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Area Codes > 815 > Central Office Codes

Exchange Rate Center State Operating Company
815-300 CHICGOZN01 IL AMERITECH ILLINOIS
815-301 CRYSTAL LK IL BROADWING COMMUNICATIONS, LLC - IL
815-302 JOLIET IL SPRINT SPECTRUM L.P.
815-303 PRINCETON IL ILLINOIS VALLEY CELLULAR RSA 2-I PARTNERSHIP
815-304 KANKAKEE IL BROADWING COMMUNICATIONS, LLC - IL
815-305 GARDNER IL BROADWING COMMUNICATIONS, LLC - IL
815-306 LOCKPORT IL BROADWING COMMUNICATIONS, LLC - IL
815-307 MCHENRY IL BROADWING COMMUNICATIONS, LLC - IL
815-308 WOODSTOCK IL BROADWING COMMUNICATIONS, LLC - IL
815-309 SHANNON IL AERO COMMUNICATIONS, INC. - IL
815-310 UTICA IL BROADWING COMMUNICATIONS, LLC - IL
815-311 IL
815-313 OTTAWA IL BROADWING COMMUNICATIONS, LLC - IL
815-314 MANHATTAN IL BROADWING COMMUNICATIONS, LLC - IL
815-315 ROCKFORD IL LEVEL 3 COMMUNICATIONS, LLC - IL
815-316 ROCKFORD IL TDS METROCOM INC.-IL
815-317 CRESCENTCY IL BROADWING COMMUNICATIONS, LLC - IL
815-318 MORRIS IL BROADWING COMMUNICATIONS, LLC - IL
815-319 ROCKFORD IL UNITED STATES CELLULAR CORP. - ILLINOIS
815-320 KANKAKEE IL ARCH WIRELESS HOLDINGS, INC.
815-321 WOODSTOCK IL XO ILLINOIS, INC.
815-322 MCHENRY IL LEVEL 3 COMMUNICATIONS, LLC - IL
815-323 BELVIDERE IL LEVEL 3 COMMUNICATIONS, LLC - IL
815-324 JOLIET IL ARCH WIRELESS HOLDINGS, INC.
815-325 JOLIET IL NEW CINGULAR WIRELESS PCS, LLC - IL
815-326 OGLESBY IL NEW CINGULAR WIRELESS PCS, LLC - IL
815-327 PLAINFIELD IL BROADWING COMMUNICATIONS, LLC - IL
815-328 LOCKPORT IL BROADWING COMMUNICATIONS, LLC - IL
815-329 LA SALLE IL ARCH WIRELESS HOLDINGS, INC.
815-330 CRESCENTCY IL GLOBALCOM, INC.-IL
815-331 MCHENRY IL BROADWING COMMUNICATIONS, LLC - IL
815-332 CHERRY VLY IL VERIZON NORTH INC.-IL
815-333 WOODSTOCK IL BROADWING COMMUNICATIONS, LLC - IL
815-334 WOODSTOCK IL AMERITECH ILLINOIS
815-335 WINNEBAGO IL VERIZON NORTH INC.-IL
815-336 COLETA IL CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL
815-337 WOODSTOCK IL AMERITECH ILLINOIS
815-338 WOODSTOCK IL AMERITECH ILLINOIS
815-339 GRANVILLE IL VERIZON NORTH INC.-IL (CONTEL)
815-340 LA MOILLE IL COMCAST PHONE OF ILLINOIS, LLC - IL
815-341 JOLIET IL NEW CINGULAR WIRELESS PCS, LLC - IL
815-342 JOLIET IL NEW CINGULAR WIRELESS PCS, LLC - IL
815-343 OGLESBY IL NEW CINGULAR WIRELESS PCS, LLC - IL
815-344 MCHENRY IL AMERITECH ILLINOIS
815-345 WOODSTOCK IL LEVEL 3 COMMUNICATIONS, LLC - IL
815-346 GARDNER IL BROADWING COMMUNICATIONS, LLC - IL
815-347 WOODSTOCK IL CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
815-348 POPLAR GRV IL ESSEX TELCOM, INC.
815-349 MCHENRY IL XO ILLINOIS, INC.
815-350 FRANKLIGRV IL ESSEX TELCOM, INC.
815-351 KANKAKEE IL CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
815-352 KANKAKEE IL BROADWING COMMUNICATIONS, LLC - IL
815-353 WOODSTOCK IL CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
815-354 WOODSTOCK IL CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
815-355 WOODSTOCK IL CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
815-356 CRYSTAL LK IL AMERITECH ILLINOIS
815-357 SENECA IL AMERITECH ILLINOIS
815-358 CORNELL IL C-R TELEPHONE CO.
815-359 HARMON IL GALLATIN RIVER COMMUNICATIONS
815-360 SUBLETTE IL ESSEX TELCOM, INC.
815-361 MANHATTAN IL BROADWING COMMUNICATIONS, LLC - IL
815-362 GERMAN VLY IL VERIZON NORTH INC.-IL (CONTEL)
815-363 MCHENRY IL AMERITECH ILLINOIS
815-364 MORRIS IL BROADWING COMMUNICATIONS, LLC - IL
815-365 REDDICK IL VERIZON NORTH INC.-IL
815-366 OTTAWA IL BROADWING COMMUNICATIONS, LLC - IL
815-367 WINSLOW IL VERIZON NORTH INC.-IL (CONTEL)
815-368 LOSTANT IL VERIZON NORTH INC.-IL
815-369 LENA IL VERIZON NORTH INC.-IL (CONTEL)
815-370 KANKAKEE IL CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
815-371 UTICA IL BROADWING COMMUNICATIONS, LLC - IL
815-372 LOCKPORT IL AMERITECH ILLINOIS
815-373 JOLIET IL ADBEEP, LLC
815-374 JOLIET IL ADBEEP, LLC
815-375 DE KALB IL UNITED STATES CELLULAR CORP. - ILLINOIS
815-376 OHIO IL VERIZON NORTH INC.-IL
815-377 CRESCENTCY IL BROADWING COMMUNICATIONS, LLC - IL
815-378 ROCKFORD IL NEXTEL COMMUNICATIONS, INC.
815-379 WALNUT IL VERIZON NORTH INC.-IL
815-380 STERLING IL ESSEX TELCOM, INC.
815-381 ROCKFORD IL AMERITECH ILLINOIS
815-382 WOODSTOCK IL NEW CINGULAR WIRELESS PCS, LLC - IL
815-383 CRESCENTCY IL NEW CINGULAR WIRELESS PCS, LLC - IL
815-384 CRESTON IL VERIZON NORTH INC.-IL (CONTEL)
815-385 MCHENRY IL AMERITECH ILLINOIS
815-386 KANKAKEE IL CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL
815-387 ROCKFORD IL AMERITECH ILLINOIS
815-388 MCHENRY IL NEXTEL COMMUNICATIONS, INC.
815-389 SO BELOIT IL AMERITECH ILLINOIS
815-390 BRAIDWOOD IL COMCAST PHONE OF ILLINOIS, LLC - IL
815-391 ROCKFORD IL AMERITECH ILLINOIS
815-392 KINSMAN IL KINSMAN MUTUAL TELEPHONE CO.
815-393 MONROE CTR IL VERIZON NORTH INC.-IL (CONTEL)
815-394 ROCKFORD IL AMERITECH ILLINOIS
815-395 ROCKFORD IL AMERITECH ILLINOIS
815-396 STEWARD IL VERIZON NORTH INC.-IL (CONTEL)
815-397 ROCKFORD IL AMERITECH ILLINOIS
815-398 ROCKFORD IL AMERITECH ILLINOIS
815-399 ROCKFORD IL AMERITECH ILLINOIS
815-401 KANKAKEE IL LEVEL 3 COMMUNICATIONS, LLC - IL