National Phone Number Registry NPNR

Area Code 720 Location

Area code 720 is currently assigned for use in Colorado since Jun 01, 1998. This area code originated from the 303 area code previously by means of area code split or overlay. View all phone prefixes used in area code 720 or other area codes in Colorado.

(720)
Enter 7-digit phone number for area code 720 or the complete 10-digit phone number

Phone Prefixes for Area Code 720

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Area code Location Company / Service Provider
720-200 DENVER, CO QWEST CORPORATION
720-201 DENVER, CO NEW CINGULAR WIRELESS PCS, LLC
720-202 DENVER, CO CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
720-203 DENVER, CO SPRINT SPECTRUM L.P.
720-204 LONGMONT, CO AT&T LOCAL
720-205 DENVER, CO SPRINT SPECTRUM L.P.
720-206 DENVER, CO XO COLORADO, LLC
720-207 DENVER, CO XO COLORADO, LLC
720-208 DENVER, CO XO COLORADO, LLC
720-209 DENVER, CO SPRINT SPECTRUM L.P.
720-210 DENVER, CO XO COLORADO, LLC
720-212 DENVER, CO XO COLORADO, LLC
720-213 DENVER, CO MCLEODUSA TELECOMMUNICATIONS SERVICES, INC.- CO
720-214 DENVER, CO MCLEODUSA TELECOMMUNICATIONS SERVICES, INC.- CO
720-215 DENVER, CO CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
720-216 DENVER, CO TELEPORT COMMUNICATIONS AMERICA, LLC - CO
720-217 DENVER, CO T-MOBILE USA, INC.
720-218 DENVER, CO SPRINT SPECTRUM L.P.
720-219 DENVER, CO CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
720-220 DENVER, CO T-MOBILE USA, INC.
720-221 DENVER, CO XO COLORADO, LLC
720-222 DENVER, CO XO COLORADO, LLC
720-223 BRIGHTON, CO XO COLORADO, LLC
720-224 DENVER, CO XO COLORADO, LLC
720-225 DENVER, CO XO COLORADO, LLC
720-226 DENVER, CO XO COLORADO, LLC
720-227 DENVER, CO XO COLORADO, LLC
720-228 DENVER, CO XO COLORADO, LLC
720-229 DENVER, CO XO COLORADO, LLC
720-230 BRIGHTON, CO XO COLORADO, LLC
720-231 DENVER, CO T-MOBILE USA, INC.
720-232 DENVER, CO SPRINT SPECTRUM L.P.
720-233 DENVER, CO SPRINT SPECTRUM L.P.
720-234 DENVER, CO SPRINT SPECTRUM L.P.
720-235 DENVER, CO SPRINT SPECTRUM L.P.
720-236 DENVER, CO SPRINT SPECTRUM L.P.
720-237 DENVER, CO NEW CINGULAR WIRELESS PCS, LLC
720-238 DENVER, CO T-MOBILE USA, INC.
720-239 DENVER, CO AT&T LOCAL
720-240 DENVER, CO XO COLORADO, LLC
720-241 DENVER, CO XO COLORADO, LLC
720-242 DENVER, CO QWEST CORPORATION
720-243 DENVER, CO NEW CINGULAR WIRELESS PCS, LLC
720-244 DENVER, CO NEW CINGULAR WIRELESS PCS, LLC
720-245 DENVER, CO ESCHELON TELECOM OF COLORADO, INC. - CO
720-246 DENVER, CO XO COLORADO, LLC
720-247 BRIGHTON, CO XO COLORADO, LLC
720-248 DENVER, CO CBEYOND COMMUNICATIONS, LLC - CO
720-249 DENVER, CO XO COLORADO, LLC
720-250 DENVER, CO XO COLORADO, LLC
New numbers being added to 720 area code
Effective: 04/30/2017
720-607 in DENVER, CO
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
Effective: 05/18/2017
720-631 in DENVER, CO
MCIMETRO ACCESS TRANSMISSION SERVICES LLC
Effective: 04/30/2017
720-791 in GEORGETOWN, CO
TELNYX LLC
Effective: 05/06/2017
720-996 in DENVER, CO
COMMIO, LLC
720 Area Code Information
Type of code: General Purpose Code
Location: CO - US
Time zone: M
Assigned for use: Yes
Code in service: Yes
Service date: June 01, 1998
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): 117
Overlay code: Yes
Overlay complex: 303/720
Dialing plan Standard Permissive
Home local calls: 10D 1+10D
Foreign local calls: 10D 1+10D
Home toll calls: 1+10D NA
Foreign toll calls: 1+10D -

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