Local Calling Guide
Area code/prefix search
NPA: 603 [Rate centres in NPA 603] [Dial plan for NPA 603]
NXX: 855
NPA-NXX | BLOCK | Rate Centre | Region | Switch | OCN | LATA | LIR | Eff date | Disc date |
---|---|---|---|---|---|---|---|---|---|
603-855 | A | Alton | NH | ROCHNHWE4MD | 314C IDT AMERICA, CORP. - NH | 122 | |||
603-855 | 2 | Alton | NH | ROCHNHWE4MD | 314C IDT AMERICA, CORP. - NH | 122 | 2009-12-18 | ||
603-855 | 5 | Alton | NH | DOVRNHTHXEX | 8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH | 122 | 2020-04-05 |
Last updated: Tue, 16 Apr 2024 01:38:01 UTC
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