Enter a phone number starting with 331 to complete a free reverse phone lookup.
Our database includes 32 area code 331 prefixes with phone numbers:
| Prefix | Company | Rate Center |
|---|---|---|
| 331-201 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | DOWNERSGRV |
| 331-208 | SPRINT SPECTRUM L.P. | AURORA |
| 331-209 | LEVEL 3 COMMUNICATIONS, LLC - IL | ELMHURST |
| 331-213 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | NAPERVILLE |
| 331-215 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | NAPERVILLE |
| 331-218 | T-MOBILE USA, INC. | WHEATON |
| 331-221 | AMERITECH ILLINOIS | ELMHURST |
| 331-222 | NEW CINGULAR WIRELESS PCS, LLC - IL | ST CHARLES |
| 331-228 | OVATION COMMUNICATIONS OF ILLINOIS, INC. | ST CHARLES |
| 331-250 | T-MOBILE USA, INC. | AURORA |
| 331-251 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | DOWNERSGRV |
| 331-253 | T-MOBILE USA, INC. | LEMONT |
| 331-256 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | AURORA |
| 331-262 | SPRINT SPECTRUM L.P. | AURORA |
| 331-318 | LOCAL ACCESS LLC - IL | LEMONT |
| 331-330 | NEW CINGULAR WIRELESS PCS, LLC - IL | NAPERVILLE |
| 331-332 | NEW CINGULAR WIRELESS PCS, LLC - IL | NAPERVILLE |
| 331-333 | NEW CINGULAR WIRELESS PCS, LLC - IL | NAPERVILLE |
| 331-425 | T-MOBILE USA, INC. | AURORA |
| 331-444 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | NAPERVILLE |
| 331-454 | NEW CINGULAR WIRELESS PCS, LLC - IL | AURORA |
| 331-457 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | NAPERVILLE |
| 331-472 | T-MOBILE USA, INC. | NAPERVILLE |
| 331-575 | SPRINT SPECTRUM L.P. | AURORA |
| 331-588 | NEW CINGULAR WIRELESS PCS, LLC - IL | ST CHARLES |
| 331-645 | SPRINT SPECTRUM L.P. | ELMHURST |
| 331-684 | SIGECOM, LLC DBA WOW INTERNET CABLE AND PHONE | AURORA |
| 331-701 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | NAPERVILLE |
| 331-702 | MCI WORLDCOM COMMUNICATIONS, INC. - IL | NAPERVILLE |
| 331-777 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | DOWNERSGRV |
| 331-814 | T-MOBILE USA, INC. | NAPERVILLE |
| 331-901 | BANDWIDTH.COM CLEC, LLC - IL | ST CHARLES |
Area code 331 belongs to ILLINOIS, UNITED STATES. It is a General Purpose Code which was placed in service on January 1, 1947.
| Type | General Purpose Code |
| Use | Geograpic |
| Location | ILLINOIS (IL) |
| Country | UNITED STATES |
| Service Date | 07/10/2007 |
| Service |
Other area codes serving ILLINOIS