Area codes · +1
Area code 861
Area code 861 covers Peoria, Illinois. We hold 10 allocated blocks for it across 3 rate centres, split 0% mobile, 25% landline and 75% VoIP.
The other area codes laid over 861
Area code 861 does not have Peoria to itself. 1 other code — 309 — 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.
3095,413 blocks, 171 rate centres, mostly mobile
Each holds its own blocks and its own carrier mix, so a 861 number and a 309 number from the same street can report different line types. Filtering Peoria by area code needs all 2 of them.
861 is not confined to Peoria itself: its blocks sit across 3 rate centres, named in the table below.
Illinois is split across 17 area codes — 224, 618, 708, 815, 217, 861 and others. By allocated blocks 861 is the 17th largest of them, holding 0% of the Illinois total.
Where 861 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 861 |
|---|---|---|
| Peoria | 6 | 60% |
| Moline | 2 | 20% |
| Rockisland | 2 | 20% |
Carriers holding the most 861 blocks
Exiant Communications Llc6 blocks
Intrado Communications, Llc2 blocks
Ahoi Llc2 blocks
Exiant Communications Llc alone holds 60% of every block in 861, which is unusually concentrated for an area code.
These are original allocations. A number keeps its digits and its block when its subscriber moves network, so a ported 861 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 861 number, or run a whole list through the free cleaner — neither uploads anything.
Common questions
Where is area code 861?
Area code 861 covers Peoria, Illinois. It is not the only code there: 309 is an overlay on the same rate centres, so a Peoria, Illinois number can start with any of them.
Is a 861 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 861 the split runs 0% mobile, 25% landline and 75% VoIP, so VoIP is the most likely single answer.
Which carriers hold 861 numbers?
The largest holders are Exiant Communications Llc, Intrado Communications, Llc, Ahoi Llc. That is the carrier the block was allocated to, which is not necessarily the network a given number sits on today.
How many 861 numbers are there?
The code holds 10 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 861 covers on the order of 10,000 possible numbers — most of which have never been issued to anyone.