Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Washington Zone 1, DC

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
771-230 3   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2023-05-28   
771-230 4   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2023-05-28   
771-230 5   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2023-05-28   
771-230 6   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2023-05-28   
771-230 7   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2023-05-28   
771-230 8   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2023-05-28   
771-230 9   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2023-05-28   
771-231 A WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
771-231 0   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2023-05-28   
771-231 1   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2023-05-28   
771-231 2   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2023-05-28   
771-231 3   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2023-05-28   
771-231 4   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2023-05-28   
771-231 5   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2023-05-28   
771-231 6   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2023-05-28   
771-231 7   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2023-05-28   
771-231 8   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2023-05-28   
771-231 9   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2023-05-28   
771-232 A WASHDC12X1X  598J FIVE9, INC. 236      
771-232 0   598J FIVE9, INC. 236   2023-06-30   
771-232 1   850D ONVOY, LLC - DC 236   2023-09-08   
771-232 2   624H ONVOY SPECTRUM, LLC 236   2023-09-15   
771-232 3   624H ONVOY SPECTRUM, LLC 236   2023-09-15   
771-232 4   624H ONVOY SPECTRUM, LLC 236   2023-09-15   
771-232 5   624H ONVOY SPECTRUM, LLC 236   2023-09-15   
771-232 6   624H ONVOY SPECTRUM, LLC 236   2023-09-15   
771-232 7   624H ONVOY SPECTRUM, LLC 236   2023-09-15   
771-232 8   850D ONVOY, LLC - DC 236   2023-09-08   
771-232 9   850D ONVOY, LLC - DC 236   2023-09-08   
771-233 A WASHDC1224Z  490J DISH WIRELESS, LLC 236      
771-233 0   490J DISH WIRELESS, LLC 236   2023-10-31   
771-233 1   6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2023-08-31   
771-233 2   6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2023-10-16   
771-233 3   6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2023-10-16   
771-233 4   6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2023-10-16   
771-233 5   6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2023-10-16   
771-233 6   6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2023-10-16   
771-233 7   6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2023-10-16   
771-233 8   6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2023-10-16   
771-233 9   490J DISH WIRELESS, LLC 236   2023-08-04   
771-234 A OCQNVAXAVMD  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-234 0   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-234 1   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-234 2   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-234 3   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-234 4   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-234 5   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-234 6   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-234 7   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-234 8   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-234 9   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-235 A OCQNVAXAVMD  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-235 0   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-235 1   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-235 2   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-235 3   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-235 4   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-235 5   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-235 6   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-235 7   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-235 8   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-235 9   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-236 A OCQNVAXAVMD  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-236 0   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-236 1   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-236 2   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-236 3   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-236 4   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-236 5   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-236 6   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-236 7   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-236 8   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-236 9   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-237 A OCQNVAXAVMD  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-237 0   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-237 1   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-237 2   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-237 3   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-237 4   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-237 5   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-237 6   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-237 7   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-237 8   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-237 9   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-238 A OCQNVAXAVMD  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-238 0   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-238 1   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-238 2   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-238 3   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-238 4   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-238 5   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-238 6   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-238 7   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-238 8   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-238 9   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-239 A OCQNVAXAVMD  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-239 0   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-239 1   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-239 2   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   
771-239 3   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2024-01-08   

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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