Utility Notification Center

The Hawaii One Call Center (“HOCC”) Advisory Committee is dedicated to promoting organized planning and installation of underground facilities as well as protecting those substructures once placed.

The Advisory Committee was appointed by the Hawaii Public Utilities Commission. Committee members represent each of the utility industries and the excavating community. There are also committee members representing the city and county of Honolulu and the counties of Hawaii, Maui and Kauai.

Because the law states that excavators must call before they dig, the HOCC is available to streamline the contact between excavators and the facility operators. Excavators can place one phone call instead of many.

This website has been developed as a reference tool for the Hawaii One Call Law. It is hoped that by making this information readily available, all citizens of Hawaii involved in excavating around underground facilities will Dig Safely!

NOW AVAILABLE: Ticket Talk for Two-Way Communication on Locate Requests

Ticket Talk is now live through the Hawaii One Call Center! This exciting new tool provides two-way communication between excavators, facility operators, and locators that is tied right to the locate request.

Click here to learn more

Fall 2026 One Call Seminars

Check back soon for the dates of the fall 2026 One Call Seminars. Click here to learn more about the informational meetings that take place each spring and fall.

Learn more about Hawaii One Call Center seminars

Quick Links

Online Dashboards

This new feature shows you detailed ticketing statistics from across the state in a convenient interactive format.

Dashboards(opens in new tab)

Hawaii One Call Center (HOCC) Phone Numbers

To call for a locate request dial 811 or (866) 423-7287.

For administrative questions please call (877) 668-4001.
Available from 8 am to 5 pm PST, Monday through Friday.

The Hawaii One Call Center is available 24 hours a day, seven days a week, every day of the year. Online service ticket requests are also available around the clock. Click here to submit a locate request(opens in new tab).

Observed Holidays

  • New Year’s Day
  • Dr. Martin Luther King, Jr., Day
  • Presidents’ Day
  • Prince Jonah Kuhio Kalanianaole Day
  • Good Friday
  • Memorial Day
  • King Kamehameha I Day
  • Independence Day
  • Statehood Day
  • Labor Day
  • General Election Day
  • Veterans’ Day
  • Thanksgiving Day
  • Christmas Day

Above are the legal holidays defined in the Hawaii Revised Statutes to be observed by the State. Holidays that fall on Saturdays are observed on the proceeding Friday; holidays that fall on Sundays are observed on the following Monday. Election Days are established by the State Constitution.