Area codes · +1
Area code 573
Area code 573 is centred on Columbia, Missouri. We hold 6,496 allocated blocks for it across 216 rate centres, split 39% mobile, 42% landline and 19% VoIP.
The other area codes laid over 573
Area code 573 does not have Columbia to itself. 1 other code — 235 — serves the same rate centres, laid over the same ground rather than dividing it. That is an overlay: a new code added when the old one ran out of numbers, covering the same streets. Two neighbours can hold different area codes, so the code says roughly when a number was issued rather than where it sits.
235293 blocks, 21 rate centres, mostly mobile
Each holds its own blocks and its own carrier mix, so a 573 number and a 235 number from the same street can report different line types. Filtering Columbia by area code needs all 2 of them.
573 is not confined to Columbia itself: its blocks sit across 216 rate centres, named in the table below.
Missouri is split across 9 area codes — 573, 816, 314, 417, 636, 660 and others. By allocated blocks 573 is the largest of them, holding 20% of the Missouri total.
Where 573 numbers are concentrated
NANPA truncates rate-centre names to ten characters and drops the spaces, which is why Jeffersncy and Poplar Blf 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 573 |
|---|---|---|
| Columbia | 431 | 7% |
| Jeffersncy | 275 | 4% |
| Capegirard | 264 | 4% |
| Farmington | 156 | 2% |
| Poplar Blf | 144 | 2% |
| Birch Tree | 143 | 2% |
| Hannibal | 132 | 2% |
| Rolla | 121 | 2% |
| Lkozkosbch | 117 | 2% |
| Fulton | 115 | 2% |
| Mexico | 92 | 1% |
| Sikeston | 89 | 1% |
| Perryville | 88 | 1% |
| Flat River | 77 | 1% |
| Camdenton | 75 | 1% |
| Kennett | 72 | 1% |
| Dexter | 66 | 1% |
| Cuba | 65 | 1% |
| Versailles | 65 | 1% |
| Jackson | 56 | 1% |
| Bowlnggren | 55 | 1% |
| Fredercktn | 55 | 1% |
| Potosi | 54 | 1% |
| Stegnvieve | 54 | 1% |
192 further rate centres in 573 hold fewer blocks than these.
Carriers holding the most 573 blocks
AT&T Wireless1,158 blocks
Onvoy912 blocks
Southwestern Bell568 blocks
Bandwidth294 blocks
Verizon Wireless271 blocks
T-Mobile Usa, Inc.217 blocks
The largest holder, AT&T Wireless, has 18% of the code.
These are original allocations. A number keeps its digits and its block when its subscriber moves network, so a ported 573 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 573 number, or run a whole list through the free cleaner — neither uploads anything.
Common questions
Where is area code 573?
Area code 573 covers Columbia, Missouri. It is not the only code there: 235 is an overlay on the same rate centres, so a Columbia, Missouri number can start with any of them.
Is a 573 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 573 the split runs 39% mobile, 42% landline and 19% VoIP, so landline is the most likely single answer.
Which carriers hold 573 numbers?
The largest holders are AT&T Wireless, Onvoy, Southwestern Bell. That is the carrier the block was allocated to, which is not necessarily the network a given number sits on today.
How many 573 numbers are there?
The code holds 6,496 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 573 covers on the order of 6,496,000 possible numbers — most of which have never been issued to anyone.