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This is a list of telephone area codes in the U.S. state of Michigan: 231 – Northwestern Lower Michigan: Traverse City, Ludington, Muskegon, Petoskey, Big Rapids and Cheboygan. 248 – Northern Metro Detroit: All of Oakland County, Northville, and most of Northville Township; overlays with area code 947. 269 – Southwestern Michigan: Battle ...
The original North American area codes were established by the American Telephone and Telegraph Company (AT&T) in 1947, after the demonstration of regional Operator Toll Dialing during the World War II period. The program had the goal of speeding the connecting times for long-distance calling by eliminating intermediary telephone operators.
Older variable-length official US Government Printing Office abbreviations. AP. Abbreviations from the AP Stylebook [ 1 ](bold red text shows differences between GPO and AP) Codes and abbreviations for U.S. states, federal district, territories, and other regions. Name. Status of region. ISO. ANSI. USPS.
1993: split to create 905. 2001: overlaid by 647. 2013: overlaid by 437. 2025: overlaid by 942. area code 387 is reserved as a fifth code for the region. 417. Missouri (Springfield, Joplin, Branson, Lamar, Lebanon, and most of southwestern Missouri) 1950. created from parts of the area codes 314 and 816.
McLaren Health Care Corporation, headquartered in Grand Blanc, Michigan, includes 13 hospitals in Michigan, ambulatory surgery centers, imaging centers, a 490-member employed primary and specialty care physician network, commercial and Medicaid HMOs covering more than 732,838 lives in Michigan and Indiana, home health, infusion and hospice providers, pharmacy services, a clinical laboratory ...
The number 234 911-5678 is invalid, because the central office code must not be in the form N11. 394 259-2653 is invalid, because the NANP is not assigning area codes with 9 as the second digit. 314 159-2653 is invalid, because the office code must not begin with 1. 123 234-5678 is invalid, because the NPA must not begin with 0 or 1. [36] [37 ...
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Website. www.dteenergy.com. DTE Energy (formerly Detroit Edison until 1996) is a Detroit -based diversified energy company involved in the development and management of energy-related businesses and services in the United States and Canada. Its operating units include an electric utility serving 2.2 million customers and a natural gas utility ...