CABBI, IL — MD

CADIZ, OH — CFX

CAIDY, GA — CYR

CAIRN MOUNTAIN, AK — CRN

CAIRNS, AL — OZR

CAIRO, IL — CIR

CALDE, IL — CJ

CALEDONIA, MS — CBM

CALGARY, CANADA — YYC

CALOO, FL — FM

CALVERTON, NY — CCC

CAMARILLO, CA — CMA

CAMBRIDGE, NY — CAM

CAMOR, PA — VV

CAMP, NC — CPC

CAMP GUERNSEY, WY — GYZ

CAMP PENDLETON, CA — NFG

CANARSIE, NY — CRI

CANNON, NM — CVS

CAPE CHARLES, VA — CCV

CAPE GIRARDEAU, MO — CGI

CAPE LISBURNE, AK — LUR

CAPE NEWENHAM, AK — EHM

CAPE ROMANZOF, AK — CZF

CAPE ROMANZOF, AK — CZF

CAPITAN, NM — CEP

CAPOK, FL — PI

CARBON, UT — PUC

CARDINAL, MO — CSX

CARLETON, MI — CRL

CARLSBAD, NM — CNM

CARLZ, NM — CV

CARMEL, NY — CMK

CARROLLTON, GA — GPQ

CASANOVA, VA — CSN

CASTLE, PA — UCP

CATCH, IN — JV

CAVERNS, VA — LUA

CEDAR, GA — AA

CEDAR CREEK, TX — CQY

CEDAR LAKE, NJ — VCN

CEDAR RAPIDS, IA — CID

CENTENNIAL, CO — APA

CENTER POINT, TX — CSI

CENTEX, TX — CWK

CENTRAL CITY, KY — CCT

CENTRALIA, IL — ENL

CERCY, AR — DS

CHAMBERS, VA — NGU

CHAMPAIGN, IL — CMI

CHANDALAR LAKE, AK — CQR

CHANUTE, KS — CNU

CHAPARROSA RANCH, TX — CPZ

CHAPPELL, NE — CNP

CHARDON, OH — CXR

CHARLESTON, SC — CHS

CHARLESTON, WV — HVQ

CHARLOTTE, NC — CLT

CHARLOTTE, NC — CLT

CHENA, AK — CUN

CHEROKEE, WY — CKW

CHERRY POINT, NC — NKT

CHESTER, MA — CTR

CHESTER, SC — DCM

CHESTER, SC — XKD

CHESTERFIELD, SC — CTF

CHEYENNE, WY — CYS

CHICAGO, IL — GCO

CHICAGO HEIGHTS, IL — CGT

CHILDRESS, TX — CDS

CHINA LAKE, CA — NID

CHINOOK, AK — AUB

CHISUM, NM — CME

CHOCOWINITY, NC — RNW

CHOO CHOO, TN — GQO

CHRLZ, SD — BK

CIMARRON, NM — CIM

CINCINNATI, KY — CVG

CINCINNATI MUNI/LUNKEN, OH — LUK

CLAM COVE, AK — CMJ

CLAREMONT, NH — CNH

CLARION, PA — CIP

CLARKSBURG, WV — CKB

CLARKSVILLE, TN — CKV

CLEVELAND, OH — CLE

CLIFS, IN — BA

CLINTON, NC — CTZ

CLOVIS, CA — CZQ

COALDALE, NV — OAL

COBBS, OH — DD

CODY, WY — COD

COEUR D'ALENE, ID — COE

COFFEE COUNTY, GA — OWC

COFIELD, NC — CVI

COGHLAN ISLAND, AK — CGL

COLD BAY, AK — CDB

COLLEGE STATION, TX — CLL

COLLIERS, SC — IRQ

COLORADO SPRINGS, CO — COS

COLTS NECK, NJ — COL

COLUMBIA, MO — COU

COLUMBIA, OR — CBU

COLUMBIA, SC — CAE

COLUMBUS, GA — CSG

COLUMBUS, NE — OLU

COLUMBUS, NM — CUS

CONCORD, CA — CCR

CONCORD, NH — CON

CONES, CO — ETL

CONEY, GA — OHY

CONROE, TX — PIK

COOK COUNTY, MN — CKC

COPPERTOWN, MT — CPN

CORONA, NM — CNX

CORPUS CHRISTI, TX — CRP

CORTEZ, CO — CEZ

CORVALLIS, OR — CVO

COTTONWOOD, ID — IDQ

COTULLA, TX — COT

COURT HOUSE, OH — CSS

COVINGTON, GA — CVC

COWBOY, TX — CVE

COWETA COUNTY, GA — EQQ

COYLE, NJ — CYN

COZAD, NE — OZB

CRAIG, FL — CRG

CRANBROOK, CANADA — YXC

CRAWFORDSVILLE, IN — CFJ

CRAZY WOMAN, WY — CZI

CRESCENT CITY, CA — CEC

CRESTVIEW, FL — CEW

CRIMSON, AL — LDK

CROSS CITY, FL — CTY

CROSSROADS, TX — CSZ

CUBLA, OH — HW

CULVR, GA — UMB

CUMBERLAND RIVER, KY — CDX

CUNNINGHAM, KY — CNG

CURRANT, NV — CNT

CUSTER COUNTY, NE — CUZ

CUT BANK, MT — CTB

CYPRESS, FL — CYY