Area Code 603 - New Hampshire
Every 603 prefix with its city and carrier. Got a specific number? Search it here.
Area code 603 serves New Hampshire (Eastern time zone) with 752 assigned prefixes. Major rate centers include Manchester, Nashua, Concord, Derry, Dover, Portsmouth, Merrimack, Salem. Received a call from a 603 number? Type the full number into the search box above to see its city, carrier, and community reports.
Prefixes in area code 603
| Prefix | City | State | Carrier |
|---|---|---|---|
| 603-354 | Keene | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-355 | Keene | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-356 | North Conway | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-357 | Keene | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-358 | Keene | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-359 | Lebanon | NH | BELL ATLANTIC MOBILE, INC |
| 603-360 | Orford | NH | TOPSHAM COMMUNICATIONS, LLC |
| 603-361 | Manchester | NH | BELL ATLANTIC MOBILE, INC |
| 603-362 | Hampstead | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-363 | Spofford | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-364 | Gilmanton Iron Works | NH | UNION TEL. CO. |
| 603-365 | Merrimack | NH | OMNIPOINT MIAMI E LICENSE, LLC |
| 603-366 | Laconia | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-367 | Madison | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-368 | Portsmouth | NH | TELEPORT COMMUNICATIONS AMERICA, LLC - NH |
| 603-369 | Concord | NH | LEVEL 3 COMMUNICATIONS, LLC - NH |
| 603-370 | Candia | NH | BELL ATLANTIC MOBILE, INC |
| 603-371 | Peterborough | NH | PAETEC ITEL, LLC |
| 603-372 | Claremont | NH | FREEDOM RING COMMUNICATIONS, LLC |
| 603-373 | Portsmouth | NH | PAETEC ITEL, LLC |
| 603-374 | Bartlett | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-375 | Ashland | NH | TWC IP ENABLED SERVICES, LLC |
| 603-376 | Dover | NH | AMERICAN MESSAGING SERVICES, LLC |
| 603-377 | Merrimack | NH | OMNIPOINT MIAMI E LICENSE, LLC |
| 603-378 | Plaistow | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-379 | Rye Beach | NH | LEVEL 3 COMMUNICATIONS, LLC - NH |
| 603-380 | Portsmouth | NH | NEW CINGULAR WIRELESS PCS, LLC - DC |
| 603-381 | West Lebanon | NH | UNITED STATES CELLULAR - NH |
| 603-382 | Plaistow | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-383 | Jackson | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-384 | Goffstown | NH | COMCAST IP PHONE, LLC |
| 603-385 | Manchester | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-386 | Salem | NH | PAETEC ITEL, LLC |
| 603-387 | Laconia | NH | BELL ATLANTIC MOBILE, INC |
| 603-388 | Colebrook | NH | FREEDOM RING COMMUNICATIONS, LLC |
| 603-389 | Durham | NH | PAETEC ITEL, LLC |
| 603-390 | Jefferson | NH | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH |
| 603-391 | Manchester | NH | TELEPORT COMMUNICATIONS AMERICA, LLC - NH |
| 603-392 | Winchester | NH | COMCAST IP PHONE, LLC |
| 603-393 | Laconia | NH | UNITED STATES CELLULAR - NH |
| 603-394 | South Hampton | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-395 | Exeter | NH | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH |
| 603-396 | Merrimack | NH | OMNIPOINT MIAMI E LICENSE, LLC |
| 603-397 | Durham | NH | COMCAST IP PHONE, LLC |
| 603-398 | West Lebanon | NH | UNITED STATES CELLULAR - NH |
| 603-399 | Westmoreland | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-400 | Hollis | NH | CHARTER IP ENABLED SERVICES, LLC |
| 603-401 | Salem | NH | BELL ATLANTIC MOBILE, INC |
| 603-402 | Nashua | NH | BELL ATLANTIC MOBILE, INC |
| 603-403 | Rochester | NH | COMCAST IP PHONE, LLC |
| 603-404 | Derry | NH | BELL ATLANTIC MOBILE, INC |
| 603-405 | Somersworth | NH | TELEPORT COMMUNICATIONS AMERICA, LLC - NH |
| 603-406 | Concord | NH | OMNIPOINT MIAMI E LICENSE, LLC |
| 603-407 | Belmont | NH | PAETEC ITEL, LLC |
| 603-408 | Berlin | NH | NEW CINGULAR WIRELESS PCS, LLC - DC |
| 603-409 | Laconia | NH | NEW CINGULAR WIRELESS PCS, LLC - DC |
| 603-410 | Concord | NH | PAETEC ITEL, LLC |
| 603-412 | Plymouth | NH | UNITED STATES CELLULAR - NH |
| 603-413 | Manchester | NH | PAETEC ITEL, LLC |
| 603-414 | Sunapee | NH | TDS METROCOM, LLC - NH |
| 603-415 | Concord | NH | FREEDOM RING COMMUNICATIONS, LLC |
| 603-416 | Raymond | NH | OMNIPOINT MIAMI E LICENSE, LLC |
| 603-417 | Nashua | NH | OMNIPOINT MIAMI E LICENSE, LLC |
| 603-418 | Exeter | NH | PAETEC ITEL, LLC |
| 603-419 | Suncook | NH | UNITED STATES CELLULAR - NH |
| 603-420 | Merrimack | NH | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH |
| 603-421 | Derry | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-422 | Portsmouth | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-423 | Merrimack | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-424 | Merrimack | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-425 | Derry | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-426 | Derry | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-427 | Portsmouth | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-428 | Henniker | NH | MERRIMACK CO. TELEPHONE CO., DBA CONTOOCOOK VALLEY |
| 603-429 | Merrimack | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-430 | Portsmouth | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-431 | Portsmouth | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-432 | Derry | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-433 | Portsmouth | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-434 | Derry | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-435 | Pittsfield | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-436 | Portsmouth | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-437 | Derry | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-438 | Nashua | NH | OMNIPOINT MIAMI E LICENSE, LLC |
| 603-439 | Keene | NH | PAETEC ITEL, LLC |
| 603-440 | Merrimack | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-441 | Rochester | NH | COMCAST IP PHONE, LLC |
| 603-442 | Lebanon | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-443 | Lebanon | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-444 | Littleton | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-445 | North Walpole | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-446 | Marlow | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-447 | Conway | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-448 | Lebanon | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-449 | Milan | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-450 | Concord | NH | OMNIPOINT MIAMI E LICENSE, LLC |
| 603-451 | Concord | NH | NEW CINGULAR WIRELESS PCS, LLC - DC |
| 603-452 | Conway | NH | FREEDOM RING COMMUNICATIONS, LLC |
| 603-453 | Hampstead | NH | AT&T - LOCAL |
| 603-454 | Sunapee | NH | UNITED STATES CELLULAR - NH |
| 603-455 | Laconia | NH | UNITED STATES CELLULAR - NH |
| 603-456 | Warner | NH | MERRIMACK COUNTY TEL. CO. |
| 603-457 | Dover | NH | IDT AMERICA, CORP. - NH |
| 603-458 | Salem | NH | COMCAST IP PHONE, LLC |
| 603-459 | Nashua | NH | PAETEC ITEL, LLC |
| 603-460 | Deerfield | NH | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH |
| 603-461 | Merrimack | NH | UNITED STATES CELLULAR - NH |
| 603-462 | Deerfield | NH | FREEDOM RING COMMUNICATIONS, LLC |
| 603-463 | Deerfield | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-464 | Hillsboro | NH | MERRIMACK CO. TELEPHONE CO., DBA CONTOOCOOK VALLEY |
| 603-465 | Hollis | NH | HOLLIS TELEPHONE COMPANY, INC. |
| 603-466 | Gorham | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-467 | Manchester | NH | WAVENATION, LLC |
| 603-468 | Seabrook | NH | FREEDOM RING COMMUNICATIONS, LLC |
| 603-469 | Meriden | NH | KEARSARGE TEL. CO. |
| 603-470 | Concord | NH | UNITED STATES CELLULAR - NH |
| 603-471 | Bedford | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-472 | Bedford | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-473 | Milton Mills | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-474 | Seabrook | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-475 | Salem | NH | BELL ATLANTIC MOBILE, INC |
| 603-476 | Center Sandwich | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-477 | Claremont | NH | UNITED STATES CELLULAR - NH |
| 603-478 | Hillsboro Upper Village | NH | GRANITE STATE TEL., INC. |
| 603-479 | Derry | NH | NEW CINGULAR WIRELESS PCS, LLC - DC |
| 603-480 | Manchester | NH | BANDWIDTH.COM CLEC, LLC - NH |
| 603-481 | Plymouth | NH | BELL ATLANTIC MOBILE, INC |
| 603-482 | Errol | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-483 | Candia | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-484 | Nashua | NH | BELL ATLANTIC MOBILE, INC |
| 603-485 | Suncook | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-486 | Manchester | NH | UNITED STATES CELLULAR - NH |
| 603-487 | New Boston | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-488 | Bedford | NH | COMCAST IP PHONE, LLC |
| 603-489 | Hampstead | NH | COMCAST IP PHONE, LLC |
| 603-490 | Derry | NH | BELL ATLANTIC MOBILE, INC |
| 603-491 | Concord | NH | BELL ATLANTIC MOBILE, INC |
| 603-492 | Manchester | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-493 | Merrimack | NH | BELL ATLANTIC MOBILE, INC |
| 603-494 | Merrimack | NH | BELL ATLANTIC MOBILE, INC |
| 603-495 | Washington | NH | GRANITE STATE TEL., INC. |
| 603-496 | Concord | NH | BELL ATLANTIC MOBILE, INC |
| 603-497 | Goffstown | NH | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH |
| 603-498 | Portsmouth | NH | BELL ATLANTIC MOBILE, INC |
| 603-499 | Keene | NH | LEVEL 3 COMMUNICATIONS, LLC - NH |
| 603-500 | Tilton | NH | FRACTEL, LLC |
| 603-501 | Portsmouth | NH | PAETEC ITEL, LLC |
| 603-502 | Portsmouth | NH | NEW CINGULAR WIRELESS PCS, LLC - DC |
| 603-503 | Lancaster | NH | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH |
| 603-504 | Claremont | NH | UNITED STATES CELLULAR - NH |
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