Area codes · +1
Area code 319
Area code 319 is centred on Cedar Rapids, Iowa. We hold 3,744 allocated blocks for it across 137 rate centres, split 47% mobile, 42% landline and 11% VoIP.
The towns inside area code 319
Area code 319 is not a city code. It covers 137 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 319 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 319 is the 4th largest of them, holding 20% of the Iowa total.
Where 319 numbers are concentrated
NANPA truncates rate-centre names to ten characters and drops the spaces, which is why Cedar Rpds and Ft Madison are shortened. Names are reproduced as recorded rather than expanded — the abbreviation is the key the block data is filed under.
| Rate centre | Blocks | Share of 319 |
|---|---|---|
| Cedar Rpds | 743 | 20% |
| Waterloo | 366 | 10% |
| Iowa City | 358 | 10% |
| Burlington | 142 | 4% |
| Ft Madison | 94 | 3% |
| Cedarfalls | 92 | 2% |
| Anamosa | 74 | 2% |
| Keokuk | 74 | 2% |
| Mtpleasant | 66 | 2% |
| Oelwein | 64 | 2% |
| Washington | 64 | 2% |
| Indepndnce | 61 | 2% |
| Waverly | 54 | 1% |
| Vinton | 53 | 1% |
| Keosauqua | 52 | 1% |
| Brighton | 49 | 1% |
| Columbsjct | 49 | 1% |
| Parkersbg | 49 | 1% |
| Mt Vernon | 41 | 1% |
| Center Pt | 39 | 1% |
| Monticello | 34 | 1% |
| Central Cy | 32 | 1% |
| Wapello | 31 | 1% |
| Coggon | 27 | 1% |
113 further rate centres in 319 hold fewer blocks than these.
Carriers holding the most 319 blocks
Onvoy567 blocks
Verizon Wireless340 blocks
United States Cellular325 blocks
Qwest Corporation292 blocks
AT&T Wireless187 blocks
T-Mobile USA, Inc.169 blocks
The largest holder, Onvoy, has 15% of the code.
These are original allocations. A number keeps its digits and its block when its subscriber moves network, so a ported 319 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 319 number, or run a whole list through the free cleaner — neither uploads anything.
Common questions
Where is area code 319?
Area code 319 is centred on Cedar Rapids, Iowa and spans 137 rate centres, so it covers a region rather than a town.
Is a 319 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 319 the split runs 47% mobile, 42% landline and 11% VoIP, so mobile is the most likely single answer.
Which carriers hold 319 numbers?
The largest holders are Onvoy, Verizon Wireless, United States Cellular. That is the carrier the block was allocated to, which is not necessarily the network a given number sits on today.
How many 319 numbers are there?
The code holds 3,744 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 319 covers on the order of 3,744,000 possible numbers — most of which have never been issued to anyone.