Area code 651 is the primary telephone area code serving Saint Paul, Minnesota, and the expansive eastern portion of the Twin Cities metropolitan area. Established in the late 1990s, this area code covers a diverse geographic region ranging from bustling urban centers to quiet riverfront towns along the Mississippi.

The 651 area code is currently one of the few remaining urbanized area codes in the United States that does not use an overlay system. This allows residents in many service areas to continue using traditional seven-digit dialing for local calls, a rarity in modern telecommunications for major metropolitan regions.

The Geographical Reach of Area Code 651

The 651 numbering plan area (NPA) is strategically located in the east-central part of Minnesota. It is bordered by the St. Croix River to the east (forming the boundary with Wisconsin) and follows the path of the Mississippi River to the south and west.

The Heart of 651: Saint Paul

As the state capital of Minnesota, Saint Paul is the largest city within the 651 area code. Unlike its "Twin City" neighbor, Minneapolis (which retained the 612 area code), Saint Paul serves as the cultural and administrative hub for the 651 region. The area code encompasses all major neighborhoods within the city limits, including Summit Hill, Highland Park, and the East Side.

Eastern Suburbs and Beyond

Beyond the capital city, the 651 area code stretches deep into the eastern suburbs of the Twin Cities. This includes high-growth communities in Ramsey, Washington, and Dakota counties. Major suburban cities served by 651 include:

  • Eagan: A major corporate and residential hub.
  • Woodbury: One of the fastest-growing suburbs in the state.
  • Maplewood: Home to significant industrial and healthcare facilities.
  • Roseville: A vital retail and residential center north of Saint Paul.
  • Shoreview: Known for its lakes and residential parks.
  • Inver Grove Heights: A key community along the Mississippi River.

Southern and Northern Extensions

The service area extends significantly to the southeast along the Mississippi River, reaching all the way to Red Wing and Lake City. To the north, it covers portions of Chisago County, including towns like North Branch and Lindstrom. This wide coverage ensures that 651 serves as a vital communication link for both suburban commuters and more rural, river-based economies.

The History and Creation of Area Code 651

The creation of the 651 area code was a direct response to the explosive growth of telecommunications technology in the 1990s. Before 1998, the 612 area code served the entire Twin Cities metropolitan area and much of central Minnesota.

The Split from 612

By the mid-1990s, the surge in demand for cellular phones, pagers, and fax machines began to exhaust the available phone numbers in the 612 area code. In 1996, the region outside the Twin Cities was moved to area code 320, but even this was not enough.

On July 12, 1998, the 651 area code was officially implemented through a geographic split. The dividing line was largely determined by the Mississippi River. Essentially, the metropolitan areas east of the river were assigned to 651, while those to the west remained in 612.

The Falcon Heights Exception

One of the most interesting historical anomalies of the 651/612 split involves the University of Minnesota. Although much of the Falcon Heights area and the eastern part of the university campus are geographically located where 651 would apply, the university opted to keep its entire integrated telephone system within the 612 area code to maintain consistency across its Minneapolis and Saint Paul campuses.

Dialing Rules and the Lack of an Overlay

In the world of North American numbering, an "overlay" occurs when a second area code is added to the same geographic region as an existing one, requiring everyone to dial ten digits (area code + phone number) even for local calls.

As of current projections, the 651 area code remains one of the few urban regions without an overlay. This means that for many residents within the 651 zone, seven-digit dialing is still functional for calls made to other 651 numbers. However, with the national transition toward the 988 Suicide & Crisis Lifeline, ten-digit dialing has become the standard or a requirement in many parts of the country, and residents are encouraged to use the full ten-digit format to ensure call connectivity.

Time Zone Information

The entire 651 area code operates within the Central Time Zone (CT). It follows Central Standard Time (CST) during the winter months and Central Daylight Time (CDT) during the summer, following the standard United States Daylight Saving Time transitions.

Complete List of Cities and Communities in the 651 Area Code

The 651 area code serves a vast array of municipalities across several counties including Ramsey, Washington, Dakota, Chisago, Goodhue, and Wabasha. Below is a detailed list of cities and towns that use the 651 prefix:

  • Afton: A historic village on the St. Croix River.
  • Arden Hills: Home to several corporate headquarters and Bethel University.
  • Bayport: Located south of Stillwater on the St. Croix.
  • Birchwood Village: A small residential community on White Bear Lake.
  • Center City: The county seat of Chisago County.
  • Chisago City: Part of the scenic Chisago Lakes area.
  • Cottage Grove: A large suburban city in southern Washington County.
  • Dellwood: An affluent community near White Bear Lake.
  • Falcon Heights: Home to the Minnesota State Fairgrounds.
  • Forest Lake: A popular recreational and residential city in the north.
  • Hastings: A historic river town at the confluence of the Mississippi and St. Croix.
  • Hugo: A rapidly developing community north of White Bear Lake.
  • Lake City: Known for its location on Lake Pepin.
  • Lakeland: Situated along the St. Croix River.
  • Lino Lakes: Famous for its chain of lakes and wildlife refuges.
  • Little Canada: A suburb known for its unique heritage and central location.
  • Mahtomedi: A residential community on the shores of White Bear Lake.
  • Mendota Heights: An upscale suburb south of Saint Paul.
  • New Brighton: Located at the intersection of several major highways.
  • North Branch: A major commercial center for the northern 651 region.
  • North Saint Paul: A distinct city with a rich history near the capital.
  • Oakdale: A central suburb in Washington County.
  • Red Wing: Famous for its pottery and shoes, located in the southern reach of 651.
  • Rosemount: A large, developing city in Dakota County.
  • Saint Paul Park: An industrial and residential city on the Mississippi.
  • South Saint Paul: Historically known for its stockyards and meatpacking industry.
  • Stillwater: Widely regarded as the birthplace of Minnesota, located on the St. Croix.
  • Taylors Falls: Located at the scenic Dalles of the St. Croix.
  • Vadnais Heights: A thriving residential and business suburb.
  • Wabasha: One of the oldest cities on the upper Mississippi.
  • West Saint Paul: A separate city located immediately south of Saint Paul.
  • White Bear Lake: A major suburban city surrounding one of the region's largest lakes.
  • Wyoming: A gateway city to the northern lakes area.

Technical Details and Carriers

The 651 area code is managed under the North American Numbering Plan (NANP). Phone numbers in this region follow the standard format: (651) NXX-XXXX.

  • 651: The Area Code (Numbering Plan Area).
  • NXX: The Central Office Code (Prefix), which often identifies the specific local exchange or neighborhood where the number was originally assigned.
  • XXXX: The Subscriber Number, identifying the specific phone line.

Major Service Providers

Telecommunications services in the 651 area are provided by a mix of traditional landline carriers and modern wireless providers. Major companies operating in this region include:

  1. Lumen (formerly CenturyLink/Qwest): The primary Incumbent Local Exchange Carrier (ILEC) for much of the Saint Paul area.
  2. Frontier Communications: Provides services in several of the outlying suburban and rural areas.
  3. Verizon Wireless: A major mobile carrier with significant prefix assignments in the region.
  4. AT&T and T-Mobile: Heavily active in the metropolitan and suburban corridors.
  5. Comcast/Xfinity: Provides VoIP phone services across most of the 651 footprint.

Summary of Area Code 651

Area code 651 remains a vital part of Minnesota’s identity, representing the "East Side" of the Twin Cities. From the legislative halls of Saint Paul to the scenic bluffs of Red Wing, it connects hundreds of thousands of residents and businesses. Its unique status as a non-overlay urban area code makes it a notable example of effective number management in an era of high demand.

Frequently Asked Questions about 651 Area Code

Which city is area code 651? The primary city is Saint Paul, Minnesota. It also serves numerous suburbs like Eagan, Woodbury, and Stillwater.

What is the time zone for 651? The 651 area code is in the Central Time Zone (GMT -6).

Is 651 a toll-free number? No, 651 is a standard geographic area code for eastern Minnesota. It is not a toll-free prefix like 800, 888, or 877.

Can I still use 7-digit dialing in 651? While technically possible for some local calls within the 651 area due to the lack of an overlay, most carriers now recommend or require 10-digit dialing to comply with national standards and the 988 emergency lifeline requirements.

When was the 651 area code created? It was put into service on July 12, 1998, after splitting from the 612 area code.

What counties are in the 651 area code? It serves parts of Ramsey, Washington, Dakota, Chisago, Goodhue, and Wabasha counties.