Area Code 603 Information
| Area Code | 603 |
| Population | 114354 |
| Type of Code: | General Purpose Code |
| Geographic(G) or non-geographic(N): | G |
| Is this code assigned: | Yes |
| Is this code in use: | Y |
| In service date: | 1947-01-01 |
| Planning Letter(s): | 556 544 163 |
| Location: | NH |
| Country: | US |
| Time Zone: | E |
| Parent NPA: |
Area Code Zipcodes
| Zipcode | City | State |
| 3031 | AMHERST | New Hampshire |
| 3032 | AUBURN | New Hampshire |
| 3033 | BROOKLINE | New Hampshire |
| 3034 | CANDIA | New Hampshire |
| 3036 | CHESTER | New Hampshire |
| 3037 | DEERFIELD | New Hampshire |
| 3038 | DERRY | New Hampshire |
| 3038 | LONDONDERRY | New Hampshire |
| 3040 | E CANDIA | New Hampshire |
| 3040 | EAST CANDIA | New Hampshire |
| 3041 | E DERRY | New Hampshire |
| 3041 | EAST DERRY | New Hampshire |
| 3042 | EPPING | New Hampshire |
| 3043 | FRANCESTOWN | New Hampshire |
| 3044 | FREMONT | New Hampshire |
| 3045 | GOFFSTOWN | New Hampshire |
| 3046 | DUNBARTON | New Hampshire |
| 3047 | GREENFIELD | New Hampshire |
| 3048 | GREENVILLE | New Hampshire |
| 3048 | MASON | New Hampshire |
| 3049 | HOLLIS | New Hampshire |
| 3051 | HUDSON | New Hampshire |
| 3052 | LITCHFIELD | New Hampshire |
| 3053 | LONDONDERRY | New Hampshire |
| 3054 | MERRIMACK | New Hampshire |
| 3055 | MILFORD | New Hampshire |
| 3057 | MONT VERNON | New Hampshire |
| 3057 | MOUNT VERNON | New Hampshire |
| 3057 | MT VERNON | New Hampshire |
| 3060 | NASHUA | New Hampshire |
| 3061 | NASHUA | New Hampshire |
| 3062 | NASHUA | New Hampshire |
| 3063 | NASHUA | New Hampshire |
| 3064 | NASHUA | New Hampshire |
| 3070 | NEW BOSTON | New Hampshire |
| 3071 | NEW IPSWICH | New Hampshire |
| 3073 | N SALEM | New Hampshire |
| 3073 | NO SALEM | New Hampshire |
| 3073 | NORTH SALEM | New Hampshire |
| 3076 | PELHAM | New Hampshire |
| 3077 | RAYMOND | New Hampshire |
| 3079 | SALEM | New Hampshire |
| 3082 | LYNDEBORO | New Hampshire |
| 3082 | LYNDEBOROUGH | New Hampshire |
| 3084 | TEMPLE | New Hampshire |
| 3086 | WILTON | New Hampshire |
| 3087 | WINDHAM | New Hampshire |
| 3101 | MANCHESTER | New Hampshire |
| 3102 | MANCHESTER | New Hampshire |
| 3102 | PINARDVILLE | New Hampshire |
| 3103 | MANCHESTER | New Hampshire |
| 3104 | MANCHESTER | New Hampshire |
| 3105 | MANCHESTER | New Hampshire |
| 3106 | HOOKSETT | New Hampshire |
| 3106 | MANCHESTER | New Hampshire |
| 3108 | MANCHESTER | New Hampshire |
| 3109 | MANCHESTER | New Hampshire |
| 3110 | BEDFORD | New Hampshire |
| 3111 | MANCHESTER | New Hampshire |
| 3111 | SHARED FIRM ZIP | New Hampshire |
| 3215 | WATERVILLE VALLEY | New Hampshire |
| 3215 | WATERVILLE VLY | New Hampshire |
| 3215 | WATERVL VLY | New Hampshire |
| 3216 | ANDOVER | New Hampshire |
| 3217 | ASHLAND | New Hampshire |
| 3218 | BARNSTEAD | New Hampshire |
| 3220 | BELMONT | New Hampshire |
| 3221 | BRADFORD | New Hampshire |
| 3221 | SUTTON | New Hampshire |
| 3222 | ALEXANDRIA | New Hampshire |
| 3222 | BRIDGEWATER | New Hampshire |
| 3222 | BRISTOL | New Hampshire |
| 3223 | CAMPTON | New Hampshire |
| 3223 | ELLSWORTH | New Hampshire |
| 3223 | THORNTON | New Hampshire |
| 3224 | CANTERBURY | New Hampshire |
| 3225 | CENTER BARNSTEAD | New Hampshire |
| 3225 | CTR BARNSTEAD | New Hampshire |
| 3226 | CENTER HARBOR | New Hampshire |
| 3226 | CENTRE HARBOR | New Hampshire |
| 3226 | CTR HARBOR | New Hampshire |
| 3227 | CENTER SANDWICH | New Hampshire |
| 3227 | CTR SANDWICH | New Hampshire |
| 3227 | SANDWICH | New Hampshire |
| 3229 | CONTOOCOOK | New Hampshire |
| 3229 | HOPKINTON | New Hampshire |
| 3230 | DANBURY | New Hampshire |
| 3231 | E ANDOVER | New Hampshire |
| 3231 | EAST ANDOVER | New Hampshire |
| 3233 | ELKINS | New Hampshire |
| 3234 | EPSOM | New Hampshire |
| 3235 | FRANKLIN | New Hampshire |
| 3235 | W FRANKLIN | New Hampshire |
| 3235 | WEST FRANKLIN | New Hampshire |
| 3237 | GILMANTON | New Hampshire |
| 3238 | GLENCLIFF | New Hampshire |
| 3240 | GRAFTON | New Hampshire |
| 3241 | E HEBRON | New Hampshire |
| 3241 | EAST HEBRON | New Hampshire |
| 3241 | GROTON | New Hampshire |
| 3241 | HEBRON | New Hampshire |
| 3242 | HENNIKER | New Hampshire |
| 3243 | HILL | New Hampshire |
| 3244 | DEERING | New Hampshire |
| 3244 | HILLSBORO | New Hampshire |
| 3244 | HILLSBOROUGH | New Hampshire |
| 3244 | WINDSOR | New Hampshire |
| 3245 | HOLDERNESS | New Hampshire |
| 3246 | LACONIA | New Hampshire |
| 3246 | LAKEPORT | New Hampshire |
| 3246 | WEIRS BEACH | New Hampshire |
| 3247 | GILFORD | New Hampshire |
| 3247 | LACONIA | New Hampshire |
| 3247 | LAKEPORT | New Hampshire |
| 3247 | WEIRS BEACH | New Hampshire |
| 3249 | GILFORD | New Hampshire |
| 3249 | GUILFORD | New Hampshire |
| 3251 | LINCOLN | New Hampshire |
| 3252 | LOCHMERE | New Hampshire |
| 3253 | MEREDITH | New Hampshire |
| 3254 | MOULTONBORO | New Hampshire |
| 3254 | MOULTONBOROUGH | New Hampshire |
| 3255 | MOUNT SUNAPEE | New Hampshire |
| 3255 | MT SUNAPEE | New Hampshire |
| 3255 | NEWBURY | New Hampshire |
| 3256 | NEW HAMPTON | New Hampshire |
| 3257 | NEW LONDON | New Hampshire |
| 3257 | SUTTON | New Hampshire |
| 3258 | CHICHESTER | New Hampshire |
| 3258 | NORTH CHICHESTER | New Hampshire |
| 3259 | N SANDWICH | New Hampshire |
| 3259 | NORTH SANDWICH | New Hampshire |
| 3260 | N SUTTON | New Hampshire |
| 3260 | NORTH SUTTON | New Hampshire |
| 3261 | NORTHWOOD | New Hampshire |
| 3262 | N WOODSTOCK | New Hampshire |
| 3262 | NORTH WOODSTOCK | New Hampshire |
| 3263 | PITTSFIELD | New Hampshire |
| 3264 | BRIDGEWATER | New Hampshire |
| 3264 | PLYMOUTH | New Hampshire |
| 3266 | DORCHESTER | New Hampshire |
| 3266 | ELLSWORTH | New Hampshire |
| 3266 | GROTON | New Hampshire |
| 3266 | RUMNEY | New Hampshire |
| 3268 | SALISBURY | New Hampshire |
| 3269 | SANBORNTON | New Hampshire |
| 3272 | S NEWBURY | New Hampshire |
| 3272 | SOUTH NEWBURY | New Hampshire |
| 3273 | S SUTTON | New Hampshire |
| 3273 | SOUTH SUTTON | New Hampshire |
| 3275 | ALLENSTOWN | New Hampshire |
| 3275 | PEMBROKE | New Hampshire |
| 3275 | SUNCOOK | New Hampshire |
| 3276 | NORTHFIELD | New Hampshire |
| 3276 | TILTON | New Hampshire |
| 3278 | SUTTON | New Hampshire |
| 3278 | WARNER | New Hampshire |
| 3279 | WARREN | New Hampshire |
| 3280 | WASHINGTON | New Hampshire |
| 3281 | WEARE | New Hampshire |
| 3282 | WENTWORTH | New Hampshire |
| 3284 | SPRINGFIELD | New Hampshire |
| 3284 | W SPRINGFIELD | New Hampshire |
| 3284 | WEST SPRINGFIELD | New Hampshire |
| 3285 | THORNTON | New Hampshire |
| 3287 | SUTTON | New Hampshire |
| 3287 | WILMOT | New Hampshire |
| 3287 | WILMOT FLAT | New Hampshire |
| 3289 | WINNISQUAM | New Hampshire |
| 3290 | NOTTINGHAM | New Hampshire |
| 3291 | W NOTTINGHAM | New Hampshire |
| 3291 | WEST NOTTINGHAM | New Hampshire |
| 3293 | WOODSTOCK | New Hampshire |
| 3298 | BRM J JILL | New Hampshire |
| 3298 | J JILL | New Hampshire |
| 3298 | J JILL BRM | New Hampshire |
| 3298 | TILTON | New Hampshire |
| 3299 | J JILL | New Hampshire |
| 3299 | TILTON | New Hampshire |
| 3301 | CONCORD | New Hampshire |
| 3302 | CONCORD | New Hampshire |
| 3303 | BOSCAWEN | New Hampshire |
| 3303 | CONCORD | New Hampshire |
| 3303 | PENACOOK | New Hampshire |
| 3303 | WEBSTER | New Hampshire |
| 3304 | BOW | New Hampshire |
| 3305 | CONCORD | New Hampshire |
| 3305 | NH DEPT OF SAFETY | New Hampshire |
| 3307 | LOUDON | New Hampshire |
| 3431 | KEENE | New Hampshire |
| 3431 | N SWANZEY | New Hampshire |
| 3431 | NORTH SWANZEY | New Hampshire |
| 3431 | ROXBURY | New Hampshire |
| 3431 | SURRY | New Hampshire |
| 3435 | KEENE | New Hampshire |
| 3435 | KEENE STATE COLLEGE | New Hampshire |
| 3440 | ANTRIM | New Hampshire |
| 3441 | ASHUELOT | New Hampshire |
| 3442 | BENNINGTON | New Hampshire |
| 3443 | CHESTERFIELD | New Hampshire |
| 3444 | DUBLIN | New Hampshire |
| 3445 | E SULLIVAN | New Hampshire |
| 3445 | EAST SULLIVAN | New Hampshire |
| 3445 | NELSON | New Hampshire |
| 3445 | SULLIVAN | New Hampshire |
| 3446 | E SWANZEY | New Hampshire |
| 3446 | EAST SWANZEY | New Hampshire |
| 3446 | SWANZEY | New Hampshire |
| 3446 | SWANZEY CENTER | New Hampshire |
| 3446 | SWANZEY CTR | New Hampshire |
| 3447 | FITZWILLIAM | New Hampshire |
| 3448 | GILSUM | New Hampshire |
| 3449 | HANCOCK | New Hampshire |
| 3450 | HARRISVILLE | New Hampshire |
| 3451 | HINSDALE | New Hampshire |
| 3452 | JAFFREY | New Hampshire |
| 3455 | MARLBOROUGH | New Hampshire |
| 3456 | MARLOW | New Hampshire |
| 3457 | MUNSONVILLE | New Hampshire |
| 3457 | NELSON | New Hampshire |
| 3458 | PETERBOROUGH | New Hampshire |
| 3458 | SHARON | New Hampshire |
| 3461 | RINDGE | New Hampshire |
| 3462 | SPOFFORD | New Hampshire |
| 3464 | STODDARD | New Hampshire |
| 3465 | TROY | New Hampshire |
| 3466 | W CHESTERFIELD | New Hampshire |
| 3466 | W CHESTERFLD | New Hampshire |
| 3466 | WEST CHESTERFIELD | New Hampshire |
| 3467 | WESTMORELAND | New Hampshire |
| 3468 | W PETERBORO | New Hampshire |
| 3468 | W PETERBOROUGH | New Hampshire |
| 3468 | WEST PETERBOROUGH | New Hampshire |
| 3469 | W SWANZEY | New Hampshire |
| 3469 | WEST SWANZEY | New Hampshire |
| 3470 | RICHMOND | New Hampshire |
| 3470 | WINCHESTER | New Hampshire |
| 3561 | LITTLETON | New Hampshire |
| 3570 | BERLIN | New Hampshire |
| 3574 | BETHLEHEM | New Hampshire |
| 3575 | BRETTON WOODS | New Hampshire |
| 3576 | COLEBROOK | New Hampshire |
| 3576 | COLUMBIA | New Hampshire |
| 3576 | DIXVILLE | New Hampshire |
| 3576 | DIXVILLE NOTCH | New Hampshire |
| 3576 | STEWARTSTOWN | New Hampshire |
| 3579 | ERROL | New Hampshire |
| 3579 | WENTWORTHS LOCATION | New Hampshire |
| 3579 | WNTWRTHS LCTN | New Hampshire |
| 3580 | EASTON | New Hampshire |
| 3580 | FRANCONIA | New Hampshire |
| 3581 | GORHAM | New Hampshire |
| 3581 | SHELBURNE | New Hampshire |
| 3582 | GROVETON | New Hampshire |
| 3582 | NORTHUMBERLAND | New Hampshire |
| 3582 | NORTHUMBERLND | New Hampshire |
| 3582 | STARK | New Hampshire |
| 3583 | JEFFERSON | New Hampshire |
| 3583 | NORTHUMBERLAND | New Hampshire |
| 3584 | LANCASTER | New Hampshire |
| 3584 | NORTHUMBERLAND | New Hampshire |
| 3585 | LANDAFF | New Hampshire |
| 3585 | LISBON | New Hampshire |
| 3585 | LYMAN | New Hampshire |
| 3586 | SUGAR HILL | New Hampshire |
| 3588 | DUMMER | New Hampshire |
| 3588 | MILAN | New Hampshire |
| 3589 | MOUNT WASHINGTON | New Hampshire |
| 3589 | MT WASHINGTON | New Hampshire |
| 3590 | COLUMBIA | New Hampshire |
| 3590 | N STRATFORD | New Hampshire |
| 3590 | NO STRATFORD | New Hampshire |
| 3590 | NORTH STRATFORD | New Hampshire |
| 3590 | STRATFORD | New Hampshire |
| 3592 | CLARKSVILLE | New Hampshire |
| 3592 | PITTSBURG | New Hampshire |
| 3593 | RANDOLPH | New Hampshire |
| 3595 | TWIN MOUNTAIN | New Hampshire |
| 3597 | W STEWARTSTOWN | New Hampshire |
| 3597 | W STEWARTSTWN | New Hampshire |
| 3597 | WEST STEWARTSTOWN | New Hampshire |
| 3598 | CARROLL | New Hampshire |
| 3598 | DALTON | New Hampshire |
| 3598 | WHITEFIELD | New Hampshire |
| 3601 | ACWORTH | New Hampshire |
| 3602 | ALSTEAD | New Hampshire |
| 3602 | ALSTEAD CENTER | New Hampshire |
| 3602 | EAST ALSTEAD | New Hampshire |
| 3602 | LANGDON | New Hampshire |
| 3603 | CHARLESTOWN | New Hampshire |
| 3603 | UNITY | New Hampshire |
| 3604 | DREWSVILLE | New Hampshire |
| 3605 | E LEMPSTER | New Hampshire |
| 3605 | EAST LEMPSTER | New Hampshire |
| 3605 | LEMPSTER | New Hampshire |
| 3607 | S ACWORTH | New Hampshire |
| 3607 | SO ACWORTH | New Hampshire |
| 3607 | SOUTH ACWORTH | New Hampshire |
| 3608 | WALPOLE | New Hampshire |
| 3609 | N WALPOLE | New Hampshire |
| 3609 | NO WALPOLE | New Hampshire |
| 3609 | NORTH WALPOLE | New Hampshire |
| 3740 | BATH | New Hampshire |
| 3741 | CANAAN | New Hampshire |
| 3741 | ORANGE | New Hampshire |
| 3743 | CLAREMONT | New Hampshire |
| 3743 | UNITY | New Hampshire |
| 3745 | CORNISH | New Hampshire |
| 3746 | CORNISH FLAT | New Hampshire |
| 3748 | ENFIELD | New Hampshire |
| 3749 | ENFIELD CENTER | New Hampshire |
| 3749 | ENFIELD CTR | New Hampshire |
| 3750 | ETNA | New Hampshire |
| 3751 | GEORGES MILLS | New Hampshire |
| 3752 | GOSHEN | New Hampshire |
| 3753 | GRANTHAM | New Hampshire |
| 3754 | GUILD | New Hampshire |
| 3755 | HANOVER | New Hampshire |
| 3756 | DARTMOUTH HITCHCOCK MED CTR | New Hampshire |
| 3756 | LEBANON | New Hampshire |
| 3765 | HAVERHILL | New Hampshire |
| 3766 | LEBANON | New Hampshire |
| 3768 | LYME | New Hampshire |
| 3769 | LYME CENTER | New Hampshire |
| 3770 | MERIDEN | New Hampshire |
| 3771 | MONROE | New Hampshire |
| 3773 | CROYDON | New Hampshire |
| 3773 | NEWPORT | New Hampshire |
| 3773 | UNITY | New Hampshire |
| 3774 | N HAVERHILL | New Hampshire |
| 3774 | NO HAVERHILL | New Hampshire |
| 3774 | NORTH HAVERHILL | New Hampshire |
| 3777 | ORFORD | New Hampshire |
| 3779 | PIERMONT | New Hampshire |
| 3780 | BENTON | New Hampshire |
| 3780 | PIKE | New Hampshire |
| 3781 | PLAINFIELD | New Hampshire |
| 3782 | SUNAPEE | New Hampshire |
| 3784 | W LEBANON | New Hampshire |
| 3784 | WEST LEBANON | New Hampshire |
| 3785 | BENTON | New Hampshire |
| 3785 | EASTON | New Hampshire |
| 3785 | LANDAFF | New Hampshire |
| 3785 | WOODSVILLE | New Hampshire |
| 3801 | NEWINGTON | New Hampshire |
| 3801 | PORTSMOUTH | New Hampshire |
| 3802 | PORTSMOUTH | New Hampshire |
| 3803 | AIR NATIONAL GUARD | New Hampshire |
| 3803 | PORTSMOUTH | New Hampshire |
| 3804 | PORTSMOUTH | New Hampshire |
| 3809 | ALTON | New Hampshire |
| 3810 | ALTON BAY | New Hampshire |
| 3810 | WEST ALTON | New Hampshire |
| 3811 | ATKINSON | New Hampshire |
| 3812 | BARTLETT | New Hampshire |
| 3812 | HARTS LCTN | New Hampshire |
| 3812 | HARTS LOCATION | New Hampshire |
| 3813 | CENTER CONWAY | New Hampshire |
| 3813 | CHATHAM | New Hampshire |
| 3813 | NORTH CHATHAM | New Hampshire |
| 3813 | SOUTH CHATHAM | New Hampshire |
| 3814 | CENTER OSSIPEE | New Hampshire |
| 3814 | CTR OSSIPEE | New Hampshire |
| 3815 | CENTER STRAFFORD | New Hampshire |
| 3815 | CTR STRAFFORD | New Hampshire |
| 3816 | CENTER TUFTONBORO | New Hampshire |
| 3816 | CTR TUFTNBORO | New Hampshire |
| 3816 | CTR TUFTONBORO | New Hampshire |
| 3816 | TUFTONBORO | New Hampshire |
| 3817 | CHOCORUA | New Hampshire |
| 3818 | ALBANY | New Hampshire |
| 3818 | CONWAY | New Hampshire |
| 3819 | DANVILLE | New Hampshire |
| 3819 | S DANVILLE | New Hampshire |
| 3819 | SO DANVILLE | New Hampshire |
| 3819 | SOUTH DANVILLE | New Hampshire |
| 3820 | DOVER | New Hampshire |
| 3821 | DOVER | New Hampshire |
| 3822 | DOVER | New Hampshire |
| 3822 | LIBERTY MUTUAL INSURANCE | New Hampshire |
| 3823 | MADBURY | New Hampshire |
| 3824 | DURHAM | New Hampshire |
| 3824 | LEE | New Hampshire |
| 3825 | BARRINGTON | New Hampshire |
| 3826 | E HAMPSTEAD | New Hampshire |
| 3826 | EAST HAMPSTEAD | New Hampshire |
| 3827 | E KINGSTON | New Hampshire |
| 3827 | EAST KINGSTON | New Hampshire |
| 3827 | S HAMPTON | New Hampshire |
| 3827 | SO HAMPTON | New Hampshire |
| 3827 | SOUTH HAMPTON | New Hampshire |
| 3830 | E WAKEFIELD | New Hampshire |
| 3830 | EAST WAKEFIELD | New Hampshire |
| 3830 | WAKEFIELD | New Hampshire |
| 3832 | EATON | New Hampshire |
| 3832 | EATON CENTER | New Hampshire |
| 3832 | EATON CTR | New Hampshire |
| 3833 | BRENTWOOD | New Hampshire |
| 3833 | EXETER | New Hampshire |
| 3833 | KENSINGTON | New Hampshire |
| 3835 | FARMINGTON | New Hampshire |
| 3836 | FREEDOM | New Hampshire |
| 3837 | GILMANTON IRON WORKS | New Hampshire |
| 3837 | GILMANTON IW | New Hampshire |
| 3838 | GLEN | New Hampshire |
| 3839 | GONIC | New Hampshire |
| 3839 | ROCHESTER | New Hampshire |
| 3840 | GREENLAND | New Hampshire |
| 3841 | HAMPSTEAD | New Hampshire |
| 3842 | HAMPTON | New Hampshire |
| 3842 | HAMPTON BEACH | New Hampshire |
| 3843 | HAMPTON | New Hampshire |
| 3843 | HAMPTON BEACH | New Hampshire |
| 3844 | HAMPTON FALLS | New Hampshire |
| 3845 | INTERVALE | New Hampshire |
| 3846 | JACKSON | New Hampshire |
| 3847 | KEARSARGE | New Hampshire |
| 3848 | KINGSTON | New Hampshire |
| 3849 | MADISON | New Hampshire |
| 3850 | MELVIN VILLAGE | New Hampshire |
| 3850 | MELVIN VLG | New Hampshire |
| 3851 | MILTON | New Hampshire |
| 3852 | MILTON MILLS | New Hampshire |
| 3853 | MIRROR LAKE | New Hampshire |
| 3854 | NEW CASTLE | New Hampshire |
| 3854 | NEWCASTLE | New Hampshire |
| 3855 | NEW DURHAM | New Hampshire |
| 3856 | NEWFIELDS | New Hampshire |
| 3857 | NEWMARKET | New Hampshire |
| 3858 | NEWTON | New Hampshire |
| 3859 | NEWTON JCT | New Hampshire |
| 3859 | NEWTON JUNCTION | New Hampshire |
| 3860 | HALES LCTN | New Hampshire |
| 3860 | HALES LOCATION | New Hampshire |
| 3860 | N CONWAY | New Hampshire |
| 3860 | NO CONWAY | New Hampshire |
| 3860 | NORTH CONWAY | New Hampshire |
| 3861 | LEE | New Hampshire |
| 3862 | N HAMPTON | New Hampshire |
| 3862 | NO HAMPTON | New Hampshire |
| 3862 | NORTH HAMPTON | New Hampshire |
| 3864 | OSSIPEE | New Hampshire |
| 3865 | PLAISTOW | New Hampshire |
| 3866 | ROCHESTER | New Hampshire |
| 3867 | ROCHESTER | New Hampshire |
| 3868 | E ROCHESTER | New Hampshire |
| 3868 | EAST ROCHESTER | New Hampshire |
| 3868 | ROCHESTER | New Hampshire |
| 3869 | ROLLINSFORD | New Hampshire |
| 3870 | RYE | New Hampshire |
| 3871 | RYE BEACH | New Hampshire |
| 3872 | BROOKFIELD | New Hampshire |
| 3872 | SANBORNVILLE | New Hampshire |
| 3873 | SANDOWN | New Hampshire |
| 3874 | SEABROOK | New Hampshire |
| 3875 | SILVER LAKE | New Hampshire |
| 3878 | SOMERSWORTH | New Hampshire |
| 3882 | EFFINGHAM | New Hampshire |
| 3882 | S EFFINGHAM | New Hampshire |
| 3882 | SO EFFINGHAM | New Hampshire |
| 3882 | SOUTH EFFINGHAM | New Hampshire |
| 3883 | S TAMWORTH | New Hampshire |
| 3883 | SO TAMWORTH | New Hampshire |
| 3883 | SOUTH TAMWORTH | New Hampshire |
| 3884 | STRAFFORD | New Hampshire |
| 3885 | STRATHAM | New Hampshire |
| 3886 | TAMWORTH | New Hampshire |
| 3887 | MIDDLETON | New Hampshire |
| 3887 | UNION | New Hampshire |
| 3890 | W OSSIPEE | New Hampshire |
| 3890 | WEST OSSIPEE | New Hampshire |
| 3894 | TUFTONBORO | New Hampshire |
| 3894 | WOLFEBORO | New Hampshire |
| 3896 | WOLFEBORO FALLS | New Hampshire |
| 3896 | WOLFEBORO FLS | New Hampshire |
| 3897 | WONALANCET | New Hampshire |
FAQ
Where is area code 603?
The Area code 603 is located in New Hampshire and includes the following cities:
East Concord Derry Dover Keene Manchester Nashua Portsmouth Rochester