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.

Switch: SLBRMDSBDS1

Remotes:

Switch Switch name Switch type
DLMRMDDMRS1  DELMAR  RSC 
NNTCMDNTRS1  NANTICOKE  RSC 
SHTWMDSTRS1  SHARPTOWN  RSC 
WLRDMDWRRS1  WILLARDS  RSC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
410-219 A Salisbury MD 9212 VERIZON MARYLAND, INC. 242      
410-334 A Salisbury MD 9212 VERIZON MARYLAND, INC. 242      
410-341 A Salisbury MD 9212 VERIZON MARYLAND, INC. 242      
410-543 A Salisbury MD 9212 VERIZON MARYLAND, INC. 242      
410-546 A Salisbury MD 9212 VERIZON MARYLAND, INC. 242      
410-548 A Salisbury MD 9212 VERIZON MARYLAND, INC. 242      
410-572 A Salisbury MD 9212 VERIZON MARYLAND, INC. 242      
410-677 A Salisbury MD 9212 VERIZON MARYLAND, INC. 242      
410-742 A Salisbury MD 9212 VERIZON MARYLAND, INC. 242      
410-749 A Salisbury MD 9212 VERIZON MARYLAND, INC. 242      
410-860 A Salisbury MD 9212 VERIZON MARYLAND, INC. 242      
443-260 A Salisbury MD 9212 VERIZON MARYLAND, INC. 242      
443-523 A Salisbury MD 9212 VERIZON MARYLAND, INC. 242      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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