Phone Number Locator: Area Code (NPA) 331

Location: Illinois [US]


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Area Code (NPA):331
NPA Status:Assigned
NPA Notes:None
NPA Notes:None
In Jeopardy?No
Country:US
State:Illinois
LATA Region:Chicago IL METRO
LATA:358
NXX Count:68 (9% utilized), 732 left
Exhaust:2036 4Q (for 630/331)
Assign Date:07/23/99 1
Effective Date:10/07/07 1
Parent NPA:630
Overlay?Yes
Overlay Complex:630/331
Predominant Timezone:GMT-0600
Map Location: 
  


Exchanges in area code 331 that are currently assigned:

Area Code + Exchange
(NPA+NXX)		City
Distance (from , )		CompanyStatus
331-200-xxxxBartlett, IL
T-MOBILE USA, INC.
Type=Wireless (OCN=6529)		Assigned
331-213-xxxxNaperville, IL
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
Type=Wireless Date: 11/04/2011 (OCN=6333)		Assigned
331-220-xxxxAurora, IL
SPRINT SPECTRUM L.P.
Type=Wireless (OCN=6664)		Assigned
331-220-4xxxAurora, IL
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
Type=Wireless (OCN=6333)		Assigned
331-220-5xxxAurora, IL
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
Type=Wireless (OCN=6333)		Assigned
331-221-xxxxElmhurst, IL
AMERITECH ILLINOIS
Type=Landline (OCN=9329)		Assigned
331-222-xxxxSt Charles, IL
DENALI SPECTRUM LICENSE, LLC
Type=Wireless (OCN=701E)		Assigned
331-222-2xxxSt Charles, IL
NEW CINGULAR WIRELESS PCS, LLC - IL
Type=Wireless (OCN=6534)		Assigned
331-222-3xxxSt Charles, IL
BANDWIDTH.COM CLEC, LLC - IL
Type=Landline (OCN=984E)		Assigned
331-222-4xxxSt Charles, IL
PEERLESS NETWORK OF ILLINOIS, LLC - IL
Type=Landline (OCN=063E)		Assigned
331-222-5xxxSt Charles, IL
PEERLESS NETWORK OF ILLINOIS, LLC - IL
Type=Landline (OCN=063E)		Assigned
331-222-6xxxSt Charles, IL
NEW CINGULAR WIRELESS PCS, LLC - IL
Type=Wireless (OCN=6534)		Assigned
331-222-7xxxSt Charles, IL
BANDWIDTH.COM CLEC, LLC - IL
Type=Landline (OCN=984E)		Assigned
331-222-8xxxSt Charles, IL
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
Type=Wireless (OCN=6333)		Assigned
331-222-9xxxSt Charles, IL
BANDWIDTH.COM CLEC, LLC - IL
Type=Landline (OCN=984E)		Assigned
331-223-xxxxSt Charles, IL
DENALI SPECTRUM LICENSE, LLC
Type=Wireless (OCN=701E)		Assigned
331-223-1xxxSt Charles, IL
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
Type=Wireless (OCN=6333)		Assigned
331-223-2xxxSt Charles, IL
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
Type=Wireless (OCN=6333)		Assigned
331-223-3xxxSt Charles, IL
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
Type=Wireless (OCN=6333)		Assigned
331-223-4xxxSt Charles, IL
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
Type=Wireless (OCN=6333)		Assigned
331-223-5xxxSt Charles, IL
NEW CINGULAR WIRELESS PCS, LLC - IL
Type=Wireless (OCN=6534)		Assigned
331-223-6xxxSt Charles, IL
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
Type=Wireless (OCN=6333)		Assigned
331-225-xxxxElmhurst, IL
SPRINT SPECTRUM L.P.
Type=Wireless Date: 10/06/2011 (OCN=6664)		Assigned
331-227-xxxxSugar Grove, IL
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
Type=Wireless Date: 10/07/2011 (OCN=6333)		Assigned
331-248-xxxxGeneva, IL
COMCAST PHONE OF ILLINOIS, LLC DBA COMCO - IL
Type=Landline (OCN=7607)		Assigned
331-248-1xxxGeneva, IL
BANDWIDTH.COM CLEC, LLC - IL
Type=Landline (OCN=984E)		Assigned
331-248-2xxxGeneva, IL
BANDWIDTH.COM CLEC, LLC - IL
Type=Landline (OCN=984E)		Assigned
331-248-3xxxGeneva, IL
BANDWIDTH.COM CLEC, LLC - IL
Type=Landline (OCN=984E)		Assigned
331-262-xxxxAurora, IL
SPRINT SPECTRUM L.P.
Type=Wireless (OCN=6664)		Assigned
331-262-0xxxAurora, IL
DENALI SPECTRUM LICENSE, LLC
Type=Wireless (OCN=701E)		Assigned
331-262-1xxxAurora, IL
DENALI SPECTRUM LICENSE, LLC
Type=Wireless (OCN=701E)		Assigned
331-262-2xxxAurora, IL
DENALI SPECTRUM LICENSE, LLC
Type=Wireless (OCN=701E)		Assigned
331-262-3xxxAurora, IL
DENALI SPECTRUM LICENSE, LLC
Type=Wireless (OCN=701E)		Assigned
331-262-4xxxAurora, IL
DENALI SPECTRUM LICENSE, LLC
Type=Wireless (OCN=701E)		Assigned
331-262-5xxxAurora, IL
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
Type=Wireless (OCN=6333)		Assigned
331-262-6xxxAurora, IL
NEXTEL COMMUNICATIONS, INC.
Type=Wireless (OCN=6232)		Assigned
331-262-7xxxAurora, IL
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
Type=Wireless (OCN=6333)		Assigned
331-330-xxxxNaperville, IL
DENALI SPECTRUM LICENSE, LLC
Type=Wireless (OCN=701E)		Assigned
331-330-2xxxNaperville, IL
LEVEL 3 COMMUNICATIONS, LLC - IL
Type=Landline (OCN=6115)		Assigned
331-330-3xxxNaperville, IL
NEW CINGULAR WIRELESS PCS, LLC - IL
Type=Wireless (OCN=6534)		Assigned
331-330-4xxxNaperville, IL
LEVEL 3 COMMUNICATIONS, LLC - IL
Type=Landline (OCN=6115)		Assigned
331-330-5xxxNaperville, IL
NEW CINGULAR WIRELESS PCS, LLC - IL
Type=Wireless (OCN=6534)		Assigned
331-330-6xxxNaperville, IL
NEW CINGULAR WIRELESS PCS, LLC - IL
Type=Wireless (OCN=6534)		Assigned
331-330-7xxxNaperville, IL
BANDWIDTH.COM CLEC, LLC - IL
Type=Landline (OCN=984E)		Assigned
331-330-8xxxNaperville, IL
BANDWIDTH.COM CLEC, LLC - IL
Type=Landline (OCN=984E)		Assigned
331-330-9xxxNaperville, IL
BANDWIDTH.COM CLEC, LLC - IL
Type=Landline (OCN=984E)		Assigned
331-332-xxxxNaperville, IL
DENALI SPECTRUM LICENSE, LLC
Type=Wireless (OCN=701E)		Assigned
331-332-1xxxNaperville, IL
AMERITECH ILLINOIS
Type=Landline (OCN=9329)		Assigned
331-332-2xxxNaperville, IL
AMERITECH ILLINOIS
Type=Landline (OCN=9329)		Assigned
331-332-3xxxNaperville, IL
AMERITECH ILLINOIS
Type=Landline (OCN=9329)		Assigned
331-332-4xxxNaperville, IL
AMERITECH ILLINOIS
Type=Landline (OCN=9329)		Assigned
331-332-5xxxNaperville, IL
AMERITECH ILLINOIS
Type=Landline (OCN=9329)		Assigned
331-332-6xxxNaperville, IL
AMERITECH ILLINOIS
Type=Landline (OCN=9329)		Assigned
331-332-7xxxNaperville, IL
AMERITECH ILLINOIS
Type=Landline (OCN=9329)		Assigned
331-332-8xxxNaperville, IL
AMERITECH ILLINOIS
Type=Landline (OCN=9329)		Assigned
331-332-9xxxNaperville, IL
AMERITECH ILLINOIS
Type=Landline (OCN=9329)		Assigned
331-333-xxxxNaperville, IL
DENALI SPECTRUM LICENSE, LLC
Type=Wireless (OCN=701E)		Assigned
331-333-1xxxNaperville, IL
PEERLESS NETWORK OF ILLINOIS, LLC - IL
Type=Landline (OCN=063E)		Assigned
331-333-2xxxNaperville, IL
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
Type=Wireless (OCN=6333)		Assigned
331-333-3xxxNaperville, IL
PEERLESS NETWORK OF ILLINOIS, LLC - IL
Type=Landline (OCN=063E)		Assigned
331-333-4xxxNaperville, IL
MCI WORLDCOM COMMUNICATIONS, INC. - IL
Type=Landline (OCN=7196)		Assigned
331-333-5xxxNaperville, IL
YMAX COMMUNICATIONS CORP. - IL
Type=Landline (OCN=259E)		Assigned
331-333-6xxxNaperville, IL
YMAX COMMUNICATIONS CORP. - IL
Type=Landline (OCN=259E)		Assigned
331-333-7xxxNaperville, IL
MCI WORLDCOM COMMUNICATIONS, INC. - IL
Type=Landline (OCN=7196)		Assigned
331-333-8xxxNaperville, IL
BANDWIDTH.COM CLEC, LLC - IL
Type=Landline (OCN=984E)		Assigned
331-333-9xxxNaperville, IL
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
Type=Wireless (OCN=6333)		Assigned
331-422-xxxxSt Charles, IL
LEVEL 3 COMMUNICATIONS, LLC - IL
Type=Landline (OCN=6115)		Assigned
331-422-2xxxSt Charles, IL
GLOBAL CROSSING LOCAL SERVICES, INC.-IL
Type=Landline (OCN=8709)		Assigned
331-422-6xxxSt Charles, IL
NEXTEL COMMUNICATIONS, INC.
Type=Wireless (OCN=6232)		Assigned
331-422-9xxxSt Charles, IL
NEW CINGULAR WIRELESS PCS, LLC - IL
Type=Wireless (OCN=6534)		Assigned
331-425-xxxxAurora, IL
T-MOBILE USA, INC.
Type=Wireless (OCN=6529)		Assigned
331-425-6xxxAurora, IL
BROADWING COMMUNICATIONS, LLC - IL
Type=Landline (OCN=7721)		Assigned
331-425-7xxxAurora, IL
BROADWING COMMUNICATIONS, LLC - IL
Type=Landline (OCN=7721)		Assigned
331-425-8xxxAurora, IL
BANDWIDTH.COM CLEC, LLC - IL
Type=Landline (OCN=984E)		Assigned
331-431-xxxxAurora, IL
BANDWIDTH.COM CLEC, LLC - IL
Type=Landline (OCN=984E)		Assigned
331-431-0xxxAurora, IL
DENALI SPECTRUM LICENSE, LLC
Type=Wireless (OCN=701E)		Assigned
331-431-1xxxAurora, IL
T-MOBILE USA, INC.
Type=Wireless (OCN=6529)		Assigned
331-431-2xxxAurora, IL
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
Type=Wireless (OCN=6333)		Assigned
331-431-3xxxAurora, IL
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
Type=Wireless (OCN=6333)		Assigned
331-431-7xxxAurora, IL
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
Type=Wireless (OCN=6333)		Assigned
331-431-8xxxAurora, IL
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
Type=Wireless (OCN=6333)		Assigned
331-431-9xxxAurora, IL
T-MOBILE USA, INC.
Type=Wireless (OCN=6529)		Assigned
331-442-xxxxSt Charles, IL
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
Type=Wireless (OCN=6333)		Assigned
331-442-1xxxSt Charles, IL
NEW CINGULAR WIRELESS PCS, LLC - IL
Type=Wireless (OCN=6534)		Assigned
331-442-2xxxSt Charles, IL
NEW CINGULAR WIRELESS PCS, LLC - IL
Type=Wireless (OCN=6534)		Assigned
331-442-4xxxSt Charles, IL
BANDWIDTH.COM CLEC, LLC - IL
Type=Landline (OCN=984E)		Assigned
331-442-5xxxSt Charles, IL
NEW CINGULAR WIRELESS PCS, LLC - IL
Type=Wireless (OCN=6534)		Assigned
331-442-6xxxSt Charles, IL
NEW CINGULAR WIRELESS PCS, LLC - IL
Type=Wireless (OCN=6534)		Assigned
331-442-8xxxSt Charles, IL
US XCHANGE OF ILLINOIS LLC DBA CHOICE ONE COMM IL
Type=Landline (OCN=8760)		Assigned
331-444-xxxxNaperville, IL
CYGNUS TELECOMMUNICATIONS CORPORATION - IL
Type=Landline (OCN=161F)		Assigned
331-444-0xxxNaperville, IL
BANDWIDTH.COM CLEC, LLC - IL
Type=Landline (OCN=984E)		Assigned
331-444-1xxxNaperville, IL
BANDWIDTH.COM CLEC, LLC - IL
Type=Landline (OCN=984E)		Assigned
331-444-2xxxNaperville, IL
BANDWIDTH.COM CLEC, LLC - IL
Type=Landline (OCN=984E)		Assigned
331-444-3xxxNaperville, IL
NEW CINGULAR WIRELESS PCS, LLC - IL
Type=Wireless (OCN=6534)		Assigned
331-444-5xxxNaperville, IL
BANDWIDTH.COM CLEC, LLC - IL
Type=Landline (OCN=984E)		Assigned
331-452-xxxxAurora, IL
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
Type=Wireless (OCN=6333)		Assigned
331-452-4xxxAurora, IL
DENALI SPECTRUM LICENSE, LLC
Type=Wireless (OCN=701E)		Assigned
331-454-xxxxAurora, IL
DENALI SPECTRUM LICENSE, LLC
Type=Wireless (OCN=701E)		Assigned
331-454-4xxxAurora, IL
SPRINT SPECTRUM L.P.
Type=Wireless (OCN=6664)		Assigned
331-454-5xxxAurora, IL
US XCHANGE OF ILLINOIS LLC DBA CHOICE ONE COMM IL
Type=Landline (OCN=8760)		Assigned
331-454-6xxxAurora, IL
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
Type=Wireless (OCN=6333)		Assigned
331-454-7xxxAurora, IL
CBEYOND COMMUNICATIONS, LLC - IL
Type=Landline (OCN=2491)		Assigned
331-454-8xxxAurora, IL
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
Type=Wireless (OCN=6333)		Assigned
331-456-xxxxRoselle, IL
GLOBALCOM, INC.-IL
Type=Landline (OCN=4604)		Assigned
331-457-xxxxNaperville, IL
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
Type=Wireless (OCN=6333)		Assigned
331-457-2xxxNaperville, IL
NEW CINGULAR WIRELESS PCS, LLC - IL
Type=Wireless (OCN=6534)		Assigned
331-457-3xxxNaperville, IL
NEW CINGULAR WIRELESS PCS, LLC - IL
Type=Wireless (OCN=6534)		Assigned
331-457-4xxxNaperville, IL
ALLEGIANCE TELECOM, INC. - IL
Type=Landline (OCN=8950)		Assigned
331-457-5xxxNaperville, IL
COMCAST PHONE OF ILLINOIS, LLC DBA COMCO - IL
Type=Landline (OCN=7607)		Assigned
331-457-6xxxNaperville, IL
CIMCO COMMUNICATIONS, INC. - IL
Type=Landline (OCN=5917)		Assigned
331-457-8xxxNaperville, IL
US XCHANGE OF ILLINOIS LLC DBA CHOICE ONE COMM IL
Type=Landline (OCN=8760)		Assigned
331-462-xxxxLombard, IL
XO ILLINOIS, INC.
Type=Landline (OCN=7056)		Assigned
331-462-0xxxLombard, IL
BANDWIDTH.COM CLEC, LLC - IL
Type=Landline (OCN=984E)		Assigned
331-462-2xxxLombard, IL
YMAX COMMUNICATIONS CORP. - IL
Type=Landline (OCN=259E)		Assigned
331-462-3xxxLombard, IL
YMAX COMMUNICATIONS CORP. - IL
Type=Landline (OCN=259E)		Assigned
331-462-4xxxLombard, IL
YMAX COMMUNICATIONS CORP. - IL
Type=Landline (OCN=259E)		Assigned
331-462-5xxxLombard, IL
YMAX COMMUNICATIONS CORP. - IL
Type=Landline (OCN=259E)		Assigned
331-462-6xxxLombard, IL
YMAX COMMUNICATIONS CORP. - IL
Type=Landline (OCN=259E)		Assigned
331-462-7xxxLombard, IL
YMAX COMMUNICATIONS CORP. - IL
Type=Landline (OCN=259E)		Assigned
331-462-8xxxLombard, IL
YMAX COMMUNICATIONS CORP. - IL
Type=Landline (OCN=259E)		Assigned
331-462-9xxxLombard, IL
YMAX COMMUNICATIONS CORP. - IL
Type=Landline (OCN=259E)		Assigned
331-465-xxxxWest Chicago, IL
NEW CINGULAR WIRELESS PCS, LLC - IL
Type=Wireless (OCN=6534)		Assigned
331-465-0xxxWest Chicago, IL
XO ILLINOIS, INC.
Type=Landline (OCN=7056)		Assigned
331-465-1xxxWest Chicago, IL
BANDWIDTH.COM CLEC, LLC - IL
Type=Landline (OCN=984E)		Assigned
331-465-2xxxWest Chicago, IL
BANDWIDTH.COM CLEC, LLC - IL
Type=Landline (OCN=984E)		Assigned
331-465-3xxxWest Chicago, IL
PAETEC COMMUNICATIONS, INC. - IL
Type=Landline (OCN=4717)		Assigned
331-465-4xxxWest Chicago, IL
T-MOBILE USA, INC.
Type=Wireless (OCN=6529)		Assigned
331-465-5xxxWest Chicago, IL
BANDWIDTH.COM CLEC, LLC - IL
Type=Landline (OCN=984E)		Assigned
331-465-6xxxWest Chicago, IL
US XCHANGE OF ILLINOIS LLC DBA CHOICE ONE COMM IL
Type=Landline (OCN=8760)		Assigned
331-465-7xxxWest Chicago, IL
XO ILLINOIS, INC.
Type=Landline (OCN=7056)		Assigned
331-465-8xxxWest Chicago, IL
XO ILLINOIS, INC.
Type=Landline (OCN=7056)		Assigned
331-465-9xxxWest Chicago, IL
BANDWIDTH.COM CLEC, LLC - IL
Type=Landline (OCN=984E)		Assigned
331-472-xxxxNaperville, IL
T-MOBILE USA, INC.
Type=Wireless (OCN=6529)		Assigned
331-472-0xxxNaperville, IL
BANDWIDTH.COM CLEC, LLC - IL
Type=Landline (OCN=984E)		Assigned
331-472-1xxxNaperville, IL
CBEYOND COMMUNICATIONS, LLC - IL
Type=Landline (OCN=2491)		Assigned
331-472-2xxxNaperville, IL
GLOBAL CROSSING LOCAL SERVICES, INC.-IL
Type=Landline (OCN=8709)		Assigned
331-472-3xxxNaperville, IL
LEVEL 3 COMMUNICATIONS, LLC - IL
Type=Landline (OCN=6115)		Assigned
331-472-4xxxNaperville, IL
COMCAST PHONE OF ILLINOIS, LLC DBA COMCO - IL
Type=Landline (OCN=7607)		Assigned
331-472-5xxxNaperville, IL
PAETEC COMMUNICATIONS, INC. - IL
Type=Landline (OCN=4717)		Assigned
331-472-6xxxNaperville, IL
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
Type=Wireless (OCN=6333)		Assigned
331-472-7xxxNaperville, IL
BANDWIDTH.COM CLEC, LLC - IL
Type=Landline (OCN=984E)		Assigned
331-472-8xxxNaperville, IL
LEVEL 3 COMMUNICATIONS, LLC - IL
Type=Landline (OCN=6115)		Assigned
331-481-xxxxDowners Grove, IL
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
Type=Wireless (OCN=6333)		Assigned
331-481-1xxxDowners Grove, IL
NEW CINGULAR WIRELESS PCS, LLC - IL
Type=Wireless (OCN=6534)		Assigned
331-481-4xxxDowners Grove, IL
ACCESS ONE, INC. - IL
Type=Landline (OCN=5447)		Assigned
331-481-5xxxDowners Grove, IL
CBEYOND COMMUNICATIONS, LLC - IL
Type=Landline (OCN=2491)		Assigned
331-481-6xxxDowners Grove, IL
BANDWIDTH.COM CLEC, LLC - IL
Type=Landline (OCN=984E)		Assigned
331-481-7xxxDowners Grove, IL
LEVEL 3 COMMUNICATIONS, LLC - IL
Type=Landline (OCN=6115)		Assigned
331-481-8xxxDowners Grove, IL
LEVEL 3 COMMUNICATIONS, LLC - IL
Type=Landline (OCN=6115)		Assigned
331-481-9xxxDowners Grove, IL
BANDWIDTH.COM CLEC, LLC - IL
Type=Landline (OCN=984E)		Assigned
331-551-xxxxLombard, IL
DENALI SPECTRUM LICENSE, LLC
Type=Wireless (OCN=701E)		Assigned
331-551-5xxxLombard, IL
CIMCO COMMUNICATIONS, INC. - IL
Type=Landline (OCN=5917)		Assigned
331-551-6xxxLombard, IL
BANDWIDTH.COM CLEC, LLC - IL
Type=Landline (OCN=984E)		Assigned
331-551-7xxxLombard, IL
PEERLESS NETWORK OF ILLINOIS, LLC - IL
Type=Landline (OCN=063E)		Assigned
331-551-8xxxLombard, IL
BANDWIDTH.COM CLEC, LLC - IL
Type=Landline (OCN=984E)		Assigned
331-551-9xxxLombard, IL
BANDWIDTH.COM CLEC, LLC - IL
Type=Landline (OCN=984E)		Assigned
331-575-xxxxAurora, IL
SPRINT SPECTRUM L.P.
Type=Wireless (OCN=6664)		Assigned
331-575-0xxxAurora, IL
DENALI SPECTRUM LICENSE, LLC
Type=Wireless (OCN=701E)		Assigned
331-575-1xxxAurora, IL
DENALI SPECTRUM LICENSE, LLC
Type=Wireless (OCN=701E)		Assigned
331-575-2xxxAurora, IL
DENALI SPECTRUM LICENSE, LLC
Type=Wireless (OCN=701E)		Assigned
331-575-3xxxAurora, IL
DENALI SPECTRUM LICENSE, LLC
Type=Wireless (OCN=701E)		Assigned
331-575-4xxxAurora, IL
DENALI SPECTRUM LICENSE, LLC
Type=Wireless (OCN=701E)		Assigned
331-575-5xxxAurora, IL
DENALI SPECTRUM LICENSE, LLC
Type=Wireless (OCN=701E)		Assigned
331-575-6xxxAurora, IL
DENALI SPECTRUM LICENSE, LLC
Type=Wireless (OCN=701E)		Assigned
331-588-xxxxSt Charles, IL
NEW CINGULAR WIRELESS PCS, LLC - IL
Type=Wireless (OCN=6534)		Assigned
331-625-xxxxDowners Grove, IL
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
Type=Wireless (OCN=6333)		Assigned
331-625-1xxxDowners Grove, IL
BANDWIDTH.COM CLEC, LLC - IL
Type=Landline (OCN=984E)		Assigned
331-625-2xxxDowners Grove, IL
NEW CINGULAR WIRELESS PCS, LLC - IL
Type=Wireless (OCN=6534)		Assigned
331-625-5xxxDowners Grove, IL
NEW CINGULAR WIRELESS PCS, LLC - IL
Type=Wireless (OCN=6534)		Assigned
331-625-6xxxDowners Grove, IL
PEERLESS NETWORK OF ILLINOIS, LLC - IL
Type=Landline (OCN=063E)		Assigned
331-625-7xxxDowners Grove, IL
PEERLESS NETWORK OF ILLINOIS, LLC - IL
Type=Landline (OCN=063E)		Assigned
331-625-8xxxDowners Grove, IL
PEERLESS NETWORK OF ILLINOIS, LLC - IL
Type=Landline (OCN=063E)		Assigned
331-625-9xxxDowners Grove, IL
NEW CINGULAR WIRELESS PCS, LLC - IL
Type=Wireless (OCN=6534)		Assigned
331-642-xxxxElmhurst, IL
BANDWIDTH.COM CLEC, LLC - IL
Type=Landline (OCN=984E)		Assigned
331-642-2xxxElmhurst, IL
SPRINT SPECTRUM L.P.
Type=Wireless (OCN=6664)		Assigned
331-642-3xxxElmhurst, IL
SPRINT SPECTRUM L.P.
Type=Wireless (OCN=6664)		Assigned
331-642-4xxxElmhurst, IL
SPRINT SPECTRUM L.P.
Type=Wireless (OCN=6664)		Assigned
331-642-5xxxElmhurst, IL
SPRINT SPECTRUM L.P.
Type=Wireless (OCN=6664)		Assigned
331-642-6xxxElmhurst, IL
CIMCO COMMUNICATIONS, INC. - IL
Type=Landline (OCN=5917)		Assigned
331-642-9xxxElmhurst, IL
SPRINT SPECTRUM L.P.
Type=Wireless (OCN=6664)		Assigned
331-643-xxxxAurora, IL
SPRINT SPECTRUM L.P.
Type=Wireless (OCN=6664)		Assigned
331-643-4xxxAurora, IL
MCI WORLDCOM COMMUNICATIONS, INC. - IL
Type=Landline (OCN=7196)		Assigned
331-643-5xxxAurora, IL
T-MOBILE USA, INC.
Type=Wireless (OCN=6529)		Assigned
331-643-6xxxAurora, IL
T-MOBILE USA, INC.
Type=Wireless (OCN=6529)		Assigned
331-645-xxxxElmhurst, IL
SPRINT SPECTRUM L.P.
Type=Wireless (OCN=6664)		Assigned
331-684-xxxxAurora, IL
SIGECOM, LLC - IL
Type=Landline (OCN=667E)		Assigned
331-684-0xxxAurora, IL
BROADWING COMMUNICATIONS, LLC - IL
Type=Landline (OCN=7721)		Assigned
331-684-1xxxAurora, IL
ACCESS ONE, INC. - IL
Type=Landline (OCN=5447)		Assigned
331-684-3xxxAurora, IL
YMAX COMMUNICATIONS CORP. - IL
Type=Landline (OCN=259E)		Assigned
331-684-4xxxAurora, IL
YMAX COMMUNICATIONS CORP. - IL
Type=Landline (OCN=259E)		Assigned
331-684-5xxxAurora, IL
T-MOBILE USA, INC.
Type=Wireless (OCN=6529)		Assigned
331-684-6xxxAurora, IL
GLOBAL CROSSING LOCAL SERVICES, INC.-IL
Type=Landline (OCN=8709)		Assigned
331-684-7xxxAurora, IL
BANDWIDTH.COM CLEC, LLC - IL
Type=Landline (OCN=984E)		Assigned
331-684-8xxxAurora, IL
BANDWIDTH.COM CLEC, LLC - IL
Type=Landline (OCN=984E)		Assigned
331-684-9xxxAurora, IL
PAETEC COMMUNICATIONS, INC. - IL
Type=Landline (OCN=4717)		Assigned
331-725-xxxxOswego, IL
NEW CINGULAR WIRELESS PCS, LLC - IL
Type=Wireless (OCN=6534)		Assigned
331-725-0xxxOswego, IL
BANDWIDTH.COM CLEC, LLC - IL
Type=Landline (OCN=984E)		Assigned
331-725-2xxxOswego, IL
BANDWIDTH.COM CLEC, LLC - IL
Type=Landline (OCN=984E)		Assigned
331-725-3xxxOswego, IL
US XCHANGE OF ILLINOIS LLC DBA CHOICE ONE COMM IL
Type=Landline (OCN=8760)		Assigned
331-725-5xxxOswego, IL
OVATION COMMUNICATIONS OF ILLINOIS, INC.
Type=Landline (OCN=7765)		Assigned
331-725-7xxxOswego, IL
BANDWIDTH.COM CLEC, LLC - IL
Type=Landline (OCN=984E)		Assigned
331-777-xxxxDowners Grove, IL
CYGNUS TELECOMMUNICATIONS CORPORATION - IL
Type=Landline (OCN=161F)		Assigned
331-825-xxxxGeneva, IL
DIGITAL NETWORK ACCESS COMMUNICATIONS, INC. - IL
Type=Landline (OCN=972C)		Assigned
331-826-xxxxElmhurst, IL
SPRINT SPECTRUM L.P.
Type=Wireless (OCN=6664)		Assigned
331-826-0xxxElmhurst, IL
LEVEL 3 COMMUNICATIONS, LLC - IL
Type=Landline (OCN=6115)		Assigned
331-826-1xxxElmhurst, IL
US XCHANGE OF ILLINOIS LLC DBA CHOICE ONE COMM IL
Type=Landline (OCN=8760)		Assigned
331-826-2xxxElmhurst, IL
PEERLESS NETWORK OF ILLINOIS, LLC - IL
Type=Landline (OCN=063E)		Assigned
331-826-3xxxElmhurst, IL
PEERLESS NETWORK OF ILLINOIS, LLC - IL
Type=Landline (OCN=063E)		Assigned
331-888-xxxxWarrenville, IL
CYGNUS TELECOMMUNICATIONS CORPORATION - IL
Type=Landline (OCN=161F)		Assigned
331-999-xxxxOswego, IL
CYGNUS TELECOMMUNICATIONS CORPORATION - IL
Type=Landline (OCN=161F)		Assigned
331-999-0xxxOswego, IL
BANDWIDTH.COM CLEC, LLC - IL
Type=Landline (OCN=984E)		Assigned
331-999-1xxxOswego, IL
BANDWIDTH.COM CLEC, LLC - IL
Type=Landline (OCN=984E)		Assigned
331-999-2xxxOswego, IL
LEVEL 3 COMMUNICATIONS, LLC - IL
Type=Landline (OCN=6115)		Assigned
331-999-3xxxOswego, IL
LEVEL 3 COMMUNICATIONS, LLC - IL
Type=Landline (OCN=6115)		Assigned


Exchanges in area code 331 that are unavailable, reserved, etc.:

Area Code + Exchange
(NPA+NXX)		City
Distance (from , )		CompanyStatus
331-211-xxxxIL
NXX Use: Community Information and Referral Services Unavailable
331-217-xxxxIL
Unavailable; may be a special use code (e.g. information, testing, etc.)Unavailable
331-224-xxxxIL
Unavailable; may be a special use code (e.g. information, testing, etc.)Unavailable
331-309-xxxxIL
Unavailable; may be a special use code (e.g. information, testing, etc.)Unavailable
331-311-xxxxIL
NXX Use: Non-Emergency Police and Other Governmental Services Unavailable
331-312-xxxxIL
Unavailable; may be a special use code (e.g. information, testing, etc.)Unavailable
331-331-xxxxIL
NXX Use: Home NPA (NPA=NXX)Unavailable
331-411-xxxxIL
NXX Use: Local Directory Assistance Unavailable
331-511-xxxxIL
NXX Use: Traffic and Transportation (US); Weather and Traveller Info (Canada) Unavailable
331-555-xxxxIL
NXX Use: Directory Assistance Unavailable
331-591-xxxxIL
Unavailable; may be a special use code (e.g. information, testing, etc.)Unavailable
331-611-xxxxIL
NXX Use: Repair Service Unavailable
331-618-xxxxIL
Unavailable; may be a special use code (e.g. information, testing, etc.)Unavailable
331-630-xxxxIL
Unavailable; may be a special use code (e.g. information, testing, etc.)Unavailable
331-700-xxxxIL
NXX Use: Prevent confusion with 700 (Interexchange Carrier Services ) numbers Unavailable
331-708-xxxxIL
Unavailable; may be a special use code (e.g. information, testing, etc.)Unavailable
331-711-xxxxIL
NXX Use: Telecommunications Relay Service (TRS) Unavailable
331-773-xxxxIL
Unavailable; may be a special use code (e.g. information, testing, etc.)Unavailable
331-779-xxxxIL
Unavailable; may be a special use code (e.g. information, testing, etc.)Unavailable
331-811-xxxxIL
NXX Use: Protect Pipeline and Utilities from Damage (US); Non-Urgent Health (Canada) Unavailable
331-815-xxxxIL
Unavailable; may be a special use code (e.g. information, testing, etc.)Unavailable
331-847-xxxxIL
Unavailable; may be a special use code (e.g. information, testing, etc.)Unavailable
331-872-xxxxIL
Unavailable; may be a special use code (e.g. information, testing, etc.)Unavailable
331-911-xxxxIL
NXX Use: Emergency Unavailable
331-950-xxxxIL
NXX Use: Feature Group B - Used to access a long distance carrier Unavailable
331-958-xxxxIL
AMERITECH ILLINOIS
Type=Landline (OCN=9329)
NXX Use: Test Code (typically ANAC, states your phone number) 		Unavailable
331-959-xxxxIL
AMERITECH ILLINOIS
Type=Landline (OCN=9329)
NXX Use: Test Code (inter-exchange carrier testing) 		Unavailable
331-976-xxxxIL
NXX Use: Information Services (pay) Unavailable


Exchanges we've seen in databases for area code 331, but that we think don't really exist:

Area Code + Exchange
(NPA+NXX)		City
Distance (from , )		CompanyStatus

[None]

(C) Copyright 2008-2011 WhereCall.com. Displayed for 23.22.252.150 (, ).
Based on data from our master database, which was last updated on 14 Sep 2011.