Area codes · +1
Area code 320
Area code 320 is centred on Minnesota. We hold 3,341 allocated blocks for it across 145 rate centres, split 33% mobile, 44% landline and 23% VoIP.
The towns inside area code 320
Area code 320 is not a city code. It covers 145 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 320 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.
Minnesota is split across 7 area codes — 507, 218, 612, 320, 651, 763 and others. By allocated blocks 320 is the 4th largest of them, holding 14% of the Minnesota total.
Where 320 numbers are concentrated
NANPA truncates rate-centre names to ten characters and drops the spaces, which is why St Cloud and Little Fls 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 320 |
|---|---|---|
| St Cloud | 482 | 14% |
| Willmar | 99 | 3% |
| Alexandria | 96 | 3% |
| Little Fls | 93 | 3% |
| Braham | 76 | 2% |
| Hutchinson | 74 | 2% |
| Rush City | 73 | 2% |
| Hinckley | 70 | 2% |
| Glencoe | 68 | 2% |
| Litchfield | 67 | 2% |
| Pine City | 66 | 2% |
| Morris | 65 | 2% |
| Ogilvie | 63 | 2% |
| Montevideo | 57 | 2% |
| Mora | 56 | 2% |
| Benson | 55 | 2% |
| Sandstone | 52 | 2% |
| Saukcentre | 48 | 1% |
| Olivia | 47 | 1% |
| Granitefls | 43 | 1% |
| Ortonville | 43 | 1% |
| Glenwood | 42 | 1% |
| St Joseph | 42 | 1% |
| Clear Lake | 41 | 1% |
121 further rate centres in 320 hold fewer blocks than these.
Carriers holding the most 320 blocks
Onvoy698 blocks
Verizon Wireless295 blocks
AT&T Wireless267 blocks
Qwest Corporation173 blocks
Bandwidth149 blocks
T-Mobile USA, Inc.145 blocks
The largest holder, Onvoy, has 21% of the code.
These are original allocations. A number keeps its digits and its block when its subscriber moves network, so a ported 320 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 320 number, or run a whole list through the free cleaner — neither uploads anything.
Common questions
Where is area code 320?
Area code 320 is centred on Minnesota and spans 145 rate centres, so it covers a region rather than a town.
Is a 320 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 320 the split runs 33% mobile, 44% landline and 23% VoIP, so landline is the most likely single answer.
Which carriers hold 320 numbers?
The largest holders are Onvoy, Verizon Wireless, AT&T Wireless. That is the carrier the block was allocated to, which is not necessarily the network a given number sits on today.
How many 320 numbers are there?
The code holds 3,341 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 320 covers on the order of 3,341,000 possible numbers — most of which have never been issued to anyone.