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(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: 08/26/2017
603-288 in NASHUA, NH
VONAGE NETWORK 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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