317 Area Code: Indianapolis, Indiana
Area code 317 serves Indianapolis, Carmel and Fishers, Indiana in the Eastern time zone, in service since 1947. Consumers have filed 5,454 unwanted-call complaints against 4,384 different 317 numbers, 547 of them with the FTC in the last 30 days. Look up the exact number that called you below.
Area code 317 at a glance
- State
- Indiana
- Main cities
- Indianapolis, Carmel, Fishers, Greenwood, Noblesville + 30 more
- Counties
- Marion County, Hamilton County, Hancock County, Hendricks County + 4 more
- Local time
- —Eastern
- In service since
- 1947
- Overlay code
- 463 (2016)
- Codes split off
- 765 (1997)
- Local dialing
- 10 digits (area code + number)
- Exchanges
- 37 rate centers, 786 prefixes
Sources: NANPA area code and central office code records (refreshed weekly); cities and counties matched from US Census Bureau and USGS place names.
Most-reported 317 numbers
Ranked by FTC Do Not Call complaints this month, then all-time FTC and FCC complaints. Only numbers with enough complaints for a full report page are listed. Click one for what it was reported for and where.
What calls from 317 numbers are about
2,183 FTC Do Not Call complaints about 317 numbers since Jul 24. The most common named subject is impostor calls (people pretending to be a government agency, a business or family), at 16% of complaints (82% of those were recorded messages). Overall, 65% of callers who answered said the call was a robocall.
FTC complaint subjects
- Other / unspecified89341%
- Impostor (government, business, family)34416%
- Medical & prescriptions26412%
- Dropped call / no message26112%
- No subject given22810%
- Debt reduction974%
- Warranties & protection plans382%
FCC complaints by call type, last 2 years
- Prerecorded Voice12344%
- Live Voice11842%
- Text Message3713%
13% of recent FCC complaints about 317 numbers are about text messages, not calls.
When 317 spam calls come in
33% of complaints that give a call time describe calls between 10am and 1pm. 95% came Monday to Friday, most on Thursdays, the pattern of call-center robocall campaigns that run on business hours. Times are as consumers reported them to the FTC.
By hour of the day
By day of the week
Is it getting worse?
608 FTC complaints about 317 numbers in the last four weeks, down 24% on the four weeks before. FCC complaints about 317 numbers peaked in 2017 (668); the FTC's daily Do Not Call data has carried most of the volume since mid-2026.
FTC complaints per week
FCC complaints per year
Years shown as '15 to '26; the current year is partial.
Who gets these calls
79% of the FTC complaints about 317 numbers came from people whose own phone number also starts with 317, and 82% from Indiana. Calls that look local to the person receiving them are the signature of neighbor spoofing: robocallers display a number from your own area code because you're more likely to answer.
Where complainants live
- Indiana1,78182%
- Florida512%
- California462%
- Ohio231%
- Texas221%
What people with 317 numbers report
People whose own number starts with 317 filed 2,569 FTC complaints since Jul 24. 67% were about calls showing another 317 number. The most common named subject was impostor calls (people pretending to be a government agency, a business or family).
Area codes on the calls they reported
- 317 (same code)1,71867%
- 463642%
- 765572%
- 833 (toll-free)502%
- 219361%
Busiest 317 prefixes this month
FTC complaints in the last 30 days, grouped by the first six digits. When one prefix collects complaints about many different numbers, a campaign is usually cycling through that block. The carrier is who NANPA assigned the prefix to, not who made the calls.
| Prefix | Complaints | Numbers | Carrier | Exchange |
|---|---|---|---|---|
| (317) 907-xxxx | 11 | 11 | Onvoy (Sinch) | Indianapolis |
| (317) 206-xxxx | 9 | 8 | Onvoy (Sinch) | Franklin |
| (317) 203-xxxx | 9 | 8 | PAETEC (Windstream) | Plainfield |
| (317) 936-xxxx | 9 | 7 | Ameritech (AT&T) | Charlottesville |
| (317) 350-xxxx | 8 | 8 | Comcast (Xfinity Voice) | Brownsburg |
Carriers operating in 317
NANPA has assigned 786 317 prefixes (NPA-NXX central-office codes) across 37 rate centers: 34% to wireless carriers, 66% to landline and VoIP operators; 62% are pooled blocks shared by several carriers. 3 prefixes were assigned in the last 12 months (newest 2026-09-15). The carrier holding a prefix is who the number was issued through. It says nothing about who is calling, since caller ID is routinely spoofed.
| Carrier | Type | Prefixes | Rate centers | Newest assignment |
|---|---|---|---|---|
| Ameritech (AT&T) | Incumbent landline (ILEC) | 297(38%) | 21 | 2012-05-10 |
| Verizon Wireless (Cellco Partnership) | Wireless | 80(10%) | 5 | 2023-12-05 |
| Omnipoint Communications Midwest Operations, LLC | Wireless | 80(10%) | 7 | 2026-09-15 |
| AT&T Mobility (New Cingular Wireless PCS) | Wireless | 65(8%) | 4 | 2025-06-20 |
| Level 3 (Lumen) | Competitive / VoIP (CLEC) | 35(4%) | 21 | 2013-06-21 |
| PAETEC (Windstream) | Competitive / VoIP (CLEC) | 31(4%) | 9 | 2015-06-11 |
| Teleport Communications America, LLC | Competitive / VoIP (CLEC) | 25(3%) | 12 | 2009-12-18 |
| Bandwidth.com | Competitive / VoIP (CLEC) | 22(3%) | 11 | 2021-07-01 |
| Level 3 (Lumen) | Competitive / VoIP (CLEC) | 22(3%) | 11 | 2014-11-07 |
| Onvoy (Sinch) | Competitive / VoIP (CLEC) | 17(2%) | 10 | 2026-05-07 |
| Spok, INC. | Wireless | 15(2%) | 1 | — |
| Metro by T-Mobile (MetroPCS) | Wireless | 14(2%) | 4 | 2016-07-18 |
Largest rate centers (exchanges) by prefixes: Indianapolis (509), Carmel (43), Fishers (34), Greenwood (22), Noblesville (16), Greenfield (14), Plainfield (14), Franklin (12), Shelbyville (12), Brownsburg (7). Source: NANPA Central Office Code Utilized Assignments (public, refreshed weekly).
What to do about calls from 317 numbers
Before you call back
- Impostor (government, business, family) is the top named complaint here. Hang up and call the agency, bank or relative back on a number you already know. Government agencies don't demand payment by gift card, wire transfer or crypto. Read about Social Security impostor calls and fake bank fraud calls.
- Look up the full number above. A missed call from 317 with no voicemail is usually a robocall; anyone who needs you will leave a message.
- If it looks like a neighbor's number, it may be spoofed. See calls from your own area code.
- Block repeat callers: iPhone, Android, or your carrier's free filter (Verizon, AT&T, T-Mobile).
Report it in Indiana
- Unwanted sales calls and robocalls: donotcall.gov (FTC). Scams and fraud: ReportFraud.ftc.gov.
- Spoofing, texts and call-blocking problems: FCC consumer complaints.
- State complaints: Indiana Attorney General.
- Indiana is one of the states that maintains its own Do Not Call registry alongside the federal National Do Not Call Registry, so telemarketers calling Indiana numbers are expected to check both lists. Registering on the federal list at donotcall.gov is free and never expires; the state list is administered separately and may have its own registration process and renewal period.
Your FTC and FCC reports are published (without your name or number) in the datasets this page is built from. How to report unwanted calls.
Area code 317: questions answered from the data
Where is area code 317?
Area code 317 serves Indianapolis, Carmel and Fishers, Indiana, covering Marion County, Hamilton County and Hancock County and 5 more counties. It has been in service since 1947.
What time zone is area code 317 in?
Area code 317 is in the Eastern time zone (UTC−5, or UTC−4 during daylight saving time). The current local time is shown at the top of this page.
Which area codes overlay 317?
463 (in service 2016) serves the same area as 317. New numbers there can be issued with any of these codes, and local calls need all 10 digits. A spoofed call can display any of them.
What are calls from 317 numbers usually about?
Since Jul 24, consumers filed 2,183 FTC Do Not Call complaints about 317 numbers. The most common named subject was impostor calls (people pretending to be a government agency, a business or family): 16% of complaints, 82% of them recorded messages. Across all subjects, 65% of callers who answered the question said the call was a robocall.
When do 317 spam calls happen?
33% of the complaints that give a call time describe calls between 10am and 1pm, and 95% came on weekdays, most often on Thursday. Times are as consumers reported them.
Are calls from 317 numbers really local?
Not necessarily. 79% of the FTC complaints about 317 numbers came from people whose own phone number also starts with 317, and 82% from Indiana. Calls that look local to the person receiving them are the signature of neighbor spoofing: robocallers display a number from your own area code because you're more likely to answer.
Are 317 robocalls increasing?
In the four weeks to Oct 15, consumers filed 608 FTC complaints about 317 numbers, 24% fewer than the four weeks before.
How do I report a 317 scam call in Indiana?
Report unwanted sales calls and robocalls to the FTC at donotcall.gov, and scams to ReportFraud.ftc.gov. The FCC takes complaints at consumercomplaints.fcc.gov. In Indiana, the Indiana Attorney General also handles consumer complaints about scam calls. Reports feed the public data this page is built from.
Overlay and nearby area codes
Sources: FTC Do Not Call complaints (unverified consumer reports), published every weekday and available here from Jul 24; FCC Consumer Complaint Data, public record, imported nightly; NANPA numbering records. A number appearing here means consumers reported calls that displayed it. Caller ID can be spoofed.