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.

O'Fallon, MO

<< 1 2

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
636-544 4 NWTPMOABGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520      
636-544 5 NWTPMOABGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520      
636-544 6 NWTPMOABGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520      
636-544 7 NWTPMOABGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520      
636-544 8 NWTPMOABGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520      
636-544 9 NWTPMOABGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520      
636-614 A STLSMOPLDS4  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520      
636-614 0 STLSMOPLDS4  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520      
636-614 1 STLSMOPLDS4  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520      
636-614 2 STLSMOPLDS4  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520      
636-614 3 STLTMOBODS1  7432 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 520      
636-614 4 STLSMOPLDS4  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520      
636-614 5 WNVLMOXAVMD  6529 T-MOBILE USA, INC. 520      
636-614 6 WNVLMOXAVMD  6529 T-MOBILE USA, INC. 520      
636-614 8 WNVLMOXAVMD  6529 T-MOBILE USA, INC. 520      
636-614 9 WNVLMOXAVMD  6529 T-MOBILE USA, INC. 520      
636-630 A STLSMOWQ4MD  939H COMMIO, LLC 520      
636-630 0 STLSMOWQ4MD  939H COMMIO, LLC 520      
636-630 1   093F ONVOY, LLC - MO 520      
636-630 7   093F ONVOY, LLC - MO 520      
636-630 8   093F ONVOY, LLC - MO 520      
636-630 9   093F ONVOY, LLC - MO 520      
636-849 A WNVLMOXAVMD  6529 T-MOBILE USA, INC. 520      
636-849 0 WNVLMOXAVMD  6529 T-MOBILE USA, INC. 520      
636-849 1 STLSMOWQ8MD  073H TELNYX LLC 520      
636-849 3   5562 METROPCS, INC. 520      
636-849 4 STLSMOWQDS2  093F ONVOY, LLC - MO 520      
636-849 5 WNVLMOXAVMD  6529 T-MOBILE USA, INC. 520      
636-849 6 NWTPMOABGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520      
636-849 7 NWTPMOABGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520      
636-849 8 NWTPMOABGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520      
636-849 9 WNVLMOXAVMD  6529 T-MOBILE USA, INC. 520      
636-874 A STLSMOGZHMD  516J TON80 COMMUNICATIONS, LLC 520      
636-874 2 STLSMOGZHMD  516J TON80 COMMUNICATIONS, LLC 520      
636-980 A OFLNMOXADS0  9787 BRIGHTSPEED OF MISSOURI, LLC 520      
636-980 0 NWTPMOABGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520      
636-980 1 OFLNMOXADS0  9787 BRIGHTSPEED OF MISSOURI, LLC 520      
636-980 2 OFLNMOXADS0  9787 BRIGHTSPEED OF MISSOURI, LLC 520      
636-980 3 OFLNMOXADS0  9787 BRIGHTSPEED OF MISSOURI, LLC 520      
636-980 4 OFLNMOXADS0  9787 BRIGHTSPEED OF MISSOURI, LLC 520      
636-980 5 OFLNMOXADS0  9787 BRIGHTSPEED OF MISSOURI, LLC 520      
636-980 6 NWTPMOABGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520      
636-980 7 NWTPMOABGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520      
636-980 8 OFLNMOXADS0  9787 BRIGHTSPEED OF MISSOURI, LLC 520      
636-980 9 OFLNMOXADS0  9787 BRIGHTSPEED OF MISSOURI, LLC 520      

<< 1 2

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.