed to call back because it would be bad if he found me first."
Automated calls claim to be from CVS, CVS Caremark, or Aetna, often knowing your first name and stating you have an "overdue prescription." They direct you to call back a different 800-number with a long extension or ask you to verify your name and date of birth. They may mention pharmacies you don't use, like CVS or Walgreens. They use this personal and health information for identity theft and insurance fraud. Real pharmacies use automated reminders, but they don't use deceptive tactics like directing you to call unfamiliar numbers.
"Got a call from 423-822-2465 telling my prescription is overdue and asking me to call 855-708-3581 and a extension number I don't ever used CVS, that's a scam"
Callers pretend to be from the IRS or another federal agency, claiming you owe thousands in back taxes. They threaten that you will be arrested, have police sent to your house, or be "taken over by the federal government" if you don't pay immediately through specific, untraceable payment methods. The callers often have strong accents and become aggressive when questioned, hanging up if you challenge them. They use your fear to steal money through untraceable payments. The IRS contacts people through official U.S. Mail first, never through threatening phone calls demanding immediate payment.
"claimed to be IRS. asked for 7 thousand dollars or id go to jail and send police to my house. obviously fake and as soon as I questioned the person about it they hung up. Indian accent."
Scammers call posing as a "Medicare advisor" or medical supply company, offering free cancer screenings or "free" back braces. They claim they've "tried contacting you by mail" and threaten that Medicare will "disqualify" you, "drop you," or "deny all future claims" if you don't respond by providing or confirming your Medicare number over the phone. They call the same houses three to four times a day with recorded messages. They use your Medicare number to bill Medicare for thousands of dollars in equipment you never needed or received. If you have questions about your benefits, call 1-800-MEDICARE directly.
"This number calls my house about three-four times a day. They leave a recorded message that my braces are ready and if they don't hear from me, medicare will deny all future claims."
Scammers call local homes and businesses claiming to be from the electric company, threatening to shut off your power within 30 minutes unless you make an immediate payment over the phone using a specific, unusual payment method. They use this false urgency to steal your payment information or trick you into paying fake bills. Utility companies send multiple written notices through the mail before disconnecting service. They never call demanding immediate payment to prevent a shutoff happening in minutes.
"This number calls me once a month to tell me my electric is going to be shut off within the next 30min if I don't call and make a payment."
Area Code 423 phone numbers reported as unwanted calls to the FTC in the last 30 days.
(423) 723-5928
5 reports ·
(423) 354-0175
2 reports ·
(423) 586-7613
2 reports ·
(423) 955-0913
2 reports ·
(423) 539-1976
2 reports ·
(423) 414-2649
2 reports ·
(423) 327-4011
2 reports ·
(423) 460-0609
2 reports ·
(423) 875-9637
2 reports ·
(423) 392-4655
2 reports ·
No, 423 is a legitimate Tennessee area code serving the eastern portion of the state, including Chattanooga and Johnson City. Scammers spoof 423 numbers because the prefix is trusted by residents across eastern Tennessee.
SSA impersonators using fake names like "Alex Riley" claiming your number was used near the Texas border are highly reported. CVS Caremark and Aetna pharmacy phishing calls claiming overdue prescriptions, and IRS arrest warrant callers demanding untraceable payments, are distinctly localized here.
Area code 423 serves two disconnected areas of East Tennessee, separated by area code 865.
No other cities and towns are explicitly mentioned in the provided context.
Area code 423 is overlaid by area code 729 . Area code 423 was created in 1995. Area code 729 was approved on May 30, 2023. Permissive ten-digit dialing started on August 5, 2024, and becomes mandatory on August 5, 2025. Central office code activations for 729 may begin on September 5, 2025.
Area code 423 is a general purpose code which was placed in service on September 11, 1995.
| Rate Center | Number of Prefixes |
|---|---|
| CHATTNOOGA | 147 |
| JOHNSON CY | 41 |
| CLEVELAND | 25 |
| MORRISTOWN | 22 |
| KINGSPORT | 21 |
| BRISTOL | 20 |
| ATHENS | 16 |
| GREENEVL | 13 |
| LAFOLLETTE | 9 |
| MIDWAY SUL | 8 |
| NEWPORT | 8 |
| ELIZABTHTN | 6 |
| ONEIDA | 6 |
| DAYTON | 5 |
| Other | 113 |
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