The Area Codes of United Kingdom: City/Town or RegionArea code 1.Nairn01667 (+441667) 2.Narberth01834 (+441834) 3.Neath01639 (+441639) 4.New Galloway01644 (+441644) 5.New Luce01581 (+441581) 6.New Mills01663 (+441663) 7.Newark-on-Trent01636 (+441636) 8.Newbury01635 (+441635) 9.Newcastle (Northern Ireland)02843 (+442843) 10.Newmarket01638 (+441638) 11.Newport01633 (+441633) 12.Newquay01637 (+441637) 13.Newry (Northern Ireland)02830 (+442830) 14.Newton Abbot01626 (+441626) 15.Newton Stewart01671 (+441671) 16.Newtownstewart (Northern Ireland)02881 (+442881) 17.North Berwick01620 (+441620) 18.North Walsham01692 (+441692) 19.Northallerton01609 (+441609) 20.Northampton01604 (+441604) 21.Northern Ireland028 (+4428) 22.Northwich01606 (+441606) 23.Norwich01603 (+441603) 24.Nottingham0115 (+44115)