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Area Code 773

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
IllinoisLocation
United StatesCountry
773Area Code
Area Code Overview
Area Code773
Primary LocationIllinois
CountryUnited States
Prefix Coverage200 listed prefixes
Prefixes in 773
773-201
Hinsdale
Usa Mobility Wireless Inc.
Wireless
773-202
Chicago
Ameritech Illinois
Landline
773-203
Willowbrook
New Cingular Wireless Pcs Llc - Il
Wireless
773-204
Hinsdale
Usa Mobility Wireless Inc.
Wireless
773-205
Chicago
Ameritech Illinois
Landline
773-206
Willowbrook
New Cingular Wireless Pcs Llc - Il
Wireless
773-207
Hinsdale
Usa Mobility Wireless Inc.
Wireless
773-208
Willowbrook
New Cingular Wireless Pcs Llc - Il
Wireless
773-209
Arlington Heights
Sprint Spectrum L.p.
Wireless
773-210
Chicago
Ameritech Illinois
Landline
773-212
Hinsdale
Usa Mobility Wireless Inc.
Wireless
773-213
Willowbrook
New Cingular Wireless Pcs Llc - Il
Wireless
773-214
Hinsdale
Usa Mobility Wireless Inc.
Wireless
773-215
Hinsdale
Usa Mobility Wireless Inc.
Wireless
773-216
Lombard
United States Cellular Corp. - Illinois
Wireless
773-217
Schaumburg
Denali Spectrum License Llc
Landline
773-218
Willowbrook
New Cingular Wireless Pcs Llc - Il
Wireless
773-219
Elgin
Sprint Spectrum L.p.
Wireless
773-220
Arlington Heights
Sprint Spectrum L.p.
Wireless
773-221
Chicago
Ameritech Illinois
Landline
773-222
Hinsdale
Usa Mobility Wireless Inc.
Wireless
773-223
Hinsdale
Usa Mobility Wireless Inc.
Wireless
773-224
Chicago
Ameritech Illinois
Landline
773-225
Chicago
T-mobile Usa Inc.
Wireless
773-226
Elgin
T-mobile Usa Inc.
Wireless
773-227
Chicago
Ameritech Illinois
Landline
773-228
Hinsdale
Usa Mobility Wireless Inc.
Wireless
773-229
Summit Argo
Ameritech Illinois
Landline
773-230
Buffalo Grove
New Cingular Wireless Pcs Llc - Il
Wireless
773-231
Chicago
Level 3 Communications Llc - Il
Landline
773-232
Hinsdale
Usa Mobility Wireless Inc.
Wireless
773-233
Chicago
Ameritech Illinois
Landline
773-234
Chicago
Bandwidth.com Clec Llc - Il
Landline
773-235
Chicago
Ameritech Illinois
Landline
773-236
Elgin
T-mobile Usa Inc.
Wireless
773-237
Chicago
Ameritech Illinois
Landline
773-238
Chicago
Ameritech Illinois
Landline
773-239
Chicago
Ameritech Illinois
Landline
773-240
Elgin
T-mobile Usa Inc.
Wireless
773-241
Elgin
Ameritech Illinois
Landline
773-242
Elgin
Ameritech Illinois
Landline
773-243
Wood Dale
Xo Illinois Inc.
Landline
773-244
Chicago
Ameritech Illinois
Landline
773-245
Chicago
Bandwidth.com Clec Llc - Il
Landline
773-246
Hammond
Indiana Paging Ntwk
Landline
773-247
Chicago
Ameritech Illinois
Landline
773-248
Chicago
Ameritech Illinois
Landline
773-249
Wood Dale
Mcimetro Access Transmission Services Llc
Landline
773-250
Bensenville
Mcimetro Access Transmission Services Llc
Landline
773-251
Buffalo Grove
New Cingular Wireless Pcs Llc - Il
Wireless
773-252
Chicago
Ameritech Illinois
Landline
773-253
Naperville
Teleport Communications America Llc - Il
Landline
773-254
Chicago
Ameritech Illinois
Landline
773-255
Buffalo Grove
New Cingular Wireless Pcs Llc - Il
Wireless
773-256
Chicago
Ameritech Illinois
Landline
773-257
Chicago
Ameritech Illinois
Landline
773-258
Hinsdale
Usa Mobility Wireless Inc.
Wireless
773-259
Willowbrook
New Cingular Wireless Pcs Llc - Il
Wireless
773-260
Chicago
Ameritech Illinois
Landline
773-261
Chicago
Ameritech Illinois
Landline
773-262
Chicago
Ameritech Illinois
Landline
773-263
Arlington Heights
Sprint Spectrum L.p.
Wireless
773-264
Chicago
Ameritech Illinois
Landline
773-265
Chicago
Ameritech Illinois
Landline
773-266
Willowbrook
New Cingular Wireless Pcs Llc - Il
Wireless
773-267
Chicago
Ameritech Illinois
Landline
773-268
Chicago
Ameritech Illinois
Landline
773-269
Bridgeview
At&t Local
Landline
773-270
Chicago
Sprint Spectrum L.p.
Wireless
773-271
Chicago
Ameritech Illinois
Landline
773-272
Bensenville
Mcimetro Access Transmission Services Llc
Landline
773-273
Evanston
Ameritech Illinois
Landline
773-274
Chicago
Ameritech Illinois
Landline
773-275
Chicago
Ameritech Illinois
Landline
773-276
Chicago
Ameritech Illinois
Landline
773-277
Chicago
Ameritech Illinois
Landline
773-278
Chicago
Ameritech Illinois
Landline
773-279
Chicago
Ameritech Illinois
Landline
773-280
Elgin
Sprint Spectrum L.p.
Wireless
773-281
Chicago
Ameritech Illinois
Landline
773-282
Chicago
Ameritech Illinois
Landline
773-283
Chicago
Ameritech Illinois
Landline
773-284
Chicago
Ameritech Illinois
Landline
773-285
Chicago
Ameritech Illinois
Landline
773-286
Chicago
Ameritech Illinois
Landline
773-287
Chicago
Ameritech Illinois
Landline
773-288
Chicago
Ameritech Illinois
Landline
773-289
Bensenville
Mcimetro Access Transmission Services Llc
Landline
773-290
Chicago
Broadwing Communications Llc - Il
Landline
773-291
Chicago
Ameritech Illinois
Landline
773-292
Chicago
Ameritech Illinois
Landline
773-293
Chicago
Ameritech Illinois
Landline
773-294
Buffalo Grove
New Cingular Wireless Pcs Llc - Il
Wireless
773-295
Chicago
Mcimetro Access Transmission Services Llc
Landline
773-296
Chicago
Ameritech Illinois
Landline
773-297
Lombard
United States Cellular Corp. - Illinois
Wireless
773-298
Chicago
Ameritech Illinois
Landline
773-299
Elmhurst
Mcimetro Access Transmission Services Llc
Landline
773-301
Arlington Heights
Sprint Spectrum L.p.
Wireless
773-302
Elmhurst
Sprint Spectrum L.p.
Wireless
773-303
Chicago
Allegiance Telecom Inc. - Il
Landline
773-304
Chicago
Allegiance Telecom Inc. - Il
Landline
773-305
Chicago
Allegiance Telecom Inc. - Il
Landline
773-306
Elgin
At&t Local
Landline
773-307
Willowbrook
New Cingular Wireless Pcs Llc - Il
Wireless
773-308
Chicago
Globalcom Inc.-il
Landline
773-309
Chicago
Paetec Communications Inc. - Il
Landline
773-310
Schaumburg
United States Cellular Corp. - Illinois
Wireless
773-312
Chicago
Sprint Spectrum L.p.
Wireless
773-313
Chicago
Allegiance Telecom Inc. - Il
Landline
773-314
Chicago
Allegiance Telecom Inc. - Il
Landline
773-315
Willowbrook
New Cingular Wireless Pcs Llc - Il
Wireless
773-316
Willowbrook
New Cingular Wireless Pcs Llc - Il
Wireless
773-317
Lombard
United States Cellular Corp. - Illinois
Wireless
773-318
Elgin
Cellco Partnership Dba Verizon Wireless - Il
Wireless
773-319
Elgin
United States Cellular Corp. - Illinois
Wireless
773-320
Willowbrook
New Cingular Wireless Pcs Llc - Il
Wireless
773-321
Chicago
Broadwing Communications Llc - Il
Landline
773-322
Elgin
T-mobile Usa Inc.
Wireless
773-323
Chicago
American Messaging (am) Inc.
Landline
773-324
Chicago
Ameritech Illinois
Landline
773-325
Chicago
Ameritech Illinois
Landline
773-326
Chicago
Broadwing Communications Llc - Il
Landline
773-327
Chicago
Ameritech Illinois
Landline
773-328
Chicago
Globalcom Inc.-il
Landline
773-329
Elgin
At&t Local
Landline
773-330
Willowbrook
New Cingular Wireless Pcs Llc - Il
Wireless
773-331
Bridgeview
Mci Worldcom Communications Inc. - Il
Landline
773-332
Elgin
Cellco Partnership Dba Verizon Wireless - Il
Wireless
773-333
Chicago
American Messaging (am) Inc.
Landline
773-334
Chicago
Ameritech Illinois
Landline
773-335
Hinsdale
Usa Mobility Wireless Inc.
Wireless
773-336
Chicago
Globalcom Inc.-il
Landline
773-337
Chicago
Allegiance Telecom Inc. - Il
Landline
773-338
Chicago
Ameritech Illinois
Landline
773-339
Elgin
Cellco Partnership Dba Verizon Wireless - Il
Wireless
773-340
Chicago
Ymax Communications Corp. - Il
Landline
773-341
Chicago
Globalcom Inc.-il
Landline
773-342
Chicago
Ameritech Illinois
Landline
773-343
Elgin
Cellco Partnership Dba Verizon Wireless - Il
Wireless
773-344
Elgin
Mcimetro Access Transmission Services Llc
Landline
773-345
Chicago
Allegiance Telecom Inc. - Il
Landline
773-346
Chicago
Allegiance Telecom Inc. - Il
Landline
773-347
Chicago
Allegiance Telecom Inc. - Il
Landline
773-348
Chicago
Ameritech Illinois
Landline
773-349
Elgin
Mcimetro Access Transmission Services Llc
Landline
773-350
Elgin
Cellco Partnership Dba Verizon Wireless - Il
Wireless
773-351
Willowbrook
New Cingular Wireless Pcs Llc - Il
Wireless
773-352
Hinsdale
Usa Mobility Wireless Inc.
Wireless
773-353
Chicago
Broadwing Communications Llc - Il
Landline
773-354
Bridgeview
Sprint Spectrum L.p.
Wireless
773-355
Arlington Heights
Ovation Communications Of Illinois Inc.
Landline
773-356
Chicago
Ameritech Illinois
Landline
773-357
Chicago
Globalcom Inc.-il
Landline
773-358
Bensenville
Mcimetro Access Transmission Services Llc
Landline
773-359
Bensenville
Mcimetro Access Transmission Services Llc
Landline
773-360
Chicago
Broadwing Communications Llc - Il
Landline
773-361
Chicago
Ameritech Illinois
Landline
773-362
Chicago
Paetec Communications Inc. - Il
Landline
773-363
Chicago
Ameritech Illinois
Landline
773-364
Chicago
Ovation Communications Of Illinois Inc.
Landline
773-365
Chicago
Allegiance Telecom Inc. - Il
Landline
773-366
Elgin
T-mobile Usa Inc.
Wireless
773-367
Buffalo Grove
Sprint Spectrum L.p.
Wireless
773-368
Bridgeview
Sprint Spectrum L.p.
Wireless
773-369
Willowbrook
New Cingular Wireless Pcs Llc - Il
Wireless
773-370
Lombard
United States Cellular Corp. - Illinois
Wireless
773-371
Chicago
Ameritech Illinois
Landline
773-372
Elgin
Cellco Partnership Dba Verizon Wireless - Il
Wireless
773-373
Chicago
Ameritech Illinois
Landline
773-374
Chicago
Ameritech Illinois
Landline
773-375
Chicago
Ameritech Illinois
Landline
773-376
Chicago
Ameritech Illinois
Landline
773-377
Chicago
Teleport Communications America Llc - Il
Landline
773-378
Chicago
Ameritech Illinois
Landline
773-379
Chicago
Ameritech Illinois
Landline
773-380
Park Ridge
Ameritech Illinois
Landline
773-381
Chicago
Ameritech Illinois
Landline
773-382
Chicago
Ovation Communications Of Illinois Inc.
Landline
773-383
Buffalo Grove
New Cingular Wireless Pcs Llc - Il
Wireless
773-384
Chicago
Ameritech Illinois
Landline
773-385
Chicago
Ameritech Illinois
Landline
773-386
Lombard
United States Cellular Corp. - Illinois
Wireless
773-387
Elgin
T-mobile Usa Inc.
Wireless
773-388
Chicago
Ameritech Illinois
Landline
773-389
Chicago
Allegiance Telecom Inc. - Il
Landline
773-390
Elgin
Cellco Partnership Dba Verizon Wireless - Il
Wireless
773-391
Willowbrook
New Cingular Wireless Pcs Llc - Il
Wireless
773-392
Lombard
United States Cellular Corp. - Illinois
Wireless
773-393
Hinsdale
Usa Mobility Wireless Inc.
Wireless
773-394
Chicago
Ameritech Illinois
Landline
773-395
Chicago
Ameritech Illinois
Landline
773-396
Elgin
Ovation Communications Of Illinois Inc.
Landline
773-397
Schaumburg
Denali Spectrum License Llc
Landline
773-398
Bridgeview
Sprint Spectrum L.p.
Wireless
773-399
Park Ridge
Ameritech Illinois
Landline
773-400
Chicago
American Messaging (am) Inc.
Landline
773-401
Willowbrook
New Cingular Wireless Pcs Llc - Il
Wireless
773-402
Willowbrook
New Cingular Wireless Pcs Llc - Il
Wireless
773-403
Lombard
United States Cellular Corp. - Illinois
Wireless

Top prefixes in this area code

773-201→773-202→773-203→773-204→773-205→773-206→773-207→773-208→
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.