Texas · Central Time
972 Area Code
Area code 972 is in Texas, serving Dallas and its suburbs in Dallas, Collin, Rockwall and nearby counties, North Texas. It is in the Central Time zone. It shares its territory with overlay codes 214, 469 and 945, so 10-digit dialing is required.
Last updated October 1, 2026 · Source: NANPA
Where is the 972 area code?
972 is a Texas area code covering Dallas and its suburbs in Dallas, Collin, Rockwall and nearby counties, North Texas. In the wider directory it sits in the South region.
Cities in the 972 area code
- Dallas
- Plano
- Irving
- Garland
- Frisco
- McKinney
- Mesquite
- Carrollton
- Richardson
- Lewisville
- Allen
- Rowlett
- Rockwall
- DeSoto
Counties served by 972
Dallas County, Collin County, Denton County, Rockwall County, Kaufman County and Ellis County.
Time zone note: Almost all of Texas is Central; far-west El Paso is Mountain.
972 overlay codes and dialing
The 972 territory is covered by an overlay of 4 area codes: 214, 469, 945, 972. All of them serve the same geographic area, and the original code is 214. Because more than one code covers the same ground, 10-digit dialing is mandatory — you must dial the area code for every local call. New phone lines may be assigned any of these codes.
History of the 972 area code
972 went into service on September 14, 1996 as an overlay of 214, relieving number exhaustion in the Dallas area. Rather than splitting the region, the overlay lets existing customers keep their numbers while new lines draw from the added code. Learn more in our overlay guide.
Is 972 a scam or spam risk?
972 is a legitimate geographic area code, not a premium or toll line, so a call from it costs you nothing extra. That said, scammers frequently spoof real local area codes to look familiar on caller ID. A genuine 972 number on your screen is no guarantee the caller is in Dallas, TX or trustworthy. See spam & scam-risk area codes for how spoofing works and how to respond.
Other Texas area codes
Explore more
See every code in Texas, compare codes across the South region, or view all Central Time codes. You can also browse the 9XX block or the complete numeric list of US area codes.
New to how this all works? Start with how area codes work, then read up on overlays, 10-digit dialing, and spam & scam-risk codes. To check another number, use the area code lookup tool.
Quick answers
972 area code FAQ
Where is the 972 area code?
The 972 area code is in Texas, covering Dallas and its suburbs in Dallas, Collin, Rockwall and nearby counties, North Texas, in the South region.
What cities are in the 972 area code?
Cities in the 972 area code include Dallas, Plano, Irving, Garland, Frisco, McKinney, Mesquite, Carrollton, Richardson and Lewisville.
What time zone is 972 in?
972 is in the Central Time zone. Almost all of Texas is Central; far-west El Paso is Mountain.
What is the overlay for the 972 area code?
972 shares its territory with 214, 469 and 945. All 4 codes (214, 469, 945, 972) serve the same area, so 10-digit dialing is required for every call.
When did the 972 area code start?
972 went into service on September 14, 1996 as an overlay of 214.
Do I have to dial 10 digits for 972?
Yes. Because 972 is an overlay area, you must dial the full 10-digit number (area code + 7 digits) for every call.
Is 972 a toll-free or premium code?
No. 972 is a standard geographic area code, so calling it costs the same as any local or long-distance call on your plan. Toll-free calls use 800, 888, 877, 866, 855, 844 or 833.