Illinois area code
Area code 224
224 is a Illinois area code covering Northbrook, Arlington Heights and Des Plaines. Check a 224 number below to see if it is mobile, landline or VoIP, and which carrier it is with today.
Verdicts describe reachability. They are not compliance checks.
- State
- Illinois
- Exchanges in use
- 595
- Thousands-blocks assigned
- 5,620
- Carriers holding numbers
- 40
An exchange is the three digits after the area code, 10,000 numbers. A thousands-block is 1,000 of them, assigned to a carrier on its own.
Rate centres in 224
A rate centre is the local area a number belongs to. Names are as NANPA files them, often abbreviated. The 12 with the most exchanges, of 41.
| Rate centre (as filed) | Exchanges |
|---|---|
| NORTHBROOK | 72 |
| ARLIGTNHTS | 70 |
| DESPLAINES | 48 |
| ELGIN | 44 |
| WAUKEGAN | 38 |
| ALGONQUIN | 37 |
| DEERFIELD | 20 |
| BARRINGTON | 19 |
| ELK GROVE | 18 |
| WHEELING | 15 |
| GLENVIEW | 14 |
| SKOKIE | 13 |
Carriers 224 numbers were assigned to
The carrier NANPA lists for each exchange and thousands-block. A number can be ported to another carrier after it is assigned, so check the number itself to see its carrier today.
How a port changes the carrier on your list
| Carrier (as filed) | Exchanges | Thousands-blocks |
|---|---|---|
| T-MOBILE USA, INC. | 138 | 1,162 |
| NEW CINGULAR WIRELESS PCS, LLC - IL | 93 | 814 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 76 | 810 |
| ONVOY, LLC | 67 | 893 |
| ILLINOIS BELL TEL CO | 34 | 152 |
| FRACTEL, LLC | 29 | 29 |
| LEVEL 3 COMMUNICATIONS, LLC - IL | 19 | 160 |
| TELEPORT COMMUNICATIONS AMERICA, LLC - IL | 19 | 124 |
| BANDWIDTH.COM CLEC, LLC - IL | 17 | 294 |
| COMCAST IP PHONE, LLC | 16 | 144 |
Area codes that share these places
These area codes have numbers in at least half of 224's rate centres. Usually that is an overlay, added when the first area code ran short of numbers.
847
Questions about this area code
Where is area code 224?
224 is a Illinois area code covering Northbrook, Arlington Heights and Des Plaines. NANPA's report lists 595 exchanges in use across 41 rate centres.
Is 224 a mobile or a landline area code?
Both. An area code doesn't decide the line type: mobile, landline and VoIP numbers all use 224, and numbers move between carriers. Check the number itself to see what it is today.
Which area codes overlay 224?
847 has numbers in at least half of the same places as 224, so a new number there can get any of these area codes.
Can you tell me who owns a 224 number?
No. NumberLookup shows whether a number is valid, its line type, its carrier and its region, never the person or business behind it.
Source: NANPA's public central office code and thousands-block reports, refreshed weekly. Carriers are the ones the numbers were assigned to, not necessarily today's, and never the person who uses a number.
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