231 Pretorius Street Wachthuis Building Directions, It also covers 22 counties, including Muskegon County, Grand Traverse County, Emmet County, Mecosta County, and Antrim County. Where is area code 231? Area code 231 is located in northwestern Michigan and covers Muskegon, Norton Shores, and Traverse City. Browse area code 231 phone numbers, prefixes and exchanges. state of Michigan. Map of Wachthuıs 231 SAPS Head Offıce Pretorıa Enter address of business to get driving directions Google Where is Safety and Security (Pretoria) located? Safety and Security (Pretoria) is located at Wachthuis, 7th Floor, Polleys Arcade, 231 Pretorius Street, Pretoria. Explore the world with Google Maps, providing navigation, real-time traffic updates, and local business information for your convenience. It is the only area code that serves the area. , Gauteng. Find out where 231 area code zone from, which states, counties and cities it covers. May 18, 2026 · Where is area code 231 located? Phone numbers with area code 231 originate from the northwestern portion of the Lower Peninsula of Michigan, centered around the western half of the territory generally defined as Northern Michigan. 4bj, jh, hn7du2, ha49q, bfom4, guq, tkks4, ow7di, qmo, hwcd,