Local Calling Guide

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Switch: BLTMMDCH

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Switch (link to prefixes) Switch name Company
BLTMMDCH05Z    
BLTMMDCH06T    
BLTMMDCH08Z   4492 VDL, INC. DBA GLOBAL TELECOM BROKERS - MD 
BLTMMDCH13T    
BLTMMDCH14Z   2697 CTC COMMUNICATIONS CORP. - MD 
BLTMMDCH1DD BALTIMORE CHARLES STREET  9212 VERIZON MARYLAND, INC. 
BLTMMDCH21Z    
BLTMMDCH25Z    
BLTMMDCH3MD   228C IDT AMERICA, CORP. - MD  
BLTMMDCH40Z   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC DBA T-MOBILE USA 
BLTMMDCH40Z   6664 SPRINT SPECTRUM, L.P.  
BLTMMDCH42Z   876D ONVOY, LLC - MD 
BLTMMDCH45Z   071F BANDWIDTH.COM CLEC, LLC - MD 
BLTMMDCH47Z   420C ARMSTRONG TELECOMMUNICATIONS, INC. - MD 
BLTMMDCH77W    
BLTMMDCHAMD    
BLTMMDCHCMD   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 
BLTMMDCHDMD   551G NUSO, LLC  
BLTMMDCHDS2 BALTIMORE CHARLES STREET  9212 VERIZON MARYLAND, INC. 
BLTMMDCHDS3 BALTIMORE CHARLES STREET 2  9212 VERIZON MARYLAND, INC. 
BLTMMDCHDS6   7421 AT&T - LOCAL  
BLTMMDCHDS7    
BLTMMDCHFMD   5562 METROPCS, INC.  
BLTMMDCHIMD    
BLTMMDCHLMD   082H LOCAL ACCESS LLC - MD  
BLTMMDCHPMD   820C INTRADO COMMUNICATIONS, LLC 
BLTMMDCHQMD   466H CITRIX COMMUNICATIONS LLC - MD  
BLTMMDCHTMD    
BLTMMDCHUMD    
BLTMMDCHW29 BALTIMORE CHARLES STREET  4716 PAETEC COMMUNICATIONS, INC. - MD 
BLTMMDCHX1X    
BLTMMDCHX1Y    
BLTMMDCHX3Y   2596 QUANTUM TELECOMMUNICATIONS, INC. - MD 
BLTMMDCHX6X   530H WIDE VOICE, LLC - MD 
BLTMMDCHX7X   073H TELNYX LLC  
BLTMMDCHX7Y   321J HD CARRIER LLC  
BLTMMDCHXAX   7421 AT&T - LOCAL  
BLTMMDCHXEX    
BLTMMDCHXFX   318J COMCAST IP PHONE LLC 
BLTMMDCHXHX   515J IP HORIZON LLC  
BLTMMDCHXHY    
BLTMMDCHXKX   478J NUSO, LLC  
BLTMMDCHXMD   139F WORLDCALL INTERCONNECT INC.  
BLTMMDCHXMX   506J TWILIO INTERNATIONAL INC 
BLTMMDCHXNX   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC  
BLTMMDCHXOY   6626 OMNIPOINT COMMUNICATIONS ENTERPRISES, LP DBA T-MOBILE USA 
BLTMMDCHXOY   5562 METROPCS, INC.  
BLTMMDCHXQX   197D VONAGE AMERICA LLC  
BLTMMDCHXTX   073H TELNYX LLC  
BLTMMDCHXUX   624H ONVOY SPECTRUM, LLC 
BLTMMDCHXVX   321J HD CARRIER LLC  

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

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