Local Calling Guide
Area code/prefix search
NPA: 603 [Rate centres in NPA 603] [Dial plan for NPA 603]
NXX: 956
NPA-NXX | BLOCK | Rate Centre | Region | Switch | OCN | LATA | LIR | Eff date | Disc date |
---|---|---|---|---|---|---|---|---|---|
603-956 | A | Portsmouth | NH | MNCHNHCO18Z | 197D VONAGE AMERICA LLC | 122 | |||
603-956 | 0 | Portsmouth | NH | MNCHNHAC3MD | 939H COMMIO, LLC | 122 | |||
603-956 | 1 | Portsmouth | NH | MNCHNHCO23Z | 073H TELNYX LLC | 122 | |||
603-956 | 2 | Portsmouth | NH | MNCHNHCO18Z | 197D VONAGE AMERICA LLC | 122 | |||
603-956 | 3 | Portsmouth | NH | MNCHNHCOX9Z | 637E ONVOY, LLC - NH | 122 | |||
603-956 | 4 | Portsmouth | NH | MNCHNHCOX9Z | 637E ONVOY, LLC - NH | 122 | |||
603-956 | 5 | Portsmouth | NH | MNCHNHCOX9Z | 637E ONVOY, LLC - NH | 122 | |||
603-956 | 6 | Portsmouth | NH | MNCHNHCOX9Z | 637E ONVOY, LLC - NH | 122 | |||
603-956 | 7 | Portsmouth | NH | MNCHNHCOX9Z | 637E ONVOY, LLC - NH | 122 | |||
603-956 | 8 | Portsmouth | NH | 8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH | 122 | ||||
603-956 | 9 | Portsmouth | NH | MNCHNHCOX9Z | 637E ONVOY, LLC - NH | 122 |
Last updated: Wed, 20 Nov 2024 21:20:06 UTC
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