Area code 423 — Chattanooga, Tennessee
- Area code
- 423
- Location
- Chattanooga, Tennessee
- Local time
- Central Time
Area code 423 covers Chattanooga and surrounding communities in Tennessee.
Updated 28 July 2026
Where is area code 423?
Area code 423 is in Chattanooga, Tennessee, covering Chattanooga and surrounding communities in Tennessee. All 423 numbers are on Central Time.
Cities
Chattanooga
Is area code 423 a scam?
No. Area code 423 is a legitimate area code serving Chattanooga since 1995. Scammers spoof caller ID to display 423 numbers, which is why complaints exist against a code that is itself genuine.
Neighbour spoofing is the reason a local-looking number is not a guarantee. A caller anywhere in the world can display a 423 number, and the number they display may belong to a real business in Chattanooga that has nothing to do with the call.
- Area code 423 had 772 different numbers reported for spam calls in the 30 days to 28 July 2026.
- Area code 423 ranks 47th of 331 US geographic area codes by spam complaint volume.
- Of the 814 complaints about area code 423 in the 30 days to 28 July 2026, 57% were reported as a recorded message or robocall.
- The most reported subject on area code 423 is medical & prescriptions, appearing in 21% of its complaints in the 30 days to 28 July 2026.
Most reported numbers · last 30 days
| Number | Reports | Last reported |
|---|---|---|
| (423) 987-4260 | 5 | 12 days ago |
| (423) 212-9013 | 3 | 5 days ago |
| (423) 477-9363 | 3 | 7 days ago |
| (423) 487-8465 | 3 | 5 days ago |
| (423) 960-1949 | 3 | 8 days ago |
A number listed here may itself be a spoofing victim rather than the caller. These are unverified consumer reports.
Source: FTC Do Not Call Reported Calls Data, unverified consumer reports, retrieved 28 July 2026. Request a correction.
What these calls were about
Each figure is that subject’s share of every 423 complaint in the 30 days to 28 July 2026, as categorised by the consumer who reported it.
Medical & prescriptions
21% of reported 423 calls · 174 complaints
Calls pretending to be government, businesses, or family and friends
11% of reported 423 calls · 88 complaints
Reducing your debt (credit cards, mortgage, student loans)
4% of reported 423 calls · 35 complaints
Warranties & protection plans
1% of reported 423 calls · 10 complaints
Computer & technical support
1% of reported 423 calls · 7 complaints
Energy, solar, & utilities
1% of reported 423 calls · 5 complaints
Businesses can prevent their own numbers from being mistaken for calls like these.
Calls from your 423 number not landing?
Why am I getting text messages from area code 423?
Texts from 423 numbers follow the same pattern as calls — mostly local businesses and services. Treat any text asking for payment or credentials as suspect regardless of the code.
The common patterns are a wrong-number opener that turns into conversation, an unsolicited job offer, and a crypto or investment tip. Do not reply, do not follow the link, and forward the message to 7726 (SPAM) to report it to your carrier.
Who works in the Chattanooga area?
Area code 423 serves Chattanooga and the eastern edge of Tennessee, split into two non-contiguous sections that wrap around Knoxville's 865. It has been in service since 1995. Chattanooga's economy was rebuilt around advanced manufacturing and freight. Volkswagen assembles vehicles at its Chattanooga plant, the city's largest industrial employer, and trucking and logistics firms cluster here because three interstates converge on the Tennessee River crossing. Insurance is the quiet second pillar, with Unum and BlueCross BlueShield of Tennessee both headquartered downtown.
Who lives in the 423 region
The city made an unusual bet on infrastructure. EPB, the municipal utility, built a citywide fiber network that gave Chattanooga some of the fastest residential internet in the country and pulled in a small but real cluster of software startups and remote workers. The population inside the city was 185,783 in 2024, with a median household income of $64,523, a median age of 36.3, and a poverty rate of 19.1 percent (DataUSA, 2024). The workforce splits between plant floors, hospital systems, and back-office insurance operations.
What a 423 number signals to a caller
To a customer in the region, a number in area code 423 signals East Tennessee, and locals distinguish it readily from Nashville's 615 or Memphis's 901. Callers describe the business tone as courteous and unhurried, with relationships counting for more than volume. The area sits on Eastern Time, unlike Nashville, which is on Central. That one-hour split inside Tennessee catches outside callers off guard more than anything else about dialling in.
Questions
Where is area code 423?
Area code 423 serves Chattanooga and surrounding communities in Tennessee. It is in the Central Time zone.
What state is area code 423 in?
Area code 423 is in Tennessee. It is not in Midland or Akron — those are area codes 432 and 234.
Is area code 423 toll free?
No. Area code 423 is a geographic area code serving Chattanooga, Tennessee. The toll-free codes are 800, 833, 844, 855, 866, 877, 888, and a call to a 423 number is charged at your normal rate.
Why am I getting calls from 423?
Calls displaying a 423 number come from businesses and individuals in the Chattanooga area, and from anywhere at all when caller ID is spoofed to look local. 772 423 numbers were reported to the FTC in the 30 days to 28 July 2026.
How do I block calls from area code 423?
Both iOS and Android can silence calls from unknown numbers, and every major US carrier offers free call-blocking. Blocking the whole of area code 423 is rarely worth it, because spoofed numbers change constantly and you would lose legitimate calls from Chattanooga.
Often confused with
Area code 423 is easily mistyped as 432 (Midland) or 234 (Akron).