Hours of Operation

About Hours of Operations

MS811 Call Center Hours of Operation

Locate requests can be submitted by phone and are processed 24 hours a day, 7 days a week, 365 days a year.  Locates called in between 7:00 am and 5:00 pm Monday thru Friday are processed by MS811.  Locates called in on Saturday, Sunday, MS811 observed holidays or between 5:00pm and 7:00am on Monday thru Friday are processed by the TN811 call center.

Normal locate requests can be submitted online 24/7, but are only processed between 7:00 am and 5:00 pm Monday thru Friday, excluding MS811 observed holidays.  Emergency locate requests must always be submitted by phone.

Legal Holidays

According to MS Law, the following legal holidays are not considered as working days (“Working day” shall mean a twenty-four-hour period commencing from the time of receipt by Mississippi 811, Inc., excluding Saturdays, Sundays and legal holidays).
See the One-Call Law for more information.

  • New Year’s Day
  • Robert E Lee/Dr. Martin Luther King Jr Birthday
  • President’s Day/Washington’s Birthday Day
  • Confederate Memorial Day
  • Memorial Day
  • Independence Day
  • Labor Day
  • Columbus Day
  • Veterans Day
  • Thanksgiving Day
  • Christmas Day

MS811 Observed Holidays

The MS811 office will be closed on the following days.  Locate requests called in on these days will be processed by TN811.  The Day after Thanksgiving Day & Christmas Eve are not legal holidays and are considered as working days according to One Call law.

  • New Year’s Day
  • Memorial Day
  • Independence Day
  • Labor Day
  • Thanksgiving Day
  • Day after Thanksgiving Day (working day)
  • Christmas Eve (working day)
  • Christmas Day