319 Area Code: Cedar Rapids, Iowa
Area code 319 serves Cedar Rapids, Iowa City and Waterloo, Iowa in the Central time zone, in service since 1947. Consumers have filed 4,978 unwanted-call complaints against 3,959 different 319 numbers, 434 of them with the FTC in the last 30 days. Look up the exact number that called you below.
Area code 319 at a glance
- State
- Iowa
- Main cities
- Cedar Rapids, Iowa City, Waterloo, Burlington, Cedar Falls + 131 more
- Counties
- Linn County, Johnson County, Black Hawk County, Des Moines County + 20 more
- Local time
- —Central
- In service since
- 1947
- Codes split off
- 563 (2001)
- Local dialing
- 10 digits (area code + number)
- Exchanges
- 137 rate centers, 565 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 319 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 319 numbers are about
1,157 FTC Do Not Call complaints about 319 numbers since Jul 24. The most common named subject is debt-relief pitches, at 22% of complaints (92% of those were recorded messages). Overall, 66% of callers who answered said the call was a robocall.
FTC complaint subjects
- Other / unspecified49343%
- Debt reduction25422%
- Dropped call / no message1099%
- Medical & prescriptions999%
- No subject given706%
- Impostor (government, business, family)635%
- Warranties & protection plans303%
FCC complaints by call type, last 2 years
- Prerecorded Voice10457%
- Live Voice4927%
- Text Message2815%
15% of recent FCC complaints about 319 numbers are about text messages, not calls.
When 319 spam calls come in
31% of complaints that give a call time describe calls between 12pm and 3pm. 92% came Monday to Friday, most on Wednesdays, 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?
433 FTC complaints about 319 numbers in the last four weeks, up 31% on the four weeks before. FCC complaints about 319 numbers peaked in 2018 (811); 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
55% of the FTC complaints about 319 numbers came from Iowa residents, but only 46% from people with 319 numbers themselves. The calls are mostly regional rather than aimed at 319 phones specifically.
Where complainants live
- Iowa63655%
- California524%
- Florida403%
- Missouri313%
- Texas293%
What people with 319 numbers report
People whose own number starts with 319 filed 1,125 FTC complaints since Jul 24. 48% were about calls showing another 319 number. The most common named subject was debt-relief pitches.
Area codes on the calls they reported
- 319 (same code)53748%
- 833 (toll-free)535%
- 877 (toll-free)373%
- 515363%
- 888 (toll-free)343%
Likely campaigns using 319 numbers
Groups of numbers that drew the same FTC complaint in the same pattern over the last 60 days. The grouping is statistical and doesn't identify who is calling.
Busiest 319 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 |
|---|---|---|---|---|
| (319) 422-xxxx | 26 | 23 | Onvoy (Sinch) | Parkersburg |
| (319) 224-xxxx | 13 | 13 | Windstream | Troy Mills |
| (319) 299-xxxxcampaign | 13 | 12 | Windstream | Belle Plaine |
| (319) 410-xxxx | 12 | 11 | Aureon Communications, LLC | Oelwein |
| (319) 382-xxxx | 12 | 10 | Nuso, LLC | Cedar Rapids |
Carriers operating in 319
NANPA has assigned 565 319 prefixes (NPA-NXX central-office codes) across 137 rate centers: 24% to wireless carriers, 74% to landline and VoIP operators; 69% are pooled blocks shared by several carriers. 2 prefixes were assigned in the last 12 months (newest 2026-03-19). 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 |
|---|---|---|---|---|
| Qwest (CenturyLink / Lumen) | Incumbent landline (ILEC) | 99(18%) | 19 | 2012-07-10 |
| Verizon Wireless (Cellco Partnership) | Wireless | 39(7%) | 15 | 2025-09-03 |
| T-Mobile USA | Wireless | 39(7%) | 14 | 2025-09-04 |
| UScellular | Wireless | 39(7%) | 12 | 2023-12-11 |
| Windstream | Incumbent landline (ILEC) | 37(7%) | 33 | 2015-06-25 |
| Mcc Telephony LLC | Competitive / VoIP (CLEC) | 33(6%) | 29 | 2021-04-12 |
| Onvoy (Sinch) | Competitive / VoIP (CLEC) | 22(4%) | 15 | 2024-06-18 |
| Windstream | Incumbent landline (ILEC) | 21(4%) | 15 | 2018-03-08 |
| Ton80 Communications, LLC | Competitive / VoIP (CLEC) | 17(3%) | 17 | 2022-03-25 |
| PAETEC (Windstream) | Competitive / VoIP (CLEC) | 16(3%) | 6 | 2024-02-15 |
| AT&T Mobility (New Cingular Wireless PCS) | Wireless | 15(3%) | 9 | 2022-02-22 |
| Level 3 (Lumen) | Competitive / VoIP (CLEC) | 12(2%) | 12 | 2024-11-14 |
Largest rate centers (exchanges) by prefixes: Cedar Rapids (110), Iowa City (50), Waterloo (47), Burlington (19), Cedar Falls (13), Fort Madison (11), Mount Pleasant (10), Washington (10), Anamosa (9), Keokuk (9). Source: NANPA Central Office Code Utilized Assignments (public, refreshed weekly).
What to do about calls from 319 numbers
Before you call back
- Debt reduction is the top named complaint here. Don't pay upfront fees for debt relief; the FTC's Telemarketing Sales Rule bans them. Talk to your lender or a nonprofit credit counselor instead. Read about debt-relief robocalls.
- Look up the full number above. A missed call from 319 with no voicemail is usually a robocall; anyone who needs you will leave a message.
- Block repeat callers: iPhone, Android, or your carrier's free filter (Verizon, AT&T, T-Mobile).
Report it in Iowa
- 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: Iowa Attorney General.
- Iowa does not run its own Do Not Call registry and has not formally adopted the federal list as a state list. The federal National Do Not Call Registry at donotcall.gov still applies to you — register there, free, and it never expires.
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 319: questions answered from the data
Where is area code 319?
Area code 319 serves Cedar Rapids, Iowa City and Waterloo, Iowa, covering Linn County, Johnson County and Black Hawk County and 21 more counties. It has been in service since 1947.
What time zone is area code 319 in?
Area code 319 is in the Central time zone (UTC−6, or UTC−5 during daylight saving time). The current local time is shown at the top of this page.
What are calls from 319 numbers usually about?
Since Jul 24, consumers filed 1,157 FTC Do Not Call complaints about 319 numbers. The most common named subject was debt-relief pitches: 22% of complaints, 92% of them recorded messages. Across all subjects, 66% of callers who answered the question said the call was a robocall.
When do 319 spam calls happen?
31% of the complaints that give a call time describe calls between 12pm and 3pm, and 92% came on weekdays, most often on Wednesday. Times are as consumers reported them.
Are calls from 319 numbers really local?
Not necessarily. 55% of the FTC complaints about 319 numbers came from Iowa residents, but only 46% from people with 319 numbers themselves. The calls are mostly regional rather than aimed at 319 phones specifically.
Are 319 robocalls increasing?
In the four weeks to Oct 20, consumers filed 433 FTC complaints about 319 numbers, 31% more than the four weeks before.
How do I report a 319 scam call in Iowa?
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 Iowa, the Iowa Attorney General also handles consumer complaints about scam calls. Reports feed the public data this page is built from.
Other Iowa 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.