Illinois, United States
Central Time
11:49 AM
Area Code
224
State / Province
Illinois
Country
United States
Time Zone
Central Time
Area code 224 covers 41 cities and communities across Illinois, based on telephone company rate center data.
Use the E.164 format for clickable phone links (RFC 3966):
<a href="tel:+12245550100">+12245550100</a><a href="tel:+12245550199">+12245550199</a>Look up which exchange in Illinois a specific 224 number is homed to, and whether its block is wireline or wireless. See what a reverse lookup can establish before relying on the answer.
595 active prefixes in this area code, assigned as 6,160 thousands-blocks — pooling splits one prefix across several carriers, so each block is listed separately with the rate centre it is homed to, its carrier of record, and the switch that serves it.
Showing blocks 1–100 of 6,160
| NPA-NXX | Block | Rate centre | Type | Carrier (OCN) | Switch | LATA | LIR | Dates |
|---|---|---|---|---|---|---|---|---|
| 224-200 | 0 | Arlington Heights | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SCBGILRRGT1 | 358 | — | — |
| 224-200 | 1 | Arlington Heights | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SCBGILRRGT1 | 358 | — | — |
| 224-200 | 2 | Arlington Heights | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SCBGILRRGT1 | 358 | — | — |
| 224-200 | 3 | Arlington Heights | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SCBGILRRGT1 | 358 | — | — |
| 224-200 | 4 | Arlington Heights | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SCBGILRRGT1 | 358 | — | — |
| 224-200 | 5 | Arlington Heights | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SCBGILRRGT1 | 358 | — | — |
| 224-200 | 6 | Arlington Heights | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SCBGILRRGT1 | 358 | — | — |
| 224-200 | 7 | Arlington Heights | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SCBGILRRGT1 | 358 | — | — |
| 224-200 | 8 | Arlington Heights | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SCBGILRRGT1 | 358 | — | — |
| 224-200 | 9 | Arlington Heights | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SCBGILRRGT1 | 358 | — | — |
| 224-200 | A | Arlington Heights | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SCBGILRRGT1 | 358 | — | — |
| 224-201 | 0 | Arlington Heights | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SCBGILRRGT1 | 358 | — | — |
| 224-201 | 1 | Arlington Heights | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SCBGILRRGT1 | 358 | — | — |
| 224-201 | 2 | Arlington Heights | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SCBGILRRGT1 | 358 | — | — |
| 224-201 | 3 | Arlington Heights | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SCBGILRRGT1 | 358 | — | — |
| 224-201 | 4 | Arlington Heights | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SCBGILRRGT1 | 358 | — | — |
| 224-201 | 5 | Arlington Heights | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SCBGILRRGT1 | 358 | — | — |
| 224-201 | 6 | Arlington Heights | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SCBGILRRGT1 | 358 | — | — |
| 224-201 | 7 | Arlington Heights | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SCBGILRRGT1 | 358 | — | — |
| 224-201 | 8 | Arlington Heights | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SCBGILRRGT1 | 358 | — | — |
| 224-201 | 9 | Arlington Heights | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SCBGILRRGT1 | 358 | — | — |
| 224-201 | A | Arlington Heights | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SCBGILRRGT1 | 358 | — | — |
| 224-202 | 0 | Arlington Heights | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SCBGILRRGT1 | 358 | — | — |
| 224-202 | 1 | Arlington Heights | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SCBGILRRGT1 | 358 | — | — |
| 224-202 | 2 | Arlington Heights | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SCBGILRRGT1 | 358 | — | — |
| 224-202 | 3 | Arlington Heights | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SCBGILRRGT1 | 358 | — | — |
| 224-202 | 4 | Arlington Heights | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SCBGILRRGT1 | 358 | — | — |
| 224-202 | 5 | Arlington Heights | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SCBGILRRGT1 | 358 | — | — |
| 224-202 | 6 | Arlington Heights | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - IL (984E) | CHCGILWBXDZ | 358 | — | — |
| 224-202 | 7 | Arlington Heights | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - IL (984E) | CHCGILWBXDZ | 358 | — | — |
| 224-202 | 8 | Arlington Heights | Landline or VoIP | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL (7196) | ELK GROVE VILLAGE | 358 | — | — |
| 224-202 | 9 | Arlington Heights | Landline or VoIP | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL (7196) | ELK GROVE VILLAGE | 358 | — | — |
| 224-202 | A | Arlington Heights | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SCBGILRRGT1 | 358 | — | — |
| 224-203 | 0 | Northbrook | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL (6333) | RVDLILBDAMD | 358 | — | — |
| 224-203 | 1 | Northbrook | Wireless | T-MOBILE USA, INC. (6529) | ELGNILOTGT5 | 358 | — | — |
| 224-203 | 2 | Northbrook | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - IL (984E) | CHCGILWBXDZ | 358 | — | — |
| 224-203 | 3 | Northbrook | Wireless | T-MOBILE USA, INC. (6529) | ELGNILOTGT5 | 358 | — | — |
| 224-203 | 4 | Northbrook | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL (6333) | RVDLILBDAMD | 358 | — | — |
| 224-203 | 5 | Northbrook | Landline or VoIP | ONVOY, LLC (224C) | CHICAGO | 358 | — | — |
| 224-203 | 6 | Northbrook | Wireless | T-MOBILE USA, INC. (6529) | ELGNILOTGT5 | 358 | — | — |
| 224-203 | 7 | Northbrook | Wireless | T-MOBILE USA, INC. (6529) | ELGNILOTGT5 | 358 | — | — |
| 224-203 | 8 | Northbrook | Wireless | T-MOBILE USA, INC. (6529) | ELGNILOTGT5 | 358 | — | — |
| 224-203 | 9 | Northbrook | Wireless | T-MOBILE USA, INC. (6529) | ELGNILOTGT5 | 358 | — | — |
| 224-203 | A | Northbrook | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL (6333) | RVDLILBDAMD | 358 | — | — |
| 224-204 | 0 | Evanston | Landline or VoIP | ONVOY, LLC (224C) | CHICAGO | 358 | — | — |
| 224-204 | 1 | Evanston | Landline or VoIP | IP HORIZON LLC (515J) | — | 358 | — | — |
| 224-204 | 2 | Evanston | Landline or VoIP | ONVOY, LLC (224C) | CHICAGO | 358 | — | — |
| 224-204 | 3 | Evanston | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SCBGILRRGT1 | 358 | — | — |
| 224-204 | 4 | Evanston | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SCBGILRRGT1 | 358 | — | — |
| 224-204 | 5 | Evanston | Landline or VoIP | TELEPORT COMMUNICATIONS AMERICA, LLC - IL (7136) | OKBRILOAXEX | 358 | — | — |
| 224-204 | 6 | Evanston | Landline or VoIP | FIRST COMMUNICATIONS, LLC (460K) | CHCGILWUX6X | 358 | — | — |
| 224-204 | 7 | Evanston | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SCBGILRRGT1 | 358 | — | — |
| 224-204 | 8 | Evanston | Landline or VoIP | ACCESS ONE, INC. - IL (5447) | CHCGILDTKMD | 358 | — | — |
| 224-204 | 9 | Evanston | Landline or VoIP | TELNYX LLC (073H) | CHCGILWUJMD | 358 | — | — |
| 224-204 | A | Evanston | Landline or VoIP | ONVOY, LLC (224C) | CHICAGO | 358 | — | — |
| 224-205 | 0 | Northbrook | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL (6333) | RVDLILBDAMD | 358 | — | — |
| 224-205 | 1 | Northbrook | Landline or VoIP | IP HORIZON LLC (515J) | — | 358 | — | — |
| 224-205 | 2 | Northbrook | Wireless | T-MOBILE USA, INC. (6529) | ELGNILOTGT5 | 358 | — | — |
| 224-205 | 3 | Northbrook | Landline or VoIP | LEVEL 3 COMMUNICATIONS, LLC - IL (6115) | CHICAGO | 358 | — | — |
| 224-205 | 4 | Northbrook | Landline or VoIP | LEVEL 3 COMMUNICATIONS, LLC - IL (6115) | CHICAGO | 358 | — | — |
| 224-205 | 5 | Northbrook | Landline or VoIP | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL (7196) | ELK GROVE VILLAGE | 358 | — | — |
| 224-205 | 6 | Northbrook | Landline or VoIP | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL (7196) | ELK GROVE VILLAGE | 358 | — | — |
| 224-205 | 7 | Northbrook | Landline or VoIP | LEVEL 3 COMMUNICATIONS, LLC - IL (6115) | CHICAGO | 358 | — | — |
| 224-205 | 8 | Northbrook | Landline or VoIP | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL (7196) | ELK GROVE VILLAGE | 358 | — | — |
| 224-205 | 9 | Northbrook | Wireless | T-MOBILE USA, INC. (6529) | ELGNILOTGT5 | 358 | — | — |
| 224-205 | A | Northbrook | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL (6333) | RVDLILBDAMD | 358 | — | — |
| 224-206 | 0 | Libertyville | Landline or VoIP | ONVOY, LLC (224C) | CHICAGO | 358 | — | — |
| 224-206 | 1 | Libertyville | Landline or VoIP | FIRST COMMUNICATIONS, LLC (460K) | CHCGILWUX6X | 358 | — | — |
| 224-206 | 2 | Libertyville | Landline or VoIP | TERRA NOVA TELECOM INC. (145J) | — | 358 | — | — |
| 224-206 | 3 | Libertyville | Landline or VoIP | LEVEL 3 COMMUNICATIONS, LLC - IL (6115) | CHICAGO | 358 | — | — |
| 224-206 | 4 | Libertyville | Landline or VoIP | TELEPORT COMMUNICATIONS AMERICA, LLC - IL (7136) | ROLLING MEADOWS | 358 | — | — |
| 224-206 | 5 | Libertyville | Landline or VoIP | PEERLESS NETWORK OF ILLINOIS, LLC - IL (063E) | CHICAGO | 358 | — | — |
| 224-206 | 6 | Libertyville | Landline or VoIP | TELEPORT COMMUNICATIONS AMERICA, LLC - IL (7136) | ROLLING MEADOWS | 358 | — | — |
| 224-206 | 7 | Libertyville | Landline or VoIP | COMCAST IP PHONE, LLC (318J) | CHCGILNEXJX | 358 | — | — |
| 224-206 | 8 | Libertyville | Landline or VoIP | COMCAST IP PHONE, LLC (318J) | CHCGILNEXJX | 358 | — | — |
| 224-206 | 9 | Libertyville | Landline or VoIP | PEERLESS NETWORK OF ILLINOIS, LLC - IL (063E) | CHICAGO | 358 | — | — |
| 224-206 | A | Libertyville | Landline or VoIP | ONVOY, LLC (224C) | CHICAGO | 358 | — | — |
| 224-207 | 0 | Libertyville | Landline or VoIP | FIRST COMMUNICATIONS, LLC (460K) | CHCGILWUX6X | 358 | — | — |
| 224-207 | 1 | Libertyville | Landline or VoIP | FIRST COMMUNICATIONS, LLC (460K) | CHCGILWUX6X | 358 | — | — |
| 224-207 | 2 | Libertyville | Landline or VoIP | FIRST COMMUNICATIONS, LLC (460K) | CHCGILWUX6X | 358 | — | — |
| 224-207 | 3 | Libertyville | Landline or VoIP | FIRST COMMUNICATIONS, LLC (460K) | CHCGILWUX6X | 358 | — | — |
| 224-207 | 4 | Libertyville | Landline or VoIP | ONVOY, LLC (224C) | CHICAGO | 358 | — | — |
| 224-207 | 5 | Libertyville | Landline or VoIP | FIRST COMMUNICATIONS, LLC (460K) | CHCGILWUX6X | 358 | — | — |
| 224-207 | 6 | Libertyville | Landline or VoIP | FIRST COMMUNICATIONS, LLC (460K) | CHCGILWUX6X | 358 | — | — |
| 224-207 | 7 | Libertyville | Landline or VoIP | FIRST COMMUNICATIONS, LLC (460K) | CHCGILWUX6X | 358 | — | — |
| 224-207 | 8 | Libertyville | Landline or VoIP | LEVEL 3 COMMUNICATIONS, LLC - IL (6115) | CHICAGO | 358 | — | — |
| 224-207 | 9 | Libertyville | Landline or VoIP | FIRST COMMUNICATIONS, LLC (460K) | CHCGILWUX6X | 358 | — | — |
| 224-207 | A | Libertyville | Landline or VoIP | FIRST COMMUNICATIONS, LLC (460K) | CHCGILWUX6X | 358 | — | — |
| 224-208 | 0 | Bartlett | Landline or VoIP | RCN TELECOM SERVICES OF ILLINIOS, INC. - IL (8702) | CHCGIL24SMD | 358 | — | — |
| 224-208 | 1 | Bartlett | Landline or VoIP | ONVOY, LLC (224C) | CHICAGO | 358 | — | — |
| 224-208 | 2 | Bartlett | Landline or VoIP | FIRST COMMUNICATIONS, LLC (460K) | CHCGILWUX6X | 358 | — | — |
| 224-208 | 3 | Bartlett | Landline or VoIP | PAETEC ITEL, LLC (829J) | CHCGILWBXWZ | 358 | — | — |
| 224-208 | 5 | Bartlett | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - IL (984E) | CHCGILWBXDZ | 358 | — | — |
| 224-208 | 6 | Bartlett | Landline or VoIP | ONVOY, LLC (224C) | CHICAGO | 358 | — | — |
| 224-208 | 7 | Bartlett | Landline or VoIP | ONVOY, LLC (224C) | CHICAGO | 358 | — | — |
| 224-208 | 8 | Bartlett | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - IL (984E) | CHCGILWBXDZ | 358 | — | — |
| 224-208 | A | Bartlett | Landline or VoIP | ONVOY, LLC (224C) | CHICAGO | 358 | — | — |
| 224-209 | 0 | Algonquin | Wireless | T-MOBILE USA, INC. (6529) | ELGNILOTGT5 | 358 | — | — |
| 224-209 | 1 | Algonquin | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | SCBGILRRGT1 | 358 | — | — |
| 224-209 | 2 | Algonquin | Landline or VoIP | ONVOY, LLC (224C) | CHICAGO | 358 | — | — |
Block-level assignments from the North American Numbering Plan administrator, via localcallingguide.com.
Assigned Prefixes
595
Assignment Blocks
6,160
Rate Centers
41
Carriers of Record
37
| Type | Blocks | Share |
|---|---|---|
| Landline | 186 | 3% |
| Landline or VoIP | 2,815 | 46% |
| Wireless | 3,159 | 51% |
| Carrier | Blocks |
|---|---|
| T-MOBILE USA, INC. | 1,302 |
| ONVOY, LLC | 952 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 884 |
| NEW CINGULAR WIRELESS PCS, LLC - IL | 883 |
| BANDWIDTH.COM CLEC, LLC - IL | 309 |
| ILLINOIS BELL TEL CO | 186 |
| LEVEL 3 COMMUNICATIONS, LLC - IL | 179 |
| COMCAST IP PHONE, LLC | 160 |
| TELEPORT COMMUNICATIONS AMERICA, LLC - IL | 143 |
| PEERLESS NETWORK OF ILLINOIS, LLC - IL | 142 |
| 27 other carriers | 1,020 |
Carrier of record for each block. Numbers ported to another carrier keep their original block assignment, so this is not a lookup of who serves a given number today.
| Rate Center | Prefixes | Blocks |
|---|---|---|
| Arlington Heights | 72 | 748 |
| Northbrook | 71 | 745 |
| Des Plaines | 48 | 524 |
| Elgin | 44 | 476 |
| Waukegan | 37 | 401 |
| Algonquin | 36 | 391 |
| Wheeling | 23 | 246 |
| Libertyville | 22 | 217 |
| Deerfield | 20 | 190 |
| Barrington | 18 | 166 |
| Elk Grove | 18 | 178 |
| Glenview | 14 | 150 |
| Skokie | 13 | 142 |
| Round Lake | 12 | 109 |
| Lake Forest | 11 | 116 |
| Palatine | 11 | 118 |
| Evanston | 10 | 106 |
| Fox Lake | 9 | 92 |
| Roselle | 9 | 93 |
| Winnetka | 8 | 78 |
| Zion | 8 | 84 |
| Antioch | 7 | 74 |
| Dundee | 7 | 70 |
| Huntley | 7 | 71 |
| Lake Villa | 6 | 56 |
| Lake Zurich | 6 | 50 |
| Cary | 5 | 48 |
| Grayslake | 5 | 53 |
| Highland Park | 5 | 49 |
| Bartlett | 4 | 40 |
| Hampshire | 4 | 35 |
| Park Ridge | 4 | 35 |
| Schiller Park | 4 | 40 |
| Wilmette | 4 | 44 |
| Bensenville | 3 | 32 |
| Plato Center | 3 | 25 |
| Wauconda | 3 | 24 |
| Barrington South | 1 | 11 |
| North Chicago | 1 | 11 |
| Schaumburg | 1 | 11 |
| Willowcrest | 1 | 11 |
A rate center is the telephone exchange area a number is homed to. It sets local calling boundaries, and is not the caller's current location.
Area code 224 is a North American Numbering Plan (NANP) telephone area code assigned to Illinois, United States. It is one of 17 area codes serving Illinois. As population and demand for phone numbers grew, the region was divided into multiple numbering plan areas to avoid exhausting the available 7-digit number pool.
Yes. 224 is an active North American Numbering Plan (NANP) area code, currently assigned to Illinois, United States. It is safe to answer or dial calls using this area code.
Area code 224 covers 41 cities and communities in Illinois, including Algonquin, Antioch, Arlington Heights, Barrington, Barrington South, and 36 more localities. This is based on telephone company rate center data — the geographic areas carriers use to determine local calling boundaries and to assign numbers when a business or individual requests a phone number in a specific city.
All numbers in the 224 area code observe Central Time (IANA timezone: America/Chicago). Central Time is UTC−6 in winter (CST) and UTC−5 in summer (CDT). When placing a call to a 224 number from a different time zone, check the current local time above to avoid calling outside of business hours.
From within Illinois, dial the 7-digit local number directly if calling within the same rate center, or dial 1 + 224 + 7-digit number for long-distance calls within North America. From outside the US or Canada, dial your country's international exit code followed by 1 224 XXX XXXX. The country code for both the United States and Canada in NANP is +1.
Format 224 numbers using E.164 notation as required by RFC 3966: prefix with +1 and omit dashes and parentheses (e.g., +12245550100). This format ensures tel: links work correctly on all mobile browsers and VoIP apps. See the tel: URI formatting guide for complete examples.