A

• [+] Area codes in Alabama (6 P)
• [+] Area codes in Alaska (2 P)
• [+] Area codes in Arizona (6 P)
• [+] Area codes in Arkansas (4 P)

C

• [+] Area codes in California (28 P)
• [+] Area codes in Colorado (4 P)
• [+] Area codes in Connecticut (4 P)

D

• [+] Area codes in Delaware (1 P)
• [+] Area codes in Washington, D.C. (1 P)

F

• [+] Area codes in Florida (15 P)

G

• [+] Area codes in Georgia (U.S. state) (9 P)

H

• [+] Area codes in Hawaii (1 P)

I

• [+] Area codes in Idaho (1 P)
• [+] Area codes in Illinois (11 P)
• [+] Area codes in Indiana (7 P)
• [+] Area codes in Iowa (6 P)

K

• [+] Area codes in Kansas (5 P)

K cont.

• [+] Area codes in Kentucky (6 P)

L

• [+] Area codes in Louisiana (6 P)

M

• [+] Area codes in Maine (1 P)
• [+] Area codes in Maryland (3 P)
• [+] Area codes in Massachusetts (7 P)
• [+] Area codes in Michigan (12 P)
• [+] Area codes in Minnesota (8 P)
• [+] Area codes in Mississippi (4 P)
• [+] Area codes in Missouri (7 P)
• [+] Area codes in Montana (1 P)

N

• [+] Area codes in Nebraska (2 P)
• [+] Area codes in Nevada (2 P)
• [+] Area codes in New Hampshire (1 P)
• [+] Area codes in New Jersey (7 P)
• [+] Area codes in New Mexico (3 P)
• [+] Area codes in New York (15 P)
• [+] Area codes in North Carolina (7 P)

N cont.

• [+] Area codes in North Dakota (1 P)

O

• [+] Area codes in Ohio (8 P)
• [+] Area codes in Oklahoma (4 P)
• [+] Area codes in Oregon (4 P)

P

• [+] Area codes in Pennsylvania (11 P)

R

• [+] Area codes in Rhode Island (1 P)

S

• [+] Area codes in South Carolina (4 P)
• [+] Area codes in South Dakota (1 P)

T

• [+] Area codes in Tennessee (7 P)
• [+] Area codes in Texas (19 P)

U

• [+] Area codes in Utah (3 P)

V

• [+] Area codes in Vermont (1 P)
• [+] Area codes in Virginia (6 P)

W

• [+] Area codes in Washington (U.S. state) (7 P)
• [+] Area codes in West Virginia (1 P)
• [+] Area codes in Wisconsin (8 P)
• [+] Area codes in Wyoming (1 P)