Houston Dialing Codes - At a Glance

Below is a recap of the important dialing codes you may need for making calls to, from, or within Houston.

Follow links for additional information on any code - or to look up that code for other countries.

Country code (ISD):
+1
International access code (IDD):
+011
National long distance code (NDD):
+1
Area codes:
281, 713, 832, more...
Area code format:
aaa
Landline subscriber numbers:
nnn nnnn
Mobile subscriber numbers:
nnn nnnn

Houston phone numbers are 10-digits long consisting of a 3-digit area code and a 7-digit local subscriber number. The phone number format is the same for both landline and mobile phones.

Additional Houston dialing and calling information is provided throughout this site.

Houston dialing instructions
Houston phone numbers
Recommended calling cards
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