Metro Detroiters must adjust to new 679 area code by October

By Max Reinhart, Medianews Group

From three weeks, Metro Detroiters need to name 10 digits to finish telephone calls.

The change will take impact on October 7 and applies to calls from clients within the 313 -network quantity, stated the Michigan Public Service Fee on Tuesday in a press launch.

Officers stated that Metro Detroit has exhausted nearly all phone numbers with a 313 -net quantity to assign to new clients. Consequently, a brand new “overlay-network quantity” of 679 will likely be used, for which the 10-digit Kiezeerwereiste requires.

State officers introduced the brand new space code in March, once they began with a ‘tolerant alternative interval’, wherein 313 callers have been inspired to observe utilizing 10 digits for every name, though seven -digit exams continued to work. From 7 October, conversations with solely seven digits won’t be accomplished.

From 7 November, clients within the 313 code may be assigned a prefix of 679 once they begin with a brand new service or obtain an additional phone line. Nonetheless, no 679 numbers are allotted till all obtainable 313 numbers are exhausted. Civil servants say that 313 figures are at the moment on tempo for use up within the first quarter of 2028, however that may change based mostly on demand.

The brand new space code is assigned to clients in Detroit, Allen Park, Dearborn, Dearborn Heights, Ecorse, De Grosse Pointes, Hamtramck, Highland Park, Inkster, Lincoln Park, Redford Township, River Rouge and Taylor, MPSC stated.

Civil servants famous that the worth of a name, protection space or different charges and companies won’t change as a part of the brand new space code.

Particular three -digit numbers corresponding to 911, 411 and different numbers that could be obtainable in some communities will stay in pressure.

Present clients with a 313 space code wouldn’t have to alter their phone quantity, MPSC stated.

Callers are inspired to make sure that all automated alternative tools, purposes, software program or different varieties of tools are re -programmed to name 10 digits and to acknowledge the brand new 679Net quantity as a sound space quantity. Examples of this are life security methods, fax machines, web provide numbers, ports, pace youngsters, contact lists of cell phones, forwarding calls and voicemail companies. © 2025 The Detroit Information. Go to detroitnews.com. Distributed by Tribune Content material Company, LLC.

Initially revealed: September 17, 2025 at 11:03 am Edt