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NPA: 346 [Rate centres in NPA 346] [Dial plan for NPA 346]

Block: A

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
346-200 A Houston TX HSTNTXYADS5  903C ONVOY, LLC - TX 560      
346-201 A Houston TX HSTOTX46DS0  7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560      
346-202 A Bammel TX HSTNTXYADS5  903C ONVOY, LLC - TX 560      
346-203 A Houston Suburban TX HSTATX750MD  829J PAETEC ITEL, LLC 560   2025-01-23   
346-204 A Houston TX HSTSTXJV6MD  508J CENTURYLINK COMMUNICATIONS, LLC 560      
346-205 A Langham Creek TX HSTSTXJV6MD  508J CENTURYLINK COMMUNICATIONS, LLC 560      
346-206 A Satsuma TX HSTNTXYADS5  903C ONVOY, LLC - TX 560      
346-207 A Houston Suburban TX HSTNTXBUDS0  9533 SOUTHWESTERN BELL 560      
346-208 A Dickinson TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
346-209 A Liverpool TX HSTSTXJV6MD  508J CENTURYLINK COMMUNICATIONS, LLC 560      
346-210 A Richmond-Rosenberg TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-212 A Houston TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-213 A Langham Creek TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
346-214 A Houston TX HSTNTXYADS5  903C ONVOY, LLC - TX 560      
346-215 A Alvin TX HSTNTXYADS5  903C ONVOY, LLC - TX 560      
346-216 A Baytown TX HSTOTX46DS0  7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560      
346-217 A Houston TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
346-218 A Cypress TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-219 A Houston Suburban TX HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560      
346-220 A Spring TX HSTNTXYADS5  903C ONVOY, LLC - TX 560      
346-221 A Houston TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
346-222 A La Porte TX HSTNTXJADS6  319D FOREMOST TELECOMMUNICATIONS CORPORATION - TX 560      
346-223 A Houston TX HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560      
346-224 A Spring TX HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560      
346-225 A Tomball TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
346-226 A Houston TX HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560      
346-227 A Houston TX HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560      
346-228 A Houston TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
346-229 A Houston Suburban TX HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
346-230 A Apollo TX HSTNTXYADS5  903C ONVOY, LLC - TX 560      
346-231 A Houston TX HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
346-232 A Houston TX HSTOTX46DS0  7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560      
346-233 A Baytown TX BYTWTXXAHMD  903C ONVOY, LLC - TX 560      
346-234 A Houston TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
346-235 A Bammel TX HSTNTXYADS5  903C ONVOY, LLC - TX 560      
346-236 A Tomball TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
346-237 A Houston TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
346-238 A Houston TX HSTGTX05AMD  7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
346-239 A Richmond-Rosenberg TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-240 A Houston TX HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560      
346-241 A Houston TX HSTNTXYADS5  903C ONVOY, LLC - TX 560      
346-242 A Langham Creek TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
346-243 A Barker TX HSTDTXBGBMD  5562 METROPCS, INC. 560      
346-244 A Satsuma TX HSTDTXBGBMD  5562 METROPCS, INC. 560      
346-245 A Stafford TX HSTDTXBGBMD  5562 METROPCS, INC. 560      
346-246 A Tomball TX TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
346-247 A Houston TX HSTNTXYADS5  903C ONVOY, LLC - TX 560      
346-248 A Pinehurst TX HSTNTX01X7X  516C AT&T CORP. 560      
346-249 A Bammel TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-250 A Houston TX HSTQTX02EMD  197D VONAGE AMERICA LLC 560      

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Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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