Area code 563 – Iowa
563 has served Iowa since 2001, split from 319. 388 of its 786 number blocks are allocated (49%). No carrier dominates: Other CLEC / VoIP 32.0%, Lumen / CenturyLink 18.3%, Windstream 15.5%. Spam complaints are comparatively rare: 352 in the 33 days to 30 October 2026, 277th of the 422 codes with five or more complaints.
- State
- Iowa
- In service since
- 2001
- Time zone
- Central
- Shares area with
- No overlay
Who holds 563 number blocks
Share of the 388 assigned NXX blocks (49.4% of the 786 possible), across 74 carriers. This is share of number blocks, not of subscribers.
- Other CLEC / VoIP39.2%
- Lumen18.3%
- Windstream16.2%
- T-Mobile6.7%
- AT&T6.2%
- Verizon5.4%
- Onvoy3.9%
- Charter1.3%
- Bandwidth1%
- Telnyx0.5%
- Dish0.5%
- Comcast0.3%
- Vonage0.3%
- Twilio0.3%
Spam complaints naming 563
FTC Do Not Call complaints where the caller ID was a 563 number, 28 Sep – 30 Oct 2026 (33 days). Caller IDs on spam calls are frequently spoofed, so these are complaints about the code, not calls proven to originate in it.
Rate centers in 563
NANPA allocates number blocks to rate centers and records their names abbreviated to ten characters, so these are NANPA's codes rather than place names – CHAMPAURBN is Champaign-Urbana, NWYRCYZN01 is a New York City zone. We show them unchanged instead of guessing at the full names. Showing the largest 5 of 109.
Timeline
- 2001 563 goes into service, split from or overlaid on 319.
More about 563
Separate pages for the questions that need their own answer: what time it is there, what the complaint data says, who holds the number blocks, and how the code compares with the one it shares its area with.
Frequently asked about 563
What state is area code 563?
Iowa.
Is a call from 563 a scam?
Not by itself. 563 drew 352 FTC complaints in the 33 days to 30 October 2026, 277th of 422 ranked codes – mid-pack or lower. Spam callers spoof caller IDs, so the only useful check is the full number.
Which carrier owns 563 numbers?
Other CLEC / VoIP holds the largest share of assigned number blocks at 32.0%. The rest is spread across 3 other carriers. This is share of number blocks, not of subscribers – people keep their numbers when they switch carriers.
Do I need to dial 10 digits in 563?
No. NANPA records 563 as 7-digit dialing for local calls.
Sources and verification
- NANPA – NPA Database (npa_report.csv), file date 11/01/2026, retrieved Nov 1, 2026
- NANPA – CO Code Assignment Records, All States (utilized), file updated 11/01/2026, retrieved Nov 1, 2026
- FTC – Do Not Call Reported Calls Data, 25 daily files 28 Sep – 30 Oct 2026, retrieved Nov 1, 2026
NANPA dialing note for this code: “7D”. Reviewed by the data desk. Spotted an error? Request a correction.