Area codes · +1
Area code 563
Area code 563 is centred on Davenport, Iowa. We hold 2,669 allocated blocks for it across 109 rate centres, split 47% mobile, 40% landline and 13% VoIP.
The towns inside area code 563
Area code 563 is not a city code. It covers 109 separate rate centres — billing areas, each its own local calling zone. The largest of them are named in the table below.
That matters twice over. A call between two 563 numbers is not necessarily a local call, because they can sit in different rate centres. And a code this wide narrows a subscriber to a region rather than a town.
Iowa is split across 5 area codes — 515, 712, 641, 319, 563. By allocated blocks 563 is the 5th largest of them, holding 14% of the Iowa total.
Where 563 numbers are concentrated
Rate-centre names are reproduced as NANPA records them. The agency truncates them to ten characters, so longer names appear shortened elsewhere on this site.
| Rate centre | Blocks | Share of 563 |
|---|---|---|
| Davenport | 577 | 22% |
| Dubuque | 285 | 11% |
| Clinton | 143 | 5% |
| Muscatine | 143 | 5% |
| De Witt | 126 | 5% |
| Decorah | 92 | 3% |
| Manchester | 62 | 2% |
| Cresco | 54 | 2% |
| Waukon | 51 | 2% |
| West Union | 50 | 2% |
| Maquoketa | 42 | 2% |
| Walcott | 37 | 1% |
| Lansing | 36 | 1% |
| Tipton | 36 | 1% |
| Dyersville | 29 | 1% |
| Sabula | 27 | 1% |
| Calmar | 26 | 1% |
| Bellevue | 21 | 1% |
| Low Moor | 21 | 1% |
| Fayette | 20 | 1% |
| Le Claire | 20 | 1% |
| Mcgregor | 20 | 1% |
| Cascade | 19 | 1% |
| Elkader | 19 | 1% |
85 further rate centres in 563 hold fewer blocks than these.
Carriers holding the most 563 blocks
Onvoy377 blocks
United States Cellular314 blocks
Verizon Wireless180 blocks
Qwest Corporation179 blocks
AT&T Wireless156 blocks
Windstream Iowa Communications, Inc. - North119 blocks
The largest holder, Onvoy, has 14% of the code.
These are original allocations. A number keeps its digits and its block when its subscriber moves network, so a ported 563 number still reports the carrier it started with. Closing that gap needs a live query against the routing database. How line type is derived.
Check a single 563 number, or run a whole list through the free cleaner — neither uploads anything.
Common questions
Where is area code 563?
Area code 563 is centred on Davenport, Iowa and spans 109 rate centres, so it covers a region rather than a town.
Is a 563 number a mobile or a landline?
It can be either, and the digits do not say which. North American mobile and landline numbers share the same ranges, so the answer comes from the carrier holding the block. In 563 the split runs 47% mobile, 40% landline and 13% VoIP, so mobile is the most likely single answer.
Which carriers hold 563 numbers?
The largest holders are Onvoy, United States Cellular, Verizon Wireless. That is the carrier the block was allocated to, which is not necessarily the network a given number sits on today.
How many 563 numbers are there?
The code holds 2,669 allocated blocks in our copy of the numbering plan. A block is 1,000 or 10,000 consecutive numbers depending on how deeply it has been pooled, so 563 covers on the order of 2,669,000 possible numbers — most of which have never been issued to anyone.