Area codes · +1
Area code 464
Area code 464 is centred on Oak Forest, Illinois. We hold 1,143 allocated blocks for it across 24 rate centres, split 73% mobile, 2% landline and 25% VoIP.
The other area codes laid over 464
Area code 464 does not have Oak Forest, Illinois to itself. 1 other code — 708 — 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.
7085,868 blocks, 37 rate centres, mostly mobile
Each holds its own blocks and its own carrier mix, so a 464 number and a 708 number from the same street can report different line types. Filtering Oak Forest, Illinois by area code needs all 2 of them.
464 is not confined to Oak Forest, Illinois itself: its blocks sit across 24 rate centres, named in the table below.
Illinois is split across 17 area codes — 224, 618, 708, 815, 217, 464 and others. By allocated blocks 464 is the 15th largest of them, holding 2% of the Illinois total.
Where 464 numbers are concentrated
NANPA truncates rate-centre names to ten characters and drops the spaces, which is why Chicagohts and Calumet Cy 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 464 |
|---|---|---|
| Oak For So | 222 | 19% |
| Forest | 218 | 19% |
| La Grange | 202 | 18% |
| Cicero | 96 | 8% |
| Blueisland | 86 | 8% |
| Chicagohts | 61 | 5% |
| Harvey | 26 | 2% |
| Orland | 25 | 2% |
| Maywood | 22 | 2% |
| Palos Park | 22 | 2% |
| Bellwood | 21 | 2% |
| Calumet Cy | 17 | 1% |
| Oak Lawn | 17 | 1% |
| Beecher | 11 | 1% |
| Berwyn | 11 | 1% |
| Lansing | 11 | 1% |
| Mokena | 11 | 1% |
| Riverdale | 11 | 1% |
| Summit | 11 | 1% |
| Tinleypark | 11 | 1% |
| Crete | 9 | 1% |
| Willow Spg | 9 | 1% |
| Peotone | 7 | 1% |
| Thornton | 6 | 1% |
Carriers holding the most 464 blocks
AT&T Wireless655 blocks
Onvoy191 blocks
Verizon Wireless59 blocks
T-Mobile Usa, Inc.56 blocks
Fractel, Llc40 blocks
Onvoy Spectrum22 blocks
AT&T Wireless alone holds 57% of every block in 464, 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 464 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 464 number, or run a whole list through the free cleaner — neither uploads anything.
Common questions
Where is area code 464?
Area code 464 covers Oak Forest, Illinois. It is not the only code there: 708 is an overlay on the same rate centres, so a Oak Forest, Illinois number can start with any of them.
Is a 464 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 464 the split runs 73% mobile, 2% landline and 25% VoIP, so mobile is the most likely single answer.
Which carriers hold 464 numbers?
The largest holders are AT&T Wireless, Onvoy, Verizon Wireless. That is the carrier the block was allocated to, which is not necessarily the network a given number sits on today.
How many 464 numbers are there?
The code holds 1,143 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 464 covers on the order of 1,143,000 possible numbers — most of which have never been issued to anyone.