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Area Code 720

Browse available prefixes, locations, carriers, and quick path links into deeper phone number pages for this area code. Area-code research is one of the most important parts of reverse phone lookup because it gives visitors a geographic starting point before they inspect a full number.

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200Prefixes Listed
ColoradoLocation
United StatesCountry
720Area Code
Area Code Overview
Area Code720
Primary LocationColorado
CountryUnited States
Prefix Coverage200 listed prefixes
Prefixes in 720
720-200
Englewood
Qwest Corporation
Landline
720-201
Denver
New Cingular Wireless Pcs Llc
Wireless
720-202
Westminster
Cellco Partnership Dba Verizon Wireless - Co
Wireless
720-203
Englewood
Sprint Spectrum L.p.
Wireless
720-204
Denver
At&t Local
Landline
720-205
Englewood
Sprint Spectrum L.p.
Wireless
720-206
Englewood
Xo Colorado Llc
Landline
720-207
Englewood
Xo Colorado Llc
Landline
720-208
Englewood
Xo Colorado Llc
Landline
720-209
Englewood
Sprint Spectrum L.p.
Wireless
720-210
Denver
Xo Colorado Llc
Landline
720-212
Denver
Xo Colorado Llc
Landline
720-213
Denver
Mcleodusa Telecommunications Services Inc.- Co
Landline
720-214
Denver
Mcleodusa Telecommunications Services Inc.- Co
Landline
720-215
Westminster
Cellco Partnership Dba Verizon Wireless - Co
Wireless
720-216
Aurora
Teleport Communications America Llc - Co
Landline
720-217
Denver
T-mobile Usa Inc.
Wireless
720-218
Englewood
Sprint Spectrum L.p.
Wireless
720-219
Englewood
Cellco Partnership Dba Verizon Wireless - Co
Wireless
720-220
Denver
T-mobile Usa Inc.
Wireless
720-221
Englewood
Xo Colorado Llc
Landline
720-222
Englewood
Xo Colorado Llc
Landline
720-223
Englewood
Xo Colorado Llc
Landline
720-224
Denver
Xo Colorado Llc
Landline
720-225
Aurora
Xo Colorado Llc
Landline
720-226
Denver
Xo Colorado Llc
Landline
720-227
Denver
Xo Colorado Llc
Landline
720-228
Englewood
Xo Colorado Llc
Landline
720-229
Denver
Xo Colorado Llc
Landline
720-230
Englewood
Xo Colorado Llc
Landline
720-231
Denver
T-mobile Usa Inc.
Wireless
720-232
Englewood
Sprint Spectrum L.p.
Wireless
720-233
Englewood
Sprint Spectrum L.p.
Wireless
720-234
Englewood
Sprint Spectrum L.p.
Wireless
720-235
Denver
Sprint Spectrum L.p.
Wireless
720-236
Denver
Sprint Spectrum L.p.
Wireless
720-237
Westminster
New Cingular Wireless Pcs Llc
Wireless
720-238
Denver
T-mobile Usa Inc.
Wireless
720-239
Denver
At&t Local
Landline
720-240
Englewood
Xo Colorado Llc
Landline
720-241
Englewood
Xo Colorado Llc
Landline
720-242
Denver
Qwest Corporation
Landline
720-243
Denver
Leap Wireless Intl Inc. Dba Cricket Comm Inc.
Wireless
720-244
Denver
New Cingular Wireless Pcs Llc
Wireless
720-245
Westminster
Eschelon Telecom Of Colorado Inc. - Co
Landline
720-246
Englewood
Xo Colorado Llc
Landline
720-247
Englewood
Xo Colorado Llc
Landline
720-248
Denver
Cbeyond Communications Llc - Co
Landline
720-249
Englewood
Xo Colorado Llc
Landline
720-250
Englewood
Xo Colorado Llc
Landline
720-251
Denver
Level 3 Communications Llc - Co
Landline
720-252
Englewood
Sprint Spectrum L.p.
Wireless
720-253
Englewood
Sprint Spectrum L.p.
Wireless
720-254
Englewood
Sprint Spectrum L.p.
Wireless
720-255
Englewood
Sprint Spectrum L.p.
Wireless
720-256
Denver
Sprint Spectrum L.p.
Wireless
720-257
Denver
Xo Colorado Llc
Landline
720-258
Denver
Teleport Communications America Llc - Co
Landline
720-259
Denver
Level 3 Communications Llc - Co
Landline
720-260
Englewood
Sprint Spectrum L.p.
Wireless
720-261
Denver
T-mobile Usa Inc.
Wireless
720-262
Denver
Icg Telecom Group - Co
Landline
720-263
Denver
Level 3 Communications Llc - Co
Landline
720-264
Denver
Qwest Corporation
Landline
720-265
Englewood
Xo Colorado Llc
Landline
720-266
Denver
Level 3 Communications Llc - Co
Landline
720-267
Englewood
Qwest Corporation
Landline
720-268
Englewood
Qwest Corporation
Landline
720-269
Aurora
Teleport Communications America Llc - Co
Landline
720-270
Englewood
Sprint Spectrum L.p.
Wireless
720-271
Englewood
Sprint Spectrum L.p.
Wireless
720-272
Denver
New Cingular Wireless Pcs Llc
Wireless
720-273
Denver
New Cingular Wireless Pcs Llc
Wireless
720-274
Denver
Mcleodusa Telecommunications Services Inc.- Co
Landline
720-275
Denver
Leap Wireless Intl Inc. Dba Cricket Comm Inc.
Wireless
720-276
Denver
Leap Wireless Intl Inc. Dba Cricket Comm Inc.
Wireless
720-277
Denver
Icg Telecom Group - Co
Landline
720-278
Denver
Tw Telecom Of Colorado Llc - Co
Landline
720-279
Denver
Tw Telecom Of Colorado Llc - Co
Landline
720-280
Denver
T-mobile Usa Inc.
Wireless
720-281
Westminster
Cellco Partnership Dba Verizon Wireless - Co
Wireless
720-282
Englewood
Tw Telecom Of Colorado Llc - Co
Landline
720-283
Littleton
Qwest Corporation
Landline
720-284
Englewood
Xo Colorado Llc
Landline
720-285
Denver
Xo Colorado Llc
Landline
720-286
Denver
Teleport Communications America Llc - Co
Landline
720-287
Denver
Comcast Phone Of Colorado Llc - Co
Landline
720-288
Denver
Bandwidth.com Clec Llc - Co
Landline
720-289
Denver
New Cingular Wireless Pcs Llc
Wireless
720-290
Englewood
Sprint Spectrum L.p.
Wireless
720-291
Englewood
Sprint Spectrum L.p.
Wireless
720-292
Denver
New Cingular Wireless Pcs Llc
Wireless
720-293
Englewood
Xo Colorado Llc
Landline
720-294
Englewood
Xo Colorado Llc
Landline
720-295
Denver
Bandwidth.com Clec Llc - Co
Landline
720-296
Denver
Leap Wireless Intl Inc. Dba Cricket Comm Inc.
Wireless
720-297
Denver
Leap Wireless Intl Inc. Dba Cricket Comm Inc.
Wireless
720-298
Denver
Leap Wireless Intl Inc. Dba Cricket Comm Inc.
Wireless
720-299
Denver
T-mobile Usa Inc.
Wireless
720-300
Englewood
Sprint Spectrum L.p.
Wireless
720-301
Englewood
Sprint Spectrum L.p.
Wireless
720-302
Aurora
Teleport Communications America Llc - Co
Landline
720-304
Boulder
Qwest Corporation
Landline
720-305
Denver
Tw Telecom Of Colorado Llc - Co
Landline
720-306
Englewood
Eschelon Telecom Of Colorado Inc. - Co
Landline
720-307
Henderson
At&t Local
Landline
720-308
Denver
New Cingular Wireless Pcs Llc
Wireless
720-309
Denver
Leap Wireless Intl Inc. Dba Cricket Comm Inc.
Wireless
720-310
Aurora
Teleport Communications America Llc - Co
Landline
720-312
Englewood
Sprint Spectrum L.p.
Wireless
720-313
Englewood
Sprint Spectrum L.p.
Wireless
720-314
Englewood
Sprint Spectrum L.p.
Wireless
720-315
Englewood
360networks (usa) Inc. - Co
Landline
720-316
Denver
Bandwidth.com Clec Llc - Co
Landline
720-317
Englewood
Sprint Spectrum L.p.
Wireless
720-318
Englewood
Sprint Spectrum L.p.
Wireless
720-319
Englewood
Sprint Spectrum L.p.
Wireless
720-320
Denver
New Cingular Wireless Pcs Llc
Wireless
720-321
Denver
Qwest Corporation
Landline
720-322
Commerce City
Qwest Corporation
Landline
720-323
Denver
T-mobile Usa Inc.
Wireless
720-324
Denver
Comcast Phone Of Colorado Llc - Co
Landline
720-325
Denver
T-mobile Usa Inc.
Wireless
720-326
Denver
New Cingular Wireless Pcs Llc
Wireless
720-327
Denver
Leap Wireless Intl Inc. Dba Cricket Comm Inc.
Wireless
720-328
Denver
Comcast Phone Of Colorado Llc - Co
Landline
720-329
Denver
Leap Wireless Intl Inc. Dba Cricket Comm Inc.
Wireless
720-330
Denver
Icg Telecom Group - Co
Landline
720-331
Englewood
Sprint Spectrum L.p.
Wireless
720-332
Englewood
Qwest Corporation
Landline
720-333
Englewood
Sprint Spectrum L.p.
Wireless
720-334
Englewood
Sprint Spectrum L.p.
Wireless
720-335
Englewood
Sprint Spectrum L.p.
Wireless
720-336
Denver
Bandwidth.com Clec Llc - Co
Landline
720-337
Denver
Qwest Corporation
Landline
720-338
Denver
Leap Wireless Intl Inc. Dba Cricket Comm Inc.
Wireless
720-339
Englewood
Sprint Spectrum L.p.
Wireless
720-340
Denver
Cellco Partnership Dba Verizon Wireless - Co
Wireless
720-341
Denver
T-mobile Usa Inc.
Wireless
720-342
Denver
At&t Local
Landline
720-343
Denver
Icg Telecom Group - Co
Landline
720-344
Littleton
Qwest Corporation
Landline
720-345
Denver
Zippytech Incorporated
Landline
720-346
Westminster
Cellco Partnership Dba Verizon Wireless - Co
Wireless
720-347
Denver
Tw Telecom Of Colorado Llc - Co
Landline
720-348
Littleton
Qwest Corporation
Landline
720-349
Denver
At&t Local
Landline
720-350
Englewood
Sprint Spectrum L.p.
Wireless
720-351
Englewood
Sprint Spectrum L.p.
Wireless
720-352
Denver
T-mobile Usa Inc.
Wireless
720-353
Englewood
Sprint Spectrum L.p.
Wireless
720-354
Englewood
Tw Telecom Of Colorado Llc - Co
Landline
720-355
Westminster
Cellco Partnership Dba Verizon Wireless - Co
Wireless
720-356
Denver
At&t Local
Landline
720-357
Englewood
New Cingular Wireless Pcs Llc
Wireless
720-358
Denver
Mcimetro Access Transmission Services Llc
Landline
720-359
Denver
Qwest Corporation
Landline
720-360
Denver
New Cingular Wireless Pcs Llc
Wireless
720-362
Englewood
Qwest Corporation
Landline
720-363
Englewood
Sprint Spectrum L.p.
Wireless
720-364
Denver
Leap Wireless Intl Inc. Dba Cricket Comm Inc.
Wireless
720-365
Denver
Leap Wireless Intl Inc. Dba Cricket Comm Inc.
Wireless
720-366
Denver
Leap Wireless Intl Inc. Dba Cricket Comm Inc.
Wireless
720-367
Englewood
Xo Colorado Llc
Landline
720-368
Englewood
Xo Colorado Llc
Landline
720-369
Denver
New Cingular Wireless Pcs Llc
Wireless
720-370
Denver
Bandwidth.com Clec Llc - Co
Landline
720-371
Englewood
Sprint Spectrum L.p.
Wireless
720-373
Englewood
Sprint Spectrum L.p.
Wireless
720-374
Denver
Qwest Corporation
Landline
720-375
Denver
Commnet Wireless Llc
Wireless
720-376
Westminster
Eschelon Telecom Of Colorado Inc. - Co
Landline
720-377
Englewood
Xo Colorado Llc
Landline
720-378
Denver
New Cingular Wireless Pcs Llc
Wireless
720-379
Denver
Icg Telecom Group - Co
Landline
720-380
Englewood
Sprint Spectrum L.p.
Wireless
720-381
Denver
Comcast Phone Of Colorado Llc - Co
Landline
720-382
Denver
Eschelon Telecom Of Colorado Inc. - Co
Landline
720-383
Westminster
Cellco Partnership Dba Verizon Wireless - Co
Wireless
720-384
Westminster
Xo Colorado Llc
Landline
720-385
Denver
Xo Colorado Llc
Landline
720-386
Denver
Bandwidth.com Clec Llc - Co
Landline
720-387
Aurora
Tw Telecom Of Colorado Llc - Co
Landline
720-388
Denver
Cellco Partnership Dba Verizon Wireless - Co
Wireless
720-389
Englewood
Xo Colorado Llc
Landline
720-392
Englewood
Ymax Communications Corp. - Co
Landline
720-393
Aurora
Tw Telecom Of Colorado Llc - Co
Landline
720-394
Denver
T-mobile Usa Inc.
Wireless
720-395
Denver
At&t Local
Landline
720-396
Denver
At&t Local
Landline
720-397
Denver
At&t Local
Landline
720-398
Denver
Leap Wireless Intl Inc. Dba Cricket Comm Inc.
Wireless
720-399
Denver
Level 3 Communications Llc - Co
Landline
720-400
Denver
T-mobile Usa Inc.
Wireless
720-401
Denver
T-mobile Usa Inc.
Wireless
720-402
Englewood
Eschelon Telecom Of Colorado Inc. - Co
Landline
720-404
Denver
Leap Wireless Intl Inc. Dba Cricket Comm Inc.
Wireless
720-406
Boulder
Qwest Corporation
Landline
720-407
Denver
Cbeyond Communications Llc - Co
Landline
720-408
Denver
Bandwidth.com Clec Llc - Co
Landline

Top prefixes in this area code

720-200→720-201→720-202→720-203→720-204→720-205→720-206→720-207→
Why area code pages matter in reverse phone lookup

Area code pages help visitors understand the wider calling region connected to a number. While a full reverse phone lookup page focuses on one specific caller, an area code page shows the bigger picture by grouping prefixes, cities, and carrier patterns under the same first three digits. This makes it easier to spot whether a number appears local, regional, or part of a service area the visitor already recognizes.

For phone directory websites, area code pages also improve browsing. A user can start with a missed call, discover the number's first three digits, and then move into the related area code to see supporting location data and a list of active prefixes. That layered navigation creates a better research experience and gives visitors more confidence when they continue into a specific number page.