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Area Codes > 972 > Central Office Codes

Exchange Rate Center State Operating Company
972-500 IRVING TX ARCH WIRELESS HOLDINGS, INC.
972-501 DALLAS TX SOUTHWESTERN BELL
972-502 DALLAS TX MCIMETRO, ATS, INC.
972-503 DALLAS TX SOUTHWESTERN BELL
972-504 GRANDPRARI TX SOUTHWESTERN BELL
972-505 IRVING TX MCIMETRO, ATS, INC.
972-506 DALLAS TX SOUTHWESTERN BELL
972-507 IRVING TX GTE-SW DBA VERIZON SW INC.-TX
972-508 PROSPER TX GRANDE COMMUNICATIONS NETWORKS, INC. - TX
972-509 PLANO TX GTE-SW DBA VERIZON SW INC.-TX
972-510 IRVING TX AT&T LOCAL
972-511 TX
972-512 CARROLLTON TX MCIMETRO, ATS, INC.
972-513 IRVING TX GTE-SW DBA VERIZON SW INC.-TX
972-514 IRVING TX GTE-SW DBA VERIZON SW INC.-TX
972-515 RED OAK TX SOUTHWESTERN BELL
972-516 PLANO TX GTE-SW DBA VERIZON SW INC.-TX
972-517 PLANO TX GTE-SW DBA VERIZON SW INC.-TX
972-518 IRVING TX GTE-SW DBA VERIZON SW INC.-TX
972-519 PLANO TX GTE-SW DBA VERIZON SW INC.-TX
972-520 IRVING TX ARCH WIRELESS HOLDINGS, INC.
972-521 ALLEN TX TIME WARNER COMMUNICATIONS AXS OF AUSTIN, TX
972-522 GRANDPRARI TX SOUTHWESTERN BELL
972-523 GRANDPRARI TX NEW CINGULAR WIRELESS PCS, LLC - IL
972-524 TERRELL TX SOUTHWESTERN BELL
972-525 WILMER TX GTE-SW DBA VERIZON SW INC.-TX (CONTEL)
972-526 PLANO TX SOUTHWESTERN BELL TELEPHONE COMPANY - TX
972-527 PLANO TX GTE-SW DBA VERIZON SW INC.-TX
972-528 DALLAS TX SOUTHWESTERN BELL
972-529 MCKINNEY TX SOUTHWESTERN BELL
972-530 PLANO TX GTE-SW DBA VERIZON SW INC.-TX
972-531 PLANO TX AT&T LOCAL
972-532 DALLAS TX MCIMETRO, ATS, INC.
972-533 GRANDPRARI TX NEW CINGULAR WIRELESS PCS, LLC - IL
972-534 DLFTWTARPT TX MCIMETRO, ATS, INC.
972-535 PLANO TX MCIMETRO, ATS, INC.
972-536 IRVING TX MCIMETRO, ATS, INC.
972-537 LEWISVILLE TX GTE-SW DBA VERIZON SW INC.-TX
972-538 LEWISVILLE TX MCIMETRO, ATS, INC.
972-539 LEWISVILLE TX GTE-SW DBA VERIZON SW INC.-TX
972-540 MCKINNEY TX SOUTHWESTERN BELL
972-541 IRVING TX GTE-SW DBA VERIZON SW INC.-TX
972-542 MCKINNEY TX SOUTHWESTERN BELL
972-543 PLANO TX MCIMETRO, ATS, INC.
972-544 FERRIS TX GTE-SW DBA VERIZON SW INC.-TX (CONTEL)
972-545 IRVING TX ARCH WIRELESS HOLDINGS, INC.
972-546 DALLAS TX GLOBAL CROSSING LOCAL SERVICES, INC.-TX
972-547 MCKINNEY TX SOUTHWESTERN BELL
972-548 MCKINNEY TX SOUTHWESTERN BELL
972-549 MCKINNEY TX GRANDE COMMUNICATIONS NETWORKS, INC. - TX
972-550 IRVING TX GTE-SW DBA VERIZON SW INC.-TX
972-551 TERRELL TX SOUTHWESTERN BELL
972-552 FORNEY TX SOUTHWESTERN BELL
972-553 PLANO TX GRANDE COMMUNICATIONS NETWORKS, INC. - TX
972-554 IRVING TX GTE-SW DBA VERIZON SW INC.-TX
972-555 DALLAS TX SOUTHWESTERN BELL
972-556 DALLAS TX SOUTHWESTERN BELL
972-557 DALLAS TX SOUTHWESTERN BELL
972-558 GRANDPRARI TX SOUTHWESTERN BELL
972-559 DALLAS TX SOUTHWESTERN BELL
972-560 DALLAS TX MCI WORLDCOM COMMUNICATIONS, INC. - TX
972-561 GRANDPRARI TX SOUTHWESTERN BELL
972-562 MCKINNEY TX SOUTHWESTERN BELL
972-563 TERRELL TX SOUTHWESTERN BELL
972-564 FORNEY TX SOUTHWESTERN BELL
972-565 GRANDPRARI TX ARCH WIRELESS HOLDINGS, INC.
972-566 DALLAS TX SOUTHWESTERN BELL
972-567 GRANDPRARI TX NEW CINGULAR WIRELESS PCS, LLC - IL
972-568 MCKINNEY TX ARCH WIRELESS HOLDINGS, INC.
972-569 MCKINNEY TX SOUTHWESTERN BELL
972-570 IRVING TX GTE-SW DBA VERIZON SW INC.-TX
972-571 GRANDPRARI TX NEW CINGULAR WIRELESS PCS, LLC - IL
972-572 DALLAS TX SOUTHWESTERN BELL
972-573 IRVING TX CBEYOND COMMUNICATIONS OF TEXAS, LP-TX
972-574 DLFTWTARPT TX GTE-SW DBA VERIZON SW INC.-TX
972-575 PLANO TX GTE-SW DBA VERIZON SW INC.-TX
972-576 RED OAK TX SOUTHWESTERN BELL
972-577 PLANO TX MCIMETRO, ATS, INC.
972-578 PLANO TX GTE-SW DBA VERIZON SW INC.-TX
972-579 IRVING TX GTE-SW DBA VERIZON SW INC.-TX
972-580 IRVING TX GTE-SW DBA VERIZON SW INC.-TX
972-581 DALLAS TX MCIMETRO, ATS, INC.
972-582 IRVING TX GTE-SW DBA VERIZON SW INC.-TX
972-583 DALLAS TX SOUTHWESTERN BELL TELEPHONE COMPANY - TX
972-584 DALLAS TX SOUTHWESTERN BELL
972-585 IRVING TX ARCH WIRELESS HOLDINGS, INC.
972-586 DLFTWTARPT TX GTE-SW DBA VERIZON SW INC.-TX
972-587 DALLAS TX TELEPORT COMMUNICATIONS GROUP - DALLAS
972-588 DALLAS TX SOUTHWESTERN BELL
972-589 GRANDPRARI TX ARCH WIRELESS HOLDINGS, INC.
972-590 DALLAS TX XSPEDIUS MANAGEMENT CO SWITCHED SVCS FT WORTH TX
972-591 DALLAS TX SOUTHWESTERN BELL
972-592 IRVING TX ARCH WIRELESS HOLDINGS, INC.
972-593 IRVING TX ARCH WIRELESS HOLDINGS, INC.
972-594 IRVING TX GTE-SW DBA VERIZON SW INC.-TX
972-595 GRANDPRARI TX SOUTHWESTERN BELL
972-596 PLANO TX GTE-SW DBA VERIZON SW INC.-TX
972-597 XXXXXXXXXX TX TEXAS INSTRUMENTS, INC.
972-598 XXXXXXXXXX TX TEXAS INSTRUMENTS, INC.
972-599 PLANO TX GTE-SW DBA VERIZON SW INC.-TX