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.

NPA: 721 [Rate centres in NPA 721] [Dial plan for NPA 721]

Block: A

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
721-520 A Philipsburg SM SWCHSFUNKNO  639G TELCELL, NV 830      
721-521 A Philipsburg SM SWCHSFUNKNO  639G TELCELL, NV 830      
721-522 A Philipsburg SM SWCHSFUNKNO  639G TELCELL, NV 830      
721-523 A Philipsburg SM SWCHSFUNKNO  639G TELCELL, NV 830      
721-524 A Philipsburg SM SWCHSFUNKNO  639G TELCELL, NV 830      
721-525 A Philipsburg SM SWCHSFUNKNO  637G ST. MAARTEN TELEPHONE COMPANY, NV 830      
721-526 A Philipsburg SM SWCHSFUNKNO  639G TELCELL, NV 830      
721-527 A Philipsburg SM SWCHSFUNKNO  639G TELCELL, NV 830      
721-528 A Philipsburg SM SWCHSFUNKNO  639G TELCELL, NV 830      
721-529 A Philipsburg SM SWCHSFUNKNO  639G TELCELL, NV 830      
721-542 A Philipsburg SM SWCHSFUNKNO  637G ST. MAARTEN TELEPHONE COMPANY, NV 830      
721-543 A Philipsburg SM SWCHSFUNKNO  637G ST. MAARTEN TELEPHONE COMPANY, NV 830      
721-544 A Philipsburg SM SWCHSFUNKNO  637G ST. MAARTEN TELEPHONE COMPANY, NV 830      
721-545 A Philipsburg SM SWCHSFUNKNO  637G ST. MAARTEN TELEPHONE COMPANY, NV 830      
721-546 A Philipsburg SM SWCHSFUNKNO  637G ST. MAARTEN TELEPHONE COMPANY, NV 830      
721-547 A Philipsburg SM SWCHSFUNKNO  637G ST. MAARTEN TELEPHONE COMPANY, NV 830      
721-548 A Philipsburg SM SWCHSFUNKNO  637G ST. MAARTEN TELEPHONE COMPANY, NV 830      
721-549 A Philipsburg SM SWCHSFUNKNO  637G ST. MAARTEN TELEPHONE COMPANY, NV 830      
721-550 A Philipsburg SM SWCHSFUNKNO  639G TELCELL, NV 830      
721-553 A Philipsburg SM SWCHSFUNKNO  636G RADCOM CORPORATION, NV DBA UTS 830      
721-554 A Philipsburg SM SWCHSFUNKNO  636G RADCOM CORPORATION, NV DBA UTS 830      
721-556 A Philipsburg SM SWCHSFUNKNO  639G TELCELL, NV 830      
721-557 A Philipsburg SM SWCHSFUNKNO  639G TELCELL, NV 830      
721-559 A Philipsburg SM SWCHSFUNKNO  639G TELCELL, NV 830      
721-580 A Philipsburg SM SWCHSFUNKNO  636G RADCOM CORPORATION, NV DBA UTS 830      
721-581 A Philipsburg SM SWCHSFUNKNO  636G RADCOM CORPORATION, NV DBA UTS 830      
721-584 A Philipsburg SM SWCHSFUNKNO  636G RADCOM CORPORATION, NV DBA UTS 830      
721-585 A Philipsburg SM SWCHSFUNKNO  636G RADCOM CORPORATION, NV DBA UTS 830      
721-586 A Philipsburg SM SWCHSFUNKNO  636G RADCOM CORPORATION, NV DBA UTS 830      
721-587 A Philipsburg SM SWCHSFUNKNO  636G RADCOM CORPORATION, NV DBA UTS 830      
721-588 A Philipsburg SM SWCHSFUNKNO  636G RADCOM CORPORATION, NV DBA UTS 830      
721-590 A Philipsburg SM SWCHSFUNKNO  635G ANTELECOM, NV DBA UTS 830      
721-595 A Philipsburg SM SWCHSFUNKNO  638G ST. MAARTEN INTERNATIONAL TELECOM SVC DBA SMITCOMS 830      
721-596 A Philipsburg SM SWCHSFUNKNO  638G ST. MAARTEN INTERNATIONAL TELECOM SVC DBA SMITCOMS 830      

Last updated: Sun, 28 Feb 2021 19:06:05 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.