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.

OCN: 321J HD CARRIER LLC

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
607-401 8 Binghamton NY BNGHNYHYXMY  138   2021-01-02   
607-401 9 Binghamton NY BNGHNYHYXMY  138   2021-01-02   
608-722 A Madison WI MDSRWIKE6MD  354      
608-722 9 Madison WI MDSRWIKE6MD  354   2020-11-23   
608-730 A Stoughton WI MDSRWIKE7MD  354      
608-730 9 Stoughton WI MDSRWIKE7MD  354   2021-07-05   
608-920 A Stoughton WI MDSRWIKE6MD  354   2025-09-08   
608-920 8 Stoughton WI MDSRWIKE6MD  354   2025-09-08   
608-920 9 Stoughton WI MDSRWIKE6MD  354   2025-09-08   
608-961 6 Madison WI MDSRWIKE6MD  354   2025-08-11   
608-961 7 Madison WI MDSRWIKE6MD  354   2025-08-11   
608-991 2 Beloit WI MDSRWIKE6MD  354   2026-06-11   
608-991 3 Beloit WI MDSRWIKE6MD  354   2026-06-11   
609-201 4 Allentown NJ CMDNNJCE55Z  222   2016-09-04   
609-201 5 Allentown NJ CMDNNJCE55Z  222   2016-09-04   
609-201 6 Allentown NJ CMDNNJCE55Z  222   2016-09-04   
609-201 7 Allentown NJ CMDNNJCE55Z  222   2016-09-04   
609-201 9 Allentown NJ CMDNNJCE55Z  222   2016-09-04   
609-663 0 Allentown NJ CMDNNJCE55Z  222   2016-05-19   
609-663 1 Allentown NJ CMDNNJCE55Z  222   2016-05-19   
609-663 2 Allentown NJ CMDNNJCE55Z  222   2016-05-19   
609-663 3 Allentown NJ CMDNNJCE55Z  222   2016-05-19   
609-663 4 Allentown NJ CMDNNJCE55Z  222   2016-05-19   
609-663 5 Allentown NJ CMDNNJCE55Z  222   2016-05-19   
609-715 A Somers Point NJ PSVLNJPLXOZ  220      
609-715 8 Somers Point NJ PSVLNJPLXOZ  220   2021-11-20   
609-715 9 Somers Point NJ PSVLNJPLXOZ  220   2021-11-20   
609-793 4 Burlington NJ CMDNNJCE55Z  222   2020-05-11   
609-952 3 Burlington NJ CMDNNJCE55Z  222   2016-05-19   
609-996 A Atlantic City NJ PSVLNJPLXKZ  220      
609-996 8 Atlantic City NJ PSVLNJPLXKZ  220   2020-12-31   
609-996 9 Atlantic City NJ PSVLNJPLXKZ  220   2020-12-31   
610-206 5 Philadelphia Suburban Zone 23 PA PHLAPAMKX7X  228   2016-05-20   
610-206 6 Philadelphia Suburban Zone 23 PA PHLAPAMKX7X  228   2016-05-20   
610-206 7 Philadelphia Suburban Zone 23 PA PHLAPAMKX7X  228   2016-05-20   
610-206 8 Philadelphia Suburban Zone 23 PA PHLAPAMKX7X  228   2016-05-20   
610-206 9 Philadelphia Suburban Zone 23 PA PHLAPAMKX7X  228   2016-05-20   
610-227 7 Philadelphia Suburban Zone 23 PA PHLAPAMKX7X  228   2016-05-20   
610-410 4 Center Point PA PHLAPAMKX7X  228   2016-02-28   
610-426 5 Kutztown (Berks) PA PHLAPAMKX7X  228   2016-05-20   
610-426 7 Kutztown (Berks) PA PHLAPAMKX7X  228   2016-05-20   
610-474 3 Royersford PA PHLAPAMKX7X  228   2016-01-02   
610-474 4 Royersford PA PHLAPAMKX7X  228   2016-01-02   
610-474 8 Royersford PA PHLAPAMKX7X  228   2016-01-02   
610-528 1 Center Point PA PHLAPAMKX7X  228   2016-01-02   
610-528 3 Center Point PA PHLAPAMKX7X  228   2016-01-02   
610-528 5 Center Point PA PHLAPAMKX7X  228   2016-01-02   
610-528 6 Center Point PA PHLAPAMKX7X  228   2016-01-02   
610-528 7 Center Point PA PHLAPAMKX7X  228   2016-01-02   
610-569 2 Royersford PA PHLAPAMKX7X  228   2016-01-02   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 >>

Last updated: Tue, 29 Sep 2026 03:00:13 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.