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Area Codes > 510 > Central Office Codes

Exchange Rate Center State Operating Company
510-888 HAYWARD CA PACIFIC BELL
510-889 HAYWARD CA PACIFIC BELL
510-891 OKLD MN-PD CA PACIFIC BELL
510-892 HAYWARD CA PAC - WEST TELECOMM, INC.
510-893 OKLD MN-PD CA PACIFIC BELL
510-894 FRNK MAIN CA COMCAST PHONE OF CALIFORNIA, LLC - CA
510-895 OKLD TRNID CA PACIFIC BELL
510-896 FRNK MAIN CA TELEPORT COMMUNICATIONS GROUP - SAN FRANCISCO
510-897 FRNK OLIVR CA TELEPORT COMMUNICATIONS GROUP - SAN FRANCISCO
510-898 OKLD BKLY CA TELEPORT COMMUNICATIONS GROUP - SAN FRANCISCO
510-899 OKLD MN-PD CA PAC - WEST TELECOMM, INC.
510-903 OKLD MN-PD CA BROADWING COMMUNICATINS. LLC - CA
510-904 OKLD TRNID CA BROADWING COMMUNICATINS. LLC - CA
510-907 OKLD MN-PD CA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
510-908 OKLD MN-PD CA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
510-909 HAYWARD CA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
510-910 OKLD MN-PD CA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
510-911 CA
510-912 OKLD MN-PD CA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
510-913 OKLD MN-PD CA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
510-914 OKLD MN-PD CA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
510-915 OKLD MN-PD CA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
510-917 OKLD MN-PD CA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
510-918 OKLD MN-PD CA BLUE LICENSES HOLDING, LLC
510-919 OKLD MN-PD CA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
510-920 OKLD FRTVL CA NETWORK SERVICES LLC
510-921 HAYWARD CA TELEPORT COMMUNICATIONS GROUP - SAN FRANCISCO
510-922 OKLD MN-PD CA PACIFIC BELL
510-923 OKLD MN-PD CA PACIFIC BELL
510-924 OKLD TRNID CA GLOBAL CROSSING LOCAL SERVICES, INC.-CA
510-926 OKLD BKLY CA INTEGRATED COMMUNICATIONS CONSULTANTS, INC. - CA
510-927 OKLD FRTVL CA GLOBAL CROSSING LOCAL SERVICES, INC.-CA
510-928 OKLD MN-PD CA BLUE LICENSES HOLDING, LLC
510-929 OKLD MN-PD CA ARCH WIRELESS HOLDINGS, INC.
510-931 HAYWARD CA 01 COMMUNICATIONS, INC. - CA
510-932 RICHMOND CA SPRINT SPECTRUM L.P.
510-933 FRNK OLIVR CA U.S. TELEPACIFIC CORP. - CA
510-936 FRNK MAIN CA PACIFIC BELL
510-938 FRNK MAIN CA METRO PCS, INC.
510-940 HAYWARD CA MPOWER COMMUNICATIONS CORP. - CA
510-943 FRNK MAIN CA TIME WARNER TELECOM OF CALIFORNIA, L.P.
510-948 HRCUL-RODE CA XO CALIFORNIA, INC.
510-950 CA
510-952 FRNK GRNLF CA NEXTEL COMMUNICATIONS, INC.
510-957 OKLD TRNID CA ALLEGIANCE TELECOM, INC. - CA
510-958 CA
510-959 CA
510-962 HAYWARD CA LEVEL 3 COMMUNICATIONS, LLC - CA
510-964 ELSBR-PINL CA PACIFIC BELL
510-965 RICHMOND CA PACIFIC BELL
510-966 FRNK GRNLF CA NETWORK SERVICES LLC
510-967 OKLD FRTVL CA SPRINT SPECTRUM L.P.
510-968 FRNK MAIN CA COOK TELECOM, INC.
510-969 OKLD TRNID CA TIME WARNER TELECOM OF CALIFORNIA, L.P.
510-970 RICHMOND CA PACIFIC BELL
510-972 FRNK GRNLF CA COMCAST PHONE OF CALIFORNIA, LLC - CA
510-976 CA
510-977 FRNK MAIN CA NETWORK SERVICES LLC
510-978 OKLD ALMD CA LEVEL 3 COMMUNICATIONS, LLC - CA
510-979 FRNK OLIVR CA PACIFIC BELL
510-980 OKLD MN-PD CA ARCH WIRELESS HOLDINGS, INC.
510-981 OKLD BKLY CA PACIFIC BELL
510-982 OKLD BKLY CA MCI WORLDCOM COMMUNICATIONS, INC., CA
510-984 OKLD BKLY CA LEVEL 3 COMMUNICATIONS, LLC - CA
510-985 OKLD MN-PD CA PACIFIC BELL
510-986 OKLD MN-PD CA PACIFIC BELL
510-987 OKLD MN-PD CA PACIFIC BELL
510-991 FRNK GRNLF CA PAC - WEST TELECOMM, INC.
510-992 OKLD MN-PD CA PAC - WEST TELECOMM, INC.
510-994 FRNK OLIVR CA NETWORK SERVICES LLC
510-995 OKLD ALMD CA U.S. TELEPACIFIC CORP. - CA
510-996 FRNK MAIN CA GLOBAL CROSSING LOCAL SERVICES, INC.-CA
510-997 OKLD MN-PD CA NETWORK SERVICES LLC