Active Prefixes in Area Code 603
| Prefix | Primary City | Phone Type | Company |
|---|---|---|---|
| 603-297-#### | Center Ossipee | Landline Numbers | Freedom Ring Communi... |
| 603-298-#### | West Lebanon | Landline Numbers | No New England Tel O... |
| 603-300-#### | Chester | Wireless Numbers | Sprint Spectrum L.p.... |
| 603-301-#### | Center Ossipee | Landline Numbers | Rnk, Inc.... |
| 603-302-#### | Manchester | Landline Numbers | No New England Tel O... |
| 603-303-#### | Manchester | Landline Numbers | Bell Atlantic Nynex ... |
| 603-304-#### | Enfield | Wireless Numbers | United States Cellul... |
| 603-305-#### | Bedford | Landline Numbers | Bell Atlantic Nynex ... |
| 603-306-#### | Lebanon | Landline Numbers | National Mobile Comm... |
| 603-307-#### | North Conway | Landline Numbers | Bell Atlantic Nynex ... |
| 603-310-#### | Bedford | Landline Numbers | Ctc Communications C... |
| 603-312-#### | Dover | Landline Numbers | Bell Atlantic Nynex ... |
| 603-313-#### | Keene | Wireless Numbers | United States Cellul... |
| 603-314-#### | Manchester | Landline Numbers | Lightship Telecom, L... |
| 603-315-#### | Manchester | Landline Numbers | Bell Atlantic Nynex ... |
| 603-317-#### | Milan | Landline Numbers | Brooks Fiber Communi... |
| 603-318-#### | Nashua | Landline Numbers | Rnk, Inc.... |
| 603-319-#### | Portsmouth | Landline Numbers | Lightship Telecom, L... |
| 603-320-#### | Nashua | Wireless Numbers | New Cingular Wireles... |
| 603-321-#### | Nashua | Landline Numbers | Bell Atlantic Nynex ... |
| 603-322-#### | West Lebanon | Wireless Numbers | New Cingular Wireles... |
| 603-323-#### | Tamworth | Landline Numbers | No New England Tel O... |
| 603-324-#### | Nashua | Landline Numbers | Brooks Fiber Communi... |
| 603-325-#### | Manchester | Landline Numbers | Brooks Fiber Communi... |
| 603-326-#### | Berlin | Landline Numbers | Level 3 Communicatio... |
| 603-327-#### | Salem | Landline Numbers | Lightship Telecom, L... |
| 603-328-#### | Salem | Landline Numbers | Paetec Communication... |
| 603-329-#### | Hampstead | Landline Numbers | No New England Tel O... |
| 603-330-#### | Rochester | Landline Numbers | No New England Tel O... |
| 603-331-#### | Colebrook | Landline Numbers | Level 3 Communicatio... |
Area Code 603 Introduction
| Area Code: | 603 |
| Country: | United States |
| State/Province: | New Hampshire - NH |
| Major City: | Manchester |
| Time Zone: | Eastern |
| Average property | $256K |
| Average age | 53 y/o |
| Average assets | $60.1K |
| Population density | 9,349 sq mi (24,214 km2) |
| Population | 1,330,608 |
| latitude Longitude: | |
| 42° 42′ N to 45° 18′ N / 70° 36′ W to 72° 33′ W | |
| About 603 : | |
| The 603 Area Code (or Area Code 603) is located in the state of NH. Area Code 603 is one of the 269 3-digit telephone area codes in the USA. It covers roughly 1.44 million unique phone numbers and 5.14 million individuals near the city of Newmarket |
|
| Major cities or places | |
| Derry, NH>Dover, NH>Keene, NH>Manchester, NH>Nashua, NH>Portsmouth, NH>Rochester, NH | |