The 563 area code covers Davenport, Dubuque and 99 more places in Iowa.
Area code 563 is in Iowa, on Central Time. In the 563 area, phone numbers are given out most in Scott County, then Dubuque and Clinton counties. It has been in service since March 25, 2001.
- Where
- 8 counties in Iowa, mostly Scott County, Dubuque County and Clinton County
- Time zone
- Central Time
- In service since
- March 25, 2001
- Shares its area with
- No other area code
- Prefixes in use
- 388
- How to dial
- Local calls inside 563 can still be dialed with just 7 digits.
Find out who called you from a 563 number.
Enter the full 10-digit number to see who it is listed to and the city and state on the listing. It is the same free check as our who called me lookup. To see only the caller ID name on the number, use our free CNAM lookup. To see whether it is a mobile, a landline or a VoIP line, use our free VoIP checker. To see which carrier a (563) number is on today, use our free carrier lookup.
Works for US & Canada numbers. Enter a 10-digit number, e.g. (415) 555-0132.
Free & rate-limited. No signup required to try.
Davenport holds 20% of the phone prefixes in area code 563.
A prefix is the three digits after the area code, and NANPA assigns each one to a town. Counting the 388 prefixes in use shows where 563 numbers are actually given out.
- Davenport79 prefixes, 20%
- Dubuque36 prefixes, 9%
- Muscatine19 prefixes, 5%
- Clinton18 prefixes, 5%
- De Witt12 prefixes, 3%
- Decorah11 prefixes, 3%
- Manchester6 prefixes, 2%
- Cresco5 prefixes, 1%
Also served: Waukon, Tipton, West Union and Lansing and 89 smaller places.
Windstream holds the most phone number prefixes in area code 563: 60 of 388.
NANPA, which runs the North American numbering plan, assigns each prefix (the three digits after the area code) to one carrier. Here is how the 388 prefixes in use in 563 divide between carriers; holders this page does not name are grouped as other carriers.
| Carrier | Prefixes | Share |
|---|---|---|
| WindstreamLandline company | 60 | 15% |
| Qwest (Lumen)Lumen's landline company | 54 | 14% |
| UScellularMobile network | 33 | 9% |
| T-MobileMobile network | 25 | 6% |
| MediacomCable company's phone service | 21 | 5% |
| AT&T MobilityMobile network | 18 | 5% |
| 59 other carriers | 177 | 46% |
71% of these prefixes are pooled, which means the blocks of 1,000 numbers inside them can belong to other carriers. Any number can also have been moved to another carrier since, so this shows who holds the prefixes, not who serves a given number.
Want the carrier of one exact number? Our free carrier lookup checks it, because numbers move between carriers.
Source: NANPA central office code assignments, October 1, 2026.
563 has covered the same ground since 2001.
2001
563 starts on March 25, 2001, split off from 319.
A 563 number on your screen can still be a scam, because caller ID is easy to fake.
- Let an unknown call go to voicemail. A real caller leaves a message; a robocaller usually does not.
- Look the number up with the box above before you call back, because calling back tells a robocaller your line is live.
- Hang up on anyone who wants gift cards, crypto or a wire transfer, or asks you to read out a code that was just texted to you.
- Report unwanted robocalls at reportfraud.ftc.gov, or paste a suspicious message into our free scam checker.
The area codes closest to 563 are 319, 608 and 641.
This list measures the distance between the centres of each area, across state lines, and shows codes that share one area together.
Iowa has 4 other area codes.
These are the questions people ask most about area code 563.
Where is area code 563?
563 covers Davenport, Dubuque, Muscatine and Clinton and 97 more places in Iowa. In the 563 area, phone numbers are given out most in Scott County, then Dubuque and Clinton counties.
What state is area code 563 in?
Iowa. 563 is an Iowa area code on Central Time.
What cities use area code 563?
The places holding the most 563 prefixes are Davenport, Dubuque, Muscatine, Clinton, De Witt, Decorah, Manchester and Cresco, out of 101 places in all. The count comes from NANPA's prefix assignments as of October 1, 2026.
Which phone company owns area code 563?
No single phone company owns 563. NANPA's records show Windstream holds the most 563 prefixes, 60 of 388, followed by Qwest (Lumen) and UScellular. Numbers move between carriers, so check one exact number with a carrier lookup.
What time zone is area code 563 in?
563 is on Central Time.
When did area code 563 start?
563 went into service on March 25, 2001, when it was split off from 319.
How do I dial a 563 number?
Local calls inside 563 can still be dialed with just 7 digits.
Is 563 a toll-free number?
No. 563 is a regular area code for Davenport and Dubuque in Iowa, not a toll-free one. The toll-free codes in North America are 800, 833, 844, 855, 866, 877 and 888.
What area codes are near 563?
The closest are 319 (Cedar Rapids, Iowa), 608/353 (Madison, Wisconsin), 641 (Mason City, Iowa) and 815/779 (Rockford, Illinois), measured between the centres of each area.
Who called me from a 563 number?
Enter the full 10-digit number in the lookup above. It returns the listed owner where there is a public record, where the number is registered, and whether it is a mobile, a landline or a VoIP line.
Is area code 563 a scam?
563 is a real Iowa area code, so the code itself is not a warning sign. Scam callers fake local-looking numbers on purpose, so judge the call by what the caller asks for, and look the number up before calling back.
Put this lookup on your site: our free area code widget takes two lines of code and shows any US area code's state, time zone and local time.
Source: NANPA, the North American Numbering Plan Administrator: its area code database and prefix assignments, as of October 1, 2026.