March 2026One-Call Directory

Turning Awareness into ActionSurveys and studies reveal that professional excavators/contractors are highly aware of Common Ground Alliance’s (CGA) 811 initiative that requires they (as well as landscapers and homeowners) contact their state’s OneCall Center so underground utility lines are identified and marked before breaking ground.However, awareness is not enough.Damage from hitting underground utilities during excavation continues to happen, at an annual cost of $30 billion in the U.S. CGA also reports that more than half of these reported damages were caused by professional contractors/excavators, and the most-common root cause was “no notification made to 811.”Clearly, contractors/excavators must use 811 – before beginning every project that involves excavation or directional drilling – to protect yourselves, your crews, property and communities.It is as simple as calling 8-1-1, from within the U.S. state the digging is to occur – within the required timeframe. You answer basic questions about the location and details of the digging project, then get a ticket number and instructions.Even more convenient, contractors/excavators can use the states’ online ticketing systems. These allow you to submit a locate request and get a ticket – any time, any place – via Internet connection. Once signed up and logged in, you may also have access to ticket search, update and track, positive response, mobile app and other functions.To facilitate and support your consistent and effective use of 811, the following directory provides links to each state’s 811 website(s), for comprehensive information about safe-digging regulations, processes and guidelines. It also links you to the state’s “Online Ticketing System” (or “Portal”) for real-time access to locate requests and more.In addition, the directory shows each state’s specific law or practice, regarding the minimum amount of time to notify 811 before you intend to dig (“Advance Notice”) and how long you have to complete the requested excavation (“Marks Valid”), as available.Call or click 8-1-1Directory is based on CGA’s “811-in-your-state.”AlabamaAlabama 811Online Ticketing SystemAdvance Notice: 2 working daysMarks Valid: 20 working daysAlaskaAlaska 811Online Ticketing SystemAdvance Notice: 2 business days; 10 business days in remote locationsArizonaArizona 811Online Ticketing SystemAdvance Notice: 2 working daysMarks Valid: 15 working daysArkansasArkansas 811Online Ticketing SystemAdvance Notice: 2 working daysMarks Valid: 28 daysCaliforniaAdvance Notice: 2 working daysMarks Valid: 28 days (tickets valid)Underground Service Alert of Northern California & Nevada (USAN)Online Ticketing SystemDig Alert (Underground Service Alert of Southern Calif.)Online Ticketing SystemColoradoColorado 811Online Ticketing SystemAdvance Notice: 2 daysMarks Valid: 30 daysConnecticutCall Before You DigOnline Ticketing SystemAdvance Notice: 2 working daysRequest Valid: 30 days from creationDelawareDelmarva 811Online Ticketing SystemAdvance Notice: 2 business daysMarks Valid: 10 business daysFloridaSunshine 811Online Ticketing SystemAdvance Notice: 2 business daysMarks Valid: 30 calendar daysGeorgiaGeorgia 811Online Ticketing SystemAdvance Notice: 3 daysMarks Valid: 30 calendar daysHawaiiUtility Notification CenterOnline Ticketing SystemAdvance Notice: 5 working daysMarks Valid: 28 calendar daysIdahoAdvance Notice: 2 business daysMarks Valid: 4 weeksDIGLINE (state-wide, except five counties shown below)Online Ticketing SystemNorth Idaho 811 (Shoshone & Benewah Counties)Online Ticketing SystemDigSafe North Idaho 811 (Bonner, Boundary & Kootenai counties)Online Ticketing SystemIllinoisAdvance Notice: 48 hours; maximum 14 calendar daysMarks Valid: Life of ticket, or marks become indistinguishableJulie (statewide)Online Ticketing SystemChicago 811 (metro area)
Online Ticketing SystemIndianaIndiana 811Online Ticketing SystemAdvance Notice: 2 working daysMarks Valid: 20 daysIowaIowa One CallOnline Ticketing SystemAdvance Notice: 2 working daysMarks Valid: 25 calendar daysKansasKansas 811Online Ticketing SystemAdvance Notice: 2 working daysMarks Valid: 20 calendar daysKentuckyKentucky 811Online Ticketing SystemAdvance Notice: 2 working daysMarks Valid: 21 daysLouisianaLouisiana 811Online Ticketing SystemAdvance Notice: 2 business daysMarks Valid: 20 calendar daysMaineDigSafeOnline Ticketing SystemAdvance Notice: 3 business daysMarks Valid: 60 daysMarylandMiss UtilityOnline Ticketing SystemAdvance Notice: 2 business daysMarks Valid: 12 business daysMassachusettsDigSafeOnline Ticketing SystemAdvance Notice: 3 business daysMarks Valid: 30 daysMichiganMiss Dig 811Online Ticketing SystemAdvance Notice: 72 hours; maximum 14 daysMarks Valid: 21 daysMinnesotaGopher State One Call (GSOC)Online Ticketing SystemAdvance Notice: 48 hoursMarks Valid: 14 calendar daysMississippiMississippi 811Online Ticketing SystemAdvance Notice: 3 working daysMarks Valid: 14 calendar daysMissouriMissouri 811Online Ticketing SystemAdvance Notice: 2 working daysMarks Valid: 2 daysMontanaMontana 811Online Ticketing SystemAdvance Notice: 2 business daysMarks Valid: 30 daysNebraskaNebraska 811Online Ticketing SystemAdvance Notice: 2 business daysMarks Valid: 17 calendar daysNevadaUnderground Service Alert North (USAN)Online Ticketing SystemAdvance Notice: 2 working daysMarks Valid: 28 calendar daysNew HampshireDigSafeOnline Ticketing SystemAdvance Notice: 3 business daysMarks Valid: 30 daysNew JerseyNew Jersey One CallOnline Ticketing SystemAdvance Notice: 3 business daysMarks Valid: 45 business daysNew MexicoNM 811Online Ticketing SystemAdvance Notice: 2 working daysMarks Valid: 15 working daysNew YorkAdvance Notice: 2 working daysMarks Valid: 10 working daysUDig NY (state-wide, except NYC and Long Island)Online Ticketing SystemNew York 811 (NYC and Long IslandOnline Ticketing SystemNorth CarolinaNC 811Online Ticketing SystemAdvance Notice: 3-12 working daysMarks Valid: 15 working daysNorth DakotaNorth Dakota 811Online Ticketing SystemAdvance Notice: 2 business daysMarks Valid: 21 calendar daysOhio
Ohio 811Online Ticketing SystemAdvance Notice: 48 hoursMarks Valid: As long as visibleOklahomaOKIE 811Online SystemAdvance Notice: 48 hours; maximum 14 daysMarks Valid: 14 calendar days, depending on visibilityOregonOregon 811 Utility Notification CenterOnline Ticketing SystemAdvance Notice: 2 daysMarks Valid: 30 daysPennsylvaniaPennsylvania 811Online Ticketing SystemAdvance Notice: 3-10 business days (Construction phase); 10-90 business days (Design phase)Marks Valid: As long as equipment is kept onsiteRhode IslandDigSafeOnline Ticketing SystemAdvance Notice: 72 hours excluding weekends and holidaysMarks Valid: Life of excavationSouth CarolinaSouth Carolina 811Online Ticketing SystemAdvance Notice: 3 working days; maximum 10 working daysMarks Valid: 15 working daysSouth DakotaSouth Dakota 811Online Ticketing SystemAdvance Notice: 48 hoursMarks Valid: 21 working days, providing marks are visibleTennesseeTennessee 811Online Ticketing SystemAdvance Notice: 3 working days; maximum 10 working daysMarks Valid: 15 calendar daysTexasTexas 811Online Ticketing SystemAdvance Notice: 2 working days; maximum 14 daysMarks Valid: 14 daysUtahBlue Stakes of Utah 811Online Ticketing SystemAdvance Notice: 3 business daysMarks Valid: 21 calendar daysVermontDigSafeOnline Ticketing SystemAdvance Notice: 48 hoursMarks Valid: 30 daysVirginiaVA 811Online Ticketing SystemAdvance Notice: 48 hoursMarks Valid: 15 working daysWashingtonDigSafe WAOnline Ticketing SystemAdvance Notice: 2 business daysMarks Valid: 45 days (life of the ticket)
Washington, D.C.Miss Utility 811Online Ticketing SystemAdvance Notice: 2 business daysMarks Valid: 15 business daysWest VirginiaWest Virginia 811Online Ticketing SystemAdvance Notice: 2 days; maximum 10 daysMarks Valid: 10 days, while visibleWisconsinDiggers HotlineOnline Ticketing SystemAdvance Notice: 3 working daysMarks Valid: Length of project, if maintainedWyomingWyoming 811Online Ticketing SystemAdvance Notice: 2 business daysMarks Valid: 14 business days CanadaIn Canada, the 8-1-1- phone number does not apply. Instead, use the specific phone number, or website & online ticketing system, for each province/state, listed below.Alberta(800) 242‑3447Utility Safety PartnersOnline Ticketing SystemAdvance Notice: 3 working daysMarks Valid: 30 daysBritish Columbia(800) 474-6886BC One CallOnline Ticketing SystemAdvance Notice: 3 working daysMarks Valid: 30 calendar daysManitoba(800) 940-3447Click Before You Dig MBOnline Ticketing SystemAdvance Notice: 3 working daysMarks Valid: 30 daysNew Brunswick(866) 344-5463Info ExcavationOnline Ticketing SystemAdvance Notice: 3 working daysMarks Valid: End date written on the requestNewfoundland & Labrador(800) 663-9228Info ExcavationOnline Ticketing SystemAdvance Notice: 3 working daysMarks Valid: End date written on the requestNova Scotia(800) 663-9228Info ExcavationOnline Ticketing SystemAdvance Notice: 3 working daysMarks Valid: End date written on the requestOntario(800) 400-2255Ontario One CallOnline Ticketing SystemAdvance Notice: 5 business daysMarks Valid: 60 daysPrince Edward Island(866) 344-5463Info ExcavationOnline Ticketing SystemAdvance Notice: 3 working daysMarks Valid: End date written on the requestQuebec(800) 663-9228Info ExcavationOnline Ticketing SystemAdvance Notice: 3 working daysMarks Valid: End date written on the requestSasketchewan(866) 828-4888Sask 1^st CallOnline Ticketing SystemAdvance Notice: 3 business daysMarks Valid: 30 calendar days UICoverAd—Melfred BorzallContentAd—HardRock InfrastructureMastheadAd—TRUVACEditor's LogAd—UIC 2027PodcastsNewslineAdvantage Directional DrillingPCCA fly-inUCTA NewsletterPPI trainingOne-Call DirectoryRehab OpeningTech Tips 1Tech Tips 2NASSCO year-in-review/past presidentKEG – cleaning for liningRehab Product NewsAd—PGJCircBusinessBusiness PeopleNew ProductsBusiness cardsCalendar of EventsSales OfficesAd—UI Subscriptions