Area codes · +1
Area code 217
Area code 217 is centred on Champaign, Illinois. We hold 5,478 allocated blocks for it across 265 rate centres, split 37% mobile, 48% landline and 15% VoIP.
The other area codes laid over 217
Area code 217 does not have Champaign, Illinois to itself. 1 other code — 447 — 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.
4471,453 blocks, 119 rate centres, mostly mobile
Each holds its own blocks and its own carrier mix, so a 217 number and a 447 number from the same street can report different line types. Filtering Champaign, Illinois by area code needs all 2 of them.
217 is not confined to Champaign, Illinois itself: its blocks sit across 265 rate centres, named in the table below.
Illinois is split across 17 area codes — 224, 618, 708, 815, 217, 309 and others. By allocated blocks 217 is the 5th largest of them, holding 8% of the Illinois total.
Where 217 numbers are concentrated
NANPA truncates rate-centre names to ten characters and drops the spaces, which is why Quincy and Jacksonvl 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 217 |
|---|---|---|
| Champaurbn | 527 | 10% |
| Springfld | 502 | 9% |
| Decatur | 285 | 5% |
| Danville | 187 | 3% |
| Quincy | 180 | 3% |
| Jacksonvl | 156 | 3% |
| Mattoon | 134 | 2% |
| Lincoln | 93 | 2% |
| Charleston | 82 | 1% |
| Effingham | 79 | 1% |
| Marshall | 57 | 1% |
| Litchfield | 52 | 1% |
| Taylorvl | 46 | 1% |
| Chatham | 44 | 1% |
| Rantoul | 41 | 1% |
| Pittsfield | 40 | 1% |
| Rochester | 39 | 1% |
| Gibsoncity | 38 | 1% |
| Paris | 37 | 1% |
| Carthage | 34 | 1% |
| Beardstown | 33 | 1% |
| Hoopeston | 33 | 1% |
| Mount Zion | 33 | 1% |
| Winchester | 32 | 1% |
241 further rate centres in 217 hold fewer blocks than these.
Carriers holding the most 217 blocks
Onvoy991 blocks
AT&T Wireless595 blocks
Illinois Bell422 blocks
Verizon Wireless338 blocks
Frontier North, Inc.290 blocks
T-Mobile Usa, Inc.262 blocks
The largest holder, Onvoy, 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 217 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 217 number, or run a whole list through the free cleaner — neither uploads anything.
Common questions
Where is area code 217?
Area code 217 covers Champaign, Illinois. It is not the only code there: 447 is an overlay on the same rate centres, so a Champaign, Illinois number can start with any of them.
Is a 217 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 217 the split runs 37% mobile, 48% landline and 15% VoIP, so landline is the most likely single answer.
Which carriers hold 217 numbers?
The largest holders are Onvoy, AT&T Wireless, Illinois Bell. That is the carrier the block was allocated to, which is not necessarily the network a given number sits on today.
How many 217 numbers are there?
The code holds 5,478 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 217 covers on the order of 5,478,000 possible numbers — most of which have never been issued to anyone.