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: 860 [Rate centres in NPA 860] [Dial plan for NPA 860]

NXX: 853

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
860-853 A Old Saybrook CT SMFRCTQI9MD  3493 GLOBAL CROSSING LOCAL SERVICES, INC. - CT 920      
860-853 0 Old Saybrook CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2008-11-02   
860-853 1 Old Saybrook CT SMFRCTATXMD  3083 PAETEC COMMUNICATIONS, LLC - CT 920   2015-06-30   
860-853 2 Old Saybrook CT SMFRCTQI9MD  3493 GLOBAL CROSSING LOCAL SERVICES, INC. - CT 920      
860-853 3 Old Saybrook CT NWHNCT02XJX  624H ONVOY SPECTRUM, LLC 920   2021-03-23   
860-853 4 Old Saybrook CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2008-11-25   
860-853 5 Old Saybrook CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2017-01-08   
860-853 6 Old Saybrook CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2018-06-07   
860-853 7 Old Saybrook CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2018-08-02   
860-853 8 Old Saybrook CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2006-12-20   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.