Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Denver, CO

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
720-208 0 DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
720-208 1 DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
720-208 2 DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
720-208 3 DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
720-208 4 DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
720-208 5 DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
720-208 6 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-208 7 DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
720-208 8 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-208 9   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
720-209 A DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-209 0 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-209 1 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-209 2 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-209 3 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-209 4 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-209 5 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-209 6 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-209 7 DNVRCOII0MD  6529 T-MOBILE USA, INC. 656      
720-209 8 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-209 9 DNVRCOII0MD  6529 T-MOBILE USA, INC. 656      
720-210 A DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
720-210 0 DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
720-210 1 DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
720-210 2 DNVRCOII4MD  5562 METROPCS, INC. 656      
720-210 3 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-210 4 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-210 5 DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
720-210 6 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-210 7 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-210 8 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-210 9 DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
720-212 A DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
720-212 0 DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
720-212 1 DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-212 2 DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      
720-212 3 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-212 4 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-212 5 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-212 6 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-212 7 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-212 8 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-212 9 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-213 A   829J PAETEC ITEL, LLC 656      
720-213 0   829J PAETEC ITEL, LLC 656      
720-213 1   829J PAETEC ITEL, LLC 656      
720-213 2   829J PAETEC ITEL, LLC 656      
720-213 3   829J PAETEC ITEL, LLC 656      
720-213 4 ENWDCO47DS4  320E YMAX COMMUNICATIONS CORP. - CO 656      
720-213 5 DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-213 6 DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-213 7   829J PAETEC ITEL, LLC 656      
720-213 8 DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-213 9   829J PAETEC ITEL, LLC 656      
720-214 A   829J PAETEC ITEL, LLC 656      
720-215 A AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-215 0 AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-215 1 AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-215 2 AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-215 3 DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-215 4 DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
720-215 5 AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-215 6 AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-215 7 AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-215 8 AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-215 9 AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-216 A AURRCOBUDS0  7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
720-216 0 DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656      
720-216 1 DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656      
720-216 2 DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
720-216 3 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-216 4 DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-216 5 DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656      
720-216 6 AURRCOBUDS0  7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
720-216 7 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-216 8 AURRCOBUDS0  7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
720-216 9 AURRCOBUDS0  7378 TELEPORT COMMUNICATIONS AMERICA, LLC - CO 656      
720-217 A DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-218 A DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-218 0 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-218 1 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-218 2 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-218 3 DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-218 4 DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-218 5 DNVRCOII4MD  5562 METROPCS, INC. 656      
720-218 6 DNVRCOII4MD  5562 METROPCS, INC. 656      
720-218 7 DNVRCOII4MD  5562 METROPCS, INC. 656      
720-218 8 DNVRCOII4MD  5562 METROPCS, INC. 656      
720-218 9 DNVRCOII0MD  6529 T-MOBILE USA, INC. 656      
720-219 A AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-219 0 AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-219 1 AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-219 2 AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-219 3 AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-219 4 AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-219 5 AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-219 6 AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-219 7 AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-219 8 AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-219 9 AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 >>

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.