National Phone Number Registry NPNR

Area Code 603 Location

Area code 603 is currently assigned for use in New Hampshire since Jan 01, 1947. View all phone prefixes used in area code 603 or other area codes in New Hampshire.

(603)
Enter 7-digit phone number for area code 603 or the complete 10-digit phone number

Phone Prefixes for Area Code 603

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Area code Location Company / Service Provider
603-200 NEWMARKET, NH COMCAST PHONE OF NEW HAMPSHIRE, LLC - NH
603-203 MANCHESTER, NH NEW CINGULAR WIRELESS PCS, LLC - DC
603-204 NASHUA, NH UNITED STATES CELLULAR CORP. - NEW HAMPSHIRE
603-205 PORTSMOUTH, NH OMNIPOINT MIAMI E LICENSE, LLC
603-206 MANCHESTER, NH PAETEC COMMUNICATIONS, INC. - NH
603-208 LYME, NH UNITED STATES CELLULAR CORP. - NEW HAMPSHIRE
603-209 KEENE, NH UNITED STATES CELLULAR CORP. - NEW HAMPSHIRE
603-210 SUNCOOK, NH COMCAST PHONE OF NEW HAMPSHIRE, LLC - NH
603-212 SALEM, NH NO NEW ENGLAND TEL OP DBA FAIRPOINT COMM - NH
603-213 MILFORD, NH COMCAST PHONE OF NEW HAMPSHIRE, LLC - NH
603-214 ERROL, NH FREEDOM RING COMMUNICATIONS, LLC
603-215 BERLIN, NH FREEDOM RING COMMUNICATIONS, LLC
603-216 DERRY, NH COMCAST PHONE OF NEW HAMPSHIRE, LLC - NH
603-217 BRISTOL, NH BELL ATLANTIC NYNEX MOBILE
603-218 MANCHESTER, NH BROADVIEW NETWORKS, INC. - NH
603-219 CONCORD, NH SPRINT SPECTRUM L.P.
603-221 NASHUA, NH NO NEW ENGLAND TEL OP DBA FAIRPOINT COMM - NH
603-222 MANCHESTER, NH NO NEW ENGLAND TEL OP DBA FAIRPOINT COMM - NH
603-223 CONCORD, NH NO NEW ENGLAND TEL OP DBA FAIRPOINT COMM - NH
603-224 CONCORD, NH NO NEW ENGLAND TEL OP DBA FAIRPOINT COMM - NH
603-225 CONCORD, NH NO NEW ENGLAND TEL OP DBA FAIRPOINT COMM - NH
603-226 CONCORD, NH NO NEW ENGLAND TEL OP DBA FAIRPOINT COMM - NH
603-227 CONCORD, NH NO NEW ENGLAND TEL OP DBA FAIRPOINT COMM - NH
603-228 CONCORD, NH NO NEW ENGLAND TEL OP DBA FAIRPOINT COMM - NH
603-229 CONCORD, NH NO NEW ENGLAND TEL OP DBA FAIRPOINT COMM - NH
603-230 CONCORD, NH NO NEW ENGLAND TEL OP DBA FAIRPOINT COMM - NH
603-231 DERRY, NH SPRINT SPECTRUM L.P.
603-232 MANCHESTER, NH COMCAST PHONE OF NEW HAMPSHIRE, LLC - NH
603-233 NASHUA, NH OMNIPOINT MIAMI E LICENSE, LLC
603-234 DERRY, NH SPRINT SPECTRUM L.P.
603-235 DERRY, NH SPRINT SPECTRUM L.P.
603-236 CAMPTON, NH NO NEW ENGLAND TEL OP DBA FAIRPOINT COMM - NH
603-237 COLEBROOK, NH NO NEW ENGLAND TEL OP DBA FAIRPOINT COMM - NH
603-238 PLYMOUTH, NH PAETEC COMMUNICATIONS, INC. - NH
603-239 WINCHESTER, NH NO NEW ENGLAND TEL OP DBA FAIRPOINT COMM - NH
603-240 MANCHESTER, NH NO NEW ENGLAND TEL OP DBA FAIRPOINT COMM - NH
603-241 MANCHESTER, NH NO NEW ENGLAND TEL OP DBA FAIRPOINT COMM - NH
603-242 TROY, NH NO NEW ENGLAND TEL OP DBA FAIRPOINT COMM - NH
603-243 WOODSVILLE, NH CHARTER FIBERLINK - NH
603-244 RAYMOND, NH COMCAST PHONE OF NEW HAMPSHIRE, LLC - NH
603-245 PORTSMOUTH, NH NO NEW ENGLAND TEL OP DBA FAIRPOINT COMM - NH
603-246 WSTEWATSTN, NH NO NEW ENGLAND TEL OP DBA FAIRPOINT COMM - NH
603-247 DERRY, NH NEW CINGULAR WIRELESS PCS, LLC - DC
603-248 DOVER, NH NO NEW ENGLAND TEL OP DBA FAIRPOINT COMM - NH
603-249 MILFORD, NH NO NEW ENGLAND TEL OP DBA FAIRPOINT COMM - NH
603-250 CENTER HBR, NH FREEDOM RING COMMUNICATIONS, LLC
603-251 Charlestown, NH PAETEC COMMUNICATIONS, INC. - NH
603-252 W LEBANON, NH UNITED STATES CELLULAR CORP. - NEW HAMPSHIRE
603-253 CENTER HBR, NH NO NEW ENGLAND TEL OP DBA FAIRPOINT COMM - NH
603-254 PLYMOUTH, NH UNITED STATES CELLULAR CORP. - NEW HAMPSHIRE
New numbers being added to 603 area code
Effective: 06/05/2017
603-258 in HOLLIS, NH
METRO PCS, INC.
603 Area Code Information
Type of code: General Purpose Code
Location: NH - US
Time zone: E
Assigned for use: Yes
Code in service: Yes
Service date: January 01, 1947
In jeopardy: No
Relief in progress: Yes
NPA Relief status: Active
Code assignable: Yes
Geographic or
non-geographic:
G
Reserved for future use: No
Planning letter(s): 163
Overlay code: No
Overlay complex:
Dialing plan Standard Permissive
Home local calls: 7D NA
Foreign local calls: 1+10D NA
Home toll calls: 7D 1+10D
Foreign toll calls: 1+10D -

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