Look up any phone number starting with 630 to identify the owner name, address, spam reports, and more. The 630 area code serves portions of Chicago's near and far western suburbs, including the majority of DuPage County, Illinois.
Enter a full 10-digit number to identify the caller and whether it has been reported as spam.
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Area code 630 covers the western suburbs of Chicago, Illinois.
Area code 331 overlays area code 630. Area code 630 was created on August 3, 1996, and area code 331 was introduced on October 7, 2007. Ten-digit dialing is mandatory in this area.
Area code 630 is a general purpose code which was placed in service on August 3, 1996.
Our Illinois phone number lookup for the 630 area code analyzes the three-digit prefix to identify the initially assigned telecommunications company and rate center. This prefix code data may help to determine the U.S. carrier, Illinois geographic region, and local calling area associated with the phone number.
Phone numbers follow the following structure under the North American Numbering Plan:
Understanding the area code can help you determine if a call is local to your area. However, keep in mind that due to mobile number portability and VoIP services, the caller may be anywhere in the United States, so it’s best to search for the most recent phone number details.
| Company | Number of Prefixes |
|---|---|
| ILLINOIS BELL TEL CO | 242 |
| NEW CINGULAR WIRELESS PCS, LLC - IL | 79 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 55 |
| SPRINT SPECTRUM, L.P. | 50 |
| LEVEL 3 COMMUNICATIONS, LLC - IL | 40 |
| TELEPORT COMMUNICATIONS AMERICA, LLC - IL | 39 |
| OVATION COMMUNICATIONS OF ILLINOIS, INC. | 28 |
| T-MOBILE USA, INC. | 25 |
| XO ILLINOIS, INC. | 18 |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 17 |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | 17 |
| AT&T - LOCAL | 13 |
| GLOBAL CROSSING LOCAL SERVICES, INC. - IL | 9 |
| FIRST COMMUNICATIONS, LLC - IL | 6 |
| RCN TELECOM SERVICES OF ILLINIOS, INC. - IL | 6 |
| COMCAST IP PHONE, LLC | 5 |
| USA MOBILITY WIRELESS, INC. | 4 |
| AT&T CORP. | 3 |
| FIRST COMMUNICATIONS, LLC | 3 |
| AMERICAN MESSAGING SERVICES, LLC | 2 |
| BANDWIDTH.COM CLEC, LLC - IL | 2 |
| PEERLESS NETWORK OF ILLINOIS, LLC - IL | 2 |
Carrier names have been updated from their original FCC assignments to reflect current companies following mergers, acquisitions, and rebranding. Updates were determined using AI-assisted research and may not be accurate or reflect up to date changes. This data is provided without warranties of accuracy or completeness.
| Rate Center | Number of Prefixes |
|---|---|
| HINSDALE | 70 |
| NAPERVILLE | 69 |
| LA GRANGE | 56 |
| AURORA | 53 |
| DOWNERSGRV | 50 |
| ROSELLE | 50 |
| ELMHURST | 38 |
| LOMBARD | 35 |
| WHEATON | 29 |
| BENSENVL | 21 |
| LEMONT | 21 |
| NORTHBROOK | 21 |
| W CHICAGO | 18 |
| ST CHARLES | 17 |
| BARTLETT | 16 |
| ITASCA | 16 |
| GENEVA | 13 |
| GLEN ELLYN | 12 |
| BATAVIA | 10 |
| SUGARGROVE | 9 |
| WARRENVL | 7 |
| OSWEGO | 6 |
| WHEELING | 6 |
| ELGIN | 4 |
| YORKVILLE | 4 |
| CHICGOZN01 | 3 |
| ELBURN | 3 |
| KANEVILLE | 3 |
| PLANO | 2 |
| SUMMIT | 2 |
| BIG ROCK | 1 |
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