The 463 area code is an overlay serving Indianapolis and its surrounding suburbs. Introduced in 2016, it was layered directly on top of the established 317 area code to meet continued demand for phone numbers across the growing Indianapolis metropolitan area.
Quick Summary of the 463 Area Code
| Area Code | 463 |
| State | Indiana (IN) |
| Region | Indianapolis Metropolitan Area |
| Major Cities | Indianapolis, Carmel, Fishers, Noblesville, Greenwood, Lawrence, Plainfield, Avon |
| Time Zone | Eastern Time (ET) – EST / EDT |
| Dialing Format | 10-digit dialing required |
Geographic Coverage
The 463 area code shares an identical footprint with 317, covering the city of Indianapolis and its Marion County suburbs of Carmel, Fishers, Noblesville, Greenwood, Lawrence, Plainfield, and Avon. Because it is an overlay rather than a separate region, a 463 number and a 317 number can exist on the same street.
Time Zone
The 463 area code observes Eastern Time (ET). Clocks follow Eastern Standard Time (UTC−5) in winter and shift to Eastern Daylight Time (UTC−4) from mid-March through early November. Most of Indiana is on Eastern Time, though the northwest corner near Chicago and the Evansville area in the southwest observe Central Time. From the West Coast, this region is three hours ahead of Pacific Time, so a 9:00 AM call in California reaches a 463 number at 12:00 PM local time.
Tip: Business hours across the 463 region generally run 9:00 AM to 5:00 PM local time, Monday through Friday.
How to Dial a 463 Number
Because area code 463 operates as part of an overlay, 10-digit dialing is mandatory for every local and long-distance call. You must dial the full 10-digit number (463 + the seven-digit line number) even when calling a neighbor across the street. For international callers, dial your country’s exit code, then +1 (the North American country code), then 463, followed by the seven-digit local number.
Scam Alerts for the 463 Area Code
Like every U.S. area code, 463 has been used by scammers who spoof local numbers to appear trustworthy. Residents in Indianapolis, Carmel, Fishers, Noblesville, Greenwood, Lawrence, Plainfield, Avon should stay alert to the following common tactics:
| Scam Type | What to Watch For |
|---|---|
| IRS / Tax Scams | Threatening calls demanding immediate tax payment via gift cards or wire transfer. |
| Utility Shut-off | Impostors claiming to be AES Indiana or Duke Energy threatening to cut power. |
| Tech Support Fraud | Pop-ups or calls claiming your computer is infected and asking for remote access. |
| Prize / Lottery Scam | Calls saying you won a prize but must pay a “fee” or “tax” to claim it. |
If you receive a suspicious call from a 463 number, take these steps to protect yourself:
- Do not share personal information such as Social Security numbers, bank details, or passwords over the phone.
- Hang up and verify by calling the organization back using an official number from its website.
- Report the call to the FTC at reportfraud.ftc.gov and to the Indiana Attorney General’s Office.
- Block the number and consider registering with the National Do Not Call Registry.
Red Flag: Legitimate agencies such as the IRS, Social Security Administration, or your local utility company (AES Indiana, Duke Energy, or NIPSCO) will never demand immediate payment by gift card, wire transfer, or cryptocurrency. Any 463 caller making such a demand is a scammer.
History and Economy of the 463 Region
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The 463 area code entered service in 2016 as an overlay for the entire 317 region. Overlays let regulators add a fresh supply of phone numbers to a crowded area without forcing existing customers to change their established numbers, so 463 covers precisely the same cities as 317. The regional economy is powered by state government, the pharmaceutical giant Eli Lilly and Company, a major logistics and air-cargo sector anchored by the FedEx hub at Indianapolis International Airport, and the world-famous motorsports industry centered on the Indianapolis Motor Speedway. Because 463 is the newer of the two Indianapolis codes, it appears most often on recently activated mobile numbers and newly established business lines.
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Looking Up a 463 Number
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To identify a 463 caller, use a reverse phone lookup or search the complete 10-digit number online. Because 463 is a newer code often used for mobile numbers, some callers may have a smaller public footprint, so never share personal or financial details with an unverified caller.
Nearby & Related Area Codes
Indiana is served by several area codes. If you are researching 463, these neighboring and overlay codes are worth knowing:
- 317 – Indianapolis (overlay partner)
- 765 – Central IN / Muncie & Lafayette
- 812 – Southern IN / Evansville
- 219 – Northwest IN / Gary
- 260 – Northeast / Fort Wayne
You can also browse our full directory of Indiana area codes for more regional guides.
↑ See the complete list of All US Area Codes by State – every area code across all 50 states in one directory.
Explore Neighboring States
Researching area codes just across the state line? Start with these codes in the states that border Indiana:
Frequently Asked Questions
Where is the 463 area code located?
The 463 area code serves Indianapolis and its suburbs as an overlay of the 317 area code, covering Carmel, Fishers, Noblesville, Greenwood, and the rest of the metro.
Why does 463 cover the same area as 317?
463 is an overlay added in 2016 because the 317 region ran short of available phone numbers. Both codes serve the exact same geographic area.
Do I have to dial 10 digits for 463?
Yes. Overlay area codes like 463 always require 10-digit dialing for local calls.
Is the 463 area code Eastern Time?
Yes, the 463 area code follows Eastern Time (EST/EDT), like most of Indiana.
Related 463 Guides
- Is a 463 call safe? Read Is area code 463 a scam? Spam & safety guide.
- Local coverage: see the Indianapolis area code guide.
- Worried about spam or robocalls? Browse our Scam Alerts directory.