Local Calling Guide
Area code/prefix search
  
        McCoole, MD
      
  
    
      | NPA-NXX | 
      BLOCK | 
        Switch | 
        OCN | 
        LATA | 
        LIR | 
        Eff date | 
      Disc date | 
    
  
  
          
          | 227-210
           | A | 
      	      HGTWMD539MD  | 
		      939H COMMIO, LLC | 
		      240 | 
		        | 
	            | 
           
       | 
      
        
          | 227-210
           | 0 | 
      	      HGTWMD539MD  | 
		      939H COMMIO, LLC | 
		      240 | 
		        | 
	          2023-11-04  | 
           
       | 
      
        
          | 227-210
           | 1 | 
      	      HGTWMD539MD  | 
		      939H COMMIO, LLC | 
		      240 | 
		        | 
	          2023-11-04  | 
           
       | 
      
        
          | 227-210
           | 2 | 
      	      HGTWMD539MD  | 
		      939H COMMIO, LLC | 
		      240 | 
		        | 
	          2023-11-04  | 
           
       | 
      
        
          | 227-210
           | 3 | 
      	      HGTWMD539MD  | 
		      939H COMMIO, LLC | 
		      240 | 
		        | 
	          2023-11-04  | 
           
       | 
      
        
          | 227-210
           | 4 | 
      	      HGTWMD539MD  | 
		      939H COMMIO, LLC | 
		      240 | 
		        | 
	          2023-11-04  | 
           
       | 
      
        
          | 240-322
           | A | 
      	      HGTWMD53DS0  | 
		      2593 CORE COMMUNICATIONS, INC.- MD | 
		      240 | 
		        | 
	            | 
           
       | 
      
        
          | 240-589
           | A | 
      	      MNRVMDMOXFX  | 
		      4036 NEW CINGULAR WIRELESS PCS, LLC - DC | 
		      240 | 
		        | 
	            | 
           
       | 
      
        
          | 240-589
           | 0 | 
      	      CMLDMDCMEMD  | 
		      876D ONVOY, LLC - MD | 
		      240 | 
		        | 
	          2020-06-04  | 
           
       | 
      
        
          | 240-589
           | 1 | 
      	      FRDRMDFRXPX  | 
		      624H ONVOY SPECTRUM, LLC | 
		      240 | 
		        | 
	          2022-02-26  | 
           
       | 
      
        
          | 240-589
           | 2 | 
      	      HGTWMD53BMD  | 
		      145J TERRA NOVA TELECOM INC. | 
		      240 | 
		        | 
	          2024-02-10  | 
           
       | 
      
        
          | 240-589
           | 3 | 
      	        | 
		      2593 CORE COMMUNICATIONS, INC.- MD | 
		      240 | 
		        | 
	          2019-05-14  | 
           
       | 
      
        
          | 240-589
           | 4 | 
      	        | 
		      2593 CORE COMMUNICATIONS, INC.- MD | 
		      240 | 
		        | 
	          2019-05-14  | 
           
       | 
      
        
          | 240-589
           | 5 | 
      	      CMLDMDCMEMD  | 
		      876D ONVOY, LLC - MD | 
		      240 | 
		        | 
	          2020-01-06  | 
           
       | 
      
        
          | 240-589
           | 6 | 
      	        | 
		      2593 CORE COMMUNICATIONS, INC.- MD | 
		      240 | 
		        | 
	          2019-05-14  | 
           
       | 
      
        
          | 240-589
           | 7 | 
      	      CMLDMDCMEMD  | 
		      876D ONVOY, LLC - MD | 
		      240 | 
		        | 
	          2020-01-06  | 
           
       | 
      
        
          | 240-589
           | 8 | 
      	        | 
		      2593 CORE COMMUNICATIONS, INC.- MD | 
		      240 | 
		        | 
	          2019-05-14  | 
           
       | 
      
        
          | 240-589
           | 9 | 
      	      MNRVMDMOXFX  | 
		      4036 NEW CINGULAR WIRELESS PCS, LLC - DC | 
		      240 | 
		        | 
	          2018-05-07  | 
           
       | 
      
        
          | 240-851
           | A | 
      	      CMLDMDCMEMD  | 
		      876D ONVOY, LLC - MD | 
		      240 | 
		        | 
	            | 
           
       | 
      
        
          | 240-851
           | 0 | 
      	      CMLDMDCMUMD  | 
		      073H TELNYX LLC | 
		      240 | 
		        | 
	          2021-03-04  | 
           
       | 
      
        
          | 240-851
           | 1 | 
      	      CMLDMDCMEMD  | 
		      876D ONVOY, LLC - MD | 
		      240 | 
		        | 
	          2020-09-13  | 
           
       | 
      
        
          | 240-851
           | 2 | 
      	      CMLDMDCMEMD  | 
		      876D ONVOY, LLC - MD | 
		      240 | 
		        | 
	          2020-09-13  | 
           
       | 
      
        
          | 240-851
           | 3 | 
      	      FRDRMDFRXPX  | 
		      624H ONVOY SPECTRUM, LLC | 
		      240 | 
		        | 
	          2022-01-21  | 
           
       | 
      
        
          | 240-851
           | 4 | 
      	      FRDRMDFRXPX  | 
		      624H ONVOY SPECTRUM, LLC | 
		      240 | 
		        | 
	          2022-01-21  | 
           
       | 
      
        
          | 240-851
           | 5 | 
      	      FRDRMDFRXPX  | 
		      624H ONVOY SPECTRUM, LLC | 
		      240 | 
		        | 
	          2021-05-24  | 
           
       | 
      
        
          | 240-851
           | 6 | 
      	      HGTWMD53EMD  | 
		      516J TON80 COMMUNICATIONS, LLC | 
		      240 | 
		        | 
	          2021-11-14  | 
           
       | 
      
        
          | 240-851
           | 9 | 
      	        | 
		      4036 NEW CINGULAR WIRELESS PCS, LLC - DC | 
		      240 | 
		        | 
	          2025-05-14  | 
           
       | 
      
        
          | 301-786
           | A | 
      	      CSTWMDCRDS0  | 
		      9212 VERIZON MARYLAND, INC. | 
		      240 | 
		        | 
	            | 
           
       | 
      
        
          | 301-786
           | 0 | 
      	      HGTWMD530MD  | 
		      073H TELNYX LLC | 
		      240 | 
		        | 
	          2017-08-08  | 
           
       | 
      
        
          | 301-786
           | 1 | 
      	      CMLDMDCH0MD  | 
		      228C IDT AMERICA, CORP. - MD | 
		      240 | 
		        | 
	          2006-03-10  | 
           
       | 
      
        
          | 301-786
           | 2 | 
      	      MNRVMDMOXFX  | 
		      4036 NEW CINGULAR WIRELESS PCS, LLC - DC | 
		      240 | 
		        | 
	          2013-05-23  | 
           
       | 
      
        
          | 301-786
           | 3 | 
      	      CMLDMDCMEMD  | 
		      876D ONVOY, LLC - MD | 
		      240 | 
		        | 
	          2016-09-12  | 
           
       | 
      
        
          | 301-786
           | 4 | 
      	      CSTWMDCRDS0  | 
		      9212 VERIZON MARYLAND, INC. | 
		      240 | 
		        | 
	            | 
           
       | 
      
        
          | 301-786
           | 5 | 
      	      CMLDMDCMEMD  | 
		      876D ONVOY, LLC - MD | 
		      240 | 
		        | 
	          2016-09-12  | 
           
       | 
      
        
          | 301-786
           | 6 | 
      	      FRDRMDFRXMD  | 
		      6119 LEVEL 3 COMMUNICATIONS, LLC - MD | 
		      240 | 
		        | 
	          2016-11-12  | 
           
       | 
      
        
          | 301-786
           | 7 | 
      	      CSTWMDCRDS0  | 
		      9212 VERIZON MARYLAND, INC. | 
		      240 | 
		        | 
	            | 
           
       | 
      
        
          | 301-786
           | 8 | 
      	      FRDRMDFRXTX  | 
		      318J COMCAST IP PHONE, LLC | 
		      240 | 
		        | 
	          2014-03-24  | 
           
       | 
      
        
          | 301-786
           | 9 | 
      	      CSTWMDCRDS0  | 
		      9212 VERIZON MARYLAND, INC. | 
		      240 | 
		        | 
	            | 
           
       | 
      
  
  
   Last updated: Thu, 16 Oct 2025 03:04:18 UTC
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