Area Code 918: Tulsa, Oklahoma
918 is a telephone area code serving Oklahoma, including Tulsa. It is part of the North American Numbering Plan and is dialed with the country code +1.
Numbers beginning with 918 are located in Oklahoma, United States (NANP region: Northeast). The code covers Tulsa.
How to Dial Area Code 918
| Calling from | What to dial |
|---|---|
| Anywhere in the US or Canada | 1 918 XXX-XXXX (10-digit dialing: 918 + 7-digit number) |
| Local call inside the same area code | 7-digit number in most areas; 10 digits where an overlay code is active |
| From the UK or Europe | 00 1 918 XXX XXXX |
| From Australia | 0011 1 918 XXX XXXX |
| From a mobile phone anywhere | +1 918 XXX XXXX |
Whatever country you are calling from, the + symbol replaces the exit code. Save the contact as +1 918 XXXXXXX and it will dial correctly from any phone in the world.
Time Zone for Area Code 918
Calls to a 918 number ring in the America/Chicago time zone, standard offset UTC-06:00. Daylight saving time applies here, so the offset moves forward one hour from March to November.
Cities and Communities Served by 918
The following places fall inside the 918 calling area:
Other Area Codes in Oklahoma
These codes also serve Oklahoma. Area codes are assigned by the North American Numbering Plan Administration (NANPA).
See all 4 area codes in Oklahoma →
Frequently Asked Questions
Where is area code 918?
Area code 918 is in Oklahoma, United States. It covers Tulsa.
What time zone is area code 918 in?
Area code 918 rings in the America/Chicago time zone (UTC-06:00 standard).
Do I need to dial 1 before area code 918?
Yes, for a long-distance call inside the US and Canada you dial 1 first, then 918, then the seven-digit number. The 1 is the North American long-distance trunk prefix — it is not the country code. From outside North America you dial your exit code then 1 then 918.
Is area code 918 toll-free?
No. 918 is a standard geographic area code, so normal long-distance rates apply unless your plan includes them. Toll-free NANP codes are 800, 833, 844, 855, 866, 877 and 888.