Area Code 603

General Information
Country United States
State/Province New Hampshire
Major City Manchester
Time Zone Eastern (UTC-05:00)
Current Local Time 09:02

Area Code Prefixes

Prefix County Primary City
603-200 Rockingham Newmarket
603-203 Hillsborough Manchester
603-204 Hillsborough Nashua
603-205 Rockingham Portsmouth
603-206 Hillsborough Manchester
603-208 Grafton Lyme
603-209 Cheshire Keene
603-210 Hillsborough Manchester
603-212 Rockingham Salem
603-213 Rockingham Derry
603-214 Coos Errol
603-215 Coos Berlin
603-216 Hillsborough Manchester
603-217 Grafton Bristol
603-218 Hillsborough Manchester
603-219 Merrimack Concord
603-221 Hillsborough Nashua
603-222 Hillsborough Manchester
603-223 Merrimack Concord
603-224 Merrimack Concord
603-225 Merrimack Concord
603-226 Merrimack Concord
603-227 Merrimack Concord
603-228 Merrimack Concord
603-229 Merrimack Concord
603-230 Merrimack Concord
603-231 Rockingham Derry
603-232 Hillsborough Manchester
603-233 Hillsborough Nashua
603-234 Rockingham Derry
603-235 Rockingham Derry
603-236 Carroll North Sandwich
603-237 Coos Colebrook
603-238 Grafton Plymouth
603-239 Cheshire Winchester
603-240 Hillsborough Manchester
603-241 Hillsborough Manchester
603-242 Cheshire Troy
603-243 Grafton Woodsville
603-244 Hillsborough Manchester
603-245 Rockingham Portsmouth
603-246 Coos Colebrook
603-247 Rockingham Derry
603-248 Strafford Dover
603-249 Hillsborough Milford
603-250 Belknap Center Barnstead
603-251 Rockingham Salem
603-252 Grafton West Lebanon
603-253 Belknap Center Barnstead
603-254 Grafton Plymouth

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