City/Town	Area Code	Zip Code	County	Code
Haileyville	918	74546	Pittsburg	40121
Hallett	918	74034	Pawnee	40117
Hammon	405	73650	Roger Mills	40129
Hanna	918	74845	McIntosh	40091
Harden City	405	74871	Pontotoc	40123
Hardesty	405	73944	Texas	40139
Harmon	405	73832	Ellis	40045
Harrah	405	73045	Oklahoma	40109
Harris	405	74740	McCurtain	40089
Hartshorne	918	74547	Pittsburg	40121
Haskell	918	74436	Muskogee	40101
Hastings	405	73548	Jefferson	40067
Haworth	405	74740	McCurtain	40089
Hayward	405	73730	Garfield	40047
Haywood	918	74548	Pittsburg	40121
Headrick	405	73549	Jackson	40065
Healdton	405	73438	Carter	40019
Heavener	918	74937	LeFlore	40079
Helena	405	73741	Alfalfa	40003
Hendrix	405	74741	Bryan	40013
Hennepin	405	73046	Garvin	40049
Hennessey	405	73742	Kingfisher	40073
Henryetta	918	74437	Okmulgee	40111
Hickory	405	74865	Murray	40099
Hillsdale	405	73743	Garfield	40047
Hinton	405	73047	Caddo	40015
Hitchcock	405	73744	Blaine	40011
Hltchita	918	74438	McIntosh	40091
Hobart	405	73651	Kiowa	40075
Hockerville	918	74363	Ottawa	40115
Hodgen	918	74939	LeFlore	40079
Hoffman	918	74437	Okmulgee	40111
Holdenville	405	74848	Hughes	40063
Hollis	405	73550	Harmon	40057
Hollister	405	73551	Tillman	40141
Homestead	405	73763	Blaine	40011
Hominy	918	74035	Osage	40113
Honobia	918	74549	LeFlore	40079
Hooker	405	73945	Texas	40139
Hopeton	405	73746	Woods	40151
Howe	918	74940	LeFlore	40079
Hoyt	918	74440	Haskell	40061
Hugo	405	74743	Choctaw	40023
Hulbert	918	74441	Cherokee	40021
Hunter	405	74640	Garfield	40047
Hydro	405	73048	Caddo	40015