The Area Codes of United Kingdom: City/Town or RegionArea code 1.Halifax01422 (+441422) 2.Harris, Outer Hebrides01859 (+441859) 3.Harthill01501 (+441501) 4.Hartlepool01429 (+441429) 5.Haslemere01428 (+441428) 6.Hastings01424 (+441424) 7.Hathersage01433 (+441433) 8.Haverhill01440 (+441440) 9.Hawick01450 (+441450) 10.Hawkshead015394 (+4415394) 11.Hay-on-Wye01497 (+441497) 12.Haywards Heath01444 (+441444) 13.Heathfield01435 (+441435) 14.Helensburgh01436 (+441436) 15.Helmsdale01431 (+441431) 16.Helmsley01439 (+441439) 17.Hemel Hempstead01442 (+441442) 18.Henley-on-Thames01491 (+441491) 19.Hereford01432 (+441432) 20.High Wycombe01494 (+441494) 21.Hinckley01455 (+441455) 22.Hitchin01462 (+441462) 23.Holbeach01406 (+441406) 24.Holmes Chapel01477 (+441477) 25.Holsworthy01409 (+441409) 26.Holyhead01407 (+441407) 27.Honington01400 (+441400) 28.Honiton01404 (+441404) 29.Hornby-with-Farleton015242 (+4415242) 30.Hornsea and Patrington01964 (+441964) 31.Horsham01403 (+441403) 32.Huddersfield01484 (+441484) 33.Hull01482 (+441482) 34.Hungerford01488 (+441488) 35.Hunstanton01485 (+441485) 36.Huntingdon01480 (+441480) 37.Huntly01466 (+441466)