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Area Code Lookup

Area Code 603 Phone Lookup

New Hampshire, United States. Explore phone prefixes, caller activity, exchange details, and community reports connected to this area code.

691prefix records
58lookup pages
603area code

Phone Prefixes in This Area Code

Each prefix groups related phone numbers by exchange, location, carrier, and line type.

Landline

(603) 992

CityManchester
CountyHillsborough
CarrierLevel 3 Communications - Nh
View Prefix
Landline

(603) 994

CityPortsmouth
CountyRockingham
CarrierFreedom Ring Communications Llc
View Prefix