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603 area code

603 area code phone numbers

Browse current phone-number listings in area code 603, associated with Alstead, Alton, Andover, Antrim, Ashland. Compare memorable patterns and listed pricing. 207 603 numbers are currently available at $49 (median $49), including 121 vanity-word and 35 year numbers.

  • Area code 603 is associated with New Hampshire
  • Time zone: Eastern Time
  • Cities describe numbering-plan coverage, not an Exclusive Digits office
  • Delivered by email after payment with the account number and transfer PIN the carrier asks for
  • Portable to Verizon, AT&T, T-Mobile and all major US carriers
AlsteadAltonAndoverAntrimAshlandBarnetBarnsteadBarrington

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196 matching numbers

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  • 196 603 numbers in stock
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Area-code profile

About the 603 area code

Location
Grafton County, NH, Rockingham County, NH, Hillsborough County, NH, and Carroll County, NH and 6 more counties
Time zone
Eastern Time
History
In service since 1947, one of the original North American area codes
Dialing
Local calls are dialed with 10 digits (1 + 10 digits also works)
Prefixes
768 exchange prefixes in use, held by 51 carriers
Map of the 603 area codeShaded area shows where 603 numbers are rated, with neighboring area codes outlined around it.207315607518413978802ManchesterNashuaConcordLaconiaKeenePlymouthClaremont
Approximate 603 coverage from U.S. Census ZIP code areas and NANPA rate centers.

Cities and communities in 603

Manchester, Nashua, Concord, Dover, Derry, Portsmouth, Merrimack, Salem, Laconia, Exeter, Keene, Rochester, Milford, Plymouth, Suncook, Lebanon

ZIP codes in the 603 area code

246 ZIP code areas. Area codes follow telephone exchange boundaries rather than ZIP code lines, so ZIP codes near the edge can also be served by a neighboring area code.

Grafton County, NH (36)

03215, 03217, 03222, 03223, 03238, 03240, 03241, 03245, 03251, 03262, 03264, 03266, 03279, 03282, 03285, 03293, 03561, 03574, 03580, 03585, 03586, 03740, 03741, 03748, 03750, 03755, 03765, 03766, 03768, 03771, 03774, 03777, 03779, 03780, 03784, 03785

Rockingham County, NH (36)

03032, 03034, 03036, 03037, 03038, 03042, 03044, 03053, 03077, 03079, 03087, 03261, 03290, 03291, 03801, 03811, 03819, 03826, 03827, 03833, 03840, 03841, 03842, 03844, 03848, 03854, 03856, 03857, 03858, 03862, 03865, 03870, 03871, 03873, 03874, 03885

Hillsborough County, NH (34)

03031, 03033, 03043, 03045, 03047, 03048, 03049, 03051, 03052, 03054, 03055, 03057, 03060, 03062, 03063, 03064, 03070, 03071, 03076, 03082, 03084, 03086, 03101, 03102, 03103, 03104, 03109, 03110, 03244, 03281, 03440, 03442, 03449, 03458

Show 7 more counties (140 ZIP codes)

Carroll County, NH (29)

03227, 03254, 03259, 03812, 03813, 03814, 03816, 03817, 03818, 03830, 03832, 03836, 03838, 03845, 03846, 03847, 03849, 03850, 03853, 03860, 03864, 03872, 03875, 03882, 03883, 03886, 03890, 03894, 03897

Merrimack County, NH (28)

03046, 03106, 03216, 03221, 03224, 03229, 03230, 03231, 03233, 03234, 03235, 03242, 03243, 03255, 03257, 03258, 03260, 03263, 03268, 03273, 03275, 03276, 03278, 03287, 03301, 03303, 03304, 03307

Cheshire County, NH (25)

03431, 03441, 03443, 03444, 03445, 03446, 03447, 03448, 03450, 03451, 03452, 03455, 03456, 03457, 03461, 03462, 03464, 03465, 03466, 03467, 03470, 03602, 03604, 03608, 03609

Strafford County, NH (16)

03820, 03823, 03824, 03825, 03835, 03839, 03851, 03852, 03855, 03861, 03867, 03868, 03869, 03878, 03884, 03887

Sullivan County, NH (15)

03280, 03284, 03601, 03603, 03605, 03607, 03743, 03745, 03751, 03752, 03753, 03770, 03773, 03781, 03782

Coos County, NH (14)

03570, 03575, 03576, 03581, 03582, 03583, 03584, 03588, 03590, 03592, 03593, 03595, 03597, 03598

Belknap County, NH (13)

03218, 03220, 03225, 03226, 03237, 03246, 03249, 03253, 03256, 03269, 03809, 03810, 03837

Neighboring area codes

207315607518413978617802508781

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