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NDC: 603

This is the National Destination Code(NDC):603 page list. Its detail is as below.
Area code 603 is one of the original 86 area codes created by AT&T and the Bell System in 1947. It originally served the entire state of New Hampshire. To avoid exhausting all possible phone numbers in this area code, relief planning has begun. Currently, it covers the entire state of New Hampshire, and it overlaps coverage areas with area code .
Prefix State Primary city Usage Carrier
(603) 200- New Hampshire Newmarket Landline Comcast Phone Of New Hampshire
(603) 203- New Hampshire Manchester Wireless New Cingular Wireless PCS - DC
(603) 204- New Hampshire Nashua Wireless United States Cellular Corp. - New Hampshire
(603) 205- New Hampshire Portsmouth Wireless Omnipoint Miami E License
(603) 206- New Hampshire Manchester Landline Paetec Communications
(603) 208- New Hampshire Lyme Wireless United States Cellular Corp. - New Hampshire
(603) 209- New Hampshire Keene Wireless United States Cellular Corp. - New Hampshire
(603) 210- New Hampshire Manchester Landline Comcast Phone Of New Hampshire
(603) 212- New Hampshire Salem Landline No New England Tel Op DBA Fairpoint Comm
(603) 213- New Hampshire Derry Wireless Comcast Phone Of New Hampshire
(603) 214- New Hampshire Errol Landline Freedom Ring Communications
(603) 215- New Hampshire Berlin Landline Freedom Ring Communications
(603) 216- New Hampshire Manchester Landline Comcast Phone Of New Hampshire
(603) 217- New Hampshire Bristol Landline Bell Atlantic Nynex Mobile
(603) 218- New Hampshire Manchester Landline Broadview Networks
(603) 219- New Hampshire Concord Wireless Sprint Spectrum L.p.
(603) 221- New Hampshire Nashua Wireless No New England Tel Op DBA Fairpoint Comm
(603) 222- New Hampshire Manchester Landline No New England Tel Op DBA Fairpoint Comm
(603) 223- New Hampshire Concord Landline No New England Tel Op DBA Fairpoint Comm
(603) 224- New Hampshire Concord Landline No New England Tel Op DBA Fairpoint Comm
(603) 225- New Hampshire Concord Landline No New England Tel Op DBA Fairpoint Comm
(603) 226- New Hampshire Concord Landline No New England Tel Op DBA Fairpoint Comm
(603) 227- New Hampshire Concord Landline No New England Tel Op DBA Fairpoint Comm
(603) 228- New Hampshire Concord Landline No New England Tel Op DBA Fairpoint Comm
(603) 229- New Hampshire Concord Landline No New England Tel Op DBA Fairpoint Comm
(603) 230- New Hampshire Concord Landline No New England Tel Op DBA Fairpoint Comm
(603) 231- New Hampshire Derry Wireless Sprint Spectrum L.p.
(603) 232- New Hampshire Manchester Landline Comcast Phone Of New Hampshire
(603) 233- New Hampshire Nashua Wireless Omnipoint Miami E License
(603) 234- New Hampshire Derry Wireless Sprint Spectrum L.p.
(603) 235- New Hampshire Derry Wireless Sprint Spectrum L.p.
(603) 236- New Hampshire Wonalancet Landline No New England Tel Op DBA Fairpoint Comm
(603) 237- New Hampshire Colebrook Landline No New England Tel Op DBA Fairpoint Comm
(603) 238- New Hampshire Plymouth Landline Paetec Communications
(603) 239- New Hampshire Winchester Landline No New England Tel Op DBA Fairpoint Comm
(603) 240- New Hampshire Manchester Wireless No New England Tel Op DBA Fairpoint Comm
(603) 241- New Hampshire Manchester Wireless No New England Tel Op DBA Fairpoint Comm
(603) 242- New Hampshire Troy Landline No New England Tel Op DBA Fairpoint Comm
(603) 243- New Hampshire Woodsville Landline Charter Fiberlink
(603) 244- New Hampshire Manchester Landline Comcast Phone Of New Hampshire
(603) 245- New Hampshire Portsmouth Landline No New England Tel Op DBA Fairpoint Comm
(603) 246- New Hampshire Colebrook Landline No New England Tel Op DBA Fairpoint Comm
(603) 247- New Hampshire Derry Wireless New Cingular Wireless PCS - DC
(603) 248- New Hampshire Dover Wireless No New England Tel Op DBA Fairpoint Comm
(603) 249- New Hampshire Milford Landline No New England Tel Op DBA Fairpoint Comm
(603) 250- New Hampshire Meredith Landline Freedom Ring Communications
(603) 251- New Hampshire Salem Landline Paetec Communications
(603) 252- New Hampshire W Lebanon Wireless United States Cellular Corp. - New Hampshire
(603) 253- New Hampshire Meredith Landline No New England Tel Op DBA Fairpoint Comm
(603) 254- New Hampshire Plymouth Wireless United States Cellular Corp. - New Hampshire
(603) 255- New Hampshire Colebrook Landline Dixville Telephone Co.
(603) 256- New Hampshire West Chesterfield Landline No New England Tel Op DBA Fairpoint Comm
(603) 257- New Hampshire Plaistow Landline Freedom Ring Communications
(603) 259- New Hampshire Littleton Landline Level 3 Communications
(603) 260- New Hampshire Derry Wireless Comcast Phone Of New Hampshire
(603) 261- New Hampshire Merrimack Wireless United States Cellular Corp. - New Hampshire
(603) 262- New Hampshire Merrimack Landline No New England Tel Op DBA Fairpoint Comm
(603) 263- New Hampshire Manchester Landline Brooks Fiber Communications Of New Hampshire
(603) 264- New Hampshire Manchester Wireless Omnipoint Miami E License
(603) 265- New Hampshire New Boston Wireless Omnipoint Miami E License
(603) 266- New Hampshire Tilton Landline No New England Tel Op DBA Fairpoint Comm
(603) 267- New Hampshire Belmont Landline No New England Tel Op DBA Fairpoint Comm
(603) 268- New Hampshire Suncook Landline No New England Tel Op DBA Fairpoint Comm
(603) 269- New Hampshire Rumney Landline Union Telephone Co.
(603) 270- New Hampshire Manchester Landline Brooks Fiber Communications Of New Hampshire
(603) 271- New Hampshire Concord Landline No New England Tel Op DBA Fairpoint Comm
(603) 272- New Hampshire Piermont Landline No New England Tel Op DBA Fairpoint Comm
(603) 273- New Hampshire Laconia Landline Brooks Fiber Communications Of New Hampshire
(603) 274- New Hampshire East Kingston Landline Brooks Fiber Communications Of New Hampshire
(603) 275- New Hampshire Derry Wireless Omnipoint Miami E License
(603) 276- New Hampshire W Lebanon Wireless Bell Atlantic Nynex Mobile
(603) 277- New Hampshire Hanover Landline Comcast Phone Of New Hampshire
(603) 278- New Hampshire Jefferson Landline Bretton Woods Telephone Co.
(603) 279- New Hampshire Meredith Landline No New England Tel Op DBA Fairpoint Comm
(603) 280- New Hampshire Barrington Landline Level 3 Communications
(603) 281- New Hampshire Nashua Wireless No New England Tel Op DBA Fairpoint Comm
(603) 282- New Hampshire Canaan Landline Brooks Fiber Communications Of New Hampshire
(603) 283- New Hampshire Keene Landline Paetec Communications
(603) 284- New Hampshire North Sandwich Landline No New England Tel Op DBA Fairpoint Comm
(603) 285- New Hampshire Dover Landline Brooks Fiber Communications Of New Hampshire
(603) 286- New Hampshire Tilton Landline No New England Tel Op DBA Fairpoint Comm
(603) 287- New Hampshire Claremont Landline Level 3 Communications
(603) 289- New Hampshire Manchester Wireless New Cingular Wireless PCS - DC
(603) 290- New Hampshire Concord Wireless United States Cellular Corp. - New Hampshire
(603) 291- New Hampshire Greenville Landline Comcast Phone Of New Hampshire
(603) 292- New Hampshire Newmarket Landline Comcast Phone Of New Hampshire
(603) 293- New Hampshire Laconia Landline No New England Tel Op DBA Fairpoint Comm
(603) 294- New Hampshire Portsmouth Landline Level 3 Communications
(603) 295- New Hampshire Durham Landline Paetec Communications
(603) 296- New Hampshire Manchester Landline Choice One Communications Of New Hampshire
(603) 297- New Hampshire Ctr Ossipee Landline Freedom Ring Communications
(603) 298- New Hampshire W Lebanon Landline No New England Tel Op DBA Fairpoint Comm
(603) 300- New Hampshire Chester Wireless Sprint Spectrum L.p.
(603) 301- New Hampshire Ctr Ossipee Landline Level 3 Communications
(603) 302- New Hampshire Manchester Wireless No New England Tel Op DBA Fairpoint Comm
(603) 303- New Hampshire Manchester Wireless Bell Atlantic Nynex Mobile
(603) 304- New Hampshire Enfield Wireless United States Cellular Corp. - New Hampshire
(603) 305- New Hampshire Bedford Wireless Bell Atlantic Nynex Mobile
(603) 306- New Hampshire Lebanon Landline National Mobile Communications Corporation - VT
(603) 307- New Hampshire North Conway Wireless Bell Atlantic Nynex Mobile