Newmarket, New Hampshire
Newmarket, New Hampshire, in Rockingham County, has ZIP code 03857 and area code 603.
- ZIP code
- 03857
- Area code
- 603
- County
- Rockingham County
- State
- New Hampshire
- Time zone
- Eastern Time
- Coordinates
- 43.0726, -70.9553
ZIP codes in Newmarket
| ZIP code | Post office | County | Area codes |
|---|---|---|---|
| 03857 | Newmarket | Rockingham County | 603 |
Area code for Newmarket
- Area code 603
In service since 1947. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.
Time zone
Newmarket is in the Eastern Time zone.
Towns near Newmarket
Local numbers in area code 603
Looking for a phone number with a Newmarket area code? These 603 numbers are for sale through Exclusive Digits. Portable to Verizon, AT&T, T-Mobile and all major US carriers.
- (603) 859-8384New Durham, NH$59View & buy
- (603) 859-8386New Durham, NH$59View & buy
- (603) 859-8836New Durham, NH$59View & buy
- (603) 896-9881Salem, NHAlso spells TWO$59View & buy
- (603) 903-1236Keene, NHAlso spells CEO, CFO, BEN$59View & buy
- (603) 912-2234Salem, NHAlso spells BABE, AAA, ACE$59View & buy
- (603) 912-8788Salem, NH$59View & buy
- (603) 915-4565Gorham, NH$59View & buy
- (603) 932-4328Manchester, NHAlso spells HEAT, YEAH, IDC$59View & buy
- (603) 932-5673Manchester, NHAlso spells CLOSE, LORD, WEAK$59View & buy
- (603) 932-7658Manchester, NHAlso spells YEAR, WEAR, ROKU$59View & buy
- (603) 945-1238Manchester, NHAlso spells BET$59View & buy
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