To faciltiate users, the United States of America is divided into regions known as Area Codes, corresponding to particular geographic telephone dialing areas.
An area code denotes the regional location of a phone number within the United States.
The Area Code table below shows an area codes each.
Area Code 443 listing, by city
@The cities listed with each area code are the major cities for that area code;
| City / State | Area code | Zip Code | County | Iso | |
|---|---|---|---|---|---|
| Annapolis (Maryland) | 443 | 21409 | Anne Arundel | US-MD | |
| Annapolis (Maryland) | 443 | 21402 | Anne Arundel | US-MD | |
| Annapolis (Maryland) | 443 | 21403 | Anne Arundel | US-MD | |
| Annapolis (Maryland) | 443 | 21405 | Anne Arundel | US-MD | |
| Annapolis (Maryland) | 443 | 21403 | Anne Arundel | US-MD | |
| Annapolis (Maryland) | 443 | 21405 | Anne Arundel | US-MD | |
| Annapolis Junction (Maryland) | 443 | 20701 | Howard | US-MD | |
| Baltimore (Maryland) | 443 | 21205 | Baltimore city | US-MD | |
| Baltimore (Maryland) | 443 | 21206 | Baltimore city | US-MD | |
| Baltimore (Maryland) | 443 | 21211 | Baltimore city | US-MD | |
| Baltimore (Maryland) | 443 | 21213 | Baltimore city | US-MD | |
| Baltimore (Maryland) | 443 | 21217 | Baltimore city | US-MD | |
| Baltimore (Maryland) | 443 | 21233 | Baltimore City | US-MD | |
| Baltimore (Maryland) | 443 | 21240 | Anne Arundel | US-MD | |
| Baltimore (Maryland) | 443 | 21240 | Anne Arundel | US-MD | |
| Bel Air (Maryland) | 443 | 21014 | Harford | US-MD | |
| Bel Air (Maryland) | 443 | 21015 | Harford | US-MD | |
| Berlin (Maryland) | 443 | 21811 | Worcester | US-MD | |
| Bishopville (Maryland) | 443 | 21813 | Worcester | US-MD | |
| Brooklyn (Maryland) | 443 | 21225 | Baltimore city | US-MD | |
| Cambridge (Maryland) | 443 | 21613 | Dorchester | US-MD | |
| Catonsville (Maryland) | 443 | 21228 | Baltimore | US-MD | |
| Centreville (Maryland) | 443 | 21617 | Queen Anne | US-MD | |
| Chestertown (Maryland) | 443 | 21620 | Kent | US-MD | |
| Churchville (Maryland) | 443 | 21028 | Harford | US-MD | |
| Cockeysville (Maryland) | 443 | 21030 | Baltimore | US-MD | |
| Columbia (Maryland) | 443 | 21044 | Howard | US-MD | |
| Columbia (Maryland) | 443 | 21045 | Howard | US-MD | |
| Columbia (Maryland) | 443 | 21046 | Howard | US-MD | |
| Columbia (Maryland) | 443 | 21044 | Howard | US-MD | |
| Columbia (Maryland) | 443 | 21045 | Howard | US-MD | |
| Crisfield (Maryland) | 443 | 21817 | Somerset | US-MD | |
| Crofton (Maryland) | 443 | 21114 | Anne Arundel | US-MD | |
| Curtis Bay (Maryland) | 443 | 21226 | Anne Arundel | US-MD | |
| Darlington (Maryland) | 443 | 21034 | Harford | US-MD | |
| Delmar (Maryland) | 443 | 21875 | Wicomico | US-MD | |
| Denton (Maryland) | 443 | 21629 | Caroline | US-MD | |
| Dundalk (Maryland) | 443 | 21222 | Baltimore | US-MD | |
| Easton (Maryland) | 443 | 21601 | Talbot | US-MD | |
| Eden (Maryland) | 443 | 21822 | Somerset | US-MD | |
| Edgewood (Maryland) | 443 | 21040 | Harford | US-MD | |
| Elkton (Maryland) | 443 | 21921 | Cecil | US-MD | |
| Ellicott City (Maryland) | 443 | 21042 | Howard | US-MD | |
| Ellicott City (Maryland) | 443 | 21043 | Howard | US-MD | |
| Essex (Maryland) | 443 | 21221 | Baltimore | US-MD | |
| Fallston (Maryland) | 443 | 21047 | Harford | US-MD | |
| Federalsburg (Maryland) | 443 | 21632 | Caroline | US-MD | |
| Finksburg (Maryland) | 443 | 21048 | Carroll | US-MD | |
| Fork (Maryland) | 443 | 21051 | Baltimore | US-MD | |
| Glen Burnie (Maryland) | 443 | 21061 | Anne Arundel | US-MD | |
| Glenwood (Maryland) | 443 | 21738 | Howard | US-MD | |
| Glyndon (Maryland) | 443 | 21071 | Baltimore | US-MD | |
| Gwynn Oak (Maryland) | 443 | 21207 | Baltimore | US-MD | |
| Gwynn Oak (Maryland) | 443 | 21207 | Baltimore | US-MD | |
| Hampstead (Maryland) | 443 | 21074 | Carroll | US-MD | |
| Hanover (Maryland) | 443 | 21076 | Anne Arundel | US-MD | |
| Harmans (Maryland) | 443 | 21077 | Anne Arundel | US-MD | |
| Havre De Grace (Maryland) | 443 | 21078 | Harford | US-MD | |
| Havre De Grace (Maryland) | 443 | 21078 | Harford | US-MD | |
| Hebron (Maryland) | 443 | 21830 | Wicomico | US-MD | |
| Huntingtown (Maryland) | 443 | 20639 | Calvert | US-MD | |
| Jarrettsville (Maryland) | 443 | 21084 | Harford | US-MD | |
| Jessup (Maryland) | 443 | 20794 | Howard | US-MD | |
| Joppa (Maryland) | 443 | 21085 | Harford | US-MD | |
| Kingsville (Maryland) | 443 | 21087 | Baltimore | US-MD | |
| Laurel (Maryland) | 443 | 20707 | Prince Georges | US-MD | |
| Laurel (Maryland) | 443 | 20708 | Prince Georges | US-MD | |
| Laurel (Maryland) | 443 | 20723 | Howard | US-MD | |
| Laurel (Maryland) | 443 | 20724 | Anne Arundel | US-MD | |
| Laurel (Maryland) | 443 | 20707 | Prince Georges | US-MD | |
| Laurel (Maryland) | 443 | 20708 | Prince Georges | US-MD | |
| Laurel (Maryland) | 443 | 20723 | Howard | US-MD | |
| Laurel (Maryland) | 443 | 20724 | Anne Arundel | US-MD | |
| Linkwood (Maryland) | 443 | 21835 | Dorchester | US-MD | |
| Manchester (Maryland) | 443 | 21102 | Carroll | US-MD | |
| Mardela Springs (Maryland) | 443 | 21837 | Wicomico | US-MD | |
| Marriottsville (Maryland) | 443 | 21104 | Carroll | US-MD | |
| Middle River (Maryland) | 443 | 21220 | Baltimore | US-MD | |
| Millersville (Maryland) | 443 | 21108 | Anne Arundel | US-MD | |
| Nanticoke (Maryland) | 443 | 21840 | Wicomico | US-MD | |
| New Windsor (Maryland) | 443 | 21776 | Carroll | US-MD | |
| North Beach (Maryland) | 443 | 20714 | Calvert | US-MD | |
| North Beach (Maryland) | 443 | 20714 | Calvert | US-MD | |
| North East (Maryland) | 443 | 21901 | Cecil | US-MD | |
| Ocean City (Maryland) | 443 | 21842 | Worcester | US-MD | |
| Odenton (Maryland) | 443 | 21113 | Anne Arundel | US-MD | |
| Odenton (Maryland) | 443 | 21113 | Anne Arundel | US-MD | |
| Parkton (Maryland) | 443 | 21120 | Baltimore | US-MD | |
| Parkville (Maryland) | 443 | 21234 | Baltimore | US-MD | |
| Pasadena (Maryland) | 443 | 21122 | Anne Arundel | US-MD | |
| Perryville (Maryland) | 443 | 21903 | Cecil | US-MD | |
| Pocomoke City (Maryland) | 443 | 21851 | Worcester | US-MD | |
| Port Deposit (Maryland) | 443 | 21904 | Cecil | US-MD | |
| Port Republic (Maryland) | 443 | 20676 | Calvert | US-MD | |
| Prince Frederick (Maryland) | 443 | 20678 | Calvert | US-MD | |
| Princess Anne (Maryland) | 443 | 21853 | Somerset | US-MD | |
| Queenstown (Maryland) | 443 | 21658 | Queen Anne | US-MD | |
| Randallstown (Maryland) | 443 | 21133 | Baltimore | US-MD | |
| Reisterstown (Maryland) | 443 | 21136 | Baltimore | US-MD | |
| Rhodesdale (Maryland) | 443 | 21659 | Dorchester | US-MD | |
| Salisbury (Maryland) | 443 | 21804 | Wicomico | US-MD | |
| Savage (Maryland) | 443 | 20763 | Howard | US-MD | |
| Severn (Maryland) | 443 | 21144 | Anne Arundel | US-MD | |
| Severna Park (Maryland) | 443 | 21146 | Anne Arundel | US-MD | |
| Snow Hill (Maryland) | 443 | 21863 | Worcester | US-MD | |
| Sparks Glencoe (Maryland) | 443 | 21152 | Baltimore | US-MD | |
| Sparrows Point (Maryland) | 443 | 21219 | Baltimore | US-MD | |
| Stevensville (Maryland) | 443 | 21666 | Queen Anne | US-MD | |
| Sykesville (Maryland) | 443 | 21784 | Carroll | US-MD | |
| Taneytown (Maryland) | 443 | 21787 | Carroll | US-MD | |
| Towson (Maryland) | 443 | 21286 | Baltimore | US-MD | |
| Towson (Maryland) | 443 | 21286 | Baltimore | US-MD | |
| Trappe (Maryland) | 443 | 21673 | Talbot | US-MD | |
| Union Bridge (Maryland) | 443 | 21791 | Carroll | US-MD | |
| West River (Maryland) | 443 | 20778 | Anne Arundel | US-MD | |
| Westminster (Maryland) | 443 | 21157 | Carroll | US-MD | |
| Westminster (Maryland) | 443 | 21158 | Carroll | US-MD | |
| Whiteford (Maryland) | 443 | 21160 | Harford | US-MD | |
| Willards (Maryland) | 443 | 21874 | Wicomico | US-MD |