National Phone Number Registry NPNR

Area Code 231 Location

Area code 231 is currently assigned for use in Michigan since Jun 05, 1999. This area code originated from the 616 area code previously by means of area code split or overlay. View all phone prefixes used in area code 231 or other area codes in Michigan.

(231)
Enter 7-digit phone number for area code 231 or the complete 10-digit phone number

Phone Prefixes for Area Code 231

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Area code Location Company / Service Provider
231-201 CHIPPEWALK, MI NEW CINGULAR WIRELESS PCS, LLC - IL
231-202 MECOSTA, MI NEW CINGULAR WIRELESS PCS, LLC - IL
231-203 ALANSON, MI NEW CINGULAR WIRELESS PCS, LLC - IL
231-204 FIFE LAKE, MI USA MOBILITY WIRELESS, INC.
231-205 BRUTUS, MI TELNET WORLDWIDE, INC.
231-206 MUSKEGON, MI SPRINT SPECTRUM L.P.
231-207 HONOR, MI TELNET WORLDWIDE, INC.
231-208 BOYNEFALLS, MI TELNET WORLDWIDE, INC.
231-209 SUTTONS BAY, MI TELNET WORLDWIDE, INC.
231-212 INTERLOCHN, MI CENTURYLINK COMMUNICATIONS LLC
231-213 Traverse City, MI AMERITECH MICHIGAN
231-214 LE ROY, MI USA MOBILITY WIRELESS, INC.
231-215 MUSKEGON, MI CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI
231-216 FRANKFORT, MI PEERLESS NETWORK OF MICHIGAN, LLC - MI
231-217 BEAR LAKE, MI TELNET WORLDWIDE, INC.
231-218 Traverse City, MI SPRINT SPECTRUM L.P.
231-219 MERRITT, MI TELNET WORLDWIDE, INC.
231-220 MUSKEGON, MI 123 NET, INC.
231-221 Harbor Springs, MI CENTURYLINK COMMUNICATIONS LLC
231-222 East Jordan, MI LEVEL 3 COMMUNICATIONS, LLC - MI
231-223 OLDMISSION, MI PENINSULA TELEPHONE CO.
231-224 FREMONT, MI LUCRE, INC.
231-225 FREMONT, MI LEVEL 3 COMMUNICATIONS, LLC - MI
231-226 GLEN LAKE, MI TELNET WORLDWIDE, INC.
231-227 HONOR, MI CHARTER FIBERLINK - MICHIGAN, LLC - MI
231-228 GLEN LAKE, MI CENTURYTEL OF MICHIGAN INC DBA CENTURYLINK
231-229 MOORESTOWN, MI CENTURYTEL OF MICHIGAN INC DBA CENTURYLINK
231-230 ELMIRA, MI TELNET WORLDWIDE, INC.
231-232 MOORESTOWN, MI TELNET WORLDWIDE, INC.
231-233 LUDINGTON, MI CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI
231-234 BUCKLEY, MI CHARTER FIBERLINK - MICHIGAN, LLC - MI
231-235 LEVERING, MI TELNET WORLDWIDE, INC.
231-236 LAKE CITY, MI TELNET WORLDWIDE, INC.
231-237 CHARLEVOIX, MI AMERITECH MICHIGAN
231-238 INDIAN RIV, MI AMERITECH MICHIGAN
231-239 LUDINGTON, MI CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI
231-240 LAKE ANN, MI TELNET WORLDWIDE, INC.
231-241 PENTWATER, MI DAYSTARR, LLC DBA DAYSTARR COMMUNICATIONS - MI
231-242 Harbor Springs, MI AMERITECH MICHIGAN
231-243 ALANSON, MI TELNET WORLDWIDE, INC.
231-244 BOYNE CITY, MI CENTURYLINK COMMUNICATIONS LLC
231-245 NEWAYGO, MI NEW CINGULAR WIRELESS PCS, LLC - IL
231-246 MUSKEGON, MI COMCAST PHONE OF MICHIGAN, LLC - MI
231-249 CHEBOYGAN, MI LUCRE, INC.
231-250 BIG RAPIDS, MI CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI
231-251 LKLEELANAU, MI PEERLESS NETWORK OF MICHIGAN, LLC - MI
231-252 Traverse City, MI BANDWIDTH.COM CLEC, LLC - MI
231-255 ONEKAMA, MI USA MOBILITY WIRELESS, INC.
231-256 LKLEELANAU, MI AMERITECH MICHIGAN
231-258 KALKASKA, MI AMERITECH MICHIGAN
New numbers being added to 231 area code
Effective: 04/30/2017
231-260 in MUSKEGON, MI
OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS LLC
Effective: 07/15/2017
231-493 in TRAVERSE CITY, MI
OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS LLC
Effective: 06/23/2017
231-581 in ALBA, MI
CHARTER FIBERLINK - MICHIGAN, LLC - MI
231 Area Code Information
Type of code: General Purpose Code
Location: MI - US
Time zone: E
Assigned for use: Yes
Code in service: Yes
Service date: June 05, 1999
In jeopardy: No
Relief in progress: No
NPA Relief status:
Code assignable: Yes
Geographic or
non-geographic:
G
Reserved for future use: No
Planning letter(s): 167
Overlay code: No
Overlay complex:
Dialing plan Standard Permissive
Home local calls: 7D 10D
Foreign local calls: 10D NA
Home toll calls: 1+10D NA
Foreign toll calls: 1+10D -
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